U.S. patent application number 16/060554 was filed with the patent office on 2018-12-06 for header pipe for heat exchanger, and heat exchanger.
The applicant listed for this patent is DANFOSS MICRO CHANNEL HEAT EXCHANGER (JIAXING) CO., LTD.. Invention is credited to Lisha Chen, Junfeng Jin.
Application Number | 20180347916 16/060554 |
Document ID | / |
Family ID | 59012645 |
Filed Date | 2018-12-06 |
United States Patent
Application |
20180347916 |
Kind Code |
A1 |
Jin; Junfeng ; et
al. |
December 6, 2018 |
HEADER PIPE FOR HEAT EXCHANGER, AND HEAT EXCHANGER
Abstract
A header pipe (1) for a heat exchanger (100), and a heat
exchanger (100). The header pipe (1) comprises: a first header pipe
portion (11) extending in the axial direction of the header pipe
(1) and having a first edge (111) and a second edge (112) that
extend in the axial direction; and a second header pipe portion
(12) extending in the axial direction of the header pipe (1) and
having a first edge (121) and a second edge (122) that extend in
the axial direction, wherein the first edge (111) of the first
header pipe portion (11) is connected to the first edge (121) of
the second header pipe portion (12), and the second edge (112) of
the first header pipe portion (11) is connected to the second edge
(122) of the second header pipe portion (12). The header pipe (1)
of the present invention is easy to assemble, and improves the
welding efficiency and welding quality.
Inventors: |
Jin; Junfeng; (Zhejiang,
CN) ; Chen; Lisha; (Zhejiang, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
DANFOSS MICRO CHANNEL HEAT EXCHANGER (JIAXING) CO., LTD. |
Zhejiang |
|
CN |
|
|
Family ID: |
59012645 |
Appl. No.: |
16/060554 |
Filed: |
August 3, 2016 |
PCT Filed: |
August 3, 2016 |
PCT NO: |
PCT/CN2016/093047 |
371 Date: |
June 8, 2018 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
F28F 9/18 20130101; F28D
1/053 20130101; F28F 2009/0287 20130101; F28D 1/05366 20130101;
F28F 9/0217 20130101; F28F 9/0202 20130101; F28D 1/0443
20130101 |
International
Class: |
F28F 9/02 20060101
F28F009/02; F28F 9/18 20060101 F28F009/18; F28D 1/04 20060101
F28D001/04 |
Foreign Application Data
Date |
Code |
Application Number |
Dec 10, 2015 |
CN |
201510915140.6 |
Claims
1. A header pipe for a heat exchanger, comprising: a first header
pipe part extending in an axial direction of the header pipe, the
first header pipe part having a first edge and a second edge
extending in the axial direction; and a second header pipe part
extending in the axial direction of the header pipe, the second
header pipe part having a first edge and a second edge extending in
the axial direction, wherein the first edge of the first header
pipe part is connected to the first edge of the second header pipe
part, and the second edge of the first header pipe part is
connected to the second edge of the second header pipe part.
2. The header pipe for a heat exchanger as claimed in claim 1,
wherein: a through-hole for connecting a heat exchange tube is
formed in each of the first header pipe part and the second header
pipe part.
3. The header pipe for a heat exchanger as claimed in claim 1,
wherein: at least one pair of adjacent edges amongst the first edge
of the first header pipe part and the first edge of the second
header pipe part, and the second edge of the first header pipe part
and the second edge of the second header pipe part is provided with
a flange, with the adjacent edges being connected by means of the
flange.
4. The header pipe for a heat exchanger as claimed in claim 3,
wherein: the flange protrudes towards the outside of the header
pipe.
5. The header pipe for a heat exchanger as claimed in claim 1,
wherein: at least one pair of adjacent edges amongst the first edge
of the first header pipe part and the first edge of the second
header pipe part, and the second edge of the first header pipe part
and the second edge of the second header pipe part is covered with
a strip, the strip being connected to the at least one pair of
adjacent edges.
6. The header pipe for a heat exchanger as claimed in claim 5,
further comprising: a partition plate extending in the axial
direction, the partition plate dividing an internal cavity of the
header pipe into multiple chambers, wherein the strip is connected
directly to the partition plate.
7. The header pipe for a heat exchanger as claimed in claim 5,
further comprising: a partition plate extending in the axial
direction, the partition plate dividing an internal cavity of the
header pipe into multiple chambers, and an individual connecting
plate, connected directly to the strip and the partition plate
respectively.
8. The header pipe for a heat exchanger as claimed in claim 6,
wherein: the strip is disposed outside the header pipe, a gap is
provided between the at least one pair of adjacent edges, and the
partition plate is connected directly to the strip via the gap.
9. The header pipe for a heat exchanger as claimed in claim 7,
wherein: the strip is disposed outside the header pipe, a gap is
provided between the at least one pair of adjacent edges, and the
connecting plate is connected directly to the strip and the
partition plate respectively via the gap.
10. The header pipe for a heat exchanger as claimed in claim 7,
wherein: the connecting plate is provided with a through-hole
allowing a refrigerant to pass through.
11. The header pipe for a heat exchanger as claimed in claim 5,
wherein: the at least one pair of adjacent edges covered with the
strip have a substantially planar shape, and the strip has a
substantially planar shape.
12. The header pipe for a heat exchanger as claimed in claim 1,
further comprising: a partition plate extending in the axial
direction, the partition plate dividing an internal cavity of the
header pipe into multiple chambers; the partition plate has a first
part, and two second parts extending transversely in opposite
directions from two longitudinally extending opposite edges of the
first part, wherein longitudinal edges, opposite two edges of the
first part respectively, of the two second parts are connected to
an inner wall of the header pipe.
13. The header pipe for a heat exchanger as claimed in claim 12,
wherein: the two second parts are substantially perpendicular to
the first part.
14. The header pipe for a heat exchanger as claimed in claim 12,
wherein: the first part passes through an axis of the header
pipe.
15. The header pipe for a heat exchanger as claimed in claim 12,
wherein: when viewed in cross section, the partition plate is
centrosymmetric relative to the center of the partition plate.
16. The header pipe for a heat exchanger as claimed in claim 12,
wherein: at least one pair of adjacent edges amongst the first edge
of the first header pipe part and the first edge of the second
header pipe part, and the second edge of the first header pipe part
and the second edge of the second header pipe part is covered with
a strip, the strip being connected to the at least one pair of
adjacent edges, and an individual connecting plate being connected
directly to the strip and the first part of the partition plate
respectively.
17. The header pipe for a heat exchanger as claimed in claim 16,
wherein: the connecting plate and the first part of the partition
plate are substantially in the same plane.
18. A heat exchanger, comprising: the header pipe for a heat
exchanger as claimed in claim 1.
19. A heat exchanger, comprising: two first header pipes; a second
header pipe, being the header pipe for a heat exchanger as claimed
in claim 1, the second header pipe comprising a partition plate,
the partition plate extending in the second header pipe
substantially in a longitudinal direction of the second header pipe
and being used to divide an internal cavity in the second header
pipe into a first chamber and a second chamber; a first heat
exchange tube, connected between one of the two first header pipes
and the second header pipe and being in fluid communication with
said one of the two first header pipes and the second chamber of
the second header pipe; a second heat exchange tube, connected
between said one of the two first header pipes and the second
header pipe and being in fluid communication with said one of the
two first header pipes and the first chamber of the second header
pipe; a third heat exchange tube, connected between the other one
of the two first header pipes and the second header pipe and being
in fluid communication with said other one of the two first header
pipes and the first chamber of the second header pipe; and a fourth
heat exchange tube, connected between said other one of the two
first header pipes and the second header pipe and being in fluid
communication with said other one of the two first header pipes and
the second chamber of the second header pipe.
20. The heat exchanger as claimed in claim 19, wherein: the second
header pipe is disposed between the two first header pipes, and the
first heat exchange tube, the second heat exchange tube, the third
heat exchange tube and the fourth heat exchange tube extend in
substantially the same direction.
21. The heat exchanger as claimed in claim 19, wherein: a
refrigerant can flow from the first heat exchange tube to the first
chamber of the second header pipe through said one of the two first
header pipes and the second heat exchange tube, then flow from the
first chamber of the second header pipe to the third heat exchange
tube, and flow from the third heat exchange tube into the second
chamber of the second header pipe through said other one of the two
first header pipes and the fourth heat exchange tube.
22. The heat exchanger as claimed in claim 19, wherein: the heat
exchange capability of the first heat exchange tube is greater than
the heat exchange capability of the second heat exchange tube, and
the heat exchange capability of the third heat exchange tube is
greater than the heat exchange capability of the fourth heat
exchange tube.
23. The heat exchanger as claimed in claim 19, wherein: the number
of flow channels in the first heat exchange tube is greater than
the number of flow channels in the second heat exchange tube, and
the number of flow channels in the third heat exchange tube is
greater than the number of flow channels in the fourth heat
exchange tube; moreover, a flow cross-sectional area in the first
heat exchange tube is greater than a flow cross-sectional area in
the second heat exchange tube, and a flow cross-sectional area in
the third heat exchange tube is greater than a flow cross-sectional
area in the second heat exchange tube.
24. The heat exchanger as claimed in claim 19, wherein: the
partition plate has a first part, and two second parts extending
transversely in opposite directions from two longitudinally
extending opposite edges of the first part, wherein longitudinal
edges, opposite two edges of the first part respectively, of the
two second parts are connected to an inner wall of the second
header pipe.
25. The heat exchanger as claimed in claim 24, wherein: the width
of the first part is less than a dimension of the internal cavity
of the second header pipe in the width direction of the first part,
such that in the width direction of the first part, the two second
parts are respectively located between the first heat exchange tube
and the second heat exchange tube, and between the third heat
exchange tube and the fourth heat exchange tube.
26. The heat exchanger as claimed in claim 19, wherein: the first
to the fourth heat exchange tubes respectively extend in a first
direction, and are arranged in a second direction substantially
perpendicular to the first direction, with the first heat exchange
tube and the fourth heat exchange tube being located on one side of
the heat exchanger, and the second heat exchange tube and the third
heat exchange tube being located on another side of the heat
exchanger. Said one side and said other side are opposite each
other in a third direction substantially perpendicular to the first
direction and the second direction.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a National Stage application of
International Patent Application No. PCT/CN2016/093047, filed on
Aug. 3, 2016, which claims priority to Chinese Patent Application
No. 201510915140.6, filed on Dec. 10, 2015, each of which is hereby
incorporated by reference in its entirety.
TECHNICAL FIELD
[0002] The present invention relates to a header pipe for a heat
exchanger, and a heat exchanger.
BACKGROUND
[0003] A conventional heat exchanger, such as a microchannel heat
exchanger, comprises heat exchange tubes such as flat tubes and
header pipes, with partition plates being provided in the header
pipes, and the header pipes having through-holes for connecting the
heat exchange tubes.
SUMMARY
[0004] An object of the embodiments of the present invention is to
provide a header pipe for a heat exchanger, and a heat exchanger,
whereby for example the welding quality of the heat exchanger is
improved.
[0005] An embodiment of the present invention provides a heat
exchanger, comprising: a first header pipe part extending in an
axial direction of the header pipe, the first header pipe part
having a first edge and a second edge extending in the axial
direction; and a second header pipe part extending in the axial
direction of the header pipe, the second header pipe part having a
first edge and a second edge extending in the axial direction,
wherein the first edge of the first header pipe part is connected
to the first edge of the second header pipe part, and the second
edge of the first header pipe part is connected to the second edge
of the second header pipe part.
[0006] According to an embodiment of the present invention, a
through-hole for connecting a heat exchange tube is formed in each
of the first header pipe part and the second header pipe part.
[0007] According to an embodiment of the present invention, at
least one pair of adjacent edges amongst the first edge of the
first header pipe part and the first edge of the second header pipe
part, and the second edge of the first header pipe part and the
second edge of the second header pipe part is provided with a
flange, with the adjacent edges being connected by means of the
flange.
[0008] According to an embodiment of the present invention, the
flange protrudes towards the outside of the header pipe.
[0009] According to an embodiment of the present invention, at
least one pair of adjacent edges amongst the first edge of the
first header pipe part and the first edge of the second header pipe
part, and the second edge of the first header pipe part and the
second edge of the second header pipe part is covered with a strip,
the strip being connected to the at least one pair of adjacent
edges.
[0010] According to an embodiment of the present invention, the
header pipe for a heat exchanger further comprises: a partition
plate extending in the axial direction, the partition plate
dividing an internal cavity of the header pipe into multiple
chambers, wherein the strip is connected directly to the partition
plate.
[0011] According to an embodiment of the present invention, the
header pipe for a heat exchanger further comprises: a partition
plate extending in the axial direction, the partition plate
dividing an internal cavity of the header pipe into multiple
chambers, and an individual connecting plate, connected directly to
the strip and the partition plate respectively.
[0012] According to an embodiment of the present invention, the
strip is disposed outside the header pipe, a gap is provided
between the at least one pair of adjacent edges, and the partition
plate is connected directly to the strip via the gap.
[0013] According to an embodiment of the present invention, the
strip is disposed outside the header pipe, a gap is provided
between the at least one pair of adjacent edges, and the connecting
plate is connected directly to the strip and the partition plate
respectively via the gap.
[0014] According to an embodiment of the present invention, the
connecting plate is provided with a through-hole allowing a
refrigerant to pass through.
[0015] According to an embodiment of the present invention, the at
least one pair of adjacent edges covered with the strip have a
substantially planar shape, and the strip has a substantially
planar shape.
[0016] According to an embodiment of the present invention, the
header pipe for a heat exchanger further comprises: a partition
plate extending in the axial direction, the partition plate
dividing an internal cavity of the header pipe into multiple
chambers; the partition plate has a first part, and two second
parts extending transversely in opposite directions from two
longitudinally extending opposite edges of the first part, wherein
longitudinal edges, opposite two edges of the first part
respectively, of the two second parts are connected to an inner
wall of the header pipe.
[0017] According to an embodiment of the present invention, the two
second parts are substantially perpendicular to the first part.
[0018] According to an embodiment of the present invention, the
first part passes through an axis of the header pipe.
[0019] According to an embodiment of the present invention, when
viewed in cross section, the partition plate is centrosymmetric
relative to the center of the partition plate.
[0020] According to an embodiment of the present invention, at
least one pair of adjacent edges amongst the first edge of the
first header pipe part and the first edge of the second header pipe
part, and the second edge of the first header pipe part and the
second edge of the second header pipe part is covered with a strip,
the strip being connected to the at least one pair of adjacent
edges, and an individual connecting plate being connected directly
to the strip and the first part of the partition plate
respectively.
[0021] According to an embodiment of the present invention, the
connecting plate and the first part of the partition plate are
substantially in the same plane.
[0022] According to an embodiment of the present invention, a heat
exchanger is provided, the heat exchanger comprising: the header
pipe for a heat exchanger as described above.
[0023] According to an embodiment of the present invention, a heat
exchanger is provided, the heat exchanger comprising: two first
header pipes; a second header pipe, being the header pipe for a
heat exchanger as described above, the second header pipe
comprising a partition plate, the partition plate extending in the
second header pipe substantially in a longitudinal direction of the
second header pipe and being used to divide an internal cavity in
the second header pipe into a first chamber and a second chamber; a
first heat exchange tube, connected between one of the two first
header pipes and the second header pipe and being in fluid
communication with said one of the two first header pipes and the
second chamber of the second header pipe; a second heat exchange
tube, connected between said one of the two first header pipes and
the second header pipe and being in fluid communication with said
one of the two first header pipes and the first chamber of the
second header pipe; a third heat exchange tube, connected between
the other one of the two first header pipes and the second header
pipe and being in fluid communication with said other one of the
two first header pipes and the first chamber of the second header
pipe; and a fourth heat exchange tube, connected between the other
one of the two first header pipes and the second header pipe and
being in fluid communication with said other one of the two first
header pipes and the second chamber of the second header pipe.
[0024] According to an embodiment of the present invention, the
second header pipe is disposed between the two first header pipes,
and the first heat exchange tube, the second heat exchange tube,
the third heat exchange tube and the fourth heat exchange tube
extend in substantially the same direction.
[0025] In the heat exchanger according to an embodiment of the
present invention, a refrigerant can flow from the first heat
exchange tube to the first chamber of the second header pipe
through said one of the two first header pipes and the second heat
exchange tube, then flow from the first chamber of the second
header pipe to the third heat exchange tube, and flow from the
third heat exchange tube into the second chamber of the second
header pipe through said other one of the two first header pipes
and the fourth heat exchange tube.
[0026] According to an embodiment of the present invention, the
cross-sectional area of the first heat exchange tube is greater
than the cross-sectional area of the second heat exchange tube, and
the cross-sectional area of the third heat exchange tube is greater
than the cross-sectional area of the fourth heat exchange tube.
[0027] According to an embodiment of the present invention, the
width of the first heat exchange tube is greater than the width of
the second heat exchange tube, and the width of the third heat
exchange tube is greater than the width of the fourth heat exchange
tube.
[0028] According to an embodiment of the present invention, the
heat exchange capability of the first heat exchange tube is greater
than the heat exchange capability of the second heat exchange tube,
and the heat exchange capability of the third heat exchange tube is
greater than the heat exchange capability of the fourth heat
exchange tube.
[0029] According to an embodiment of the present invention, the
number of flow channels in the first heat exchange tube is greater
than the number of flow channels in the second heat exchange tube,
and the number of flow channels in the third heat exchange tube is
greater than the number of flow channels in the fourth heat
exchange tube; moreover, a flow cross-sectional area in the first
heat exchange tube is greater than a flow cross-sectional area in
the second heat exchange tube, and a flow cross-sectional area in
the third heat exchange tube is greater than a flow cross-sectional
area in the second heat exchange tube.
[0030] According to an embodiment of the present invention, the
partition plate has a first part, and two second parts extending
transversely in opposite directions from two longitudinally
extending opposite edges of the first part, wherein longitudinal
edges, opposite two edges of the first part respectively, of the
two second parts are connected to an inner wall of the second
header pipe.
[0031] According to an embodiment of the present invention, the two
second parts are substantially perpendicular to the first part.
[0032] According to an embodiment of the present invention, the
width of the first part is less than a dimension of the internal
cavity of the second header pipe in the width direction of the
first part, such that in the width direction of the first part, the
two second parts are respectively located between the first heat
exchange tube and the second heat exchange tube, and between the
third heat exchange tube and the fourth heat exchange tube.
[0033] According to an embodiment of the present invention, the
first part passes through an axis of the second header pipe.
[0034] According to an embodiment of the present invention, the
second header pipe has an internal cavity with a circular cross
section.
[0035] According to an embodiment of the present invention, when
viewed in cross section, the partition plate is centrosymmetric
relative to the center of the partition plate.
[0036] According to an embodiment of the present invention, the
first to the fourth heat exchange tubes respectively extend in a
first direction, and are arranged in a second direction
substantially perpendicular to the first direction, with the first
heat exchange tube and the fourth heat exchange tube being located
on one side of the heat exchanger, and the second heat exchange
tube and the third heat exchange tube being located on another side
of the heat exchanger. Said one side and said other side are
opposite each other in a third direction substantially
perpendicular to the first direction and the second direction.
[0037] In the heat exchanger according to an embodiment of the
present invention, for example, the welding quality of the heat
exchanger can be improved.
BRIEF DESCRIPTION OF THE DRAWINGS
[0038] FIG. 1 is a schematic three-dimensional view of a header
pipe of a heat exchanger according to a first embodiment of the
present invention;
[0039] FIG. 2 is a schematic three-dimensional view of a partition
plate and an end cap of the heat exchanger according to the first
embodiment of the present invention when same are fitted
together;
[0040] FIG. 3 is a schematic top view of the header pipe of the
heat exchanger according to the first embodiment of the present
invention;
[0041] FIG. 4 is a schematic three-dimensional view of a header
pipe of a heat exchanger according to a second embodiment of the
present invention;
[0042] FIG. 5 is a schematic top view of the header pipe of the
heat exchanger according to the second embodiment of the present
invention when fitted together;
[0043] FIG. 6 is a schematic three-dimensional view of a header
pipe of a heat exchanger according to a third embodiment of the
present invention;
[0044] FIG. 7 is a schematic top view of the header pipe of the
heat exchanger according to the third embodiment of the present
invention;
[0045] FIG. 8 is a schematic three-dimensional view of a partition
plate, connecting plates and strips of the heat exchanger according
to the third embodiment of the present invention;
[0046] FIG. 9 is a schematic three-dimensional view of flow
gathering of a heat exchanger according to a fourth embodiment of
the present invention;
[0047] FIG. 10 is a schematic top view of the header pipe of the
heat exchanger according to the fourth embodiment of the present
invention;
[0048] FIG. 11 is a schematic three-dimensional view of a heat
exchanger according to an embodiment of the present invention;
and
[0049] FIG. 12 is a schematic partial enlarged view of a heat
exchanger according to an embodiment of the present invention.
DETAILED DESCRIPTION
[0050] Referring to FIGS. 1 to 12, a heat exchanger 100 according
to an embodiment of the present invention comprises: heat exchange
tubes 5, such as flat tubes; fins disposed between the heat
exchange tubes 5; and header pipes 1.
[0051] As shown in FIGS. 11 and 12, a heat exchanger 100 according
to other embodiments of the present invention comprises: two header
pipes 1A; a header pipe 1 (described in detail below), the header
pipe 1 comprising a partition plate 2, the partition plate 2
extending in the header pipe 1 substantially in a longitudinal
direction of the header pipe 1 and being used to divide an internal
cavity in the header pipe 1 into a first chamber A and a second
chamber B; first heat exchange tubes 5a, connected between one of
the two header pipes 1A and the header pipe 1 and being in fluid
communication with said one of the two header pipes 1A and the
second chamber B of the header pipe 1; second heat exchange tubes
5b, connected between said one of the two header pipes 1A and the
header pipe 1 and being in fluid communication with said one of the
two header pipes 1A and the first chamber A of the header pipe 1;
third heat exchange tubes 5c, connected between the other one of
the two header pipes 1A and the header pipe 1 and being in fluid
communication with said other one of the two header pipes 1A and
the first chamber A of the header pipe 1; and fourth heat exchange
tubes 5d, connected between the other one of the two header pipes
1A and the header pipe 1 and being in fluid communication with said
other one of the two header pipes 1A and the second chamber B of
the header pipe 1. In other words, the heat exchange tubes 5
comprise the first heat exchange tubes 5a, the second heat exchange
tubes 5b, the third heat exchange tubes 5c and the fourth heat
exchange tubes 5d. Fins are provided between the first heat
exchange tubes 5a, between the second heat exchange tubes 5b,
between the third heat exchange tubes 5c and between the fourth
heat exchange tubes 5d. According to some embodiments of the
present invention, the header pipe 1 is disposed between the two
header pipes 1A, and the first heat exchange tubes 5a, the second
heat exchange tubes 5b, the third heat exchange tubes 5c and the
fourth heat exchange tubes 5d extend substantially in the same
direction. A refrigerant can flow from the first heat exchange tube
5a to the first chamber A of the header pipe 1 through said one of
the two header pipes 1A and the second heat exchange tube 5b, then
flow from the first chamber A of the header pipe 1 to the third
heat exchange tube 5c, and flow from the third heat exchange tube
5c into the second chamber B of the header pipe 1 through said
other one of the two header pipes 1A and the fourth heat exchange
tube 5d. For example, after evaporating in the first heat exchange
tube 5a, the refrigerant flows to the first chamber A of the header
pipe 1 through one of the two header pipes 1A and the second heat
exchange tube 5b, then flows from the first chamber A to the third
heat exchange tube 5c, and after condensing in the third heat
exchange tube 5c, flows into the second chamber B of the header
pipe 1 through the other one of the two header pipes 1A and the
fourth heat exchange tube 5d, so as to form a loop.
[0052] As shown in FIGS. 11 and 12, according to an embodiment of
the present invention, the cross-sectional area of the first heat
exchange tube 5a is greater than the cross-sectional area of the
second heat exchange tube 5b, and the cross-sectional area of the
third heat exchange tube 5c is greater than the cross-sectional
area of the fourth heat exchange tube 5d. The width of the first
heat exchange tube 5a is greater than the width of the second heat
exchange tube 5b, and the width of the third heat exchange tube 5c
is greater than the width of the fourth heat exchange tube 5d. The
heat exchange capability of the first heat exchange tube is greater
than the heat exchange capability of the second heat exchange tube,
and the heat exchange capability of the third heat exchange tube is
greater than the heat exchange capability of the fourth heat
exchange tube. For example, the number of flow channels in the
first heat exchange tube is greater than the number of flow
channels in the second heat exchange tube, and the number of flow
channels in the third heat exchange tube is greater than the number
of flow channels in the fourth heat exchange tube; moreover, a flow
cross-sectional area in the first heat exchange tube is greater
than a flow cross-sectional area in the second heat exchange tube,
and a flow cross-sectional area in the third heat exchange tube is
greater than a flow cross-sectional area in the second heat
exchange tube. According to an embodiment of the present invention,
referring to FIGS. 1 to 10 and 12, the partition plate 2 or a main
body 21 of the partition plate 2 has a first part 211, and two
second parts 212 extending transversely in opposite directions from
two longitudinally extending opposite edges of the first part 211,
wherein longitudinal edges, opposite two edges of the first part
211 respectively, of the two second parts 212 are connected to an
inner wall of the header pipe 1. The two second parts 212 may be
substantially perpendicular to the first part 211. The width of the
first part 211 is less than the dimension of the internal cavity of
the header pipe 1 in the width direction of the first part 211,
such that in the width direction of the first part 211, the two
second parts 212 are respectively located between the first heat
exchange tube 5a and the second heat exchange tube 5b, and between
the third heat exchange tube 5c and the fourth heat exchange tube
5d. The first part 211 may pass through an axis of the header pipe
1. The header pipe 1 may have an internal cavity with a circular
cross section. When viewed in cross section, the partition plate 2
or the main body 21 of the partition plate 2 is centrosymmetric,
relative to the center of the partition plate 2 or the center of
the main body 21 of the partition plate 2.
[0053] According to an embodiment of the present invention, as
shown in FIGS. 11 and 12, the first heat exchange tubes 5a to the
fourth heat exchange tubes 5d respectively extend in a first
direction, and are arranged in a second direction substantially
perpendicular to the first direction, with the first heat exchange
tubes 5a and the fourth heat exchange tubes 5d being located on one
side of the heat exchanger, and the second heat exchange tubes 5b
and the third heat exchange tubes 5c being located on another side
of the heat exchanger. Said one side and said other side are
opposite each other in a third direction substantially
perpendicular to the first direction and the second direction. As
shown in FIGS. 1 to 12, the header pipe 1 comprises: a first header
pipe part 11 extending in an axial direction of the header pipe 1,
the first header pipe part 11 having a first edge 111 and a second
edge 112 extending in the axial direction; and a second header pipe
part 12 extending in the axial direction of the header pipe 1, the
second header pipe part 12 having a first edge 121 and a second
edge 122 extending in the axial direction; the first edge 111 of
the first header pipe part 11 is connected to the first edge 121 of
the second header pipe part 12, and the second edge 112 of the
first header pipe part 11 is connected to the second edge 122 of
the second header pipe part 12. The first header pipe part 11 and
the second header pipe part 12 may have a semicircular shape or any
other suitable shape in cross section.
[0054] In some embodiments of the present invention, referring to
FIGS. 1, 4, 6, 9, 11 and 12, through-holes for connecting the heat
exchange tubes 5 are formed in each of the first header pipe part
11 and the second header pipe part 12. Thus, each of the first
header pipe part 11 and the second header pipe part 12 can be
connected to the heat exchange tubes 5.
[0055] In some embodiments of the present invention, referring to
FIGS. 1, 2, 11 and 12, at least one pair of adjacent edges amongst
the first edge 111 of the first header pipe part 11 and the first
edge 121 of the second header pipe part 12, and the second edge 112
of the first header pipe part 11 and the second edge 122 of the
second header pipe part 12 is provided with a flange 15, with the
adjacent edges being connected by means of the flange 15. In the
embodiments shown, each pair of adjacent edges amongst the first
edge 111 of the first header pipe part 11 and the first edge 121 of
the second header pipe part 12, and the second edge 112 of the
first header pipe part 11 and the second edge 122 of the second
header pipe part 12 is provided with a flange 15. The flange 15 may
protrude towards the outside of the header pipe 1. Optionally, the
flange 15 could also protrude towards the interior of the header
pipe 1. Adjacent flanges 15 may be provided with through-holes, in
order to locate and fix the first header pipe part 11 and the
second header pipe part 12 using locating pins, rivets or bolts,
etc. during assembly. Adjacent flanges 15 may be welded
together.
[0056] In some embodiments of the present invention, referring to
FIGS. 4 to 10, at least one pair of adjacent edges amongst the
first edge 111 of the first header pipe part 11 and the first edge
121 of the second header pipe part 12, and the second edge 112 of
the first header pipe part 11 and the second edge 122 of the second
header pipe part 12 is covered with a strip 16, the strip 16 being
connected to the at least one pair of adjacent edges. In the
embodiments shown, each pair of adjacent edges amongst the first
edge 111 of the first header pipe part 11 and the first edge 121 of
the second header pipe part 12, and the second edge 112 of the
first header pipe part 11 and the second edge 122 of the second
header pipe part 12 is covered with a strip 16, the strips 16 being
connected to two pairs of adjacent edges respectively. The strip 16
may be connected to the at least one pair of adjacent edges by
welding. The strip 16 may be disposed outside or inside the header
pipe 1.
[0057] In some embodiments of the present invention, referring to
FIGS. 1 to 10 and 12, the header pipe 1 further comprises: a
partition plate 2 extending in the axial direction, the partition
plate 2 dividing the internal cavity of the header pipe 1 into
multiple chambers. The strip 16 may be directly connected to the
partition plate 2.
[0058] In some embodiments of the present invention, referring to
FIGS. 1 to 10 and 12, the partition plate 2 has a main body 21, the
main body 21 extending in the header pipe 1 substantially in the
axial direction of the header pipe 1 and being used to divide the
internal cavity in the header pipe 1 into multiple chambers. The
header pipe 1 further comprises an end cap 3 for closing an opening
at an end of the header pipe 1. The partition plate 2 may have a
through-hole. The partition plate 2 may have a protrusion 22
projecting from an end of the main body 21; and the end cap 3 has a
main body 35, and a slot or through-hole 31 which is formed in the
main body 35 of the end cap 3 and fits the protrusion 22.
[0059] In some embodiments of the present invention, referring to
FIGS. 1 to 10 and 12, the partition plate 2 or the main body 21 of
the partition plate 2 has a first part 211, and two second parts
212 extending transversely in opposite directions from two
longitudinally extending opposite edges of the first part 211,
wherein longitudinal edges, opposite two edges of the first part
211 respectively, of the two second parts 212 are connected to an
inner wall of the header pipe 1. The two second parts 212 may be
substantially perpendicular to the first part 211. The first part
211 may pass through an axis of the header pipe 1. When viewed in
cross section, the partition plate 2 may be centrosymmetric
relative to the center of the partition plate 2.
[0060] In some embodiments of the present invention, referring to
FIGS. 6 to 8, the header pipe 1 further comprises: an individual
connecting plate 17, connected directly to the strip 16 and the
partition plate 2, or the main body 21 of the partition plate 2,
respectively. For example, the connecting plate 17 is directly
connected to the strip 16 and the first part 211 of the main body
21 of the partition plate 2 respectively. The connecting plate 17
and the first part 211 of the partition plate 2 may be
substantially in the same plane. For example, the strip 16 is
disposed outside the header pipe 1, a gap is provided between the
at least one pair of adjacent edges, and the connecting plate 17 is
connected directly, via the gap, to the strip 16 and the partition
plate 2, or the main body 21 of the partition plate 2,
respectively. The connecting plate 17 may be provided with a
through-hole 171 allowing refrigerant to pass through.
[0061] In some embodiments of the present invention, referring to
FIGS. 6 to 8, the connecting plate 17, the strip 16 and the
partition plate 2 are an integral whole, e.g. are integrally formed
by extrusion moulding.
[0062] Optionally, in some embodiments of the present invention,
the strip 16 is disposed outside the header pipe 1, a gap is
provided between the at least one pair of adjacent edges, and the
partition plate 2 is connected directly to the strip 16 via the
gap.
[0063] In some embodiments of the present invention, referring to
FIGS. 9 to 10, the at least one pair of adjacent edges covered with
the strip 16 have a substantially planar shape, i.e. have a
substantially linear shape when viewed in a cross section of the
header pipe. The strip 16 has substantially the same shape as the
corresponding first edge 111 of the first header pipe part 11 and
first edge 121 of the second header pipe part 12, and the
corresponding second edge 112 of the first header pipe part 11 and
second edge 122 of the second header pipe part 12, so as to
facilitate welding. In FIGS. 9 and 10, the first edge 111 of the
first header pipe part 11 and the first edge 121 of the second
header pipe part 12, and the second edge 112 of the first header
pipe part 11 and the second edge 122 of the second header pipe part
12 have a substantially planar shape, and the strip 16 has a
substantially planar shape. In addition, in some embodiments, the
first edge 111 of the first header pipe part 11 and the first edge
121 of the second header pipe part 12, and the second edge 112 of
the first header pipe part 11 and the second edge 122 of the second
header pipe part 12 are shaped substantially in the form of a
columnar surface or a cylindrical surface, and the strip 16 is
shaped substantially in the form of a columnar surface or a
cylindrical surface; for example, when viewed in the cross section
of the header pipe, the first edge 111 of the first header pipe
part 11 and the first edge 121 of the second header pipe part 12,
and the second edge 112 of the first header pipe part 11 and the
second edge 122 of the second header pipe part 12, and the strip 16
have the same curved shape, a substantially arcuate shape, etc.
[0064] The heat exchanger according to an embodiment of the present
invention may be used in various fields, such as the fields of air
conditioning, freezing and chilling, motor vehicles and
transportation, and may be a microchannel heat exchanger, a
parallel-flow evaporator, a heat pump or a heat pipe heat exchanger
etc.
[0065] According to an embodiment of the present invention, the
processing of multiple-chamber header pipe components is achieved
by simple processing, and the header pipe is improved by simple
processing, in order to ensure the welding quality and structural
strength of the header pipe.
[0066] According to an embodiment of the present invention, the
fitting and processing of the end cap and the partition plate are
simple, welding efficiency and quality are high, and furthermore,
the heat exchanger is structurally compact, processing is simple
and the pressure resistance effect is good.
[0067] According to an embodiment of the present invention, the
fitting and processing of components of the header pipe are simple,
welding efficiency is high, and welding quality is high. In
addition, by forming through-holes 51 in the first header pipe part
11 and the second header pipe part 12 respectively, the formation
of through-holes for heat exchange tubes in a single-piece tube
such as a round tube is avoided, so processing is simple.
[0068] In addition, the above embodiments according to the present
invention may be combined to form new embodiments.
[0069] While the present disclosure has been illustrated and
described with respect to a particular embodiment thereof, it
should be appreciated by those of ordinary skill in the art that
various modifications to this disclosure may be made without
departing from the spirit and scope of the present disclosure.
* * * * *