CN208460748U - Liquid-cooling heat radiator and electric machine controller - Google Patents
Liquid-cooling heat radiator and electric machine controller Download PDFInfo
- Publication number
- CN208460748U CN208460748U CN201821175994.0U CN201821175994U CN208460748U CN 208460748 U CN208460748 U CN 208460748U CN 201821175994 U CN201821175994 U CN 201821175994U CN 208460748 U CN208460748 U CN 208460748U
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- liquid
- cooling
- liquid collecting
- heat radiator
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
- H01L23/367—Cooling facilitated by shape of device
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
- H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
- H01L23/473—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing liquids
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model provides a kind of liquid-cooling heat radiator and electric machine controller, and the liquid-cooling heat radiation plate includes the first liquid collecting portion, the second liquid collecting portion and multiple liquid cooling plates；The multiple liquid cooling plate interval setting, and one of surface of each liquid cooling plate constitutes power module mounting surface；There is cooling passage in each liquid cooling plate, there is the first liquid collecting cavity in first liquid collecting portion, there is the second liquid collecting cavity, and first liquid collecting cavity is connected to via the cooling passage in the multiple liquid cooling plate with second liquid collecting cavity in second liquid collecting portion.The utility model radiates to power module by multiple independent liquid cooling plates, and the radiating efficiency of power module can be greatly improved, while improving the even temperature effect of heat dissipation.
Description
Technical field
The utility model relates to controller field of radiating, more specifically to a kind of liquid-cooling heat radiator and motor control
Device processed.
Background technique
As a kind of heat dissipation technology of maturation, liquid-cooling heat radiation mode is all widely used in Industrial routes all the time, such as
Motor, controller etc..Since the radiating rate of liquid is far longer than air, liquid cooling heat radiator radiating efficiency is much larger than air-cooled
Radiator, while can also be well controlled in terms of noise.
In electric machine controller, multiple power modules are usually arranged in the surface of heat sink with tile mode, heat is logical
It crosses heat sink and is transferred to coolant liquid, take away heat eventually by heat convection.In addition, to improve power density, as shown in Figure 1,
Multiple power modules can be also arranged in 11 two sides of heat sink in a manner of erectting, heat is transferred to coolant liquid by heat sink 11,
Heat is taken away eventually by heat convection.
However, there is cooling in the multimode radiator structure of above-mentioned either flush system installation or erect-type installation
When liquid accumulated temperature causes the module of front-rear position to there are problems that the temperature difference, especially high power, low discharge, not samming caused by accumulated temperature
Phenomenon is particularly evident.
As shown in Fig. 2, for spur type fin schematic diagram in current common heat sink, in this configuration, the function of heat sink 21
The back side of rate module mounting surface is provided with multiple radiating fins 22, and passes through plate fin structure auxiliary heat dissipation.As shown in figure 3, to mention
High heat exchange efficiency can use pin-type fins (pinfin) 32 at the back side of the power module mounting surface of heat sink 31, and pass through spy
Different pin-type fins structure enhances flow-disturbing, promotes heat convection effect.
But the structure heat-sinking capability of above-mentioned radiating fin part is generally weaker, and when module power density increases, pole has can
Higher temperature rise can be generated, power module overheat is eventually led to.Such as Fig. 4, (used for above-mentioned more erect-type radiators of power module
Spur type fin) heat analysis schematic diagram, when power module works normally, the minimum power module of temperature is on the radiator
108.1 DEG C and the highest power module of temperature are 125.9 DEG C, 17.8 DEG C of the temperature difference between power module.As shown in fig. 6, even if
Change pin-type fins in radiator into, the minimum power module of temperature is 105.9 DEG C, the highest power module of temperature is 116.2
DEG C, i.e., the temperature difference between power module still has 10.3 DEG C.
Utility model content
The technical problem to be solved by the present invention is to and heat-sinking capabilities uneven for the heat dissipation of above-mentioned liquid cooling heat radiator
Weaker problem provides a kind of new liquid-cooling heat radiator and electric machine controller.
The technical solution that the utility model solves above-mentioned technical problem is to provide a kind of liquid-cooling heat radiator, including first
Liquid collecting portion, the second liquid collecting portion and multiple liquid cooling plates；The multiple liquid cooling plate interval setting, and each liquid cooling plate is wherein
One surface constitutes power module mounting surface；There is cooling passage in each liquid cooling plate, have in first liquid collecting portion
There is the first liquid collecting cavity, there is the second liquid collecting cavity in second liquid collecting portion, and first liquid collecting cavity is via the multiple liquid cooling
Cooling passage in plate is connected to second liquid collecting cavity.
In liquid-cooling heat radiator described in the utility model, has in each liquid cooling plate and be stacked the first-class of setting
Road and second flow channel, the first runner is connected to second flow channel constitutes the cooling passage, and in the first runner
The flow direction of coolant liquid is opposite with the flow direction of coolant liquid in the second flow channel.
In liquid-cooling heat radiator described in the utility model, the first runner is set close to the power module mounting surface
It sets, the second flow channel is arranged far from the power module mounting surface.
In liquid-cooling heat radiator described in the utility model, there is arced flow path, and described in each liquid cooling plate
First runner is connected to second flow channel by the arced flow path.
In liquid-cooling heat radiator described in the utility model, first liquid collecting portion has coolant inlet, and described
First liquid collecting cavity is connected with the coolant inlet；Second liquid collecting portion has cooling liquid outlet, and second liquid collecting cavity
It is connected with cooling liquid outlet；The outlet of the first runner is connected to second liquid collecting cavity, the entrance of the second flow channel with
The first liquid collecting cavity connection, the outlet of the second flow channel is connected to the entrance of the first runner.
In liquid-cooling heat radiator described in the utility model, the multiple liquid cooling plate is arranged in parallel, and first collection
Liquid portion and second liquid collecting portion are located at the same end of the liquid cooling plate.
In liquid-cooling heat radiator described in the utility model, the liquid-cooling heat radiator includes two liquid cooling plates, and institute
State the lateral surface that the power module mounting surface on two liquid cooling plates is located at described two liquid cooling plates.
In liquid-cooling heat radiator described in the utility model, the first runner includes multiple independent first subflows
Road, the second flow channel includes multiple independent second subflow roads, and each first subflow road is corresponding with one respectively
The connection of second subflow road.
In liquid-cooling heat radiator described in the utility model, the multiple first subflow road edge is parallel to the power mould
The direction of block mounting surface arranges, and the coolant liquid in the multiple first subflow road flow to it is identical；The multiple second subflow
Road is along the direction arrangement for being parallel to the power module mounting surface, and coolant liquid in the multiple second subflow road flows to phase
Together.
The utility model also provides a kind of electric machine controller, including multiple power modules and liquid-cooling heat radiation as described above
Device, and the multiple power module passes through the power module mounting surface that insulating heat-conductive plate is fixed on the liquid cooling plate respectively.
The liquid-cooling heat radiator and electric machine controller of the utility model, by multiple independent liquid cooling plates to power module into
Row heat dissipation, can be greatly improved the radiating efficiency of power module, while improving the even temperature effect of heat dissipation.
Detailed description of the invention
Fig. 1 is the schematic diagram of the existing erect-type radiator of more power modules；
Fig. 2 is the structural schematic diagram of spur type fin in existing radiator；
Fig. 3 is the structural schematic diagram of pin-type fins in existing radiator；
Fig. 4 is the heat analysis schematic diagram of the existing erect-type radiator of more power modules using spur type fin；
Fig. 5 is the heat analysis schematic diagram of the existing erect-type radiator of more power modules using pin-type fins；
Fig. 6 is the schematic diagram of the utility model liquid-cooling heat radiator embodiment；
Fig. 7 is the top view of the utility model liquid-cooling heat radiator embodiment；
Fig. 8 is the structural schematic diagram of liquid cooling plate section in the utility model liquid cooling heat radiator embodiment；
Fig. 9 is the heat analysis schematic diagram of the utility model liquid-cooling heat radiator embodiment.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in fig. 6, being the schematic diagram of the utility model liquid-cooling heat radiator embodiment, which can be applied
It radiates in electric machine controller, and for power module (such as semiconductor switch pipe in inverter).Liquid cooling in the present embodiment dissipates
Thermal includes that the first liquid collecting portion 63, the second liquid collecting portion 64 and two liquid cooling plates 61 (in practical applications, can also have more
Liquid cooling plate 61), and the interval of above-mentioned two liquid cooling plate 61 setting (i.e. there is certain distance between two liquid cooling plates 61).Each liquid cooling
Plate 61 is generally flat (strip or plate), and one of surface of each liquid cooling plate 61 constitutes power module mounting surface,
Multiple power modules 7 can be attached on each power module mounting surface.There is cooling passage, the first liquid collecting in each liquid cooling plate 61
There is the first liquid collecting cavity in portion 63, there is the second liquid collecting cavity, and the cooling passage of each liquid cooling plate 61 in the second liquid collecting portion 64
It is connected to respectively with the first liquid collecting cavity and the second liquid collecting cavity.
State in use liquid-cooling heat radiator be power module 7 radiate when, power module 7 can be consolidated by insulating heat-conductive plate
Fixed (such as welding, crimping etc.) arrives the power module mounting surface of liquid cooling plate 61, and the first liquid collecting cavity and the second liquid collecting cavity are accessed
External coolant circulation passage flows into external coolant liquid from the first liquid collecting cavity, and above-mentioned coolant liquid flows through two coldplates 61
Enter the second liquid collecting cavity after interior cooling passage, and external coolant circulation passage is returned to by the second liquid collecting cavity.
Above-mentioned liquid-cooling heat radiator is by two independent liquid cooling plates 61, to multiple power modules 7 (such as shown in fig. 68
It is a) it radiates, the radiating efficiency of power module 7 can be greatly improved, while improving the even temperature effect of heat dissipation.
Preferably, in conjunction with Fig. 8, above-mentioned each liquid cooling plate 61 is interior to have the first runner 611 and second for being stacked setting
Road 612, and above-mentioned first runner 611 is connected to second flow channel 612 and constitutes cooling passage, and cooling in first runner 611
The flow direction of liquid is opposite with the flow direction of coolant liquid in second flow channel 612.By above structure, so that on each power module mounting surface
Multiple power modules 7 carried out from two plumes to opposite coolant liquid it is directly cooling or indirectly cooling, to substantially increase
The even temperature effect of each power module 7.
Particularly, in each liquid cooling plate, first runner 611 and second flow channel 612 are pressed perpendicular to power module mounting surface
Mode be arranged, and first runner 611 is close to power module mounting surface is arranged, second flow channel is set far from power module mounting surface
It sets, as shown in Figure 7 (the i.e. side that is located at the power module mounting surface of liquid cooling plate 61 of first runner 611, the then position of second flow channel 612
In the opposite side of power module mounting surface).Coolant liquid in first runner 611 can with the coolant liquid in second flow channel 612 into
Row heat exchange, to reach samming.
Also, to guarantee flowing velocity of the coolant liquid in first runner 611 and second flow channel 612, above-mentioned liquid cooling plate 61
It is interior that there is arced flow path, and first runner 611 is connected to second flow channel 612 by arced flow path.
Settable coolant inlet in above-mentioned first liquid collecting portion 63, and the first liquid collecting cavity and cooling in the first liquid collecting portion 63
Liquid entrance is connected；Settable cooling liquid outlet in second liquid collecting portion 64, and the second liquid collecting cavity in the second liquid collecting portion 64 with it is cold
But liquid outlet is connected；The outlet of first runner is connected to the second liquid collecting cavity, and the entrance of second flow channel is connected to the first liquid collecting cavity, the
The outlet of two runners is connected to the entrance of first runner.It is located at first by the above-mentioned means, can be formed in liquid-cooling heat radiator
Internal coolant circulatory flow between the coolant inlet in liquid collecting portion 63 and the cooling liquid outlet in the second liquid collecting portion 64, from cooling
Liquid entrance flow into coolant liquid followed by the first liquid collecting cavity, second flow channel 612, first runner 611 and the second liquid collecting cavity, and
It is flowed out from cooling liquid outlet.
During coolant flow, the coolant temperature in second flow channel 612 is lower, can absorb first runner 611
The heat of interior coolant liquid, and more (the first liquid collecting cavities of distance more nearby of the heat that the first liquid collecting cavity of distance more closely partially absorbs
Coolant temperature in two runners is lower)；Coolant liquid in first runner 611 then can absorb the power on power module mounting surface
The heat of module 7.Specifically, when power module 7 works, for the liquid cooling plate 61 being located above in Fig. 7, due to power module
7 fever, the coolant temperature in first runner 611 gradually rise from left to right, the coolant temperature in second flow channel 612 from
The right side, which is turned left, to be gradually risen, cold fluid and hot fluid cross flow one samming in first runner 611 and second flow channel 612.
As shown in figure 8, radiating efficiency is improved to reduce the convection current in first runner 611 and second flow channel 612, it is first-class
Road 611 may include multiple independent first subflow roads, and similarly, second flow channel 612 may include multiple independent second subflow roads,
And every one first subflow road the second subflow road connection corresponding with one respectively.And above-mentioned multiple first subflows road edge is parallel to
The direction of power module mounting surface arranges, and the coolant liquid in multiple first subflows road flow to it is identical；Multiple second subflows road
Along be parallel to power module mounting surface direction arrangement, and the coolant liquid in multiple second subflows road flow to it is identical.
As shown in figure 9, for under Fig. 4,5 the same terms (loss, cooling parameter, power module quantity), the present embodiment
The heat analysis result of liquid-cooling heat radiator.It can be seen that the minimum power module of temperature is 107.4 DEG C, the highest function of temperature
Rate module is 111.4 DEG C, and temperature rise of hot spot reduces by 14.5 DEG C compared to the erect-type radiator of more power modules of spur type fin, is compared
The erect-type radiator of more power modules of pin-type fins reduces by 4.8 DEG C, and the temperature difference between power module 7 only has 4 DEG C.
In above-mentioned liquid-cooling heat radiator, two liquid cooling plates 61 can be arranged in parallel, and the first liquid collecting portion 63 and the second liquid collecting
Portion 64 is located at the same end of liquid cooling plate 61.The structure, which facilitates, is installed to electric machine controller for liquid cooling heat radiator, and convenient for its with it is outer
The connection of portion's coolant line.
Power module mounting surface difference for the integral heat sink efficiency for improving liquid cooling heat radiator, on above-mentioned two liquid cooling plate 61
Positioned at the lateral surface of two liquid cooling plates 61, as shown in Figure 7.The structure is not only conducive to radiate, and is also convenient for the installation of power module 7
(such as being connect with external coolant circulation system).
The utility model also provides a kind of electric machine controller, which controls motor by changing power frequency
Revolving speed.The electric machine controller includes multiple power modules and liquid-cooling heat radiator as described above, and multiple power modules divide
(such as welding) is not fixed in the power module mounting surface of liquid cooling plate by insulating heat-conductive plate.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should
It is subject to the protection scope in claims.
Claims (10)
1. a kind of liquid-cooling heat radiator, which is characterized in that including the first liquid collecting portion, the second liquid collecting portion and multiple liquid cooling plates；Institute
Multiple liquid cooling plate interval settings are stated, and one of surface of each liquid cooling plate constitutes power module mounting surface；Each institute
Stating has cooling passage in liquid cooling plate, have the first liquid collecting cavity in first liquid collecting portion, second liquid collecting has in portion
Second liquid collecting cavity, and first liquid collecting cavity connects via the cooling passage in the multiple liquid cooling plate with second liquid collecting cavity
It is logical.
2. liquid-cooling heat radiator according to claim 1, which is characterized in that have in each liquid cooling plate and be stacked setting
First runner and second flow channel, the first runner is connected to second flow channel constitutes the cooling passage, and described the
The flow direction of coolant liquid is opposite with the flow direction of coolant liquid in the second flow channel in one runner.
3. liquid-cooling heat radiator according to claim 2, which is characterized in that the first runner is close to the power module
Mounting surface setting, the second flow channel are arranged far from the power module mounting surface.
4. liquid-cooling heat radiator according to claim 3, which is characterized in that have arc stream in each liquid cooling plate
Road, and the first runner is connected to second flow channel by the arced flow path.
5. liquid-cooling heat radiator according to claim 3, which is characterized in that first liquid collecting portion enters with coolant liquid
Mouthful, and first liquid collecting cavity is connected with the coolant inlet；Second liquid collecting portion has cooling liquid outlet, and described the
Two liquid collecting cavities are connected with the cooling liquid outlet；The outlet of the first runner is connected to second liquid collecting cavity, and described second
The entrance of runner is connected to first liquid collecting cavity, and the outlet of the second flow channel is connected to the entrance of the first runner.
6. liquid-cooling heat radiator according to claim 5, which is characterized in that the multiple liquid cooling plate is arranged in parallel, and institute
It states the first liquid collecting portion and second liquid collecting portion and is located at the same end of the liquid cooling plate.
7. liquid-cooling heat radiator according to claim 6, which is characterized in that the liquid-cooling heat radiator includes two liquid coolings
Plate, and the power module mounting surface on described two liquid cooling plates is located at the lateral surface of described two liquid cooling plates.
8. liquid-cooling heat radiator according to claim 2, which is characterized in that the first runner includes multiple independent
One subflow road, the second flow channel include multiple independent second subflow roads, and each first subflow road respectively with one
The connection of corresponding second subflow road.
9. liquid-cooling heat radiator according to claim 8, which is characterized in that the multiple first subflow road edge is parallel to institute
State power module mounting surface direction arrangement, and the coolant liquid in the multiple first subflow road flow to it is identical；It is the multiple
Second subflow road is arranged along the direction for being parallel to the power module mounting surface, and the coolant liquid in the multiple second subflow road
Flow to it is identical.
10. a kind of electric machine controller, which is characterized in that including multiple power modules and such as any one of claim 1-9 institute
The liquid-cooling heat radiator stated, and the multiple power module passes through the power mould that insulating heat-conductive plate is fixed on the liquid cooling plate respectively
Block mounting surface.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821175994.0U CN208460748U (en) | 2018-07-24 | 2018-07-24 | Liquid-cooling heat radiator and electric machine controller |
| PCT/CN2018/115035 WO2020019579A1 (en) | 2018-07-24 | 2018-11-12 | Liquid cooling heat radiating apparatus and motor controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821175994.0U CN208460748U (en) | 2018-07-24 | 2018-07-24 | Liquid-cooling heat radiator and electric machine controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208460748U true CN208460748U (en) | 2019-02-01 |
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ID=65179543
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821175994.0U Active CN208460748U (en) | 2018-07-24 | 2018-07-24 | Liquid-cooling heat radiator and electric machine controller |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN208460748U (en) |
| WO (1) | WO2020019579A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108766946A (en) * | 2018-07-24 | 2018-11-06 | 苏州汇川联合动力***有限公司 | Liquid-cooling heat radiator and electric machine controller |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6477276B2 (en) * | 2015-06-12 | 2019-03-06 | 富士通株式会社 | Cooling plate and information processing apparatus provided with cooling plate |
| CN206713229U (en) * | 2017-03-06 | 2017-12-05 | 苏州汇川技术有限公司 | A kind of radiator and the electric vehicle controller with the radiator |
| CN206640923U (en) * | 2017-03-06 | 2017-11-14 | 苏州汇川技术有限公司 | Radiator and the electric vehicle controller with radiator |
| CN112020271B (en) * | 2017-07-17 | 2022-04-22 | 华为技术有限公司 | Liquid cooling device and server including the same |
| CN108124409B (en) * | 2017-12-19 | 2021-03-23 | 漳州科华技术有限责任公司 | Server liquid cooling system |
| CN108766946B (en) * | 2018-07-24 | 2024-03-19 | 苏州汇川联合动力***股份有限公司 | Liquid cooling heat abstractor and motor controller |
-
2018
- 2018-07-24 CN CN201821175994.0U patent/CN208460748U/en active Active
- 2018-11-12 WO PCT/CN2018/115035 patent/WO2020019579A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108766946A (en) * | 2018-07-24 | 2018-11-06 | 苏州汇川联合动力***有限公司 | Liquid-cooling heat radiator and electric machine controller |
| CN108766946B (en) * | 2018-07-24 | 2024-03-19 | 苏州汇川联合动力***股份有限公司 | Liquid cooling heat abstractor and motor controller |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020019579A1 (en) | 2020-01-30 |
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Address after: 215000 52 tianedang Road, Yuexi, Wuzhong District, Suzhou City, Jiangsu Province Patentee after: Suzhou Huichuan United Power System Co.,Ltd. Address before: 215000 52 tianedang Road, Yuexi Town, Wuzhong District, Suzhou City, Jiangsu Province Patentee before: SUZHOU HUICHUAN UNITED POWER SYSTEM Co.,Ltd. |