CN220457771U - Liquid cooling electric power steering control device - Google Patents
Liquid cooling electric power steering control device Download PDFInfo
- Publication number
- CN220457771U CN220457771U CN202321713127.9U CN202321713127U CN220457771U CN 220457771 U CN220457771 U CN 220457771U CN 202321713127 U CN202321713127 U CN 202321713127U CN 220457771 U CN220457771 U CN 220457771U
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- cooling
- liquid
- electronic controller
- pipeline
- water pump
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- 238000001816 cooling Methods 0.000 title claims abstract description 90
- 239000007788 liquid Substances 0.000 title claims abstract description 87
- 239000000110 cooling liquid Substances 0.000 claims abstract description 66
- 239000000498 cooling water Substances 0.000 claims abstract description 37
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 14
- 239000002826 coolant Substances 0.000 claims description 3
- 239000012809 cooling fluid Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 15
- 230000000694 effects Effects 0.000 description 9
- 230000000630 rising effect Effects 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 238000013021 overheating Methods 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000005495 investment casting Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- Power Steering Mechanism (AREA)
Abstract
The utility model discloses a liquid cooling electric power steering control device, which comprises: the device comprises an electronic controller cavity, a booster motor body, an electronic controller, a cooling valve body, a cooling water pump, a liquid outlet pipeline, a liquid inlet pipeline and a cooling liquid storage tank; wherein the electronic controller is arranged on the cavity wall of the electronic controller cavity, and the electronic controller is provided with a heating device; the cooling valve body is arranged between the cavity wall of the electronic controller cavity and the shell wall of the booster motor body and is respectively attached to the cavity wall of the electronic controller cavity and the shell wall of the booster motor body; the cooling valve body comprises a liquid cooling pipeline; the cooling liquid storage tank is internally provided with cooling liquid; two ends of the liquid inlet pipeline are respectively communicated with the liquid cooling pipeline and the cooling liquid storage tank; two ends of the liquid outlet pipeline are respectively communicated with the liquid cooling pipeline and the cooling liquid storage tank; the cooling water pump is used for driving the cooling liquid to circularly flow between the cooling liquid storage tank and the liquid cooling pipeline so as to exchange heat with the electronic controller. The utility model can solve the heat dissipation problem of the liquid cooling electric power steering control device.
Description
Technical Field
The utility model relates to the field of automobile controllers, in particular to a liquid-cooled electric power steering control device.
Background
The existing liquid cooling electric power steering control device comprises an electronic controller, an electronic controller cavity, a power assisting motor body and a connector, wherein the electronic controller is arranged on the cavity wall (such as the bottom wall) of the electronic controller cavity, a heating device (such as a power assisting motor power driving module) is arranged on the electronic controller, the cavity wall of the electronic controller cavity is directly attached to the shell wall of the power assisting motor body, and a liquid cooling device and cooling control are not arranged between the cavity wall of the electronic controller cavity and the shell wall of the power assisting motor body.
When the electronic controller and the booster motor body start to work, a heating device (such as a booster motor power driving module) in the electronic controller can generate heat, and if heat cannot be dissipated or heat dissipation failure can cause overheat or even burn of the heating device (such as the booster motor power driving module), the temperature rising performance of the electronic controller is reduced.
In addition, the temperature (precision) drifting phenomenon of a heating device (such as a power driving module of a power-assisted motor) can occur, so that the working performance and stability of the electronic controller are greatly reduced, and meanwhile, the service life of the liquid-cooled electric power steering control device is prolonged.
Disclosure of Invention
The utility model aims to solve the problem of heat dissipation of a liquid-cooled electric power steering control device. The utility model provides a liquid cooling electric power steering control device which can solve the heat dissipation problem of the liquid cooling electric power steering control device.
To solve the above technical problems, an embodiment of the present utility model discloses a liquid-cooled electric power steering control device, including: the device comprises an electronic controller cavity, a booster motor body, an electronic controller, a cooling valve body, a cooling water pump, a liquid outlet pipeline, a liquid inlet pipeline and a cooling liquid storage tank; wherein,
the electronic controller is arranged on the cavity wall of the electronic controller cavity, and the electronic controller is provided with a heating device;
the cooling valve body is arranged between the cavity wall of the electronic controller cavity and the shell wall of the power-assisted motor body and is respectively attached to the cavity wall of the electronic controller cavity and the shell wall of the power-assisted motor body;
the cooling valve body comprises a liquid cooling pipeline;
the cooling liquid storage tank is internally provided with cooling liquid;
two ends of the liquid inlet pipeline are respectively communicated with the liquid cooling pipeline and the cooling liquid storage tank;
two ends of the liquid outlet pipeline are respectively communicated with the liquid cooling pipeline and the cooling liquid storage tank;
the cooling water pump is used for driving cooling liquid to circularly flow between the cooling liquid storage tank and the liquid cooling pipeline so as to exchange heat with the electronic controller.
By adopting the technical scheme, the cooling liquid can be driven to circularly flow between the cooling liquid storage tank and the liquid cooling pipeline through the cooling water pump so as to perform heat exchange with the heating device (such as the power driving module of the power-assisted motor), thereby taking away the heating device (such as the power driving module of the power-assisted motor) inside the electronic controller, achieving the effect of heat dissipation, preventing the overheating or burning condition caused by incapability of heat dissipation or poor heat dissipation of the heating device (such as the power driving module of the power-assisted motor), improving the temperature rising performance of the electronic controller, reducing the temperature (precision) drift phenomenon caused by heat generation of the heating device (such as the power driving module of the power-assisted motor), improving the working performance and stability of the electronic controller, and greatly improving the service life of the liquid cooling electric power-assisted steering control device.
Meanwhile, the cooling valve body is attached to the cavity wall of the electronic controller cavity and the shell wall of the booster motor body, and when the cooling liquid flows in the cooling valve body, heat generated during the operation of the electronic controller and the booster motor body can be taken away synchronously, so that the temperatures of the electronic controller and the booster motor body are reduced, and the working performance and the service life of the electronic controller and the booster motor body are improved. According to another specific embodiment of the utility model, the embodiment of the utility model discloses a liquid cooling electric power steering control device, wherein the cooling valve body comprises a water inlet hole and a water outlet hole, one end of a liquid cooling pipeline is connected with the water inlet hole, and the other end of the liquid cooling pipeline is connected with the water outlet hole; one end of the cooling water pump is connected with the water inlet hole, and the other end of the cooling water pump is connected with the liquid inlet pipeline; or one end of the cooling water pump is connected with the water outlet hole, and the other end of the cooling water pump is connected with the liquid outlet pipeline.
By adopting the technical scheme, the power source can be provided through the cooling water pump, so that the cooling liquid is driven to flow into the water inlet hole of the liquid cooling pipeline from the liquid inlet pipeline of the cooling liquid storage tank, then flows into the liquid outlet pipeline of the cooling liquid storage tank from the water outlet hole of the liquid cooling pipeline, the cooling liquid can circularly flow between the cooling liquid storage tank and the liquid cooling pipeline, and the redundant heat on the electronic controller is taken away.
According to another embodiment of the utility model, the utility model discloses a liquid cooling electric power steering control device, wherein the liquid cooling pipeline comprises a plurality of communicated U-shaped pipelines.
By adopting the technical scheme, the heat of the electronic controller and the power-assisted motor can be taken away by flowing the cooling liquid between the U-shaped pipelines, and meanwhile, the U-shaped pipelines have the effect of enlarging the internal heat dissipation area, so that the purpose of faster heat dissipation can be achieved.
According to another embodiment of the utility model, the utility model discloses a liquid cooling electric power steering control device, wherein the cooling valve body is made of metal.
By adopting the technical scheme, the cooling valve body is made of metal, so that the cooling liquid has better heat dissipation effect in the cooling valve body, and the cooling valve body plays a role of a radiator.
According to another specific embodiment of the utility model, the embodiment of the utility model discloses a liquid cooling electric power steering control device, which further comprises a connector and a water pump control line, wherein the connector is connected with the electronic controller and the water pump control line, the water pump control line is connected with the cooling water pump, and the electronic controller transmits driving signals to the cooling water pump through the connector and the water pump control line so that the cooling water pump drives cooling liquid to circulate between the cooling liquid storage tank and the liquid cooling pipeline.
By adopting the technical scheme, the electronic controller and the cooling water pump can be connected through the connector and the water pump control line, so that the electronic controller can transmit a driving signal to the cooling water pump, and start-stop and speed control of the cooling water pump are realized.
According to another specific embodiment of the utility model, the embodiment of the utility model discloses a liquid-cooled electric power steering control device, wherein the heating device comprises a power driving module of a power assisting motor, and the power driving module of the power assisting motor is connected with the power assisting motor body.
By adopting the technical scheme, the power of the control signal output by the algorithm can be amplified through the power driving module of the power-assisted motor and transmitted to the power-assisted motor, so that the power-assisted control of the motor is realized.
According to another embodiment of the present utility model, a liquid cooled electric power steering control device is disclosed, wherein the cooling fluid comprises ethylene glycol.
By adopting the technical scheme, the boiling point of the glycol is about 110 ℃, the freezing point can be reduced to about-48.3 ℃, and the cooling liquid can be prevented from being solidified in winter, so that the cooling effect is prevented from being influenced.
Drawings
Fig. 1 is a block diagram of a liquid-cooled electric power steering control device according to some embodiments.
Fig. 2 is an overall perspective view of a liquid-cooled electric power steering control apparatus according to an embodiment of the present utility model.
Fig. 3 shows an exploded view of a liquid-cooled electric power steering control apparatus according to an embodiment of the present utility model.
Fig. 4 shows a design of the internal piping of the cooling valve body.
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present specification, by describing the embodiments of the present utility model with specific examples. While the description of the utility model will be described in connection with the preferred embodiments, it is not intended to limit the inventive features to the implementation. Rather, the purpose of the utility model described in connection with the embodiments is to cover other alternatives or modifications, which may be extended by the claims based on the utility model. The following description contains many specific details for the purpose of providing a thorough understanding of the present utility model. The utility model may be practiced without these specific details. Furthermore, some specific details are omitted from the description in order to avoid obscuring the utility model. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
It should be noted that in this specification, like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present embodiment, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present utility model.
The terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
In the description of the present embodiment, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present embodiment can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1, in some embodiments, the liquid-cooled electric power steering control device includes an electronic controller 10', an electronic controller chamber 101', a connector 11', and a power-assisted motor body 20', wherein the electronic controller 10' is disposed on a chamber wall (e.g., a bottom wall) of the electronic controller chamber 101', the electronic controller 10' is provided with a heat generating device (e.g., a power-assisted motor power driving module), and the chamber wall of the electronic controller chamber 101' is directly attached to a housing wall of the power-assisted motor body 20' without a liquid cooling device and cooling control therebetween.
When the electronic controller 10' and the power-assisted motor body 20' start to work, a heating device (such as a power-assisted motor power driving module) inside the electronic controller 10' can generate heat, and heat cannot be dissipated or heat dissipation failure can cause overheating or even burning of the heating device (such as the power-assisted motor power driving module), so that the temperature rising performance of the electronic controller 10' is reduced, the temperature (precision) drifting phenomenon of the heating device (such as the power-assisted motor power driving module) can also occur, the working performance and stability of the electronic controller 10' are greatly reduced, and meanwhile, the service life of the liquid-cooled electric power-assisted steering control device is reduced.
Therefore, the embodiment of the application provides a liquid cooling electric power steering control device, through increasing liquid cooling device and cooling control, with heat exchange with the heating device (for example, a power-assisted motor power driving module), thereby take away the heat that the inside heating device of electronic controller (for example, a power-assisted motor power driving module) produced, reach radiating effect, prevent the overheating or burning out condition that the heating device (for example, a power-assisted motor power driving module) can't dispel the heat or the poor heat that leads to, promote the temperature rise performance of electronic controller, reduce the temperature (precision) drift phenomenon that the heating device (for example, a power-assisted motor power driving module) arouses by heating, improve the working property and the stability of electronic controller, simultaneously greatly improved the life of liquid cooling electric power steering control device.
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.
Specifically, referring to fig. 2, a liquid-cooled electric power steering control apparatus includes: the electronic controller 10, the electronic controller cavity 101, the booster motor body 20, the cooling valve body 30, the cooling liquid storage tank 31, the liquid outlet pipeline 32, the liquid inlet pipeline 33 and the cooling water pump 35.
Illustratively, with continued reference to FIG. 2, the electronic controller 10 is disposed on a wall of the electronic controller cavity 101, the electronic controller 10 being provided with a heat generating device; the cooling valve body 30 is arranged between the cavity wall of the electronic controller cavity 101 and the shell wall of the booster motor body 20, and is respectively attached to the cavity wall of the electronic controller cavity 101 and the shell wall of the booster motor body 20; the cooling valve body 30 includes a liquid cooling line 303; the coolant liquid reservoir 31 stores coolant; two ends of the liquid inlet pipeline 33 are respectively communicated with the liquid cooling pipeline 303 and the liquid cooling liquid storage tank 31; two ends of the liquid outlet pipeline 32 are respectively communicated with the liquid cooling pipeline 303 and the cooling liquid storage tank 31; the cooling water pump 35 is used to drive the cooling liquid to circulate between the cooling liquid reservoir 31 and the liquid cooling pipeline 303 so as to exchange heat with the electronic controller 10.
Exemplary, the embodiment of the application does not limit the type of the cooling liquid, the cooling liquid can be ethylene glycol, the boiling point of the ethylene glycol is about 110 ℃, the freezing point can be reduced to about-48.3 ℃, the cooling liquid can be prevented from being solidified in winter, the cooling effect is affected, and the cooling liquid can also be propylene glycol, so long as the purpose of cooling can be achieved, and the cooling liquid is within the protection scope of the application.
The heating device may include a power driving module (not shown) of the power-assisted motor, where the power driving module is connected to the power-assisted motor body 20, and the power driving module may amplify the power of the control signal output by the algorithm and transmit the amplified power to the power-assisted motor, so as to implement power-assisted control of the motor.
Illustratively, with continued reference to fig. 2, the cooling water pump 35 drives the cooling liquid in the cooling liquid storage tank 31 to enter the liquid cooling pipeline 303 through the liquid inlet pipeline 33, heat generated by a heating device (such as a power-assisted motor power driving module) inside the electronic controller 10 is conducted to the cooling liquid in the cooling valve body 30, meanwhile, the temperature of the electronic controller 10 and the power-assisted motor body 20 attached to the cooling valve body 30 can be lowered, and then the cooling liquid absorbing the heat enters the cooling liquid storage tank 31 from the liquid outlet pipeline 32, so that the cooling liquid can circulate between the cooling liquid storage tank 31 and the liquid cooling pipeline 303, and heat exchange is performed between the cooling liquid and the heating device (such as the power-assisted motor power driving module) inside the electronic controller 10, so as to achieve the heat dissipation effect.
Meanwhile, the cooling valve body 30 is attached to the cavity wall of the electronic controller cavity 101 and the shell wall of the booster motor body 20, so that when the cooling liquid flows in the cooling valve body 30, heat generated during the operation of the electronic controller 10 and the booster motor body 20 can be taken away synchronously, the temperatures of the electronic controller 10 and the booster motor body 20 are reduced, and the working performance and the service life of the electronic controller 10 and the booster motor body 20 are improved.
Through the above process, the situation that the heating device (such as the power driving module of the power-assisted motor) cannot dissipate heat or is overheated or burnt due to poor heat dissipation is prevented, the temperature rising performance of the electronic controller 10 is improved, the temperature (precision) drifting phenomenon of the heating device (such as the power driving module of the power-assisted motor) caused by heating is reduced, the working performance and stability of the electronic controller 10 are improved, and meanwhile, the service life of the liquid-cooled electric power steering control device is greatly prolonged.
Illustratively, referring to fig. 3 and 4, the cooling valve body 30 includes a water outlet 301 and a water inlet 302, one end of the liquid cooling pipeline 303 is connected to the water inlet 302, and the other end is connected to the water outlet 301, wherein, referring to fig. 4, a plurality of communicated U-shaped pipelines form the liquid cooling pipeline 303, so that the heat dissipation area inside the liquid cooling pipeline 303 is enlarged, and a great amount of heat is taken away by the flow of the cooling liquid. Illustratively, the U-shaped pipeline is realized by adopting an investment casting mode in a process, and meanwhile, the cooling valve body 30 is made of a metal material, so that the cooling liquid has a better heat dissipation effect in the cooling valve body 30, and the cooling valve body 30 plays a role of a radiator.
Illustratively, referring to fig. 2 and 3, a cooling water pump 35 is connected at one end to the water inlet 302 and at the other end to the liquid inlet line 33, and may be powered by the cooling water pump 35 such that the cooling liquid in the cooling liquid reservoir 31 enters the liquid cooling line 303 through the liquid inlet line 33 and the water inlet 302.
In some possible embodiments, or the cooling water pump 35 is connected to the water outlet 301 at one end and the liquid outlet pipe 32 at the other end, the cooling water pump 35 may be used to supply power, so that the cooling liquid in the liquid cooling pipe 303 enters the cooling liquid storage tank 31 through the water outlet 301 and the liquid outlet pipe 32.
That is, the cooling water pump 35 provides a power source, so that the cooling liquid is driven to enter the liquid cooling pipeline 303 from the cooling liquid storage tank 31 through the liquid inlet pipeline 33 and the water inlet hole 302, and then enter the cooling liquid storage tank 31 from the liquid cooling pipeline 303 through the water outlet hole 301 and the liquid outlet pipeline 32, so that the cooling liquid can circulate between the cooling liquid storage tank 31 and the liquid cooling pipeline 303, heat generated by a heating device (such as a power driving module of a power assisting motor) in the electronic controller 10 is taken away, and meanwhile, the temperature of the electronic controller 10 and the power assisting motor body 20 attached to the cooling valve body 30 can be reduced.
Illustratively, referring to fig. 2, a connector 11 is disposed on one side of the electronic controller 10, the connector 11 is connected with a water pump control line 34 and the electronic controller 10, and then the electronic controller 10 is connected with a cooling water pump 35 through the water pump control line 34, so that the electronic controller 10 can transmit a driving signal to the cooling water pump 35 through the connector 11 and the water pump control line 34, and control the start-stop and the speed of the cooling water pump 35, so that the cooling water pump 35 drives the cooling liquid to circulate between the cooling liquid storage tank 31 and the liquid cooling pipeline 303.
While the utility model has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a further detailed description of the utility model with reference to specific embodiments, and it is not intended to limit the practice of the utility model to those descriptions. Various changes in form and detail may be made therein by those skilled in the art, including a few simple inferences or alternatives, without departing from the spirit and scope of the present utility model.
Claims (7)
1. A liquid-cooled electric power steering control apparatus, comprising: the device comprises an electronic controller cavity, a booster motor body, an electronic controller, a cooling valve body, a cooling water pump, a liquid outlet pipeline, a liquid inlet pipeline and a cooling liquid storage tank; wherein,
the electronic controller is arranged on the cavity wall of the electronic controller cavity, and the electronic controller is provided with a heating device;
the cooling valve body is arranged between the cavity wall of the electronic controller cavity and the shell wall of the power-assisted motor body and is respectively attached to the cavity wall of the electronic controller cavity and the shell wall of the power-assisted motor body;
the cooling valve body comprises a liquid cooling pipeline;
the cooling liquid storage tank is internally provided with cooling liquid;
two ends of the liquid inlet pipeline are respectively communicated with the liquid cooling pipeline and the cooling liquid storage tank;
two ends of the liquid outlet pipeline are respectively communicated with the liquid cooling pipeline and the cooling liquid storage tank;
the cooling water pump is used for driving cooling liquid to circularly flow between the cooling liquid storage tank and the liquid cooling pipeline so as to exchange heat with the electronic controller.
2. The liquid-cooled electric power steering control device according to claim 1, wherein the cooling valve body comprises a water inlet hole and a water outlet hole, one end of the liquid-cooled pipeline is connected with the water inlet hole, and the other end is connected with the water outlet hole; one end of the cooling water pump is connected with the water inlet hole, and the other end of the cooling water pump is connected with the liquid inlet pipeline; or one end of the cooling water pump is connected with the water outlet hole, and the other end of the cooling water pump is connected with the liquid outlet pipeline.
3. The liquid-cooled electric power steering control of claim 1, wherein the liquid-cooled pipeline comprises a plurality of connected U-shaped pipelines.
4. The liquid-cooled electric power steering control device of claim 1, wherein the cooling valve body is made of a metal material.
5. The liquid-cooled electric power steering control device of claim 1, further comprising a connector and a water pump control line, wherein the connector connects the electronic controller and the water pump control line, wherein the water pump control line connects the cooling water pump, and wherein the electronic controller transmits a driving signal to the cooling water pump through the connector and the water pump control line to cause the cooling water pump to drive a cooling fluid to circulate between the cooling fluid reservoir and the liquid cooling pipeline.
6. The liquid cooled electric power steering control of claim 1, wherein the heat generating device comprises a power motor power drive module coupled to the power motor body.
7. The liquid-cooled electric power steering control device according to any one of claims 1 to 6, wherein the coolant includes ethylene glycol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321713127.9U CN220457771U (en) | 2023-06-30 | 2023-06-30 | Liquid cooling electric power steering control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321713127.9U CN220457771U (en) | 2023-06-30 | 2023-06-30 | Liquid cooling electric power steering control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220457771U true CN220457771U (en) | 2024-02-06 |
Family
ID=89724161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321713127.9U Active CN220457771U (en) | 2023-06-30 | 2023-06-30 | Liquid cooling electric power steering control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220457771U (en) |
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2023
- 2023-06-30 CN CN202321713127.9U patent/CN220457771U/en active Active
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