U.S. patent application number 13/134694 was filed with the patent office on 2012-12-20 for liquid cooled motor assembly and cover thereof.
This patent application is currently assigned to Fukuta Electric & Machinery Co., Ltd.. Invention is credited to Chi-Lung Chang, Chin-Feng Chang, Cheng-Hui Huang, Ming-Cheng Lin.
Application Number | 20120318479 13/134694 |
Document ID | / |
Family ID | 47352750 |
Filed Date | 2012-12-20 |
United States Patent
Application |
20120318479 |
Kind Code |
A1 |
Chang; Chin-Feng ; et
al. |
December 20, 2012 |
Liquid cooled motor assembly and cover thereof
Abstract
A liquid cooled motor assembly and a cover thereof The cover of
the liquid cooled motor assembly has an outer cylinder, an inner
cylinder, a channel and multiple fins. The inner cylinder is
mounted in and connected securely with the outer cylinder. The
channel is zigzag and is formed between the inner cylinder and the
outer cylinder. The fins are mounted securely on an outer surface
of the inner cylinder. With the fins mounted on the outer surface
of the inner cylinder, water can dissipate heat from the fins
quickly and a dissipating efficiency is enhanced.
Inventors: |
Chang; Chin-Feng; (Taichung
City, TW) ; Chang; Chi-Lung; (Taichung City, TW)
; Huang; Cheng-Hui; (Taichung City, TW) ; Lin;
Ming-Cheng; (Taichung City, TW) |
Assignee: |
Fukuta Electric & Machinery
Co., Ltd.
|
Family ID: |
47352750 |
Appl. No.: |
13/134694 |
Filed: |
June 14, 2011 |
Current U.S.
Class: |
165/104.19 |
Current CPC
Class: |
F28F 2220/00 20130101;
H02K 9/19 20130101; H02K 5/20 20130101; F28D 2021/0028 20130101;
H02K 5/15 20130101; F28F 1/16 20130101; F28D 7/103 20130101; F28F
13/06 20130101 |
Class at
Publication: |
165/104.19 |
International
Class: |
F28D 15/00 20060101
F28D015/00 |
Claims
1. A cover of a liquid cooled motor assembly, the cover comprising:
an outer cylinder; an inner cylinder, mounted inside the outer
cylinder and having two opposite ends; a length; an outer surface;
and multiple elongated connecting sections formed on and protruding
from the outer surface of the inner cylinder at intervals,
connected securely with the outer cylinder, each connecting section
having a length the same as that of the inner cylinder; an end; and
multiple breaches respectively formed at the ends of the connecting
sections, wherein the adjacent two of the breaches are respectively
located at the ends of the inner cylinder; a zigzag channel formed
between the outer cylinder and the inner cylinder; and multiple
fins mounted securely on the outer surface of the inner cylinder
except at the connecting sections.
2. The cover of a liquid cooled motor assembly as claimed in claim
1, wherein each connecting section is linear and extends along a
line parallel to an axis of the inner cylinder.
3. The cover of a liquid cooled motor assembly as claimed in claim
2, wherein at least two fins are located at each position between
adjacent two connecting sections; and each fin is linear and
extends along a line parallel to the axis of the inner
cylinder.
4. The cover of a liquid cooled motor assembly as claimed in claim
3, wherein the outer cylinder has an inner surface; an inlet
radially formed in the outer cylinder and communicating with the
channel; an outlet radially formed in the outer cylinder and
communicating with the channel; and a block section formed on and
protruding from the inner surface of the outer cylinder, being
beam-shaped, extending along a line parallel to the axis of the
inner cylinder, located between the inlet and the outlet and
connected securely with the outer surface of the inner cylinder
except at the connecting sections.
5. The cover of a liquid cooled motor assembly as claimed in claim
4, wherein the outer cylinder has a hanging hole radially formed in
the outer cylinder and located between the inlet and the
outlet.
6. A liquid cooled motor assembly comprising: a cover having a
first end; a second end opposite to the first end of the cover; an
outer cylinder; an inner cylinder, mounted inside the outer
cylinder and having an axial space; two opposite ends; a length; an
outer surface; and multiple elongated connecting sections formed on
and protruding from the outer surface of the inner cylinder,
connected securely with the outer cylinder, each connecting section
having a length the same as that of the inner cylinder; an end; and
a breach formed at the end of the connecting section, wherein the
adjacent two of the breaches are respectively located at the ends
of the inner cylinder; a zigzag channel formed between the outer
cylinder and the inner cylinder; and multiple fins mounted securely
on the outer surface of the inner cylinder except at the connecting
sections; a motor device mounted inside the axial space of the
inner cylinder; a first cap mounted securely on the first end of
the cover; a second cap mounted securely on the second end of the
cover, wherein the first cap and the second cap seal the channel
and the axial space of the inner cylinder; and a washer kit
connected with the cover.
7. The liquid cooled motor assembly as claimed in claim 6, wherein
each connecting section is linear and extends along a line parallel
to an axis of the inner cylinder.
8. The liquid cooled motor assembly as claimed in claim 7, wherein
at least two fins are located at each position between adjacent two
connecting sections; and each fin is linear and extends along a
line parallel to the axis of the inner cylinder.
9. The liquid cooled motor assembly as claimed in claim 8, wherein
the outer cylinder has an inner surface; an inlet radially formed
in the outer cylinder and communicating with the channel; an outlet
radially formed in the outer cylinder and communicating with the
channel; and a block section formed on and protruding from the
inner surface of the outer cylinder, being beam-shaped, extending
along a line parallel to the axis of the inner cylinder, located
between the inlet and the outlet and connected securely with the
outer surface of the inner cylinder except at the connecting
sections.
10. The liquid cooled motor assembly as claimed in claim 9, wherein
the outer cylinder has a hanging hole radially formed in the outer
cylinder and located between the inlet and the outlet.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a liquid cooled motor
assembly and a cover thereof, and more particularly to a liquid
cooled motor assembly and a cover thereof which have an enhanced
dissipating efficiency.
[0003] 2. Description of Related Art
[0004] With reference to FIGS. 8 and 9, a conventional cover of a
liquid cooled motor assembly has an outer cylinder 80 and an inner
cylinder 90. The outer cylinder 80 has an inlet 81 and an outlet
82. The inlet 81 and the outlet 82 are respectively formed in the
outer cylinder 80. The inner cylinder 90 is inserted into the outer
cylinder 80 and has an outer surface, an axial space, a guiding
section 91 and a channel 92. The axial space of the inner cylinder
90 enables a motor device to be mounted in. The guiding section 91
is spiral and is formed on and protrudes from the outer surface of
the inner cylinder 90. The channel 92 is formed between the inner
cylinder 90 and the outer cylinder 80 and communicates with the
inlet 81 and the outlet 82.
[0005] Waste heat is generated by the motor device and is conducted
to the inner cylinder 90. Water poured from the inlet 81 flows
through the channel 92, dissipates heat of the inner cylinder 90
and flows out from the outlet 82.
[0006] Although the conventional cover can dissipate waste heat, a
dissipating efficiency of the conventional cover is insufficient
and needs to be improved.
[0007] To overcome the shortcomings, the present invention tends to
provide a liquid cooled motor assembly and a cover thereof to
mitigate the aforementioned problems.
SUMMARY OF THE INVENTION
[0008] The main objective of the invention is to provide a liquid
cooled motor assembly and a cover thereof, which have an enhanced
dissipating efficiency. The cover of the liquid cooled motor
assembly has an outer cylinder, an inner cylinder, a channel and
multiple fins. The inner cylinder is mounted in and connected
securely with the outer cylinder. The channel is zigzag and is
formed between the inner cylinder and the outer cylinder. The fins
are mounted securely on an outer surface of the inner cylinder.
With the fins mounted on the outer surface of the inner cylinder,
water can dissipate heat from the fins quickly and a dissipating
efficiency is enhanced.
[0009] Other objects, advantages and novel features of the
invention will become more apparent from the following detailed
description when taken in conjunction with the accompanying
drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0010] FIG. 1 is an operational perspective view of a cover of a
liquid cooled motor assembly in accordance with the present
invention;
[0011] FIG. 2 is a front view of the cover of a liquid cooled motor
assembly in FIG. 1;
[0012] FIG. 3 is a rear view of the cover of a liquid cooled motor
assembly in FIG. 1;
[0013] FIG. 4 is a perspective view in partial section of the cover
of a liquid cooled motor assembly in FIG. 1;
[0014] FIG. 5 is a perspective view of a liquid cooled motor
assembly in accordance with the present invention;
[0015] FIG. 6 is an enlarged side view in partial section of the
liquid cooled motor assembly in FIG. 5;
[0016] FIG. 7 is a partially exploded perspective view in partial
section of the liquid cooled motor assembly in FIG. 6;
[0017] FIG. 8 is a perspective view of a conventional cover of a
liquid cooled motor assembly in accordance with the prior art;
and
[0018] FIG. 9 is a perspective view of a conventional inner
cylinder of the cover in FIG. 8.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENT
[0019] With reference to FIGS. 1 to 4, a cover of a liquid cooled
motor assembly in accordance with the present invention comprises
an outer cylinder 10, an inner cylinder 20, a channel 30 and
multiple fins 40.
[0020] The outer cylinder 10 has an inner surface, an inlet 11, an
outlet 12, a hanging hole 13 and a block section 14.
[0021] The inlet 11, the outlet 12 and the hanging hole 13 are
radially formed in the outer cylinder 10 and are located on a line
parallel to an axis of the outer cylinder 10. The hanging hole 13
is located between the inlet 11 and the outlet 12 and is threaded.
With the hanging hole 13, the cover of a liquid cooled motor
assembly in accordance with the present invention can be hung.
[0022] With further reference to FIG. 6, the block section 14 is
formed on and protrudes from the inner surface of the outer
cylinder 10, is beam-shaped, extends along a line parallel to the
axis of the outer cylinder 10, is located between the inlet 11 and
the outlet 12 and is connected securely with the inner cylinder 20.
Accordingly, the block section 14 can prevent water from flowing
directly from the inlet 11 to the outlet 12.
[0023] With reference to FIGS. 1 to 3, a diameter of the inner
cylinder 20 is smaller than that of the outer cylinder 10. The
inner cylinder 20 is mounted inside the outer cylinder 10 and has
an axial space, two opposite ends, a length, an outer surface,
multiple elongated connecting sections 21 and multiple breaches
22.
[0024] The connecting sections 21 are integrally formed on and
protrude from the outer surface of the inner cylinder 20 at
intervals and are connected securely with the outer cylinder
10.
[0025] Each connecting section 21 has a length, an end, two
opposite end surfaces and two threaded holes 211. The length of
each connecting section 21 is the same as that of the inner
cylinder 20. The threaded holes 211 are respectively formed in the
end surfaces of each connecting section 21. Each connecting section
21 is linear and extends along a line parallel to an axis of the
inner cylinder 20.
[0026] The breaches 22 are respectively formed at the ends of the
connecting sections 21 except at the threaded holes 211. The
adjacent two of the breaches 22 are respectively located at the
ends of the inner cylinder 20. The breaches 22 are located above
the threaded holes 211 relative to the axis of the inner cylinder
20. The breaches 22 may be located below the threaded holes 211
relative to the axis of the inner cylinder 20 and the present
invention does not limit the locations of the breaches 22.
[0027] Each connecting section 21 may be curved and an axial length
of each connecting section 21 is the same as that of the inner
cylinder 20. The cover of a liquid cooled motor assembly does not
limit the formats of the connecting sections 21.
[0028] With reference to FIGS. 1 to 4, the channel 30 is zigzag and
is formed between the outer cylinder 10 and the inner cylinder
20.
[0029] The fins 40 are integrally mounted securely on the outer
surface of the inner cylinder 20 except at the connecting sections
21.
[0030] Preferably, at least two fins 40 are located at each
position between adjacent two connecting sections 21. Each fin 40
is linear and extends along a line parallel to the axis of the
inner cylinder 20.
[0031] With reference to FIGS. 1 and 5, two nozzles N are
respectively and securely mounted on the inlet 11 and the outlet
12. Water is poured from the inlet 11, flows through the channel 30
and the breaches 22, dissipates heat from the fins 40 and flows out
from the outlet 12.
[0032] With reference to FIGS. 5 to 7, a liquid cooled motor
assembly in accordance with the present invention has the cover, a
first cab A, a second cab B, a washer kit C and a motor device
M.
[0033] The first cab A and the second cab B are mounted securely on
opposite ends of the cover by bolts and seal the channel 30 and the
axial space of the inner cylinder 20. The first cab A has a stand
section A1 radially formed on and protruding from the first cab
A.
[0034] The washer kit C has a first washer and a second washer. The
first washer is clamped between the first cab A and the cover. The
second washer is clamped between the second cab B and the cover.
With the washer kit C, water in the channel 30 can be prevented
from leaking out.
[0035] The motor device M is mounted in the axial space of the
inner cylinder 20 and has a shaft mounted through the second cab
B.
[0036] The cover of the liquid cooled motor assembly in accordance
with the present invention may not have the inlet 11 and the outlet
12. Instead, the nozzles N are respectively mounted on the first
cab A and the second cab B. Water can be poured into the channel 30
via the nozzles N and dissipate heat.
[0037] From the above description, it is noted that the present
invention has the following advantages:
[0038] 1. Enhanced Dissipating Efficiency:
[0039] With the fins 40 mounted on the outer surface of the inner
cylinder 20, water can dissipate heat from the fins 40 quickly and
a dissipating efficiency is enhanced.
[0040] 2. Prolonged Lifespan of the Liquid Cooled Motor
Assembly:
[0041] Because the dissipating efficiency is enhanced, the motor
device M is not overheated and a lifespan of the liquid cooled
motor assembly is prolonged. Even though numerous characteristics
and advantages of the present invention have been set forth in the
foregoing description, together with details of the structure and
function of the invention, the disclosure is illustrative only, and
changes may be made in detail, especially in matters of shape,
size, and arrangement of parts within the principles of the
invention to the full extent indicated by the broad general meaning
of the terms in which the appended claims are expressed.
* * * * *