Electric device modules, motor controllers and vehicles

Abstract

The present disclosure relates to an electrical device module, a motor controller and a vehicle, wherein the electrical device comprises a first electrical device body, a first connection terminal and a second connection terminal, wherein the first connection terminal comprises a first connection portion protruding from the first electrical device body along a first direction, and the second connection terminal comprises a second connection portion protruding from the first electrical device body along a first direction, wherein the first connection portion and the second connection portion are stacked along a second direction intersecting with the first direction, and the first connection portion and the second connection portion are both multiple, and the multiple first connection portions and the multiple second connection portions are all arranged at intervals. Through the above technical solution, the magnetic fields excited on the first connection portion and the second connection portion can at least partially offset each other, reduce the stray inductance on the electrical device, and improve the stability and anti-interference ability of the electrical device, and the structure of the electrical device allows the current data of the electrical device to be collected in a working state, which is conducive to accurate evaluation and analysis of the electrical device.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electric devices, and in particular, to an electric device module, a motor controller and a vehicle. Background Art

[0002] Electrical components in AC circuits will inevitably generate stray inductance under the electromagnetic induction effect. The existence of stray inductance can cause problems such as loss or signal attenuation in the circuit system, reduce the stability of the electrical components themselves, and affect the functions of other components in the circuit. How to reduce the stray inductance of electrical components has become a problem to be solved in the field of electrical components. Summary of the invention

[0003] The purpose of the present disclosure is to provide an electric device module, a motor controller and a vehicle to solve the problems existing in the related art.

[0004] In order to achieve the above-mentioned object, the present disclosure provides an electrical device in a first aspect, comprising a first electrical device body, a first connection terminal and a second connection terminal, wherein the first connection terminal comprises a first connection portion protruding from the first electrical device body along a first direction, the second connection terminal comprises a second connection portion protruding from the first electrical device body along the first direction, and the first connection portion and the second connection portion are stacked along a second direction intersecting the first direction;

[0005] There are multiple first connection parts and multiple second connection parts, and the multiple first connection parts and the multiple second connection parts are arranged at intervals.

[0006] Optionally, a length of the first connection portion in a third direction is equal to a length of the second connection portion in the third direction, wherein the third direction intersects with the first direction and the second direction.

[0007] Optionally, a length of one of the first connection portion and the second connection portion in the first direction is greater than a length of the other of the first connection portion and the second connection portion in the first direction.

[0008] Optionally, a distance between the first connection portion and the second connection portion in the second direction is less than or equal to 1 mm.

[0009] Optionally, the electrical device further includes a first insulating sheet, at least a portion of the first insulating sheet is located between the first connecting portion and the second connecting portion, and there are multiple first insulating sheets, which are stacked along the second direction.

[0010] A second aspect of the present disclosure provides an electrical device module, including a first electrical device and a second electrical device, wherein the first electrical device is electrically connected to the second electrical device, and at least one of the first electrical device and the second electrical device is the above-mentioned electrical device.

[0011] Optionally, the first electrical component is the electrical component, and the electrical component module further includes a second electrical component;

[0012] The second electrical device comprises a second electrical device body, a third connection terminal and a fourth connection terminal, wherein the third connection terminal comprises a third connection portion protruding from the second electrical device body along the first direction, and the fourth connection terminal comprises a fourth connection portion protruding from the second electrical device body along the first direction, and the third connection portion and the fourth connection portion are stacked along the second direction;

[0013] The first connection portion is connected to the third connection portion, and the second connection portion is connected to the fourth connection portion.

[0014] Optionally, the third connection part and the fourth connection part both extend along a third direction, a plurality of the first connection parts and a plurality of the second connection parts are arranged in one-to-one correspondence, a plurality of the first connection parts and a plurality of the second connection parts are both arranged at intervals along the third direction, the third connection part is connected to a plurality of the first connection parts, and the fourth connection part is connected to a plurality of the second connection parts, wherein the third direction intersects with both the first direction and the second direction.

[0015] Optionally, the number of the plurality of first connection parts, the plurality of the second connection parts, the plurality of the third connection parts and the plurality of the fourth connection parts is the same, and the plurality of the first connection parts, the plurality of the second connection parts, the plurality of the third connection parts and the plurality of the fourth connection parts are all arranged at intervals along a third direction, each of the first connection parts is connected to one of the third connection parts, and each of the second connection parts is connected to one of the fourth connection parts, wherein the third direction intersects with both the first direction and the second direction.

[0016] Optionally, the length of each first connection portion in the third direction is the same as the length of the third connection portion connected to the first connection portion in the third direction, and the length of each second connection portion in the third direction is the same as the length of the fourth connection portion connected to the second connection portion in the third direction.

[0017] Optionally, the electrical device module further includes a first insulating sheet and a second insulating sheet, and at least a portion of the second insulating sheet is located between the third connecting portion and the fourth connecting portion;

[0018] A projection of at least one of the first connection portion and the second connection portion on the first insulating sheet is completely located within the first insulating sheet, and a projection of at least one of the third connection portion and the fourth connection portion on the second insulating sheet is completely located within the second insulating sheet.

[0019] Optionally, one end of the first insulating sheet away from the first electrical device body extends between the third connecting part and the fourth connecting part and is stacked with the second insulating sheet along the second direction; and / or one end of the second insulating sheet away from the second electrical device body extends between the first connecting part and the second connecting part and is stacked with the first insulating sheet along the second direction.

[0020] Optionally, the end surface of the first connection part away from the first electrical device body is connected to the end surface of the third connection part away from the second electrical device body, and the end surface of the second connection part away from the first electrical device body is connected to the end surface of the fourth connection part away from the second electrical device body.

[0021] Optionally, two opposite surfaces of the first connection portion along the second direction are respectively flush with two opposite surfaces of the third connection portion along the second direction, and two opposite surfaces of the second connection portion along the second direction are respectively flush with two opposite surfaces of the fourth connection portion along the second direction.

[0022] Optionally, an end of the first connection portion away from the first electrical device body overlaps with an end of the third connection portion away from the second electrical device body, and an end of the second connection portion away from the first electrical device body overlaps with an end of the fourth connection portion away from the second electrical device body.

[0023] Optionally, a length of an overlapping region between the first connection portion and the third connection portion in the first direction is 2 mm-8 mm, and a length of an overlapping region between the second connection portion and the fourth connection portion in the first direction is 2 mm-8 mm.

[0024] Optionally, there is a gap between an end of the first connection portion away from the first electrical device body and an end of the third connection portion away from the second electrical device body, and the gap is configured to at least partially expose a connection between the second connection portion and the fourth connection portion;

[0025] The first electrical device and the second electrical device assembly further include an intermediate connector, one end of which is connected to the first connecting portion, and the other end of which is connected to the third connecting portion.

[0026] Optionally, the intermediate connecting member is located at a side of the gap away from the first connecting portion and the third connecting portion and away from the second connecting portion and the fourth connecting portion, and the intermediate connecting member includes:

[0027] A U-shaped main body, wherein the opening of the U-shaped main body faces the gap, and the U-shaped main body comprises a first side wall and a second side wall which are arranged opposite to each other;

[0028] a first overlapping portion, wherein one end of the first overlapping portion is connected to the first side wall, and the other end is used to overlap the first connecting portion, and the inner side wall of the first side wall is flush with an end surface of the first connecting portion away from the first electrical device body;

[0029] A second overlapping portion, one end of which is connected to the second side wall, and the other end is used to overlap the third connecting portion, and the inner side wall of the second side wall is flush with the end surface of the third connecting portion away from the second electrical device body.

[0030] A third aspect of the present disclosure provides a motor controller, comprising the above-mentioned electrical device module, wherein one of the first electrical device and the second electrical device is a capacitor, the other of the first electrical device and the second electrical device is a power module, and the capacitor is used to be electrically connected to a power battery.

[0031] A fourth aspect of the present disclosure provides a vehicle, comprising the above-mentioned motor controller.

[0032] Through the above technical solution, the magnetic fields excited on the first connecting part and the second connecting part can offset each other, thereby reducing the stray inductance on the electrical device and improving the stability and anti-interference ability of the electrical device. In addition, the multiple first connecting parts and the multiple second connecting parts on the electrical device are arranged at intervals, which can allow the current data of the electrical device in the working state to be collected, which is conducive to accurate evaluation and analysis of the electrical device.

[0033] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0035] Figure 1 is a perspective view of an electrical device provided by an exemplary embodiment of the present disclosure;

[0036] Figure 2 is a perspective view of an electrical device provided by another exemplary embodiment of the present disclosure;

[0037] Figure 3 is a three-dimensional diagram of an electrical device module provided by an exemplary embodiment of the present disclosure;

[0038] Figure 4 is a side view of an electrical device module provided by an exemplary embodiment of the present disclosure;

[0039] Figure 5 Yes Yes Figure 4 An enlarged view of part "A" in FIG.

[0040] Figure 6 is a side view of an electrical device module provided by another exemplary embodiment of the present disclosure;

[0041] Figure 7 Yes Yes Figure 6 A magnified view of part "B" in FIG.

[0042] Figure 8 is a three-dimensional diagram of an electrical device module provided by another exemplary embodiment of the present disclosure;

[0043] Fig. 9 is a side view of an electrical device module provided by another exemplary embodiment of the present disclosure;

[0044] Fig.10 Yes Yes Fig. 9 Enlarged view of section "C" in the figure;

[0045] Fig.11 is a perspective view of an intermediate connector of an electrical device module provided by yet another exemplary embodiment of the present disclosure.

[0046] Description of Reference Numerals

[0047] 100-electrical device module; 10-first electrical device; 1-first electrical device body; 11-first connecting terminal; 111-first connecting portion; 12-second connecting terminal; 121-second connecting portion; 13-first insulating sheet; 20-second electrical device; 2-second electrical device body; 21-third connecting terminal; 211-third connecting portion; 22-fourth connecting terminal; 221-fourth connecting portion; 23-second insulating sheet; 3-gap; 4-intermediate connecting member; 41-U-shaped main body; 411-first side wall; 412-second side wall; 42-first overlapping portion; 43-second overlapping portion. DETAILED DESCRIPTION

[0048] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0049] In the present disclosure, unless otherwise stated, the directional words used, such as "first direction, second direction, and third direction", are directions defined for the convenience of describing the structure of the electrical device module, and do not limit the electrical device module. Figure 1 , Figure 3 , Figure 4 , Figure 6 as well as Fig. 9 The first and second directions are indicated by the arrows in the middle, and the third direction can be referred to Figure 1 and Figure 3 In the third direction indicated by the arrow, "inside" and "outside" refer to the inside and outside of the outline of the relevant parts. In addition, it should be noted that the terms such as "first" and "second" are used to distinguish one element from another element and do not have order and importance. In addition, in the description with reference to the drawings, the same mark in different drawings represents the same element.

[0050] In the related art, when an electrical device is connected to an AC circuit, the electromagnetic induction effect of the AC current will excite stray inductance at the connection part and other locations of the electrical device. For example, the electrical device may be a capacitor arranged in a motor controller of a vehicle. The capacitor in the motor controller is connected in parallel to a power module to absorb the peak voltage in the circuit. However, the alternating current on both sides of the capacitor can easily excite stray inductance at the connection part of the capacitor. The stray inductance will cause the voltage fluctuation to increase and cause damage to the power module, thereby affecting the safety of the vehicle.

[0051] In view of this, if Figures 1 to 11 As shown, the first aspect of the present disclosure provides an electrical device, including a first electrical device body 1, a first connecting terminal 11 and a second connecting terminal 12, the first connecting terminal 11 includes a first connecting portion 111 protruding from the first electrical device body 1 along a first direction, the second connecting terminal 12 includes a second connecting portion 121 protruding from the first electrical device body 1 along the first direction, the first connecting portion 111 and the second connecting portion 121 are stacked along a second direction intersecting with the first direction, wherein the first connecting portion 111 and the second connecting portion 121 are both multiple, and the multiple first connecting portions 111 and the multiple second connecting portions 121 are all arranged at intervals.

[0052] In the electrical device provided in the above embodiment, the electrical device is connected in the circuit through the first connection part 111 and the second connection part 121. When the electrical device is connected to the AC circuit, the current direction on the first connection part 111 and the second connection part 121 is constantly changing, and the current flow directions on the first connection part 111 and the second connection part 121 are always opposite. It is worth noting that the current flow direction mentioned in the present disclosure does not refer to the flow direction of the current in three-dimensional space, but refers to the circuit flow direction of the current in the flow path with the first electrical device body 1 as the starting point. For example, when the current on the first connection part 111 on the electrical device flows from the first electrical device body 1 to the external load device connected thereto, the current on the second connection part 121 flows from the external load device to the first electrical device body 1, that is, the current flow directions on the aforementioned first connection part 111 and the second connection part 121 are opposite.

[0053] Since the currents flowing in the first connection portion 111 and the second connection portion 121 are always in opposite directions, the directions of the magnetic fields excited in the first connection portion 111 and the second connection portion 121 are also opposite. Figure 1 As shown, the first connection part 111 and the second connection part 121 are stacked in the second direction, so that the magnetic fields excited on the first connection part 111 and the second connection part 121 can at least partially offset each other, thereby reducing the stray inductance on the electrical device and improving the stability and anti-interference ability of the electrical device.

[0054] In order to detect the working state of an electrical device in the related art, it is usually necessary to collect current data on the electrical device. In the electrical device provided in the embodiment of the present disclosure, there are multiple first connection parts 111 and second connection parts 121 on the electrical device, and the multiple first connection parts 111 and the multiple second connection parts 121 are arranged at intervals. When testing the current on the first connection parts 111 and the second connection parts 121 on the above-mentioned electrical device, a clamp ammeter can be used to detect the current of the electrical device in the working state. Figure 3 As shown, since the plurality of first connection parts 111 are arranged at intervals, and the plurality of second connection parts 121 are arranged at intervals, the gaps between the adjacent first connection parts 111 and second connection parts 121 in the third direction can allow the detection head of the clamp ammeter to surround the single first connection part 111 and the second connection part 121, so as to collect data of the AC current on the single first connection part 111 and the second connection part 121. It can be seen that the electrical device can allow the current on the first connection part 111 and the second connection part 121 to be detected when the electrical device is connected to the AC circuit, and there is no need to electrically connect other detection devices or lines to the AC circuit, thereby reducing the impact on the AC circuit, which is conducive to accurate evaluation and analysis of the electrical device.

[0055] As an exemplary implementation scenario, the above-mentioned electrical device can be a capacitor, which can be applied to the motor controller of the vehicle, and the first connection part 111 and the second connection part 121 of the capacitor can be connected to the power module in the motor controller. Since the magnetic field generated on the first connection part 111 can at least partially offset the magnetic field generated by the second connection part 121, the stray inductance on the capacitor can be reduced, making the "blocking DC and passing AC" function of the capacitor more stable, and can effectively absorb the peak voltage in the circuit, stabilize the voltage change between the power module and the battery pack of the vehicle, thereby improving the stability of the vehicle power system and ensuring the safety of the vehicle. Furthermore, the capacitor has multiple first connection parts 111 and multiple second connection parts 121, and the multiple first connection parts 111 and multiple second connection parts 121 are all arranged at intervals, allowing the inspector to detect the current on the first connection part 111 and the second connection part 121 when the capacitor and the power module are in a connected state, and can respectively detect the current on a single pair of the first connection part 111 and the second connection part 121, and combine the detection of the current on multiple pairs of the first connection parts 111 and the second connection parts 121, and obtain data information between multiple groups of capacitors and power modules, so as to accurately detect and evaluate the function of the motor controller, which is beneficial to improving the functionality and safety of the motor controller.

[0056] Through the above technical solution, the magnetic fields excited on the first connection part 111 and the second connection part 121 can at least partially offset each other, thereby reducing the stray inductance on the electrical device and improving the stability and anti-interference ability of the electrical device. In addition, the multiple first connection parts 111 and the multiple second connection parts 121 on the electrical device are arranged at intervals, which can allow the current data of the electrical device in the working state to be collected, which is conducive to accurate evaluation and analysis of the electrical device.

[0057] The above-mentioned electrical device may be any active device or passive device. As an example of an active device, the electrical device may be an electron tube or a transistor, etc. As an example of a passive device, the electrical device may be a resistor, a capacitor, an inductor, a converter, a gradienter, a matching network, a resonator, a filter or a mixer, etc. The present disclosure does not specifically limit the specific structure and function of the electrical device.

[0058] The first connection portion 111 and the second connection portion 121 both extend out of the housing along the first direction. Optionally, the length of the first connection portion 111 in the third direction may be equal to the length of the second connection portion 121 in the third direction, where the third direction intersects the first direction and the second direction. In this embodiment, the first connection portion 111 and the second connection portion 121 have the same length in the third direction, and the magnetic fields generated on the first connection portion 111 and the second connection portion 121 have a high degree of overlap, so that they can offset each other as much as possible, thereby minimizing the stray inductance on the electrical device.

[0059] The smaller the spacing between the first connection part 111 and the second connection part 121 in the second direction, the higher the overlap of the magnetic fields generated on the first connection part 111 and the second connection part 121, and the better the mutual cancellation effect. Theoretically, when the first connection part 111 and the second connection part 121 completely overlap, the magnetic fields on the first connection part 111 and the second connection part 121 can be completely cancelled. In practical applications, in order to avoid the position interference of the first connection part 111 and the second connection part 121, optionally, the spacing between the first connection part 111 and the second connection part 121 in the second direction can be less than or equal to 1mm. In this embodiment, the first connection part 111 and the second connection part 121 can avoid position interference and realize their respective arrangements. It is possible to ensure that the magnetic fields excited on the first connection part 111 and the second connection part 121 have a good cancellation effect. Optionally, the spacing between the first connection part 111 and the second connection part 121 in the second direction can be 0.5mm.

[0060] In order to facilitate the distinction between the first connection portion 111 and the second connection portion 121, as shown in FIG. Figure 1 , Figure 5 and Figure 7 As shown, optionally, the length of one of the first connection portion 111 and the second connection portion 121 in the first direction is greater than the length of the other of the first connection portion 111 and the second connection portion 121 in the first direction. When the first connection portion 111 and the second connection portion 121 are respectively connected to the external load device, the operator can distinguish the relationship between the first connection portion 111 and the second connection portion 121 according to the different lengths of the first connection portion 111 and the second connection portion 121 in the first direction, thereby ensuring that the first connection portion 111 and the second connection portion 121 can be correctly connected to the external load device. Especially in the embodiment where the electrical device is connected to the high-voltage circuit, when the connection between the first connection portion 111 and the second connection portion 121 of the electrical device and the high-voltage circuit is misconnected, it is easy to cause the breakdown and failure of the electrical device. Therefore, the first connection portion 111 and the second connection portion 121 in the above embodiment have different lengths in the first direction, which is conducive to the distinction and identification of the operator, so as to perform the correct installation operation.

[0061] Optionally, the electrical device may further include a first insulating sheet 13, at least part of which is located between the first connecting portion 111 and the second connecting portion 121, so as to separate the current between the first connecting portion 111 and the second connecting portion 121 and avoid a short circuit between the first connecting portion 111 and the second connecting portion 121.

[0062] In the above embodiment, optionally, the first insulating sheet 13 can be multiple sheets, and the multiple first insulating sheets 13 are stacked along the second direction to improve the insulation performance between the first connecting part 111 and the second connecting part 121, avoid breakdown and short circuit between the first connecting part 111 and the second connecting part 121, and improve the safety of the electrical device.

[0063] like Figures 3 to 10 As shown, the second aspect of the present disclosure provides an electrical device module 100, which includes a first electrical device 10 and a second electrical device 20, wherein the first electrical device 10 is electrically connected to the second electrical device 20, and at least one of the first electrical device 10 and the second electrical device 20 is the above-mentioned electrical device.

[0064] In the above-mentioned electrical device module 100, the first electrical device 10 and the second electrical device 20 may be electrical devices with the same structure and function, or may be electrical devices with different structures and functions. As an exemplary embodiment, the first electrical device 10 may be a capacitor, and the second electrical device 20 may be a power module. The capacitor and the power module may both have the first connection portion 111 and the second connection portion 121 included in the above-mentioned electrical device, and the first connection portion 111 and the second connection portion 121 in the capacitor are stacked along the second direction, and the first connection portion 111 and the second connection portion 121 of the power module are stacked along the second direction. It can be seen that the electrical device included in the electrical device module 100 in the embodiment of the present disclosure can be used to refer to electrical devices with different structures and functions, and the present disclosure does not make specific restrictions on this.

[0065] As an exemplary embodiment, Figure 3 As shown, optionally, the first electrical device 10 is the aforementioned electrical device, and the electrical device module 100 also includes a second electrical device 20, the second electrical device 20 includes a second electrical device body 2, a third connection terminal 21 and a fourth connection terminal 22, the third connection terminal 21 includes a third connection portion 211 protruding from the second electrical device body 2 along the first direction, the fourth connection terminal 22 includes a fourth connection portion 221 protruding from the second electrical device body 2 along the first direction, the third connection portion 211 and the fourth connection portion 221 are stacked along the second direction, the first connection portion 111 is connected to the third connection portion 211, and the second connection portion 121 is connected to the fourth connection portion 221.

[0066] In the above embodiment, the first electrical device 10 and the second electrical device 20 are electrically connected, and the third connection portion 211 and the fourth connection portion 221 of the second electrical device 20 can be adaptively connected to the first connection portion 111 and the second connection portion 111 of the first electrical device 10. In addition, since the third connection portion 211 and the fourth connection portion 221 are stacked along the second direction, the magnetic fields excited on the third connection portion 211 and the fourth connection portion 221 can at least partially offset each other, thereby reducing the stray inductance on the second electrical device 20 and improving the stability and anti-interference ability of the second electrical device 20. Therefore, the above electrical device module 100 has good stability and anti-interference ability.

[0067] As an exemplary embodiment, Figure 8 As shown, optionally, the third connection part 211 and the fourth connection part 221 can both extend along the third direction, the multiple first connection parts 111 and the multiple second connection parts 121 are arranged one by one, the multiple first connection parts 111 and the multiple second connection parts 121 are arranged at intervals along the third direction, the third connection part 211 is connected to the multiple first connection parts 111, and the fourth connection part 221 is connected to the multiple second connection parts 121, wherein the third direction intersects with both the first direction and the second direction. In this embodiment, the multiple first connection parts 111 are arranged at intervals along the third direction, and the third connection part 211 extends along the third direction, that is, the third connection part 211 can be electrically connected to the multiple first connection parts 111 at the same time, and similarly, the fourth connection part 221 can be electrically connected to the multiple second connection parts 121 at the same time.

[0068] As another exemplary embodiment, Figures 3 to 7 As shown, optionally, the number of multiple first connection parts 111, multiple second connection parts 121, multiple third connection parts 211 and multiple fourth connection parts 221 is the same, and the multiple first connection parts 111, multiple second connection parts 121, multiple third connection parts 211 and multiple fourth connection parts 221 are all arranged at intervals along the third direction, each first connection part 111 is connected to a third connection part 211, and each second connection part 121 is connected to a fourth connection part 221, wherein the third direction intersects with both the first direction and the second direction.

[0069] In the above embodiment, if Figure 3As shown, optionally, the length of each first connection portion 111 in the third direction is the same as the length of the third connection portion 211 connected to the first connection portion 111 in the third direction, so that the current flow area on the first connection portion 111 and the third connection portion 211 will not change suddenly, thereby improving the stability of the current flow. Optionally, the length of each second connection portion 121 in the third direction can be the same as the length of the fourth connection portion 221 connected to the second connection portion 121 in the third direction, thereby improving the stability of the current flow between the second connection portion 121 and the fourth connection portion 221. In addition, the length of the first connection portion 111 and the third connection portion 211 in the third direction is the same, so that the inductance on the first connection portion 111 and the third connection portion 211 is the same, and the length of the second connection portion 121 and the fourth connection portion 221 in the third direction is the same, so that the inductance on the second connection portion 121 and the fourth connection portion 221 is the same, which is conducive to the mutual cancellation of the inductance and reduces the stray inductance of the electrical device module 100.

[0070] Optionally, the length of the first connection portion 111 in the third direction, the length of the second connection portion 121 in the third direction, the length of the third connection portion 211 in the third direction, and the length of the fourth connection portion 221 in the third direction can all be the same, further promoting the cancellation of stray inductance and improving the performance of the electrical device module 100.

[0071] In the embodiment including the insulating sheet, the electrical device module 100 may optionally include a first insulating sheet 13 and a second insulating sheet 23, at least a portion of the second insulating sheet 23 is located between the third connection portion 211 and the fourth connection portion 221, the projection of at least one of the first connection portion 111 and the second connection portion 121 on the first insulating sheet 13 is completely located in the first insulating sheet 13, and the projection of at least one of the third connection portion 211 and the fourth connection portion 221 on the second insulating sheet 23 is completely located in the second insulating sheet 23. The electrical device module 100 in this embodiment ensures complete insulation between the first connection portion 111 and the second connection portion 121, and complete insulation between the third connection portion 211 and the fourth connection portion 221, thereby avoiding short circuits inside the electrical device module 100, and thus providing good safety for the electrical device module 100.

[0072] In the above embodiment, if Figure 5 , Figure 7 as well as Fig.10As shown, optionally, one end of the first insulating sheet 13 away from the first electrical device body 1 extends between the third connection portion 211 and the fourth connection portion 221 and is stacked along the second direction with the second insulating sheet 23. Alternatively, one end of the second insulating sheet 23 away from the second electrical device body 2 can extend between the first connection portion 111 and the second connection portion 121 and be stacked along the second direction with the first insulating sheet 13. That is, the first insulating sheet 13 and the second insulating sheet 23 are at least partially stacked, thereby improving the insulation performance and avoiding voltage breakdown.

[0073] The first electrical device 10 and the second electrical device 20 can be electrically connected in a variety of ways. The connection terminals of the electrical devices in the related art are usually connected to the connection terminals of the external load device by bolts. Since the bolt connection needs to occupy a certain space on the connection terminals, the connection terminals have the problem of large size. The large size of the connection terminals leads to a long current path, which leads to a large intensity of the magnetic field generated by the current. In order to improve the stability of the motor controller, optionally, the first connection part 111 and the third connection part 211 can be connected by a fusion welding process, and the second connection part 121 and the fourth connection part 221 can be connected by a fusion welding process. The fusion welding process here refers to any process such as laser welding, ultrasonic welding or high-energy particle welding. For example, a laser welding process can be used. The present disclosure does not make specific restrictions on this.

[0074] Compared with the technical solutions of the related art, the electrical device module 100 in this embodiment can allow the screw holes on the first connection part 111, the second connection part 121, the third connection part 211 and the fourth connection part 221 to be eliminated, thereby reducing the sizes of the first connection part 111, the second connection part 121, the third connection part 211 and the fourth connection part 221, which is beneficial to shortening the current path between the first electrical device 10 and the second electrical device 20, making the structure of the electrical device module 100 more compact, reducing the generation of stray inductance, and thus improving the overall stability and anti-interference ability of the electrical device module 100.

[0075] As an exemplary embodiment, Figures 3 to 5 As shown, optionally, the end face of the first connection part 111 away from the first electrical device body 1 can be butted with the end face of the third connection part 211 away from the second electrical device body 2, and the end face of the second connection part 121 away from the first electrical device body 1 can be butted with the end face of the fourth connection part 221 away from the second electrical device body 2, so as to effectively improve the stability of the connection by using a surface-to-surface connection method. During the connection process, the end face of the first connection part 111 away from the first electrical device body 1 and the end face of the third connection part 211 away from the second electrical device body 2 need to be as flat as possible to reduce the gap between the butt surfaces. For example, the gap between the two end faces can be no more than 0.2 mm to improve the stability of the connection.

[0076] In the above embodiments, optionally, the two surfaces of the first connecting part 111 opposite to each other along the second direction are respectively flush with the two surfaces of the third connecting part 211 opposite to each other along the second direction, and the two surfaces of the second connecting part 121 opposite to each other along the second direction are respectively flush with the two surfaces of the fourth connecting part 221 opposite to each other along the second direction, so as to ensure that the current will not suddenly change during the flow process, improve the stability of the current flow, and further improve the stability of the connection.

[0077] As another exemplary embodiment, Figure 6 and Figure 7 As shown, optionally, one end of the first connection part 111 away from the first electrical device body 1 overlaps with one end of the third connection part 211 away from the second electrical device body 2, and one end of the second connection part 121 away from the first electrical device body 1 overlaps with one end of the fourth connection part 221 away from the second electrical device body 2.

[0078] For current stability, optionally, the length of the overlapped area between the first connection part 111 and the third connection part 211 in the first direction is 2 mm-8 mm, and the length of the overlapped area between the second connection part 121 and the fourth connection part 221 in the first direction is 2 mm-8 mm. In this embodiment, the current flow between the first connection part 111 and the third connection part 211 and the second connection part 121 and the fourth connection part 221 is stable, and processing space can be reserved for the melting process between the first connection part 111 and the third connection part 211 and between the second connection part 121 and the fourth connection part 221.

[0079] As another exemplary embodiment, Figures 8 to 11 As shown, optionally, there is a gap 3 between one end of the first connection part 111 away from the first electrical device body 1 and one end of the third connection part 211 away from the second electrical device body 2, and the gap 3 is constructed to at least partially expose the connection between the second connection part 121 and the fourth connection part 221, and the first electrical device 10 and the second electrical device 20 components also include an intermediate connector 4, one end of the intermediate connector 4 is connected to the first connection part 111, and the other end of the intermediate connector 4 is connected to the third connection part 211.

[0080] In the above embodiment, there is a gap 3 between the end of the first connection part 111 away from the first electrical device body 1 and the end of the third connection part 211 away from the second electrical device body 2, so that the energy source of the melting process can scan downward from the upper side of the first connection part 111 and the third connection part 211, and scan to the connection between the second connection part 121 and the fourth connection part 221 through the gap 3. After the connection between the second connection part 121 and the fourth connection part 221 is melt-processed, there is no need to adjust or change the position of the electrical device module 100 or the energy source in a large range, and the melting process between the intermediate connection member 4 and the first connection part 111 and the third connection member can be achieved respectively. It can be seen that the above embodiment provides an electrical device module 100 that is easy to process. Without adjusting or changing the position of the electrical device module 100 or the energy source in a large range, the melting connection between the second connection part 121 and the fourth connection part 221 and the melting connection between the intermediate connection member 4 and the first connection part 111 and the third connection member can be achieved respectively, thereby simplifying the processing process and improving production efficiency.

[0081] like Fig.10 and Fig.11 As shown, optionally, the intermediate connector 4 can be located on the side of the gap 3 away from the first connection part 111 and the third connection part 211 and away from the second connection part 121 and the fourth connection part 221, and the intermediate connector 4 includes a U-shaped main body 41, a first overlapping part 42 and a second overlapping part 43, wherein the opening of the U-shaped main body 41 faces the gap 3, and the U-shaped main body 41 includes a first side wall 411 and a second side wall 412 arranged opposite to each other, one end of the first overlapping part 42 is connected to the first side wall 411, and the other end is used to overlap with the first connection part 111, and the inner side wall of the first side wall 411 is flush with the end surface of the first connection part 111 away from the first electrical device body 1, one end of the second overlapping part 43 is connected to the second side wall 412, and the other end is used to overlap with the third connection part 211, and the inner side wall of the second side wall 412 is flush with the end surface of the third connection part 211 away from the second electrical device body 2.

[0082] In the above embodiment, the inner wall of the first side wall 411 is flush with the end surface of the first connection part 111 away from the first electrical device body 1, and the inner wall of the second side wall 412 is flush with the end surface of the third connection part 211 away from the second electrical device body 2, which can facilitate the operator to position the first connection part 111 and the first overlap part 42 and the second overlap part 43 and the third connection part 211, so as to ensure that the energy source of the melting processing can scan the overlapping area of ​​the first connection part 111 and the first overlap part 42 and the overlapping area of ​​the second overlap part 43 and the third connection part 211 respectively, to avoid the energy source scanning to the non-overlapping position and causing the first connection part 111 or the third connection part 211 to break through, thereby ensuring the accuracy and safety of the processing.

[0083] A third aspect of the present disclosure provides a motor controller, including the above-mentioned electrical device module 100, one of the first electrical device 10 and the second electrical device 20 is a capacitor, the other of the first electrical device 10 and the second electrical device 20 is a power module, and the capacitor is used to be electrically connected to a power battery.

[0084] The fourth aspect of the present disclosure provides a vehicle, including the above-mentioned motor controller. The vehicle here can be an electric vehicle, a hybrid vehicle or a new energy vehicle, etc., and the present disclosure does not make specific restrictions on this. Since the motor controller provided by the embodiment of the present disclosure has the advantages of strong anti-interference ability and high stability, it can facilitate the operator to detect the current of the capacitor or power module, and the vehicle using the above-mentioned motor controller can have good stability and safety.

[0085] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0086] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0087] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. An electrical device module, characterized in that: comprising a first electrical device and a second electrical device, wherein the first electrical device is electrically connected to the second electrical device; The first electrical device comprises a first electrical device body, a first connection terminal and a second connection terminal, the first connection terminal comprises a first connection portion protruding from the first electrical device body along a first direction, the second connection terminal comprises a second connection portion protruding from the first electrical device body along the first direction, the first connection portion and the second connection portion are stacked along a second direction intersecting the first direction, wherein the first connection portion and the second connection portion are both multiple, and the multiple first connection portions and the multiple second connection portions are all arranged at intervals; The second electrical device comprises a second electrical device body, a third connection terminal and a fourth connection terminal, wherein the third connection terminal comprises a third connection portion protruding from the second electrical device body along the first direction, and the fourth connection terminal comprises a fourth connection portion protruding from the second electrical device body along the first direction, and the third connection portion and the fourth connection portion are stacked along the second direction; The first connection portion is connected to the third connection portion, and the second connection portion is connected to the fourth connection portion; There is a gap between an end of the first connection portion away from the first electrical device body and an end of the third connection portion away from the second electrical device body, and the gap is configured to at least partially expose a connection between the second connection portion and the fourth connection portion; The electrical device module further comprises an intermediate connector, one end of which is connected to the first connector, and the other end of which is connected to the third connector; The intermediate connecting member is located at a side of the gap away from the first connecting portion and the third connecting portion and away from the second connecting portion and the fourth connecting portion, and the intermediate connecting member includes a U-shaped main body, a first overlapping portion and a second overlapping portion; The opening of the U-shaped main body is toward the gap, and the U-shaped main body includes a first side wall and a second side wall which are arranged opposite to each other; One end of the first overlapping portion is connected to the first side wall, and the other end is used to overlap the first connecting portion, and the inner side wall of the first side wall is flush with the end surface of the first connecting portion away from the first electrical device body; One end of the second overlapping portion is connected to the second side wall, and the other end is used to overlap the third connecting portion, and the inner side wall of the second side wall is flush with the end surface of the third connecting portion away from the second electrical device body.

2. The electrical device module according to claim 1, characterized in that: A length of the first connection portion in a third direction is equal to a length of the second connection portion in the third direction, wherein the third direction intersects with the first direction and the second direction.

3. The electrical device module according to claim 1, characterized in that: A length of one of the first connection portion and the second connection portion in the first direction is greater than a length of the other of the first connection portion and the second connection portion in the first direction.

4. The electrical device module according to claim 1, characterized in that: A distance between the first connection portion and the second connection portion in the second direction is less than or equal to 1 mm.

5. The electrical device module according to claim 1, characterized in that: The electrical device further includes a first insulating sheet, at least a portion of which is located between the first connecting portion and the second connecting portion, and the first insulating sheet is composed of a plurality of sheets, which are stacked along the second direction.

6. The electrical device module according to claim 1, characterized in that: The third connection part and the fourth connection part both extend along a third direction, a plurality of the first connection parts and a plurality of the second connection parts are arranged in one-to-one correspondence, a plurality of the first connection parts and a plurality of the second connection parts are both arranged at intervals along the third direction, the third connection part is connected to a plurality of the first connection parts, and the fourth connection part is connected to a plurality of the second connection parts, wherein the third direction intersects with both the first direction and the second direction.

7. The electrical device module according to claim 1, characterized in that: The number of the plurality of first connection parts, the plurality of second connection parts, the plurality of third connection parts and the plurality of fourth connection parts is the same, and the plurality of first connection parts, the plurality of second connection parts, the plurality of third connection parts and the plurality of fourth connection parts are all arranged at intervals along the third direction, each of the first connection parts is connected to one of the third connection parts, and each of the second connection parts is connected to one of the fourth connection parts, wherein the third direction intersects with both the first direction and the second direction.

8. The electrical device module according to claim 7, characterized in that: The length of each first connection portion in the third direction is the same as the length of the third connection portion connected to the first connection portion in the third direction, and the length of each second connection portion in the third direction is the same as the length of the fourth connection portion connected to the second connection portion in the third direction.

9. The electrical device module according to claim 1, characterized in that: The electrical device module further includes a first insulating sheet and a second insulating sheet, at least a portion of the second insulating sheet is located between the third connecting portion and the fourth connecting portion; A projection of at least one of the first connection portion and the second connection portion on the first insulating sheet is completely located within the first insulating sheet, and a projection of at least one of the third connection portion and the fourth connection portion on the second insulating sheet is completely located within the second insulating sheet.

10. The electrical device module according to claim 9, characterized in that: One end of the first insulating sheet away from the first electrical device body extends between the third connecting part and the fourth connecting part and is stacked with the second insulating sheet along the second direction; and / or one end of the second insulating sheet away from the second electrical device body extends between the first connecting part and the second connecting part and is stacked with the first insulating sheet along the second direction.

11. A motor controller, characterized in that: It comprises an electrical device module as described in any one of claims 1 to 10, wherein one of the first electrical device and the second electrical device is a capacitor, the other of the first electrical device and the second electrical device is a power module, and the capacitor is used to be electrically connected to a power battery.

12. A vehicle, characterized in that: Comprising the motor controller of claim 11.

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