Active circuit breaker, motor controller, electric assembly and vehicle

Abstract

The invention relates to the technical field of motor controllers, and discloses an active circuit breaker, a motor controller, an electric assembly and a vehicle, the active circuit breaker comprises a conducting strip assembly, the conducting strip assembly comprises a first conducting strip and a second conducting strip, and the first conducting strip and the second conducting strip are arranged at an interval in the width direction of the first conducting strip; and the detonating device is provided with a conductive pin, and the extension direction of the conductive pin is parallel to the thickness direction of the first conductive sheet. According to the active circuit breaker disclosed by the invention, the space in the thickness direction of the first conducting strip can be utilized for mounting the conducting pin, so that the space in the width and length directions of the first conducting strip can be more redundant, other structures of the motor controller are convenient to mount, and the internal space of the motor controller is optimized.

Description

Technical Field

[0001] The present invention relates to the technical field of motor controllers, and in particular to an active circuit breaker, a motor controller, an electric assembly and a vehicle. Background Art

[0002] At present, the protection of motor controllers mainly relies on circuit breakers. When a circuit fails (short circuit or other overload problems), the circuit breaker disconnects the electrical circuit for protection. In order to ensure the response speed, active circuit breakers are currently mainly used for protection. However, when the active circuit breaker breaks the conductive sheet through the detonation device, if the impact force is too large, the overall structure of the conductive sheet is easily directly knocked away or broken, which will affect other structures of the motor controller. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an active circuit breaker to improve the reliability of the insulating base covering the conductive sheet and reduce the conductive sheet from being separated from the insulating base due to impact.

[0004] The present invention also provides a motor controller, comprising the above-mentioned active circuit breaker.

[0005] The present invention also provides an electric assembly, comprising the above-mentioned motor controller.

[0006] The present invention also provides a vehicle, comprising the electric assembly mentioned above.

[0007] An active circuit breaker according to an embodiment of the present invention includes: a conductive sheet assembly, the conductive sheet assembly includes a first conductive sheet and a second conductive sheet, the first conductive sheet and the second conductive sheet are arranged at intervals in the width direction of the first conductive sheet; a detonating device, used to impact the first conductive sheet and the second conductive sheet to disconnect the first conductive sheet and the second conductive sheet respectively; and an insulating base, the conductive sheet assembly and the detonating device are arranged on the insulating base, and the projection of the detonating device in the thickness direction of the first conductive sheet and / or the second conductive sheet is at least partially located within the insulating base.

[0008] According to the active circuit breaker of the embodiment of the present invention, the detonating device and the conductive component are arranged on the insulating base, and the projection of the detonating device in the thickness direction of the conductive sheet is at least partially within the insulating base, so that the detonating device, the first conductive sheet and the second conductive sheet are subjected to a common force, the force 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.

[0009] In some embodiments of the present invention, a projection of the detonation device in a thickness direction of the first conductive sheet and / or the second conductive sheet is completely located within the insulating base.

[0010] In some embodiments of the present invention, both the first conductive sheet and the second conductive sheet are at least partially embedded in the insulating base, and the ratio of the length of the first conductive sheet located in the insulating base to the total length of the first conductive sheet is between 0.6-0.85; and / or, the ratio of the length of the second conductive sheet located in the insulating base to the total length of the second conductive sheet is between 0.6-0.85.

[0011] In some embodiments of the present invention, the thickness of the first conductive sheet is between 2.6 mm and 3.2 mm, and the total thickness of the insulating base covering both sides of the first conductive sheet in the thickness direction and 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, and the total thickness of the insulating base covering both sides of the second conductive sheet in the thickness direction and the second conductive sheet is between 8 mm and 15 mm.

[0012] In some embodiments of the present invention, the ratio of the total thickness of the insulating base and the first conductive sheet coated on both sides of the first conductive sheet in the thickness direction to the thickness of the first conductive sheet is between 2.5-5.77; and / or, the ratio of the total thickness of the insulating base and the second conductive sheet coated on both sides of the second conductive sheet in the thickness direction to the thickness of the second conductive sheet is between 2.5-5.77.

[0013] In some embodiments of the present invention, the insulating base includes a first insulating layer and a second insulating layer, which are respectively arranged on both sides of the first conductive sheet in the thickness direction, 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 includes a third insulating layer and a fourth insulating layer, which are respectively arranged on both sides of the second conductive sheet in the thickness direction, 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.

[0014] In some embodiments of the present invention, 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, and the first striker and the second striker are used to strike the first conductive sheet and the second conductive sheet respectively along the width direction of the first conductive sheet.

[0015] In some embodiments of the present invention, a first through hole is provided on the first conductive sheet, and along the width direction of the first conductive sheet, the first conductive sheet is formed as a first weak portion on the side of the first through hole facing the second conductive sheet, and the first conductive sheet is formed as a first insurance portion on the side of the first through hole facing away from the second conductive sheet, and the first striker is used to hit the first weak portion; and / or, a second through hole is provided on the second conductive sheet, and along the width direction of the second conductive sheet, the second conductive sheet is formed as a second weak portion on the side of the second through hole facing the first conductive sheet, and the second conductive sheet is formed as a second insurance portion on the side of the first through hole facing away from the first conductive sheet, and the second striker is used to hit the second weak portion.

[0016] In some embodiments of the present invention, the first through hole is in a curved shape that bulges away from the detonating device; and / or the second through hole is in a curved shape that bulges away from the detonating device.

[0017] In some embodiments of the present invention, the active circuit breaker further comprises: an insulating base, and the conductive sheet assembly and the detonating device are arranged on the insulating base.

[0018] In some embodiments of the present invention, portions of the first conductive sheet and the second conductive sheet are embedded in the insulating base, and along the length direction of the first conductive sheet, a portion of the first weak portion close to one end of the first conductive sheet in the length direction is embedded in the insulating base and forms a first reinforcement portion, and a portion close to the other end of the first conductive sheet in the length direction is exposed outside the insulating base to form a first exposed portion; and / or, along the length direction of the second conductive sheet, a portion of the second weak portion close to one end of the second conductive sheet in the length direction is embedded in the insulating base and forms a second reinforcement portion, and a portion close to the other end of the second conductive sheet in the length direction is exposed outside the insulating base to form a second exposed portion.

[0019] In some embodiments of the present invention, the distance between one end of the first through hole away from the first exposed portion and one end of the first conductive sheet in the width direction close to the detonating device is H1, the distance between one end of the first through hole away from the first reinforcement portion and one end of the first conductive sheet in the width direction close to the detonating device is H2, and the following conditions are satisfied: H1<H2; and / or, the distance between one end of the second through hole away from the second exposed portion and one end of the second conductive sheet in the width direction close to the detonating device is H3, the distance between one end of the second through hole away from the second reinforcement portion and one end of the second conductive sheet in the width direction close to the detonating device is H4, and the following conditions are satisfied: H3<H4.

[0020] In some embodiments of the present invention, two ends of the first conductive sheet and the second conductive sheet in the length direction are disposed outside the insulating base and are bendable.

[0021] In some embodiments of the present invention, the conductive sheet assembly further includes: a third conductive sheet, which is arranged between the first conductive sheet and the second conductive sheet along the width direction of the first conductive sheet, and a portion of the third conductive sheet is embedded in the insulating base, and the detonation device, the first conductive sheet and the second conductive sheet are arranged on the same side of the thickness direction of the third conductive sheet.

[0022] In some embodiments of the present invention, along the width direction of the first conductive sheet, the third conductive sheet is arranged between the first conductive sheet and the second conductive sheet, a portion of the third conductive sheet is embedded in the insulating base, and the detonation device, the first conductive sheet and the second conductive sheet are arranged on the same side of the third conductive sheet in the thickness direction.

[0023] In some embodiments of the present invention, the length of the insulating layer of the insulating base disposed on one side in the thickness direction of the third conductive sheet is greater than the length of the first weak portion and / or the second weak portion.

[0024] In some embodiments of the present invention, the active circuit breaker further comprises: a safety device, wherein two safety devices are provided on the insulating base, and the two safety devices are respectively provided on the side of the first conductive sheet and the second conductive sheet facing away from each other.

[0025] A motor controller according to an embodiment of the present invention includes: the above-mentioned active circuit breaker.

[0026] According to the motor controller of the embodiment of the present invention, the above-mentioned active circuit breaker is arranged, the detonating device and the conductive component are arranged on the insulating base, and the projection of the detonating device in the thickness direction of the conductive sheet is at least partially within the insulating base, so that the detonating device, the first conductive sheet and the second conductive sheet are subjected to force together, the force 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.

[0027] An electric assembly according to an embodiment of the present invention includes the above-mentioned motor controller.

[0028] According to the electric assembly of the embodiment of the present invention, the above-mentioned motor controller is arranged, the detonating device and the conductive component are arranged on the insulating base, and the projection of the detonating device in the thickness direction of the conductive sheet is at least partially within the insulating base, so that the detonating device, the first conductive sheet and the second conductive sheet are subjected to force together, the force 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] A vehicle according to an embodiment of the present invention includes the above-mentioned electric assembly.

[0030] According to the vehicle of the embodiment of the present invention, the above-mentioned electric assembly and the above-mentioned motor controller are arranged, the detonating device and the conductive component are arranged on the insulating base, and the projection of the detonating device in the thickness direction of the conductive sheet is at least partially within the insulating base, so that the detonating device, the first conductive sheet and the second conductive sheet are subjected to force together, the force 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] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0033] Figure 1 is a partial exploded view of a motor controller according to an embodiment of the present invention, wherein an active circuit breaker is also an exploded view;

[0034] Figure 2 is a partial exploded view of a motor controller according to an embodiment of the present invention, wherein the active circuit breaker is a three-dimensional view;

[0035] Figure 3 is an exploded view of an active circuit breaker according to an embodiment of the present invention;

[0036] Figure 4 is a perspective view of an active circuit breaker according to an embodiment of the present invention;

[0037] Figure 5 is a top view of an active circuit breaker according to an embodiment of the present invention, wherein part of the structure and size are shown;

[0038] Figure 6 yes Figure 5 Sectional view at AA in the middle;

[0039] Figure 7 1 is a top view of an active circuit breaker according to an embodiment of the present invention, wherein another part of the structure and size are shown.

[0040] Reference numerals:

[0041] 100. Motor controller;

[0042] 10. Active circuit breaker;

[0043] 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 insurance 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 insurance portion; 13. Third conductive sheet;

[0044] 2. Detonation device; 21. Conductive pin;

[0045] 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;

[0046] 4. Safety device;

[0047] 20. Control panel;

[0048] 30. Shell. DETAILED DESCRIPTION

[0049] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0050] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0051] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] Reference below Figure 1-Figure 7 An active circuit breaker 10 according to an embodiment of the present invention is described.

[0053] like Figure 1-Figure 7 As shown, the active circuit breaker 10 according to the embodiment of the present invention includes: a conductive sheet assembly 1 and a detonating device 2 .

[0054] Specifically, refer to Figure 1-Figure 7 The conductive sheet assembly 1 includes: a first conductive sheet 11 and a second conductive sheet 12, and the first conductive sheet 11 and the second conductive sheet 12 are arranged at intervals in the width direction of the first conductive sheet 11. The detonating 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 should be noted that the conductive pin 21 is used to be electrically connected to the control board 20, so that when the current is abnormal, the control board 20 controls the detonation of the detonating device 2, thereby disconnecting the first conductive sheet 11 and the second conductive sheet 12, thereby cutting off the circuit between the motor and the motor controller 100, thereby preventing the motor and the motor controller 100 from being damaged by abnormal current. The control board 20 is provided with a detection device such as a Hall chip or a Hall element, etc., which determines the size of the current passing through the conductive sheet assembly 1 by the size of the magnetic field, thereby determining whether the current on the conductive sheet assembly 1 is abnormal.

[0055] It can be understood that, by making the extension direction of the conductive pin 21 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, the installation of the conductive pin 21 can utilize the space in the thickness direction of the first conductive sheet 11, thereby making the space in the width and length directions of the first conductive sheet 11 more abundant, facilitating the installation of other structures of the motor controller 100, and optimizing the internal space of the motor controller 100.

[0056] According to the active circuit breaker 10 of the embodiment of the present invention, a conductive pin 21 is arranged on the detonating device 2, and 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, thereby making the space in the width and length directions of the first conductive sheet 11 more abundant, which is convenient for installing other structures of the motor controller 100 and optimizing the internal space of the motor controller 100.

[0057] In some embodiments of the present invention, Figure 1-Figure 6 As shown, the active circuit breaker 10 further includes: 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 providing 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 (conductive sheet assembly 1, detonating device 2 and insulating base 3) is installed in the housing 30 of the motor controller 100. Therefore, compared with the conductive sheet assembly 1 and the detonating device 2 being installed in the housing 30 separately (the installation operation in the housing 30 needs to be performed twice), the installation operation of the active circuit breaker 10 in the housing 30 can be reduced (the space in the housing 30 is limited, and the installation operation is performed in the housing 30, which is difficult to install), thereby simplifying the installation and disassembly maintenance and improving the installation and disassembly maintenance efficiency.

[0058] In some embodiments of the present invention, Figure 1-Figure 5 As shown, the detonating device 2 is disposed between the first conductive sheet 11 and the second conductive sheet 12 , and comprises a first striker and a second striker, which are used to strike the first conductive sheet 11 and the second conductive sheet 12 respectively along the width direction of the first conductive sheet 11 .

[0059] It should be noted that at least part of the first striker is an insulating member, and the insulating part of the first striker is used to strike the first conductive sheet 11, and at least part of the second striker is an insulating member, 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 insulating members such as plastic as a whole, or the first striker and the second striker can be partially insulating members, for example, the outer peripheral wall of the first striker and the second striker can be an insulating member, so as to avoid the circuit connection between the first striker and the first conductive sheet 11, and avoid the circuit connection between the second striker and the second conductive sheet 12. When the first striker is inserted into the broken part of the first conductive sheet 11, it can be ensured that the circuit is disconnected after the first conductive sheet 11 is broken, and when the second striker is inserted into the broken part of the second conductive sheet 12, it can be ensured that the circuit is disconnected after the second conductive sheet 12 is broken, thereby further ensuring that when the current is abnormal, the motor and the motor controller 100 cannot form a circuit, thereby improving safety.

[0060] It is understandable that, under normal circumstances, the first striker and the second striker are tightly contracted in the detonating device 2. When an abnormal current is detected, the detonating device 2 is detonated, so that the first striker and the second striker are ejected. The first striker hits the first conductive sheet 11 and the second striker hits the second conductive sheet 12, so that the first conductive sheet 11 and the second conductive sheet 12 are broken, thereby cutting off the circuit between the motor and the motor controller 100, thereby improving safety.

[0061] In some embodiments of the present invention, Figure 1-Figure 5 As shown, a first through hole 111 is provided on the first conductive sheet 11. Along the width direction of the first conductive sheet 11, the first conductive sheet 11 is formed as a first weak portion 112 on the side of the first through hole 111 facing the second conductive sheet 12. The first conductive sheet 11 is formed as a first insurance portion 115 on the side of the first through hole 111 facing away from the second conductive sheet 12. The first impact pin is used to impact the first weak portion 112.

[0062] It can be understood that the setting of the first through hole 111 weakens the structure of the first conductive sheet 11 in the width direction, so that the first conductive sheet 11 forms a first weak portion 112 on the side of the first through hole 111 facing the second conductive sheet 12. Under normal circumstances, the first weak portion 112 can carry current, so that the current passes through the first conductive sheet 11, so that the circuit between the motor and the motor controller 100 is connected, so that the motor can work normally. When the current is abnormal, the first weak portion 112 is broken by the first striker, and the current flows through the first insurance portion 115 at this time. The current density at the first insurance portion 115 increases, and the first insurance portion 115 is melted, thereby realizing the disconnection of the first conductive sheet 11, thereby cutting off the circuit between the motor and the motor controller 100, thereby improving safety.

[0063] In some embodiments of the present invention, the first striker is opposite to the first weak portion 112 of the first conductive sheet 11, so that when the current is abnormal, the first striker can more easily break the first weak portion 112 of the first conductive sheet 11, thereby further ensuring that when the current is abnormal, the motor and the motor controller 100 cannot form a loop, thereby improving safety.

[0064] In some embodiments of the present invention, Figure 1-Figure 5 As shown, a second through hole 121 is provided on the second conductive sheet 12. Along the width direction of the second conductive sheet 12, the second conductive sheet 12 is formed as a second weak portion 122 on the side of the second through hole 121 facing the first conductive sheet 11, and the second conductive sheet 12 is formed as a second insurance portion 125 on the side of the second through hole 121 facing away from the first conductive sheet 11. The second impact pin is used to impact the second weak portion 122.

[0065] It can be understood that the second through hole 121 is provided to weaken the structure of the second conductive sheet 12 in the width direction, so that the second conductive sheet 12 is formed as a second weak portion 122 on the side of the second through hole 121 facing the first conductive sheet 11. Under normal circumstances, the second weak portion 122 can carry current, so that the current passes through the second conductive sheet 12, so that the circuit between the motor and the motor controller 100 is connected, so that the motor can work normally. When the current is abnormal, the second weak portion 122 is hit and broken by the second striker. At this time, the current flows through the second insurance portion 125, and the current density at the second insurance portion 125 increases, so that the second insurance portion 125 is melted, thereby realizing the disconnection of the second conductive sheet 12, thereby cutting off the circuit between the motor and the motor controller 100, thereby improving safety.

[0066] In some embodiments of the present invention, the second striker is opposite to the second weak portion 122 of the second conductive sheet 12, so that when the current is abnormal, the second striker can more easily break the second weak portion 122 of the second conductive sheet 12, thereby further ensuring that when the current is abnormal, the motor and the motor controller 100 cannot form a loop, thereby improving safety.

[0067] In some embodiments of the present invention, Figure 5 and Figure 7 As shown, the first conductive sheet 11 is provided with a first through hole 111, and the first through hole 111 is a curved shape protruding toward and away from the detonator 2; thereby, 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 is smaller, so that the first weak portions 112 located at the two ends of the first through hole 111 are more easily broken, thereby further ensuring that when the current is abnormal, the motor and the motor controller 100 cannot form a loop, thereby improving safety.

[0068] In some embodiments of the present invention, Figure 5 and Figure 7 As shown, the second conductive sheet 12 is provided with a second through hole 121, and the second through hole 121 is a curved shape protruding away from the detonator 2. As a result, 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 facing the first conductive sheet 11 is small, so that the second weak parts 122 located at the two ends of the second through hole 121 are more easily broken, thereby further ensuring that when the current is abnormal, the motor and the motor controller 100 cannot form a loop, thereby improving safety.

[0069] In some embodiments of the present invention, Figure 1-Figure 5As shown, the first conductive sheet 11 and the second conductive sheet 12 are partially embedded in the insulating base 3, so that the first conductive sheet 11 and the second conductive sheet 12 can be installed on the insulating base 3 more stably. It should be noted that when the impact force generated by the detonator 2 is too large, the overall structure of the first conductive sheet 11 and the second conductive sheet 12 is easily directly knocked away or smashed, thereby affecting other structures of the motor controller 100. In the present invention, due to the protection of the insulating base 3, when the first conductive sheet 11 and the second conductive sheet 12 are hit, the overall structure of the first conductive sheet 11 and the second conductive sheet 12 is reduced from being knocked away or smashed, thereby protecting other structures of the motor controller 100.

[0070] In some embodiments of the present invention, Figure 1-Figure 5 As shown, the length of the first conductive sheet 11 and the second conductive sheet 12 is between 170 mm and 190 mm, for example, 170 mm, 180 mm, 185 mm or 190 mm, etc., thereby making 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, so that the voltage range that can be protected is wider.

[0071] In some embodiments of the present invention, Figure 1-Figure 5 As shown, the length of the first conductive sheet 11 and the second conductive sheet 12 located in the insulating base 3 is 120 mm-140 mm, for example, 120 mm, 130 mm, 135 mm or 140 mm, etc. Therefore, the insulating base 3 covers a sufficiently large range of the first conductive sheet 11 and the second conductive sheet 12, 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 occurrence of the first conductive sheet 11 and the second conductive sheet 12 being knocked away or broken is reduced.

[0072] In some embodiments of the present invention, Figure 1-Figure 7 As shown, the ratio of the length a1 of the first conductive sheet 11 located in the insulating base 3 to 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, and the insulating base 3 does not cover both ends of the length direction of the first conductive sheet 11. Therefore, the range of the insulating base 3 covering the first conductive sheet 11 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 occurrence of the first conductive sheet 11 being knocked away or broken is further reduced.

[0073] The insulating base 3 does not cover the two ends of the first conductive sheet 11 , so that the two ends of the first conductive sheet 11 are connected to the power component and the motor respectively, and the heat dissipation of the first conductive sheet 11 is also facilitated.

[0074] In some embodiments of the present invention, Figure 1-Figure 7 As shown, 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 0.6-0.85, such as 0.6, 0.7, 0.8 or 0.85, and the insulating base 3 does not cover both ends of the length direction of the second conductive sheet 12. Therefore, the range of the insulating base 3 covering the second conductive sheet 12 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 overall structure of the second conductive sheet 12 is further reduced from being knocked away or broken.

[0075] The insulating base 3 does not cover the two ends of the second conductive sheet 12 , so that the two ends of the second conductive sheet 12 are connected to the power component and the motor respectively, and the heat dissipation of the second conductive sheet 12 is also facilitated.

[0076] In some embodiments of the present invention, Figure 1-Figure 5 As shown, the thickness of the first conductive sheet 11 and the second conductive sheet 12 is in the range of 2.6 mm to 3.2 mm, for example, 2.6 mm, 3 mm, 3.1 mm or 3.2 mm, etc. Thus, 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 impacted, the occurrence of the overall structure of the first conductive sheet 11 and the second conductive sheet 12 being knocked away or smashed is further reduced, thereby protecting other structures of the motor controller 100.

[0077] In some embodiments of the present invention, Figure 1-Figure 6 As shown, the total thickness of the insulating base 3 and the first conductive sheet 11 covering both sides of the first conductive sheet 11 in the thickness direction is 8 mm-15 mm, such as 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.

[0078] In some embodiments of the present invention, Figure 1-Figure 6 As shown, the total thickness of the insulating base 3 and the first conductive sheet 11 covering both sides of the second conductive sheet 12 in the thickness direction is 8 mm-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.

[0079] In some embodiments of the present invention, Figure 3 and Figure 4As shown, the insulating base 3 includes 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. Therefore, 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 hit, the first conductive sheet 11 is less likely to be separated from the insulating base 3 due to excessive impact force, thereby reducing the first conductive sheet 11 from being separated from the motor controller 100 or the motor as a whole.

[0080] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, 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 a 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 first conductive sheet 11 is further reduced from being separated from the insulating base 3 due to excessive impact force, thereby reducing the first conductive sheet 11 from being separated from the motor controller 100 or the motor as a whole.

[0081] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the sum of the thickness of the first insulating layer 32 and the second insulating layer 33 is greater than twice the thickness of the first conductive sheet 11. Thus, 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 first conductive sheet 11 is further reduced from being separated from the insulating base 3 due to excessive impact force, thereby reducing the first conductive sheet 11 from being separated from the motor controller 100 or the motor as a whole.

[0082] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, 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. Therefore, 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 hit, the second conductive sheet 12 is less likely to be separated from the insulating base 3 due to excessive impact force, thereby reducing the second conductive sheet 12 from being separated from the motor controller 100 or the motor as a whole.

[0083] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, 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 thickness of the third insulating layer 34 and the fourth insulating layer 35 are both greater than the thickness of the second conductive sheet 12. Thus, at least one of the third insulating layer 34 and the fourth insulating layer 35 has a 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 second conductive sheet 12 is further reduced from being separated from the insulating base 3 due to excessive impact force, thereby reducing the second conductive sheet 12 from being separated from the motor controller 100 or the motor as a whole.

[0084] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the sum of the thickness of the third insulating layer 34 and the fourth insulating layer 35 is greater than twice the thickness of the second conductive sheet 12. Thus, 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 second conductive sheet 12 is further reduced from being separated from the insulating base 3 due to excessive impact force, thereby reducing the second conductive sheet 12 from being separated from the motor controller 100 or the motor as a whole.

[0085] In some embodiments of the present invention, Figure 5 As shown, 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 first conductive sheet 11 forms a first weak portion 112 on the side of the first through hole 111 facing the second conductive sheet 12, and the first conductive sheet 11 forms a first insurance portion 115 on the side of the first through hole 111 facing away from the second conductive sheet 12, and the first striker is used to strike the first weak portion 112. Along the length direction of the first conductive sheet 11, the portion of the first weak portion 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 reinforcement portion 113, and the portion 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 portion 114.

[0086] The first reinforcement portion 113 improves the structural strength of the first weak portion 112, so that when the first conductive sheet 11 is impacted, the first conductive sheet 11 is less likely to be knocked away or broken, thereby protecting other structures of the motor controller 100. The first exposed portion 114 can increase the heat dissipation effect of the first conductive sheet 11 during the current carrying process, and reduce the occurrence of thermal melting of the first conductive sheet 11.

[0087] In some embodiments of the present invention, Figure 5 As shown, the first conductive sheet 11 located at the first exposed portion 114 away from the first reinforcement portion 113 is embedded in the insulating base 3, and the insulating base 3 does not cover the two ends of the first conductive sheet 11 in the length direction, thereby further improving the protection of the first conductive sheet 11, so that when the first conductive sheet 11 is hit, the overall structure of the first conductive sheet 11 is reduced from being knocked away or broken.

[0088] In some embodiments of the present invention, Figure 5 and Figure 7 As shown, the first conductive sheet 11 forms a first sub-weak portion 1121 between an end of the first through hole 111 away from the first exposed portion 114 and a side of the first conductive sheet 11 in the width direction facing the second conductive sheet 12, the first striker is opposite to the first sub-weak portion 1121, and the first conductive sheet 11 forms a second sub-weak portion 1122 between an end of the first through hole 111 away from the first reinforcement portion 113 and a side of the first conductive sheet 11 in the width direction facing the second conductive sheet 12. Since the first striker is opposite to the first sub-weak portion 1121, the first striker can strike the first sub-weak portion 1121, thereby breaking the first sub-weak portion 1121, thereby disconnecting the first weak portion 112, and the second sub-weak portion 1122 will flip under the impact force, but will not break, thereby preventing the first weak portion 112 from falling.

[0089] In some embodiments of the present invention, Figure 5 As shown, 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 as a second weak portion 122 on the side of the second through hole 121 facing the first conductive sheet 11, and the second conductive sheet 12 is formed as a second insurance portion 125 on the side of the second through hole 121 facing away from the first conductive sheet 11. The second striker is used to strike the second weak portion 122. Along the length direction of the second conductive sheet 12, the portion of the second weak portion 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 portion 123, and the portion close to the other end of the second conductive sheet 12 in the length direction is exposed outside the insulating base 3 to form a second exposed portion 124.

[0090] The second reinforcing portion 123 improves the structural strength of the second weak portion 122, so that when the second conductive sheet 12 is impacted, the entire structure of the second conductive sheet 12 is less likely to be knocked off or broken, thereby protecting other structures of the motor controller 100. The second exposed portion 124 can increase the heat dissipation effect of the second conductive sheet 12 during the current carrying process, and reduce the occurrence of thermal melting of the second conductive sheet 12.

[0091] In some embodiments of the present invention, Figure 5 As shown, the second conductive sheet 12 located at the second exposed portion 124 away from the second reinforcement portion 123 is embedded in the insulating base 3, and the insulating base 3 does not cover the two 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 impacted, the occurrence of the second conductive sheet 12 being separated from the insulating base 3 is reduced.

[0092] In some embodiments of the present invention, Figure 5 and Figure 7 As shown, the second conductive sheet 12 forms a third sub-weak portion 1221 between one end of the second through hole 121 away from the second exposed portion 124 and one side of the second conductive sheet 12 in the width direction facing the first conductive sheet 11, the second striker is opposite to the third sub-weak portion 1221, and the second conductive sheet 12 forms a fourth sub-weak portion 1222 between one end of the second through hole 121 away from the second reinforcement portion 123 and one side of the second conductive sheet 12 in the width direction facing the first conductive sheet 11. Since the second striker is opposite to the third sub-weak portion 1221, the second striker can strike the third sub-weak portion 1221, thereby breaking the third sub-weak portion 1221, thereby disconnecting the second weak portion 122, and the fourth sub-weak portion 1222 will flip under the impact force, but will not break, thereby preventing the second weak portion 122 from falling.

[0093] In some embodiments of the present invention, Figure 5 As shown, a first through hole 111 is provided on the first conductive sheet 11, and the first conductive sheet 11 is formed as a first weak portion 112 at the first through hole 111. Along the length direction of the first conductive sheet 11, a portion of the first weak portion 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 reinforcement portion 113, and a portion close to the other end of the first conductive sheet 11 in the length direction is exposed outside the insulating base 3 to form a first exposed portion 114.

[0094] In some embodiments of the present invention, Figure 5As shown, the distance between the end of the first through hole 111 away from the first exposed portion 114 and the end of the first conductive sheet 11 close to the detonating device 2 in the width direction is H1, and the distance between the end of the first through hole 111 away from the first reinforcing portion 113 and the end of the first conductive sheet 11 close to the detonating device 2 in the width direction is H2, and the following conditions are satisfied: H1<H2;

[0095] Among them, since the structural strength of the first reinforcement part 113 is greater than the structural strength of the first exposed part 114, in order to improve the reliability of breaking the first reinforcement part 113, H1<H2 is adopted, so that the first reinforcement part 113 is easier to be broken, thereby further ensuring that when the current is abnormal, the motor and the motor controller 100 cannot form a loop, thereby improving safety.

[0096] In some embodiments of the present invention, Figure 5 As shown, a second through hole 121 is provided on the second conductive sheet 12, and the second conductive sheet 12 is formed as a second weak portion 122 at the second through hole 121. Along the length direction of the second conductive sheet 12, a portion of the second weak portion 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 reinforcement portion 123, and a portion close to the other end of the second conductive sheet 12 in the length direction is exposed outside the insulating base 3 to form a second exposed portion 124.

[0097] In some embodiments of the present invention, Figure 5 As shown, the distance between the end of the second through hole 121 away from the second exposed portion 124 and the end of the second conductive sheet 12 in the width direction close to the detonating device 2 is H3, and the distance between the end of the second through hole 121 away from the second reinforcement portion 123 and the end of the second conductive sheet 12 in the width direction close to the detonating device 2 is H4, and it satisfies: H3<H4.

[0098] Among them, since the structural strength of the second reinforcement part 123 is greater than the structural strength of the second exposed part 124, in order to improve the reliability of breaking the second reinforcement part 123, H1<H2 is adopted, so that the second reinforcement part 123 is easier to be broken, thereby further ensuring that when the current is abnormal, the motor and the motor controller 100 cannot form a loop, thereby improving safety.

[0099] In some embodiments of the present invention, both ends of the first conductive sheet 11 and the second conductive sheet 12 in the length direction are disposed outside the insulating base 3 and can be bent. Thus, by bending both 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, thereby improving applicability.

[0100] In some embodiments of the present invention, Figure 1-Figure 5As shown, the conductive sheet assembly 1 further includes: a third conductive sheet 13, which is arranged between the first conductive sheet 11 and the second conductive sheet 12 along the width direction of the first conductive sheet 11, and a portion 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 in the thickness direction of the third conductive sheet 13. The portion of the third conductive sheet 13 is embedded in the insulating base 3, so that the first conductive sheet 11, the second conductive sheet 12 and the third conductive sheet 13 are better integrated, 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.

[0101] It should be noted that, by providing 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 operation of the 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 circuit 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 be disconnected when the current is abnormal, the third conductive sheet 13 does not need to be configured to be disconnected when the current is abnormal, thereby simplifying the structure of the third conductive sheet 13.

[0102] 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 in the thickness direction of the third conductive sheet 13, the detonating device 2 can share a portion of the space along 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, thereby making the volume of the active circuit breaker 10 smaller.

[0103] In some embodiments of the present invention, Figure 3 , Figure 4 and Figure 7 As shown, the insulating base 3 includes a fifth insulating layer 36 and a sixth insulating layer 37, and 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 portion 112 and the second weak portion 122. For example, the length of the fifth insulating layer 36 is greater than the length of the first weak portion 112 and the second weak portion 122, or the length of the sixth insulating layer 37 is greater than the length of the first weak portion 112 and the second weak portion 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 portion 112 and the second weak portion 122.

[0104] It can be understood that since the structural strength of the first weak portion 112 and the second weak portion 122 in the width direction of the first conductive sheet 11 is relatively weak, 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 portion 112 and the second weak portion 122, the fifth insulating layer 36 and / or the sixth insulating layer 37 can cover the first weak portion 112 and the second weak portion 122 in the length direction of the third conductive sheet 13, thereby improving the overall force limit of the first conductive sheet 11, the second conductive sheet 12, the third conductive sheet 13 and the insulating base 3 in the width direction of the first conductive sheet 11, and further reducing the first conductive sheet 11 and the second conductive sheet 12 from being detached from the insulating base 3 due to impact.

[0105] In addition, the length of the fifth insulating layer 36 is greater than the length L of the first weak portion 112 and the second weak portion 122, so that the fifth insulating layer 36 has a sufficient length, so that the first conductive sheet 11, the second conductive sheet 12 and the third conductive sheet 13 are better integrated, 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 the force together, thereby improving the force limit and further reducing the occurrence of the first conductive sheet 11 and the second conductive sheet 12 detaching from the insulating base 3.

[0106] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the length of the first insulating layer 32 is greater than the length of the fifth insulating layer 36. As a result, the first insulating layer 32 covers the first conductive sheet 11 sufficiently, 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 being separated from the insulating base 3 due to excessive impact force, thereby reducing the first conductive sheet 11 from being separated from the motor controller 100 or the motor as a whole. At the same time, the third conductive sheet 13 can have a sufficient heat dissipation area to prevent the third conductive sheet 13 from being blown, so that the motor can work normally.

[0107] In some embodiments of the present invention, Figure 3 and Figure 4As shown, the length of the second insulating layer 33 is greater than the length of the sixth insulating layer 37. As a result, the second insulating layer 33 covers the first conductive sheet 11 sufficiently, 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 being separated from the insulating base 3 due to excessive impact force, thereby reducing the first conductive sheet 11 from being separated from the motor controller 100 or the motor as a whole. At the same time, the third conductive sheet 13 can have a sufficient heat dissipation area to prevent the third conductive sheet 13 from being blown, so that the motor can work normally.

[0108] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the length of the third insulating layer 34 is greater than the length of the fifth insulating layer 36. As a result, the third insulating layer 34 covers the second conductive sheet 12 sufficiently, 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 being separated from the insulating base 3 due to excessive impact force, thereby reducing the second conductive sheet 12 from being separated from the motor controller 100 or the motor as a whole. At the same time, the third conductive sheet 13 can have a sufficient heat dissipation area to prevent the third conductive sheet 13 from being blown, so that the motor can work normally.

[0109] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the length of the fourth insulating layer 35 is greater than the length of the sixth insulating layer 37. As a result, the fourth insulating layer 35 covers the second conductive sheet 12 sufficiently, 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 being separated from the insulating base 3 due to excessive impact force, thereby reducing the second conductive sheet 12 from being separated from the motor controller 100 or the motor as a whole. At the same time, the third conductive sheet 13 can have a sufficient heat dissipation area to prevent the third conductive sheet 13 from being blown, so that the motor can work normally.

[0110] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the length of the first insulating layer 32 is equal to the length of the second insulating layer 33, thereby making the covered areas on both sides of the first conductive sheet 11 in the thickness direction consistent, thereby simplifying the injection molding process of the first conductive sheet 11 on the insulating base 3 and improving production efficiency.

[0111] In some embodiments of the present invention, Figure 3 and Figure 4As shown, the length of the third insulating layer 34 is equal to the length of the fourth insulating layer 35, thereby making the covered areas on both sides of the second conductive sheet 12 in the thickness direction consistent, thereby simplifying the injection molding process of the second conductive sheet 12 on the insulating base 3 and improving production efficiency.

[0112] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the length of the fifth insulating layer 36 is equal to the length of the sixth insulating layer 37. Thus, the areas covered on both sides of the third conductive sheet 13 in the thickness direction are consistent, thereby simplifying the injection molding process of the third conductive sheet 13 on the insulating base 3 and improving production efficiency.

[0113] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the ratio of the length of the fifth insulating layer 36 to the length of the first insulating layer 32 is about 0.5-1.2, such as 0.5, 0.7, 0.8 or 1.2, etc. Therefore, the length of the fifth insulating layer 36 is appropriate, which can not only ensure the bonding force between the third conductive sheet 13 and the insulating base 3, but also ensure 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 the 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.

[0114] At the same time, the fifth insulating layer 36 can be prevented from being too long, thereby ensuring the heat dissipation effect of the third conductive sheet 13, so that the third conductive sheet 13 can have a sufficient heat dissipation area, avoiding the third conductive sheet 13 from being melted, and allowing the motor to work normally.

[0115] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the ratio of the length of the fifth insulating layer 36 to the length of the third insulating layer 34 is about 0.5-1.2, such as 0.5, 0.7, 0.8 or 1.2, etc. Therefore, the length of the fifth insulating layer 36 is appropriate, which can not only ensure the bonding force between the third conductive sheet 13 and the insulating base 3, but also ensure 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 the 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.

[0116] At the same time, the fifth insulating layer 36 can be prevented from being too long, thereby ensuring the heat dissipation effect of the third conductive sheet 13, so that the third conductive sheet 13 can have a sufficient heat dissipation area, avoiding the third conductive sheet 13 from being melted, and allowing the motor to work normally.

[0117] In some embodiments of the present invention, Figure 1-Figure 5 As shown, the length of the third conductive sheet 13 is 170mm-190mm, for example 170mm, 180mm, 185mm or 190mm, etc., thereby making the third conductive sheet 13 have a sufficient length, so that the selected fuse device 4 can be longer and the protectable voltage range is wider.

[0118] In some embodiments of the present invention, Figure 1-Figure 5 As shown, the length of the third conductive sheet 13 located in the insulating base 3 is 120 mm-140 mm, such as 120 mm, 130 mm, 135 mm or 140 mm, etc. Therefore, 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 the 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 knocked away or broken.

[0119] In some embodiments of the present invention, Figure 1-Figure 7 As shown, the ratio of the length a3 of the third conductive sheet 13 located in the insulating base 3 to the length b3 of the third conductive sheet 13 is between 0.6-0.85, such as 0.6, 0.7, 0.8 or 0.85, and the insulating base 3 does not cover the two ends of the length direction of the third conductive sheet 13. Therefore, 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 the 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 knocked away or broken.

[0120] The insulating base 3 does not cover the two ends of the third conductive sheet 13 , so that the two ends of the third conductive sheet 13 are connected to the power component and the motor respectively, and the heat dissipation of the third conductive sheet 13 is also facilitated.

[0121] In some embodiments of the present invention, Figure 1-Figure 6As shown, the total thickness of the insulating base 3 and the first conductive sheet 11 covering both sides of the second conductive sheet 12 in the thickness direction is 8 mm-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.

[0122] In some embodiments of the present invention, Figure 1-Figure 5 As shown, the thickness of the third conductive sheet 13 is 2.8mm-3.2mm, for example, 2.8mm, 3mm, 3.1mm or 3.2mm, etc., so that the third conductive sheet 13 has a sufficient thickness, thereby ensuring the structural strength of the third conductive sheet 13, so that when the first conductive sheet 11 and the second conductive sheet 12 are impacted, the overall force limit of the first conductive sheet 11, the second conductive sheet 12, the third conductive sheet 13 and the insulating base 3 is increased, and the occurrence of the overall structure of the first conductive sheet 11 and the second conductive sheet 12 being knocked away or smashed is further reduced, thereby protecting other structures of the motor controller 100.

[0123] In some embodiments of the present invention, Figure 1 , Figure 2 and Figure 4 As shown, the active circuit breaker 10 further includes: a safety device 4, which is two and arranged on the insulating base 3, and the two safety devices 4 are respectively arranged on the side of the first conductive sheet 11 and the second conductive sheet 12 away from each other. It should be noted that the two safety devices 4 are respectively connected in parallel with the first conductive sheet 11 and the second conductive sheet 12. After the first conductive sheet 11 and the second conductive sheet 12 are broken, the resistance increases sharply, and the current at the break decreases rapidly. A large amount of current flows into the parallel safety devices 4, and the safety devices 4 are melted under the action of the large current. Since the melting time is greater than the time when the first conductive sheet 11 and the second conductive sheet 12 are broken and move to a reliable insulation distance, the arc generated by the disconnection of the first conductive sheet 11 and the second conductive sheet 12 is avoided, and the arc extinguishing effect is achieved, thereby improving the reliability of the active circuit breaker 10.

[0124] In some embodiments of the present invention, Figure 1 , Figure 2 and Figure 4 As shown, the two safety devices 4 are respectively arranged on the side of the first conductive sheet 11 and the second conductive sheet 12 away from each other, so that the two safety devices 4 can be arranged away from the detonating device 2, thereby reducing the occurrence of the detonating device 2 crashing the safety device 4 and reducing the occurrence of the safety device 4 failing, thereby improving the arc extinguishing reliability of the safety device 4.

[0125] In addition, the safety device 4 is connected to the insulating base 3 via fasteners such as screws, thereby improving the installation stability of the safety device 4.

[0126] Reference below Figure 1-Figure 3 A motor controller 100 according to an embodiment of the present invention is described.

[0127] like Figure 1-Figure 3 As shown, the motor controller 100 according to the embodiment of the present invention includes: the above-mentioned active circuit breaker 10 and a control board 20.

[0128] Specifically, refer to Figure 1-Figure 3 , the conductive pin 21 is connected to the control board 20 and is 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 to the control board 20, so that when the current is abnormal, the control board 20 controls the detonation of the detonation device 2, thereby disconnecting the first conductive sheet 11 and the second conductive sheet 12, thereby cutting off the circuit between the motor and the motor controller 100, thereby preventing the motor and the motor controller 100 from being damaged by abnormal current. The control board 20 is provided with a detection device such as a Hall chip or a Hall element, which determines the magnitude of the current passing through the conductive sheet assembly 1 by the magnitude of the magnetic field, thereby determining whether the current on the conductive sheet assembly 1 is abnormal.

[0129] The conductive pin 21 is connected to the control board 20 and is perpendicular to the control board 20, so that the installation of the conductive pin 21 can further 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, which is convenient for installing other structures of the motor controller 100 and optimizing the internal space of the motor controller 100.

[0130] According to the motor controller 100 of the embodiment of the present invention, by setting the above-mentioned active circuit breaker 10, a conductive pin 21 is set on the detonating device 2, and 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, which is convenient for installing other structures of the motor controller 100 and optimizing the internal space of the motor controller 100.

[0131] In some embodiments of the present invention, the control board 20 is directly connected to the conductive pin 21. It can be understood that the conductive pin 21 has a pin, and the control board 20 is connected to the pin on the conductive pin 21 by welding, thereby reducing the number of connecting parts between the control board 20 and the conductive pin 21, making the structure simpler.

[0132] In some embodiments of the present invention, the conductive pin 21 has a plug-in connector, and the control board 20 has a plug-in slot that matches the plug-in connector. Therefore, through the mutual cooperation between the plug-in connector and the plug-in slot, the connection between the conductive pin 21 and the control board 20 is more reliable, and the connection convenience between the conductive pin 21 and the control board 20 is also improved, which facilitates the installation, disassembly and maintenance of the conductive pin 21 and the control board 20.

[0133] In some embodiments of the present invention, Figure 1-Figure 4 As shown, the insulating base 3 is provided with a connecting column 31, and the connecting column 31 is connected to the control board 20. It can be understood that the setting of the connecting column 31 improves the reliability and stability of the installation and fixation of the control board 20 on the insulating base 3. At the same time, the setting of the connecting column 31 can raise the installation surface of the control board 20, thereby avoiding interference with the detonating device 2.

[0134] In some embodiments of the present invention, Figure 1-Figure 4 As shown, 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 of the thickness direction of the third conductive sheet 13, so that the connecting column 31 can share a part of the space along 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, thereby making the volume of the active circuit breaker 10 smaller.

[0135] In some embodiments of the present invention, Figure 1-Figure 4 As shown, the connecting posts 31 are multiple and spaced apart, thereby further improving the reliability and stability of the installation and fixation of the control board 20 on the insulating base 3. Figure 1-Figure 4 In the example shown, there are two connecting pillars 31 , but the present invention is not limited thereto, and there may be more connecting pillars 31 , such as 3, 4, 5 or 6.

[0136] In some embodiments of the present invention, the motor controller 100 also includes: a power component, the conductive sheet component 1 also includes a third conductive sheet 13, the first conductive sheet 11, the second conductive sheet 12 and the third conductive sheet 13 are constructed as three-phase conductive parts, one end of the first conductive sheet 11, the second conductive sheet 12 and the third conductive sheet 13 is connected to the power component, and the other end is used to connect to the motor.

[0137] It can be understood that the conductive sheet assembly 1 is formed as a three-phase conductive part of the motor, that is, the active circuit breaker 10 and the motor share the conductive sheet assembly 1. Therefore, there is no need to set an additional adapter on the active circuit breaker 10 to connect the conductive sheet assembly 1 (three-phase conductive part) of the motor, thereby simplifying the structure.

[0138] The following describes an electric powertrain according to an embodiment of the present invention.

[0139] An electric assembly according to an embodiment of the present invention includes the above-mentioned motor controller.

[0140] According to the electric assembly of the embodiment of the present invention, by setting the above-mentioned motor controller and the above-mentioned active circuit breaker 10, a conductive pin 21 is set on the detonator 2, and 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, thereby making the space in the width and length directions of the first conductive sheet 11 more abundant, which is convenient for installing other structures of the motor controller 100 and optimizing the internal space of the motor controller 100.

[0141] A vehicle according to an embodiment of the present invention is described below.

[0142] A vehicle according to an embodiment of the present invention includes the above-mentioned electric assembly.

[0143] According to the vehicle of the embodiment of the present invention, by setting the above-mentioned electric assembly, setting the above-mentioned motor controller, setting the above-mentioned active circuit breaker 10, a conductive pin 21 is set on the detonator 2, and 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, which is convenient for installing other structures of the motor controller 100 and optimizing the internal space of the motor controller 100.

[0144] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0145] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An active circuit breaker, characterized in that: include: A conductive sheet assembly, the conductive sheet assembly comprising a first conductive sheet and a second conductive sheet, wherein the first conductive sheet and the second conductive sheet are spaced apart in a width direction of the first conductive sheet; An ignition device, used for striking the first conductive sheet and the second conductive sheet, so as to disconnect the first conductive sheet and the second conductive sheet respectively; It also includes an insulating base, the conductive sheet assembly and the detonating device are arranged on the insulating base, and the projection of the detonating device in the thickness direction of the first conductive sheet and / or the second conductive sheet is at least partially located in the insulating base.

2. The active circuit breaker according to claim 1, characterized in that: The projection of the detonation device in the thickness direction of the first conductive sheet and / or the second conductive sheet is completely located within the insulating base.

3. The active circuit breaker according to claim 1, characterized in that: The first conductive sheet and the second conductive sheet are both at least partially embedded in the insulating base, and the ratio of the length of the first conductive sheet located in the insulating base to the total length of the first conductive sheet is between 0.6-0.85; and / or the ratio of the length of the second conductive sheet located in the insulating base to the total length of the second conductive sheet is between 0.6-0.

85.

4. The active circuit breaker according to claim 1, characterized in that: The thickness of the first conductive sheet is between 2.6 mm and 3.2 mm, and the total thickness of the insulating base covering both sides of the first conductive sheet in the thickness direction and 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, and the total thickness of the insulating base covering both sides of the second conductive sheet in the thickness direction and the second conductive sheet is between 8 mm and 15 mm.

5. The active circuit breaker according to claim 1, characterized in that: The ratio of the total thickness of the insulating base and the first conductive sheet covered on both sides of the first conductive sheet in the thickness direction to the thickness of the first conductive sheet is between 2.5-5.77; and / or the ratio of the total thickness of the insulating base and the second conductive sheet covered on both sides of the second conductive sheet in the thickness direction to the thickness of the second conductive sheet is between 2.5-5.

77.

6. The active circuit breaker according to claim 1, characterized in that: The insulating base includes a first insulating layer and a second insulating layer, which are respectively arranged on both sides of the first conductive sheet in the thickness direction, 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 includes a third insulating layer and a fourth insulating layer, which are respectively arranged on both sides of the second conductive sheet in the thickness direction, 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.

7. The active circuit breaker according to claim 1, characterized in that: The detonating device is disposed between the first conductive sheet and the second conductive sheet, and comprises a first striker and a second striker, wherein the first striker and the second striker are respectively used for striking the first conductive sheet and the second conductive sheet along the width direction of the first conductive sheet.

8. The active circuit breaker according to claim 7, characterized in that: A first through hole is provided on the first conductive sheet, and along the width direction of the first conductive sheet, the first conductive sheet is formed as a first weak portion on a side of the first through hole facing the second conductive sheet, and the first conductive sheet is formed as a first insurance portion on a side of the first through hole facing away from the second conductive sheet, and the first striker is used to strike the first weak portion; and / or, A second through hole is provided on the second conductive sheet. Along the width direction of the second conductive sheet, the second conductive sheet is formed as a second weak portion on the side of the second through hole facing the first conductive sheet, and the second conductive sheet is formed as a second insurance portion on the side of the first through hole away from the first conductive sheet. The second striker is used to hit the second weak portion.

9. The active circuit breaker according to claim 8, characterized in that: The first through hole is in a curved shape protruding away from the detonating device; And / or, the second through hole is in a curved shape convex toward and away from the detonating device.

10. The active circuit breaker according to claim 8, characterized in that: Parts of the first conductive sheet and the second conductive sheet are embedded in the insulating base. Along the length direction of the first conductive sheet, a portion of the first weak portion close to one end of the first conductive sheet in the length direction is embedded in the insulating base and forms a first reinforcement portion, and a portion close to the other end of the first conductive sheet in the length direction is exposed outside the insulating base to form a first exposed portion; and / or, Along the length direction of the second conductive sheet, the second weak portion near one end of the second conductive sheet in the length direction is embedded in the insulating base and forms a second reinforcement portion, and the portion near the other end of the second conductive sheet in the length direction is exposed outside the insulating base to form a second exposed portion.

11. The active circuit breaker according to claim 10, characterized in that: The distance between the end of the first through hole away from the first exposed portion and the end of the first conductive sheet in the width direction close to the detonating device is H1, and the distance between the end of the first through hole away from the first reinforcing portion and the end of the first conductive sheet in the width direction close to the detonating device is H2, and the following conditions are satisfied: H1<H2; and / or, The distance between one end of the second through hole away from the second exposed portion and one end of the second conductive sheet in the width direction close to the detonating device is H3, the distance between one end of the second through hole away from the second reinforcement portion and one end of the second conductive sheet in the width direction close to the detonating device is H4, and the following conditions are satisfied: H3<H4.

12. The active circuit breaker according to claim 1, characterized in that: Two ends of the first conductive sheet and the second conductive sheet in the length direction are arranged outside the insulating base and can be bent.

13. The active circuit breaker according to claim 1, characterized in that: The conductive sheet assembly further comprises: A third conductive sheet is disposed between the first conductive sheet and the second conductive sheet along the width direction of the first conductive sheet, a portion of the third conductive sheet is embedded in the insulating base, and the detonating device, the first conductive sheet and the second conductive sheet are disposed on the same side of the third conductive sheet in the thickness direction.

14. The active circuit breaker according to claim 13, characterized in that: Along the width direction of the first conductive sheet, the third conductive sheet is arranged between the first conductive sheet and the second conductive sheet, a portion of the third conductive sheet is embedded in the insulating base, and the detonation device, the first conductive sheet and the second conductive sheet are arranged on the same side of the thickness direction of the third conductive sheet.

15. The active circuit breaker according to claim 14, characterized in that: The length of the insulating layer of the insulating base disposed on one side in the thickness direction of the third conductive sheet is greater than the length of the first weak portion and / or the second weak portion.

16. The active circuit breaker according to claim 1, characterized in that: The active circuit breaker also includes: A safety device, wherein two of the safety devices are arranged on the insulating base, and the two safety devices are respectively arranged on the side of the first conductive sheet and the second conductive sheet facing away from each other.

17. A motor controller, characterized in that: include: An active circuit breaker according to any one of claims 1 to 16.

18. The motor controller according to claim 17, further comprising: The power component, the conductive sheet component also includes a third conductive sheet, the first conductive sheet, the second conductive sheet and the third conductive sheet are constructed as a three-phase conductive member, one end of the first conductive sheet, the second conductive sheet and the third conductive sheet is connected to the power component, and the other end is used to connect to the motor.

19. An electric assembly, characterized in that: include: A motor controller according to claim 17 or 18.

20. A vehicle, characterized in that: include: The electric powertrain assembly according to claim 19.

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