Double-sided water-cooling radiator, motor controller and vehicle

Abstract

The utility model provides a double-sided water-cooling radiator, a motor controller and a vehicle, belonging to the technical field of vehicles, comprising a water-cooling substrate, a first surface of the water-cooling substrate is provided with a first cooling flow channel used for cooling an IGBT module, a second surface of the water-cooling substrate opposite to the first surface is provided with a second cooling flow channel used for cooling a capacitor module, and the second surface of the water-cooling substrate opposite to the first surface is provided with a second cooling flow channel used for cooling a capacitor module. The first cooling flow channel and the second cooling flow channel are separated through a partition plate. The water cooling substrate is further provided with a cooling water inlet and a cooling water outlet which are communicated with the first cooling flow channel and the second cooling flow channel. According to the utility model, the independent water-cooling substrate is arranged, when the water-cooling substrate goes wrong, only the water-cooling substrate needs to be replaced, and the whole controller box body does not need to be scrapped, so that the maintenance and replacement cost is greatly reduced, and the resource waste is reduced; according to the utility model, the cooling channels are arranged on the two sides respectively, the IGBT module can be directly cooled, the capacitor module can also be directly cooled, the heat dissipation efficiency of the capacitor module is improved, and thus the heat dissipation effect of the controller is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to vehicle technical field, concretely relates to a double -faced water -cooled radiator, motor controller and vehicle. BACKGROUND

[0002] The motor controller is also called inverter, is the key part of electric vehicle, decides the power performance, it is composed of low pressure and high pressure part, drives motor through inverter bridge, realizes motor control, speed regulation, energy recovery etc.

[0003] The main function of the motor controller is to realize DC to AC, drive motor rotation, in the process of DC to AC, the controller internal device IGBT module will produce heat, if the heat is too high, will affect the function of the controller, therefore needs to cool the IGBT module to radiate heat.

[0004] Therefore, the existing cooling water channel cooling mode has the following deficiencies: (1) integrated into the controller box form, if the cooling water channel has a problem, the entire controller box needs to be replaced, the replacement and maintenance cost is high, and resources are wasted; (2) this integrated cooling water channel into the controller box can only cool the IGBT module, and the DC-LINK capacitor module needs to be cooled through the heat-conducting pad or heat-conducting silicone grease. UTILITY MODEL CONTENTS

[0005] The utility model embodiment provides a double -faced water -cooled radiator, motor controller and vehicle, aims at solving the problem of low heat dissipation efficiency of existing cooling mode, high replacement and maintenance cost.

[0006] The utility model provides a double -sided water -cooled radiator, which comprises a water -cooled substrate, the first surface of water -cooled substrate is provided with the first cooling flow channel for cooling IGBT module, the second surface of water -cooled substrate is provided with the second cooling flow channel for cooling capacitor module, and the first cooling flow channel is separated with the second cooling flow channel through the partition.

[0007] Compared with the prior art, the double-sided water-cooled radiator has the advantages that: (1) the independent water-cooled substrate is provided, if the water-cooled substrate has a problem, only the water-cooled substrate needs to be replaced, and the controller box as a whole does not need to be scrapped, so that the maintenance and replacement cost is greatly reduced, and the resource waste phenomenon is reduced; (2) the cooling flow channels are arranged on the opposite two surfaces of the water-cooled substrate, the IGBT module and the capacitor module are cooled respectively and simultaneously, the cooling and heat dissipation effect of the controller is improved, and the normal play of the motor controller function is ensured.

[0008] In combination with the first aspect, in an implementable manner, the partition is provided with branch water inlets and branch water outlets that communicate the first cooling flow channel and the second cooling flow channel, the branch water inlets are close to the cooling water inlets, and the branch water outlets are close to the cooling water outlets; the cooling water inlets and the cooling water outlets are arranged on the second surface of the water-cooled substrate, the cooling water inlets directly communicate with the first cooling flow channel, and the cooling water inlets communicate with the second cooling flow channel through the branch water inlets. The branch water inlets and the branch water outlets are arranged on the partition, and the two cooling flow channels are connected in parallel in the water-cooled substrate, compared with the cooling water inlets or the cooling water outlets arranged respectively for the two cooling flow channels, the structure can be simplified, and the integration and miniaturization of the device can be realized.

[0009] In combination with the first aspect, in an implementable manner, the first cooling flow channel is a first water-containing groove opened on the first surface, the IGBT module is fixed on the first surface through a first mounting structure and seals the first cooling flow channel;

[0010] The second cooling flow channel is a second water-containing groove opened on the second surface, and the capacitor module is fixed on the second surface through a second mounting structure and seals the second cooling flow channel. The IGBT module and the capacitor module of the application block the water-containing groove, which can directly contact with the cooling liquid, and such a design greatly improves the cooling and heat dissipation effect.

[0011] In combination with the first aspect, in an implementable mode, the first face is provided with a first sealing groove surrounding the first cooling flow channel, and the first sealing groove is provided with a first sealing ring; and the second face is provided with a second sealing groove surrounding the second cooling flow channel, and the second sealing groove is provided with a second sealing ring. The sealing rings are used for sealing to avoid leakage of the cooling liquid.

[0012] In combination with the first aspect, in an implementable mode, the second cooling flow channel is provided with a plurality of heat dissipation fins, which can disperse the water flow and reduce vortex phenomenon, and ensure the flow of the cooling liquid.

[0013] In combination with the first aspect, in an implementable mode, the first mounting structure includes a first positioning hole provided on the first face and a plurality of first mounting holes surrounding the first cooling flow channel.

[0014] The second mounting structure includes a second positioning hole provided on the second face and a plurality of second mounting holes surrounding the second cooling flow channel, so as to realize mounting and dismounting of the IGBT module and the capacitor module.

[0015] In combination with the first aspect, in an implementable mode, the cooling water inlet is provided with a water inlet connector, and the cooling water outlet is provided with a water outlet connector, so as to realize quick plug-in mounting with a counterpart such as a water pipe, and the mounting steps and fixing screws or other auxiliary materials such as gaskets and sealing rings are omitted.

[0016] In combination with the first aspect, in an implementable mode, the water-cooled base plate is provided with a water temperature detector, and the water temperature detector is arranged close to the cooling water outlet to detect the return water temperature, judge the cooling and heat dissipation effect, and ensure the reliability of the cooling and heat dissipation effect.

[0017] In the second aspect, the utility model embodiment further provides a motor controller, including the double-sided water-cooled radiator.

[0018] In the third aspect, the utility model embodiment further provides a vehicle, including the motor controller.

[0019] The motor controller and the vehicle provided by the utility model have the advantages that the radiator is independently arranged and can be replaced individually, the maintenance cost and the maintenance strength are greatly reduced, the cooling flow channels arranged on the two sides can cool the IGBT module and the capacitor module at the same time, and the heat dissipation efficiency of the motor controller is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 FIG. 1 is a structural schematic view of a first cooling flow channel on a first face of a double-sided water-cooled radiator provided by the utility model embodiment;

[0021] Figure 2 The structure schematic view of the second cooling flow channel on the second surface of the double-sided water-cooled radiator is provided for the embodiment of the utility model;

[0022] Figure 3 The explosion structure schematic view of the double-sided water-cooled radiator, IGBT module and capacitor module is provided for the embodiment of the utility model;

[0023] Figure 4 The cooling liquid flow direction schematic view of the double-sided water-cooled radiator is provided for the embodiment of the utility model;

[0024] Mark explanation:

[0025] 1, first cooling flow channel; 2, first sealing groove; 3, first positioning hole; 4, first mounting hole; 5, partition; 6, branch water inlet; 7, branch water outlet; 8, inner side water inlet; 9, inner side water outlet; 10, water temperature detector; 11, second cooling flow channel; 12, radiating tooth; 13, second sealing groove; 14, water inlet connector; 15, water outlet connector; 16, second mounting hole; 17, second positioning hole; 18, IGBT module; 19, capacitor module; 20, water-cooled base plate; 21, water inlet cavity; 22, water outlet cavity; 23, cooling water inlet; 24, cooling water outlet. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical schemes and beneficial effects to be solved by the utility model more clearly understood, the utility model will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0027] In the present application, terms such as "first", "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantity, primary or secondary or order relationship between the entities or operations.

[0028] In addition, in the description of the embodiments of the present application, the meaning of "multiple" is more than two (including two), and similar expressions related to "multiple" are also understood in this way, for example, "multiple groups", "multiple times" and the like, unless otherwise explicitly and specifically limited.

[0029] Please see Figures 1 to 3The double-face water-cooled radiator is provided by the utility model, and compared with the prior art, has the beneficial effects that (1) the independent water-cooled base plate 20 is arranged, if the water-cooled base plate 20 has a problem, only the water-cooled base plate 20 needs to be replaced, and the controller box body does not need to be scrapped as a whole, so that the maintenance and replacement cost is greatly reduced, and the resource waste phenomenon is reduced; (2) the cooling flow channels are arranged on the opposite two faces of the water-cooled base plate 20, the IGBT module 18 can be directly cooled, and the capacitor module 19 can also be directly cooled, compared with the heat-conducting pad or the heat-conducting silicone grease, due to the flowability of the cooling liquid, the double-face water-cooled radiator has a better heat dissipation effect, the heat dissipation efficiency of the capacitor module 19 is improved, so that the cooling and heat dissipation effect of the controller can be improved, and the normal play of the motor controller function is ensured; (3) the independently arranged water-cooled base plate 20 can be formed by injection molding or can be made of a corrosion-resistant steel plate, compared with the controller box body, the independently arranged water-cooled base plate 20 is light in weight and is convenient to disassemble and replace.

[0030] The double-face water-cooled radiator provided by the utility model has the beneficial effects that (1) the independent water-cooled base plate 20 is arranged, if the water-cooled base plate 20 has a problem, only the water-cooled base plate 20 needs to be replaced, and the controller box body does not need to be scrapped as a whole, so that the maintenance and replacement cost is greatly reduced, and the resource waste phenomenon is reduced; (2) the cooling flow channels are arranged on the opposite two faces of the water-cooled base plate 20, the IGBT module 18 can be directly cooled, and the capacitor module 19 can also be directly cooled, compared with the heat-conducting pad or the heat-conducting silicone grease, due to the flowability of the cooling liquid, the double-face water-cooled radiator has a better heat dissipation effect, the heat dissipation efficiency of the capacitor module 19 is improved, so that the cooling and heat dissipation effect of the controller can be improved, and the normal play of the motor controller function is ensured; (3) the independently arranged water-cooled base plate 20 can be formed by injection molding or can be made of a corrosion-resistant steel plate, compared with the controller box body, the independently arranged water-cooled base plate 20 is light in weight and is convenient to disassemble and replace.

[0031] It can be understood that the shapes, structures or the surface areas of the cooling flow channels on the two faces of the water-cooled base plate 20 can be the same or different; the cooling flow channels on the two faces can be water-containing grooves with open mouths arranged in the water-cooled base plate 20 or can be water-containing grooves arranged on the two faces of the water-cooled base plate 20.

[0032] The first cooling flow channel 1 and the second cooling flow channel 11 can share the cooling water inlet and the cooling water outlet, or the cooling water inlet and the cooling water outlet can be arranged respectively. During cooling, the cooling liquid enters the first cooling flow channel 1 and the second cooling flow channel 11 from the cooling water inlet, and the backwater after heat exchange is discharged from the cooling water outlet, and the backwater can re-enter the cooling water inlet after being cooled by the heat exchanger to participate in the cooling and heat dissipation of the controller.

[0033] It should be further explained that the cooling medium of the application is not limited to water, and other cooling liquid or cooling gas can be used for circulating cooling and heat dissipation.

[0034] In some embodiments, referring to Figure 1 and Figure 2 , Figure 4As shown, the partition plate 5 is provided with a branch inlet 6 and a branch outlet 7 which communicate the first cooling flow channel 1 and the second cooling flow channel 11, the branch inlet 6 is close to the cooling inlet, and the branch outlet 7 is close to the cooling outlet; the cooling inlet and the cooling outlet are both arranged on the second surface of the water-cooled base plate 20, and the cooling inlet directly communicates with the first cooling flow channel 1 and communicates with the second cooling flow channel 11 through the branch inlet 6.

[0035] Figure 4 A schematic diagram of the flow direction of the cooling liquid in the cooling flow channel is given, the two cooling water channels share the cooling inlet and the cooling outlet, the cooling liquid entering through the cooling inlet is branched into two parallel cooling flow channels, one of which cools the IGBT module 18 through the first cooling flow channel 1, and the other of which cools the capacitor module 19 through the second cooling flow channel 11 through the branch inlet 6, and finally the cooling liquid after heat exchange is converged to the cooling outlet and discharged from the cooling outlet.

[0036] During cooling, the cooling liquid enters the first cooling flow channel 1 from the cooling inlet 23 to cool the IGBT module 18 installed on the first surface of the water-cooled base plate 20; at the same time, the cooling liquid also enters the second cooling flow channel 11 through the branch inlet 6 on the partition plate 5 to cool the capacitor module 19, and the backwater after cooling and heat exchange in the second cooling flow channel 11 enters the first cooling flow channel 1 through the branch outlet 7, and then is discharged through the cooling outlet 24 after being combined with the backwater in the first cooling flow channel 1; the cooling liquid simultaneously cools the IGBT module 18 and the capacitor module 19, and the cooling time of the two modules does not have a large delay, thereby improving the cooling effect of the controller.

[0037] The branch inlet 6 and the branch outlet 7 on the partition plate 5 can be adjusted in size by simulating the power consumption of the IGBT module 18 and the module (the capacitor module 19 in the application is mainly for DC-LINK capacitor) to obtain the cooling temperature requirement of the IGBT module 18 and the DC-LINK capacitor module 19 for the cooling liquid flow, so as to realize balanced heat dissipation. The volume and surface area of the first cooling flow channel 1 and the second cooling flow channel 11 can also be determined by this method to realize balanced heat dissipation.

[0038] In the application, the surface area surrounded by the orthographic projection of the first cooling water channel on the first surface for cooling the IGBT module 18 is greater than the surface area surrounded by the orthographic projection of the second cooling water channel on the first surface for cooling the capacitor module 19, and the orthographic projection of the second cooling water channel falls within the orthographic projection of the first cooling water channel. That is, the cooling water capacity and cooling efficiency of the first cooling water channel are greater than those of the capacitor module 19. The principle of this design is that the IGBT module 18 and the DC-LINK capacitor module 19 have different functions and effects in the motor controller, and different powers. Specifically as follows:

[0039] IGBT (Insulated Gate Bipolar Transistor), full name Insulated Gate Bipolar Transistor, is a high-performance power semiconductor device, mainly used in the field of power electronics. IGBT is a high-power power electronic device with high frequency, high voltage, large current and other characteristics, easy to turn on and off. It can convert DC power into AC voltage, directly control the core indicators such as AC-DC conversion and power regulation of the whole vehicle. The performance of IGBT directly affects the release speed of electric vehicle power and the energy use efficiency of the whole vehicle.

[0040] DC-Link capacitor, also known as DC-Link capacitor, is a category of film capacitors, which is a kind of passive device. DC-LINK capacitor, also known as DC-Link capacitor, is a capacitor that can withstand DC voltage while maintaining its capacitance characteristics. It has the characteristics of long service life, high voltage resistance, low equivalent series resistance, high capacitance value, and can play the role of overvoltage protection, voltage fluctuation smoothing, filtering and energy buffering.

[0041] DC-Link capacitor is widely used in photovoltaic, wind power, inverter, frequency converter, switching power supply, SVG, UPS, induction heating and other types of power electronic equipment. Its main function is to connect the DC chain between the rectifier and the inverter, used to filter the voltage transients caused by the inverter, while also helping to smooth the output DC waveform. In addition, DC-Link capacitor can also absorb the high-amplitude pulsed current from the inverter to the "DC-Link", prevent high-amplitude pulsed voltage on the impedance of "DC-Link", and keep the voltage fluctuation on the DC bus within the allowed range, thereby preventing the influence of voltage overshoot and transient overvoltage on IGBT.

[0042] In the powertrain system of electric vehicles, DC-LINK capacitor smooths voltage and current to ensure stable operation of the system. It is widely used in the inverter of hybrid or pure electric vehicles, playing the role of voltage conversion and energy buffering.

[0043] Therefore, in the design of the present application, the cooling water channel heat dissipation area of the IGBT module 18 is larger than that of the capacitor module 19, the first cooling flow channel 1 is the main heat dissipation structure, and the IGBT module 18 is cooled and dissipated, and the second cooling flow channel 11 is the auxiliary heat dissipation structure, and the capacitor module 19 is cooled, so as to realize the heat dissipation balance of the devices in the motor controller.

[0044] In some embodiments, referring to Figures 1 to 4As shown, the first cooling flow channel 1 is a first water containing groove opened on the first surface, the IGBT module 18 is fixed on the first surface through the first mounting structure and seals the first cooling flow channel 1; the second cooling flow channel 11 is a second water containing groove opened on the second surface, the capacitor module 19 is fixed on the second surface through the second mounting structure and seals the second cooling flow channel 11. The water containing groove is used as the cooling flow channel in the application, and the water containing groove can contain more cooling liquid in unit area, so that more cooling liquid participates in the cooling and heat dissipation process in unit time, thereby greatly improving the cooling and heat dissipation efficiency.

[0045] The IGBT module 18 and the capacitor module 19 of the application both seal the water containing groove and can directly contact with the cooling liquid, and such design also greatly improves the cooling and heat dissipation effect.

[0046] The volume and surface area of the first water containing groove are greater than those of the second water containing groove in the specific structure of the cooling of the IGBT module 18 and the capacitor module 19, so as to realize balanced heat dissipation of different modules.

[0047] Referring to Figure 4 As shown, when cooling, the cooling liquid enters the first water containing groove from the cooling water inlet, part of the cooling liquid flowing into the first water containing groove flows into the second water containing groove through the branch water inlet 6, after the cooling liquid fills the second water containing groove, the excess cooling liquid flows into the first water containing groove again through the branch water outlet 7 and is discharged from the cooling water outlet together with the cooling liquid in the first water containing groove; the cooling liquid can simultaneously cool the IGBT module 18 and the capacitor module 19, and the cooling time of the two modules will not be greatly delayed.

[0048] The water containing groove with large open area is the embodiment 1 of the first cooling flow channel 1, and the embodiment of the first cooling flow channel 1 can also be the embodiment 2, the first cooling flow channel 1 is a plurality of linear grooves arranged in a grid shape and arranged on the first surface of the water cooling base plate 20 and connected in parallel between the cooling water inlet and the cooling water outlet; the embodiment 3, the first cooling flow channel 1 is a labyrinth groove arranged on the first surface of the water cooling base plate 20, the shape of the labyrinth groove can be S-shaped, back-shaped or spiral-shaped, etc. without limitation, by increasing the length of the cooling flow channel in the limited space, the time length of the cooling liquid staying in the cooling flow channel is increased, and the heat dissipation effect is improved.

[0049] Similarly, the second cooling flow channel 11 can also be designed with reference to the first cooling flow channel 1.

[0050] Of course, in order to improve the flow cycle speed of the cooling liquid, the branch water inlet 6 and the branch water outlet 7 of the application are designed as long-hole-shaped and parallelly arranged; the cooling water inlet and the cooling water outlet of the application are arranged on the surface of the water-cooled substrate 20, in order to be able to be quickly plugged with external water pipes, therefore the water inlet joint 14 and the water outlet joint 15 are integrally formed on the water-cooled substrate 20, and the water inlet cavity 21 directly connected with the cooling water inlet and the water outlet cavity 22 directly connected with the cooling water outlet are arranged inside the water-cooled substrate 20, the long-hole-shaped inner water inlet 8 is arranged at the communication position of the water inlet cavity 21 and the first cooling flow channel 1, and the long-hole-shaped inner water outlet 9 is arranged at the communication position of the water outlet cavity 22 and the second cooling flow channel 11.

[0051] The partition plate 5 can be integrally formed with the water-cooled substrate 20, for example, grooves or holes are arranged on both surfaces of the water-cooled substrate 20 as cooling flow channels, and the middle reserved part is the partition plate 5; the partition plate 5 can also be separately arranged and then mounted on the water-cooled substrate 20 to separate the cooling flow channels on both surfaces, for example, the middle part of the water-cooled substrate 20 is hollowed out, and the partition plate 5 is fixed at the hollowed-out position, so that water-containing grooves are formed on both surfaces of the water-cooled substrate 20; at this time, if the cooling flow channel adopts a character-shaped or S-shaped structure, it can be directly formed on the partition plate 5. The separately arranged partition plate 5 part can be fixed on the water-cooled substrate 20 by welding, gluing or bolt connection.

[0052] In some embodiments, as shown in Figures 1 to 4 , the first surface is provided with the first sealing groove 2 surrounding the first cooling flow channel 1, and the first sealing groove 2 is provided with the first sealing ring; the second surface is provided with the second sealing groove 13 surrounding the second cooling flow channel 11, and the second sealing groove 13 is provided with the second sealing ring. Since the IGBT module 18 and the capacitor module 19 also serve as sealing components of the cooling flow channel, in order to avoid leakage of the cooling liquid, the sealing ring needs to be used for sealing during installation of the IGBT module 18 and the capacitor module 19, so as to avoid leakage of the cooling liquid.

[0053] In some embodiments, as shown in Figure 2 and Figure 4 , the second cooling flow channel 11 is provided with a plurality of heat dissipation teeth 12. The plurality of heat dissipation teeth 12 are arranged in a rectangular array or a circular array; the shape of the heat dissipation teeth 12 can be cylindrical, polygonal pyramid, polygonal prism or hollow column, which can disperse the water flow, reduce the occurrence of vortex phenomenon and ensure the flow of the cooling liquid.

[0054] In some embodiments, as shown in Figures 1 to 2As shown, the first mounting structure includes first positioning holes 3 arranged on the first surface and a plurality of first mounting holes 4 arranged around the first cooling flow channel 1; the positioning holes are arranged to facilitate positioning when the IGBT module 18 is mounted, and internal threads or internal nut sleeves can be arranged in the mounting holes to enable the IGBT module 18 to be directly fixed on the water-cooled base plate 20 through bolts; similarly, the second mounting structure includes second positioning holes 17 arranged on the second surface and a plurality of second mounting holes 16 arranged around the second cooling flow channel 11.

[0055] In some embodiments, referring to Figures 1 to 4 As shown, the cooling water inlet is provided with a water inlet connector 14, and the cooling water outlet is provided with a water outlet connector 15. The water inlet connector 14 and the water outlet connector 15 can be integrally arranged on the water-cooled base plate 20, and the water inlet connector 14 and the water outlet connector 15 are both quick connectors, which can be quickly connected with the counterpart connectors, thereby eliminating the installation steps of the inlet and outlet connectors and the fixing screws or other auxiliary materials such as gaskets and sealing rings; alternatively, the water inlet connector 14 and the water outlet connector 15 can be welded on the water-cooled base plate 20 to enable quick connection with the water pipes.

[0056] In some embodiments, referring to Figures 1 to 4 As shown, the water-cooled base plate 20 is provided with a water temperature detector 10 arranged near the cooling water outlet to detect the return water temperature and determine the cooling effect to ensure the reliability of the cooling effect.

[0057] In the above embodiments, the description of each embodiment focuses on different aspects, and the parts not described or recorded in a certain embodiment can be referred to the related description of other embodiments.

[0058] Based on the same inventive concept, the embodiments of the present application also provide an electric motor controller including the double-sided water-cooled radiator. The IGBT module 18 is fixed on the first surface of the water-cooled base plate 20 through bolts and sealed through the first sealing ring; and the capacitor module 19 is fixed on the second surface of the water-cooled base plate 20 through bolts and sealed through the second sealing ring.

[0059] The electric motor controller provided by the present application has the advantages that the radiator is independently arranged and can be replaced individually, thereby greatly reducing the maintenance cost and the maintenance intensity; and the double-sided cooling flow channels can simultaneously cool the IGBT module 18 and the capacitor module 19, thereby improving the heat dissipation efficiency of the electric motor controller.

[0060] Based on the same inventive concept, the embodiments of the present application also provide a vehicle including the electric motor controller.

[0061] The vehicle provided by the utility model has the double-sided cooling radiator for the motor controller, thereby greatly reducing the maintenance cost of the motor controller, the double-sided cooling flow channel can simultaneously cool the IGBT module 18 and the capacitor module 19, the heat dissipation efficiency of the motor controller is improved, and the use performance of the whole vehicle is improved.

[0062] The above merely describes the preferred embodiments of the utility model, and is not intended to limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A double-sided water-cooled heat sink, characterized by, The application relates to a double-face water-cooling radiator for an electric motor controller. The double-face water-cooling radiator comprises a water-cooling base plate (20), a first cooling flow channel (1) arranged on a first face of the water-cooling base plate (20) for cooling an IGBT module (18), a second cooling flow channel (11) arranged on a second face of the water-cooling base plate (20) opposite to the first face for cooling a capacitor module (19), and a partition plate (5) separating the first cooling flow channel (1) from the second cooling flow channel (11).

2. The dual-sided water-cooled heat sink of claim 1, wherein, The partition plate (5) is provided with a branch water inlet (6) and a branch water outlet (7) for connecting the first cooling flow channel (1) and the second cooling flow channel (11), the branch water inlet (6) is close to the cooling water inlet, and the branch water outlet (7) is close to the cooling water outlet.

3. The dual-sided water-cooled heat sink of claim 1, wherein, The first cooling flow channel (1) is a first water-containing groove arranged on the first face, the IGBT module (18) is fixed on the first face through a first mounting structure and seals the first cooling flow channel (1). The second cooling flow channel (11) is a second water-containing groove arranged on the second face, and the capacitor module (19) is fixed on the second face through a second mounting structure and seals the second cooling flow channel (11).

4. The dual-sided water-cooled heat sink of claim 3, wherein, The first face is provided with a first sealing groove (2) surrounding the first cooling flow channel (1), and the first sealing groove (2) is provided with a first sealing ring.

5. The dual-sided water-cooled heat sink of claim 3, wherein, The second cooling flow channel (11) is provided with a plurality of heat dissipation teeth (12).

6. The dual-sided water-cooled heat sink of claim 3, wherein, The first mounting structure comprises a first positioning hole (3) arranged on the first face and a plurality of first mounting holes (4) arranged around the first cooling flow channel (1). The second mounting structure comprises a second positioning hole (17) arranged on the second face and a plurality of second mounting holes (16) arranged around the second cooling flow channel (11).

7. The dual-sided water-cooled heat sink of claim 1, wherein, The cooling water inlet is provided with a water inlet joint (14), and the cooling water outlet is provided with a water outlet joint (15).

8. The dual-sided water-cooled heat sink of claim 1, wherein, The water-cooling base plate (20) is provided with a water temperature detector (10) arranged close to the cooling water outlet.

9. An electric machine controller characterized by The application further discloses a double-face water-cooling radiator comprising the double-face water-cooling radiator.

10. A vehicle characterized by comprising: The application further discloses an electric motor controller comprising the double-face water-cooling radiator.

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