Electronic device, controller and vehicle

Abstract

The invention provides an electronic device, a controller and a vehicle. The electronic device comprises a first connecting terminal and a second connecting terminal, the polarity of the second connecting terminal is opposite to that of the first connecting terminal, the second connecting terminal and the first connecting terminal are arranged in a spaced mode, and in a projection plane perpendicular to the thickness direction of the second connecting terminal, the projection of the first connecting terminal falls into the projection of the second connecting terminal. The first connecting terminal and the second connecting terminal are arranged in a manner that the projection of the first connecting terminal falls into the projection of the second connecting terminal in the projection plane perpendicular to the thickness direction of the second connecting terminal, so that the first connecting terminal and the second connecting terminal are arranged side by side along the length or width of the connecting terminals; therefore, the center of the first connecting terminal and the center of the second connecting terminal are closer, so that the overlapped parts of the magnetic field around the first connecting terminal and the magnetic field around the second connecting terminal are mutually offset due to opposite magnetic field directions in the electrifying process, the stray inductance is favorably reduced, and the operation stability of the electronic device is improved.

Description

Technical Field

[0001] The present application relates to the field of controller technology, and in particular to an electronic device, a controller and a vehicle. Background Art

[0002] Electronic devices, such as power modules and capacitor modules, are important components for realizing electrical functions in electronic systems. As conductors, electronic devices generate inductance and magnetic fields when current passes through them during use, resulting in stray inductance. Currently, the stray inductance generated by electronic devices is relatively large, resulting in unstable operation of electronic devices. Summary of the invention

[0003] Embodiments of the present application provide an electronic device, a controller, and a vehicle for reducing stray inductance and improving the stability of operation of the electronic device.

[0004] In order to achieve the above-mentioned purpose, according to the first aspect of the present application, there is provided an electronic device, comprising a first connecting terminal and a second connecting terminal, wherein the second connecting terminal has an opposite polarity to the first connecting terminal and is spaced apart from the first connecting terminal, and in a projection plane perpendicular to the thickness direction of the second connecting terminal, the projection of the first connecting terminal falls within the projection of the second connecting terminal.

[0005] In some embodiments, the length of the first connection terminal is the same as the length of the second connection terminal; and / or the width of the first connection terminal is smaller than the width of the second connection terminal, and the free end of the second connection terminal extends out of the free end of the first connection terminal.

[0006] In some embodiments, the electronic device further includes an insulating member at least partially disposed between the first connection terminal and the second connection terminal.

[0007] In some embodiments, the insulating member has a first surface and a second surface that are disposed opposite to each other, the first surface is in contact with the first connecting terminal, and the second surface is in contact with the second connecting terminal.

[0008] In some embodiments, the length of the insulating member is greater than or equal to the length of the first connecting terminal, and the free end of the insulating member is flush with the end of the first connecting terminal, or extends out of the free end of the first connecting terminal.

[0009] In some embodiments, the width of the insulating member is greater than or equal to the width of the first connecting terminal, and the free end of the insulating member is flush with the free end of the first connecting terminal, or extends out of the free end of the first connecting terminal.

[0010] In some embodiments, the insulating member includes a first insulating portion and a second insulating portion, the first insulating portion is disposed between the first connecting terminal and the second connecting terminal, the second insulating portion is protruded on a side of the first insulating portion facing the first connecting terminal and is located on the outer side of the first connecting terminal.

[0011] In some embodiments, the second insulating portion protrudes from a side of the first connecting terminal facing away from the second connecting terminal.

[0012] In some embodiments, the electronic device is a capacitor module, the first connection terminal is a first output end of the capacitor module, and the second connection terminal is a second output end of the capacitor module.

[0013] In some embodiments, the insulating member is provided with a first positioning portion, and the first positioning portion is configured to position the first output end; and / or the insulating member is provided with a second positioning portion, and the second positioning portion is configured to position the second output end.

[0014] In some embodiments, the electronic device is a power module, the first connection terminal is a first input terminal of the power module, and the second connection terminal is a second input terminal of the power module.

[0015] In some embodiments, there are multiple first input ends, which are spaced apart along the length direction thereof; there are multiple second input ends, which are spaced apart along the length direction thereof; and each first input end corresponds to each second input end.

[0016] In some embodiments, the insulating member is partially located between two adjacent first input terminals and / or between two adjacent second input terminals.

[0017] In some embodiments, the first connection terminal is parallel to the second connection terminal.

[0018] According to a second aspect of the present application, a controller is provided, comprising a capacitor module and a power module, the capacitor module comprising a first output terminal and a second output terminal with opposite polarities, the first output terminal and the second output terminal being spaced apart; the power module comprising a first input terminal electrically coupled to the first output terminal and a second input terminal electrically coupled to the second output terminal, the first input terminal and the second input terminal being spaced apart; wherein, in a projection plane perpendicular to a thickness direction of the first output terminal, a projection of the first output terminal falls within a projection of the second output terminal, and a projection of the first input terminal falls within a projection plane of the second input terminal.

[0019] In some embodiments, the first output terminal is parallel to the second output terminal; and / or the first input terminal is parallel to the second input terminal.

[0020] In some embodiments, the controller further comprises a first insulating member at least partially disposed between the first output terminal and the second output terminal; and / or a second insulating member at least partially disposed between the first input terminal and the second input terminal.

[0021] In some embodiments, the controller also includes a first electrical connector, one end of which is connected to the first output end and the other end is connected to the first input end, and the first output end and the first input end are electrically coupled through the first electrical connector; and / or a second electrical connector, one end of which is connected to the second output end and the other end is connected to the second input end, and the second output end and the second input end are electrically coupled through the second electrical connector.

[0022] In some embodiments, the controller further includes a third insulating member disposed between the first electrical connector and the second electrical connector.

[0023] In some embodiments, the first electrical connector is welded to the first output terminal and / or the first input terminal; and / or the second electrical connector is welded to the second output terminal and / or the second input terminal.

[0024] In some embodiments, the first electrical connector is provided with a first stress relief portion; and / or the second electrical connector is provided with a second stress relief portion.

[0025] In some embodiments, the width of the first output end is smaller than the width of the second output end, and the free end of the second output end extends beyond the free end of the first output end; and / or, the width of the first input end is smaller than the width of the second input end, and the free end of the second input end extends beyond the free end of the first input end.

[0026] In some embodiments, the controller further includes a first insulating member at least partially disposed between the first output terminal and the second output terminal.

[0027] In some embodiments, the first insulating member includes a first insulating portion and a second insulating portion, the first insulating portion is disposed between the first output end and the second output end, the second insulating portion is protruded on a side of the first insulating portion facing the first output end, and is located on a side of the first output end close to the first input end.

[0028] In some embodiments, the second insulating portion protrudes from a side of the first output end facing away from the second output end.

[0029] In some embodiments, the first insulating member is provided with a first positioning portion, and the first positioning portion is configured to position the first electrical connection member.

[0030] In some embodiments, the first positioning portion is a protrusion protruding from the first insulating member, a first positioning groove is provided at one end of the first electrical connector close to the capacitor module, and the first positioning portion is configured to be limited in the first positioning groove.

[0031] In some embodiments, the first insulating member is provided with a second positioning portion, and the second positioning portion is configured to position the second electrical connection member.

[0032] In some embodiments, the second positioning portion is a protrusion protruding from the first insulating member, a second positioning groove is provided at one end of the second electrical connector close to the capacitor module, and the second positioning portion is configured to be limited to the second positioning groove.

[0033] In some embodiments, the controller further includes a second insulating member at least partially disposed between the first input terminal and the second input terminal.

[0034] In some embodiments, the second insulating member includes a third insulating portion and a fourth insulating portion, the third insulating portion is disposed between the first input terminal and the second input terminal, and the fourth insulating portion is protruding from a side of the third insulating portion facing the first input terminal and is located on a side of the first input terminal close to the first output terminal.

[0035] In some embodiments, the fourth insulating portion protrudes from a side of the first input end facing away from the second input end.

[0036] In some embodiments, the second insulating member is provided with a third positioning portion, and the third positioning portion is configured to position the first electrical connector and / or the second electrical connector.

[0037] In some embodiments, the third positioning portion is a protrusion protruding from the second insulating member;

[0038] The first electrical connector is provided with a third positioning groove, and the third positioning portion is configured to be limitedly located in the third positioning groove; and / or,

[0039] The second electrical connector is provided with a fourth positioning groove, and the third positioning portion is configured to be limitedly located in the fourth positioning groove.

[0040] In some embodiments, the second insulating member is provided with a fourth positioning portion, and the fourth positioning portion is configured to position the first electrical connection member.

[0041] In some embodiments, the fourth positioning portion is a protrusion protruding from the second insulating member, the first electrical connector is provided with a positioning hole, and the fourth positioning portion is configured to be limited to be located in the positioning hole.

[0042] In some embodiments, the controller further includes a box having a housing, and the power module and the capacitor module are disposed in the housing.

[0043] In some embodiments, a flow channel containing a cooling medium is disposed in the box body, and the cooling medium is used to cool the power module and the capacitor module.

[0044] In some embodiments, the housing portion includes a first sub-housing portion and a second sub-housing portion, the capacitor module is disposed in the first sub-housing portion, and the power module is disposed in the second sub-housing portion; the first sub-housing portion is filled with a thermally conductive material, the capacitor module is embedded in the thermally conductive material, the capacitor module is indirectly thermally coupled to the box body through the thermally conductive material, and the first output end and the second output end are exposed from the thermally conductive material.

[0045] In some embodiments, the thermally conductive material is filled and molded in the first sub-accommodation portion.

[0046] In some embodiments, the controller also includes a heat conductor, which is arranged at the bottom of the accommodating portion, partially located between the capacitor module and the case, and partially located between the power module and the case, the capacitor module is indirectly thermally coupled to the case through the heat conductor, and the power module is indirectly thermally coupled to the case through the heat conductor.

[0047] In some embodiments, the power module further includes a heat sink, wherein the heat sink is thermally coupled to the housing.

[0048] In some embodiments, the heat sink is a heat sink pin, the housing is further provided with a plug hole communicating with the flow channel, and the heat sink pin is configured to be inserted into the plug hole to contact with the cooling medium.

[0049] In some embodiments, the box body is further provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are in communication with the flow channel.

[0050] According to a third aspect of the present application, a vehicle is provided, comprising the electronic device of any embodiment of the first aspect or the controller of any embodiment of the second aspect.

[0051] In the electronic device of the embodiment of the present application, by arranging the first connecting terminal and the second connecting terminal so that, in a projection plane perpendicular to the thickness direction of the second connecting terminal, the projection of the first connecting terminal falls within the projection of the second connecting terminal, compared to arranging the two side by side along the length or width of the connecting terminal, the center of the first connecting terminal and the center of the second connecting terminal can be closer, so that during the power-on process, the overlapping parts of the magnetic field around the first connecting terminal and the magnetic field around the second connecting terminal cancel each other out due to the opposite directions of the magnetic fields, which helps to reduce stray inductance and improve the stability of the operation of the electronic device.

[0052] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0054] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.

[0055] Figure 1 A schematic diagram of the structure of an electronic device according to some embodiments of the present application;

[0056] Figure 2 Schematic diagrams of structures of electronic devices in other embodiments of the present application;

[0057] Figure 3 A schematic diagram of the positions of the first connecting terminal and the second connecting terminal in the related art of some embodiments of the present application;

[0058] Figure 4 A schematic diagram of the positions of the first connecting terminal and the second connecting terminal in some embodiments of the present application;

[0059] Figure 5 A schematic diagram of the structure of a controller in some embodiments of the present application;

[0060] Figure 6 for Figure 5 A top view of

[0061] Figure 7 This is a schematic diagram of an exploded view of a controller according to some embodiments of the present application;

[0062] Figure 8 for Figure 7 Enlarged view of the middle C part;

[0063] Fig. 9 This is a schematic diagram of the structure of the box in some embodiments of the present application;

[0064] Fig.10 This is a schematic diagram of assembling a box and a capacitor module according to some embodiments of the present application;

[0065] Fig.11 This is a schematic diagram of the assembly of a box, a capacitor module and a baffle in some embodiments of the present application;

[0066] Fig.12 This is a schematic diagram of assembling a capacitor module and a power module according to some embodiments of the present application;

[0067] Fig.13 for Fig.12 Enlarged view of part A in the middle;

[0068] Fig.14 A top view assembly diagram of a capacitor module and a power module according to some embodiments of the present application;

[0069] Fig.15 A side view assembly diagram of a capacitor module and a power module according to some embodiments of the present application;

[0070] Fig.16 for Fig.15 Enlarged view of middle part B;

[0071] Fig.17 This is a schematic structural diagram of a capacitor module in some embodiments of the present application at a certain viewing angle;

[0072] Fig.18 A schematic diagram of the structure of a capacitor module in some embodiments of the present application from another perspective;

[0073] Fig.19 A schematic diagram of the structure of a power module in some embodiments of the present application;

[0074] Fig. 20 A schematic diagram of the structure of a first electrical connector in some embodiments of the present application;

[0075] Fig.21 This is a schematic structural diagram of a third insulating member in some embodiments of the present application;

[0076] Fig. 22 A schematic diagram of the structure of a second electrical connector in some embodiments of the present application;

[0077] Fig.23 This is a schematic diagram of the structure of the separator of some embodiments of the present application;

[0078] Fig.24This is a schematic structural diagram of a first sub-accommodating cavity filled with a heat-conducting material in some embodiments of the present application;

[0079] Description of reference numerals:

[0080] 100-controller; 10-box; 11-accommodation part; 111-first sub-accommodation part; 112-second sub-accommodation part; 12-baffle; 13-first partition; 131-avoidance groove; 14-liquid inlet; 15-liquid outlet; 16-jack; 20-capacitor module; 21-first busbar; 211-first output terminal; 212-negative power input terminal; 22-second busbar; 221-second output terminal; 222-positive power input terminal; 23-capacitor core group; 30-power module; 31-first input terminal; 32-second input terminal; 33-three-phase output terminal; 34-heat sink; 40-first insulating member; 41-first insulating part; 42-second insulating part; 43-first positioning part; 44-second positioning part; 50-second insulator Edge member; 51-third insulating part; 52-fourth insulating part; 53-third positioning part; 54-fourth positioning part; 60-first electrical connector; 61-first overlapping part; 62-second overlapping part; 63-connecting part; 64-first stress release part; 65-identification hole; 66-first positioning groove; 67-third positioning groove; 68-positioning hole; 70-second electrical connector; 71-third overlapping part; 72-fourth overlapping part; 73-second stress release part; 74-second positioning groove; 75-fourth positioning groove; 76-third insulating member; 761-through hole; 762-fifth positioning groove; 80-thermal conductive material; 90-thermal conductive member; 20a-electronic device; 211a-first connecting terminal; 221b-second connecting terminal; 40a-insulating member. DETAILED DESCRIPTION

[0081] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0082] The embodiment of the present application provides an electronic device 20 a. The electronic device 20 a may be a capacitor module 20 or a power module 30 in a controller 100 .

[0083] Reference Figure 1 , Figure 2 and Figure 4 , the electronic device 20a includes a first connection terminal 211a and a second connection terminal 221b.

[0084] The second connection terminal 221b has opposite polarity to the first connection terminal 211a and is spaced apart from the first connection terminal 211a. In a projection plane perpendicular to the thickness direction of the second connection terminal 221b, the projection of the first connection terminal 211a falls within the projection of the second connection terminal 221b.

[0085] It can be understood that the second connection terminal 221b and the first connection terminal 211a are arranged at intervals along the thickness direction of the second connection terminal 221b, and along the thickness direction of the second connection terminal 221b, the second connection terminal 221b overlaps with the first connection terminal 211a, and the second connection terminal 221b and the first connection terminal 211a are arranged in a stacked manner. Figure 1 and Figure 2 As shown, the first connection terminal 211a is disposed above the second connection terminal 221b.

[0086] Since the first connection terminal 211a and the second connection terminal 221b have opposite polarities, after the electronic device 20a is powered on, the current directions of the first connection terminal 211a and the second connection terminal 221b are opposite, and the magnetic field direction around the first connection terminal 211a is opposite to the magnetic field direction around the second connection terminal 221b. Figure 3 Typically, the first connection terminal 211a and the second connection terminal 221b are arranged side by side along the length direction of the first connection terminal 211a, and the center distance between the first connection terminal 211a and the second connection terminal 221b is far. After the electronic device 20a is powered on, the magnetic field around the first connection terminal 211a and the magnetic field around the second connection terminal 221b overlap at a position (position E in the figure) with the same magnetic field direction, resulting in magnetic field superposition, which in turn leads to an increase in stray inductance.

[0087] In the embodiment of the present application, by arranging the first connection terminal 211a and the second connection terminal 221b so that, in a projection plane perpendicular to the thickness direction of the second connection terminal 221b, the projection of the first connection terminal 211a falls within the projection of the second connection terminal 221b, compared with arranging the two side by side along the length or width of the connection terminals, the center of the first connection terminal 211a and the center of the second connection terminal 221b can be closer, so that during the power-on process, the overlapping part ( Figure 4 The magnetic fields at the middle F position) are in opposite directions and partially cancel each other out, which helps to reduce stray inductance and improve the operating stability of the electronic device 20a.

[0088] In some embodiments, the first connection terminal 211a and the second connection terminal 221b are arranged side by side along their thickness direction (Z direction in the figure), and the first connection terminal 211a is parallel to the second connection terminal 221b. It can be understood that the thickness direction of the first connection terminal 211a (Z direction in the figure) is parallel to the thickness direction of the second connection terminal 221b. Such arrangement makes the center of the first connection terminal 211a and the center of the second connection terminal 221b closer, so that the magnetic field around the first connection terminal 211a and the magnetic field around the second connection terminal 221b can offset each other to a large extent, which helps to reduce the stray inductance to a large extent.

[0089] In some embodiments, the length of the first connection terminal 211 a is the same as the length of the second connection terminal 221 b , which helps the first connection terminal 211 a and the second connection terminal 221 b to be aligned in the length direction.

[0090] In some embodiments, the width of the first connection terminal 211a is smaller than the width of the second connection terminal 221b. Along the width direction of the first connection terminal 211a (the X direction in the figure), the free end of the second connection terminal 221b extends out of the free end of the first connection terminal 211a. This arrangement facilitates the connection of the first connection terminal 211a and the second connection terminal 221b with other electrical connectors, reducing the difficulty of assembling the electronic device 20a with other components.

[0091] For example, Figure 1 As shown, along the length direction (Y direction in the figure) of the first electrical connector 60, the free end of the first connection terminal 211a is aligned with the free end of the second connection terminal 221b. Along the width direction of the first connection terminal 211a, the free end of the second connection terminal 221b extends out of the free end of the first connection terminal 211a, so that the free end of the first connection terminal 211a and the free end of the second connection terminal 221b are misaligned.

[0092] In some embodiments, the electronic device 20a further includes an insulating member 40a.

[0093] The insulating member 40a is at least partially disposed between the first connection terminal 211a and the second connection terminal 221b to reduce the risk of a short circuit between the first connection terminal 211a and the second connection terminal 221b.

[0094] In some embodiments, along the thickness direction of the insulating member 40a (Z direction in the figure), the insulating member 40a has a first surface and a second surface that are arranged opposite to each other. The first surface is in contact with the first connection terminal 211a, and the second surface is in contact with the second connection terminal 221b. In this way, the distance between the first connection terminal 211a and the second connection terminal 221b is further reduced, so that the center of the first connection terminal 211a and the center of the second connection terminal 221b are closer, which helps to further cancel out the magnetic field around the first connection terminal 211a and the magnetic field around the second connection terminal 221b, thereby reducing stray inductance.

[0095] Reference Figure 1 and Figure 2 In some embodiments, along the length direction of the insulating member 40a (Y direction in the figure), the length of the insulating member 40a is greater than the length of the first connecting terminal 211a, and the free end of the insulating member 40a extends out of the free end of the first connecting terminal 211a, which helps to improve the insulation reliability between the first connecting terminal 211a and the second connecting terminal 221b.

[0096] In other embodiments, along the length direction of the insulating member 40a, the length of the insulating member 40a may be equal to the length of the first connection terminal 211a, and the free end of the insulating member 40a is flush with the end of the first connection terminal 211a to reduce the length of the insulating member 40a.

[0097] In some embodiments, the width of the insulating member 40a is greater than the width of the first connecting terminal 211a, and along the width direction of the insulating member 40a (X direction in the figure), the free end of the insulating member 40a extends out of the free end of the first connecting terminal 211a, which helps to improve the insulation reliability between the first connecting terminal 211a and the second connecting terminal 221b.

[0098] In some embodiments, the insulating member 40a includes a first insulating portion 41 and a second insulating portion 42, the first insulating portion 41 is disposed between the first connecting terminal 211a and the second connecting terminal 221b, and the second insulating portion 42 is protruded on the side of the first insulating portion 41 facing the first connecting terminal 211a and is located on the outer side of the first connecting terminal 211a.

[0099] For example, Figure 1 As shown, the first insulating portion 41 is arranged horizontally, the second insulating portion 42 stands vertically along the thickness direction of the insulating member 40a, and the second insulating portion 42 is located outside the first connecting terminal 211a.

[0100] In the embodiment of the present application, by providing the second insulating portion 42, the creepage distance between the first connection terminal 211a and the second connection terminal 221b is increased, which helps to reduce the safety hazard caused by arcing between the first connection terminal 211a and the second connection terminal 221b under high voltage.

[0101] In some embodiments, the second insulating portion 42 protrudes from a side of the first connection terminal 211a away from the second connection terminal 221b, which further increases the creepage distance between the first connection terminal 211a and the second connection terminal 221b.

[0102] It can be understood that along the thickness direction of the first connection terminal 211 a , the second insulating portion 42 is higher than the first connection terminal 211 a .

[0103] Reference Figure 1 In some embodiments, the electronic device 20a is a capacitor module 20, the first connection terminal 211a is a first output terminal 211 of the capacitor module 20, and the second connection terminal 221b is a second output terminal 221 of the capacitor module 20. The first output terminal 211 can be used to electrically couple with the first input terminal 31 of the power module 30, and the second output terminal 221 can be used to electrically couple with the second input terminal 32 of the power module 30.

[0104] In some embodiments, the insulating member 40 a is provided with a first positioning portion 43 , and the first positioning portion 43 is configured to position the first output terminal 211 to reduce the risk of unstable electrical connection caused by displacement of the first output terminal 211 .

[0105] In some embodiments, the first positioning portion 43 is a protrusion protruding from the insulating member 40 a , and the first connecting terminal 211 a is provided with a matching hole corresponding to the first positioning portion 43 , and the first positioning portion 43 is limited to be located in the matching hole.

[0106] In other embodiments, the first positioning portion 43 may be a latching protrusion disposed on the edge of the insulating member 40 a , and the insulating member 40 a is latched to the edge of the first output end 211 through the first positioning portion 43 to position the first output end 211 .

[0107] In some embodiments, the insulating member 40 a is provided with a second positioning portion 44 , and the second positioning portion 44 is configured to position the second output terminal 221 to reduce the risk of unstable electrical connection caused by displacement of the second output terminal 221 .

[0108] In some embodiments, the second positioning portion 44 is a protrusion protruding from the insulating member 40 a , and the second connecting terminal 221 b is provided with a matching hole corresponding to the second positioning portion 44 , and the second positioning portion 44 is limited in the matching hole.

[0109] In other embodiments, the second positioning portion 44 may be a latching protrusion disposed on the edge of the insulating member 40 a , and the insulating member 40 a is latched to the edge of the second output end 221 through the second positioning portion 44 to position the second output end 221 .

[0110] The structures of the first positioning portion 43 and the second positioning portion 44 may be the same, or may be different as required.

[0111] Reference Figure 2 In some embodiments, the electronic device 20a is a power module 30, the first connection terminal 211a is a first input terminal 31 of the power module 30, and the second connection terminal 221b is a second input terminal 32 of the power module 30. The first input terminal 31 can be used to electrically couple with the first output terminal 211 of the capacitor module 20, and the second input terminal 32 can be used to electrically couple with the second output terminal 221 of the capacitor module 20.

[0112] In some embodiments, a plurality of first input terminals 31 are provided, and the plurality of first input terminals 31 are spaced apart along the length direction thereof, a plurality of second input terminals 32 are provided, and the plurality of second input terminals 32 are spaced apart along the length direction thereof, and each first input terminal 31 corresponds to each second input terminal 32. It can be understood that the first input terminals 31 correspond to the second input terminals 32 one by one.

[0113] For example, Figure 2 As shown, three first input terminals 31 and three second input terminals 32 are provided.

[0114] In some embodiments, the insulating member 40 a is partially located between two adjacent first input terminals 31 and / or between two adjacent second input terminals 32 to insulate the two connected first input terminals 31 and / or the two connected second input terminals 32 , which helps the power module 30 to operate stably.

[0115] According to a second aspect of the present application, a controller 100 is provided, which is applicable to a motor controller 100, a photovoltaic controller 100, an energy storage controller 100, etc. The controller 100 includes the above-mentioned electronic device 20a.

[0116] Reference Figures 5 to 23 In some embodiments, the controller 100 includes a capacitor module 20 and a power module 30, and at least one of the capacitor module 20 and the power module 30 is the above-mentioned electronic device 20a.

[0117] Reference Fig.17 and Fig.18In some embodiments, the capacitor module 20 includes a capacitor core group 23, a first busbar 21, and a second busbar 22. The capacitor core group 23 includes a plurality of cores, and the plurality of cores are arranged along the thickness direction of the core (the Y direction in the figure). The first busbar 21 is arranged above the capacitor core group 23, and the second busbar 22 is arranged below the capacitor core group 23.

[0118] The first busbar 21 has opposite polarity to the second busbar 22. In some embodiments, the first busbar 21 may be a negative busbar, and the second busbar 22 may be a positive busbar.

[0119] Specifically, the first busbar 21 has a negative power input terminal 212 and a negative output terminal, and the second busbar 22 has a positive power input terminal 222 and a positive output terminal. The negative output terminal and the positive output terminal are arranged on one side of the width direction (X direction in the figure) of the capacitor core group 23, and the negative power input terminal 212 and the positive power input terminal 222 are located on the other side of the width direction of the capacitor core group 23.

[0120] In some embodiments, the power supply negative input terminal 212 and the positive input terminal 222 are located on the side of the capacitor core group 23. The power supply positive and negative input terminals and the positive and negative output terminals can be arranged horizontally.

[0121] In some embodiments, reference Fig.19 The power module 30 includes a three-phase output terminal 33. Correspondingly, the capacitor module 20 has three input terminals, each of which includes a first input terminal 31 and a second input terminal 32 with opposite polarities.

[0122] In some embodiments, the capacitor module 20 includes a first output terminal 211 and a second output terminal 221, the first output terminal 211 and the second output terminal 221 have opposite polarities, and the first output terminal 211 and the second output terminal 221 are spaced apart. The power module 30 includes a first input terminal 31 and a second input terminal 32, the first input terminal 31 and the second input terminal 32 have opposite polarities, the first input terminal 31 is electrically coupled to the first output terminal 211, the second input terminal 32 is electrically coupled to the second output terminal 221, and the first input terminal 31 and the second input terminal 32 are spaced apart.

[0123] Among them, in the projection plane perpendicular to the thickness direction (Z direction in the figure) of the first output end 211, the projection of the first output end 211 falls within the projection of the second output end 221, and the projection of the first input end 31 falls within the projection plane of the second input end 32.

[0124] In some embodiments, the first output terminal 211 and the second output terminal 221 may be parallel, and the first input terminal 31 and the second input terminal 32 may be parallel.

[0125] Exemplarily, the first output end 211 and the second output end 221 are spaced apart in the thickness direction thereof, the first output end 211 and the second output end 221 are parallel to each other, and the first output end 211 can be disposed above the second output end 221. The first input end 31 and the second input end 32 are spaced apart in the thickness direction thereof, the first input end 31 and the second input end 32 are parallel to each other, and the first input end 31 can be disposed above the second input end 32.

[0126] In some embodiments, the first output terminal 211 is the negative output terminal of the first busbar 21, the second output terminal 221 is the positive output terminal of the second busbar 22, the first input terminal 31 is the negative input terminal corresponding to the first output terminal 211, and the second input terminal 32 is the positive input terminal corresponding to the second output terminal 221.

[0127] It is defined that the first output terminal 211 and the first input terminal 31 are electrically coupled to form a first current path, and the second output terminal 221 and the second input terminal 32 are electrically coupled to form a second current path. Since the first output terminal 211 and the second output terminal 221 have opposite polarities, the first current path and the second current path are opposite, and the direction of the magnetic field around the first current path is opposite to the direction of the magnetic field around the second current path.

[0128] In the embodiment of the present application, by arranging the relative positions of the first output terminal 211 and the second output terminal 221 and the relative positions of the first input terminal 31 and the second input terminal 32 so that, in a projection plane perpendicular to the thickness direction of the first output terminal 211, the projection of the first input terminal 31 falls within the projection of the second input terminal 32, and the projection of the first output terminal 211 falls within the projection of the second output terminal 221, compared to arranging the two side by side along the length of the connecting terminal, the center of the first output terminal 211 and the center of the second output terminal 221 can be closer, and the center of the first input terminal 31 and the center of the second input terminal 32 can be closer. As a result, the first current path and the second current path are closer, so that during the power-on process, the overlapping parts of the magnetic field around the first current path and the magnetic field around the second current path cancel each other out due to the opposite directions of the magnetic fields, which helps to reduce stray inductance and improve the stability of the operation of the controller 100.

[0129] In some embodiments, reference Fig.13 The controller 100 further includes a first insulating member 40 , which is at least partially disposed between the first output terminal 211 and the second output terminal 221 to insulate the first output terminal 211 from the second output terminal 221 , which helps to improve the insulation reliability between the first output terminal 211 and the second output terminal 221 .

[0130] In some embodiments, reference Fig.13The controller 100 further includes a second insulating member 50 , which is at least partially disposed between the first input terminal 31 and the second input terminal 32 to insulate the first input terminal 31 from the second input terminal 32 , which helps to improve the insulation reliability between the first input terminal 31 and the second input terminal 32 .

[0131] Reference Figures 12 to 16 In some embodiments, the controller 100 further includes a first electrical connector 60 , one end of the first electrical connector 60 is connected to the first output terminal 211 , and the other end is connected to the first input terminal 31 . It can be understood that the first output terminal 211 and the first input terminal 31 are electrically coupled through the first electrical connector 60 .

[0132] Reference Figures 12 to 16 In some embodiments, the controller 100 further includes a second electrical connector 70, one end of the second electrical connector 70 is connected to the second output terminal 221, and the other end is connected to the second input terminal 32. The second output terminal 221 is electrically coupled to the second input terminal 32 through the second electrical connector 70.

[0133] It can be understood that the first electrical connector 60 and the second electrical connector 70 are conductive members, the first electrical connector 60 is a bridge between the first output terminal 211 and the first input terminal 31 , and the second electrical connector 70 is a bridge between the second output terminal 221 and the second input terminal 32 .

[0134] Usually, the two output ends of the capacitor module 20 and the two input ends of the power module 30 are connected by nuts, and the output ends are stacked on top of the input ends. This connection method requires the power module 30 to be assembled into the controller 100 first, and the capacitor module 20 to be assembled into the controller 100 later. In the case where the capacitor module 20 is integrated with other components of the controller 100, if the capacitor module 20 is installed first, it will make it difficult to assemble the power module 30 with the capacitor module 20. If the power module 30 is assembled into the controller 100 first, and then the controller 100 is integrated with other components, the power module 30 will be damaged due to transportation during the integrated production process, which will further reduce the performance of the power module 30.

[0135] In the embodiment of the present application, by providing the first electrical connector 60 and the second electrical connector 70, the two output ends of the capacitor module 20 and the two input ends of the power module 30 are not in direct contact. As a result, the assembly order of the capacitor module 20 and the power module 30 is not restricted by each other, and the two are assembled independently, which helps to improve the assembly flexibility of the power module 30 and the capacitor module 20.

[0136] In some embodiments, reference Fig.13 and Fig.16The controller 100 further includes a third insulating member 76 , which is disposed between the first electrical connector 60 and the second electrical connector 70 to insulate the first connector from the second electrical connector 70 .

[0137] In the embodiment of the present application, by providing the third insulating member 76, not only the risk of short circuit between the first electrical connector 60 and the second electrical connector 70 is reduced, but also the first electrical connector 60 and the second electrical connector 70 can be closer, thereby allowing the first current path and the second circuit path to be closer, thereby helping the magnetic field around the first current path and the magnetic field around the second current path to offset each other to a large extent.

[0138] To further improve insulation reliability, in some embodiments, an insulating layer may be provided on a side of the first electrical connector 60 facing the second electrical connector 70 , and an insulating layer may be provided on a side of the second electrical connector 70 facing the first electrical connector 60 .

[0139] In some embodiments, the first electrical connector 60 may be wrapped with an insulating material, wherein the insulating material covers the surface of the first electrical connector 60 outside the contact area with the first output terminal 211 and the first input terminal 31. The second electrical connector 70 may also be wrapped with an insulating material, wherein the insulating material covers the surface of the second electrical connector 70 outside the contact area with the second output terminal 221 and the second input terminal 32.

[0140] In some embodiments, the first electrical connector 60 is welded to the first output terminal 211 and / or the first input terminal 31 .

[0141] In some embodiments, the second electrical connector 70 is welded to the second output terminal 221 and / or the second input terminal 32 .

[0142] In other embodiments, the above welding may also be replaced by riveting, crimping, etc.

[0143] Usually, the output end of the capacitor module 20 is connected to the input end of the power module 30 through a nut. In this connection mode, the nut is easy to loosen, resulting in poor contact, and then causing arcing, breakage and other problems, and at the same time causing an increase in stray inductance.

[0144] In the embodiment of the present application, by welding the first electrical connector 60 to the first output terminal 211 and the first input terminal 31, and welding the second electrical connector 70 to the second input terminal 32 and the second output terminal 221, the first electrical connector 60 is stably connected to the first output terminal 211 and the first input terminal 31, and the second electrical connector 70 is stably connected to the second input terminal 32 and the second output terminal 221, which helps to alleviate the problems of arcing, breakage and increased stray inductance caused by the nut connection, thereby improving the operating stability of the controller 100.

[0145] In some embodiments, the first output terminal 211 is disposed above the second output terminal 221, the width of the second output terminal 221 is greater than the width of the first output terminal 211, and along the width direction of the second output terminal 221 (X direction in the figure), the free end of the second output terminal 221 extends out of the free end of the first output terminal 211, so that the first output terminal 211 and the second output terminal 221 are staggered in a stepped manner. The first input terminal 31 is disposed above the second input terminal 32, the width of the second input terminal 32 is greater than the width of the first input terminal 31, and along the width direction of the second input terminal 32, the free end of the second input terminal 32 extends out of the free end of the first input terminal 31, so that the first input terminal 31 and the second input terminal 32 are staggered in a stepped manner. The first output terminal 211 and the first input terminal 31 are respectively welded to the first electrical connector 60.

[0146] The second output terminal 221 and the second input terminal 32 are respectively welded to the second electrical connection member 70 .

[0147] In the embodiment of the present application, by extending the free end of the second output terminal 221 beyond the free end of the first output terminal 211, and the free end of the second input terminal 32 beyond the free end of the first input terminal 31, the upper first output terminal 211 does not completely cover the lower second output terminal 221, and the upper first input terminal 31 does not completely cover the lower second input terminal 32, so as to facilitate welding of the second connecting member with the second output terminal 221 and the second input terminal 32, which helps to reduce the difficulty of assembling the power module 30 and the capacitor module 20.

[0148] For example, the portion of the second output end 221 extending from the free end of the first output end 211 is used as a welding area for welding with the second electrical connector 70, and the portion of the second input end 32 extending from the free end of the first output end 211 is used as a welding area for welding with the second electrical connector 70. By scanning from top to bottom with the laser, during the scanning process, the first output end 211 and the first input end 31 do not block the welding area below, which helps to reduce the difficulty of welding the second electrical connector 70 with the second output end 221 and the second input end 32.

[0149] In some embodiments, reference Fig. 20 and Fig. 22 The first electrical connector 60 is provided with a first stress release portion 64. The first stress release portion 64 is provided to help release the deformation stress of the first electrical connector 60 caused by pressure or heat during laser welding, reduce the welding gap between the first electrical connector 60 and the first output terminal 211 and the first input terminal 31, and improve welding stability.

[0150] In some embodiments, the second electrical connector 70 is provided with a second stress release portion 73. The second stress release portion 73 is provided to help release the deformation stress of the second electrical connector 70 caused by pressure or heat during laser welding, reduce the welding gap between the second electrical connector 70 and the second output terminal 221 and the second input terminal 32, and improve welding stability.

[0151] The structures of the first stress release portion 64 and the second stress release portion 73 may be the same or different.

[0152] The first stress release portion 64 and the second stress release portion 73 may be configured as a through hole 761 , a notch, or the like.

[0153] For example, Fig. 20 and Fig. 22 As shown, the first stress release portion 64 is a rectangular groove disposed on the edge of the first electrical connector 60 , and the second stress release portion 73 is a rectangular groove disposed on the edge of the second electrical connector 70 .

[0154] In some embodiments, the length of the first output end 211 is the same as the length of the second output end 221. The length of the first input end 31 is the same as the length of the second input end 32.

[0155] In some embodiments, the width of the first output end 211 is smaller than the width of the second output end 221, and the free end of the second output end extends from the free end of the first output end. The width of the first input end 31 is smaller than the width of the second input end 32, and the free end of the second input end extends from the free end of the first input end.

[0156] In some embodiments, reference Fig.17 The first insulating member 40 includes a first insulating portion 41 and a second insulating portion 42. The first insulating portion 41 is disposed between the first output terminal 211 and the second output terminal 221, and the second insulating portion 42 is protrudingly disposed on a side of the first insulating portion 41 facing the first output terminal 211 and located on a side of the first output terminal 211 close to the first input terminal 31.

[0157] For example, Fig.17 As shown, the first insulating portion 41 is horizontally arranged, the second insulating portion 42 is vertically arranged along the thickness direction of the first insulating member 40 , and the second insulating portion 42 is located outside the first output end 211 .

[0158] In the embodiment of the present application, by providing the second insulating portion 42, the creepage distance between the first output terminal 211 and the second output terminal 221 is increased, which helps to reduce the safety hazard caused by arcing between the first output terminal 211 and the second output terminal 221 under high voltage.

[0159] In some embodiments, the second insulating portion 42 protrudes from a side of the first output terminal 211 away from the second output terminal 221 , which further increases a creepage distance between the first output terminal 211 and the second output terminal 221 .

[0160] It can be understood that in this embodiment, the top surface of the second insulating portion 42 is higher than the top surface of the first output end 211 .

[0161] In some embodiments, the first insulating member 40 is provided with a first positioning portion 43, and the first positioning portion 43 is configured to position the first electrical connector 60. This arrangement reduces the risk of displacement of the first electrical connector 60 during connection with the first output terminal 211 and the first input terminal 31, which helps to improve connection stability.

[0162] In some embodiments, reference Fig.12 , Fig.17 and Fig. 20 The first positioning portion 43 is a protrusion protruding from the first insulating member 40 , and a first positioning groove 66 is provided at one end of the first electrical connector 60 close to the capacitor module 20 . The first positioning portion 43 is configured to be limited in the first positioning groove 66 .

[0163] Reference Fig.17 In some embodiments, the first positioning portion 43 may also be configured to position the first output end 211 .

[0164] In some embodiments, the first insulating member 40 is provided with a second positioning portion 44, which is configured to position the second electrical connector 70. This arrangement reduces the risk of displacement of the second electrical connector 70 during connection with the second output terminal 221 and the second input terminal 32, which helps to improve connection stability.

[0165] Reference Fig.17 In some embodiments, the second positioning portion 44 may also be configured to position the second output end 221 .

[0166] In some embodiments, the second positioning portion 44 is a protrusion protruding from the first insulating member 40 , and a second positioning groove 74 is provided at one end of the second electrical connector 70 close to the capacitor module 20 . The second positioning portion 44 is configured to be limited in the second positioning groove 74 .

[0167] In some embodiments, reference Fig.19 The second insulating member 50 includes a third insulating portion 51 and a fourth insulating portion 52. The third insulating portion 51 is arranged between the first input terminal 31 and the second input terminal 32. The fourth insulating portion 52 is protruded from the side of the third insulating portion 51 facing the first input terminal 31 and is located on the side of the first input terminal 31 close to the first output terminal 211.

[0168] For example, Fig.19 As shown, along the width direction of the second insulating member 50 , the end of the third insulating portion 51 extends out of the end of the fourth insulating portion 52 , the fourth insulating portion 52 carries the first input terminal 31 and the second input terminal 32 , and the fourth insulating portion 52 is arranged around the outer periphery of the first input terminal 31 .

[0169] In the embodiment of the present application, by providing the fourth insulating portion 52 , the creepage distance between the first input terminal 31 and the second input terminal 32 is increased, which helps to reduce the safety hazard caused by arcing between the first input terminal 31 and the second input terminal 32 under high voltage.

[0170] In some embodiments, the fourth insulating portion 52 protrudes from a side of the first input terminal 31 away from the second input terminal 32 , which further increases a creepage distance between the first input terminal 31 and the second input terminal 32 .

[0171] In some embodiments, reference Fig.19 The second insulating member 50 is provided with a third positioning portion 53, and the third positioning portion 53 is configured to position the first electrical connector 60 so that the risk of displacement of the first electrical connector 60 during connection with the first output terminal 211 and the first input terminal 31 is reduced, which helps to improve the connection stability.

[0172] In some embodiments, the third positioning portion 53 is further configured to position the second electrical connector 70 so that the risk of displacement of the second electrical connector 70 during connection with the second output terminal 221 and the second input terminal 32 is reduced, which helps to improve connection stability.

[0173] In some embodiments, the third positioning portion 53 is further configured to position the third insulating member 76 to improve the insulation reliability between the first electrical connector 60 and the second electrical connector 70 .

[0174] In some embodiments, the third positioning portion 53 is a protrusion protruding from the second insulating member 50 , the first electrical connector 60 is provided with a third positioning groove 67 , and the third positioning portion 53 is configured to be limited in the third positioning groove 67 .

[0175] In some embodiments, the second electrical connector 70 is provided with a fourth positioning groove 75 , and the third positioning portion 53 is further configured to be limited in the fourth positioning groove 75 .

[0176] In some embodiments, the third insulating member 76 is further provided with a fifth positioning groove 762 , and the third positioning portion 53 is further configured to be limited in the fifth positioning groove 762 .

[0177] It can be understood that the third positioning groove 67 , the fourth positioning groove 75 and the fifth positioning groove 762 correspond to each other, and the third positioning portion 53 simultaneously positions the first electrical connector 60 , the second electrical connector 70 and the third insulating member 76 .

[0178] In some embodiments, reference Fig.14 and Fig.19 The second insulating member 50 is provided with a fourth positioning portion 54, which is configured to position the first electrical connector 60 so that the risk of displacement of the first electrical connector 60 during connection with the second output terminal 221 and the second input terminal 32 is reduced, which helps to improve the connection stability.

[0179] In some embodiments, reference Fig.14 , Fig.19 and Fig. 20 The fourth positioning portion 54 is a protrusion protruding from the second insulating member 50 , the first electrical connector 60 is provided with a positioning hole 68 , and the fourth positioning portion 54 is configured to be limited in the positioning hole 68 .

[0180] In some embodiments, reference Fig.21 The third insulating member 76 is further provided with a through hole 761 , and the fourth positioning portion 54 is further configured to be limited in the through hole 761 .

[0181] It can be understood that the fourth positioning portion 54 can simultaneously position the first electrical connector 60 and the third insulating member 76 .

[0182] Reference Fig. 20 In some embodiments, the first electrical connector 60 includes a first overlap portion 61, a second overlap portion 62 and a connecting portion 63. The first overlap portion 61 and the second overlap portion 62 are respectively connected to two ends of the connecting portion 63, the first overlap portion 61, the second overlap portion 62 and the connecting portion 63 are parallel, the first overlap portion 61 and the second overlap portion 62 are coplanar, and the connecting portion 63 is higher than the first overlap portion 61 and the second overlap portion 62 to avoid the second insulating portion 42 and the fourth insulating portion 52. The first overlap portion 61 is connected to the first output terminal 211, and the second overlap portion 62 is connected to the first input terminal 31.

[0183] Reference Fig. 22 In some embodiments, the second electrical connector 70 includes a third overlapping portion 71 and a fourth overlapping portion 72 connected to each other, the third overlapping portion 71 is connected to the second output terminal 221 , and the fourth overlapping portion 72 is connected to the second input terminal 32 .

[0184] In some embodiments, the second electrical connector 70 is provided with two rows of identification portions, the two rows of identification portions are arranged at intervals along the width direction (X direction in the figure) of the second electrical connector 70, and each row of identification portions includes a plurality of identification holes 65 arranged at intervals along the length direction (Y direction in the figure) of the second electrical connector 70. Along the thickness direction of the second electrical connector 70, the projection of the identification hole 65 does not overlap with the second output end 221, and the projection of the identification hole 65 does not overlap with the second input end 32.

[0185] It can be understood that the area between the two rows of identification parts is a non-welding area, and the area outside the two rows of identification parts is a welding area. When the second electrical connector 70 is welded to the second output terminal 221 and the second input terminal 32 respectively, by observing the position of the identification part, the area of ​​laser scanning can be controlled to avoid welding to the non-welding area and causing the risk of perforation of the second electrical connector.

[0186] In some embodiments, the first electrical connector 60 and the second electrical connector 70 may be stamped from sheet metal.

[0187] Reference Figures 5 to 11 In some embodiments, the controller 100 further includes a housing 10 having a receiving portion 11, and the power module 30 and the capacitor module 20 are disposed in the receiving portion 11. The housing 10 is provided to protect the power module 30 and the capacitor module 20, which helps to extend the service life of the controller 100.

[0188] In some embodiments, a flow channel containing a cooling medium is disposed in the housing 10 , and the cooling medium is used to cool the power module 30 and the capacitor module 20 .

[0189] Specifically, refer to Fig. 9 The housing 10 is provided with a liquid inlet 14 and a liquid outlet 15. The liquid inlet 14 is connected to the flow channel, and the liquid outlet 15 is connected to the flow channel, so that the cooling medium circulates and improves the heat dissipation efficiency.

[0190] In the embodiment of the present application, a flow channel is provided in the housing 10 to accommodate the cooling medium, so that the housing 10 has the function of a heat dissipation device. Therefore, there is no need to provide a heat exchange component separately, which helps to simplify the number of components and reduce the volume of the controller 100.

[0191] In some embodiments, reference Fig.23 The housing portion 11 includes a first sub-housing portion 111 and a second sub-housing portion 112 , the capacitor module 20 is disposed in the first sub-housing portion 111 , and the power module 30 is disposed in the second sub-housing portion 112 .

[0192] The first sub-accommodation portion 111 is filled with a thermally conductive material 80 , the capacitor module 20 is embedded in the thermally conductive material 80 , the capacitor module 20 is indirectly thermally coupled to the housing 10 via the thermally conductive material 80 , and the first output terminal 211 and the second output terminal 221 are exposed from the thermally conductive material 80 .

[0193] The thermal conductive material 80 may include but is not limited to silicone gel, paraffin, thermal conductive glue, etc.

[0194] In the embodiment of the present application, by providing the heat conductive material 80 , the heat exchange efficiency between the capacitor module 20 and the cooling medium is improved, which helps to improve the cooling effect of the capacitor module 20 .

[0195] In some embodiments, the thermal conductive material 80 is filled and molded in the first sub-accommodation portion 111 , which helps to integrate the capacitor module 20 with the box body 10 and improve the integration of the controller 100 .

[0196] In some embodiments, the assembled structure of the capacitor core group 23, the first busbar 21 and the second busbar 22 is embedded in the thermal conductive material 80. It can be understood that the capacitor module 20 omits the shell, and the filled and molded thermal conductive material 80 not only improves the heat exchange efficiency but also has the protective function of the shell.

[0197] In some embodiments, reference Fig. 9 , Fig.10 , Fig.11 , Fig.23 and Fig.24 The controller 100 may further include a partition and a baffle 12. The partition is integrally formed with the housing 10. The first sub-accommodation portion 111 and the second sub-accommodation portion 112 are located on both sides of the partition. The partition is provided with an escape groove 131. The notch of the escape groove 131 extends to the top of the partition. The escape groove 131 facilitates the assembly of the capacitor module 20 into the first sub-accommodation portion 111, and the first output terminal 211 and the second output terminal 221 extend to the second sub-accommodation portion 112.

[0198] The baffle 12 is located on one side of the partition facing the first sub-accommodation portion 111, and the baffle 12 is provided with a clamping groove corresponding to the avoidance groove 131. A gap is formed between the avoidance groove 131 and the clamping groove for the first output end 211 and the second output end 221 to pass through.

[0199] During specific assembly, the capacitor module 20 can be first assembled into the first sub-accommodation portion 111, and then the baffle 12 can be clamped to the partition. Finally, epoxy resin can be poured into the first sub-accommodation portion 111, and the epoxy resin can be cured to form an integrated electric control box 10.

[0200] In some embodiments, reference Fig. 9 The controller 100 also includes a heat conductor 90, which is disposed at the bottom of the accommodating portion 11, partially located between the capacitor module 20 and the housing 10, and partially located between the power module 30 and the housing 10. The capacitor module 20 is indirectly thermally coupled to the housing 10 through the heat conductor 90, and the power module 30 is indirectly thermally coupled to the housing 10 through the heat conductor 90.

[0201] The heat conducting member 90 may be a metal plate.

[0202] In the embodiment of the present application, by providing a heat conductor 90, the heat exchange efficiency between the power module 30 and the housing 10 is improved, and the heat exchange efficiency between the capacitor module 20 and the housing 10 is improved, which helps to improve the heat dissipation efficiency of the capacitor module 20 and the power module 30.

[0203] In some embodiments, reference Fig.19 The power module 30 further includes a heat sink 34 , which is thermally coupled to the housing 10 .

[0204] In some embodiments, reference Fig.19 and Figure 8 The heat sink 34 is a heat sink pin, and the housing 10 is further provided with a socket 16 communicating with the flow channel, and the heat sink pin is configured to be inserted into the socket 16 to contact with the cooling medium.

[0205] In the embodiment of the present application, heat dissipation pins are arranged so that the heat dissipation pins extend into the flow channel to contact the cooling medium, and the flow of the cooling medium is used to flush the heat dissipation pins, which helps to improve the heat dissipation efficiency.

[0206] According to a third aspect of the present application, a vehicle is provided, the vehicle comprising the above-mentioned electronic device 20a or the above-mentioned controller 100. Since the vehicle comprises the above-mentioned electronic device 20a or the above-mentioned controller 100, the vehicle has all the beneficial effects of the electronic device 20a or the controller 100, which will not be described in detail here.

[0207] The vehicle may be a fuel vehicle, a plug-in hybrid vehicle or a new energy vehicle, etc., and this application does not make any specific limitation on this.

[0208] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0209] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0210] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0211] The above are only preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. An electronic device, characterized in that: include: a first connecting terminal; The second connection terminal has opposite polarity to the first connection terminal and is spaced apart from the first connection terminal. In a projection plane perpendicular to the thickness direction of the second connection terminal, the projection of the first connection terminal falls within the projection of the second connection terminal.

2. The electronic device according to claim 1, characterized in that The length of the first connection terminal is the same as that of the second connection terminal; and / or the width of the first connection terminal is smaller than that of the second connection terminal, and the free end of the second connection terminal extends out of the free end of the first connection terminal.

3. The electronic device according to claim 2, characterized in that: The electronic device further comprises: An insulating member is at least partially disposed between the first connecting terminal and the second connecting terminal.

4. The electronic device according to claim 3, characterized in that: The insulating member has a first surface and a second surface that are disposed opposite to each other, the first surface is in contact with the first connecting terminal, and the second surface is in contact with the second connecting terminal.

5. The electronic device according to claim 3, characterized in that: The length of the insulating member is greater than or equal to the length of the first connecting terminal, and the free end of the insulating member is flush with the free end of the first connecting terminal, or extends out of the free end of the first connecting terminal.

6. The electronic device according to claim 3, characterized in that: The width of the insulating member is greater than or equal to the width of the first connecting terminal, and the free end of the insulating member is flush with the free end of the first connecting terminal, or extends out of the free end of the first connecting terminal.

7. The electronic device according to claim 6, characterized in that: The insulating member includes a first insulating portion and a second insulating portion, wherein the first insulating portion is disposed between the first connecting terminal and the second connecting terminal, and the second insulating portion is protruded from a side of the first insulating portion facing the first connecting terminal and is located outside the first connecting terminal.

8. The electronic device according to claim 7, characterized in that: The second insulating portion protrudes from a side of the first connecting terminal facing away from the second connecting terminal.

9. The electronic device according to claim 3, characterized in that: The electronic device is a capacitor module, the first connecting terminal is a first output end of the capacitor module, and the second connecting terminal is a second output end of the capacitor module.

10. The electronic device according to claim 9, characterized in that: The insulating member is provided with a first positioning portion, and the first positioning portion is configured to position the first output end; and / or the insulating member is provided with a second positioning portion, and the second positioning portion is configured to position the second output end.

11. The electronic device according to claim 3, characterized in that: The electronic device is a power module, the first connection terminal is a first input end of the power module, and the second connection terminal is a second input end of the power module.

12. The electronic device according to claim 11, characterized in that: There are multiple first input ends, which are spaced apart along the length direction thereof; there are multiple second input ends, which are spaced apart along the length direction thereof; and each first input end corresponds to each second input end.

13. The electronic device according to claim 12, characterized in that: The insulating member is partially located between two adjacent first input ends and / or between two adjacent second input ends.

14. The electronic device according to any one of claims 1 to 13, characterized in that: The first connecting terminal is parallel to the second connecting terminal.

15. A controller, characterized in that: include: The capacitor module comprises a first output terminal and a second output terminal with opposite polarities, wherein the first output terminal and the second output terminal are arranged at intervals; A power module, comprising a first input terminal electrically coupled to the first output terminal and a second input terminal electrically coupled to the second output terminal, wherein the first input terminal is spaced apart from the second input terminal; Among them, in the projection plane perpendicular to the thickness direction of the first output end, the projection of the first output end falls within the projection of the second output end, and the projection of the first input end falls within the projection plane of the second input end.

16. The controller according to claim 15, characterized in that The first output end is parallel to the second output end; and / or, The first input terminal and the second input terminal are parallel.

17. The controller according to claim 15, characterized in that: The controller further comprises: A first insulating member is at least partially disposed between the first output end and the second output end; and / or, The second insulating member is at least partially disposed between the first input end and the second input end.

18. The controller according to claim 15, characterized in that: The controller further comprises: A first electrical connector, one end of which is connected to the first output end, and the other end of which is connected to the first input end, wherein the first output end and the first input end are electrically coupled via the first electrical connector; and / or, A second electrical connector has one end connected to the second output end and the other end connected to the second input end, and the second output end is electrically coupled to the second input end through the second electrical connector.

19. The controller according to claim 18, characterized in that The controller further comprises: The third insulating member is arranged between the first electrical connector and the second electrical connector.

20. The controller according to claim 18, characterized in that The first electrical connector is welded to the first output terminal and / or the first input terminal; and / or, The second electrical connector is welded to the second output end and / or the second input end.

21. The controller according to claim 20, characterized in that The first electrical connector is provided with a first stress relief portion; and / or, The second electrical connector is provided with a second stress release portion.

22. The controller according to claim 18 or 20, characterized in that: The width of the first output end is smaller than the width of the second output end, and the free end of the second output end extends out of the free end of the first output end; and / or, The width of the first input end is smaller than the width of the second input end, and the free end of the second input end extends out of the free end of the first input end.

23. The controller according to claim 22, characterized in that The controller further comprises: The first insulating member is at least partially disposed between the first output end and the second output end.

24. The controller according to claim 23, characterized in that The first insulating member includes a first insulating portion and a second insulating portion, the first insulating portion is arranged between the first output end and the second output end, and the second insulating portion is protruding from a side of the first insulating portion facing the first output end and is located on a side of the first output end close to the first input end.

25. The controller according to claim 24, characterized in that The second insulating portion protrudes from a side of the first output end facing away from the second output end.

26. The controller according to claim 23, characterized in that The first insulating member is provided with a first positioning portion, and the first positioning portion is configured to position the first electrical connecting member.

27. The controller according to claim 26, characterized in that The first positioning portion is a protrusion protruding from the first insulating member, and a first positioning groove is provided at one end of the first electrical connector close to the capacitor module. The first positioning portion is configured to be limited to be located in the first positioning groove.

28. The controller according to claim 23, characterized in that The first insulating member is provided with a second positioning portion, and the second positioning portion is configured to position the second electrical connecting member.

29. The controller according to claim 28, characterized in that The second positioning portion is a protrusion protruding from the first insulating member, and a second positioning groove is provided at one end of the second electrical connector close to the capacitor module. The second positioning portion is configured to be limitedly located in the second positioning groove.

30. The controller according to claim 22, characterized in that The controller further comprises: The second insulating member is at least partially disposed between the first input end and the second input end.

31. The controller according to claim 30, characterized in that The second insulating member includes a third insulating portion and a fourth insulating portion, the third insulating portion is arranged between the first input end and the second input end, and the fourth insulating portion is protruding from a side of the third insulating portion facing the first input end and is located on a side of the first input end close to the first output end.

32. The controller according to claim 31, characterized in that The fourth insulating portion protrudes from a side of the first input end facing away from the second input end.

33. The controller according to claim 30, characterized in that The second insulating member is provided with a third positioning portion, and the third positioning portion is configured to position the first electrical connector and / or the second electrical connector.

34. The controller according to claim 33, characterized in that The third positioning portion is a protrusion protruding from the second insulating member; The first electrical connector is provided with a third positioning groove, and the third positioning portion is configured to be limitedly located in the third positioning groove; and / or, The second electrical connector is provided with a fourth positioning groove, and the third positioning portion is configured to be limitedly located in the fourth positioning groove.

35. The controller according to claim 30, characterized in that The second insulating member is provided with a fourth positioning portion, and the fourth positioning portion is configured to position the first electrical connecting member.

36. The controller according to claim 35, characterized in that The fourth positioning portion is a protrusion protruding from the second insulating member, the first electrical connector is provided with a positioning hole, and the fourth positioning portion is configured to be limitedly located in the positioning hole.

37. The controller according to any one of claims 15 to 21, characterized in that: The controller further comprises: The box body is provided with a containing portion, and the power module and the capacitor module are arranged in the containing portion.

38. The controller according to claim 37, characterized in that The box body is provided with a flow channel containing a cooling medium, and the cooling medium is used to cool the power module and the capacitor module.

39. The controller according to claim 38, characterized in that The housing portion includes a first sub-housing portion and a second sub-housing portion, the capacitor module is arranged in the first sub-housing portion, and the power module is arranged in the second sub-housing portion; The first sub-accommodation portion is filled with a heat-conducting material, the capacitor module is embedded in the heat-conducting material, the capacitor module is indirectly thermally coupled to the box body through the heat-conducting material, and the first output end and the second output end are exposed from the heat-conducting material.

40. The controller according to claim 39, characterized in that The thermally conductive material is filled and molded in the first sub-accommodation portion.

41. The controller according to claim 24, characterized in that The controller further comprises: A heat conducting member is arranged at the bottom of the accommodating portion, partly located between the capacitor module and the box body, and partly located between the power module and the box body, the capacitor module is indirectly thermally coupled to the box body through the heat conducting member, and the power module is indirectly thermally coupled to the box body through the heat conducting member.

42. The controller according to claim 38, characterized in that The power module further includes a heat sink thermally coupled to the housing.

43. The controller according to claim 28, characterized in that The heat sink is a heat sink pin, and the housing is further provided with a plug hole communicating with the flow channel, and the heat sink pin is configured to be inserted into the plug hole to contact with the cooling medium.

44. The controller according to claim 38, characterized in that The box body is also provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are communicated with the flow channel.

45. A vehicle, characterized in that: The electronic device comprises any one of claims 1 to 14 or the controller comprises any one of claims 15 to 44.

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