Active circuit breaker, motor controller, electric assembly, and vehicle

Abstract

Disclosed in the present application are an active circuit breaker, a motor controller, an electric assembly and a vehicle. The active circuit breaker comprises: a conductive element assembly, which comprises a first conductive element and a second conductive element spaced apart from each other in the direction of width of the first conductive element; and a detonating device, which is provided with a conductive pin, the extension direction of the conductive pin being parallel to the direction of thickness of the first conductive element.

Description

Active circuit breaker, motor controller, electric assembly and vehicle

[0001] Cross-reference to Related Applications

[0002] The present application is based on the Chinese patent application No. 202411197874.0, filed on August 6, 2024, entitled "Active circuit breaker, motor controller, electric assembly and vehicle", and claims priority to the above-mentioned Chinese patent application, the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of motor controller, in particular to an active circuit breaker, a motor controller, an electric assembly and a vehicle. BACKGROUND

[0004] Currently, the protection of motor controller mainly relies on circuit breaker. When the circuit appears fault (overload problem such as short circuit), the circuit breaker is disconnected to protect the circuit. In order to ensure the response speed, the active circuit breaker is mainly used for protection at present, but when the active circuit breaker is broken by the detonating device, if the impact force is too large, the overall structure of the conductive sheet is easy to be directly hit away or broken, which will affect other structures of the motor controller. SUMMARY

[0005] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application proposes an active circuit breaker, which improves the reliability of the insulating base covering the conductive sheet and reduces the conductive sheet from being separated from the insulating base due to impact.

[0006] The present application also proposes a motor controller comprising the active circuit breaker described above.

[0007] The present application also proposes an electric assembly comprising the motor controller described above.

[0008] The present application also proposes a vehicle comprising the electric assembly described above.

[0009] According to the active circuit breaker of the present application, the active circuit breaker comprises a conductive sheet assembly, the conductive sheet assembly comprising a first conductive sheet and a second conductive sheet, the first conductive sheet and the second conductive sheet being arranged in a width direction of the first conductive sheet; a detonating device for impacting the first conductive sheet and the second conductive sheet to make the first conductive sheet and the second conductive sheet respectively disconnected; further comprising an insulating base, the conductive sheet assembly and the detonating device being arranged in the insulating base, a projection of the detonating device in a thickness direction of the first conductive sheet and / or the second conductive sheet being at least partially located in the insulating base.

[0010] According to the active circuit breaker of the embodiments of the present application, the explosion device and the conductive assembly are arranged on the insulating base, and the projection of the explosion device on the thickness direction of the conductive sheet is at least partially in the insulating base, so that the explosion device, the first conductive sheet and the second conductive sheet are jointly stressed, the stress limit is improved, and the occurrence of the first conductive sheet and the second conductive sheet being separated from the insulating base is further reduced.

[0011] In some embodiments of the present application, the projection of the explosion device on the thickness direction of the first conductive sheet and / or the second conductive sheet is completely located in the insulating base.

[0012] In some embodiments of the present application, the first conductive sheet and the second conductive sheet are at least partially embedded in the insulating base, the ratio between the length of the first conductive sheet in the insulating base and the total length of the first conductive sheet is between 0.6 and 0.85, and / or the ratio between the length of the second conductive sheet in the insulating base and the total length of the second conductive sheet is between 0.6 and 0.85.

[0013] In some embodiments of the present application, the thickness of the first conductive sheet is between 2.6 mm and 3.2 mm, the total thickness of the insulating base and the first conductive sheet wrapped on both sides of the thickness direction of the first conductive sheet is between 8 mm and 15 mm, and / or the thickness of the second conductive sheet is between 2.6 mm and 3.2 mm, the total thickness of the insulating base and the second conductive sheet wrapped on both sides of the thickness direction of the second conductive sheet is between 8 mm and 15 mm.

[0014] In some embodiments of the present application, the ratio between the total thickness of the insulating base and the first conductive sheet wrapped on both sides of the thickness direction of the first conductive sheet and the thickness of the first conductive sheet is between 2.5 and 5.77, and / or the ratio between the total thickness of the insulating base and the second conductive sheet wrapped on both sides of the thickness direction of the second conductive sheet and the thickness of the second conductive sheet is between 2.5 and 5.77.

[0015] In some embodiments of the present application, the insulating base comprises a first insulating layer and a second insulating layer, the first insulating layer and the second insulating layer are respectively arranged on both sides of the thickness direction of the first conductive sheet, and the thickness of at least one of the first insulating layer and the second insulating layer is greater than the thickness of the first conductive sheet, and / or the insulating base comprises a third insulating layer and a fourth insulating layer, the third insulating layer and the fourth insulating layer are respectively arranged on both sides of the thickness direction of the second conductive sheet, and the thickness of at least one of the third insulating layer and the fourth insulating layer is greater than the thickness of the second conductive sheet.

[0016] In some embodiments of the present application, the detonating device is arranged between the first conductive sheet and the second conductive sheet, and the detonating device has a first striker and a second striker, the first striker and the second striker are arranged along the width direction of the first conductive sheet to strike the first conductive sheet and the second conductive sheet respectively.

[0017] In some embodiments of the present application, the first conductive sheet is provided with a first through hole, and along the width direction of the first conductive sheet, the first conductive sheet is formed into a first weak part on the side of the first through hole facing the second conductive sheet, and is formed into a first safety part on the side of the first through hole facing away from the second conductive sheet, and the first striker is arranged to strike the first weak part; and / or, the second conductive sheet is provided with a second through hole, and along the width direction of the second conductive sheet, the second conductive sheet is formed into a second weak part on the side of the second through hole facing the first conductive sheet, and is formed into a second safety part on the side of the first through hole facing away from the first conductive sheet, and the second striker is arranged to strike the second weak part.

[0018] In some embodiments of the present application, the first through hole is a curve type protruding towards away from the detonating device; and / or, the second through hole is a curve type protruding towards away from the detonating device.

[0019] In some embodiments of the present application, the active circuit breaker further comprises: an insulating base, and the conductive sheet assembly and the detonating device are arranged on the insulating base.

[0020] In some embodiments of the present application, part of the first conductive sheet and the second conductive sheet is embedded in the insulating base, and along the length direction of the first conductive sheet, the first weak part is embedded in the insulating base and forms a first reinforcing part near one end of the length direction of the first conductive sheet, and a first exposed part is exposed outside the insulating base near the other end of the length direction of the first conductive sheet; and / or, along the length direction of the second conductive sheet, the second weak part is embedded in the insulating base and forms a second reinforcing part near one end of the length direction of the second conductive sheet, and a second exposed part is exposed outside the insulating base near the other end of the length direction of the second conductive sheet.

[0021] In some embodiments of the present application, a distance between an end of the first through hole away from the first exposed part and an end of the first conductive sheet close to the detonating device in the width direction is H1, a distance between an end of the first through hole away from the first reinforcing part and an end of the first conductive sheet close to the detonating device in the width direction is H2, and H1 < H2 is satisfied; and / or, a distance between an end of the second through hole away from the second exposed part and an end of the second conductive sheet close to the detonating device in the width direction is H3, a distance between an end of the second through hole away from the second reinforcing part and an end of the second conductive sheet close to the detonating device in the width direction is H4, and H3 < H4 is satisfied.

[0022] In some embodiments of the present application, both ends of the first conductive sheet and the second conductive sheet in the length direction are arranged outside the insulating base and are foldable.

[0023] In some embodiments of the present application, the conductive sheet assembly further comprises: a third conductive sheet, arranged between the first conductive sheet and the second conductive sheet in the width direction of the first conductive sheet, part of the third conductive sheet being embedded in the insulating base, the detonating device, the first conductive sheet and the second conductive sheet being arranged on the same side of the third conductive sheet in the thickness direction.

[0024] In some embodiments of the present application, the third conductive sheet is arranged between the first conductive sheet and the second conductive sheet in the width direction of the first conductive sheet, part of the third conductive sheet being embedded in the insulating base, the detonating device, the first conductive sheet and the second conductive sheet being arranged on the same side of the third conductive sheet in the thickness direction.

[0025] In some embodiments of the present application, the length of the insulating layer arranged on one side of the third conductive sheet in the thickness direction is greater than the length of the first weak part and / or the second weak part.

[0026] In some embodiments of the present application, the active circuit breaker further comprises: two safety devices arranged on the insulating base, the two safety devices being arranged on the sides of the first conductive sheet and the second conductive sheet away from each other, respectively.

[0027] The motor controller according to the embodiments of the present application comprises the active circuit breaker described above.

[0028] According to the motor controller of the embodiment of the present application, the active breaker is set, the detonating device and the conductive assembly are set on the insulating base, and the projection of the detonating device on the thickness direction of the conductive sheet is at least partially in the insulating base, so that the detonating device, the first conductive sheet and the second conductive sheet are jointly stressed, the stress limit is improved, and the occurrence of the first conductive sheet and the second conductive sheet being separated from the insulating base is further reduced.

[0029] According to the electric assembly of the embodiment of the present application, the motor controller is set.

[0030] According to the electric assembly of the embodiment of the present application, the motor controller is set, the detonating device and the conductive assembly are set on the insulating base, and the projection of the detonating device on the thickness direction of the conductive sheet is at least partially in the insulating base, so that the detonating device, the first conductive sheet and the second conductive sheet are jointly stressed, the stress limit is improved, and the occurrence of the first conductive sheet and the second conductive sheet being separated from the insulating base is further reduced.

[0031] According to the vehicle of the embodiment of the present application, the electric assembly is set.

[0032] According to the vehicle of the embodiment of the present application, the electric assembly is set, the motor controller is set, the detonating device and the conductive assembly are set on the insulating base, and the projection of the detonating device on the thickness direction of the conductive sheet is at least partially in the insulating base, so that the detonating device, the first conductive sheet and the second conductive sheet are jointly stressed, the stress limit is improved, and the occurrence of the first conductive sheet and the second conductive sheet being separated from the insulating base is further reduced.

[0033] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and / or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0034] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the accompanying drawings, wherein:

[0035] FIG. 1 is a partial exploded view of a motor controller according to an embodiment of the present application, wherein the active breaker is also an exploded view;

[0036] FIG. 2 is a partial exploded view of a motor controller according to an embodiment of the present application, wherein the active breaker is a perspective view;

[0037] FIG. 3 is an exploded view of an active breaker according to an embodiment of the present application;

[0038] FIG. 4 is a perspective view of an active breaker according to an embodiment of the present application;

[0039] Fig. 5 is a top view of the active circuit breaker according to an embodiment of the present application, in which a part of the structure and dimensions are shown;

[0040] Fig. 6 is a sectional view at A-A in Fig. 5;

[0041] Fig. 7 is a top view of the active circuit breaker according to an embodiment of the present application, in which another part of the structure and dimensions are shown;

[0042] Fig. 8 is a structural schematic view of a vehicle according to an embodiment of the present application.

[0043] Reference signs: 10000, vehicle; 1000, electric power assembly; 100, motor controller; 10, active circuit breaker; 1, conductive sheet assembly; 11, first conductive sheet; 111, first through hole; 112, first weak portion; 1121, first sub-weak portion; 1122, second sub-weak portion; 113, first reinforcing portion; 114, first exposed portion; 115, first fuse portion; 12, second conductive sheet; 121, second through hole; 122, second weak portion; 1221, third sub-weak portion; 1222, fourth sub-weak portion; 123, second reinforcing portion; 124, second exposed portion; 125, second fuse portion; 13, third conductive sheet; 2, detonating device; 21, conductive pin; 3, insulating base; 31, connecting column; 32, first insulating layer; 33, second insulating layer; 34, third insulating layer; 35, fourth insulating layer; 36, fifth insulating layer; 37, sixth insulating layer; 4, fuse device; 20, control board; 30, housing. DETAILED DESCRIPTION

[0044] Embodiments of the present application are described in detail below with reference to the attached drawings, which are shown by way of example, and wherein the same or similar components have the same or similar designations. The embodiments described below are exemplary only, and are not to be understood as limiting the present application.

[0045] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the features defined with "first", "second" can be explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0046] In the description of the present application, it needs to be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] The following describes the active circuit breaker 10 according to the embodiments of the present application with reference to FIGS. 1-8.

[0048] As shown in FIGS. 1-8, the active circuit breaker 10 according to the embodiments of the present application comprises: a conductive sheet assembly 1 and an initiating device 2.

[0049] Specifically, with reference to FIGS. 1-8, the conductive sheet assembly 1 comprises: a first conductive sheet 11 and a second conductive sheet 12, which are arranged in a width direction of the first conductive sheet 11. The initiating device 2 has a conductive pin 21, and the extension direction of the conductive pin 21 is perpendicular to the extension direction of the first conductive sheet 11. It needs to be noted that the conductive pin 21 is used to be electrically connected with a control panel 20, so as to realize that the control panel 20 controls the initiation of the initiating device 2 when the current is abnormal, thereby realizing the disconnection of the first conductive sheet 11 and the second conductive sheet 12, thereby cutting off the loop between the motor and the motor controller 100, thereby avoiding the damage of the motor and the motor controller 100 by the abnormal current. The control panel 20 is provided with a detection device such as a Hall chip or a Hall element, etc., and the size of the magnetic field is used to judge the size of the current passing through the conductive sheet assembly 1, so as to judge whether the current on the conductive sheet assembly 1 is abnormal.

[0050] It can be understood that the extension direction of the conductive pin 21 is parallel to the thickness direction of the first conductive sheet 11, that is, the extension direction of the conductive pin 21 is perpendicular to the extension direction of the first conductive sheet 11, so that the installation of the conductive pin 21 can utilize the space in the thickness direction of the first conductive sheet 11, so that the space in the width and length directions of the first conductive sheet 11 can be more abundant, facilitating the installation of other structures of the motor controller 100, and optimizing the internal space of the motor controller 100.

[0051] According to the active circuit breaker 10 of the embodiment of the present application, by arranging the conductive pin 21 on the detonating device 2, the extension direction of the conductive pin 21 is parallel to the thickness direction of the first conductive sheet 11, so that the installation of the conductive pin 21 can utilize the space in the thickness direction of the first conductive sheet 11, so that the space in the width and length directions of the first conductive sheet 11 can be more abundant, facilitating the installation of other structures of the motor controller 100, and optimizing the internal space of the motor controller 100.

[0052] In some embodiments of the present application, as shown in FIGS. 1-6, the active circuit breaker 10 further comprises an insulating base 3, and the conductive sheet assembly 1 and the detonating device 2 are arranged on the insulating base 3. It can be understood that by arranging the insulating base 3, the conductive sheet assembly 1 and the detonating device 2 can be first installed on the insulating base 3, and then the entire combined structure (the conductive sheet assembly 1, the detonating device 2 and the insulating base 3) is installed into the shell 30 of the motor controller 100. Thus, compared with installing the conductive sheet assembly 1 and the detonating device 2 into the shell 30 respectively (the installation operation in the shell 30 needs to be performed twice), the installation operation of the active circuit breaker 10 in the shell 30 (the space in the shell 30 is limited, and the installation operation in the shell 30 is difficult) can be reduced, so that the installation and disassembly maintenance are simple, and the installation and disassembly maintenance efficiency is improved.

[0053] In some embodiments of the present application, as shown in FIGS. 1-5, the detonating device 2 is arranged between the first conductive sheet 11 and the second conductive sheet 12, and the detonating device 2 has a first striker and a second striker, and the first striker and the second striker are respectively used to strike the first conductive sheet 11 and the second conductive sheet 12 along the width direction of the first conductive sheet 11.

[0054] It should be noted that at least part of the first striker is an insulating part, and the insulating part of the first striker is used to strike the first conductive sheet 11. At least part of the second striker is an insulating part, and the insulating part of the second striker is used to strike the second conductive sheet 12. The first striker and the second striker can be an insulating part as a whole, such as plastic, or the first striker and the second striker can be partially insulating, for example, the outer peripheral wall of the first striker and the second striker can be an insulating part, so as to avoid the formation of an electrical connection between the first striker and the first conductive sheet 11, and to avoid the formation of an electrical connection between the second striker and the second conductive sheet 12. When the first striker extends into the fracture of the first conductive sheet 11, it can be ensured that the first conductive sheet 11 is broken and the circuit is disconnected after the fracture, and when the second striker extends into the fracture of the second conductive sheet 12, it can be ensured that the second conductive sheet 12 is broken and the circuit is disconnected after the fracture, thereby further ensuring that the motor and the motor controller 100 cannot form a loop when the current is abnormal, thereby improving safety.

[0055] It can be understood that under normal circumstances, the first striker and the second striker are tightly contracted in the detonator 2, and when an abnormal current is detected, the detonator 2 is detonated, so that the first striker and the second striker are ejected. Through the impact of the first striker on the first conductive sheet 11 and the impact of the second striker on the second conductive sheet 12, the first conductive sheet 11 is broken and the second conductive sheet 12 is broken, thereby cutting off the loop between the motor and the motor controller 100, thereby improving safety.

[0056] In some embodiments of the present application, as shown in FIGS. 1-5, the first conductive sheet 11 is provided with a first through hole 111, and along the width direction of the first conductive sheet 11, the side of the first conductive sheet 11 facing the second conductive sheet 12 at the first through hole 111 is formed into a first weak part 112, and the side of the first conductive sheet 11 away from the second conductive sheet 12 at the first through hole 111 is formed into a first safety part 115, and the first striker is used to strike the first weak part 112.

[0057] It can be understood that the first through hole 111 is provided, so that the structure of the first conductive sheet 11 in the width direction at this position is weakened, so that the side of the first conductive sheet 11 facing the second conductive sheet 12 at the first through hole 111 is formed into a first weak part 112. Under normal circumstances, the first weak part 112 can carry current, realize the passage of current on the first conductive sheet 11, so that the loop between the motor and the motor controller 100 is in communication, thereby enabling the motor to work normally. When the current is abnormal, the first weak part 112 is broken by the first striker, at this time the current flows from the first safety part 115, the current density at the first safety part 115 increases, the first safety part 115 is fused, thereby realizing the disconnection of the first conductive sheet 11, thereby cutting off the loop between the motor and the motor controller 100, thereby improving safety.

[0058] In some embodiments of the present application, the first firing pin is opposite to the first weak part 112 of the first conductive sheet 11, so that the first firing pin is more likely to break the first weak part 112 of the first conductive sheet 11 when the current is abnormal, thereby further ensuring that the motor and the motor controller 100 cannot form a loop when the current is abnormal, thereby improving safety.

[0059] In some embodiments of the present application, as shown in FIGS. 1-5, the second conductive sheet 12 is provided with a second through hole 121, and along the width direction of the second conductive sheet 12, the side of the second conductive sheet 12 facing the first conductive sheet 11 at the second through hole 121 is formed into a second weak part 122, and the side of the second conductive sheet 12 away from the first conductive sheet 11 at the second through hole 121 is formed into a second fuse part 125, and the second firing pin is used to hit the second weak part 122.

[0060] It can be understood that the second through hole 121 is provided, so that the structure of the second conductive sheet 12 in the width direction at this position is weakened, so that the side of the second conductive sheet 12 facing the first conductive sheet 11 at the second through hole 121 is formed into a second weak part 122, and under normal circumstances, the second weak part 122 can carry current, realizing the current passing through the second conductive sheet 12, so that the loop between the motor and the motor controller 100 is communicated, thereby enabling the motor to work normally. When the current is abnormal, the second weak part 122 is broken by the second firing pin, at which time the current flows from the second fuse part 125, the current density at the second fuse part 125 increases, the second fuse part 125 is fused, thereby realizing the disconnection of the second conductive sheet 12, thereby cutting off the loop between the motor and the motor controller 100, thereby improving safety.

[0061] In some embodiments of the present application, the second firing pin is opposite to the second weak part 122 of the second conductive sheet 12, so that the second firing pin is more likely to break the second weak part 122 of the second conductive sheet 12 when the current is abnormal, thereby further ensuring that the motor and the motor controller 100 cannot form a loop when the current is abnormal, thereby improving safety.

[0062] In some embodiments of the present application, as shown in FIGS. 5 and 7, the first conductive sheet 11 is provided with a first through hole 111, and the first through hole 111 is a curve type protruding towards away from the detonating device 2; thereby making the distance between the two ends of the first through hole 111 and the end of the first conductive sheet 11 in the width direction facing the second conductive sheet 12 smaller, so that the first weak part 112 located at the two ends of the first through hole 111 is more likely to be broken, thereby further ensuring that the motor and the motor controller 100 cannot form a loop when the current is abnormal, thereby improving safety.

[0063] In some embodiments of the present application, as shown in FIG. 5 and FIG. 7, the second conductive sheet 12 is provided with a second through hole 121, and the second through hole 121 is a curve type protruding away from the detonating device 2. Thus, the distance between the two ends of the second through hole 121 and the end of the second conductive sheet 12 in the width direction towards the first conductive sheet 11 is small, so that the second weak part 122 at the two ends of the second through hole 121 is more easily broken, thereby further ensuring that the motor and the motor controller 100 cannot form a loop when the current is abnormal, thereby improving safety.

[0064] In some embodiments of the present application, as shown in FIG. 1-5, part of the first conductive sheet 11 and the second conductive sheet 12 is embedded in the insulating base 3, thereby making the first conductive sheet 11 and the second conductive sheet 12 more stable on the insulating base 3. It should be noted that when the impact force generated by the detonating device 2 is too large, the overall structure of the first conductive sheet 11 and the second conductive sheet 12 is easily directly knocked off or broken, thereby affecting other structures of the motor controller 100. In the present application, due to the protection of the insulating base 3, when the first conductive sheet 11 and the second conductive sheet 12 are impacted, the situation that the overall structure of the first conductive sheet 11 and the second conductive sheet 12 is knocked off or broken is reduced, thereby protecting other structures of the motor controller 100.

[0065] In some embodiments of the present application, as shown in FIG. 1-5, the length of the first conductive sheet 11 and the second conductive sheet 12 is between 170mm-190mm, such as 170mm, 180mm, 185mm or 190mm, etc. Thus, the first conductive sheet 11 and the second conductive sheet 12 have sufficient length, so that the length of the selected fuse device 4 can be longer, and the voltage range that can be protected is wider.

[0066] In some embodiments of the present application, as shown in FIG. 1-5, the length of the first conductive sheet 11 and the second conductive sheet 12 in the insulating base 3 is between 120mm-140mm, such as 120mm, 130mm, 135mm or 140mm, etc. Thus, the range of the insulating base 3 covering the first conductive sheet 11 and the second conductive sheet 12 is large enough, thereby further improving the protection of the first conductive sheet 11 and the second conductive sheet 12, so that when the first conductive sheet 11 and the second conductive sheet 12 are impacted, the situation that the overall structure of the first conductive sheet 11 and the second conductive sheet 12 is knocked off or broken is reduced.

[0067] In some embodiments of the present application, as shown in FIGS. 1-7, the ratio between the length a1 of the first conductive sheet 11 located in the insulating base 3 and the total length b1 of the first conductive sheet 11 is between 0.6-0.85, such as 0.6, 0.7, 0.8 or 0.85, etc., and the insulating base 3 does not cover the two ends of the length direction of the first conductive sheet 11. In this way, the range of the first conductive sheet 11 covered by the insulating base 3 is large enough, thereby further improving the protection of the first conductive sheet 11, so that when the first conductive sheet 11 is hit, the situation that the overall structure of the first conductive sheet 11 is hit and broken is further reduced.

[0068] Wherein, the insulating base 3 does not cover the two ends of the first conductive sheet 11, thereby facilitating the connection of the two ends of the first conductive sheet 11 with the power assembly and the motor respectively, and facilitating the heat dissipation of the first conductive sheet 11.

[0069] In some embodiments of the present application, as shown in FIGS. 1-7, the ratio between the length a2 of the second conductive sheet 12 located in the insulating base 3 and the total length b2 of the second conductive sheet 12 is between 0.6-0.85, such as 0.6, 0.7, 0.8 or 0.85, etc., and the insulating base 3 does not cover the two ends of the length direction of the second conductive sheet 12. In this way, the range of the second conductive sheet 12 covered by the insulating base 3 is large enough, thereby further improving the protection of the second conductive sheet 12, so that when the second conductive sheet 12 is hit, the situation that the overall structure of the second conductive sheet 12 is hit and broken is further reduced.

[0070] Wherein, the insulating base 3 does not cover the two ends of the second conductive sheet 12, thereby facilitating the connection of the two ends of the second conductive sheet 12 with the power assembly and the motor respectively, and facilitating the heat dissipation of the second conductive sheet 12.

[0071] In some embodiments of the present application, as shown in FIGS. 1-5, the thickness of the first conductive sheet 11 and the second conductive sheet 12 is between 2.6mm-3.2mm, such as 2.6mm, 3mm, 3.1mm or 3.2mm, etc. In this way, the first conductive sheet 11 and the second conductive sheet 12 have sufficient thickness, thereby ensuring the structural strength of the first conductive sheet 11 and the second conductive sheet 12, so that when the first conductive sheet 11 and the second conductive sheet 12 are hit, the situation that the overall structure of the first conductive sheet 11 and the second conductive sheet 12 is hit and broken is further reduced, thereby protecting other structures of the motor controller 100.

[0072] In some embodiments of the present application, as shown in FIGS. 1-6, the total thickness of the insulating base 3 and the first conductive sheet 11 on both sides of the thickness direction of the first conductive sheet 11 is 8-15 mm, for example, 10 mm, 11 mm, 13 mm, or 15 mm, etc. Thus, the thickness of the insulating base 3 is appropriate, thereby ensuring the structural strength of the insulating base 3, thereby ensuring the stability of the installation and fixation of the first conductive sheet 11.

[0073] In some embodiments of the present application, as shown in FIGS. 1-6, the total thickness of the insulating base 3 and the first conductive sheet 11 on both sides of the thickness direction of the second conductive sheet 12 is 8-15 mm, for example, 10 mm, 11 mm, 13 mm, or 15 mm, etc. Thus, the thickness of the insulating base 3 is appropriate, thereby ensuring the structural strength of the insulating base 3, thereby ensuring the stability of the installation and fixation of the second conductive sheet 12.

[0074] In some embodiments of the present application, as shown in FIGS. 3 and 4, the insulating base 3 comprises a first insulating layer 32 and a second insulating layer 33, and the first insulating layer 32 and the second insulating layer 33 are respectively arranged on both sides of the thickness direction of the first conductive sheet 11. Thus, both sides of the thickness direction of the first conductive sheet 11 can be covered by the insulating base 3, so that when the first conductive sheet 11 is impacted, the situation that the first conductive sheet 11 is separated from the insulating base 3 due to excessive impact force is reduced, thereby reducing the situation that the first conductive sheet 11 is completely separated from the motor controller 100 or the motor.

[0075] In some embodiments of the present application, as shown in FIGS. 3 and 4, the thickness of at least one of the first insulating layer 32 and the second insulating layer 33 is greater than the thickness of the first conductive sheet 11, for example, the thickness of the first insulating layer 32 is greater than the thickness of the first conductive sheet 11, or the thickness of the second insulating layer 33 is greater than the thickness of the first conductive sheet 11, or the thickness of the first insulating layer 32 and the second insulating layer 33 are both greater than the thickness of the first conductive sheet 11. Thus, at least one of the first insulating layer 32 and the second insulating layer 33 has sufficient thickness, thereby improving the reliability of the first conductive sheet 11 being covered by the insulating base 3, so that when the first conductive sheet 11 is impacted, the situation that the first conductive sheet 11 is separated from the insulating base 3 due to excessive impact force is further reduced, thereby reducing the situation that the first conductive sheet 11 is completely separated from the motor controller 100 or the motor.

[0076] In some embodiments of the present application, as shown in FIG. 3 and FIG. 4, the sum of the thicknesses of the first insulating layer 32 and the second insulating layer 33 is greater than twice the thickness of the first conductive sheet 11. In this way, the thickness of the insulating base 3 is further made appropriate, thereby ensuring the structural strength of the insulating base 3, thereby improving the reliability of the first conductive sheet 11 being covered by the insulating base 3, so that when the first conductive sheet 11 is impacted, the situation that the first conductive sheet 11 is separated from the insulating base 3 due to excessive impact force is further reduced, thereby reducing the situation that the first conductive sheet 11 is entirely separated from the motor controller 100 or the motor.

[0077] In some embodiments of the present application, as shown in FIG. 3 and FIG. 4, the insulating base 3 includes a third insulating layer 34 and a fourth insulating layer 35, and the third insulating layer 34 and the fourth insulating layer 35 are respectively arranged on both sides of the thickness direction of the second conductive sheet 12. In this way, both sides of the thickness direction of the second conductive sheet 12 can be covered by the insulating base 3, so that when the second conductive sheet 12 is impacted, the situation that the second conductive sheet 12 is separated from the insulating base 3 due to excessive impact force is reduced, thereby reducing the situation that the second conductive sheet 12 is entirely separated from the motor controller 100 or the motor.

[0078] In some embodiments of the present application, as shown in FIG. 3 and FIG. 4, the thickness of at least one of the third insulating layer 34 and the fourth insulating layer 35 is greater than the thickness of the second conductive sheet 12. For example, the thickness of the third insulating layer 34 is greater than the thickness of the second conductive sheet 12, or the thickness of the fourth insulating layer 35 is greater than the thickness of the second conductive sheet 12, or the thicknesses of the third insulating layer 34 and the fourth insulating layer 35 are both greater than the thickness of the second conductive sheet 12. In this way, at least one of the third insulating layer 34 and the fourth insulating layer 35 has sufficient thickness, thereby improving the reliability of the second conductive sheet 12 being covered by the insulating base 3, so that when the second conductive sheet 12 is impacted, the situation that the second conductive sheet 12 is separated from the insulating base 3 due to excessive impact force is further reduced, thereby reducing the situation that the second conductive sheet 12 is entirely separated from the motor controller 100 or the motor.

[0079] In some embodiments of the present application, as shown in FIG. 3 and FIG. 4, the sum of the thicknesses of the third insulating layer 34 and the fourth insulating layer 35 is greater than twice the thickness of the second conductive sheet 12. In this way, the thickness of the insulating base 3 is further made appropriate, thereby ensuring the structural strength of the insulating base 3, thereby improving the reliability of the second conductive sheet 12 being covered by the insulating base 3, so that when the second conductive sheet 12 is impacted, the situation that the second conductive sheet 12 is separated from the insulating base 3 due to excessive impact force is further reduced, thereby reducing the situation that the second conductive sheet 12 is entirely separated from the motor controller 100 or the motor.

[0080] In some embodiments of the present application, as shown in FIG. 5, the first conductive sheet 11 is provided with a first through hole 111, along the width direction of the first conductive sheet 11, the first conductive sheet 11 is formed into a first weak part 112 on the side of the first through hole 111 facing the second conductive sheet 12, and the first conductive sheet 11 is formed into a first safety part 115 on the side of the first through hole 111 away from the second conductive sheet 12, and the first striker is used to hit the first weak part 112. Along the length direction of the first conductive sheet 11, the part of the first weak part 112 close to one end of the length direction of the first conductive sheet 11 is embedded in the insulating base 3 and forms a first reinforcing part 113, and the part close to the other end of the length direction of the first conductive sheet 11 is exposed outside the insulating base 3 to form a first exposed part 114.

[0081] Among them, the first reinforcing part 113 improves the structural strength of the first weak part 112, so that when the first conductive sheet 11 is hit, the situation that the overall structure of the first conductive sheet 11 is hit away or broken is reduced, thereby protecting other structures of the motor controller 100. And the first exposed part 114 can increase the heat dissipation effect of the first conductive sheet 11 during current carrying, and reduce the situation that the first conductive sheet 11 is hot melting.

[0082] In some embodiments of the present application, as shown in FIG. 5, the first conductive sheet 11 located at the side away from the first reinforcing part 113 of the first exposed part 114 is embedded in the insulating base 3, and the insulating base 3 does not cover both ends of the length direction of the first conductive sheet 11, thereby further improving the protection of the first conductive sheet 11, so that when the first conductive sheet 11 is hit, the situation that the overall structure of the first conductive sheet 11 is hit away or broken is reduced.

[0083] In some embodiments of the present application, as shown in FIG. 5 and FIG. 7, the first conductive sheet 11 forms a first sub-weak part 1121 between the end of the first through hole 111 away from the first exposed part 114 and the side of the first conductive sheet 11 width direction facing the second conductive sheet 12, the first striker is opposite to the first sub-weak part 1121, and the first conductive sheet 11 forms a second sub-weak part 1122 between the end of the first through hole 111 away from the first reinforcing part 113 and the side of the first conductive sheet 11 width direction facing the second conductive sheet 12. Since the first striker is opposite to the first sub-weak part 1121, the first striker can hit the first sub-weak part 1121, so that the first sub-weak part 1121 is broken, so that the first weak part 112 is disconnected, and the second sub-weak part 1122 will be turned over under the impact force, but will not be broken, thereby avoiding the first weak part 112 from falling.

[0084] In some embodiments of the present application, as shown in FIG. 5, the second conductive sheet 12 is provided with a second through hole 121, along the width direction of the second conductive sheet 12, the second conductive sheet 12 on the side of the second through hole 121 facing the first conductive sheet 11 forms a second weak part 122, and the second conductive sheet 12 on the side of the second through hole 121 away from the first conductive sheet 11 forms a second safety part 125, and the second striker is used to hit the second weak part 122. Along the length direction of the second conductive sheet 12, the part of the second weak part 122 close to one end of the second conductive sheet 12 in the length direction is embedded in the insulating base 3 and forms a second reinforcing part 123, and the part of the second weak part 122 close to the other end of the second conductive sheet 12 in the length direction is exposed outside the insulating base 3 and forms a second exposed part 124.

[0085] Among them, the second reinforcing part 123 improves the structural strength of the second weak part 122, so that when the second conductive sheet 12 is hit, the situation that the overall structure of the second conductive sheet 12 is hit away or broken is reduced, thereby protecting other structures of the motor controller 100. And the second exposed part 124 can increase the heat dissipation effect of the second conductive sheet 12 during current carrying, and reduce the situation that the second conductive sheet 12 is hot melting.

[0086] In some embodiments of the present application, as shown in FIG. 5, the second conductive sheet 12 located at the side of the second exposed part 124 away from the second reinforcing part 123 is embedded in the insulating base 3, and the insulating base 3 does not cover both ends of the second conductive sheet 12 in the length direction, thereby further improving the protection of the second conductive sheet 12, so that when the second conductive sheet 12 is hit, the situation that the second conductive sheet 12 is separated from the insulating base 3 is reduced.

[0087] In some embodiments of the present application, as shown in FIG. 5 and FIG. 7, the second conductive sheet 12 between one end of the second through hole 121 away from the second exposed part 124 and the side of the second conductive sheet 12 in the width direction facing the first conductive sheet 11 forms a third sub-weak part 1221, and the second striker is opposite to the third sub-weak part 1221. The second conductive sheet 12 between the other end of the second through hole 121 away from the second reinforcing part 123 and the side of the second conductive sheet 12 in the width direction facing the first conductive sheet 11 forms a fourth sub-weak part 1222. Since the second striker is opposite to the third sub-weak part 1221, the second striker can hit the third sub-weak part 1221, so that the third sub-weak part 1221 is broken, so that the second weak part 122 is disconnected, and the fourth sub-weak part 1222 will be turned over under the impact force, but will not be broken, thereby avoiding the second weak part 122 from falling.

[0088] In some embodiments of the present application, as shown in FIG. 5, the first conductive sheet 11 is provided with a first through hole 111, the first conductive sheet 11 is formed into a first weak part 112 at the first through hole 111, along the length direction of the first conductive sheet 11, the part of the first weak part 112 close to one end of the length direction of the first conductive sheet 11 is embedded in the insulating base 3 and forms a first reinforcing part 113, and the part close to the other end of the length direction of the first conductive sheet 11 is exposed outside the insulating base 3 to form a first exposed part 114.

[0089] In some embodiments of the present application, as shown in FIG. 5, the distance between the end of the first through hole 111 away from the first exposed part 114 and the end of the first conductive sheet 11 close to the detonating device 2 in the width direction is H1, the distance between the end of the first through hole 111 away from the first reinforcing part 113 and the end of the first conductive sheet 11 close to the detonating device 2 in the width direction is H2, and H1 < H2 is satisfied.

[0090] In some embodiments of the present application, as shown in FIG. 5, the distance between the end of the first through hole 111 away from the first exposed part 114 and the end of the first conductive sheet 11 close to the detonating device 2 in the width direction is H1, the distance between the end of the first through hole 111 away from the first reinforcing part 113 and the end of the first conductive sheet 11 close to the detonating device 2 in the width direction is H2, and H1 < H2 is satisfied.

[0091] In some embodiments of the present application, as shown in FIG. 5, the second conductive sheet 12 is provided with a second through hole 121, the second conductive sheet 12 is formed into a second weak part 122 at the second through hole 121, along the length direction of the second conductive sheet 12, the part of the second weak part 122 close to one end of the length direction of the second conductive sheet 12 is embedded in the insulating base 3 and forms a second reinforcing part 123, and the part close to the other end of the length direction of the second conductive sheet 12 is exposed outside the insulating base 3 to form a second exposed part 124.

[0092] In some embodiments of the present application, as shown in FIG. 5, the distance between the end of the second through hole 121 away from the second exposed part 124 and the end of the second conductive sheet 12 close to the detonating device 2 in the width direction is H3, the distance between the end of the second through hole 121 away from the second reinforcing part 123 and the end of the second conductive sheet 12 close to the detonating device 2 in the width direction is H4, and H3 < H4 is satisfied.

[0093] In some embodiments of the present application, as shown in FIG. 5, the distance between the end of the second through hole 121 away from the second exposed part 124 and the end of the second conductive sheet 12 close to the detonating device 2 in the width direction is H3, the distance between the end of the second through hole 121 away from the second reinforcing part 123 and the end of the second conductive sheet 12 close to the detonating device 2 in the width direction is H4, and H3 < H4 is satisfied.

[0094] In some embodiments of the present application, the two ends of the first conductive sheet 11 and the second conductive sheet 12 in the length direction are arranged outside the insulating base 3 and can be bent. Thus, by bending the two ends of the first conductive sheet 11 and the second conductive sheet 12 in the length direction, different installation methods of the motor controller 100 can be adapted, and the applicability is improved.

[0095] In some embodiments of the present application, as shown in FIGS. 1-5, the conductive sheet assembly 1 further comprises: a third conductive sheet 13, the third conductive sheet 13 is arranged between the first conductive sheet 11 and the second conductive sheet 12 along the width direction of the first conductive sheet 11, part of the third conductive sheet 13 is embedded in the insulating base 3, and the detonating device 2, the first conductive sheet 11 and the second conductive sheet 12 are arranged on the same side of the third conductive sheet 13 in the thickness direction. And part of the third conductive sheet 13 is embedded in the insulating base 3, so that the integrity of the first conductive sheet 11, the second conductive sheet 12 and the third conductive sheet 13 is better, so that when the first conductive sheet 11 and the second conductive sheet 12 are impacted, the first conductive sheet 11, the second conductive sheet 12, the third conductive sheet 13 and the insulating base 3 can bear force together, the force limit is improved, and the occurrence of the first conductive sheet 11 and the second conductive sheet 12 being separated from the insulating base 3 is further reduced.

[0096] It should be noted that by arranging the first conductive sheet 11, the second conductive sheet 12 and the third conductive sheet 13, the output of three-phase current can be realized, so that the work of a three-phase motor can be realized. When at least two of the first conductive sheet 11, the second conductive sheet 12 and the third conductive sheet 13 are broken, the loop between the motor and the motor controller 100 will be disconnected. Since the first conductive sheet 11 and the second conductive sheet 12 are configured to break when the current is abnormal, the third conductive sheet 13 does not need to be configured to break when the current is abnormal, thereby simplifying the structure of the third conductive sheet 13.

[0097] It can be understood that by arranging the detonating device 2, the first conductive sheet 11 and the second conductive sheet 12 on the same side of the third conductive sheet 13 in the thickness direction, the detonating device 2 can share part of the space in the thickness direction of the conductive sheet assembly 1 with the first conductive sheet 11 and the second conductive sheet 12, so that the structure of the active circuit breaker 10 in the thickness direction is more compact, and the volume of the active circuit breaker 10 is smaller.

[0098] In some embodiments of the present application, as shown in FIG. 3, FIG. 4 and FIG. 7, the insulating base 3 comprises a fifth insulating layer 36 and a sixth insulating layer 37, the fifth insulating layer 36 and the sixth insulating layer 37 are respectively arranged on both sides of the third conductive sheet 13 in the thickness direction, and the length of at least one of the fifth insulating layer 36 and the sixth insulating layer 37 is greater than the length L of the first weak part 112 and the second weak part 122, for example, the length of the fifth insulating layer 36 is greater than the length of the first weak part 112 and the second weak part 122, or the length of the sixth insulating layer 37 is greater than the length of the first weak part 112 and the second weak part 122, or the length of the fifth insulating layer 36 and the sixth insulating layer 37 are both greater than the length of the first weak part 112 and the second weak part 122.

[0099] It can be understood that, since the first weak part 112 and the second weak part 122 are weak in structural strength in the width direction of the first conductive sheet 11, and the length of at least one of the fifth insulating layer 36 and the sixth insulating layer 37 is greater than the length of the first weak part 112 and the second weak part 122, so that the fifth insulating layer 36 and / or the sixth insulating layer 37 can cover the first weak part 112 and the second weak part 122 in the length direction of the third conductive sheet 13, thereby improving the force limit of the first conductive sheet 11, the second conductive sheet 12, the third conductive sheet 13 and the insulating base 3 as a whole in the width direction of the first conductive sheet 11, and further reducing the separation of the first conductive sheet 11 and the second conductive sheet 12 from the insulating base 3 due to impact.

[0100] In addition, the length of the fifth insulating layer 36 is greater than the length L of the first weak part 112 and the second weak part 122, so that the fifth insulating layer 36 has sufficient length, so that the first conductive sheet 11, the second conductive sheet 12 and the third conductive sheet 13 have better integrity, so that when the first conductive sheet 11 and the second conductive sheet 12 are impacted, the first conductive sheet 11, the second conductive sheet 12, the third conductive sheet 13 and the insulating base 3 can bear force together, thereby improving the force limit and further reducing the separation of the first conductive sheet 11 and the second conductive sheet 12 from the insulating base 3.

[0101] In some embodiments of the present application, as shown in FIG. 3 and FIG. 4, the length of the first insulating layer 32 is greater than the length of the fifth insulating layer 36. Thus, the first insulating layer 32 has sufficient coverage range for the first conductive sheet 11, thereby improving the reliability of the first conductive sheet 11 being covered by the insulating base 3, so that when the first conductive sheet 11 is impacted, the separation of the first conductive sheet 11 from the insulating base 3 due to excessive impact force is further reduced, thereby reducing the separation of the first conductive sheet 11 from the motor controller 100 or the motor. At the same time, the third conductive sheet 13 can have sufficient heat dissipation area to avoid being fused, so that the motor can work normally.

[0102] In some embodiments of the present application, as shown in FIG. 3 and FIG. 4, the length of the second insulating layer 33 is greater than the length of the sixth insulating layer 37. In this way, the second insulating layer 33 is sufficient to cover the first conductive sheet 11, thereby improving the reliability of the first conductive sheet 11 being covered by the insulating base 3, so that when the first conductive sheet 11 is impacted, the first conductive sheet 11 is further reduced from the insulating base 3 due to excessive impact force, thereby reducing the overall disconnection of the first conductive sheet 11 from the motor controller 100 or the motor. At the same time, it also makes the third conductive sheet 13 have sufficient heat dissipation area to avoid the third conductive sheet 13 being fused, so that the motor works normally.

[0103] In some embodiments of the present application, as shown in FIG. 3 and FIG. 4, the length of the third insulating layer 34 is greater than the length of the fifth insulating layer 36. In this way, the third insulating layer 34 is sufficient to cover the second conductive sheet 12, thereby improving the reliability of the second conductive sheet 12 being covered by the insulating base 3, so that when the second conductive sheet 12 is impacted, the second conductive sheet 12 is further reduced from the insulating base 3 due to excessive impact force, thereby reducing the overall disconnection of the second conductive sheet 12 from the motor controller 100 or the motor. At the same time, it also makes the third conductive sheet 13 have sufficient heat dissipation area to avoid the third conductive sheet 13 being fused, so that the motor works normally.

[0104] In some embodiments of the present application, as shown in FIG. 3 and FIG. 4, the length of the fourth insulating layer 35 is greater than the length of the sixth insulating layer 37. In this way, the fourth insulating layer 35 is sufficient to cover the second conductive sheet 12, thereby improving the reliability of the second conductive sheet 12 being covered by the insulating base 3, so that when the second conductive sheet 12 is impacted, the second conductive sheet 12 is further reduced from the insulating base 3 due to excessive impact force, thereby reducing the overall disconnection of the second conductive sheet 12 from the motor controller 100 or the motor. At the same time, it also makes the third conductive sheet 13 have sufficient heat dissipation area to avoid the third conductive sheet 13 being fused, so that the motor works normally.

[0105] In some embodiments of the present application, as shown in FIG. 3 and FIG. 4, the length of the first insulating layer 32 is equal to the length of the second insulating layer 33, thereby making the thickness direction of the first conductive sheet 11 on both sides of the covered area consistent, thereby simplifying the injection molding process of the first conductive sheet 11 on the insulating base 3, and improving the production efficiency.

[0106] In some embodiments of the present application, as shown in FIG. 3 and FIG. 4, the length of the third insulating layer 34 is equal to the length of the fourth insulating layer 35, thereby making the thickness direction of the second conductive sheet 12 on both sides of the covered area consistent, thereby simplifying the injection molding process of the second conductive sheet 12 on the insulating base 3, and improving the production efficiency.

[0107] In some embodiments of the application, as shown in FIG. 3 and FIG. 4, the length of the fifth insulating layer 36 is equal to the length of the sixth insulating layer 37. In this way, the areas on both sides of the third conductive sheet 13 are covered uniformly, thereby simplifying the injection molding process of the third conductive sheet 13 on the insulating base 3 and improving the production efficiency.

[0108] In some embodiments of the application, as shown in FIG. 3 and FIG. 4, the ratio of the length of the fifth insulating layer 36 to the length of the first insulating layer 32 is between about 0.5-1.2, such as 0.5, 0.7, 0.8 or 1.2, etc. In this way, the length of the fifth insulating layer 36 is appropriate, which not only ensures the bonding force of the third conductive sheet 13 and the insulating base 3, thereby ensuring the integrity between the first conductive sheet 11, the second conductive sheet 12 and the third conductive sheet 13, so that when the first conductive sheet 11 and the second conductive sheet 12 are impacted, the first conductive sheet 11, the second conductive sheet 12, the third conductive sheet 13 and the insulating base 3 can bear force together, thereby improving the force limit and further reducing the occurrence of the first conductive sheet 11 and the second conductive sheet 12 being separated from the insulating base 3.

[0109] At the same time, it can also avoid the fifth insulating layer 36 being too long, thereby ensuring the heat dissipation effect of the third conductive sheet 13, so that the third conductive sheet 13 can have sufficient heat dissipation area, avoid the third conductive sheet 13 being fused, and make the motor work normally.

[0110] In some embodiments of the application, as shown in FIG. 3 and FIG. 4, the ratio of the length of the fifth insulating layer 36 to the length of the third insulating layer 34 is between about 0.5-1.2, such as 0.5, 0.7, 0.8 or 1.2, etc. In this way, the length of the fifth insulating layer 36 is appropriate, which not only ensures the bonding force of the third conductive sheet 13 and the insulating base 3, thereby ensuring the integrity between the first conductive sheet 11, the second conductive sheet 12 and the third conductive sheet 13, so that when the first conductive sheet 11 and the second conductive sheet 12 are impacted, the first conductive sheet 11, the second conductive sheet 12, the third conductive sheet 13 and the insulating base 3 can bear force together, thereby improving the force limit and further reducing the occurrence of the first conductive sheet 11 and the second conductive sheet 12 being separated from the insulating base 3.

[0111] At the same time, it can also avoid the fifth insulating layer 36 being too long, thereby ensuring the heat dissipation effect of the third conductive sheet 13, so that the third conductive sheet 13 can have sufficient heat dissipation area, avoid the third conductive sheet 13 being fused, and make the motor work normally.

[0112] In some embodiments of the present application, as shown in FIGS. 1-5, the length of the third conductive sheet 13 is 170-190 mm, for example, 170 mm, 180 mm, 185 mm, or 190 mm, etc., so that the third conductive sheet 13 has sufficient length, so that the length of the selected fuse device 4 can be longer, so that the voltage range that can be protected is wider.

[0113] In some embodiments of the present application, as shown in FIGS. 1-5, the length of the third conductive sheet 13 inside the insulating base 3 is 120-140 mm, for example, 120 mm, 130 mm, 135 mm, or 140 mm, etc. Thus, the range of the insulating base 3 covering the third conductive sheet 13 is large enough, thereby further improving the integrity of the first conductive sheet 11, the second conductive sheet 12, and the third conductive sheet 13, so that when the first conductive sheet 11 and the second conductive sheet 12 are impacted, the first conductive sheet 11, the second conductive sheet 12, the third conductive sheet 13, and the insulating base 3 can better bear stress together, improve the stress limit, and further reduce the occurrence of the first conductive sheet 11 and the second conductive sheet 12 being hit away or broken.

[0114] In some embodiments of the present application, as shown in FIGS. 1-7, the ratio between the length a3 of the third conductive sheet 13 inside the insulating base 3 and the length b3 of the third conductive sheet 13 is between 0.6-0.85, for example, 0.6, 0.7, 0.8, or 0.85, etc., and the insulating base 3 does not cover both ends of the length direction of the third conductive sheet 13. Thus, the range of the insulating base 3 covering the third conductive sheet 13 is large enough, thereby further improving the integrity of the first conductive sheet 11, the second conductive sheet 12, and the third conductive sheet 13, so that when the first conductive sheet 11 and the second conductive sheet 12 are impacted, the first conductive sheet 11, the second conductive sheet 12, the third conductive sheet 13, and the insulating base 3 can better bear stress together, improve the stress limit, and further reduce the occurrence of the first conductive sheet 11 and the second conductive sheet 12 being hit away or broken.

[0115] wherein the insulating base 3 does not cover both ends of the third conductive sheet 13, thereby facilitating the connection of both ends of the third conductive sheet 13 with the power assembly and the motor, respectively, while facilitating the heat dissipation of the third conductive sheet 13.

[0116] In some embodiments of the present application, as shown in FIGS. 1-6, the total thickness of the insulating base 3 and the first conductive sheet 11 covering both sides of the thickness direction of the second conductive sheet 12 is 8-15 mm, for example, 10 mm, 11 mm, 13 mm, or 15 mm, etc. Thus, the thickness of the insulating base 3 is appropriate, thereby ensuring the structural strength of the insulating base 3, thereby ensuring the stability of the installation and fixation of the third conductive sheet 13.

[0117] In some embodiments of the present application, as shown in FIGS. 1-5, the thickness of the third conductive sheet 13 is 2.8-3.2 mm, for example, 2.8 mm, 3 mm, 3.1 mm or 3.2 mm, etc., thereby making the third conductive sheet 13 have sufficient thickness to ensure the structural strength of the third conductive sheet 13, so that when the first and second conductive sheets 11 and 12 are hit, the force limit of the first and second conductive sheets 11 and 12 and the third conductive sheet 13 and the insulating base 3 as a whole is improved, further reducing the situation that the entire structure of the first and second conductive sheets 11 and 12 is hit away or broken, thereby protecting other structures of the motor controller 100.

[0118] In some embodiments of the present application, as shown in FIGS. 1, 2 and 4, the active circuit breaker 10 further comprises two fuses 4 disposed on the insulating base 3, and the two fuses 4 are disposed on the side of the first and second conductive sheets 11 and 12 away from each other. It should be noted that the two fuses 4 are connected in parallel with the first and second conductive sheets 11 and 12, respectively. After the first and second conductive sheets 11 and 12 are broken, the resistance increases sharply, the current at the broken part decreases rapidly, and the parallel fuses 4 flow a large amount of current. The fuses 4 are melted under the action of the large current. Since the melting time is greater than the time for the first and second conductive sheets 11 and 12 to break and move to a reliable insulation distance, the fuses 4 avoid producing an arc due to the disconnection of the first and second conductive sheets 11 and 12, thereby playing an arc extinguishing effect and improving the reliability of the active circuit breaker 10.

[0119] In some embodiments of the present application, as shown in FIGS. 1, 2 and 4, the two fuses 4 are disposed on the side of the first and second conductive sheets 11 and 12 away from each other, so that the two fuses 4 can be disposed away from the detonating device 2, thereby reducing the situation that the detonating device 2 breaks the fuses 4 and reducing the situation that the fuses 4 fail, thereby improving the arc extinguishing reliability of the fuses 4.

[0120] In addition, the fuses 4 are connected with the insulating base 3 by fasteners such as screws, thereby improving the installation stability of the fuses 4.

[0121] The motor controller 100 according to the embodiments of the present application is described below with reference to FIGS. 1-3.

[0122] As shown in FIGS. 1-3, the motor controller 100 according to the embodiments of the present application comprises the active circuit breaker 10 and the control board 20 described above.

[0123] Specifically, referring to FIG. 1-3, the conductive pin 21 is connected with and perpendicular to the control board 20, and the control board 20 is perpendicular to the thickness direction of the first conductive sheet 11. It can be understood that the conductive pin 21 is used to be electrically connected with the control board 20, so as to realize that when the current is abnormal, the control board 20 controls the detonation of the detonation device 2, so as to realize that the first conductive sheet 11 and the second conductive sheet 12 are disconnected, so as to cut off the loop between the motor and the motor controller 100, thereby avoiding that the motor and the motor controller 100 are damaged by the abnormal current. The control board 20 is provided with a detection device such as a Hall chip or a Hall element, and the size of the magnetic field is used to judge the size of the current passing through the conductive sheet assembly 1, so as to judge whether the current on the conductive sheet assembly 1 is abnormal.

[0124] The conductive pin 21 is connected with and perpendicular to the control board 20, so as to further make the installation of the conductive pin 21 use the space in the thickness direction of the first conductive sheet 11, so as to make the space in the width and length directions of the first conductive sheet 11 more abundant, facilitate the installation of other structures of the motor controller 100, and optimize the internal space of the motor controller 100.

[0125] According to the motor controller 100 of the embodiment of the present application, by arranging the above-mentioned active circuit breaker 10, arranging the conductive pin 21 on the detonation device 2, and making the extension direction of the conductive pin 21 parallel to the thickness direction of the first conductive sheet 11, the installation of the conductive pin 21 can use the space in the thickness direction of the first conductive sheet 11, so as to make the space in the width and length directions of the first conductive sheet 11 more abundant, facilitate the installation of other structures of the motor controller 100, and optimize the internal space of the motor controller 100.

[0126] In some embodiments of the present application, the control board 20 is directly connected with the conductive pin 21. It can be understood that the conductive pin 21 has a pin, and the control board 20 is welded with the pin of the conductive pin 21, thereby reducing the connecting piece between the control board 20 and the conductive pin 21, and making the structure simpler.

[0127] In some embodiments of the present application, the conductive pin 21 has a plug-in piece, and the control board 20 has a plug-in slot matched with the plug-in piece. Thus, through the mutual cooperation of the plug-in piece and the plug-in slot, the connection between the conductive pin 21 and the control board 20 is more reliable, and meanwhile the connection convenience between the conductive pin 21 and the control board 20 is improved, thereby facilitating the installation and disassembly and maintenance between the conductive pin 21 and the control board 20.

[0128] In some embodiments of the present application, as shown in FIGS. 1-4, the insulating base 3 is provided with a connecting column 31, and the connecting column 31 is connected with the control panel 20. It can be understood that, by providing the connecting column 31, the reliability and stability of the installation of the control panel 20 on the insulating base 3 are improved. At the same time, the provision of the connecting column 31 can raise the installation surface of the control panel 20, thereby avoiding interference with the detonating device 2.

[0129] In some embodiments of the present application, as shown in FIGS. 1-4, the conductive sheet assembly 1 includes a third conductive sheet 13, and the connecting column 31, the detonating device 2, the first conductive sheet 11 and the second conductive sheet 12 are all arranged on the same side in the thickness direction of the third conductive sheet 13, so that the connecting column 31 can share a part of the space in the thickness direction of the conductive sheet assembly 1 with the first conductive sheet 11 and the second conductive sheet 12, thereby making the structure of the active circuit breaker 10 in the thickness direction more compact, and thereby making the volume of the active circuit breaker 10 smaller.

[0130] In some embodiments of the present application, as shown in FIGS. 1-4, the connecting columns 31 are spaced apart, thereby further improving the reliability and stability of the installation of the control panel 20 on the insulating base 3. For example, in the example shown in FIGS. 1-4, the connecting columns 31 are two, but the present application is not limited thereto, and the connecting columns 31 can also be more, for example, 3, 4, 5 or 6, etc.

[0131] In some embodiments of the present application, the motor controller 100 further includes a power assembly, and the conductive sheet assembly 1 further includes a third conductive sheet 13, and the first conductive sheet 11, the second conductive sheet 12 and the third conductive sheet 13 are configured as a three-phase conductive member, one end of the first conductive sheet 11, the second conductive sheet 12 and the third conductive sheet 13 is connected with the power assembly, and the other end is used for connecting the motor.

[0132] It can be understood that the conductive sheet assembly 1 is formed as a three-phase conductive member of the motor, that is, the active circuit breaker 10 shares the conductive sheet assembly 1 with the motor, thereby eliminating the need to provide an additional adapter on the active circuit breaker 10 to connect the conductive sheet assembly 1 (three-phase conductive member) of the motor, thereby simplifying the structure.

[0133] The electric drive assembly 1000 according to the embodiments of the present application is described below.

[0134] The electric drive assembly 1000 according to the embodiments of the present application includes the motor controller 100 described above.

[0135] According to the electric assembly 1000 provided by the embodiment of the present application, by arranging the motor controller 100, arranging the active circuit breaker 10, arranging the conductive pin 21 on the detonating device 2, and arranging the extension direction of the conductive pin 21 to be parallel to the thickness direction of the first conductive sheet 11, the installation of the conductive pin 21 can utilize the space in the thickness direction of the first conductive sheet 11, so that the space in the width and length directions of the first conductive sheet 11 can be more abundant, and the installation of other structures of the motor controller 100 is facilitated, and the internal space of the motor controller 100 is optimized.

[0136] A vehicle 10000 according to an embodiment of the present application is described below.

[0137] The vehicle 10000 according to the embodiment of the present application includes the electric assembly 1000 described above.

[0138] According to the electric assembly 1000 provided by the embodiment of the present application, by arranging the motor controller 100, arranging the active circuit breaker 10, arranging the conductive pin 21 on the detonating device 2, and arranging the extension direction of the conductive pin 21 to be parallel to the thickness direction of the first conductive sheet 11, the installation of the conductive pin 21 can utilize the space in the thickness direction of the first conductive sheet 11, so that the space in the width and length directions of the first conductive sheet 11 can be more abundant, and the installation of other structures of the motor controller 100 is facilitated, and the internal space of the motor controller 100 is optimized.

[0139] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0140] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An active circuit breaker, wherein, The application relates to a conductive sheet assembly (1) comprising a first conductive sheet (11) and a second conductive sheet (12) arranged in a width direction of the first conductive sheet (11); an igniting device (2) for impacting the first conductive sheet (11) and the second conductive sheet (12) to break the first conductive sheet (11) and the second conductive sheet (12) respectively; and an insulating base (3) for accommodating the conductive sheet assembly (1) and the igniting device (2), wherein a projection of the igniting device (2) in a thickness direction of the first conductive sheet (11) and / or the second conductive sheet (12) is at least partially located in the insulating base (3). The projection of the igniting device (2) in the thickness direction of the first conductive sheet (11) and / or the second conductive sheet (12) is completely located in the insulating base (3). The first conductive sheet (11) and the second conductive sheet (12) are at least partially embedded in the insulating base (3), and a ratio between a length of the first conductive sheet (11) embedded in the insulating base (3) and a total length of the first conductive sheet (11) is between 0.6 and 0.85; and / or a ratio between a length of the second conductive sheet (12) embedded in the insulating base (3) and a total length of the second conductive sheet (12) is between 0.6 and 0.

85. The thickness of the first conductive sheet (11) is between 2.6 mm and 3.2 mm, and a total thickness of the insulating base (3) and the first conductive sheet (11) on both sides of the thickness direction of the first conductive sheet (11) is between 8 mm and 15 mm; and / or the thickness of the second conductive sheet (12) is between 2.6 mm and 3.2 mm, and a total thickness of the insulating base (3) and the second conductive sheet (12) on both sides of the thickness direction of the second conductive sheet (12) is between 8 mm and 15 mm.

2. The active circuit breaker of claim 1, wherein, A ratio between the total thickness of the insulating base (3) and the first conductive sheet (11) on both sides of the thickness direction of the first conductive sheet (11) and the thickness of the first conductive sheet (11) is between 2.5 and 5.77; and / or a ratio between the total thickness of the insulating base (3) and the second conductive sheet (12) on both sides of the thickness direction of the second conductive sheet (12) and the thickness of the second conductive sheet (12) is between 2.5 and 5.

77.

3. The active circuit breaker according to claim 1 or 2, wherein, ​ 4. The active circuit breaker of any one of claims 1-3, wherein, ​ 5. The active circuit breaker of any one of claims 1-4, wherein, ​ 6. The active circuit breaker of any one of claims 1-5, wherein, The insulating base (3) comprises a first insulating layer (32) and a second insulating layer (33), the first insulating layer (32) and the second insulating layer (33) are respectively arranged on both sides of the first conductive sheet (11) in the thickness direction, the thickness of at least one of the first insulating layer (32) and the second insulating layer (33) is greater than the thickness of the first conductive sheet (11); and / or, the insulating base (3) comprises a third insulating layer (34) and a fourth insulating layer (35), the third insulating layer (34) and the fourth insulating layer (35) are respectively arranged on both sides of the second conductive sheet (12) in the thickness direction, the thickness of at least one of the third insulating layer (34) and the fourth insulating layer (35) is greater than the thickness of the second conductive sheet (12).

7. The active circuit breaker of any one of claims 1-6, wherein, The detonating device (2) is arranged between the first conductive sheet (11) and the second conductive sheet (12), the detonating device (2) has a first striker and a second striker, the first striker and the second striker are respectively used to strike the first conductive sheet (11) and the second conductive sheet (12) along the width direction of the first conductive sheet (11).

8. The power circuit breaker of claim 7 wherein, The first conductive sheet (11) is provided with a first through hole (111), along the width direction of the first conductive sheet (11), the first conductive sheet (11) is formed into a first weak part (112) on the side of the first through hole (111) facing the second conductive sheet (12), and the first conductive sheet (11) is formed into a first safety part (115) on the side of the first through hole (111) away from the second conductive sheet (12), the first striker is used to strike the first weak part (112); And / or, the second conductive sheet (12) is provided with a second through hole (121), along the width direction of the second conductive sheet (12), the second conductive sheet (12) is formed into a second weak part (122) on the side of the second through hole (121) facing the first conductive sheet (11), and the second conductive sheet (12) is formed into a second safety part (125) on the side of the first through hole (111) away from the first conductive sheet (11), the second striker is used to strike the second weak part (122).

9. The power circuit breaker of claim 8 wherein, The first through hole (111) is a curve type protruding towards away from the detonating device (2); And / or, the second through hole (121) is a curve type protruding towards away from the detonating device (2).

10. The active circuit breaker of claim 8 or 9, wherein, Part of the first conductive sheet (11) and the second conductive sheet (12) is embedded in the insulating base (3), Along the length direction of the first conductive sheet (11), the part of the first weak part (112) close to one end of the first conductive sheet (11) in the length direction is embedded in the insulating base (3) and forms a first reinforcing part (113), and the part close to the other end of the first conductive sheet (11) in the length direction is exposed outside the insulating base (3) and forms a first exposed part (114); And / or, along the length direction of the second conductive sheet (12), the second weak part (122) is embedded in the insulating base (3) and forms a second reinforcing part (123) near the one end of the length direction of the second conductive sheet (12), and forms a second exposed part (124) exposed outside the insulating base (3) near the other end of the length direction of the second conductive sheet (12).

11. The power circuit breaker of claim 10 wherein, The distance between the one end of the first through hole (111) away from the first exposed part (114) and the one end of the first conductive sheet (11) near the detonating device (2) in the width direction is H1, the distance between the one end of the first through hole (111) away from the first reinforcing part (113) and the one end of the first conductive sheet (11) near the detonating device (2) in the width direction is H2, and H1 < H2 is satisfied; And / or, the distance between the one end of the second through hole (121) away from the second exposed part (124) and the one end of the second conductive sheet (12) near the detonating device (2) in the width direction is H3, the distance between the one end of the second through hole (121) away from the second reinforcing part (123) and the one end of the second conductive sheet (12) near the detonating device (2) in the width direction is H4, and H3 < H4 is satisfied.

12. The circuit breaker of any one of claims 1-11, wherein, The two ends of the first conductive sheet (11) and the second conductive sheet (12) in the length direction are arranged outside the insulating base (3) and can be bent.

13. The power circuit breaker of any of claims 1-12, wherein, The conductive sheet assembly (1) further comprises: A third conductive sheet (13) is arranged between the first conductive sheet (11) and the second conductive sheet (12) in the width direction of the first conductive sheet (11), part of the third conductive sheet (13) is embedded in the insulating base (3), and the detonating device (2), the first conductive sheet (11) and the second conductive sheet (12) are arranged on the same side of the third conductive sheet (13) in the thickness direction.

14. The power circuit breaker of claim 13 wherein, A third conductive sheet (13) is arranged between the first conductive sheet (11) and the second conductive sheet (12) in the width direction of the first conductive sheet (11), part of the third conductive sheet (13) is embedded in the insulating base (3), and the detonating device (2), the first conductive sheet (11) and the second conductive sheet (12) are arranged on the same side of the third conductive sheet (13) in the thickness direction.

15. The power circuit breaker of claim 14 wherein, The length of the insulating layer on one side of the third conductive sheet (13) in the thickness direction is greater than the length of the first weak part (112) and / or the second weak part (122).

16. The power circuit breaker of any one of claims 1-15, wherein, The active circuit breaker further comprises: Two safety devices (4) are arranged on the insulating base (3), and the two safety devices (4) are arranged on the sides of the first conductive sheet (11) and the second conductive sheet (12) away from each other, respectively.

17. An electric machine controller wherein, It comprises: The active circuit breaker according to any one of claims 1-16. The active circuit breaker according to any one of claims 1-16.

18. The motor controller of claim 17, further comprising: The power assembly, the conductive sheet assembly (1) further comprises a third conductive sheet (13), the first conductive sheet (11), the second conductive sheet (12) and the third conductive sheet (13) are configured as a three-phase conductive member, one end of the first conductive sheet (11), the second conductive sheet (12) and the third conductive sheet (13) is connected to the power assembly, and the other end is used for connecting the motor.

19. An electric motor assembly, wherein, Comprising: The motor controller according to claim 17 or 18.

20. A vehicle, wherein, Comprising: The electric assembly according to claim 19.

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