CN212936466U - Water cooling structure for motor controller - Google Patents
Water cooling structure for motor controller Download PDFInfo
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- CN212936466U CN212936466U CN202021232579.1U CN202021232579U CN212936466U CN 212936466 U CN212936466 U CN 212936466U CN 202021232579 U CN202021232579 U CN 202021232579U CN 212936466 U CN212936466 U CN 212936466U
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Abstract
The utility model belongs to the technical field of electric vehicle heat dissipation, in particular to a water cooling structure for a motor controller, which comprises a cooling water channel consisting of a water cooling bottom plate and a cover plate, wherein when the water cooling structure is installed, an IGBT is installed above the cooling water channel, and cooling liquid in the cooling water channel can rapidly take away generated working heat through heat transfer; and the water channel clapboard is arranged in the cooling water channel, so that the cooling water channel can be divided as required, and due to the existence of the water channel clapboard, a flow path for shunting and converging the cooling liquid in the cooling water channel can appear, so that the temperature of the cooling liquid is balanced, and the cooling efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of the electric motor car heat dissipation, concretely relates to a water-cooling structure for machine controller.
Background
The heat dissipation mode of the motor control system mainstream is mostly water-cooling heat dissipation, and the form of cooling system water course is various, and the spoiler also has multiple form. But the heat dissipation effect is general, and although can reach the operating temperature that the IGBT allowed, the temperature rise is still higher, often appears the temperature about 140 ℃, and the cooling effect is general. When the motor works for a long time, the temperature of the IGBT is kept near the upper limit of the allowed temperature for a long time, the service life of the IGBT is easily shortened, and even the control performance of the whole vehicle is influenced.
In the prior art, patent document with the publication number of CN202285481U provides a water-cooling bottom plate for a motor controller of a pure electric vehicle, which comprises a water-cooling bottom plate body arranged at the bottom of the motor controller, wherein a water-cooling groove with a water inlet and a water outlet is formed in the water-cooling bottom plate body, a cover plate is arranged on the water-cooling groove in a sealing manner, a plurality of water guide plates are alternately arranged on two side walls in the water-cooling groove at intervals, a water channel in the water-cooling groove is divided into an S shape, and a shunting partition plate is respectively arranged in the water channel between two adjacent water guide plates in parallel along the longitudinal direction of the water channel. The water channel in the patent document is a common single water channel, and in the cooling process, because the temperature rise degree of cooling liquid flowing through different positions is different, once a flowing dead zone occurs, the cooling effect is directly influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a water-cooling structure for machine controller to solve the current not good problem of cooling water course cooling effect.
The utility model discloses a water-cooling structure for machine controller adopts following technical scheme:
the utility model provides a water-cooling structure for machine controller, includes the water-cooling bottom plate of opening recess down, the groove opening part of water-cooling bottom plate be provided with be used for with the recess involution and then form the apron of cooling water course, on the water-cooling bottom plate in the both ends of cooling water course are provided with water inlet, the delivery port that are used for supplying the coolant liquid to advance, go out the cooling water course, still be equipped with on the water-cooling bottom plate along the coolant liquid flow direction extend, be used for separating into the first flow region and the regional water course baffle of second flow with the cooling water course, the coolant liquid flow direction in first flow region, the second flow region is the same.
Furthermore, the water channel partition plates are respectively arranged at the positions close to the water inlet and the water outlet.
Further, the water channel clapboard is in a straight plate shape.
Furthermore, the lower surface of the water-cooling bottom plate is uniformly provided with a cylindrical spoiler which is suspended downwards.
Furthermore, the lower end of the cylindrical spoiler and the cover plate are arranged at intervals.
Further, the distance between the lower end of the cylindrical spoiler and the cover plate is 2mm-3 mm.
Further, the cooling water channels are arranged along an S shape.
Furthermore, the water-cooling structure is also provided with an enclosing frame which is arranged at the circumferential position of the upper surface of the water-cooling bottom plate and extends upwards in a hanging manner.
Furthermore, the enclosing frame and the water-cooling bottom plate are of an integrally formed structure.
Furthermore, a threaded hole for installing the IGBT is formed in the water channel partition plate.
The utility model has the advantages that:
the utility model provides a water-cooling structure for motor controller, including the cooling water course that comprises water-cooling bottom plate and apron, when installing, install IGBT above the cooling water course, the coolant liquid in the cooling water course can be taken away the work heat that produces rapidly through heat transfer; and the water channel clapboard is arranged in the cooling water channel, so that the cooling water channel can be divided as required, and due to the existence of the water channel clapboard, a flow path for shunting and converging the cooling liquid in the cooling water channel can appear, so that the temperature of the cooling liquid is balanced, and the cooling efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a water cooling structure for a motor controller according to an embodiment of the present invention;
FIG. 2 is a sectional view taken along line B-B of FIG. 1;
fig. 3 is a water passage flow diagram of an embodiment of a water cooling structure for a motor controller according to the present invention;
reference numerals:
1. the water cooling device comprises a water cooling bottom plate, 2, a water channel partition plate, 3, a cylindrical spoiler, 4, a cooling area, 5, lightening holes, 6, a surrounding frame, 7, a cover plate, 8, a water inlet, 9 and a water outlet.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be embodied in many other forms than those specifically described herein and similar modifications can be made by one skilled in the art without departing from the spirit and scope of the invention and, therefore, the invention is not limited to the embodiments of the substrate disclosed below.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The utility model discloses an embodiment of a water-cooling structure for machine controller, as shown in fig. 1 to fig. 3, a water-cooling structure for machine controller, water-cooling bottom plate 1 including opening recess down, the groove opening part of water-cooling bottom plate 1 is provided with and is used for the apron 7 with the recess involution and then form the cooling water course, water-cooling bottom plate 1 is gone up and is provided with in the both ends of cooling water course and is used for supplying the coolant liquid to advance, go out the water inlet of cooling water course, the delivery port, still be equipped with on the water-cooling bottom plate 1 and extend along the coolant liquid flow direction, a water course baffle 2 for separating into first flow region and second flow region with the cooling water course, first flow region, the coolant liquid flow direction in the second flow region is the same. When the IGBT cooling device is installed, the IGBT is installed above the cooling water channel, and the cooling liquid in the cooling water channel can quickly take away the generated working heat through heat transfer; and the water channel clapboard is arranged in the cooling water channel, so that the cooling water channel can be divided as required, and due to the existence of the water channel clapboard, a flow path for shunting and converging the cooling liquid in the cooling water channel can appear, so that the temperature of the cooling liquid is balanced, and the cooling efficiency is improved.
The two water channel partition plates 2 are respectively arranged at the positions close to the water inlet and the water outlet, and the water channel partition plates 2 are in a straight plate shape; specifically, the cooling water channel in the embodiment is formed by connecting four rows of branch channels which are connected end to end, and the joints connected end to end adopt curve connection, namely the formed cooling water channels are arranged along an S shape, so that the flow resistance is reduced as much as possible, and backflow and flow dead zones are avoided as much as possible; the water channel clapboard 2 is arranged on the branch channel close to the water inlet and the water outlet.
The lower surface of the water-cooling bottom plate 1 is uniformly provided with downwardly-suspended cylindrical spoilers 3, specifically, the cylindrical spoilers 3 are arranged in a matrix form, and the cylindrical spoilers 3 and the water-cooling bottom plate 1 are formed in one step by low-pressure casting. The structure effectively increases the heat conduction area and increases the heat conduction efficiency. The IGBT is arranged above the water channel, so that the heat generated by the IGBT is conducted to the water cooling plate through the aluminum substrate and the heat-conducting silicone grease, and then conducted in the water cooling plate as much as possible, and the heat exchange is carried out on the cylindrical spoiler 3 as much as possible. Since the cylindrical spoiler 3 has a small diameter, heat is rapidly taken away when the coolant flows therethrough.
The lower end of the cylindrical spoiler 3 is spaced apart from the cover plate 7. The distance between the lower end of the cylindrical spoiler 3 and the cover plate 7 is 2mm-3mm, specifically 2mm, so that the flow resistance of the cooling liquid can be reduced, the cooling liquid can be efficiently circulated, the flowing dead zone cannot occur, and the temperature concentration cannot occur. Effectively increases the turbulent kinetic energy, so that the cooling liquid can take away more heat, but the flow resistance is not too large.
The water-cooling structure further comprises an enclosing frame 6 which is arranged at the circumferential position of the upper surface of the water-cooling bottom plate 1 and extends upwards in a hanging mode, and specifically, the enclosing frame 6 and the water-cooling bottom plate 1 are of an integrally formed structure. The enclosure frame 6 and the bottom plate are designed into a whole, so that the processing procedures can be reduced, the material is saved, and the whole electric control sealing performance can be improved.
In this embodiment, the cover plate 7 and the water-cooled bottom plate 1 are connected by friction welding. The problems of leakage and the like are thoroughly avoided, the electric control structure is effectively simplified, the processing technology is simplified, and the sealing of the water channel is omitted. The water channel clapboard is provided with a threaded hole for installing the IGBT; the non-water channel position on the water-cooling bottom plate 1 is provided with the weight reducing hole 5, so that the quality of the whole cold plate is ensured to be as small as possible, and the light weight of the whole structure is favorably realized.
The integral type water-cooling bottom plate 1 that this embodiment provided is favorable to improving automatically controlled protection level. When the coolant liquid flows through the water channel, the cylindrical spoiler 3 specially optimized in the water channel can well divide the coolant liquid, the gap above the plate surface can ensure that the bottom coolant liquid is smooth without obstruction, and the cylindrical spoiler 3 directly conducts heat generated by the IGBT to the coolant liquid, so that the heat exchange area is enlarged to 2-3 times of the original area. The arrangement of the cylindrical spoilers 3, especially at the transition, has the functions of flow splitting, flow guiding and heat transfer, and no backflow zone or dead zone exists in the flow channel. In addition, by adopting the water cooling structure provided by the embodiment, the temperature difference between the inlet and the outlet is not more than 40 ℃, and the highest temperature of the IGBT is not more than 87 ℃.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a water-cooling structure for machine controller which characterized in that: including the water-cooling bottom plate of opening recess down, the groove opening department of water-cooling bottom plate be provided with be used for with the recess involution and then form the apron of cooling water course, on the water-cooling bottom plate in the both ends of cooling water course are provided with water inlet, the delivery port that is used for supplying the coolant liquid to advance, go out the cooling water course, still be equipped with on the water-cooling bottom plate along the coolant liquid flow direction extend, be used for separating into the water course baffle of the regional and second flow region of first flow with the cooling water course, the coolant liquid flow direction in the regional of first flow region, second flow is the same.
2. The water cooling structure for a motor controller according to claim 1, wherein: the water channel partition plates are respectively arranged at the positions close to the water inlet and the water outlet.
3. The water cooling structure for a motor controller according to claim 1, wherein: the water channel clapboard is in a straight plate shape.
4. The water cooling structure for a motor controller according to any one of claims 1 to 3, wherein: and the lower surface of the water-cooling bottom plate is uniformly provided with a cylindrical spoiler which is suspended downwards.
5. The water cooling structure for a motor controller according to claim 4, wherein: the lower end of the cylindrical spoiler is arranged at intervals with the cover plate.
6. The water cooling structure for a motor controller according to claim 5, wherein: the distance between the lower end of the cylindrical spoiler and the cover plate is 2mm-3 mm.
7. The water cooling structure for a motor controller according to claim 6, wherein: the cooling water channels are arranged along an S shape.
8. The water cooling structure for a motor controller according to any one of claims 5 to 7, wherein: the water-cooling structure is also provided with an enclosing frame which is arranged at the circumferential position of the upper surface of the water-cooling bottom plate and extends upwards in a hanging manner.
9. The water cooling structure for a motor controller according to claim 8, wherein: the enclosing frame and the water-cooling bottom plate are of an integrally formed structure.
10. The water cooling structure for a motor controller according to claim 9, wherein: and the water channel partition plate is provided with a threaded hole for installing the IGBT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021232579.1U CN212936466U (en) | 2020-06-30 | 2020-06-30 | Water cooling structure for motor controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021232579.1U CN212936466U (en) | 2020-06-30 | 2020-06-30 | Water cooling structure for motor controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212936466U true CN212936466U (en) | 2021-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021232579.1U Active CN212936466U (en) | 2020-06-30 | 2020-06-30 | Water cooling structure for motor controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212936466U (en) |
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2020
- 2020-06-30 CN CN202021232579.1U patent/CN212936466U/en active Active
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