A controller and an electric vehicle
By employing a stacked configuration and an insulating film design in the controller, the problem of excessive controller size has been solved, resulting in a smaller controller with higher power density, suitable for electric vehicles.
Patent Information
- Application Number
- CN202210002165.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-01-04
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2042-01-04
AI Technical Summary
Existing controllers are too large to meet the size and power density requirements of electric vehicles.
The heat sink, power module, capacitor assembly, copper busbars and control board are stacked inside the housing, and insulation between the copper busbars is achieved through an insulating film, reducing the insulation distance and resulting in a compact structure.
It effectively reduces the size of the controller, increases power density, and meets the development needs of electric vehicles.
Smart Images
Figure CN114498223B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The embodiment of the present application relates to the technical field of controller, in particular to a controller and electric vehicle. BACKGROUND
[0002] With the new energy of various vehicles and the popularization of the electricization of low-speed electric vehicles including electric forklifts, electric tractors, logistics and storage vehicles, golf carts, electric sightseeing vehicles, electric sanitation vehicles, electric patrol vehicles, and electric walking vehicles for the elderly, electric vehicles have higher requirements on volume, cost, energy consumption efficiency, etc.
[0003] In the process of implementing the embodiment of the present application, the inventor found that: with the development of electric vehicles, the requirements on the volume and product power density of the controller are also increasing, but the volume of the current controller is still large, which cannot meet the needs of the development of electric vehicles. SUMMARY
[0004] The technical problem solved by the embodiment of the present application is to provide a controller and electric vehicle, which can reduce the volume.
[0005] To solve the above technical problems, one technical scheme adopted by the present application is to provide a controller, which comprises: a shell, a radiator, a power module, a capacitor assembly, a first copper bar, a second copper bar, a third copper bar, a control board, a first insulating film, a second insulating film and a third insulating film. The shell is provided with a receiving cavity. The radiator is arranged in the receiving cavity. The power module is arranged on the radiator, and the power module comprises a plurality of power devices. The capacitor assembly is arranged in the receiving cavity. The first copper bar is arranged in the receiving cavity, and the first copper bar is connected with the power module and the capacitor assembly respectively. The second copper bar is arranged in the receiving cavity, and the second copper bar is connected with the power module and the capacitor assembly respectively. The third copper bar is arranged in the receiving cavity, and the third copper bar is connected with the power module. The control board is arranged in the receiving cavity, and the control board is connected with the pins of the plurality of power devices. The first insulating film is arranged between the first copper bar and the second copper bar. The second insulating film is arranged between the second copper bar and the third copper bar. The third insulating film is arranged between the third copper bar and the control board.
[0006] Optionally, a surface of the shell facing the capacitor assembly is provided with a plug hole. The controller further comprises a plug, one end of the plug being used for connecting a power supply, and the other end of the plug being used for plugging into the plug hole and being connected with the input positive copper bar and the input negative copper bar of the capacitor assembly.
[0007] Optionally, the plug-in part comprises a positive electrode terminal, a negative electrode terminal, a positive electrode end and a negative electrode end, the positive electrode terminal is connected with the positive electrode end, the negative electrode terminal is connected with the negative electrode end, the positive electrode end is used for connecting with the input positive copper bar of the capacitor assembly, and the negative electrode end is used for connecting with the input negative copper bar of the capacitor assembly.
[0008] Optionally, the capacitor assembly comprises a capacitor shell, the input positive copper bar and the input negative copper bar of the capacitor assembly are arranged on a first surface of the capacitor shell. The first surface is provided with a first nut hole and a second nut hole in the direction of the input positive copper bar and the input negative copper bar respectively, and the input positive copper bar and the input negative copper bar are respectively provided with a first through hole and a second through hole corresponding to the first nut hole and the second nut hole. The capacitor assembly further comprises a first nut, a second nut, a first screw and a second screw, the first nut and the second nut are arranged in the first nut hole and the second nut hole respectively, the first screw is used for being plugged into the first through hole and being screwed to the first nut, and the second screw is used for being plugged into the second through hole and being screwed to the second nut.
[0009] Optionally, the capacitor shell further comprises a second surface and a third surface, the first surface, the second surface and the third surface are perpendicular to each other, and the direction of the first surface is parallel to the direction of the cavity bottom of the accommodation cavity. The input positive copper bar is provided with a first bending part and a second bending part, the two ends of the first bending part are attached to the first surface and the second surface respectively, and the second bending part is attached to the second surface and the third surface respectively.
[0010] Optionally, the first copper bar, the first insulating film, the second copper bar, the second insulating film, the third copper bar, the third insulating film and the control board are respectively provided with a first pin hole, a second pin hole, a third pin hole, a fourth pin hole, a fifth pin hole, a sixth pin hole and a seventh pin hole corresponding to the pins of the plurality of power devices, and the pins of the plurality of power devices are connected with the control board after penetrating through the first pin hole, the second pin hole, the third pin hole, the fourth pin hole, the fifth pin hole, the sixth pin hole and the seventh pin hole.
[0011] Optionally, the controller further comprises a support and a first fixing nail, the support is used for fixing the third copper bar, the shell is provided with a first fixing column, the support is provided with a first fixing hole, and the fixing nail is used for being plugged into the first fixing hole and the first fixing column to realize the fixation of the support.
[0012] Optionally, the support is provided with a fourth connecting hole, the third copper bar is provided with a fifth connecting hole, and the controller further comprises a third connecting nail, the third connecting nail is used for being plugged into the fifth connecting hole and the fourth connecting hole.
[0013] Optionally, the shell is provided with a liquid inlet, a cooling groove, a liquid pipeline and a liquid outlet, and the liquid inlet, the cooling groove, the liquid pipeline and the liquid outlet are connected in series.
[0014] According to an aspect of an embodiment of the present application, there is provided an electric vehicle, comprising the controller according to any one of the above.
[0015] The controller provided by the embodiment of the present application has the following advantages: different from the prior art, the controller comprises a shell, a radiator, a power module, a capacitor assembly, a first copper bar, a second copper bar, a third copper bar, a control board, a first insulating film, a second insulating film and a third insulating film. The shell is provided with a receiving cavity. The radiator is arranged in the receiving cavity. The power module is arranged on the radiator, and the power module comprises a plurality of power devices. The capacitor assembly is arranged in the receiving cavity. The first copper bar is arranged in the receiving cavity, and the first copper bar is connected with the power module and the capacitor assembly respectively. The second copper bar is arranged in the receiving cavity, and the second copper bar is connected with the power module and the capacitor assembly respectively. The third copper bar is arranged in the receiving cavity, and the third copper bar is connected with the power module. The control board is arranged in the receiving cavity, and the control board is connected with the pins of the plurality of power devices. The first insulating film is arranged between the first copper bar and the second copper bar. The second insulating film is arranged between the second copper bar and the third copper bar. The third insulating film is arranged between the third copper bar and the control board. In this way, the insulating distance between the copper bars is avoided, and the volume of the controller is effectively reduced. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed in the following description of the embodiments or the prior art will be briefly introduced. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.
[0017] Figure 1 is a perspective view of the controller provided by an embodiment of the present application;
[0018] Figure 2 is an exploded view of the controller provided by an embodiment of the present application;
[0019] Figure 3 is a schematic view of the shell of the controller provided by an embodiment of the present application;
[0020] Figure 4 is a schematic view of the radiator of the controller provided by an embodiment of the present application;
[0021] Figure 5 is a schematic diagram of a power module in a controller according to an embodiment of the present application;
[0022] Figure 6 is a schematic diagram of a capacitor assembly in a controller according to an embodiment of the present application;
[0023] Figure 7 is a schematic diagram of a connector in a controller according to an embodiment of the present application.
[0024] Reference signs in the detailed description of the embodiments are listed as follows:
[0025]
[0026] DETAILED DESCRIPTION
[0027] In order to facilitate the understanding of the present application, the present application will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element or one or more intervening elements can be present therebetween. When an element is described as being "connected to" another element, it can be directly connected to the other element or one or more intervening elements can be present therebetween. The terms "vertical", "horizontal", "left", "right", and similar expressions used in the present specification are for the purpose of illustration only.
[0028] Unless otherwise defined, all technical and scientific terms used in the present specification are the same as those commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the present specification includes any and all combinations of one or more of the relevant listed items.
[0029] Reference is made to Figure 1 and Figure 2The controller 100 provided by the embodiment of the present application comprises a shell 10, a radiator 20, a power module 30, a capacitor assembly 40, a first copper bar 50, a second copper bar 60, a third copper bar 70, a first insulating film 80, a second insulating film 90, a third insulating film 100, a control board 110 and a plug 120. The radiator 20, the power module 30, the capacitor assembly 40, the first copper bar 50, the second copper bar 60, the third copper bar 70, the first insulating film 80, the second insulating film 90, the third insulating film 100 and the control board 110 are arranged in the shell 10. The radiator 20, the power module 30, the first copper bar 50, the first insulating film 80, the second copper bar 60, the second insulating film 90, the third copper bar 70, the third insulating film 100 and the control board 110 are arranged in layers in the shell 10, and the capacitor assembly 40 is arranged on one side of the shell 10. The radiator 20 is used for dissipating heat of other components of the controller 100. The first copper bar 50, the second copper bar 60 and the third copper bar 70 are used for connecting three phases of the power module 30. The first insulating film 80, the second insulating film 90 and the third insulating film 100 are arranged between the first copper bar 50 and the second copper bar 60, between the second copper bar 60 and the third copper bar 70 and between the third copper bar 70 and the control board 110 respectively, so as to achieve an insulating effect, and the first copper bar 50 and the second copper bar 60, the second copper bar 60 and the third copper bar 70 and the third copper bar 70 and the control board 110 do not need to be arranged at an insulating distance, thereby reducing the volume of the controller 100. The plug 120 is used for connecting the capacitor assembly and an external power supply. One end of the plug 120 is plugged into the shell 10 to connect the capacitor assembly 40, and the other end is used for connecting the power supply.
[0030] For the shell 10, as shown in Figure 3 the shell 10 is provided with a receiving cavity 11, and the radiator 20, the power module 30, the capacitor assembly 40, the first copper bar 50, the second copper bar 60, the third copper bar 70, the first insulating film 80, the second insulating film 90, the third insulating film 100 and the control board 110 are arranged in the receiving cavity 11.
[0031] For the radiator 20, as shown in Figure 4 the radiator 20 comprises a radiator body 21 and a plurality of radiating teeth 22 extending from the radiator body 21. The plurality of radiating teeth 22 are arranged on one surface of the radiator body 21 and used for accelerating heat dissipation.
[0032] In some embodiments, please refer to Figure 3The housing 10 is provided with a cooling groove 12 facing the accommodating cavity 11, and a plurality of heat dissipation teeth 22 are accommodated in the cooling groove 12, and the heat sink body 21 covers the groove opening of the cooling groove 12. It can be understood that the housing 10 is also provided with a liquid inlet 13, a liquid pipeline 14 and a liquid outlet 15, which are connected in communication. When the cooling liquid enters the cooling groove 12 through the liquid inlet 13, the cooling liquid takes away the heat on the plurality of heat dissipation teeth 22, and then the cooling liquid flows out through the liquid pipeline 14 and the liquid outlet 15.
[0033] In some embodiments, please combine Figure 3 The heat sink body 21 is provided with a first connecting hole 211 around, and the second connecting hole 16 corresponding to the first connecting hole 211 is arranged around the groove opening of the accommodating groove. The controller 100 further includes a first connecting pin (not shown in the figure), and the first connecting pin is used for being inserted into the first connecting hole 211 and the second connecting hole 16, so as to fix the heat sink 20 to the housing 10.
[0034] In some embodiments, the heat sink 20 is made of aluminum material. Of course, the manufacturing material of the heat sink 20 is not limited thereto, and as long as it has good heat dissipation performance, such as copper material, silica gel material, etc.
[0035] For the above-mentioned power module 30, as shown in Figure 5 The power module 30 includes a plurality of power devices 31, and the power device 31 is provided with a pin 311.
[0036] And the power module 30 is provided with a first welding surface 32, a second welding surface 33 and a third welding surface 34. Among them, one end of the first copper bar 50 is connected with the first welding surface 32, and the other end is connected with the output positive copper bar 44 of the capacitor assembly 40. One end of the second copper bar 60 is connected with the second welding surface 33, and the other end is connected with the output negative copper bar 45 of the capacitor assembly 40. The second copper bar 60 is provided with a fifth through hole 61 (as shown in Figure 2 ) corresponding to the third welding surface 34, and one end of the third copper bar 70 is connected with the third welding surface 34.
[0037] In some embodiments, the connection between the first copper bar 50, the second copper bar 60 and the third copper bar 70 and the first soldering surface 32, the second soldering surface 33 and the third soldering surface 34 is laser welding. Laser welding can connect the first copper bar 50, the second copper bar 60 and the third copper bar 70 and the first soldering surface 32, the second soldering surface 33 and the third soldering surface 34 without threaded nuts, which can reduce the preset cross-sectional area of the copper bar, save costs, and reduce the volume of the controller 100. It can be understood that the connection between the first copper bar 50, the second copper bar 60 and the third copper bar 70 and the first soldering surface 32, the second soldering surface 33 and the third soldering surface 34 is not limited to this, as long as it can achieve electrical connection, such as resistance welding, etc.
[0038] In some embodiments, the power module 30 and the heat sink 20 are filled with tin material, and the power module 30 and the heat sink 20 are welded by reflow soldering. The tin material has a large thermal conductivity, which can improve the heat dissipation performance. Using the reflow soldering process, the power module 30 can be placed on the heat sink 20 without pressing the power module 30, which can reduce the volume of the controller 100. It can be understood that when the heat sink 20 is made of aluminum material, the surface of the heat sink 20 also needs to be plated with a layer of nickel, copper or the like, so that the power module 30 can be welded to the heat sink 20.
[0039] For the above-mentioned capacitor assembly 40, as shown in Figure 6 The capacitor assembly 40 includes a capacitor shell 41 and a capacitor body, and the capacitor body is received in the capacitor shell 41. The capacitor shell 41 is provided with an input positive copper bar 42, an input negative copper bar 43, an output positive copper bar 44 and an output negative copper bar 45. The input positive copper bar 42 and the input negative copper bar 43 are used to connect with the plug-in part 120, so as to connect the power supply, and the output positive copper bar 44 and the output negative copper bar 45 are used to connect the first copper bar 50 and the second copper bar 60, so as to realize the connection with the power module 30.
[0040] For the input positive copper bar 42 and the input negative copper bar 43, the input positive copper bar 42 and the input negative copper bar 43 are arranged on the first surface 411 of the capacitor shell 41. The first surface 411 is provided with a first nut hole (not shown) and a second nut hole (not shown) facing the input positive copper bar 42 and the input negative copper bar 43, respectively. The input positive copper bar 42 and the input negative copper bar 43 are provided with a first through hole (not shown) and a second through hole (not shown) corresponding to the first nut hole and the second nut hole, respectively. In addition, the capacitor assembly 40 further comprises a first nut (not shown), a second nut (not shown), a first screw (not shown) and a second screw (not shown). The first nut and the second nut are arranged in the first nut hole and the second nut hole, respectively. The first screw is used for inserting into the first through hole and screwing into the first nut. The second screw is used for inserting into the second through hole and screwing into the second nut. When the first screw and the second screw are inserted into the insertion piece 120 and screwed into the first nut and the second nut, respectively, the fixation of the insertion piece 120 and the connection between the insertion piece 120 and the input positive copper bar 42 and the input negative copper bar 43 are achieved.
[0041] In some embodiments, the capacitor shell 41 further comprises a second surface 412 and a third surface 413. The first surface 411, the second surface 412 and the third surface 413 are perpendicular to each other. The direction of the first surface 411 is parallel to the direction of the cavity bottom of the accommodation cavity 11. The input positive copper bar 42 is provided with a first bending portion 421 and a second bending portion 422. The two ends of the first bending portion 421 are attached to the first surface 411 and the second surface 412, respectively. The second bending portion 422 is attached to the second surface 412 and the third surface 413, respectively. That is, the input positive copper bar 42 is arranged by twice bending to avoid the required insulation distance between the input positive copper bar 42 and the input negative copper bar 43, thereby reducing the volume of the controller 100.
[0042] For the output positive copper bar 44 and the output negative copper bar 45, in some embodiments, the output positive copper bar 44 and the output negative copper bar 45 are laser welded with the first copper bar 50 and the second copper bar 60, respectively. The laser welding can connect the output positive copper bar 44 and the output negative copper bar 45 with the first copper bar 50 and the second copper bar 60, respectively, without the need for threaded nuts. On the one hand, this can reduce the pre-set cross-sectional area of each copper bar and save costs. On the other hand, it can also reduce the volume of the controller 100. It can be understood that the connection mode between the output positive copper bar 44 and the output negative copper bar 45 and the first copper bar 50 and the second copper bar 60 is not limited to this, as long as it can achieve electrical connection, such as resistance welding, etc.
[0043] In some embodiments, the capacitor shell 41 is provided with a third connection hole 414 facing the cavity bottom of the accommodation cavity 11. The accommodation cavity 11 is provided with a connection groove 17. The controller 100 further comprises a second connection pin 130 (as shown in FIG. 6).Figure 1 The second connecting pin 130 is used to be inserted into the third connecting hole 414 and then screwed into the connecting groove 17, so as to fix the capacitor assembly 40 to the shell 10.
[0044] In some embodiments, the controller 100 further comprises a bracket 150 and a first fixing pin (not shown), please refer to Figure 2 The bracket 150 is used to fix the third copper bar 70. The shell 10 is provided with a first fixing column 18, and the bracket 150 is provided with a first fixing hole 1501. The first fixing pin is used to be inserted into the first fixing hole 1501 and the first fixing column 18, so as to fix the bracket 150.
[0045] It can be understood that in some embodiments, the bracket 150 is provided with a fourth connecting hole 1502, the third copper bar 70 is provided with a fifth connecting hole 71, and the controller 100 further comprises a third connecting pin (not shown). The third connecting pin is used to be inserted into the fifth connecting hole 71 and the fourth connecting hole 1502, so as to fix the third copper bar 70 to the bracket 150. It can be understood that the fourth connecting hole 1502 and the fifth connecting hole 71 are threaded holes, and the third connecting pin is screwed into the fourth connecting hole 1502 and the fifth connecting hole 71, so as to fix the third copper bar 70 to the bracket 150.
[0046] For the above-mentioned control board 110, please refer to Figure 2 The control board 110 is connected with the pins 311 of the plurality of power devices 31.
[0047] In some embodiments, the first copper bar 50, the first insulating film 80, the second copper bar 60, the second insulating film 90, the third copper bar 70, the third insulating film 100 and the control board 110 correspond to the pins 311 of the plurality of power devices 31, and are respectively provided with a plurality of first pin holes (not shown), second pin holes (not shown), third pin holes (not shown), fourth pin holes (not shown), fifth pin holes (not shown), sixth pin holes (not shown) and seventh pin holes (not shown). The pins of the plurality of power devices 31 are respectively inserted into the plurality of first pin holes, second pin holes, third pin holes, fourth pin holes, fifth pin holes, sixth pin holes and seventh pin holes, and then connected with the control board 110.
[0048] It can be understood that in some embodiments, the pins 311 of the plurality of power devices 31 are respectively inserted into the plurality of first pin holes, second pin holes, third pin holes, fourth pin holes, fifth pin holes, sixth pin holes and seventh pin holes, and then the pins 311 are soldered to the control board 110.
[0049] In some embodiments, please refer to Figure 3The housing 10 has a second fixing post 19 facing the receiving cavity 11. The third insulating film 100 and the control board 110 have a second fixing hole 1001 and a third fixing hole 1101 respectively corresponding to the second fixing post 19. The controller 100 also includes a second fixing pin 140. When the controller 100 is inserted into the third fixing hole 1101, the second fixing hole 1001 and the second fixing post 19, the third insulating film 100 and the control board 110 can be fixed.
[0050] For the aforementioned connector 120, such as Figure 7 As shown, the housing 10 has a socket 1010 (e.g., on one surface facing the capacitor assembly 40) for insertion. Figure 3 As shown), the connector 120 is inserted into the housing through the connector hole 1010.
[0051] In some embodiments, the connector 120 includes a positive terminal 1201, a negative terminal 1202, a positive terminal 1203, and a negative terminal 1204. The positive terminal 1201 is connected to the positive terminal 1203, and the negative terminal 1202 is connected to the negative terminal 1204. The positive terminal 1203 is used to connect to the input positive copper busbar 42, and the negative terminal 1204 is used to connect to the input negative copper busbar 43. When the positive and negative terminals of the external power supply are connected to the positive terminal 1201 and the negative terminal 1202 respectively, the power supply and the capacitor assembly 40 can be connected.
[0052] It should be noted that the positive terminal 1203 and the negative terminal 1204 are respectively provided with a third through hole 12031 and a fourth through hole 12041. When the first screw is inserted into the first through hole and the third through hole 12031 and then screwed into the first nut, and the second screw is inserted into the second through hole and the fourth through hole 12041 and then screwed into the second nut, the connector 120 can be fixed and the connector 120 can be connected to the capacitor assembly 40.
[0053] In some embodiments, the controller 100 further includes a seal (not shown) disposed in the insertion hole 1010 to achieve a sealing effect and prevent impurities from entering the housing 10.
[0054] The controller 100 provided by the embodiment of the present application comprises a shell 10, a radiator 20, a power module 30, a capacitor assembly 40, a first copper bar 50, a second copper bar 60, a third copper bar 70, a control board 110, a first insulating film 80, a second insulating film 90 and a third insulating film 100. The shell 10 is provided with a receiving cavity 11. The radiator 20 is arranged in the receiving cavity 11. The power module 30 is arranged on the radiator 20, and the power module 30 comprises a plurality of power devices 31. The capacitor assembly 40 is arranged in the receiving cavity 11. The first copper bar 50 is arranged in the receiving cavity 11, and the first copper bar 50 is connected with the power module 30 and the capacitor assembly 40 respectively. The second copper bar 60 is arranged in the receiving cavity 11, and the second copper bar 60 is connected with the power module 30 and the capacitor assembly 40 respectively. The third copper bar 70 is arranged in the receiving cavity 11, and the third copper bar 70 is connected with the power module 30. The control board 110 is arranged in the receiving cavity 11, and the control board 110 is connected with pins 311 of the plurality of power devices 31. The first insulating film 80 is arranged between the first copper bar 50 and the second copper bar 60. The second insulating film 90 is arranged between the second copper bar 60 and the third copper bar 70. The third insulating film 100 is arranged between the third copper bar 70 and the control board 110. In this way, the embodiment of the present application avoids the insulating distance required to be arranged between the copper bars in the prior art, and the volume of the controller 100 can be effectively reduced.
[0055] The embodiment of the present application also provides an electric vehicle, and the electric vehicle comprises the above controller 100. The controller 100 is used for realizing a motor in the electric vehicle. The structure of the controller 100 can be referred to the above embodiment, and will not be described here.
[0056] It should be noted that the specification and drawings of the present application provide the preferred embodiments of the present application, but the present application can be realized in many different forms, and is not limited to the embodiments described in the specification. These embodiments are not additional limitations on the content of the present application, and the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Furthermore, the above technical features continue to be combined with each other, forming various embodiments not listed above, which are all considered to be within the scope of the present application. Furthermore, those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes should be within the protection scope of the appended claims of the present application.
Claims
1. A controller characterized by comprising: The application relates to a controller. The controller comprises a shell provided with a receiving cavity, a radiator, a power module, a first copper bar, a first insulating film, a second copper bar, a second insulating film, a third copper bar, a third insulating film and a control board which are arranged in a laminated structure in the receiving cavity, and a capacitor assembly arranged in the receiving cavity. The capacitor assembly is located on one side of the laminated structure, and the capacitor assembly comprises a capacitor shell, input positive copper bars and input negative copper bars of the capacitor assembly are arranged on a first surface of the capacitor shell, the capacitor shell further comprises a second surface and a third surface, the first surface, the second surface and the third surface are perpendicular to each other, the direction of the first surface is parallel to the direction of the cavity bottom of the receiving cavity, the input positive copper bars are provided with a first bending part and a second bending part, the two ends of the first bending part are attached to the first surface and the second surface respectively, and the second bending part is attached to the second surface and the third surface respectively. The shell is provided with a plug hole on a surface facing the capacitor assembly, one end of a plug-in part is used for connecting a power supply and connecting the input positive copper bars and the input negative copper bars of the capacitor assembly. The first copper bar is connected with the power module and the capacitor assembly respectively, the second copper bar is connected with the power module and the capacitor assembly respectively, the third copper bar is connected with the power module, the control board is connected with the pins of a plurality of power devices, the first insulating film is arranged between the first copper bar and the second copper bar, the second insulating film is arranged between the second copper bar and the third copper bar, and the third insulating film is arranged between the third copper bar and the control board.
2. The controller according to claim 1, wherein the shell is provided with a plug hole on a surface facing the capacitor assembly. The controller further comprises a plug-in part, one end of the plug-in part is used for connecting a power supply, the other end of the plug-in part is used for plugging into the plug hole and connecting the input positive copper bars and the input negative copper bars of the capacitor assembly. The plug-in part comprises a positive terminal, a negative terminal, a positive terminal and a negative terminal, the positive terminal is connected with the positive terminal, the negative terminal is connected with the negative terminal, the positive terminal is used for connecting the input positive copper bars of the capacitor assembly, and the negative terminal is used for connecting the input negative copper bars of the capacitor assembly.
4. The controller according to claim 1, wherein the first surface is provided with a first nut hole and a second nut hole respectively facing the input positive copper bars and the input negative copper bars, and the input positive copper bars and the input negative copper bars are respectively provided with a first through hole and a second through hole corresponding to the first nut hole and the second nut hole.
3. The controller of claim 2, wherein, The capacitor assembly further comprises a first nut, a second nut, a first screw and a second screw, the first nut and the second nut are arranged in the first nut hole and the second nut hole respectively, the first screw is used for plugging into the first through hole and screwing with the first nut, and the second screw is used for plugging into the second through hole and screwing with the second nut.
5. The controller according to claim 1, wherein The first copper bar, the first insulating film, the second copper bar, the second insulating film, the third copper bar, the third insulating film and the control panel are respectively provided with a first pin hole, a second pin hole, a third pin hole, a fourth pin hole, a fifth pin hole, a sixth pin hole and a seventh pin hole corresponding to the pins of the plurality of power devices, and the pins of the plurality of power devices are connected to the control panel after passing through the first pin hole, the second pin hole, the third pin hole, the fourth pin hole, the fifth pin hole, the sixth pin hole and the seventh pin hole.
6. The controller of claim 1, wherein, The controller further comprises a support and a first fixing nail, the support is used for fixing the third copper bar, the shell is provided with a first fixing column, the support is provided with a first fixing hole, and the fixing nail is used for being inserted into the first fixing hole and the first fixing column to fix the support.
7. The controller of claim 6, wherein, The support is provided with a fourth connecting hole, the third copper bar is provided with a fifth connecting hole, and the controller further comprises a third connecting nail, which is used for being inserted into the fifth connecting hole and the fourth connecting hole.
8. The controller according to claim 1, wherein The shell is provided with a liquid inlet, a cooling groove, a liquid pipeline and a liquid outlet, and the interior space of the liquid inlet, the cooling groove and the liquid pipeline is communicated with the liquid outlet; The heat sink comprises a heat sink body and a plurality of heat sink teeth extending from the heat sink body, and the plurality of heat sink teeth are accommodated in the cooling groove, and the heat sink body covers the groove opening of the cooling groove.
9. An electric vehicle, characterized by The controller according to any one of claims 1-8.
Citation Information
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