U.S. patent application number 14/948292 was filed with the patent office on 2016-12-15 for can-type heat exchanger.
This patent application is currently assigned to HYUNDAI MOTOR COMPANY. The applicant listed for this patent is HYUNDAI MOTOR COMPANY, KBAUTOTECH CO., LTD.. Invention is credited to Jae Yeon KIM, Sangyong RHEE.
Application Number | 20160363391 14/948292 |
Document ID | / |
Family ID | 54770887 |
Filed Date | 2016-12-15 |
United States Patent
Application |
20160363391 |
Kind Code |
A1 |
KIM; Jae Yeon ; et
al. |
December 15, 2016 |
CAN-TYPE HEAT EXCHANGER
Abstract
A can-type heat exchanger may include a housing of which one
surface is opened and another surface is closed and having a space
therein, and a first inlet and a first outlet, which communicate
with the space, are provided in a lateral side thereof; a heat
radiating unit inserted into the space, provided with connecting
lines alternately formed by stacking a plurality of plates, one of
the connecting lines communicating with the space, and where the
operating fluids are heat-exchanged with each other while passing
through the respective connecting lines; and a cover cap mounted at
one opened surface of the housing so that the heat radiating unit
is integrally mounted on one surface thereof to the space, and a
second inlet and a second outlet for communicating with a second
connecting line of the connecting lines, are formed at the one
surface.
Inventors: |
KIM; Jae Yeon; (Hwaseong-si,
KR) ; RHEE; Sangyong; (Samcheok-si, KR) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
HYUNDAI MOTOR COMPANY
KBAUTOTECH CO., LTD. |
Seoul
Asan-si |
|
KR
KR |
|
|
Assignee: |
HYUNDAI MOTOR COMPANY
Seoul
KR
KBAUTOTECH CO., LTD.
Asan-si
KR
|
Family ID: |
54770887 |
Appl. No.: |
14/948292 |
Filed: |
November 21, 2015 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
F28D 9/0043 20130101;
F28F 2275/122 20130101; F28D 2021/0089 20130101; F28D 9/0037
20130101; F28F 3/044 20130101; F28D 9/0012 20130101; F28F 9/002
20130101; F28F 9/0226 20130101; F28F 2275/04 20130101; F28D 9/0006
20130101; F28F 2280/06 20130101; F28F 3/046 20130101; F28F 9/00
20130101; F28F 21/065 20130101; F28F 21/06 20130101 |
International
Class: |
F28F 9/00 20060101
F28F009/00; F28D 9/00 20060101 F28D009/00; F28F 3/04 20060101
F28F003/04; F28F 21/06 20060101 F28F021/06 |
Foreign Application Data
Date |
Code |
Application Number |
Jun 15, 2015 |
KR |
10-2015-0084260 |
Claims
1. A can-type heat exchanger comprising: a housing of which a first
surface is opened and a second surface is closed and having a space
therein, and a first inlet and a first outlet, which communicate
with the space, are provided in a lateral side thereof; a heat
radiating unit inserted into the space, provided with connecting
lines alternately formed by stacking a plurality of plates, one of
the connecting lines communicating with the space, and where the
operating fluids are heat-exchanged with each other while passing
through the respective connecting lines; and a cover cap mounted at
a first opened surface of the housing so that the heat radiating
unit integrally mounted on one surface thereof to the space, and a
second inlet and a second outlet for communicating with a second
connecting line of the connecting lines, are formed at the one
surface.
2. The can-type heat exchanger of claim 1, wherein a coupling
portion is integrally formed with an exterior circumference of the
cover cap to be bent toward the housing.
3. The can-type heat exchanger of claim 2, wherein the coupling
portion is clinching-coupled to the housing on a state that an
interior circumference thereof is surrounded by an exterior
circumference of the housing.
4. The can-type heat exchanger of claim 1, wherein a seal ring is
disposed between the housing and the cover cap.
5. The can-type heat exchanger of claim 1, wherein the first inlet
and the first outlet are formed at separate locations at a lateral
side of the housing.
6. The can-type heat exchanger of claim 1, wherein the second inlet
and the second outlet are formed at one surface of the cover cap to
be spaced apart.
7. The can-type heat exchanger of claim 1, wherein the first inlet
and the first outlet are respectively formed at a position
intersecting the second inlet and the second outlet.
8. The can-type heat exchanger of claim 1, wherein the housing is
formed with a cylinder shape through injection molding.
9. The can-type heat exchanger of claim 1, wherein the housing is
made of a plastic material.
10. The can-type heat exchanger of claim 1, wherein the plate is
formed with a disk shape, and first and second connecting holes are
formed to the plate corresponding to the second inlet and the
second outlet.
11. The can-type heat exchanger of claim 10, wherein the heat
radiating unit further comprises: a first fixing plate being
mounted to a first surface of the heat radiating unit which is
fixed to the cover cap and forming first and second penetration
holes to correspond with the first and second connecting holes; and
a second fixing plate being mounted with a second surface of the
heat radiating unit which is inserted into the space.
12. The can-type heat exchanger of claim 1, wherein the plate
comprises: a plurality of protrusions protruded from the plate to
be disposed apart to each other by a set interval; and a
distributing protrusion formed from the center of the plate to an
exterior circumference of the plate to be disposed between the
first inlet and the first outlet.
13. The can-type heat exchanger of claim 12, wherein the
protrusions are formed with a hemisphere shape, and protrude from
the plate in a same direction as the distributing protrusion.
14. The can-type heat exchanger of claim 1, wherein one of
operating fluids is a coolant flowing from a radiator, and another
one of operating fluids is transmission oil flowing from an
automatic transmission.
15. The can-type heat exchanger of claim 14, wherein the coolant
flows to the heat radiating unit through the first inlet and the
first outlet, the transmission oil flows to the heat radiating unit
through the second inlet and the second outlet, and the connecting
line comprises a first connecting line in which the coolant flows
and a second connecting line in which the transmission oil
flows.
16. The can-type heat exchanger of claim 1, wherein at least one
mounting portion is integrally formed with a second surface
circumference of the housing.
17. The can-type heat exchanger of claim 1, wherein the cover cap
is made of a metal material, and the heat radiating unit is
integrally mounted to the cover cap by brazing.
18. The can-type heat exchanger of claim 1, wherein a mounting
plate is mounted to a second surface of the cover cap and a
mounting portion is integrally formed with an exterior
circumference of the mounting plate.
Description
CROSS-REFERENCE TO RELATED APPLICATION
[0001] The present application claims priority to and the benefit
of Korean Patent Application No. 10-2015-0084260 filed on Jun. 15,
2015, the entire contents of which is incorporated herein for all
purposes by this reference.
BACKGROUND OF THE INVENTION
[0002] Field of the Invention
[0003] The present invention relates to a can-type heat exchanger.
More particularly, the present invention relates to a can-type heat
exchanger which can control temperatures of operating fluids
through heat-exchange, improve heat-exchange efficiency, and have
reduced weight and size.
[0004] Description of Related Art
[0005] Generally, a heat exchanger transfers heat from
high-temperature fluid to low-temperature fluid through a heat
transfer surface, and is used in a heater, a cooler, an evaporator,
and a condenser.
[0006] Such a heat exchanger re-uses heat energy or controls a
temperature of an operating fluid flowing therein for demanded
performance. The heat exchanger is applied to an air conditioning
system or a transmission oil cooler of a vehicle, and is mounted in
an engine compartment.
[0007] Since it is difficult to mount the heat exchanger in the
engine compartment with restricted space, studies on heat
exchangers with smaller size, lighter weight, and higher efficiency
have been developed.
[0008] A conventional heat exchanger controls the temperatures of
the operating fluids according to a condition of a vehicle and
supplies the operating fluids to an engine, a transmission, or an
air conditioning system. For this purpose, bifurcation circuits and
valves are mounted on each hydraulic line through which the
operating fluids operated as heating medium or cooling medium
passes. Therefore, constituent elements and assembling processes
are increased and layout is complicated.
[0009] If additional bifurcation circuits and valves are not used,
heat exchanging efficiency cannot be controlled according to a flow
amount of the operating fluid. Therefore, the temperature of the
operating fluid cannot be controlled efficiently.
[0010] Further, according to a conventional heat exchanger, size of
the heat exchanger should be increased in order to improve
heat-exchange efficiency. Further, additional valves for
controlling flow of operating fluids should be mounted outside,
thus constituent elements are complicated and weight and cost are
increased. Accordingly, when the heat exchanger is mounted in the
engine compartment, layout is complicated and mounting space of the
elements is not sufficient.
[0011] The information disclosed in this Background of the
Invention section is only for enhancement of understanding of the
general background of the invention and should not be taken as an
acknowledgement or any form of suggestion that this information
forms the prior art already known to a person skilled in the
art.
BRIEF SUMMARY
[0012] Various aspects of the present invention are directed to
providing a can-type heat exchanger formed with a can shape that
can control temperature of the operating fluids, improve
heat-exchange efficiency, reduce weight and size, simplify an
engine layout, and easily obtain mounting space, thus improving
installability.
[0013] Various aspects of the present invention are directed to
providing a can-type heat exchanger, including: a housing of which
one surface is opened and the other surface is closed and having a
space therein, and a first inlet and a first outlet, which
communicate with the space, are provided in a lateral side thereof;
a heat radiating unit inserted into the space, provided with
connecting lines alternately formed by stacking a plurality of
plates, one of the connecting lines communicating with the space,
and where the operating fluids are heat-exchanged with each other
while passing through the respective connecting lines; and a cover
cap mounted at one opened surface of the housing so that the heat
radiating unit integrally mounted on one surface thereof to the
space and a second inlet and a second outlet for communicating with
the other connecting line of the connecting lines, are formed at
the one surface.
[0014] A coupling portion may be integrally formed with an exterior
circumference of the cover cap to be bent toward the housing.
[0015] The coupling portion may be coupled to the housing by
clinching an exterior circumference thereof on a state that an
interior circumference thereof is surrounded by an exterior
circumference of the housing.
[0016] A seal ring is disposed between the housing and the cover
cap.
[0017] The first inlet and the first outlet may be formed at
separate locations at a lateral side of the housing.
[0018] The second inlet and the second outlet may be formed at
separate locations at one surface of the cover cap.
[0019] The first inlet and the first outlet may be respectively
formed at a position intersecting the second inlet and the second
outlet.
[0020] The housing may be formed with a cylinder shape through
injection molding.
[0021] The housing may be made of a plastic material.
[0022] The plate may be formed with a disk shape, and first and
second connecting holes may be formed to the plate corresponding to
the second inlet and the second outlet.
[0023] The heat radiating unit may further include: a first fixing
plate being mounted to one surface of the heat radiating unit which
is fixed to the cover cap and forming first and second penetration
holes to correspond with the first and second connecting holes; and
a second fixing plate being mounted with the other surface of the
heat radiating unit which is inserted into the space.
[0024] The plate may include: a plurality of protrusions protruded
from the plate to be disposed apart from each other by a set
interval; and a distributing protrusion formed from the center of
the plate to an exterior circumference of the plate to be disposed
between the first inlet and the first outlet.
[0025] The protrusion may be formed with a hemisphere shape, and
may protrude from the plate in the same direction as the
distributing protrusion.
[0026] One of operating fluids may be a coolant flowing from a
radiator, and another one of operating fluids may be transmission
oil flowing from an automatic transmission.
[0027] The coolant may flow to the heat radiating unit through the
first inlet and the first outlet, the transmission oil may flow to
the heat radiating unit through the second inlet and the second
outlet, and the connecting line may include a first connecting line
in which the coolant flows and a second connecting line in which
the transmission oil flows.
[0028] At least one mounting portion may be integrally formed with
the other surface circumference of the housing.
[0029] The cover cap may be made of a metal material, and the heat
radiating unit is integrally mounted to the cover cap by
brazing.
[0030] A mounting plate may be mounted to the other surface of the
cover cap, and a mounting portion may be integrally formed with an
exterior circumference of the mounting plate.
[0031] According to the present invention, the can-type heat
exchanger can control the temperature of the operating fluids and
is formed with a can shape that can improve efficiency of heat
exchange and reduce weight and size, and it is thereby possible to
simplify an engine layout.
[0032] Further, it may be easy to obtain a mounting space and
thereby installability may be improved.
[0033] In addition, manufacturing and assembly working may be
simple, manufacturing cost may be reduced, and productivity may be
improved as the cover cap to which the heat radiating unit is
integrally mounted is coupled with the housing which is
manufactured by injection molding.
[0034] Furthermore, a defective completed product may not be
produced such that productivity is improved by checking whether a
defective heat radiating unit is produced before the cover cap is
assembled therewith.
[0035] The methods and apparatuses of the present invention have
other features and advantages which will be apparent from or are
set forth in more detail in the accompanying drawings, which are
incorporated herein, and the following Detailed Description, which
together serve to explain certain principles of the present
invention.
BRIEF DESCRIPTION OF THE DRAWINGS
[0036] FIG. 1 is a schematic diagram of a cooling system of an
automatic transmission to which a can-type heat exchanger according
to an exemplary embodiment of the present invention is applied.
[0037] FIG. 2 is a perspective view of a can-type heat exchanger
according to an exemplary embodiment of the present invention.
[0038] FIG. 3 is an exploded perspective view of a can-type heat
exchanger according to an exemplary embodiment of the present
invention.
[0039] FIG. 4 is a cross-sectional view taken along the line A-A of
FIG. 2.
[0040] FIG. 5 is a cross-sectional view taken along the line B-B of
FIG. 2.
[0041] FIG. 6 is an exploded perspective view of a heat radiating
unit applied to a can-type heat exchanger according to an exemplary
embodiment of the present invention.
[0042] FIG. 7 is a perspective view of a plate of a heat
dissipation unit applied to a can-type heat exchanger according to
an exemplary embodiment of the present invention.
[0043] FIG. 8 is a drawing for describing operation of a can-type
heat exchanger according to an exemplary embodiment of the present
invention.
[0044] FIG. 9 is a perspective view of a can-type heat exchanger
according to another exemplary embodiment of the present
invention.
[0045] It should be understood that the appended drawings are not
necessarily to scale, presenting a somewhat simplified
representation of various features illustrative of the basic
principles of the invention. The specific design features of the
present invention as disclosed herein, including, for example,
specific dimensions, orientations, locations, and shapes will be
determined in part by the particular intended application and use
environment.
[0046] In the figures, reference numbers refer to the same or
equivalent parts of the present invention throughout the several
figures of the drawing.
DETAILED DESCRIPTION
[0047] Reference will now be made in detail to various embodiments
of the present invention(s), examples of which are illustrated in
the accompanying drawings and described below. While the
invention(s) will be described in conjunction with exemplary
embodiments, it will be understood that the present description is
not intended to limit the invention(s) to those exemplary
embodiments. On the contrary, the invention(s) is/are intended to
cover not only the exemplary embodiments, but also various
alternatives, modifications, equivalents and other embodiments,
which may be included within the spirit and scope of the invention
as defined by the appended claims.
[0048] An exemplary embodiment of the present invention will
hereinafter be described in detail with reference to the
accompanying drawings.
[0049] First, since the exemplary embodiment described in the
specification and the configurations shown in the drawings are
merely the most preferable exemplary embodiment and configurations
of the present invention, they do not represent all of the
technical ideas of the present invention, and it should be
understood that that various equivalents and modified examples,
which may replace the exemplary embodiments, are possible when
filing the present application.
[0050] In order to clearly describe the present invention, parts
that are irrelevant to the description are omitted, and identical
or similar constituent elements throughout the specification are
denoted by the same reference numerals.
[0051] Since the size and thickness of each configuration shown in
the drawings are arbitrarily shown for convenience of description,
the present invention is not necessarily limited to configurations
illustrated in the drawings, and in order to clearly illustrate
several parts and areas, enlarged thicknesses are shown.
[0052] Moreover, throughout the specification, unless explicitly
described to the contrary, the word "comprise" and variations such
as "comprises" or "comprising" will be understood to imply the
inclusion of stated elements but not the exclusion of any other
elements.
[0053] Furthermore, terms such as " . . . unit", " . . . means", "
. . . part", and " . . . member" described in the specification
mean a unit of a comprehensive configuration having at least one
function or operation.
[0054] FIG. 1 is a schematic diagram of a cooling system of an
automatic transmission to which a can-type heat exchanger according
to an exemplary embodiment of the present invention is applied.
[0055] Referring to FIG. 1, a can-type heat exchanger 100 according
to an exemplary embodiment of the present invention applies to a
cooling system of an automatic transmission.
[0056] As shown in FIG. 1, the cooling system of the automatic
transmission is provided with a cooling line for cooling an engine.
A coolant passes through a radiator 20 having a cooling fan 41
through a water pump 10 and is cooled by the radiator 20. A heater
core 30 connected to a heating system of the vehicle is mounted at
the cooling line.
[0057] Here, the can-type heat exchanger 100 according to an
exemplary embodiment of the present invention can control
temperatures of operating fluids which flow inside of the can-type
heat exchanger 100, through heat-exchange.
[0058] The can-type heat exchanger 100 according to an exemplary
embodiment of the present invention is disposed between the water
pump 10 and the heater core 30, and is connected to an automatic
transmission 40 through an oil line (hereinafter "O.L")
[0059] In the exemplary embodiment of the present, the operating
fluids include a coolant flowing from the radiator 20 and
transmission oil flowing from the automatic transmission 40. The
can-type heat exchanger 100 causes the transmission oil to exchange
heat with the coolant such that a temperatures of the transmission
oil is controlled.
[0060] FIG. 2 and FIG. 3 are a perspective view and an exploded
perspective view of the can-type heat exchanger according to an
exemplary embodiment of the present invention, respectively.
[0061] As shown in FIG. 2 and FIG. 3, the can-type heat exchanger
100 may include a housing 101, a heat radiating unit 110, and a
cover cap 130.
[0062] The housing 101 of which one surface is opened and the other
surface is closed has a space S therein. A first inlet 103 and a
first outlet 105, which communicate with to the space S, are
provided in a lateral side of the housing 101.
[0063] Here, the housing 101 may be formed with a cylinder shape
through injection molding.
[0064] Meanwhile, the housing 101 may be formed with a polygon
shape including a cylinder shape.
[0065] The housing 101 is made of a plastic material.
[0066] Further, at least one mounting portion 107 may be formed
with the other surface circumference of the housing 101.
[0067] The mounting portion 107 is for mounting the can-type heat
exchanger 100 inside an engine compartment, and in the present
exemplary embodiment, three mounting portions 107 are formed at
positions spaced apart from each other around an exterior
circumference of the housing 101 at a set angle.
[0068] In the present exemplary embodiment, the three mounting
portions 107 are formed at positions spaced apart from each other
around an exterior circumference of the housing 101 at a set angle
are described as an exemplary embodiment, but the present invention
is not limited thereto, and the size, the number, and the positions
of the mounting portion 107 can be modified and applied.
[0069] Meanwhile, the first inlet 103 and the first outlet 105 may
be formed at separate locations at a lateral side exterior
circumference of the housing 101.
[0070] FIG. 4 is a cross-sectional view taken along the line A-A of
FIG. 2, FIG. 5 is a cross-sectional view taken along the line B-B
of FIG. 2, FIG. 6 is an exploded perspective view of a heat
radiating unit applied to a can-type heat exchanger according to an
exemplary embodiment of the present invention, and FIG. 7 is a
perspective view of a plate of a heat dissipation unit applied to a
can-type heat exchanger according to an exemplary embodiment of the
present invention.
[0071] As shown in FIG. 3 to FIG. 6, in the present exemplary
embodiment, the heat radiating unit 110 is inserted into the space
S and is provided with connecting lines 113 alternately formed by
stacking a plurality of plates 111.
[0072] One connecting 113 line of the connecting lines 113
communicates with the space S, and the operating fluids are
heat-exchanged with each other while passing through the respective
connecting lines 113.
[0073] The cover cap 130 is mounted at one opened surface of the
housing 101 so that the heat radiating unit 110 is integrally
mounted on one surface thereof to the space S.
[0074] A second inlet 131 and a second outlet 133 for communicating
with the other connecting line 113 of the connecting lines 113 are
formed at the one surface of the cover cap 130.
[0075] Here, the cover cap 130 is made of a metal material, and the
heat radiating unit 110 is integrally mounted to the cover cap 130
by brazing.
[0076] That is, the heat radiating unit 110 is assembled with the
cover cap 130 before the cover cap 130 is mounted to the housing
101.
[0077] Accordingly, the heat radiating unit 110 may be prevented
from having operating defects by pre-inspecting leakage of
operating fluids inflowed from the connecting line 113, which
communicates with the second inlet 131 and the second outlet
133.
[0078] Meanwhile, the second inlet 131 and the second outlet 133
may be formed at one surface of the cover cap 130 to be spaced
apart.
[0079] That is, the second inlet 131 and the second outlet 133 are
respectively formed at a position intersecting the first inlet 103
and the first outlet 105.
[0080] Accordingly, the coolant may flow into the space S and the
heat radiating unit 110 through the first inlet 103 and the first
outlet 105. The transmission oil flows into the heat radiating unit
110 through the second inlet 131 and the second outlet 133.
[0081] Here, the cover cap 130 includes a coupling portion 135. One
end of the coupling portion 135 is integrally formed with an
exterior circumference of the cover cap 130, and the other of the
coupling portion 135 is bent toward the housing 101.
[0082] The coupling portion 135 is coupled to the housing 101 by
clinching an exterior circumference thereof on a state that an
interior circumference thereof is surrounded by an exterior
circumference of the housing 101.
[0083] That is, the cover cap 130 is strongly connected to the
housing 101 by repeatedly clinching an exterior circumference of
the coupling portion 135.
[0084] In the present exemplary embodiment, a seal ring 140 may be
disposed between the housing 101 and the cover cap 130.
[0085] The seal ring 140 seals between the space S and the cover
cap 130 to prevent the coolant flowing into the space S from
leaking to the outside of the housing 101.
[0086] Meanwhile, one connecting line 113 of the connecting lines
113 communicates with the space S, and the coolant and the
transmission oil supplied from the first and second inlets 103 and
131 are heat-exchanged with each other in the heat radiating unit
110 while passing through the respective connecting lines 113.
[0087] That is, when the transmission oil flows from the second
inlet 131 and circulates in the heat radiating unit 110, the
transmission oil and the coolant flowing into the space S of the
housing 101 through the first inlet 103 flow in opposite directions
to each other by counterflow of the transmission oil and the
coolant.
[0088] Here, the connecting line 113 may include a first connecting
line 113a through which the coolant flows into the space S, and a
second connecting line 113b in which the transmission oil
flows.
[0089] In the present exemplary embodiment, the plate 111 may be
formed with a disk shape corresponding to the housing 101, and
first and second connecting holes 115 and 117 are formed to the
plate 111 corresponding to the second inlet 131 and the second
outlet 133.
[0090] The transmission oil flowing from the second inlet 131 flows
into the heat radiating unit 110 through the first connecting hole
115, passes through the second connecting line 113b, and exhausts
to the second outlet 133 through the second connecting hole
117.
[0091] Meanwhile, as shown in FIG. 7, the plate 111 may include a
plurality of protrusions 118 and a distributing protrusion 119. The
plurality of protrusions 118 are protruded from the plate 111 to be
disposed apart from each other by a set interval. The distributing
protrusion 119 is formed from the center of the plate 111 to an
exterior circumference of the plate 111 to be disposed between the
first inlet 103 and the first outlet 105.
[0092] Each of the protrusions 118 may be formed with a
hemispherical shape, may protrude from the plate 111 in the same
direction as the distributing protrusion 119, and may be formed in
plural from the center of the plate 111 to the exterior
circumference in a circumference direction.
[0093] When the plates 111 are stacked, the protruded parts of the
protrusion 118 and the distributing protrusion 119 are connected
with each other.
[0094] Since two assembled plates 111 of which each protrusion 118
contacts each distributing protrusion 119 are stacked in plural,
the first connecting line 113a and the second connecting line 113b
are alternately formed.
[0095] Here, the protrusion 118 generates flow resistance to the
coolant passing through the first connecting line 113a of the heat
radiating unit 110 and the transmission oil passing through the
second connecting line 113b, such that heat exchange efficiency is
improved.
[0096] Further, the distributing protrusion 119 evenly distributes
flow of each operating fluid in order to increase a flow distance
of the transmission oil and the coolant flow passing through the
first and second connecting lines 113a and 113b, such that each
operating fluid evenly flows by the entire region of the plate 111
of the heat radiating unit 110.
[0097] The heat radiating unit 110 includes first and second fixing
plates 121 and 127.
[0098] The first fixing plate 121 is mounted to one surface of the
heat radiating unit 110 which is fixed to the cover cap 130 and has
first and second penetration holes 123 and 125 which are formed to
correspond with the first and second connecting holes 115 and
117.
[0099] The second fixing plate 127 is mounted with the other
surface of the heat radiating unit 110 which is inserted into the
space.
[0100] Here, the second fixing plate 127 prevents a leakage of the
transmission oil inflowed through the first and second connecting
holes 115 and 117 by closing the first and second connecting holes
115 and 117 formed at the plate 111 on the other surface of the
heat radiating unit 110.
[0101] Meanwhile, in the present exemplary embodiment, the coolant
flows in and is exhausted through the first inlet 103 and the first
outlet 105, respectively, and flows in the first connecting line
113a at an inside of the space S. The transmission oil flows in the
second connecting line 113b through the second inlet 131. However,
flow of the coolant and the transmission oil may be changed.
[0102] Hereinafter, functions and operations of the can-type heat
exchanger 100 according to an exemplary embodiment of the present
invention will be described.
[0103] FIG. 8 is a drawing for describing operation of a can-type
heat exchanger according to an exemplary embodiment of the present
invention.
[0104] As shown in FIG. 8, the coolant flowing through the first
inlet 103 flows in the space S, passes through the outside of the
heat radiating unit 110 and the first connecting line 113a, and is
exhausted through the first outlet 105.
[0105] The coolant passes through the first connecting lines 113a
from the space S, and the transmission oil flows by the second
inlet 131, passing through the second connecting lines 113b.
Accordingly, the transmission oil is heat-exchanged with the
coolant at the space S of the housing 101, and the temperature of
the transmission oil is adjusted.
[0106] Here, the transmission oil flows from the automatic
transmission 40 through the second inlet 131. The flowed
transmission oil passes through the second connecting line 113b of
the heat radiating unit 110 in the space S and then is exhausted
through the second outlet 133, such that the transmission oil is
heat-exchanged with the coolant.
[0107] In this case, the transmission oil and the coolant having
flowed into the first and second inlets 103 and 131 are
heat-exchanged with each other by counterflow as the first and
second inlets 103 and 131 are respectively formed at positions
intersecting each other at a lateral side of the housing 101 and
one surface of the cover cap 130 such that they may be more
efficiently heat-exchanged with each other.
[0108] Therefore, the transmission oil, the temperature of which is
raised by operation of the automatic transmission 40, is cooled
through heat exchange with the coolant in the heat radiating unit
110 of the can-type heat exchanger 100 and is then supplied to the
automatic transmission 40.
[0109] That is, since the can-type heat exchanger 100 supplies the
cooled transmission oil to the automatic transmission 40 rotating
at a high speed, occurrence of slip in the automatic transmission
40 is prevented.
[0110] In an exemplary embodiment of the present invention, the
can-type heat exchanger 100 controls the temperature of the
transmission oil such that the coolant and the transmission oil
having flowed into the first and second inlets 103 and 131 are
heat-exchanged with each other.
[0111] Meanwhile, components of a can-type heat exchanger 200
according to another exemplary embodiment of the present invention,
configured as above, will be described below referring to the
accompanying FIG. 9.
[0112] FIG. 9 is a perspective view of a can-type heat exchanger
according to another exemplary embodiment of the present
invention.
[0113] Referring to FIG. 9, the can-type heat exchanger 200
according to another exemplary embodiment of the present invention
includes a housing 201, a heat radiating unit 210, and a cover cap
230.
[0114] Here, the housing 201 includes a first inlet 203 and a first
outlet 205. The cover cap 230 includes a second inlet 231 and a
second outlet 233.
[0115] The cover cap 230 includes a coupling portion 235, as
described above, and is the same as that of the first exemplary
embodiment of the present invention and therefore a detailed
description thereof will be omitted.
[0116] In another exemplary embodiment of the present invention, a
mounting plate 250 may be mounted to the other surface of the cover
cap 230, and a mounting portion 251 may be integrally formed with
an exterior circumference of the mounting plate 250.
[0117] Accordingly, in another exemplary embodiment of the present
invention, the can-type heat exchanger 200 may be directly mounted
to one side of the automatic transmission 40 through the mounting
plate 250.
[0118] That is, in another exemplary embodiment of the present
invention, the can-type heat exchanger 200 is mounted to one side
of the automatic transmission 40 through the mounting portion 251
of the mounting plate 250 mounted to the cover cap 230, thereby
eliminating connecting pipes for supplying or exhausting the
transmission oil.
[0119] According to an exemplary embodiment of the present
invention, the can-type heat exchanger 100 and 200 can control the
temperature of the operating fluids and is formed with a can shape
that can improve efficiency of heat exchange and reduce weight and
size, so it is possible to simplify an engine layout.
[0120] Further, it may be easy to obtain a mounting space and
thereby installability may be improved.
[0121] Further, manufacturing and assembly work may be simple,
manufacturing cost may be reduced, and productivity may be improved
as the cover cap 130 (and 230) to which the heat radiating unit 110
(and 210) is integrally mounted is coupled with the housing 101
(and 201) which is manufactured by injection molding.
[0122] Furthermore, the defective complete product may not be
produced such that productivity is improved by checking whether a
defective heat radiating unit 110 (and 210) is produced before the
cover cap 130 (and 230) is assembled therewith.
[0123] For convenience in explanation and accurate definition in
the appended claims, the terms "upper", "lower", "inner" and
"outer" are used to describe features of the exemplary embodiments
with reference to the positions of such features as displayed in
the figures.
[0124] The foregoing descriptions of specific exemplary embodiments
of the present invention have been presented for purposes of
illustration and description. They are not intended to be
exhaustive or to limit the invention to the precise forms
disclosed, and obviously many modifications and variations are
possible in light of the above teachings. The exemplary embodiments
were chosen and described in order to explain certain principles of
the invention and their practical application, to thereby enable
others skilled in the art to make and utilize various exemplary
embodiments of the present invention, as well as various
alternatives and modifications thereof. It is intended that the
scope of the invention be defined by the Claims appended hereto and
their equivalents.
* * * * *