Circuit breaking device, wiring device and vehicle

Abstract

The invention relates to a circuit breaking device, a wiring device and a vehicle, and the circuit breaking device comprises an AC conductive part which is configured to be connected with an AC circuit, and a DC conductive part which is arranged at an interval with the AC conductive part and is configured to be connected with a DC circuit; the shell is provided with a containing cavity, the alternating current conductive part and the direct current conductive part are at least partially arranged in the containing cavity, and when the electricity utilization safety problem occurs, the parts, arranged in the containing cavity, of the alternating current conductive part and the direct current conductive part are disconnected. According to the circuit breaking device, the alternating current conductive part and the direct current conductive part of the circuit breaking device are disconnected when the power utilization safety problem occurs, that is, the circuit breaking device provided by the invention can simultaneously disconnect the alternating current circuit and the direct current circuit, so that the alternating current circuit and the direct current circuit are protected, the occupied space is smaller, and the space utilization rate of the vehicle is improved.

Description

Technical Field

[0001] The present application relates to the field of circuit safety technology, and in particular to a circuit breaker device, a wiring device, and a vehicle. Background Art

[0002] In related technologies, the new energy vehicle industry has integrated core components such as the generator controller, drive motor controller, boost DC, and vehicle controller into a vehicle power domain controller to achieve space reduction, cost reduction, and increased integration. However, power domain controllers are typically protected by installing separate thermal fuses on both the DC and AC power supply circuits. Multiple fuses take up significant space, are prone to aging, have poor durability, and have a narrow operating temperature range, making them difficult to meet the aging and durability requirements of high-current circuits. Summary of the Invention

[0003] Embodiments of the present application provide a circuit breaker device, a wiring device, and a vehicle for simultaneously disconnecting an AC circuit and a DC circuit, so as to at least partially solve the above-mentioned technical problems.

[0004] In order to achieve the above-mentioned object, according to a first aspect of the present application, a circuit breaker device is provided, comprising:

[0005] an AC conductive member configured to be connected to an AC circuit;

[0006] a DC conductive member, spaced apart from the AC conductive member and configured to be connected to a DC circuit;

[0007] The shell has an accommodating cavity, in which the AC conductive member and the DC conductive member are at least partially arranged. When an electrical safety problem occurs, the parts of the AC conductive member and the DC conductive member arranged in the accommodating cavity are disconnected.

[0008] In some embodiments, the AC conductive member includes at least a first AC conductive member and a second AC conductive member, the first AC conductive member and the second AC conductive member are spaced apart and are both configured to be connected to an AC circuit.

[0009] In some embodiments, one of the first AC conductive element and the second AC conductive element is a U-phase AC conductive element, and the other is a V-phase AC conductive element.

[0010] In some embodiments, the AC conductive member has a first weak portion, which is disposed in the accommodating cavity and is configured to be disconnected when an electrical safety problem occurs.

[0011] In some embodiments, the AC conductive member further includes a first connecting portion, which is disposed at at least one end of the first weak portion and is configured to be connected to the AC circuit.

[0012] In some embodiments, in the first direction, the thickness of the first weak portion is smaller than the thickness of the first connecting portion; and / or in the second direction, the width of the first weak portion is smaller than the width of the first connecting portion.

[0013] In some embodiments, the DC conductor has a second weak portion, and the cutting mechanism is configured to cut the second weak portion to cut off the DC conductor.

[0014] In some embodiments, the DC conductive member further includes a second connecting portion, which is disposed at at least one end of the second weak portion and is configured to be connected to the DC circuit.

[0015] In some embodiments, the thickness of the second weak portion is smaller than the thickness of the second connecting portion in the direction from the cutting mechanism to the conductive member group; and / or the width of the second weak portion is smaller than the width of the second connecting portion in the width direction of the DC conductive member.

[0016] In some embodiments, the circuit breaker device further comprises:

[0017] The cutting mechanism is arranged at one end of the accommodating cavity and is spaced apart from the AC conductive member and the DC conductive member. The cutting mechanism is configured to cut off the AC conductive member and / or the DC conductive member to disconnect the AC conductive member and / or the DC conductive member.

[0018] In some embodiments, the circuit breaker device further comprises:

[0019] The first partition is disposed in the accommodating cavity and is configured to separate the cutoff mechanism from both the AC conductive component and the DC conductive component.

[0020] In some embodiments, the circuit breaker device further comprises:

[0021] The arc extinguishing medium is arranged in the accommodating cavity, and the arc extinguishing medium is configured to extinguish the arc generated after the AC conductive member and the DC conductive member are cut off.

[0022] In some embodiments, the circuit breaker device further comprises:

[0023] The second partition is arranged in the accommodating cavity and is located on the side of the AC conductive member and the DC conductive member away from the cutting mechanism. It is connected to the inner wall of the shell and enclosed with the shell to form an arc extinguishing chamber, so that the arc extinguishing medium is arranged in the arc extinguishing chamber.

[0024] In some embodiments, the circuit breaker device further comprises:

[0025] The arc extinguishing structure is provided on the AC conductive member and the DC conductive member, and is configured to guide the arc generated after the AC conductive member and the DC conductive member are cut off to the arc extinguishing medium.

[0026] In some embodiments, the arc extinguishing structure is an arc extinguishing fuse, both ends of the arc extinguishing fuse provided on the AC conductive member are connected to the first weak portion, and / or both ends of the arc extinguishing fuse provided on the DC conductive member are connected to the second weak portion.

[0027] In some embodiments, a side of the arc-extinguishing fuse remote from the AC conductor or the DC conductor is located in the arc-extinguishing medium.

[0028] In some embodiments, the housing includes a body and an end plate connected to each other, the end plate being disposed at an end of the body away from the cutting mechanism, and the circuit breaker device further includes a reinforcement configured to connect the body and the end plate.

[0029] In some embodiments, one end of the reinforcement is disposed on a side of the end plate away from the cutting mechanism, and the other end passes through the end plate and is connected to an inner end wall of the body close to the cutting mechanism.

[0030] In some embodiments, the reinforcement member is disposed at a connection between adjacent side walls of the body.

[0031] In some embodiments, the circuit breaker device further comprises:

[0032] a detector, disposed outside the housing, connected to the disconnection mechanism, the AC circuit, and the DC circuit, configured to detect the current and / or voltage of the DC circuit and trigger the disconnection mechanism when the current is less than a first preset threshold value and / or the voltage is less than a second preset threshold value, so that the disconnection mechanism disconnects the AC conductive element and the DC conductive element; and / or,

[0033] It is configured to detect the current and voltage of the AC circuit and trigger the disconnection mechanism when the current is less than a third preset threshold and / or the voltage is less than a fourth preset threshold, so that the disconnection mechanism disconnects the AC conductive element and the DC conductive element.

[0034] In some embodiments, the circuit breaker is configured to be connected to the drive motor and the drive motor controller, and the detector is configured to be connected to the drive motor controller.

[0035] In some embodiments, the detector is configured to detect the state of the bridge arm of the drive motor controller, and when the state of the bridge arm of the drive motor controller is abnormal, trigger the disconnection mechanism so that the disconnection mechanism disconnects the AC conductive element and the DC conductive element.

[0036] In some embodiments, the circuit breaker is configured to be connected to the drive motor, the drive motor controller, the generator, and the generator controller, and the first AC conductive element and the second AC conductive element are both configured to be connected between the drive motor and the drive motor controller.

[0037] In some embodiments, the circuit breaker is configured to be connected to the battery pack and the power domain controller, and the DC conductor is configured to be connected between the battery pack and the power domain controller.

[0038] According to a second aspect of the present application, there is provided a wiring device, comprising:

[0039] a circuit breaker as aforesaid; and

[0040] A connecting structure is connected to the circuit breaker device.

[0041] In some embodiments, the connection structure has an AC connection copper busbar and a DC connection copper busbar. The AC connection copper busbar is configured to be connected to the AC conductive member through an AC circuit, and the DC connection copper busbar is configured to be connected to the DC conductive member through a DC circuit.

[0042] In some embodiments, the connection structure further has a mounting seat, and the circuit breaker device is mounted on the mounting seat.

[0043] In some embodiments, the second copper busbar is further configured to be connected to the mounting base, so that the circuit breaker device is connected to the mounting base.

[0044] In some embodiments, the first copper busbar includes a first AC copper busbar and a second AC copper busbar, the first AC copper busbar is connected to the first AC conductive member of the circuit breaker device, and the second AC copper busbar is connected to the second AC conductive member of the circuit breaker device.

[0045] In some embodiments, the first copper busbar further includes a first connecting copper busbar, and the first connecting copper busbar is configured to be connected to the mounting base so that the circuit breaker device is connected to the mounting base; and / or,

[0046] The first copper busbar further includes a second connecting copper busbar, which is configured to be connected to the mounting base so that the circuit breaker device is connected to the mounting base.

[0047] In some embodiments, the circuit breaker is connected to the drive motor and the drive motor controller;

[0048] The first AC copper busbar and the second AC copper busbar are both configured to connect to a drive motor and a drive motor controller.

[0049] In some embodiments, the first AC copper busbar includes a first AC input copper busbar and a first AC output copper busbar, wherein the first AC input copper busbar is configured to be connected to the first AC conductive member at one end and to be connected to the drive motor controller at the other end, and the first AC output copper busbar is configured to be connected to the first AC conductive member at one end and to be connected to the drive motor at the other end;

[0050] The second AC copper busbar includes a second AC input copper busbar and a second AC output copper busbar. The second AC input copper busbar is configured to be connected to the second AC conductive member at one end and to the drive motor controller at the other end. The second AC output copper busbar is configured to be connected to the second AC conductive member at one end and to the drive motor at the other end.

[0051] In some embodiments, the connection structure further includes a shell having a mounting seat, and the first AC copper busbar and the second AC copper busbar are connected to the shell.

[0052] In some embodiments, the connection structure further includes a third AC copper busbar, which is configured to be at most partially covered by the shell.

[0053] In some embodiments, the third AC copper busbar includes a connected third AC input copper busbar, and the third AC input copper busbar is configured to be connected to the drive motor controller; and / or,

[0054] The third AC copper busbar further includes a third AC output copper busbar connected to the third AC input copper busbar, and the third AC output copper busbar is configured to be connected to the drive motor.

[0055] In some embodiments, at least one sub-connection point is provided on the input end of the first AC copper busbar, and / or at least one sub-connection point is provided on the input end of the second AC copper busbar, and / or at least one sub-connection point is provided on the input end of the third AC copper busbar, and the sub-connection point is configured to be connected to the backup circuit module.

[0056] In some embodiments, the first AC copper busbar is a U-phase connecting copper busbar, and the second AC copper busbar is a V-phase connecting copper busbar.

[0057] In some embodiments, the circuit breaker device is configured to be connected to the generator and the generator controller, and the wiring device further includes a third copper busbar configured to be connected to the generator and the generator controller.

[0058] In some embodiments, the third copper busbar includes a third U-phase copper busbar, a third V-phase copper busbar, and a third W-phase copper busbar.

[0059] In some embodiments, the third U-phase copper busbar, the third V-phase copper busbar, and the third W-phase copper busbar are configured to be at most partially covered by the housing.

[0060] In some embodiments, the cross-sectional area of the first copper busbar is larger than the cross-sectional area of the AC conductor; and / or the cross-sectional area of the second copper busbar is larger than the cross-sectional area of the DC conductor.

[0061] According to a third aspect of the present application, a vehicle is provided, comprising the circuit breaker device or the wiring device as described above.

[0062] In the embodiments provided in the present application, the AC conductive parts and DC conductive parts of the circuit breaker device are disconnected when an electrical safety problem occurs. That is, the circuit breaker device provided in the present application can disconnect the AC circuit and the DC circuit at the same time, thereby protecting the AC circuit and the DC circuit, and the space occupied is smaller, which helps to improve the space utilization of the vehicle.

[0063] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0065] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same drawing numbers represent the same parts in the following description.

[0066] Figure 1 is a cross-sectional view of a circuit breaker device provided in an embodiment of the present application;

[0067] Figure 2 This is a structural diagram of a wiring device provided in an embodiment of the present application;

[0068] Figure 3 yes Figure 2 A partial structural schematic diagram of a wiring device is provided, wherein a circuit breaker device is shown;

[0069] Figure 4 yes Figure 2 A schematic diagram of another partial structure of a wiring device is provided, wherein a circuit breaker device is shown;

[0070] Figure 5 yes Figure 2 A schematic structural diagram of a housing of a provided wiring device;

[0071] Figure 6 yes Figure 2 A partial structural diagram of the provided wiring device, wherein the housing is not shown;

[0072] Figure 7 yes Figure 2 A structural schematic diagram of the wiring device provided from another perspective.

[0073] Description of reference numerals:

[0074] 11. AC conductive member; 111. First weak portion; 112. First connecting portion; 113. First AC conductive member; 114. Second AC conductive member; 12. DC conductive member; 121. Second weak portion; 122. Second connecting portion; 13. Arc extinguishing structure;

[0075] 2. Shell; 21. First baffle; 22. Second baffle; 23. Body; 24. End plate;

[0076] 3. Cutting mechanism;

[0077] 4. Arc extinguishing medium;

[0078] 5. Reinforcement;

[0079] 6. Detector;

[0080] 7. Housing; 71. Mounting seat;

[0081] 8. First copper busbar; 81. First AC copper busbar; 811. First AC input copper busbar; 812. First AC output copper busbar; 82. Second AC copper busbar; 821. Second AC input copper busbar; 822. Second AC output copper busbar; 83. First connecting copper busbar; 84. Second connecting copper busbar; 85. Third AC copper busbar; 851. Third AC input copper busbar; 852. Third AC output copper busbar;

[0082] 9. Second copper busbar;

[0083] 10. Sub-connection point;

[0084] 20, third copper busbar; 201, third U-phase copper busbar; 202, third V-phase copper busbar; 203, third W-phase copper busbar;

[0085] 100. Circuit breaker;

[0086] 200, connection structure;

[0087] X, first direction;

[0088] Y, second direction. DETAILED DESCRIPTION

[0089] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0090] According to the first aspect of this application, see Figures 1 to 3 , Figure 1 is a cross-sectional view of a circuit breaker device provided in an embodiment of the present application. Figure 2 This is a structural diagram of a wiring device provided in an embodiment of the present application. Figure 3 yes Figure 2A schematic diagram of a partial structure of a wiring device is provided, wherein a circuit breaker device 100 is shown. The present application provides a circuit breaker device 100, comprising: an AC conductor 11 configured to connect to an AC circuit; a DC conductor 12 spaced apart from the AC conductor 11 and configured to connect to a DC circuit; a housing 2 having a receiving cavity, wherein the AC conductor 11 and the DC conductor 12 are at least partially disposed within the receiving cavity, and in the event of an electrical safety issue, the portions of the AC conductor 11 and the DC conductor 12 disposed within the receiving cavity are disconnected.

[0091] Traditional thermal fuses rely on high current to melt, but traditional fuses are difficult to meet the aging durability requirements under high current environments. The circuit breaker device 100 of the present application can actively disconnect the AC conductive part 11 and the DC conductive part 12 when there is a power safety problem, instead of relying on high current to melt the fuse like traditional thermal fuses, which makes the present application more reliable. At the same time, Figure 1 As shown, in the embodiment of the present application, by making the same circuit breaker device 100 include an AC conductor 11 and a DC conductor 12, and both the AC conductor 11 and the DC conductor 12 can be disconnected when an electrical safety problem occurs, the circuit breaker device 100 provided by the present application can cut off the AC circuit and the DC circuit at the same time, thereby protecting the AC circuit and the DC circuit. Compared with providing protection devices in the AC circuit and the DC circuit respectively, the circuit breaker device 100 of the present application has both the AC conductor 11 and the DC conductor 12, which can protect the AC circuit and the DC circuit at the same time, making the space occupied by the protection devices smaller, which helps to improve the space utilization of the vehicle. In addition, adopting such a solution also makes the arc generated when the AC conductor 11 and the DC conductor 12 are disconnected located within the housing 2, which can prevent the arc from igniting surrounding combustible materials due to the arc wandering, and helps to reduce the possibility of risks such as fire.

[0092] It should be noted that Figure 1 yes Figure 7 The schematic cross-sectional view of the circuit breaker device is shown in a top view.

[0093] In some embodiments of the present application, the AC conductive member 11 includes at least a first AC conductive member 113 and a second AC conductive member 114 . The first AC conductive member 113 and the second AC conductive member 114 are spaced apart and are both configured to be connected to an AC circuit.

[0094] AC circuits are generally classified as single-phase, two-phase, and three-phase. By employing this approach, the circuit breaker device 100 provided herein can successfully disconnect AC circuits when applied to single-phase, two-phase, and three-phase AC circuits. For example, when the circuit breaker device 100 is applied to a single-phase AC circuit, the single-phase AC circuit can be disconnected by connecting either the first AC conductor 113 or the second AC conductor 114 to the live wire of the single-phase AC circuit. Furthermore, the circuit breaker device 100 provided herein comprises at least the first AC conductor 113 and the second AC conductor 114, enabling the circuit breaker device 100 to simultaneously connect to at least two single-phase AC circuits and disconnect at least two single-phase AC circuits simultaneously, thereby reducing the time required to disconnect multiple single-phase AC circuits and improving the reliability of the circuit breaker device 100 provided herein. Furthermore, when the circuit breaker device 100 is applied to a two-phase AC circuit, the two live wires in the two-phase AC circuit can be connected to the first AC conductor 113 and the second AC conductor 114, respectively. When applied to a three-phase AC circuit, any two live wires in the same three-phase AC circuit can be connected to the first AC conductive member 113 and the second AC conductive member 114 respectively.

[0095] In some embodiments of the present application, one of the first AC conductive member 113 and the second AC conductive member 114 is a U-phase AC conductive member, and the other is a V-phase AC conductive member. This ensures absolute safety of the AC circuit and simplifies the structure of the circuit breaker 100.

[0096] Please continue reading Figures 1 to 3 In some embodiments of the present application, the AC conductive member 11 has a first weak portion 111 , which is disposed in the accommodating cavity and configured to be disconnected when an electrical safety problem occurs.

[0097] This solution facilitates disconnection of the AC conductor 11 from the first weak portion 111 , helping to reduce the time it takes to disconnect the AC conductor 11 , thereby reducing the possibility of fire and other risks caused by untimely disconnection of the AC conductor 11 .

[0098] Please continue reading Figures 1 to 3 In some embodiments of the present application, the AC conductive member 11 further includes a first connecting portion 112. The first connecting portion 112 is disposed at at least one end of the first weak portion 111 and is configured to connect to the AC circuit. In this manner, the first connecting portion 112 can be used to support the first weak portion 111 while also being used to connect to the AC circuit.

[0099] Please continue reading Figures 1 to 3In some embodiments of the present application, the thickness of the first weak portion 111 is less than the thickness of the first connecting portion 112 in the first direction X. This ensures normal operation after connection to the AC circuit via the first connecting portion 112 while reducing the time required to disconnect the first weak portion 111, thereby reducing the possibility of fire and other risks caused by untimely disconnection of the AC conductive member 11.

[0100] It should be noted that the first direction X in the embodiment of the present application is the thickness direction of the AC conductive member 11 .

[0101] Please continue reading Figures 1 to 3 In some embodiments of the present application, in the second direction Y, the width of the first weak portion 111 is smaller than the width of the first connecting portion 112. The technical effects are similar or identical to those of the above-mentioned embodiment in which the thickness of the first weak portion 111 is smaller than the thickness of the first connecting portion 112, and are not further described in this application.

[0102] It should be noted that the second direction Y in the embodiment of the present application is the length direction of the AC conductive member 11 .

[0103] Please continue reading Figures 1 to 3 In some embodiments of the present application, the DC conductive member 12 has a second weak portion 121 , which is disposed in the accommodating cavity and configured to be disconnected when an electrical safety problem occurs.

[0104] This solution facilitates disconnection of the DC conductor 12 from the second weak portion 121 , helping to reduce the time it takes to disconnect the DC conductor 12 , thereby reducing the possibility of fire and other risks caused by untimely disconnection of the DC conductor 12 .

[0105] Please continue reading Figures 1 to 3 In some embodiments of the present application, the DC conductive member 12 further includes a second connecting portion 122. The second connecting portion 122 is disposed at at least one end of the second weak portion 121 and is configured to connect to the DC circuit. In this manner, the second connecting portion 122 can be used to support the second weak portion 121 while also being used to connect to the AC circuit.

[0106] Please continue reading Figures 1 to 3 In some embodiments of the present application, the thickness of the second weak portion 121 is less than the thickness of the second connecting portion 122 in the first direction X. This ensures normal operation after connection to the DC circuit using the second connecting portion 122, while also reducing the time required to disconnect the second weak portion 121, thereby reducing the possibility of fire and other risks caused by untimely disconnection of the DC conductive element 12.

[0107] In some embodiments of the present application, the width of the second weak portion 121 is smaller than the width of the second connecting portion 122 in the second direction Y. The technical effects are similar or identical to those of the above-mentioned embodiment in which the thickness of the second weak portion 121 is smaller than the thickness of the second connecting portion 122, and are not further described herein.

[0108] Please continue reading Figures 1 to 3 In some embodiments of the present application, the circuit breaker device 100 further includes: a cutting mechanism 3, which is arranged at one end of the accommodating cavity and is spaced apart from the AC conductor 11 and the DC conductor 12. The cutting mechanism 3 is configured to cut off the AC conductor 11 and / or the DC conductor 12 to disconnect the AC conductor 11 and / or the DC conductor 12.

[0109] Traditional thermal fuses are designed with a narrow diameter on the fuse element, which will be melted when there is an overcurrent, thereby cutting off the circuit. However, this method makes the temperature of the fuse element higher during normal operation, causing the fuse element to be in a high temperature state for a long time, especially at the narrow diameter. This causes thermal fatigue and thermal aging at the narrow diameter of the fuse element, resulting in poor durability of the fuse element and a short fuse life. However, the AC conductive member 11 and the DC conductive member 12 of the circuit breaker device 100 provided in the present application are disconnected by the disconnection mechanism 3, that is, the circuit breaker device 100 provided in the present application is an actively triggered type. Compared with traditional thermal fuses, the circuit breaker device 100 provided in the present application can fundamentally eliminate the high-voltage circuit durability problem that may be caused by factors such as fuse aging in traditional thermal fuses, and has high reliability and high safety. In addition, the thermal fuse is limited by the melting point of the thermal fuse, so that the range of current carrying capacity it can bear is fixed. However, in actual use, the battery pack connected to the power domain controller is replaceable, and the voltages of different battery packs may be different, resulting in different output currents. Obviously, a thermal fuse with a certain current carrying capacity range is difficult to meet the fusing requirements when the power domain controller is connected to different battery packs, resulting in the need to frequently replace the fuse when using a thermal fuse to protect the power domain controller. The AC conductive part 11 and the DC conductive part 12 of the present application are cut off by the cutting mechanism 3, so there is no need to set a narrow diameter on them. At the same time, there is no need to strictly limit the cross-sectional area of the fuse to ensure that it can be melted at the target current, so that the cross-sectional area of the AC conductive part 11 and the DC conductive part 12 of the present application can be larger, thereby having a larger current carrying capacity and being suitable for more scenarios.

[0110] In some embodiments of the present application, the cutting mechanism 3 includes an ignition tube, which is configured to cut off the AC conductive member 11 and the DC conductive member 12 after being ignited.

[0111] Please continue reading Figures 1 to 3In some embodiments of the present application, the circuit breaker device 100 further includes: a first partition 21 disposed in the accommodating cavity and configured to separate the disconnection mechanism 3 from both the AC conductive member 11 and the DC conductive member 12 .

[0112] In the embodiment of the present application, the first partition 21 is used to separate the disconnecting mechanism 3 from the AC conductive member 11 and the DC conductive member 12, thereby reducing the possibility of the disconnecting mechanism 3 being mistakenly triggered by the AC conductive member 11 and the DC conductive member 12, which helps to improve the reliability of the circuit breaker device 100 provided in the present application.

[0113] Please continue reading Figures 1 to 3 In some embodiments of the present application, the circuit breaker device 100 further includes: an arc extinguishing medium 4 disposed in the accommodating cavity, and the arc extinguishing medium 4 is configured to extinguish the arc generated after the AC conductor 11 and the DC conductor 12 are cut off.

[0114] In an embodiment of the present application, an arc-extinguishing medium 4 is provided in the housing 2, so that the arc generated when the AC conductor 11 and the DC conductor 12 are disconnected can be extinguished by the arc-extinguishing medium 4, thereby reducing the time the arc exists and further reducing the possibility of the arc igniting surrounding combustible materials, which helps to improve the reliability of the circuit breaker device 100 provided in the present application.

[0115] Please continue reading Figures 1 to 3 In some embodiments of the present application, the circuit breaker device 100 further includes: a second partition 22, which is arranged in the accommodating cavity and is located on the side of the AC conductor 11 and the DC conductor 12 away from the cutting mechanism 3, is connected to the inner wall of the shell 2, and is enclosed with the shell 2 to form an arc extinguishing chamber, so that the arc extinguishing medium 4 is arranged in the arc extinguishing chamber.

[0116] In the embodiment of the present application, the second partition 22 is used to enclose the housing 2 to form an arc extinguishing chamber, and the arc extinguishing medium 4 is located within the arc extinguishing chamber. This prevents the arc extinguishing medium 4 from interfering with the normal operation of the AC conductor 11 and the DC conductor 12, thereby improving the reliability of the circuit breaker device 100 provided by the present application. In addition, the arc extinguishing medium 4 is located in the closed arc extinguishing chamber, which increases the variety of arc extinguishing media 4 that can be selected. Different types of arc extinguishing media 4 are also applicable in different scenarios, thereby making the circuit breaker device 100 provided by the present application more applicable.

[0117] In the embodiment of the present application, the first partition 21 and the second partition 22 will also be cut off successively when the cutting mechanism 3 cuts off the AC conductor 11 and the DC conductor 12 .

[0118] In an embodiment of the present application, the first partition 21 and the second partition 22 can be integrally formed with the shell 2, the first partition 21 and the shell 2 form a first accommodating cavity, the second partition 22 and the shell 2 form a second accommodating cavity, an opening is opened on the side of the first accommodating cavity away from the first partition 21, and a second opening is opened on the side of the second accommodating cavity away from the second partition 22, and a second cover is provided at the second opening, the cutting mechanism 3 is placed into the first accommodating cavity from the first opening, and the arc extinguishing medium 4 is added to the second accommodating cavity from the second opening, and the second cover is used to close the second accommodating cavity so that the arc extinguishing medium 4 is located in the second accommodating cavity (i.e., the arc extinguishing chamber).

[0119] Please continue reading Figures 1 to 3 In some embodiments of the present application, the circuit breaker device 100 further includes: an arc extinguishing structure 13, which is provided on the AC conductor 11 and the DC conductor 12 and is configured to guide the arc generated after the AC conductor 11 and the DC conductor 12 are cut off to the arc extinguishing medium 4.

[0120] By adopting such a solution, the arc generated when the AC conductor 11 and the DC conductor 12 are cut off by the cutting mechanism 3 can be quickly guided to the arc extinguishing medium 4 by the arc extinguishing structure 13, thereby reducing the time for the arc extinguishing medium 4 to travel in the shell, thereby reducing the possibility of the arc igniting the surrounding combustible materials, reducing the possibility of risks such as fire, improving the protection effect of the AC circuit and the DC circuit, and making the circuit breaker device 100 provided in this application highly reliable.

[0121] Please continue reading Figures 1 to 3 In some embodiments of the present application, the arc extinguishing structure 13 is an arc extinguishing fuse, and both ends of the arc extinguishing fuse arranged on the AC conductor 11 are connected to the first weak portion 111, and / or, both ends of the arc extinguishing fuse arranged on the DC conductor 12 are connected to the second weak portion 121.

[0122] By adopting such a solution, the arc generated by the AC conductive member 11 that is cut into two parts can be guided by the arc-extinguishing fuse, reducing the possibility of the arc wandering in the housing 2, thereby improving the reliability and protection effect of the circuit breaker device 100 of the present application.

[0123] In some embodiments of the present application, the arc-extinguishing fuse is located within the arc-extinguishing medium 4 on a side away from the AC conductor 11 or the DC conductor 12. This allows the arc generated by the AC conductor 11 and the DC conductor 12 being disconnected by the disconnection mechanism 3 to be directed directly to the arc-extinguishing medium 4, reducing or preventing the arc from wandering within the housing 2. This reduces the risk of the arc igniting combustibles and causing a fire, thereby improving the reliability of the circuit breaker device 100 provided herein and the protective effect on the AC and DC circuits.

[0124] Please continue reading Figures 1 to 3In some embodiments of the present application, the housing 2 includes a main body 23 and an end plate 24 connected to each other. The end plate 24 is disposed at an end of the main body 23 away from the disconnect mechanism 3. The circuit breaker device 100 also includes a reinforcement member 5, which is configured to connect the main body 23 and the end plate 24. In this way, the reinforcement member 5 can be used to enhance the connection strength between the main body 23 and the end plate 24, thereby improving the reliability of the circuit breaker device 100 of the present application.

[0125] In some embodiments of the present application, one end of the reinforcement 5 is disposed on a side of the end plate 24 away from the cutting mechanism 3 , and the other end passes through the end plate 24 and is connected to the inner end wall of the body 23 close to the cutting mechanism 3 .

[0126] By adopting such a solution, the reinforcement member 5 can be used to further enhance the connection strength between the body 23 and the end plate 24 , thereby improving the reliability of the circuit breaker device 100 of the present application.

[0127] In some embodiments of the present application, the reinforcement member 5 is disposed at the connection between adjacent side walls of the body 23. In this way, the reinforcement member 5 can be used to enhance the structural strength of the housing 2, thereby improving the reliability of the circuit breaker device 100 of the present application.

[0128] Please continue reading Figures 1 to 3 In some embodiments of the present application, the reinforcement 5 includes a positioning bolt and a support column. The threaded end of the positioning bolt passes through the end plate 24 and enters the interior of the shell 2, and is connected to the support column arranged inside the shell 2. One end of the support column is connected to the positioning bolt, and the other end is connected to the inner end wall of the shell 2.

[0129] Please continue reading Figures 1 to 3 In some embodiments of the present application, the circuit breaker device 100 further includes: a detector 6, which is disposed outside the housing 2, connected to the disconnection mechanism 3, the AC circuit, and the DC circuit, and is configured to detect the current and / or voltage of the DC circuit, and trigger the disconnection mechanism 3 when the current is less than a first preset threshold value and / or the voltage is less than a second preset threshold value, so that the disconnection mechanism 3 disconnects the AC conductive member 11 and the DC conductive member 12; and / or is configured to detect the current and / or voltage of the AC circuit, and trigger the disconnection mechanism 3 when the current is less than a third preset threshold value and / or the voltage is less than a fourth preset threshold value, so that the disconnection mechanism 3 disconnects the AC conductive member 11 and the DC conductive member 12.

[0130] In the embodiment of the present application, a detector 6 is provided and connected to the cutting mechanism 3, the AC circuit and the DC circuit, so that the detector 6 can be used to detect the current and voltage of the AC circuit and the DC circuit, so that the AC conductive member 11 and the DC conductive member 12 can be cut off in time when the current and / or voltage is greater than a preset threshold value, thereby ensuring the safety of the AC circuit and the DC circuit.

[0131] In some embodiments of the present application, the circuit breaker device 100 is configured to be connected to the drive motor and the drive motor controller, and the detector 6 is configured to be connected to the drive motor controller.

[0132] In some embodiments of the present application, the detector 6 is configured to detect the state of the bridge arm of the drive motor controller and, when the state of the bridge arm of the drive motor controller is abnormal, trigger the disconnection mechanism 3 so that the disconnection mechanism 3 disconnects the AC conductive member 11 and the DC conductive member 12. In this way, the detector 6 is conveniently used to promptly detect abnormalities in the state of the bridge arm of the drive motor controller, so that the AC conductive member 11 and the DC conductive member 12 can be promptly disconnected when the state of the bridge arm is abnormal, thereby ensuring the safety of the drive motor controller and the drive motor.

[0133] In some embodiments of the present application, the circuit breaker device 100 is configured to be connected to the drive motor and the drive motor controller, and the first AC conductor 113 and the second AC conductor 114 are both configured to be connected between the drive motor and the drive motor controller. This ensures that when the disconnection mechanism 3 disconnects the AC conductor 11 and the DC conductor 12, the drive motor will stop operating, ensuring the safety of the drive motor and the vehicle.

[0134] In some embodiments of the present application, the circuit breaker 100 is configured to connect to the battery pack and the power domain controller, and the DC conductive member 12 is configured to connect between the battery pack and the power domain controller. In this way, the battery pack and the power domain controller can be disconnected in a timely manner, ensuring the safety of the battery pack, the power domain controller, and the vehicle.

[0135] According to the second aspect of the present application, a wiring device is provided. Figures 2 to 7 , Figure 4 yes Figure 2 A schematic diagram of another partial structure of a wiring device is provided, wherein a circuit breaker device is shown. Figure 5 yes Figure 2 A schematic diagram of the structure of the housing of the wiring device is provided. Figure 6 yes Figure 2 A partial structural diagram of the wiring device provided, wherein the housing is not shown, Figure 7 yes Figure 2 A schematic structural diagram of a wiring device from another perspective is provided. The wiring device comprises: the circuit breaker device 100 as described above; and a connecting structure 200 connected to the circuit breaker device 100.

[0136] In some embodiments of the present application, the connection structure 200 has a first copper busbar 8 and a second copper busbar 9. The first copper busbar 8 is configured to be connected to the AC conductor 11 through an AC circuit, and the second copper busbar 9 is configured to be connected to the DC conductor 12 through a DC circuit.

[0137] In the embodiment of the present application, the first copper bar 8 of the connection structure 200 is connected to the AC conductive member 11 of the circuit breaker 100 via an AC circuit, and the second copper bar 9 is connected to the DC conductive member 12 of the circuit breaker 100 via a DC circuit. This allows the first copper bar 8 to connect AC components to the circuit breaker 100, and the second copper bar 9 to connect DC components to the circuit breaker 100. This allows the circuit breaker 100 to protect both AC and DC components. Furthermore, integrating the first copper bar 8, the second copper bar 9, and the circuit breaker 100 reduces the space occupied, helping to improve space utilization in vehicles and other applications equipped with wiring devices.

[0138] In some embodiments of the present application, the first copper bar 8 and the second copper bar 9 are arranged at intervals, so as to prevent electromagnetic interference between the circuits.

[0139] In some embodiments of the present application, the connection structure 200 further has a mounting seat 71 , and the circuit breaker device 100 is mounted on the mounting seat 71 .

[0140] In the embodiment of the present application, by arranging the circuit breaker device 100 on the mounting seat 71 of the connection structure 200 , the wiring device provided by the present application has high mechanical vibration strength and high impact resistance.

[0141] Please continue reading Figures 2 to 7 In some embodiments of the present application, the second copper busbar 9 is further connected to the mounting base 71 so that the circuit breaker device 100 is connected to the mounting base 71 .

[0142] In the embodiment of the present application, since the second copper busbar 9 is connected to the DC conductive member 12 , the circuit breaker device 100 can be connected to the mounting base 71 by connecting the second copper busbar 9 to the mounting base 71 , thereby fixing the relative positions of the circuit breaker device 100 and the mounting base 71 .

[0143] Please continue reading Figures 2 to 7 In some embodiments of the present application, the first copper busbar 8 includes a first AC copper busbar 81 and a second AC copper busbar 82 . The first AC copper busbar 81 is connected to the first AC conductive member 113 of the circuit breaker device 100 , and the second AC copper busbar 82 is connected to the second AC conductive member 114 of the circuit breaker device 100 .

[0144] Please continue reading Figures 2 to 7 In some embodiments of the present application, the first copper busbar 8 further includes a first connecting copper busbar 83, which is connected to the mounting base 71 to connect the circuit breaker 100 to the mounting base 71. In this way, the circuit breaker 100 can be connected to the mounting base 71 using the first connecting copper busbar 83, thereby improving the connection stability between the circuit breaker 100 and the mounting base 71.

[0145] In some embodiments of the present application, the first connecting copper bus 83 is also connected to the first AC copper bus 81 .

[0146] Please continue reading Figures 2 to 7 In some embodiments of the present application, the first copper busbar 8 further includes a second connecting copper busbar 84, which is connected to the mounting base 71 so that the circuit breaker 100 is connected to the mounting base 71. The technical effects of the first copper busbar 8 including the first connecting copper busbar 83 are similar or identical to those of the above-mentioned first copper busbar 8, and are not further described in this application.

[0147] In some embodiments of the present application, the second connecting copper bus 84 is also connected to the second AC copper bus 82 .

[0148] Please continue reading Figures 2 to 7 In some embodiments of the present application, the first connecting copper bus 83 and the second connecting copper bus 84 are connected to different surfaces of the mounting base 71 .

[0149] Please continue reading Figures 2 to 7 In some embodiments of the present application, the circuit breaker device 100 is connected to the drive motor and the drive motor controller; the first AC copper busbar 81 and the second AC copper busbar 82 are both configured to connect to the drive motor and the drive motor controller.

[0150] In some embodiments of the present application, the first AC copper busbar 81 includes a first AC input copper busbar 811 and a first AC output copper busbar 812. The first AC input copper busbar 811 is configured to be connected to the first AC conductive member 113 at one end and to the drive motor controller at the other end. The first AC output copper busbar 812 is configured to be connected to the first AC conductive member 113 at one end and to the drive motor controller at the other end. The second AC copper busbar 82 includes a second AC input copper busbar 821 and a second AC output copper busbar 822. The second AC input copper busbar 821 is configured to be connected to the second AC conductive member 114 at one end and to the drive motor controller at the other end. The second AC output copper busbar 822 is configured to be connected to the second AC conductive member 114 at one end and to the drive motor controller at the other end.

[0151] In the embodiment of the present application, the first AC input copper bar 811 and the first AC output copper bar 812 are used to connect the circuit breaker device 100 to the drive motor controller and the drive motor, so that the circuit breaker device 100 can be used to disconnect the drive motor from the drive motor controller to ensure the safety of the drive motor and the drive motor controller. The technical effect of the second AC copper bar 82 including the second AC input copper bar 821 and the second AC output copper bar 822 is similar or identical to the technical effect of the embodiment described above in which the first AC copper bar 81 includes the first AC input copper bar 811 and the first AC output copper bar 812, and will not be further described in this application.

[0152] Please continue reading Figures 2 to 7In some embodiments of the present application, the connection structure 200 further includes a housing 7 , the housing 7 has a mounting base 71 , and the first AC copper busbar 81 and the second AC copper busbar 82 are both connected to the housing 7 .

[0153] In the embodiment of the present application, by connecting the housing 7 to the first AC copper busbar 81 and the second AC copper busbar 82, the housing 7 can be used to increase the connection strength between the first AC copper busbar 81, the second AC copper busbar 82 and the connection structure 200, thereby improving the reliability of the connection device provided by the present application.

[0154] Please continue reading Figures 2 to 7 In some embodiments of the present application, the connection structure 200 further includes a third AC copper busbar 85 , and the third AC copper busbar 85 is configured to be at most partially covered by the housing 7 .

[0155] In some embodiments of the present application, the third AC copper busbar 85 includes a connected third AC input copper busbar 851, and the third AC input copper busbar 851 is configured to be connected to the drive motor controller; and / or, the third AC copper busbar 85 also includes a third AC output copper busbar 852 connected to the third AC input copper busbar 851, and the third AC output copper busbar 852 is configured to be connected to the drive motor.

[0156] In the embodiment of the present application, the third copper busbar 20 is partially covered by the housing 7 so that the third copper busbar 20 is connected to the connection structure 200. This improves the integration of the wiring device and reduces the space occupied by the wiring device, thereby improving space utilization.

[0157] Please continue reading Figures 2 to 7 In some embodiments of the present application, at least one sub-connection point 10 is provided on the input end of the first AC copper busbar 81, and / or at least one sub-connection point 10 is provided on the input end of the second AC copper busbar 82, and / or at least one sub-connection point 10 is provided on the input end of the third AC copper busbar 85, and the sub-connection point 10 is configured to be connected to the backup circuit module.

[0158] In an embodiment of the present application, a sub-connection point 10 is provided on each input end of the first AC copper busbar 81, the second AC copper busbar 82 and the third AC copper busbar 85, so that they can be connected to a backup circuit module, such as a midpoint circuit module, through the sub-connection point 10, and the first AC copper busbar 81, the second AC copper busbar 82 and the third AC copper busbar 85 are connected to the drive motor and the drive motor controller, so that the output waveform quality can be improved, ensuring that the drive motor can operate efficiently and stably.

[0159] Please continue reading Figures 2 to 7 In some embodiments of the present application, the first AC copper busbar 81 is a U-phase connecting copper busbar, and the second AC copper busbar 82 is a V-phase connecting copper busbar. In this way, the structure of the wiring device is simplified while ensuring the absolute safety of the AC circuit.

[0160] Please continue reading Figures 2 to 7 In some embodiments of the present application, the circuit breaker device 100 is configured to be connected to the generator and the generator controller, and the wiring device further includes a third copper busbar 20, which is configured to be connected to the generator and the generator controller.

[0161] In some embodiments of the present application, the third copper busbar 20 includes a third U-phase copper busbar 201 , a third V-phase copper busbar 202 , and a third W-phase copper busbar 203 .

[0162] In some embodiments of the present application, the third U-phase copper busbar 201, the third V-phase copper busbar 202, and the third W-phase copper busbar 203 are configured to be at most partially enclosed by the housing 7. In this way, the third copper busbar 20 can be used to connect AC devices, allowing the wiring device provided by the present application to connect to more devices and expand the scope of application of the wiring device provided by the present application.

[0163] Please continue reading Figures 2 to 7 In some embodiments of the present application, the cross-sectional area of the first copper busbar 8 is larger than that of the AC conductor 11; and / or the cross-sectional area of the second copper busbar 9 is larger than that of the DC conductor 12. This can prevent electromagnetic interference between the AC conductor 11 and the DC conductor 12 within the circuit breaker device 100, thereby improving the reliability of the circuit breaker device 100 and the wiring device of the present application.

[0164] In some embodiments of the present application, the connection structure 200 further has a first connection structure 200 , and the wiring device is configured to be connected to the power domain controller through the first connection structure 200 .

[0165] According to a third aspect of the present application, a vehicle is provided, comprising the circuit breaker device 100 or the wiring device as described above. The vehicle has all the advantages of the circuit breaker device 100 or the wiring device as described above, which will not be described in detail in this application.

[0166] The vehicle may be a fuel vehicle, a plug-in hybrid vehicle or a new energy vehicle, etc., and this application does not make any specific restrictions on this.

[0167] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0168] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0169] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0170] The above are merely preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A circuit breaker device (100), characterized in that: include: an AC conductive member (11) configured to be connected to an AC circuit; a DC conductive member (12) spaced apart from the AC conductive member (11) and configured to be connected to a DC circuit; The housing (2) has a housing cavity, the AC conductive member (11) and the DC conductive member (12) are at least partially disposed in the housing cavity, and when an electrical safety problem occurs, the AC conductive member (11) and the DC conductive member (12) are partially disconnected from each other in the housing cavity.

2. The circuit breaker device (100) according to claim 1, characterized in that The AC conductive member (11) comprises at least a first AC conductive member (113) and a second AC conductive member (114); the first AC conductive member (113) and the second AC conductive member (114) are arranged at intervals and are both configured to be connected to the AC circuit.

3. The circuit breaker device (100) according to claim 2, characterized in that One of the first AC conductive member (113) and the second AC conductive member (114) is a U-phase AC conductive member, and the other is a V-phase AC conductive member.

4. The circuit breaker device (100) according to any one of claims 1 to 3, characterized in that: The AC conductive member (11) has a first weak portion (111), which is arranged in the accommodating cavity and is configured to be disconnected when an electrical safety problem occurs.

5. The circuit breaker device (100) according to claim 4, characterized in that: The AC conductive member (11) further comprises a first connecting portion (112), wherein the first connecting portion (112) is provided at at least one end of the first weak portion (111) and is configured to be connected to the AC circuit.

6. The circuit breaker device (100) according to claim 5, characterized in that: In the first direction, the thickness of the first weak portion (111) is smaller than the thickness of the first connecting portion (112); and / or, in the second direction, the width of the first weak portion (111) is smaller than the width of the first connecting portion (112).

7. The circuit breaker device (100) according to claim 3, characterized in that The DC conductive member (12) has a second weak portion (121), which is arranged in the accommodating cavity and is configured to be disconnected when an electrical safety problem occurs.

8. The circuit breaker device (100) according to claim 7, characterized in that: The DC conductive member (12) further includes a second connecting portion (122), which is provided at at least one end of the second weak portion (121) and is configured to be connected to the DC circuit.

9. The circuit breaker device (100) according to claim 7, characterized in that: In the first direction, the thickness of the second weak portion (121) is smaller than the thickness of the second connecting portion (122); and / or, in the second direction, the width of the second weak portion (121) is smaller than the width of the second connecting portion (122).

10. The circuit breaker device (100) according to claim 7, characterized in that: The circuit breaker device (100) further comprises: A cut-off mechanism (3) is provided at one end of the accommodating cavity and is spaced apart from the AC conductive member (11) and the DC conductive member (12). The cut-off mechanism (3) is configured to cut off the AC conductive member (11) and / or the DC conductive member (12) so as to disconnect the AC conductive member (11) and / or the DC conductive member (12).

11. The circuit breaker device (100) according to claim 10, characterized in that: The circuit breaker device (100) further comprises: A first partition (21) is disposed in the accommodating chamber and is configured to separate the cutoff mechanism (3) from both the AC conductive member (11) and the DC conductive member (12).

12. The circuit breaker device (100) according to claim 10, characterized in that The circuit breaker device (100) further comprises: An arc extinguishing medium (4) is disposed in the accommodating cavity, and the arc extinguishing medium (4) is configured to extinguish an arc generated after the AC conductive member (11) and the DC conductive member (12) are cut off.

13. The circuit breaker device (100) according to claim 12, characterized in that: The circuit breaker device (100) further comprises: A second partition (22) is arranged in the accommodating cavity and is located on a side of the AC conductive member (11) and the DC conductive member (12) that is away from the disconnection mechanism (3), and is enclosed with the housing (2) to form an arc extinguishing chamber, wherein the arc extinguishing medium (4) is arranged in the arc extinguishing chamber.

14. The circuit breaker device (100) according to claim 12, characterized in that The circuit breaker device (100) further comprises: An arc extinguishing structure (13) is provided on the AC conductive member (11) and the DC conductive member (12), and is configured to guide an arc generated after the AC conductive member (11) and the DC conductive member (12) are cut off to the arc extinguishing medium (4).

15. The circuit breaker device (100) according to claim 14, characterized in that The arc extinguishing structure (13) is an arc extinguishing fuse, and both ends of the arc extinguishing fuse arranged on the AC conductive member (11) are connected to the first weak portion (111), and / or both ends of the arc extinguishing fuse arranged on the DC conductive member (12) are connected to the second weak portion (121).

16. The circuit breaker device (100) according to claim 15, characterized in that The side of the arc-extinguishing fuse away from the AC conductive part (11) or the DC conductive part (12) is located in the arc-extinguishing medium (4).

17. The circuit breaker device (100) according to any one of claims 10 to 16, characterized in that: The housing (2) comprises a main body (23) and an end plate (24) connected to each other, wherein the end plate (24) is arranged at an end of the main body (23) away from the cutting mechanism (3), and the circuit breaker device (100) further comprises a reinforcement member (5), wherein the reinforcement member (5) is configured to connect the main body (23) and the end plate (24).

18. The circuit breaker device (100) according to claim 17, characterized in that One end of the reinforcement (5) is arranged on a side of the end plate (24) away from the cutting mechanism (3), and the other end passes through the end plate (24) and is connected to the inner end wall of the body (23) close to the cutting mechanism (3).

19. The circuit breaker device (100) according to claim 17 or 18, characterized in that: The reinforcement member (5) is arranged at the connection between adjacent side walls of the body (23).

20. The circuit breaker device (100) according to any one of claims 10 to 16, characterized in that: The circuit breaker device (100) further comprises: a detector (6), disposed outside the housing (2), connected to the disconnection mechanism (3), the AC circuit, and the DC circuit, configured to detect the current and / or voltage of the DC circuit, and trigger the disconnection mechanism (3) when the current is less than a first preset threshold value and / or the voltage is less than a second preset threshold value, so that the disconnection mechanism (3) disconnects the AC conductive member (11) and the DC conductive member (12); and / or, The device is configured to detect the current and / or voltage of the AC circuit, and trigger the disconnection mechanism (3) when the current is less than a third preset threshold value and / or the voltage is less than a fourth preset threshold value, so that the disconnection mechanism (3) disconnects the AC conductive member (11) and the DC conductive member (12).

21. The circuit breaker device (100) according to claim 20, characterized in that The circuit breaker (100) is configured to be connected to a drive motor controller, and the detector (6) is configured to be connected to the drive motor controller.

22. The circuit breaker device (100) according to claim 21, characterized in that The detector (6) is configured to detect the state of the bridge arm of the drive motor controller, and when the state of the bridge arm of the drive motor controller is abnormal, trigger the disconnection mechanism (3), so that the disconnection mechanism (3) disconnects the AC conductive member (11) and the DC conductive member (12).

23. The circuit breaker device (100) according to claim 2 or 3, characterized in that: The circuit breaker (100) is configured to be connected to a drive motor and a drive motor controller, and the first AC conductive member (113) and the second AC conductive member (114) are both configured to be connected between the drive motor and the drive motor controller.

24. The circuit breaker device (100) according to any one of claims 1 to 16, characterized in that: The circuit breaker (100) is configured to be connected to a battery pack and a power domain controller, and the DC conductive element (12) is configured to be connected between the battery pack and the power domain controller.

25. A wiring device, characterized in that: include: The circuit breaker device (100) according to any one of claims 1 to 24; and The connecting structure (200) is connected to the circuit breaker device (100).

26. The wiring device according to claim 25, characterized in that The connection structure (200) comprises a first copper bar (8) and a second copper bar (9), wherein the first copper bar (8) is configured to be connected to the AC conductive member (11) via the AC circuit, and the second copper bar (9) is configured to be connected to the DC conductive member (12) via the DC circuit.

27. The wiring device according to claim 25, characterized in that The connection structure (200) further comprises a mounting seat (71), and the circuit breaker device (100) is mounted on the mounting seat (71).

28. The wiring device according to claim 27, characterized in that The second copper busbar (9) is further configured to be connected to the mounting base (71) so that the circuit breaker device (100) is connected to the mounting base (71).

29. The wiring device according to claim 28, characterized in that The first copper bar (8) comprises a first AC copper bar (81) and a second AC copper bar (82), wherein the first AC copper bar (81) is connected to a first AC conductive member (113) of the circuit breaker device (100), and the second AC copper bar (82) is connected to a second AC conductive member (114) of the circuit breaker device (100).

30. The wiring device according to claim 29, wherein: The first copper busbar (8) further comprises a first connecting copper busbar (83), wherein the first connecting copper busbar (83) is connected to the mounting base (71) so that the circuit breaker device (100) is connected to the mounting base (71); and / or, The first copper busbar (8) further includes a second connecting copper busbar (84), and the second connecting copper busbar (84) is configured to be connected to the mounting seat (71) so that the circuit breaker device (100) is connected to the mounting seat (71).

31. The wiring device according to claim 29, wherein: The circuit breaker device (100) is configured to be connected to a drive motor and a drive motor controller; The first AC copper busbar (81) and the second AC copper busbar (82) are both configured to connect the drive motor and the drive motor controller.

32. The wiring device according to claim 31, wherein: The first AC copper busbar (81) comprises a first AC input copper busbar (811) and a first AC output copper busbar (812), wherein the first AC input copper busbar (811) is configured to have one end connected to the first AC conductive member (113) and the other end connected to the drive motor controller, and the first AC output copper busbar (812) is configured to have one end connected to the first AC conductive member (113) and the other end connected to the drive motor; The second AC copper busbar (82) comprises a second AC input copper busbar (821) and a second AC output copper busbar (822), wherein the second AC input copper busbar (821) is configured to have one end connected to the second AC conductive member (114) and the other end connected to the drive motor controller, and the second AC output copper busbar (822) is configured to have one end connected to the second AC conductive member (114) and the other end connected to the drive motor.

33. The wiring device according to claim 31, wherein: The connection structure (200) further comprises a housing (7), the housing (7) having the mounting seat (71), and the first AC copper busbar (81) and the second AC copper busbar (82) are both connected to the housing (7).

34. The wiring device according to claim 33, wherein: The connection structure (200) further includes a third AC copper busbar (85), and the third AC copper busbar (85) is configured to be at most partially covered by the housing (7).

35. The wiring device according to claim 34, wherein: The third AC copper busbar (85) comprises a third AC input copper busbar (851), and the third AC input copper busbar (851) is configured to be connected to the drive motor controller; And / or, the third AC copper busbar (85) further includes a third AC output copper busbar (852) connected to the third AC input copper busbar (851), and the third AC output copper busbar (852) is configured to be connected to the drive motor.

36. The wiring device according to claim 34, wherein: At least one sub-connection point (10) is provided on the input end of the first AC copper busbar (81), and / or at least one sub-connection point (10) is provided on the input end of the second AC copper busbar (82), and / or at least one sub-connection point (10) is provided on the input end of the third AC copper busbar (85), and the sub-connection point (10) is configured to be connected to a backup circuit module.

37. The wiring device according to claim 36, characterized in that The first AC copper busbar (81) is a U-phase connecting copper busbar, and the second AC copper busbar (82) is a V-phase connecting copper busbar.

38. The wiring device according to claim 33, wherein: The circuit breaker device (100) is configured to be connected to a generator and a generator controller. The wiring device further comprises a third copper busbar (20). The third copper busbar (20) is configured to be connected to the generator and the generator controller.

39. The wiring device according to claim 38, wherein: The third copper bar (20) comprises a third U-phase copper bar (201), a third V-phase copper bar (202) and a third W-phase copper bar (203).

40. The wiring device according to claim 39, wherein: The third U-phase copper bar (201), the third V-phase copper bar (202), and the third W-phase copper bar (203) are configured to be at most partially covered by the housing (7).

41. The wiring device according to claim 26, wherein: The cross-sectional area of the first copper busbar (8) is greater than the cross-sectional area of the AC conductive member (11); and / or the cross-sectional area of the second copper busbar (9) is greater than the cross-sectional area of the DC conductive member (12).

42. A vehicle, characterized in that: It comprises the circuit breaker device (100) according to any one of claims 1 to 24, or the wiring device according to any one of claims 25 to 41.

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