Circuit breaker assembly, motor controller assembly, powertrain, and vehicle

Abstract

A circuit breaker assembly (100), a motor controller assembly (102), a powertrain (101), and a vehicle (1000). The circuit breaker assembly comprises: a plurality of conductive plates (41) arranged at intervals on an insulating housing (1), the plurality of conductive plates (41) comprising a first conductive plate (42) and a second conductive plate (43); and cut-off devices, the cut-off devices comprising a first cut-off device (2) and a second cut-off device (3), the first cut-off device (2) and the second cut-off device (3) both being provided on the insulating housing (1), the first cut-off device (2) being used for punching off the first conductive plate (42), and the second cut-off device (3) being used for punching off the second conductive plate (43).

Description

Circuit breaker assembly, motor controller assembly, powertrain, and vehicle

[0001] Cross Reference to Related Applications

[0002] The present application claims priority to the Chinese patent application No. 2024224178467, filed on September 29, 2024, entitled “Circuit breaker assembly, motor controller assembly, powertrain, and vehicle”, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

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

[0004] The internal structure of a new energy vehicle is more complex, which leads to a high electrical safety risk of the vehicle. Therefore, a safety device needs to be arranged inside the vehicle. The safety device can be a circuit breaker. With the continuous development of vehicles, the integration level of modules gradually increases, and the redundant space inside the structure decreases, which brings great challenges to the arrangement and design of the safety device. The existing circuit breaker occupies a large volume, and there is room for improvement. 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 provides a circuit breaker assembly, which has a simple structure, can reduce the occupied space, has a high integration level, thereby reducing the setting cost, improving the lightweight, and improving the structural strength, ensuring the structural stability during the action process and after the action of the circuit breaker assembly, and improving the use safety.

[0006] The circuit breaker assembly according to the embodiments of the present application comprises: an insulating shell; a plurality of conductive plates, the plurality of conductive plates are arranged at intervals in the insulating shell, and the plurality of conductive plates comprise a first conductive plate and a second conductive plate; and a cutting device, the cutting device comprises a first cutting device and a second cutting device, the first cutting device and the second cutting device are arranged in the insulating shell, the first cutting device is used for cutting off the first conductive plate, and the second cutting device is used for cutting off the second conductive plate.

[0007] The circuit breaker assembly according to the embodiments of the present application integrates a plurality of conductive plates and two cutting devices in one insulating shell, thereby reducing the occupied space of the circuit breaker assembly, having a simple structure, a high integration level, and a reduced setting cost, thereby improving the lightweight, and having the insulating shell, improving the structural strength, ensuring the structural stability during the action process and after the action of the circuit breaker assembly, improving the use safety of the circuit breaker assembly, having a better use effect, and having a wider application range.

[0008] The circuit breaker assembly according to some embodiments of the present application, the insulating shell is a one-piece structure.

[0009] The circuit breaker assembly according to some embodiments of the present application, the insulating shell comprises an intermediate baffle plate arranged between the first conductive plate and the second conductive plate, the first cutting device is configured to apply a force to the first conductive plate towards the intermediate baffle plate to break the first conductive plate, and the second cutting device is configured to apply a force to the second conductive plate towards the intermediate baffle plate to break the second conductive plate.

[0010] The circuit breaker assembly according to some embodiments of the present application, the first conductive plate is provided with a first weak part and a second weak part, and when the first cutting device impacts the first conductive plate, the first weak part is broken, and part of the first conductive plate is flipped towards the intermediate baffle plate around the second weak part.

[0011] The circuit breaker assembly according to some embodiments of the present application, the insulating shell further comprises a first rib plate arranged on a side of the intermediate baffle plate close to the first conductive plate, and a width of the first rib plate close to the first weak part is greater than a width of the first rib plate close to the second weak part.

[0012] The circuit breaker assembly according to some embodiments of the present application, a thickness of the intermediate baffle plate close to the first weak part is greater than a thickness of the intermediate baffle plate close to the second weak part.

[0013] The circuit breaker assembly according to some embodiments of the present application, the first rib plate is integrally formed on a side of the intermediate baffle plate close to the first conductive plate, and a width of the first rib plate is gradually reduced along a distribution direction of the first weak part and the second weak part.

[0014] The circuit breaker assembly according to some embodiments of the present application, the second conductive plate is provided with a third weak part and a fourth weak part, and when the second cutting device impacts the second conductive plate, the third weak part is broken, and part of the second conductive plate is flipped towards the intermediate baffle plate around the fourth weak part.

[0015] The circuit breaker assembly according to some embodiments of the present application, the insulating shell further comprises a second rib plate arranged on a side of the intermediate baffle plate close to the second conductive plate, and a width of the second rib plate close to the third weak part is greater than a width of the second rib plate close to the fourth weak part.

[0016] The circuit breaker assembly according to some embodiments of the present application, a thickness of the intermediate baffle plate close to the third weak part is greater than a thickness of the intermediate baffle plate close to the fourth weak part.

[0017] According to the circuit breaker assembly of some embodiments of the present application, the plurality of conductive plates further comprises a third conductive plate disposed on a side of the first conductive plate away from the intermediate baffle, the first cutting device is configured to simultaneously cut off the first conductive plate and the third conductive plate in opposite directions, and the insulating shell further comprises a first partition plate disposed on one end of the insulating shell, the first partition plate being located on a side of the third conductive plate away from the intermediate baffle.

[0018] The plurality of conductive plates further comprises a fourth conductive plate disposed on a side of the second conductive plate away from the intermediate baffle, the second cutting device is configured to simultaneously cut off the second conductive plate and the fourth conductive plate in opposite directions, and the insulating shell further comprises a second partition plate disposed on the other end of the insulating shell, the second partition plate being located on a side of the fourth conductive plate away from the intermediate baffle.

[0019] According to the circuit breaker assembly of some embodiments of the present application, the insulating shell further comprises a reinforcing beam extending along the distribution direction of the first conductive plate, the intermediate baffle and the second conductive plate, and the first conductive plate, the intermediate baffle and the second conductive plate are connected to the reinforcing beam respectively.

[0020] According to the circuit breaker assembly of some embodiments of the present application, the reinforcing beam is a plurality of reinforcing beams, and the plurality of reinforcing beams are spaced apart.

[0021] According to the circuit breaker assembly of some embodiments of the present application, the first conductive plate is formed with a first accommodating space on the back side of the position directly opposite to the first cutting device, and the first conductive plate is adapted to deform towards the first accommodating space after being cut off.

[0022] And / or, the second conductive plate is formed with a second accommodating space on the back side of the position directly opposite to the second cutting device, and the second conductive plate is adapted to deform towards the second accommodating space after being cut off.

[0023] According to the circuit breaker assembly of some embodiments of the present application, the first conductive plate and / or the second conductive plate is provided with an arc-extinguishing fuse device at the cutting position.

[0024] According to the circuit breaker assembly of some embodiments of the present application, the conductive plate comprises a first conductive section, a weak section and a second conductive section distributed in sequence in a first direction, the weak section being connected between the first conductive section and the second conductive section, and the cutting device is adapted to impact the weak section.

[0025] According to the circuit breaker assembly of some embodiments of the present application, a first weakening groove is formed at the connection between the weak section and the first conductive section, and the cutting device is directly opposite to the first weakening groove in a second direction.

[0026] According to the circuit breaker assembly of some embodiments of the present application, at least some of the plurality of conductive plates are adapted to connect to a motor.

[0027] The present application also provides a motor controller assembly.

[0028] According to the motor controller assembly of embodiments of the present application, comprising a first inverter, a second inverter and any of the above-mentioned circuit breaker assemblies, one end of the first conductive plate is connected to the first inverter and the other end is adapted to connect to a first motor, one end of the second conductive plate is connected to the second inverter and the other end is adapted to connect to a second motor.

[0029] The present application also provides a powertrain.

[0030] According to the powertrain of embodiments of the present application, comprising the above-mentioned motor controller assembly.

[0031] The present application also provides a vehicle.

[0032] According to the vehicle of embodiments of the present application, comprising any of the above-mentioned circuit breaker assemblies or the above-mentioned motor controller assembly.

[0033] The vehicle, the powertrain, the motor controller assembly and the above-mentioned circuit breaker assembly have the same advantages over the prior art, which will not be repeated here.

[0034] 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

[0035] 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 appended drawings, wherein:

[0036] Fig. 1 is a structural schematic diagram of a circuit breaker assembly according to embodiments of the present application;

[0037] Fig. 2 is a structural schematic diagram of a circuit breaker assembly according to embodiments of the present application;

[0038] Fig. 3 is a structural schematic diagram of a conductive plate according to embodiments of the present application;

[0039] Fig. 4 is a structural schematic diagram of an insulating housing and a three-phase conductive row according to embodiments of the present application;

[0040] Fig. 5 is a structural schematic diagram of a cutting device according to embodiments of the present application;

[0041] Fig. 6 is a sectional view of a cutting device according to embodiments of the present application;

[0042] Fig. 7 is a structural schematic diagram of an ignition device according to an embodiment of the present application;

[0043] Fig. 8 is a sectional view of an insulating housing according to an embodiment of the present application;

[0044] Fig. 9 is a structural schematic diagram of an insulating housing according to an embodiment of the present application;

[0045] Fig. 10 is a structural diagram of a vehicle according to an embodiment of the present application;

[0046] Fig. 11 is a structural diagram of a power assembly according to an embodiment of the present application.

[0047] Reference signs: vehicle 1000, circuit breaker assembly 100, power assembly 101, motor controller assembly 102, insulating housing 1, intermediate baffle 11, first baffle 111, second baffle 112, first partition 12, second partition 13, reinforcing beam 14, arc extinguishing fuse 15, first cutting device 2, second cutting device 3, mounting shell 31, steel pipe 32, sealing ring 33, impact head 34, charge chamber 35, ignition device 36, splicing piece 361, ignition tube 362, conductive plate 41, first conductive section 411, weak section 412, second conductive section 413, first conductive plate 42, first weak part 421, second weak part 422, first accommodating space 423, second conductive plate 43, third weak part 431, fourth weak part 432, second accommodating space 433, third conductive plate 44, fifth weak part 441, sixth weak part 442, third accommodating space 443, fourth conductive plate 45, seventh weak part 451, eighth weak part 452, fourth accommodating space 453. DETAILED DESCRIPTION

[0048] Embodiments of the present application are described in detail below with reference to the accompanying drawings. Examples of the embodiments are shown in the drawings, in which the same or similar reference numerals are used throughout to designate the same or similar elements or elements having the same or similar functions. The embodiments described below by reference to the drawings are exemplary only, and are used only for the purpose of explaining the present application, and are not to be understood as limiting the present application.

[0049] In the description of the present application, it should be understood that 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 indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the features defined as "first" and "second" can be explicitly or implicitly included one or more features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0050] In the description of the present application, it should be noted that unless otherwise 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, and 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.

[0051] Unless otherwise specified, the front-rear direction in the present application is the longitudinal direction of the vehicle 1000, i.e. the X direction; the left-right direction is the transverse direction of the vehicle 1000, i.e. the Y direction; and the up-down direction is the vertical direction of the vehicle 1000, i.e. the Z direction.

[0052] The circuit breaker assembly 100 according to the embodiments of the present application will be described below with reference to FIGS. 1-11. The circuit breaker assembly 100 has a simple structure, can reduce the occupied space, has high integration, thereby reducing the installation cost, improving the lightweight, and improving the structural strength, ensuring the structural stability during the operation of the circuit breaker assembly 100 and after the operation is completed, and improving the safety in use.

[0053] As shown in FIGS. 1-11, the circuit breaker assembly 100 according to one embodiment of the present application comprises an insulating housing 1, a plurality of conductive plates 41 and a cutting device.

[0054] The plurality of conductive plates 41 are arranged at intervals in the insulating housing 1, the plurality of conductive plates 41 comprise a first conductive plate 42 and a second conductive plate 43, the cutting device comprises a first cutting device 2 and a second cutting device 3, the first cutting device 2 and the second cutting device 3 are arranged in the insulating housing 1, the first cutting device 2 is used to punch off the first conductive plate 42, and the second cutting device 3 is used to punch off the second conductive plate 43.

[0055] The circuit breaker assembly 100 refers to a device capable of carrying the current of a normal circuit and breaking the current of an abnormal circuit under specified conditions. When a serious overload or short circuit and under-voltage fault occurs in an electrical system, especially a high-voltage circuit, the circuit breaker assembly can automatically cut off the conducting circuit, and the circuit breaker assembly 100 is safe, reliable, highly automated, and widely used.

[0056] Specifically, the circuit breaker assembly 100 is provided with an insulating shell 1, which can be made into an integral part by injection molding, and the insulating shell 1 is arranged at the outermost side of the circuit breaker assembly 100, which can provide support and protection for the internal components of the circuit breaker assembly 100. An installation space can be formed in the insulating shell 1, and the components of the circuit breaker assembly 100 can be installed in the installation space of the insulating shell 1, improving the integration of the circuit breaker assembly 100. The insulating shell 1 is made of insulating material, which can insulate the internal components from the outside and ensure the reliability of the internal components, and can prevent the insulating shell 1 from conducting electricity outward, improving the safety of the installation.

[0057] In addition, the insulating shell 1 is provided with a plurality of conductive plates 41, at least part of which extends out of the insulating shell 1 and can be in communication with external circuits for conducting electricity. The plurality of conductive plates 41 are spaced apart in the insulating shell 1 and can serve to transport current and connect electrical equipment in the conducting circuit. The plurality of conductive plates 41 are provided with a first conductive plate 42 and a second conductive plate 43, which are also spaced apart to avoid interference with each other. The first conductive plate 42 and the second conductive plate 43 can be respectively connected to two conducting circuits.

[0058] The circuit breaker assembly 100 is also provided with two cutting devices, which are respectively a first cutting device 2 and a second cutting device 3. The first cutting device 2 and the second cutting device 3 are installed in the insulating shell 1 and are spaced apart in the insulating shell 1. The first cutting device 2 is arranged corresponding to the first conductive plate 42 and can act towards the first conductive plate 42 to break the first conductive plate 42, thereby cutting off the circuit in which the first conductive plate 42 is located. The second cutting device 3 is arranged corresponding to the second conductive plate 43 and can act towards the second conductive plate 43 to break the second conductive plate 43, thereby cutting off the circuit in which the second conductive plate 43 is located. The cutting devices can protect the conducting circuit and the electrical components in the conducting circuit.

[0059] The two cutting devices and the plurality of conductive plates 41 are integrally installed in the insulating shell 1, thereby reducing the space occupied by the circuit breaker assembly 100, and the structure is simple, the integration degree is high, the setting cost can be reduced, the light weight can be improved, and the insulating shell 1 is provided, the structural stability during the operation of the circuit breaker assembly 100 and after the operation is ensured, and the use safety of the circuit breaker assembly 100 is improved. In actual setting, the first cutting device 2 and the second cutting device 3 can be set to synchronous operation, or can be set to separate operation, that is, the first cutting device 2 and the second cutting device 3 can be set to simultaneously cut off the first conductive plate 42 and the second conductive plate 43, or the second cutting device 3 is not operated when the first cutting device 2 cuts off the first conductive plate 42, or the first cutting device is not operated when the second cutting device 3 cuts off the second conductive plate 43. The use flexibility is improved, and the number of corresponding cutting devices can be set according to the actual circuit number, that is, the cutting device is not limited to two.

[0060] According to the circuit breaker assembly 100 of the embodiment of the present application, the plurality of conductive plates 41 and the two cutting devices are integrated in the insulating shell 1, thereby reducing the space occupied by the circuit breaker assembly 100, and the structure is simple, the integration degree is high, the setting cost can be reduced, the light weight can be improved, and the insulating shell 1 is provided, the structural stability during the operation of the circuit breaker assembly 100 and after the operation is ensured, and the use safety of the circuit breaker assembly 100 is improved. The use effect is better, and the application range is wider.

[0061] In some embodiments, the insulating shell 1 is a one-piece structure, which can further improve the integration of the circuit breaker assembly 100, that is, the insulating shell 1 can be a one-piece part made by injection molding. Injection molding can improve the production speed of the insulating shell 1, thereby improving the production efficiency of the insulating shell 1. The insulating shell 1 is arranged at the outermost side of the circuit breaker assembly 100, which can provide support and protection for the internal components of the circuit breaker assembly 100. The one-piece structure of the insulating shell 1 can improve the structural strength of the insulating shell 1, ensure the separation of the conductive plates 41 inside the insulating shell 1 from the outside, and improve the use reliability.

[0062] In some embodiments, the insulating shell 1 includes a middle baffle 11 arranged between the first conductive plate 42 and the second conductive plate 43, the first cutting device 2 is configured to apply a force to the first conductive plate 42 towards the middle baffle 11 to break the first conductive plate 42, and the second cutting device 3 is configured to apply a force to the second conductive plate 43 towards the middle baffle 11 to break the second conductive plate 43.

[0063] Specifically, the plurality of conductive plates 41 and the two cutting devices are arranged in the insulating housing 1, and the intermediate baffle 11 is arranged in the insulating housing 1, and the intermediate baffle 11 can be arranged in the middle of the mounting space of the insulating housing 1, thereby dividing the mounting space of the insulating housing 1 into two parts, as shown in FIGS. 3 and 8, the first conductive plate 42 and the second conductive plate 43 are arranged in the insulating housing 1 with a spacing, and the first conductive plate 42 and the second conductive plate 43 can be arranged in the two mounting spaces respectively, that is, the intermediate baffle 11 can be arranged between the first conductive plate 42 and the second conductive plate 43.

[0064] In addition, the first cutting device 2 is arranged on the side of the first conductive plate 42 away from the intermediate baffle 11, and the first cutting device 2 can apply a cutting force to the first conductive plate 42 towards the intermediate baffle 11 to cut the first conductive plate 42, and the second cutting device 3 is arranged on the side of the second conductive plate 43 away from the intermediate baffle 11, and the second cutting device 3 can apply a cutting force to the second conductive plate 43 towards the intermediate baffle 11 to cut the second conductive plate 43, and the intermediate baffle 11 is arranged between the first conductive plate 42 and the second conductive plate 43, thereby improving the structural strength of the part of the insulating housing 1 between the two cutting devices, to ensure the structural stability during the operation of the circuit breaker assembly 100 and after the operation, thereby improving the safety of the circuit breaker assembly 100.

[0065] It can be understood that the two cutting devices are independent of each other, and each cutting device acts on the corresponding conductive plate 41, so that only one conductive plate 41 needs to be cut, and only the corresponding cutting device can be operated, and the cutting device corresponding to the other conductive plate 41 can be well isolated from the cutting device that has been operated by the intermediate baffle 11, thereby avoiding interference between the two cutting devices during the cutting operation, that is, avoiding the cutting device that operates first from impacting both conductive plates 41, thereby effectively separating the two cutting devices and ensuring the safety of the structure, and achieving accurate independent control of the two conductive plates 41.

[0066] When the first cutting device 2 and the second cutting device 3 work at the same time, the first conductive plate 42 and the second conductive plate 43 can be cut at the same time, and at this time, the intermediate baffle 11 can isolate the mutual interference and arc between the cut parts of the first conductive plate 42 and the second conductive plate 43, thereby ensuring the safety of the structure.

[0067] In some embodiments, the first conductive plate 42 is provided with a first weak part 421 and a second weak part 422, and when the first cutting device 2 impacts the first conductive plate 42, the first weak part 421 is broken, and part of the first conductive plate 42 is flipped towards the intermediate baffle 11 around the second weak part 422.

[0068] Specifically, as shown in FIG. 3, the first conductive plate 42 is arranged in the insulating shell 1, and the first conductive plate 42 is arranged on one side of the intermediate baffle 11. The first conductive plate 42 is correspondingly provided with the first cutting device 2. The first cutting device 2 can apply a force to the first conductive plate 42 to break the first conductive plate 42. The first conductive plate 42 is provided with a first weak part 421 and a second weak part 422. The first weak part 421 and the second weak part 422 can be arranged as a weakened groove or other structure that can weaken the local structural strength of the conductive plate 41. The structural strength of the first weak part 421 and the second weak part 422 is lower than that of the rest of the first conductive plate 42. The structural strength of the first weak part 421 can be lower than that of the second weak part 422, that is, the thickness of the first weak part 421 can be less than that of the second weak part 422.

[0069] In addition, when the first cutting device 2 applies an impact force to the first conductive plate 42, the first weak part 421 can be broken due to its low structural strength. The structural strength of the second weak part 422 is greater than that of the first weak part 421 and less than that of the other parts of the first conductive plate 42. Thus, the part of the first conductive plate 42 around the second weak part 422 can be flipped towards the intermediate baffle 11, and the first cutting device 2 can break the first conductive plate 42. The breaking reliability of the first conductive plate 42 can be ensured. After the first conductive plate 42 is broken, it can be flipped towards the intermediate baffle 11, thereby avoiding affecting the other conductive plates 41 and ensuring the use reliability of the conductive plates 41.

[0070] In some embodiments, the insulating shell 1 further comprises a first rib plate 111 arranged on one side of the intermediate baffle 11 close to the first conductive plate 42. The width of the first rib plate 111 close to the first weak part 421 is greater than the width of the first rib plate 111 close to the second weak part 422.

[0071] Specifically, as shown in FIG. 4 and FIG. 8, the insulating shell 1 further comprises a first rib plate 111, which can be arranged in a plate structure. The first rib plate 111 is arranged on one side of the insulating shell 1 close to the first cutting device 2, that is, the first rib plate 111 is arranged on one side of the intermediate baffle 11 close to the first conductive plate 42. The first rib plate 111 is connected to the intermediate baffle 11, and can be connected to the intermediate baffle 11 by a connecting member or integrated molding. After the first cutting device 2 breaks the first conductive plate 42, part of the first conductive plate 42 can move towards the first rib plate 111. The intermediate baffle 11 is provided with the first rib plate 111, which can improve the structural strength of the intermediate baffle 11 and the overall structural strength of the insulating shell 1.

[0072] In addition, when the first cutting device 2 impacts the first conductive plate 42, the first weak portion 421 can be broken, and part of the first conductive plate 42 can be flipped around the second weak portion 422 towards the first rib plate 111, so that the first weak portion 421 of the first conductive plate 42 can be close to the first rib plate 111. The width of the first rib plate 111 close to the first weak portion 421 is greater than the width of the first rib plate 111 close to the second weak portion 422, that is, the width of the first rib plate 111 close to the first weak portion 421 is a, the width of the first rib plate 111 close to the second weak portion 422 is b, and a > b. The structural strength of the first rib plate 111 close to the first weak portion 421 can be improved, and the first rib plate 111 close to the first weak portion 421 can be prevented from being broken, thereby ensuring the reliability of the first rib plate 111.

[0073] In some embodiments, the thickness of the intermediate baffle plate 11 close to the first weak portion 421 is greater than the thickness of the intermediate baffle plate 11 close to the second weak portion 422. When the first cutting device 2 impacts the first conductive plate 42, the first weak portion 421 can be broken, and part of the first conductive plate 42 can be flipped around the second weak portion 422 towards the intermediate baffle plate 11, so that the first weak portion 421 of the first conductive plate 42 can be close to the intermediate baffle plate 11. The width of the intermediate baffle plate 11 close to the first weak portion 421 is greater than the width of the intermediate baffle plate 11 close to the second weak portion 422, which can improve the structural strength of the intermediate baffle plate 11 close to the first weak portion 421, and prevent the intermediate baffle plate 11 close to the first weak portion 421 from being broken, thereby ensuring the reliability of the intermediate baffle plate 11.

[0074] In some embodiments, the first rib plate 111 is integrally formed on one side of the intermediate baffle plate 11 close to the first conductive plate 42, and the width of the first rib plate 111 gradually decreases along the distribution direction of the first weak portion 421 and the second weak portion 422.

[0075] Specifically, as shown in FIGS. 4 and 8, the insulating shell 1 further comprises a first rib plate 111, which is arranged on one side of the intermediate baffle plate 11 close to the first conductive plate 42, and the first rib plate 111 is connected to the intermediate baffle plate 11 by integral molding. Integrally forming the first rib plate 111 and the intermediate baffle plate 11 can improve the connection reliability of the first rib plate 111 and the intermediate baffle plate 11. After the first cutting device 2 breaks the first conductive plate 42, part of the first conductive plate 42 can move towards the first rib plate 111. The intermediate baffle plate 11 is provided with the first rib plate 111, and the first rib plate 111 can be a triangular plate. The triangle has stability, which can ensure the structural strength of the intermediate baffle plate 11, thereby improving the overall structural strength of the insulating shell 1.

[0076] In addition, when the first cutting device 2 impacts the first conductive plate 42, the first weak portion 421 can be broken, and a portion of the first conductive plate 42 can be flipped around the second weak portion 422 towards the first rib plate 111, so that the first weak portion 421 of the first conductive plate 42 can be close to the first rib plate 111. The width of the first rib plate 111 close to the first weak portion 421 is set to gradually decrease along the distribution direction of the first weak portion 421 and the second weak portion 422, that is, the width of the first rib plate 111 close to the first weak portion 421 is set to be greater than the width of the first rib plate 111 close to the second weak portion 422, so that the structural strength of the first rib plate 111 close to the first weak portion 421 can be improved, to avoid the first rib plate 111 from being broken after being close to the first weak portion 421, and to ensure the use reliability of the first rib plate 111.

[0077] In some embodiments, the second conductive plate 43 is provided with a third weak portion 431 and a fourth weak portion 432. When the second cutting device 3 impacts the second conductive plate 43, the third weak portion 431 is broken, and a portion of the second conductive plate 43 is flipped around the fourth weak portion 432 towards the middle baffle 11.

[0078] Specifically, as shown in FIG. 3, the second conductive plate 43 is arranged in the insulating shell 1, and the second conductive plate 43 is arranged on one side of the middle baffle 11. The second cutting device 3 is arranged corresponding to the second conductive plate 43, and can apply a force to the second conductive plate 43 to break the second conductive plate 43. The second conductive plate 43 is provided with a third weak portion 431 and a fourth weak portion 432. The third weak portion 431 and the fourth weak portion 432 can be arranged as weakened grooves, and the structural strength of the third weak portion 431 and the fourth weak portion 432 is lower than that of the rest of the second conductive plate 43. The structural strength of the third weak portion 431 is lower than that of the fourth weak portion 432, that is, the thickness of the third weak portion 431 is less than that of the fourth weak portion 432.

[0079] In addition, when the second cutting device 3 applies an impact force to the second conductive plate 43, the third weak portion 431 can be broken due to its low structural strength. The structural strength of the fourth weak portion 432 is greater than that of the third weak portion 431 and less than that of the rest of the second conductive plate 43, so that a portion of the second conductive plate 43 can be flipped around the fourth weak portion 432 towards the middle baffle 11 without breaking the fourth weak portion 432. Thus, the second cutting device 3 can break the second conductive plate 43, and the broken second conductive plate 43 can be flipped towards the middle baffle 11, so that the second conductive plate 43 does not affect the rest of the conductive plates 41, and the use reliability of the conductive plates 41 is ensured.

[0080] In some embodiments, the insulating shell 1 further comprises a second rib plate 112, which is arranged on one side of the intermediate baffle 11 close to the second conductive plate 43. The width of the second rib plate 112 close to the third weak part 431 is greater than the width of the second rib plate 112 close to the fourth weak part 432.

[0081] Specifically, as shown in FIG. 4 and FIG. 8, the insulating shell 1 is further provided with a second rib plate 112, which can be provided in a plate structure. The second rib plate 112 is arranged on one side of the insulating shell 1 close to the second cutting device 3, i.e. the second rib plate 112 is arranged on one side of the intermediate baffle 11 close to the second conductive plate 43. The second rib plate 112 is connected with the intermediate baffle 11, and can be connected with the intermediate baffle 11 by a connecting member or integrated forming, etc. When the second cutting device 3 impacts the second conductive plate 43, part of the second conductive plate 43 can move towards the second rib plate 112. The intermediate baffle 11 provided with the second rib plate 112 can improve the structural strength of the intermediate baffle 11, and thus can improve the overall structural strength of the insulating shell 1.

[0082] In addition, when the second cutting device 3 impacts the second conductive plate 43, the third weak part 431 can be broken, and part of the second conductive plate 43 can be flipped around the fourth weak part 432 towards the second rib plate 112, so that the third weak part 431 of the second conductive plate 43 can be close to the second rib plate 112. The width of the second rib plate 112 close to the third weak part 431 is set to be greater than the width of the second rib plate 112 close to the fourth weak part 432, i.e. the width of the second rib plate 112 close to the third weak part 431 is set to be c, the width of the second rib plate 112 close to the fourth weak part 432 is set to be d, and c>d is satisfied. The structural strength of the second rib plate 112 close to the third weak part 431 can be improved, so that the second rib plate 112 close to the third weak part 431 can be prevented from being broken, and the use reliability of the second rib plate 112 can be ensured.

[0083] In some embodiments, the thickness of the intermediate baffle plate 11 near the third weak portion 431 is greater than the thickness of the intermediate baffle plate 11 near the fourth weak portion 432, when the second cutting device 3 impacts the second conductive plate 43, the third weak portion 431 can be broken, and part of the second conductive plate 43 can be flipped around the fourth weak portion 432 towards the intermediate baffle plate 11, so that the third weak portion 431 of the second conductive plate 43 can be close to the intermediate baffle plate 11. The width of the intermediate baffle plate 11 near the third weak portion 431 is greater than the width of the intermediate baffle plate 11 near the fourth weak portion 432, which can improve the structural strength of the intermediate baffle plate 11 near the third weak portion 431, and thus avoid the intermediate baffle plate 11 from being broken after the third weak portion 431 is close to the intermediate baffle plate 11, thereby ensuring the reliability of the intermediate baffle plate 11.

[0084] In some embodiments, the second rib plate 112 is integrally formed on one side of the intermediate baffle plate 11 near the second conductive plate 43, and the width of the second rib plate 112 gradually decreases along the distribution direction of the third weak portion 431 and the fourth weak portion 432.

[0085] Specifically, as shown in FIGS. 4 and 8, the insulating shell 1 is also provided with a second rib plate 112, which is arranged on one side of the intermediate baffle plate 11 near the second conductive plate 43, and the second rib plate 112 is connected with the intermediate baffle plate 11 by integral molding. Integrally forming the second rib plate 112 with the intermediate baffle plate 11 can improve the connection reliability of the second rib plate 112 and the intermediate baffle plate 11. After the second cutting device 3 impacts and breaks the second conductive plate 43, part of the second conductive plate 43 can move towards the second rib plate 112. The intermediate baffle plate 11 is provided with the second rib plate 112, and the second rib plate 112 can be arranged as a triangular plate. The triangle has stability, which can ensure the structural strength of the intermediate baffle plate 11, thereby improving the overall structural strength of the insulating shell 1.

[0086] In addition, when the second cutting device 3 impacts the second conductive plate 43, the third weak portion 431 can be broken, and part of the second conductive plate 43 can be flipped around the fourth weak portion 432 towards the second rib plate 112, so that the third weak portion 431 of the second conductive plate 43 can be close to the second rib plate 112. The width of the second rib plate 112 gradually decreases along the distribution direction of the third weak portion 431 and the fourth weak portion 432, that is, the width of the second rib plate 112 near the third weak portion 431 is greater than the width of the second rib plate 112 near the fourth weak portion 432, thereby improving the structural strength of the second rib plate 112 near the third weak portion 431, avoiding the second rib plate 112 from being broken after the third weak portion 431 is close to the second rib plate 112, and ensuring the reliability of the second rib plate 112.

[0087] In some embodiments, the plurality of conductive plates 41 further comprises a third conductive plate 44, the third conductive plate 44 is arranged on the side of the first conductive plate 42 away from the intermediate baffle 11, the first cutting device 2 is used to simultaneously punch off the first conductive plate 42 and the third conductive plate 44 in opposite directions, and the insulating shell 1 further comprises a first partition plate 12 arranged at one end of the insulating shell 1, the first partition plate 12 is located on the side of the third conductive plate 44 away from the intermediate baffle 11.

[0088] Specifically, as shown in FIG. 3, the plurality of conductive plates 41 further comprises a third conductive plate 44, the third conductive plate 44 and the first conductive plate 42 are arranged on the same side of the intermediate baffle 11, and the first conductive plate 42 and the third conductive plate 44 are arranged at intervals, and the third conductive plate 44 is located on the side of the first conductive plate 42 away from the intermediate baffle 11, the first cutting device 2 is arranged corresponding to the first conductive plate 42 and the third conductive plate 44, the first cutting device 2 is located between the first conductive plate 42 and the third conductive plate 44, and the first cutting device 2 can simultaneously act in opposite directions to simultaneously punch off the first conductive plate 42 and the third conductive plate 44, thereby cutting off the loop in which the first conductive plate 42 and the third conductive plate 44 are located, and protecting the conductive loop and the electrical components in the conductive loop, thereby improving the safety in use.

[0089] In addition, the insulating shell 1 is further provided with a first partition plate 12, the first partition plate 12 is located at one end of the insulating shell 1 and can also be integrally formed with the end of the insulating shell 1, the first partition plate 12 is arranged on the side of the third conductive plate 44 away from the intermediate baffle 11, and the first partition plate 12 arranged at the end of the insulating shell 1 can improve the structural strength of the end of the insulating shell 1, thereby ensuring the use reliability of the insulating shell 1, and the third conductive plate 44 is provided with a fifth weak portion 441 and a sixth weak portion 442, when the first cutting device 2 impacts the third conductive plate 44, the fifth weak portion 441 is broken, and part of the third conductive plate 44 is flipped around the sixth weak portion 442 towards the first partition plate 12, the side of the third conductive plate 44 away from the first cutting device 2 is provided with the first partition plate 12, which can avoid the third conductive plate 44 from contacting the outside after being punched off, thereby improving the use reliability and ensuring the safety in use.

[0090] In some embodiments, the plurality of conductive plates 41 further comprises a third conductive plate 44, the third conductive plate 44 is arranged on the side of the first conductive plate 42 away from the intermediate baffle 11, the first cutting device 2 is used to simultaneously punch off the first conductive plate 42 and the third conductive plate 44 in opposite directions, and the insulating shell 1 further comprises a first partition plate 12 arranged at one end of the insulating shell 1, the first partition plate 12 is located on the side of the third conductive plate 44 away from the intermediate baffle 11.

[0091] Specifically, as shown in FIG. 3, the plurality of conductive plates 41 further comprises a fourth conductive plate 45, the fourth conductive plate 45 and the second conductive plate 43 are arranged on the same side of the intermediate baffle 11, and the second conductive plate 43 and the fourth conductive plate 45 are arranged at intervals, and the fourth conductive plate 45 is located on the side of the second conductive plate 43 away from the intermediate baffle 11, the second cutting device 3 is arranged corresponding to the second conductive plate 43 and the fourth conductive plate 45, the second cutting device 3 is located between the second conductive plate 43 and the fourth conductive plate 45, and the second cutting device 3 can simultaneously act towards the opposite direction to simultaneously punch off the second conductive plate 43 and the fourth conductive plate 45, thereby cutting off the loop in which the second conductive plate 43 and the fourth conductive plate 45 are located, and protecting the conductive loop and the electrical components in the conductive loop, thereby improving the safety in use.

[0092] In addition, the insulating shell 1 is further provided with a second partition plate 13, the second partition plate 13 is located at the other end of the insulating shell 1, and can also be integrally formed with the end of the insulating shell 1, the second partition plate 13 is arranged on the side of the fourth conductive plate 45 away from the intermediate baffle 11, and the second partition plate 13 arranged at the end of the insulating shell 1 can improve the structural strength of the end of the insulating shell 1, and ensure the use reliability of the insulating shell 1, and the fourth conductive plate 45 is provided with a seventh weak portion 451 and an eighth weak portion 452, when the second cutting device 3 impacts the fourth conductive plate 45, the seventh weak portion 451 is broken, and part of the fourth conductive plate 45 is flipped around the eighth weak portion 452 towards the second partition plate 13, the second partition plate 13 arranged on the side of the fourth conductive plate 45 away from the second cutting device 3 can avoid the fourth conductive plate 45 from being in contact with the outside after being punched off, thereby improving the use reliability and ensuring the safety in use.

[0093] In some embodiments, the insulating shell 1 further comprises a reinforcing beam 14, the reinforcing beam 14 extends along the distribution direction of the first conductive plate 42, the intermediate baffle 11 and the second conductive plate 43, and the first conductive plate 42, the intermediate baffle 11 and the second conductive plate 43 are connected with the reinforcing beam 14 respectively.

[0094] Specifically, the first partition plate 12 and the second partition plate 13 are arranged at both ends of the insulating shell 1, and the intermediate baffle 11 is arranged between the first partition plate 12 and the second partition plate 13 to strengthen the structural strength of the insulating shell 1, and as shown in FIG. 4, the insulating shell 1 is further provided with a reinforcing beam 14, the reinforcing beam 14 is arranged to extend along the distribution direction of the first conductive plate 42, the intermediate baffle 11 and the second conductive plate 43, and the reinforcing beam 14 can extend from the first partition plate 12 to the second partition plate 13, thereby connecting the first partition plate 12, the intermediate baffle 11 and the second conductive plate 43 through the reinforcing beam 14.

[0095] In addition, one end of the first partition plate 12, the intermediate baffle 11 and the second partition plate 13 can be connected with the reinforcing beam 14, so that the impact force borne by the first partition plate 12, the intermediate baffle 11 and the second partition plate 13 can be conducted towards the reinforcing beam 14, and the impact force can weaken the effect during the conduction, thereby improving the structural strength of the first partition plate 12, the intermediate baffle 11 and the second partition plate 13, and the reinforcing beam 14 is arranged on the insulating shell 1, which can also strengthen the structural strength of the insulating shell 1 in the distribution direction of the first conductive plate 42, the intermediate baffle 11 and the second conductive plate 43, and improve the use safety of the circuit breaker assembly 100.

[0096] In some embodiments, the insulating shell 1 further comprises a third rib plate arranged between the first partition plate 12 and the reinforcing beam 14, and the width of the third rib plate close to the fifth weak part 441 is greater than the width of the third rib plate close to the sixth weak part 442.

[0097] Specifically, the insulating shell 1 is further provided with a third rib plate, which can be provided in a plate structure, and the third rib plate is arranged between the first partition plate 12 and the reinforcing beam 14 and located on the side of the insulating shell 1 close to the first cutting device 2, and the third rib plate can be connected with the first partition plate 12 and the reinforcing beam 14 by a connecting piece or one-piece forming, etc. When the first cutting device 2 impacts and cuts the third conductive plate 44, part of the third conductive plate 44 can move towards the third rib plate, and the third rib plate arranged between the first partition plate 12 and the reinforcing beam 14 can improve the structural strength between the first partition plate 12 and the reinforcing beam 14, thereby improving the overall structural strength of the insulating shell 1.

[0098] In addition, when the first cutting device 2 impacts the third conductive plate 44, the fifth weak part 441 can be broken, and part of the third conductive plate 44 can be flipped around the sixth weak part 442 towards the third rib plate, thereby making the fifth weak part 441 of the third conductive plate 44 close to the third rib plate, and the width of the third rib plate close to the fifth weak part 441 is set to be greater than the width of the third rib plate close to the sixth weak part 442, which can improve the structural strength of the third rib plate close to the fifth weak part 441, thereby avoiding the third rib plate from being broken after being close to the fifth weak part 441, and ensuring the use reliability of the third rib plate.

[0099] In other embodiments, the insulating shell 1 further comprises a fourth rib plate arranged between the second partition plate 13 and the reinforcing beam 14, and the width of the fourth rib plate close to the seventh weak part 451 is greater than the width of the third rib plate close to the eighth weak part 452.

[0100] Specifically, the insulating shell 1 is further provided with a fourth rib plate, which can be provided in a plate structure, and is arranged between the second partition plate 13 and the reinforcing beam 14, and located at the side of the insulating shell 1 close to the second cutting device 3. The fourth rib plate can be connected with the second partition plate 13 and the reinforcing beam 14 by connecting pieces or one-piece forming, etc. After the second cutting device 3 impacts and cuts off the third conductive plate 44, part of the third conductive plate 44 can move towards the fourth rib plate. The fourth rib plate arranged between the second partition plate 13 and the reinforcing beam 14 can improve the structural strength between the second partition plate 13 and the reinforcing beam 14, and further improve the overall structural strength of the insulating shell 1.

[0101] In addition, when the second cutting device 3 impacts the third conductive plate 44, the seventh weak part 451 can be broken, and part of the third conductive plate 44 can be flipped around the eighth weak part 452 towards the fourth rib plate, so that the seventh weak part 451 of the third conductive plate 44 can be close to the fourth rib plate. The width of the fourth rib plate close to the seventh weak part 451 is set to be greater than the width of the fourth rib plate close to the eighth weak part 452, which can improve the structural strength of the fourth rib plate close to the seventh weak part 451, and further avoid the fourth rib plate from being broken after being close to the seventh weak part 451, and ensure the use reliability of the fourth rib plate.

[0102] Meanwhile, the first conductive plate 42, the intermediate baffle 11 and the second conductive plate 43 are connected with the reinforcing beam 14 respectively, and part of the first conductive plate 42 and the second conductive plate 43 can be arranged in the reinforcing beam 14, so as to limit the positions of the first conductive plate 42 and the second conductive plate 43 relative to the insulating shell 1, and ensure the installation reliability. In actual arrangement, the first conductive plate 42 and the second conductive plate 43 can be detachable relative to the reinforcing beam 14.

[0103] In some embodiments, the reinforcing beam 14 is a plurality of reinforcing beams, and the plurality of reinforcing beams 14 are spaced apart.

[0104] Specifically, the insulating shell 1 is provided with the reinforcing beam 14, which can be connected to the first partition plate 12, the intermediate baffle 11 and the second partition plate 13 respectively, so as to improve the structural strength of the insulating shell 1. In this embodiment, as shown in FIG. 1, the reinforcing beam 14 is provided in two, and the plurality of reinforcing beams 14 are spaced apart, so that the first partition plate 12, the intermediate baffle 11 and the second partition plate 13 can be connected to the plurality of reinforcing beams 14. The impact force borne by the first partition plate 12, the intermediate baffle 11 and the second partition plate 13 can be conducted to the plurality of reinforcing beams 14 respectively. The impact force can weaken the effect during the conduction process, so as to improve the structural strength of the first partition plate 12, the intermediate baffle 11 and the second partition plate 13. The insulating shell 1 provided with the plurality of reinforcing beams 14 can also strengthen the structural strength of the insulating shell 1 at multiple places, and improve the use safety of the circuit breaker assembly 100.

[0105] In some embodiments, the first conductive plate 42 is formed with a first accommodating space 423 at the back side of the position directly opposite to the first cutting device 2, and the first conductive plate 42 is adapted to deform towards the first accommodating space 423 after being punched off.

[0106] Specifically, the first conductive plate 42 is arranged at one side of the intermediate baffle 11, and the first cutting device 2 is arranged at the side of the first conductive plate 42 away from the intermediate baffle 11, i.e. the first conductive plate 42 is arranged between the first cutting device 2 and the intermediate baffle 11, and when the first cutting device 2 punches off the first conductive plate 42, part of the first conductive plate 42 can move towards the intermediate baffle 11, and as shown in FIG. 3, the first conductive plate 42 is formed with a first accommodating space 423 at the back side of the position directly opposite to the first cutting device 2, and the first conductive plate 42 is adapted to deform towards the first accommodating space 423 after being punched off, so that the part of the first conductive plate 42 punched off can be buffered in the first accommodating space 423 after being punched off, reducing the impact energy, and the part of the first conductive plate 42 punched off can be prevented from acting on the intermediate baffle 11, ensuring the use reliability and improving the use safety.

[0107] In some embodiments, the first conductive plate 42 is formed with a first accommodating space 423 at the back side of the position directly opposite to the first cutting device 2, and the first conductive plate 42 is adapted to deform towards the first accommodating space 423 after being punched off.

[0108] Specifically, the first conductive plate 42 is arranged at one side of the intermediate baffle 11, and the first cutting device 2 is arranged at the side of the first conductive plate 42 away from the intermediate baffle 11, i.e. the first conductive plate 42 is arranged between the first cutting device 2 and the intermediate baffle 11, and when the first cutting device 2 punches off the first conductive plate 42, part of the first conductive plate 42 can move towards the intermediate baffle 11, and as shown in FIG. 3, the first conductive plate 42 is formed with a first accommodating space 423 at the back side of the position directly opposite to the first cutting device 2, and the first conductive plate 42 is adapted to deform towards the first accommodating space 423 after being punched off, so that the part of the first conductive plate 42 punched off can be buffered in the first accommodating space 423 after being punched off, reducing the impact energy, and the part of the first conductive plate 42 punched off can be prevented from acting on the intermediate baffle 11, ensuring the use reliability and improving the use safety.

[0109] And in actual arrangement, the third conductive plate 44 is formed with a third accommodating space 443 at the back side of the position directly opposite to the first cutting device 2, and the third conductive plate 44 is adapted to deform towards the third accommodating space 443 after being punched off, the fourth conductive plate 45 is formed with a fourth accommodating space 453 at the back side of the position directly opposite to the second cutting device 3, and the fourth conductive plate 45 is adapted to deform towards the fourth accommodating space 453 after being punched off, ensuring the use reliability and improving the use safety.

[0110] In some embodiments, the first conductive plate 42 and / or the second conductive plate 43 is provided with an arc-extinguishing fuse 15 at the breaking position, that is, the arc-extinguishing fuse 15 can be provided only at the breaking position of the first conductive plate 42, or only at the breaking position of the second conductive plate 43, or at the breaking positions of the first conductive plate 42 and the second conductive plate 43. The arc-extinguishing fuse 15 can be a fuse, and the two ends of the arc-extinguishing fuse 15 can be fixed on the first conductive section 411 and the second conductive section 413, respectively, that is, the arc-extinguishing fuse 15 can be connected in parallel to the weak section 412 of the conductive plate 41. When the conductive plate 41 is broken, the arc generated thereby can be borne by the arc-extinguishing fuse 15, thereby extinguishing the arc of the conductive plate 41, improving the safety in use, and the arc-extinguishing fuse 15 can also be provided at the breaking positions of the third conductive plate 44 and the fourth conductive plate 45 to ensure the safety in use.

[0111] In some embodiments, the conductive plate 41 includes a first conductive section 411, a weak section 412, and a second conductive section 413 arranged in sequence in the first direction, the weak section 412 being connected between the first conductive section 411 and the second conductive section 413, and the cutting device is adapted to impact the weak section 412.

[0112] Specifically, the circuit breaker assembly 100 is provided with a plurality of conductive plates 41, two of which can be arranged on the two sides of the first cutting device 2, and two others of which can be arranged on the two sides of the second cutting device 3. The conductive plates 41 arranged on the two sides of the first cutting device 2 and the second cutting device 3 are provided with a first conductive section 411, a weak section 412, and a second conductive section 413. One end of the weak section 412 is connected to the first conductive section 411, and the other end is connected to the second conductive section 413, that is, the weak section 412 is connected between the first conductive section 411 and the second conductive section 413. The impact head 34 of the first cutting device 2 and the second cutting device 3 can impact the weak section 412, so that the weak section 412 can be separated from the first conductive section 411 or the second conductive section 413, thereby cutting off the conductive loop and ensuring the reliability in use.

[0113] In some embodiments, a first weakening groove is formed at the connection between the weak section 412 and the first conductive section 411, and the cutting device faces the first weakening groove in the second direction.

[0114] Specifically, the weakened section 412 can be configured as a moon island structure, and a first weakening groove is formed at the connection between the weakened section 412 and the first conductive section 411. The weakened section 412 is configured as a moon island structure, i.e., as shown in FIG. 3, the width of the two ends of the weakened section 412 is small, and the width of the middle part is large. The side of the weakened section 412 facing the impact head 34 is a straight edge, and the side away from the impact head 34 is an arc-shaped edge. A first weakening groove is formed at the connection between the weakened section 412 and the first conductive section 411, so that the structural strength at the first weakening groove is lower than that of the remaining part, to ensure the reliability of the fracture of the conductive plate 41.

[0115] In addition, a second weakening groove is formed at the connection between the weakened section 412 and the second conductive section 413, so that the structural strength at the second weakening groove is lower than that of the remaining part. In the present embodiment, the opening depth of the first weakening groove is greater than that of the second weakening groove, so that the structural strength at the first weakening groove is less than that at the second weakening groove. When the impact head 34 impacts the weakened section 412, the weakened section 412 can fracture at the first weakening groove and can be bent at the second weakening groove, to ensure the reliability of the fracture of the conductive plate 41.

[0116] In some embodiments, at least part of the plurality of conductive plates 41 is adapted to be connected to the motor. The circuit breaker assembly 100 is provided with two cutting devices, which can cut the corresponding conductive plate 41 to ensure the safety of the conductive loop in which the conductive plate 41 is located. At least part of the plurality of conductive plates 41 is adapted to be connected to the motor, so that when the conductive plate 41 connected to the motor is cut by the corresponding cutting device, the conductive loop in which the motor is located can be cut off, to ensure the safety of the conductive loop in which the motor is located and the motor.

[0117] In the present embodiment, when the circuit breaker assembly 100 is connected to the motor, and the motor is a three-phase alternating current motor, three conductive plates 41 located on the same side of the middle partition plate 11 can be connected to the three-phase lines of the motor. The first cutting device 2 or the second cutting device 3 can simultaneously cut off the two conductive plates 41 located on both sides thereof, to ensure the complete cutting of the alternating current loop, thereby protecting the motor and other electrical components in the alternating current loop.

[0118] In actual settings, taking the first cutting device 2 as an example, the first cutting device 2 can be provided with a mounting shell 31 and two impact heads 34, the two impact heads 34 are adapted to be oppositely impacted out from both sides of the mounting shell 31, the first cutting device 2 is located between the first conductive plate 42 and the third conductive plate 44, and the two impact heads 34 are used to correspondingly impact the first conductive plate 42 and the third conductive plate 44, as shown in FIGS. 5-6, the mounting shell 31 can be provided as an integral piece made by injection molding, the mounting shell 31 is provided at the outermost side of the first cutting device 2, can provide support and protection for the internal components of the first cutting device 2, and a mounting space can be formed in the mounting shell 31, the components of the first cutting device 2 can be mounted in the mounting space of the mounting shell 31, and the mounting shell 31 can be fixedly installed in the insulating shell 1 by a connecting piece.

[0119] In addition, the cutting device is also provided with an impact head 34, the impact head 34 is installed in the mounting shell 31, the impact head 34 is movable relative to the mounting shell 31, so that the impact head 34 can be impacted outwards relative to the mounting shell 31, and the impact head 34 of the first cutting device 2 is two, the two impact heads 34 are spaced apart and movable relative to the mounting shell 31, that is, the two impact heads 34 can be impacted outwards relative to the mounting shell 31, at least part of the first conductive plate 42 and the third conductive plate 44 extends into the insulating shell 1 and is correspondingly distributed with the two impact heads 34 of the first cutting device 2, so that the two impact heads 34 of the first cutting device 2 can impact the first conductive plate 42 and the third conductive plate 44 respectively, and the safety of the conductive loop is improved.

[0120] And the impact heads 34 of the first cutting device 2 and the second cutting device 3 are independently impacted, that is, in actual use, the first cutting device 2 and the second cutting device 3 can be controlled to simultaneously cut the corresponding conductive plate 41, or only one of them can be controlled to cut the corresponding conductive plate 41, improving the control flexibility.

[0121] At the same time, the first cutting device 2 is also provided with a charging chamber 35 and an ignition device 36, the charging chamber 35 is provided in the mounting space, the mounting shell 31 is provided as a tubular structure, and a steel pipe 32 is provided inside, thereby improving the structural strength of the first cutting device 2, the two impact heads 34 are located on both sides of the charging chamber 35, and a sealing ring 33 is provided between the charging chamber 35 and the impact head 34, the sealing ring 33 can be provided as a rubber ring, thereby sealing between the charging chamber 35 and the impact head 34, so that the explosion gas flow is generated in the sealed space, thereby ensuring that the explosion gas flow has enough impact force on the impact head 34.

[0122] In addition, the ignition device 36 is provided with a plug 361 and an ignition tube 362, the plug 361 and the ignition tube 362 are connected, the plug 361 is located outside the mounting shell 31, and the ignition tube 362 extends into the charge chamber 35. The plug 361 can accept an ignition signal, and then ignite the internal substance in the charge chamber 35 through the ignition tube 362, so that the explosion occurs in the first cut-off device 2, and the detonation products generated by the explosion can diffuse along the steel pipe 32 to push the impact head 34 outwards relative to the mounting shell 31, thereby ensuring the use reliability.

[0123] In addition, the ignition device 36 of the first cut-off device 2 and the second cut-off device 3 is independently ignited, so that the first cut-off device 2 and the second cut-off device 3 can cut off the corresponding conductive plate 41 at the same time, or only one of the first cut-off device 2 and the second cut-off device 3 can cut off the corresponding conductive plate 41, thereby improving the control flexibility.

[0124] The application also provides an electric machine controller assembly 102.

[0125] According to the electric machine controller assembly 102 provided by the application, the first conductive plate 42 is connected to the first inverter at one end and adapted to be connected to the first electric machine at the other end, the second conductive plate 43 is connected to the second inverter at one end and adapted to be connected to the second electric machine at the other end, the first cut-off device 2 is correspondingly arranged on the first conductive plate 42 connected between the first inverter and the first electric machine, and the second cut-off device 3 is correspondingly arranged on the second conductive plate 43 connected between the second inverter and the second electric machine. The first cut-off device 2 is used to cut off the first conductive plate 42 to cut off the conductive loop in which the first inverter and the first electric machine are located, and the second cut-off device 3 is used to cut off the second conductive plate 43 to cut off the conductive loop in which the second inverter and the second electric machine are located, thereby protecting the conductive loop, the first inverter, the second inverter, the first electric machine and the second electric machine, and improving the use safety.

[0126] In some embodiments of the electric machine controller assembly 102 provided by the application, the first conductive plate 42 and the third conductive plate 44 are both connected between the first inverter and the first electric machine, and the first cut-off device 2 can cut off the first conductive plate 42 and the third conductive plate 44 at the same time to completely cut off the conductive loop in which the first inverter and the first electric machine are located. Meanwhile, the second conductive plate 43 and the fourth conductive plate 45 are both connected between the second inverter and the second electric machine, and the second cut-off device 3 can cut off the second conductive plate 43 and the fourth conductive plate 45 at the same time to completely cut off the conductive loop in which the second inverter and the second electric machine are located, thereby eliminating the safety hazard and improving the use safety.

[0127] According to the motor controller assembly 102 provided by the embodiment of the present application, the plurality of conductive plates 41 and the two cutting-off devices are integrated in the insulating shell 1, so that the space occupied by the circuit breaker assembly 100 can be reduced, the structure is simple, the integration degree is high, the setting cost can be reduced, the light weight can be improved, the insulating shell 1 is arranged, the structural stability during the action process and after the action of the circuit breaker assembly 100 is ensured, the use safety of the circuit breaker assembly 100 is improved, the use effect is better, and the application range is wider.

[0128] The present application further provides a power assembly 101.

[0129] According to the power assembly 101 provided by the embodiment of the present application, as shown in FIG. 11, the power assembly 101 comprises the motor controller assembly 102 provided by any one of the above embodiments.

[0130] According to the power assembly 101 provided by the embodiment of the present application, the plurality of conductive plates 41 and the two cutting-off devices are integrated in the insulating shell 1, so that the space occupied by the circuit breaker assembly 100 can be reduced, the structure is simple, the integration degree is high, the setting cost can be reduced, the light weight can be improved, the insulating shell 1 is arranged, the structural stability during the action process and after the action of the circuit breaker assembly 100 is ensured, the use safety of the circuit breaker assembly 100 is improved, the use effect is better, and the application range is wider.

[0131] The present application further provides a vehicle 1000.

[0132] According to the vehicle 1000 provided by the embodiment of the present application, as shown in FIG. 10, the vehicle 1000 comprises the circuit breaker assembly 100 provided by any one of the above embodiments or the motor controller assembly 102 provided by the above embodiment.

[0133] According to the vehicle 1000 provided by the embodiment of the present application, the plurality of conductive plates 41 and the two cutting-off devices are integrated in the insulating shell 1, so that the space occupied by the circuit breaker assembly 100 can be reduced, the structure is simple, the integration degree is high, the setting cost can be reduced, the light weight can be improved, the insulating shell 1 is arranged, the structural stability during the action process and after the action of the circuit breaker assembly 100 is ensured, the use safety of the circuit breaker assembly 100 is improved, the use effect is better, and the application range is wider.

[0134] In the description of the application, reference has been made to descriptive terms such as "one embodiment", "some embodiments", "an embodiment", "example", "specific example" or "some examples" etc. It is emphasized that each of these terms refers to a specific feature, structure, material or characteristic described in connection with a particular embodiment or example. The descriptive terms are not necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0135] While embodiments of the application have been shown and described, it is to be understood that the application is not limited to the details of the embodiments described, since the scope of the application is defined with respect to the appended claims.

Claims

1. A circuit breaker assembly (100), wherein, The application relates to an insulation shell (1), a plurality of conductive plates (41) arranged in the insulation shell (1), a first cutting device (2) arranged in the insulation shell (1) and configured to cut the first conductive plate (42), and a second cutting device (3) arranged in the insulation shell (1) and configured to cut the second conductive plate (43). The insulation shell (1) is an integral structure. The insulation shell (1) comprises an intermediate baffle (11) arranged between the first conductive plate (42) and the second conductive plate (43), the first cutting device (2) is configured to apply a force to the first conductive plate (42) towards the intermediate baffle (11) to break the first conductive plate (42), and the second cutting device (3) is configured to apply a force to the second conductive plate (43) towards the intermediate baffle (11) to break the second conductive plate (43). The first conductive plate (42) is provided with a first weak part (421) and a second weak part (422), when the first cutting device (2) impacts the first conductive plate (42), the first weak part (421) is broken, and part of the first conductive plate (42) is flipped towards the intermediate baffle (11) around the second weak part (422).

2. The circuit breaker assembly (100) of claim 1, wherein, The insulation shell (1) further comprises a first rib plate (111) arranged on the side of the intermediate baffle (11) close to the first conductive plate (42), the width of the first rib plate (111) close to the first weak part (421) is greater than the width of the first rib plate (111) close to the second weak part (422).

3. The circuit breaker assembly (100) of claim 1 or 2, wherein, The thickness of the intermediate baffle (11) close to the first weak part (421) is greater than the thickness of the intermediate baffle (11) close to the second weak part (422).

4. The circuit breaker assembly (100) of claim 3, wherein, The first rib plate (111) is integrally formed on the side of the intermediate baffle (11) close to the first conductive plate (42), and the width of the first rib plate (111) gradually decreases along the distribution direction of the first weak part (421) and the second weak part (422).

5. The circuit breaker assembly (100) of claim 4, wherein, The second conductive plate (43) is provided with a third weak part (431) and a fourth weak part (432), when the second cutting device (3) impacts the second conductive plate (43), the third weak part (431) is broken, and part of the second conductive plate (43) is flipped towards the intermediate baffle (11) around the fourth weak part (432).

6. The circuit breaker assembly (100) of claim 4 or 5, wherein, ​ 7. The circuit breaker assembly (100) of claim 5 or 6, wherein, ​ 8. The circuit breaker assembly (100) of any of claims 3-7, wherein, ​ 9. The circuit breaker assembly (100) of claim 8, wherein, The insulating shell (1) further comprises a second rib plate (112) arranged on the side of the intermediate baffle (11) close to the second conductive plate (43), and the width of the second rib plate (112) close to the third weak part (431) is greater than the width of the second rib plate (112) close to the fourth weak part (432).

10. The circuit breaker assembly (100) of claim 8 or 9, wherein, The thickness of the intermediate baffle (11) close to the third weak part (431) is greater than the thickness of the intermediate baffle (11) close to the fourth weak part (432).

11. The circuit breaker assembly (100) of any of claims 3-10, wherein, The plurality of conductive plates (41) further comprises a third conductive plate (44) arranged on the side of the first conductive plate (42) away from the intermediate baffle (11), and the first cutting device (2) is used to simultaneously punch off the first conductive plate (42) and the third conductive plate (44) in opposite directions, and the insulating shell (1) further comprises a first partition plate (12) arranged at one end of the insulating shell (1), and the first partition plate (12) is located on the side of the third conductive plate (44) away from the intermediate baffle (11). The plurality of conductive plates (41) further comprises a fourth conductive plate (45) arranged on the side of the second conductive plate (43) away from the intermediate baffle (11), and the second cutting device (3) is used to simultaneously punch off the second conductive plate (43) and the fourth conductive plate (45) in opposite directions, and the insulating shell (1) further comprises a second partition plate (13) arranged at the other end of the insulating shell (1), and the second partition plate (13) is located on the side of the fourth conductive plate (45) away from the intermediate baffle (11).

12. The circuit breaker assembly (100) of any of claims 3-11, wherein, The insulating shell (1) further comprises a reinforcing beam (14) extending along the distribution direction of the first conductive plate (42), the intermediate baffle (11) and the second conductive plate (43), and the first conductive plate (42), the intermediate baffle (11) and the second conductive plate (43) are connected with the reinforcing beam (14) respectively.

13. The circuit breaker assembly (100) of claim 12, wherein, The reinforcing beam (14) is a plurality of reinforcing beams (14) distributed at intervals.

14. The circuit breaker assembly (100) of any of claims 1-13, wherein, The first conductive plate (42) is formed with a first accommodating space (423) on the back side of the position opposite to the first cutting device (2), and the first conductive plate (42) is adapted to deform towards the first accommodating space (423) after being punched off. And / or, the second conductive plate (43) is formed with a second accommodating space (433) on the back side of the position opposite to the second cutting device (3), and the second conductive plate (43) is adapted to deform towards the second accommodating space (433) after being punched off.

15. The circuit breaker assembly (100) of any one of claims 1-14, wherein, The first conductive plate (42) and / or the second conductive plate (43) is provided with an arc-extinguishing fuse device (15) at the position of being punched off.

16. The circuit breaker assembly (100) of any one of claims 1-15, wherein, The conductive plate (41) comprises a first conductive segment (411), a weak segment (412) and a second conductive segment (413) distributed in sequence along a first direction, the weak segment (412) being connected between the first conductive segment (411) and the second conductive segment (413), the cutting device being adapted to impact the weak segment (412).

17. The circuit breaker assembly (100) of claim 16, wherein, A first weakening groove is formed at the connection between the weak segment (412) and the first conductive segment (411), the cutting device being directly opposite the first weakening groove in a second direction.

18. The circuit breaker assembly (100) of any one of claims 1-17, wherein, At least part of the plurality of conductive plates (41) is adapted to connect a motor.

19. An electric machine controller assembly (102), wherein, A motor controller assembly (102) comprising a first inverter, a second inverter and the circuit breaker assembly (100) of any one of claims 1-18, one end of the first conductive plate (42) being connected to the first inverter and the other end being adapted to connect a first motor, one end of the second conductive plate (43) being connected to the second inverter and the other end being adapted to connect a second motor.

20. A powertrain (101), wherein The motor controller assembly (102) of claim 19.

21. A vehicle (1000), wherein The motor controller assembly (102) of claim 19.

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