Excitation breaker for three-phase circuit protection

Abstract

The invention provides an excitation breaker for three-phase circuit protection. The excitation breaker comprises a shell, a breaking assembly and at least two conductor layers. The breaking assembly comprises a power part, a transmission part and a breaking part; a first opening is formed in the shell, and the power component is arranged in the first opening to shield the first opening; the positions of the at least two conductor layers in the third direction are different; the breaking component is provided with at least two clamping cavities. The at least two conductor layers penetrate through the at least two clamping cavities in a one-to-one correspondence manner, so that each conductor layer in the at least two conductor layers and the breaking component are mutually fixed; when abnormal current is generated on the at least two conductor layers, the power part provides impact force for the transmission part so that the transmission part can impact the breaking part, and the breaking part breaks the at least two conductor layers after being subjected to the impact force so as to cut off power supply of the electronic circuit. Therefore, the transverse space of the excitation interrupter is reduced, and the size of the excitation interrupter is further reduced.

Description

Technical Field

[0001] This application belongs to the technical field of emergency protection devices, and particularly relates to an excitation interruptor for three-phase circuit protection. Background Art

[0002] Three-phase motors are common power drive devices in new energy vehicles. The three-phase circuit provides a power source for the motor, enabling the vehicle to drive normally. To protect the safe operation of the three-phase motor, when the short-circuit current is very large, the power supply should be quickly cut off. The most common method is to connect a fuse in series in the circuit.

[0003] In the prior art, excitation fuses are generally used in new energy vehicles for circuit protection. When faults such as short circuit, increased load, locked rotor, or missing phase occur in the three-phase motor, a large current will flow through the fuse to the motor. Without a fuse, the large current directly flows into the motor, and the motor will be damaged; with a fuse, the large current first flows through the fuse, and the fuse will melt due to heat and actuate, cutting off the power supply of the AC contactor excitation coil, causing the contactor contacts to disconnect, thus cutting off the motor power supply and the motor stops running, thereby protecting the safety of the motor.

[0004] However, there are many components inside the existing excitation fuses, resulting in large sizes of the excitation fuses and making it difficult to adapt to different application scenarios. Summary of the Invention

[0005] This application provides an excitation interruptor for three-phase circuit protection in order to reduce the volume of the excitation interruptor.

[0006] This application provides an excitation interruptor for three-phase circuit protection, which is applied to an electronic circuit; the excitation interruptor includes a housing, an interruption assembly, and at least two conductor layers; The interruption assembly includes a power component, a transmission component, and a breaking component; a first opening is formed on the housing, and the power component is arranged in the first opening to block the first opening; Wherein, the positions of the at least two conductor layers are different in the third direction; At least two clamping cavities are arranged on the breaking component; the at least two conductor layers pass through the at least two clamping cavities in a one-to-one correspondence, so that each conductor layer in the at least two conductor layers is fixed to the breaking component; When abnormal current occurs on the at least two conductor layers, the power component provides an impact force to the transmission component, so that the transmission component impacts the breaking component, and after the breaking component receives the impact force, it breaks the at least two conductor layers to cut off the power supply of the electronic circuit.

[0007] In a possible embodiment, the at least two clamping cavities include a first clamping cavity and a second clamping cavity; the at least two conductor layers include a first conductor layer and a second conductor layer; the breaking component includes a first clamping member, a first sub-clamping member and a second sub-clamping member; a first clamping portion is provided on the first sub-clamping member, and a second clamping portion is provided on the second sub-clamping member; the first clamping member includes a first substrate, a third sub-clamping member extending from the first end of the first end face of the first substrate in a direction away from the first end face by a first length, and a fourth sub-clamping member extending from the second end of the first end face of the first substrate in a direction away from the first end face by a second length; a third clamping portion is provided at the end of the third sub-clamping member away from the first end face, and a fourth clamping portion is provided at the end of the fourth sub-clamping member away from the first end face; wherein, the third sub-clamping member extends to the position of the first conductor layer, the fourth sub-clamping member extends to the position of the second conductor layer, and the first length is less than the second length; the first clamping portion and the third clamping portion are combined to form a first clamping cavity, and the first conductor layer passes through the first clamping cavity to fix the first conductor in the first clamping cavity; the second clamping portion and the fourth clamping portion are combined to form a second clamping cavity, and the second conductor layer passes through the second clamping cavity to fix the second conductor in the second clamping cavity.

[0008] In a possible embodiment, the at least two clamping cavities include a first clamping cavity and a second clamping cavity; the at least two conductor layers include a first conductor layer and a second conductor layer; the breaking component includes a first sub-clamping member, a second sub-clamping member, a third sub-clamping member and a fourth sub-clamping member; the first sub-clamping member and the second sub-clamping member are arranged below the transfer component; a first clamping portion is provided on the first sub-clamping member, and a second clamping portion is provided on the second sub-clamping member; the length of the third sub-clamping member is a first length, and the length of the fourth sub-clamping member is a second length; a third clamping portion is provided at the first end of the third sub-clamping member, and a fourth clamping portion is provided at the second end of the fourth sub-clamping member; wherein, the first end of the third sub-clamping member is arranged at the position of the first conductor layer, the second end of the fourth sub-clamping member is arranged at the position of the second conductor layer, and the first length is less than the second length; the first clamping portion and the third clamping portion are combined to form a first clamping cavity, and the first conductor layer passes through the first clamping cavity to fix the first conductor in the first clamping cavity; the second clamping portion and the fourth clamping portion are combined to form a second clamping cavity, and the second conductor layer passes through the second clamping cavity to fix the second conductor in the second clamping cavity.

[0009] In a possible embodiment, the first conductor layer includes a first conductor, and the second conductor layer includes a second conductor; the projections of the first conductor and the second conductor in the third direction have an overlapping portion; a first groove is formed by the inward concavity of the first lateral center of the first conductor, a second groove is formed by the inward concavity of the second lateral middle of the first conductor, and a first pre-fracture portion is formed between the first groove and the second groove; a third groove is formed by the inward concavity of the first lateral center of the second conductor, a fourth groove is formed by the inward concavity of the second lateral middle of the second conductor, and a second pre-fracture portion is formed between the third groove and the fourth groove; the first sub-clamping member and the third sub-clamping member are clamped on the first pre-fracture portion by combining with the first groove and the second groove, and the second sub-clamping member and the fourth sub-clamping member are clamped on the second pre-fracture portion by combining with the third groove and the fourth groove.

[0010] In a possible embodiment, the at least two clamping cavities include a first clamping cavity and a second clamping cavity; the at least two conductor layers include a first conductor layer and a second conductor layer; the breaking component includes a first clamping member; the first clamping member includes a first substrate, a third sub-clamping member extending a first length from the first end of the first end face of the first substrate in a direction away from the first end face, and a fourth sub-clamping member extending a second length from the second end of the first end face of the first substrate in a direction away from the first end face; a third clamping portion is provided at the end of the third sub-clamping member away from the first end face, and a fourth clamping portion is provided at the end of the fourth sub-clamping member away from the first end face; the first clamping cavity is provided on the third clamping portion, the first clamping cavity is a through cavity, and a fifth groove is formed by removing the side wall of the first clamping cavity in the first direction; the second clamping cavity is provided on the fourth clamping portion, the second clamping cavity is a through cavity, and a sixth groove is formed by removing the side wall of the second clamping cavity in the second direction; the fifth groove is used for clamping the first conductor, and the sixth groove is used for clamping the second conductor; wherein, the first end of the third sub-clamping member is arranged at the position of the first conductor layer, the second end of the fourth sub-clamping member is arranged at the position of the second conductor layer, the first length is less than the second length; the angles between the first direction and the second direction and the gravity direction are greater than or equal to 90 degrees.

[0011] In a possible embodiment, the first conductor layer includes a first conductor, and the second conductor layer includes a second conductor; there is an overlapping portion in the projections of the first conductor and the second conductor in the third direction; the first lateral center of the first conductor is recessed to form a seventh groove to form a first pre-breaking portion; the second lateral center of the second conductor is recessed to form an eighth groove to form a second pre-breaking portion; the third clamping portion is combined with the seventh groove through the fifth groove to be clamped on the first pre-breaking portion; the fourth clamping portion is combined with the eighth groove through the sixth groove to be clamped on the second pre-breaking portion.

[0012] In a possible embodiment, a side of the transmission component close to the power component is recessed toward a side away from the power component to form a first buffer space, and the first buffer space is used to provide a buffer when the power component is triggered to release high-pressure gas.

[0013] In a possible embodiment, it also includes at least two sealed cavities and at least two melts, and the interiors of the at least two sealed cavities are filled with arc extinguishing medium; the at least one melt passes through the at least two sealed cavities one by one, and the two ends of each melt are respectively connected to the first conductor layer and the second conductor layer.

[0014] In a possible embodiment, the at least two sealed cavities include a first sealed cavity and a second sealed cavity; the at least two melts include a first melt and a second melt; a sliding cavity is provided in the shell, the first end of the sliding cavity is connected to the first opening, the transfer component and the disconnecting component are sequentially arranged at one end of the sliding cavity, and the first sealed cavity and the second sealed cavity are sequentially stacked at the bottom of the second end of the sliding cavity; wherein the first sealed cavity is close to the third clamping portion so that the first melt is connected to the first conductor; the second sealed cavity is close to the fourth clamping portion so that the second melt is connected to the second conductor; a ninth groove is formed between the third sub-clamping member and the fourth sub-clamping member; when the disconnecting component slides from the first end of the sliding cavity to the second end of the sliding cavity, the sealed cavity is embedded in the ninth groove.

[0015] In a possible embodiment, the second groove of the first conductor and the fourth groove of the second conductor are two grooves with opposite opening directions; the projection of the second groove in the third direction and the projection of the fourth groove in the third direction form an accommodating cavity; when the dividing component slides from the first end of the sliding cavity to the second end of the sliding cavity, the sealing cavity body passes through the accommodating cavity and is embedded in the ninth groove.

[0016] It can be seen that the excitation breaker for three-phase circuit protection in this application is applied to an electronic circuit. Among them, the excitation breaker includes a housing, a breaking component, and at least two conductor layers. The breaking component includes a power component, a transmission component, and a breaking component. A first opening is provided on the housing, and the power component is arranged in the first opening to block the first opening. Among them, the positions of at least two conductor layers in the third direction are different. At least two clamping cavities are provided on the breaking component. At least two conductor layers pass through at least two clamping cavities in one-to-one correspondence, so that each conductor layer among at least two conductor layers is fixed to the breaking component. When an abnormal current is generated and triggered on at least two conductor layers, the power component provides an impact force to the transmission component, so that the transmission component impacts the breaking component. After the breaking component receives the impact force, it breaks at least two conductor layers to cut off the power supply of the electronic circuit. In this way, the connection terminals connecting the excitation breaker to the external three-phase circuit are set to at least two layers and stacked to make full use of the longitudinal space of the excitation breaker, thereby reducing the lateral space of the excitation breaker and further reducing the volume of the excitation breaker. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of the first excitation breaker provided by an embodiment of the present application; Figure 2 It is a schematic structural diagram of the second excitation breaker provided by an embodiment of the present application; Figure 3 It is a schematic structural diagram of the first clamping member provided by an embodiment of the present application; Figure 4 It is a schematic structural diagram of the first conductor and the second conductor provided by an embodiment of the present application; Figure 5 It is a schematic structural diagram of the first fuse element and the second fuse element provided by an embodiment of the present application; Figure 6 It is a schematic structural diagram of the third excitation breaker provided by an embodiment of the present application; Figure 7 It is a schematic structural diagram of the fourth excitation breaker provided by an embodiment of the present application; Figure 8 It is a schematic structural diagram of the fifth excitation breaker provided by an embodiment of the present application; Figure 9It is a schematic structural diagram of a breaking component provided by an embodiment of the present application; Figure 10 It is a schematic structural diagram of the second first clamping member provided by an embodiment of the present application. Detailed implementation manners

[0019] In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present application.

[0020] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, systems, products or devices.

[0021] Referring to "embodiment" herein means that a specific feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0022] The relevant terms related to the present application will be introduced below.

[0023] An excitation fuse / excitation breaker refers to a fuse that uses an electrical signal to trigger an excitation device and release stored energy to achieve a circuit protection action. During normal operation, current passes through the current-carrying busbar. The current-carrying busbar has a small resistance and strong ability to withstand impact current. When an overload, short-circuit fault occurs in the circuit or a small multiple continuous overload fault current appears, the external control sends a firing signal to the igniter of the excitation fuse, triggering the excitation device to release the stored energy, causing the fuse element to quickly open and cut off the short-circuit current, thereby achieving circuit protection.

[0024] At present, three-phase motors are common power drive devices in new energy vehicles. The three-phase circuit provides a power source for the motor, enabling the vehicle to drive normally. If we want to protect the safe operation of the three-phase motor, when the short-circuit current is very large, the power supply should be quickly cut off. The most common method is to connect a fuse in series in the circuit.

[0025] In the prior art, an excitation fuse is generally used in new energy vehicles for circuit protection. When faults such as short circuit, increased load, blocked rotation, or missing one phase occur in the three-phase motor, a large current will flow through the fuse to the motor. Without a fuse, the large current will directly flow into the motor, and the motor will be damaged, etc. When there is a fuse, the large current first flows through the fuse, and the fuse will melt due to heat and act, cutting off the power supply of the excitation coil of the AC contactor, causing the contactor contacts to disconnect, thus cutting off the power supply of the motor and stopping the motor from running, thereby protecting the safety of the motor.

[0026] However, there are many components inside the existing excitation fuse, resulting in a large size of the excitation fuse, making it difficult to adapt to different application scenarios.

[0027] To solve the above problems, the embodiments of the present application provide an excitation breaker for three-phase circuit protection. The excitation breaker for three-phase circuit protection can be applied to scenarios where an abnormally large current is generated in the circuit. By setting a housing, a breaking component, and at least two conductor layers in the excitation breaker; the breaking component includes a power component, a transmission component, and a breaking component; a first opening is provided on the housing, and the power component is arranged in the first opening to block the first opening; wherein, the positions of at least two conductor layers in the third direction are different; at least two clamping cavities are provided on the breaking component; at least two conductor layers pass through at least two clamping cavities in a one-to-one correspondence, so that each conductor layer in at least two conductor layers is fixed to the breaking component; when an abnormal current is triggered on at least two conductor layers, the power component provides an impact force to the transmission component, so that the transmission component impacts the breaking component, and after the breaking component receives the impact force, it breaks at least two conductor layers to cut off the power supply of the electronic circuit. In this way, the connection terminals connecting the excitation breaker to the external three-phase circuit are set to at least two layers, and are stacked to make full use of the longitudinal space of the excitation breaker, thereby reducing the lateral space of the excitation breaker, and further reducing the volume of the excitation breaker. This solution can be applied to a variety of scenarios, including but not limited to the application scenarios mentioned above.

[0028] The specific structure of the excitation breaker will be introduced in detail below.

[0029] Please refer to Figure 1 、 Figure 2 and Figures 6 - 8, the present application also provides an excitation breaker for three-phase circuit protection, which is applied to an electronic circuit; the excitation breaker includes a housing 10, a breaking component, and at least two conductor layers; The breaking component includes a power component 20, a transmission component 30, and a breaking component 40; a first opening is formed on the housing 10, and the power component 20 is disposed in the first opening to block the first opening; Wherein, the positions of the at least two conductor layers are different in the third direction; At least two clamping cavities are provided on the breaking component 40; the at least two conductor layers pass through the at least two clamping cavities in a one-to-one correspondence, so that each conductor layer in the at least two conductor layers is fixed to the breaking component 40; When abnormal current is generated on the at least two conductor layers, the power component 20 provides an impact force to the transmission component 30, so that the transmission component 30 impacts the breaking component 40, and after the breaking component 40 is subjected to the impact force, the at least two conductor layers are pulled off to cut off the power supply of the electronic circuit.

[0030] In a specific implementation, the breaking component includes a power component 20, a transmission component 30, and a breaking component 40, wherein the power component 20 can be an excitation source or other components that can stimulate the transmission component 30; wherein the transmission component 30 can be components such as a piston and an impact member; wherein the breaking component 40 can be a clamping structure.

[0031] Specifically, a first opening is formed on the housing 10, and a sliding cavity 90 is provided inside the housing 10, and the first opening is communicated with the sliding cavity 90. In this embodiment, by disposing the power component 20 at the first opening and covering the first opening with the power component 20, when the power component 20 is triggered, the high-pressure gas generated by the power component 20 can be ejected into the sliding cavity 90 and prevent the high-pressure gas from leaking from the first opening.

[0032] At the same time, in this embodiment, in order to avoid increasing the volume of the excitation breaker due to the conductor and the breaking component 40, the sizes of the transmission component 30 and the breaking component 40 and the required stroke of the breaking component 40 are designed first in this embodiment, and then a sliding cavity 90 with a preset size is obtained. In the space of the set sliding cavity 90, the conductors are layered to form at least two conductor layers and are overlapped in the third direction, so that the space of the sliding cavity 90 in the third direction can be fully utilized, and at the same time, the lateral space of the sliding cavity 90 is reduced.

[0033] Furthermore, a transmission component 30 is disposed below the first opening and the power component 20. The size of the transmission component 30 is slightly larger than the inner cross-section of the housing 10, so that the transmission component 30 can be stuck on the inner wall of the housing 10 by friction. It can be understood that in order to avoid excessive friction between the transmission component 30 and the inner wall of the housing 10, the size of the transmission component 30 should not be too large, and only needs to make the friction force just larger than the gravity or the sliding force of the transmission component 30 towards the bottom of the sliding cavity 90, or slightly larger; for example, the difference between the friction force and the gravity or the sliding force is 1-10 N (Newton).

[0034] It can be understood that the housing 10 and the interrupting component can be injection-molded from high-temperature resistant engineering plastics.

[0035] It can be seen that the excitation interrupter for three-phase circuit protection in the present application is applied to an electronic circuit; wherein, the excitation interrupter includes a housing 10, an interrupting component, and at least two conductor layers; the interrupting component includes a power component 20, a transmission component 30, and a breaking component 40; a first opening is formed on the housing 10, and the power component 20 is disposed in the first opening to block the first opening; wherein, the positions of the at least two conductor layers in the third direction are different; at least two clamping cavities are provided on the breaking component 40; the at least two conductor layers pass through the at least two clamping cavities in one-to-one correspondence, so that each conductor layer in the at least two conductor layers is fixed to the breaking component 40; when an abnormal current is generated on the at least two conductor layers and triggers, the power component 20 provides an impact force to the transmission component 30, so that the transmission component 30 impacts the breaking component 40, and after the breaking component 40 receives the impact force, the at least two conductor layers are pulled and broken to cut off the power supply of the electronic circuit. In this way, the connection terminals connected to the external three-phase circuit in the excitation interrupter are set to at least two layers, and are stacked to make full use of the longitudinal space of the excitation interrupter, thereby reducing the lateral space of the excitation interrupter, and further reducing the volume of the excitation interrupter.

[0036] Embodiment 1 In a possible embodiment, please refer to Figure 4 together. The first conductor layer includes a first conductor 51, and the second conductor layer includes a second conductor 52; there is an overlapping part in the projection of the first conductor 51 and the second conductor 52 in the third direction; A first groove 511 is formed by inwards concaving the first lateral center of the first conductor 51, a second groove 512 is formed by inwards concaving the second lateral middle of the first conductor 51, and a first pre-fracture part 513 is formed between the first groove 511 and the second groove 512; The first lateral center of the second conductor 52 is concaved inward to form a third groove 522, and the second lateral middle of the second conductor 52 is concaved inward to form a fourth groove 521. A second pre-fracture portion 523 is formed between the third groove 522 and the fourth groove 521; The first sub-clamping member 41 and the third sub-clamping member 44 are clamped on the first pre-fracture portion 513 by combining with the first groove 511 and the second groove 512, and the second sub-clamping member 42 and the fourth sub-clamping member 45 are clamped on the second pre-fracture portion 523 by combining with the third groove 522 and the fourth groove 521.

[0037] In a specific implementation, the first conductor 51 is provided with a first groove 511 and a second groove 512. The opening directions of the first groove 511 and the second groove 512 are opposite. The first groove 511 and the second groove 512 can not only provide a clamping space for the breaking component 40, but also limit the breaking component 40. In addition, the groove wall of the first groove 511 extends in the opening direction of the first groove 511 to be combined with the housing 10, so that the conductor can be fixed in the housing 10. The second conductor 52 is provided with a third groove 522 and a fourth groove 521. The opening directions of the third groove 522 and the fourth groove 521 are opposite. The third groove 522 and the fourth groove 521 can not only provide a clamping space for the breaking component 40, but also limit the breaking component 40. In addition, the groove wall of the third groove 522 extends in the opening direction of the third groove 522 to be combined with the housing 10, so that the conductor can be fixed in the housing 10.

[0038] In a possible embodiment, please refer to Figures 1 - 3 , the at least two clamping cavities include a first clamping cavity and a second clamping cavity; the at least two conductor layers include a first conductor layer and a second conductor layer; the breaking component 40 includes a first clamping member, a first sub-clamping member 41 and a second sub-clamping member 42; The first sub-clamping member 41 is provided with a first clamping portion, and the second sub-clamping member 42 is provided with a second clamping portion; The first clamping member includes a first substrate 43, a third sub-clamping member 44 extending from the first end of the first end face of the first substrate 43 in a direction away from the first end face by a first length, and a fourth sub-clamping member 45 extending from the second end of the first end face of the first substrate 43 in a direction away from the first end face by a second length; a third clamping portion 441 is provided at the end of the third sub-clamping member 44 away from the first end face, and a fourth clamping portion 451 is provided at the end of the fourth sub-clamping member 45 away from the first end face; Wherein, the third sub-clamping member 44 extends to the position of the first conductor layer, the fourth sub-clamping member 45 extends to the position of the second conductor layer, and the first length is less than the second length; The first clamping portion and the third clamping portion 441 are combined to form a first clamping cavity, and the first conductor layer passes through the first clamping cavity to fix the first conductor 51 in the first clamping cavity; The second clamping portion and the fourth clamping portion 451 are combined to form a second clamping cavity, and the second conductor layer passes through the second clamping cavity to fix the second conductor 52 in the second clamping cavity.

[0039] In a specific implementation, the first clamping member, the first sub-clamping member 41 and the second sub-clamping member 42 are respectively manufactured, and the first clamping member and the second clamping member are combined to form a breaking component 40, so as to clamp the first conductor 51 and the second conductor 52 through the combination of the first clamping member and the second clamping member. In order to break the first conductor 51 and the second conductor 52 simultaneously, in this embodiment, a third sub-clamping member 44 and a fourth sub-clamping member 45 are extended on the first clamping member. A third clamping portion 441 is provided at one end of the third sub-clamping member 44 facing away from the first substrate 43, and the third clamping portion 441 can be a groove; at the same time, a fourth clamping portion 451 is provided at one end of the fourth sub-clamping member 45 facing away from the first substrate 43, and the fourth clamping portion 451 can be a groove; at the same time, a first clamping portion is provided on the first sub-clamping member 41, and a second clamping portion is provided on the second sub-clamping member 42, wherein the first clamping portion and the second clamping portion can also be grooves.

[0040] The combination of the two grooves of the first clamping portion and the third clamping portion 441 can form a first clamping cavity, and the first clamping cavity is a through cavity, so as to clamp the first pre-breaking portion 513 in the first clamping cavity; the combination of the two grooves of the second clamping portion and the fourth clamping portion 451 can form a second clamping cavity, and the second clamping cavity is a through cavity, so as to clamp the second pre-breaking portion 523 in the second clamping cavity. In this way, before the first pre-breaking portion 513 and the second pre-breaking portion 523 are disconnected, the acting forces such as external vibration and impact on the first pre-breaking portion 513 and the second pre-breaking portion 523 can be reduced, and after the first pre-breaking portion 513 and the second pre-breaking portion 523 are disconnected, it can ensure their balanced and accelerated descent and avoid flipping. In addition, when an arc is generated when the pre-breaking portion is disconnected, the arc will ablate the surface of the breaking component 40, and the common materials of the breaking component 40 are PA66, PA66 / PA6T, PPS, etc., which can generate arc extinguishing gas under the action of the arc, play a role in extinguishing the arc, and wrapping the pre-breaking portion can also increase the creepage distance of the conductor disconnection gap and improve the insulation strength of the product after operation.

[0041] Further, the connection between the first clamping part and the third clamping part 441, as well as between the second clamping part and the fourth clamping part 451, can be achieved by means including but not limited to snap fasteners, mortise and tenon structures, screws, glue, etc.

[0042] Further, since the first conductor 51 and the second conductor 52 are arranged in layers, in order to enable the breaking component 40 to clamp the first conductor 51 and the second conductor 52 simultaneously, the third sub-clamping member 44 in the breaking component 40 is set to a first length, and the fourth sub-clamping member 45 is set to a second length. In this way, the third clamping part 441 of the third sub-clamping member 44 can extend to the first conductor 51 to form a first clamping cavity with the first clamping part to clamp the first conductor 51; at the same time, the fourth clamping part 451 of the fourth sub-clamping member 45 can extend to the second conductor 52 to form a second clamping cavity with the second clamping part to clamp the second conductor 52.

[0043] Embodiment 2 In a possible embodiment, please refer to Figure 1 、 Figure 2 and Figure 9 , the first conductor layer includes a first conductor 51, and the second conductor layer includes a second conductor 52; there is an overlapping part in the projection of the first conductor 51 and the second conductor 52 in the third direction; The first lateral center of the first conductor 51 is recessed to form a first groove 511, and the second lateral middle of the first conductor 51 is recessed to form a second groove 512, and a first pre-fracture part 513 is formed between the first groove 511 and the second groove 512; The first lateral center of the second conductor 52 is recessed to form a third groove 522, and the second lateral middle of the second conductor 52 is recessed to form a fourth groove 521, and a second pre-fracture part 523 is formed between the third groove 522 and the fourth groove 521; The first sub-clamping member 41 and the third sub-clamping member 44 are clamped on the first pre-fracture part 513 by combining with the first groove 511 and the second groove 512, and the second sub-clamping member 42 and the fourth sub-clamping member 45 are clamped on the second pre-fracture part 523 by combining with the third groove 522 and the fourth groove 521.

[0044] Specifically, the at least two clamping cavities include a first clamping cavity and a second clamping cavity; the at least two conductor layers include a first conductor layer and a second conductor layer; the breaking component 40 includes a first sub-clamping member 41, a second sub-clamping member 42, a third sub-clamping member 44 and a fourth sub-clamping member 45; the first sub-clamping member 41 and the second sub-clamping member 42 are arranged below the transfer component 30; The first sub-clamping member 41 is provided with a first clamping portion, and the second sub-clamping member 42 is provided with a second clamping portion; The third sub-clamping member 44 has a first length, and the fourth sub-clamping member 45 has a second length; a third clamping portion 441 is provided at a first end of the third sub-clamping member 44, and a fourth clamping portion 451 is provided at a second end of the fourth sub-clamping member 45; Wherein, the first end of the third sub-clamping member 44 is disposed at the position of the first conductor layer, the second end of the fourth sub-clamping member 45 is disposed at the position of the second conductor layer, and the first length is less than the second length; The first clamping portion and the third clamping portion 441 are combined to form a first clamping cavity, and the first conductor layer passes through the first clamping cavity to fix the first conductor 51 in the first clamping cavity; The second clamping portion and the fourth clamping portion 451 are combined to form a second clamping cavity, and the second conductor layer passes through the second clamping cavity to fix the second conductor 52 in the second clamping cavity.

[0045] In a specific implementation, compared with the first embodiment, the first substrate 43 on the first clamping member is removed in this embodiment, and only the third sub-clamping member 44 and the fourth sub-clamping member 45 are retained, that is, two separate clamping components are obtained. The third sub-clamping member 44 and the fourth sub-clamping member 45 are directly disposed below the transfer member 30. The third sub-clamping member 44 is also provided with a third clamping portion 441 at one end facing away from the transfer member 30 and close to the first conductor 51, and the fourth sub-clamping member 45 is also provided with a fourth clamping portion 451 at one end facing away from the transfer member 30 and close to the second conductor 52; moreover, the third sub-clamping member 44 is combined with the first clamping portion of the first sub-clamping member 41 through the third clamping portion 441 to form a first clamping cavity to clamp the first pre-fracture portion 513; the fourth sub-clamping member 45 is combined with the second clamping portion of the second sub-clamping member 42 through the fourth clamping portion 451 to form a second clamping cavity to clamp the first pre-fracture portion 513. In this way, when the transfer member 30 is pushed by high-pressure gas, it can directly impact the third sub-clamping member 44 and the fourth sub-clamping member 45, so that the first sub-clamping portion and the second sub-clamping portion can respectively break the first pre-fracture portion 513 and the second pre-fracture portion 523, and further break the first conductor 51 and the second conductor 52 to cut off the current on the first conductor 51 and the second conductor 52.

[0046] It can be seen that in this embodiment, before the pre-fracture part breaks, the separated third sub-clamping member 44 and fourth sub-clamping member 45 reduce the acting force of external vibration impact on the pre-fracture part, and after the pre-fracture part breaks, they can ensure its balanced and accelerated descent and avoid the effect of flipping. In addition, when an arc is generated when the pre-fracture part breaks, the arc will ablate the surface of the breaking component 40. The common materials of the breaking component 40 are PA66, PA66 / PA6T, PPS, etc., which can generate arc extinguishing gas under the action of the arc, play the role of extinguishing the arc, and wrapping the pre-fracture part can also increase the creepage distance of the conductor disconnection gap and improve the insulation strength after the product operates.

[0047] Embodiment 3 In a possible embodiment, please refer to Figure 1 、 Figure 2 and Figure 10 together. The at least two clamping cavities include a first clamping cavity and a second clamping cavity; the at least two conductor layers include a first conductor layer and a second conductor layer; the breaking component 40 includes a first clamping member; the first clamping member includes a first substrate 43, a third sub-clamping member 44 extending a first length from the first end of the first end face of the first substrate 43 in a direction away from the first end face, and a fourth sub-clamping member 45 extending a second length from the second end of the first end face of the first substrate 43 in a direction away from the first end face; a third clamping portion 441 is provided at the end of the third sub-clamping member 44 away from the first end face, and a fourth clamping portion 451 is provided at the end of the fourth sub-clamping member 45 away from the first end face; the first clamping cavity is provided on the third clamping portion 441, the first clamping cavity is a through cavity, and the side wall in the first direction of the first clamping cavity is removed to form a fifth groove; the second clamping cavity is provided on the fourth clamping portion 451, the second clamping cavity is a through cavity, and the side wall in the second direction of the second clamping cavity is removed to form a sixth groove; the fifth groove is used to clamp the first conductor 51, and the sixth groove is used to clamp the second conductor 52; wherein, the first end of the third sub-clamping member 44 is arranged at the position of the first conductor layer, the second end of the fourth sub-clamping member 45 is arranged at the position of the second conductor layer, and the first length is less than the second length; the included angles between the first direction and the second direction and the gravity direction are greater than or equal to 90 degrees.

[0048] Specifically, the first conductor layer includes a first conductor 51, and the second conductor layer includes a second conductor 52; the projections of the first conductor 51 and the second conductor 52 in the third direction overlap; a seventh groove is formed by concave inward at the first lateral center of the first conductor 51 to form a first pre-fracture portion 513; an eighth groove is formed by concave inward at the second lateral center of the second conductor 52 to form a second pre-fracture portion 523; the third clamping portion 441 is combined with the seventh groove through the fifth groove to clamp on the first pre-fracture portion 513; the fourth clamping portion 451 is combined with the eighth groove through the sixth groove to clamp on the second pre-fracture portion 523.

[0049] In a specific implementation, compared with the first embodiment and the second embodiment, the first sub-clamping member 41 and the second sub-clamping member 42 are removed in this embodiment, and only the first clamping member is retained. At the same time, the third clamping portion 441 of the third sub-clamping member 44 and the fourth clamping portion 451 of the fourth sub-clamping member 45 in the first clamping member are improved.

[0050] Specifically, the third clamping portion 441 is provided to include a fifth groove, and the opening direction of the fifth groove is perpendicular to the gravity direction and faces the fourth sub-clamping member 45, so that the first pre-fracture portion 513 can be clamped only by the combination of the fifth groove and the first groove 511. Similarly, the fourth clamping portion 451 is provided to include a sixth groove, and the opening direction of the sixth groove is perpendicular to the gravity direction and faces the third sub-clamping portion, so that the second pre-fracture portion 523 can be clamped only by the engagement of the sixth groove and the second groove 512.

[0051] It can be seen that in this embodiment, by setting the third clamping portion 441 and the fourth clamping portion 451 of the first clamping member as an integrated breaking component to clamp the first pre-fracture portion 513 and the second pre-fracture portion 523, the force of external vibration impact on the pre-fracture portion is reduced before the pre-fracture portion breaks, and after the pre-fracture portion breaks, it can ensure its balanced and accelerated descent and avoid flipping; in addition, when an arc is generated when the pre-fracture portion breaks, the arc will ablate the surface of the breaking component 40, and the common materials of the breaking component 40 are PA66, PA66 / PA6T, PPS, etc., which can generate arc extinguishing gas under the action of the arc to play the role of extinguishing the arc. Wrapping the pre-fracture portion can also increase the creepage distance of the conductor disconnection gap and improve the insulation strength of the product after the action.

[0052] The above-mentioned first embodiment, second embodiment and third embodiment are described based on the structures involved in the conductor breaking. Other embodiments will be introduced and described below.

[0053] In a possible embodiment, please continue to refer to Figure 1 、 Figure 2 andFigures 6 - 8 , at least two sealed cavities and at least two melts are further arranged in the excitation interrupter, and arc extinguishing media are filled inside the at least two sealed cavities; the at least one melt passes through the at least two sealed cavities in one-to-one correspondence, and both ends of each melt are respectively connected to the first conductor layer and the second conductor layer. The transmission component 30 and the breaking component 40 are sequentially arranged at one end of the sliding cavity 90, and the sealed cavity is arranged at the bottom of the second end of the sliding cavity 90; a ninth groove 401 is formed between the third sub-holder 44 and the fourth sub-holder 45; when the breaking component 40 slides from the first end of the sliding cavity 90 to the second end of the sliding cavity 90, the sealed cavity is embedded into the ninth groove 401.

[0054] To avoid increasing the volume of the excitation interrupter due to the sealed cavity and the breaking component 40, in this embodiment, the sizes of the transmission component 30 and the breaking component 40 and the required stroke of the breaking component 40 are first designed, and then the sliding cavity 90 with a preset size is obtained. In the space of the set sliding cavity 90, the conductors are arranged in layers to form at least two conductor layers and are overlapped in the third direction, so that the space of the sliding cavity 90 in the third direction can be fully utilized, and at the same time, the lateral space of the sliding cavity 90 can be reduced.

[0055] At the same time, corresponding notches (i.e., the first groove 511, the second groove 512, the third groove 522, and the fourth groove 521) are designed at the corresponding positions in the middle of the first conductor 51 and the second conductor 52 to form a first pre-fracture part 513 and a second pre-fracture part 523. That is, the widths of the conductors at the positions of the first pre-fracture part 513 and the second pre-fracture part 523 can, on the one hand, reduce the width of the breaking component 40, and on the other hand, reserve enough position space for the sealed cavity. The sealed cavity is designed as a cover plate structure on one side and a groove-shaped structure integrally injection-molded with the housing 10 on other sides. A structure for limiting or fixing the arc extinguishing melt is arranged inside the groove-shaped structure to avoid the shaking of the arc extinguishing melt after being installed in the sealed cavity. Since the transmission component 30 needs to have a certain stroke, the space of the sliding cavity 90 is used to place the sealed cavity, without the need to add additional controls. While increasing the sealed space and conductors, the volume of the excitation interrupter is not increased.

[0056] Further, the at least two sealed cavities include a first sealed cavity 61 and a second sealed cavity 62; the at least two melts include a first melt 81 and a second melt 82; a sliding cavity 90 is provided in the housing 10, a first end of the sliding cavity 90 communicates with the first opening, the transfer member 30 and the breaking member 40 are sequentially arranged at one end of the sliding cavity 90, and the first sealed cavity 61 and the second sealed cavity 62 are sequentially stacked at the bottom of the second end of the sliding cavity 90; wherein, the first sealed cavity 61 is close to the third clamping portion 441 so that the first melt 81 is connected to the first conductor 51; the second sealed cavity 62 is close to the fourth clamping portion 451 so that the second melt 82 is connected to the second conductor 52; a ninth groove 401 is formed between the third sub-clamping member 44 and the fourth sub-clamping member 45; when the breaking member 40 slides from the first end of the sliding cavity 90 to the second end of the sliding cavity 90, the sealed cavity is embedded in the ninth groove 401.

[0057] In specific implementation, at least one melt and at least one sealed cavity are added to the excitation breaker. In this embodiment, two melts (denoted as a first melt 81 and a second melt 82) and two sealed cavities (denoted as a first sealed cavity and a second sealed cavity) are provided according to the number of conductors (i.e., the first conductor 51 and the second conductor 52). Both ends of the first melt 81 are respectively connected to both ends of the first pre-fracture portion 513, and both ends of the second melt 82 are respectively connected to both ends of the second fracture portion; meanwhile, the first melt 81 passes through the first sealed cavity, and the second melt 82 passes through the second sealed cavity. Thus, after the first pre-fracture portion 513 and the second pre-fracture portion 523 are broken by the breaking member 40, the current on the first conductor 51 is transferred to the first melt 81, and further the first melt 81 and the second melt 82 are melted. Wherein, a first arc extinguishing medium 71 is provided in the first sealed cavity, and a second arc extinguishing medium 72 is provided in the second sealed cavity; when the first melt 81 is melted, the arc generated after the first melt 81 is melted is extinguished by the first arc extinguishing medium 71, and the arc generated after the second melt 82 is melted is extinguished by the second arc extinguishing medium 72. Wherein, the first melt 81 and the second melt 82 are designed in a square wave shape with upper and lower bends (as Figure 5 shown) to maximize the length of the arc extinguishing melt and improve the safe breaking ability of the product.

[0058] In specific implementation, a sixth opening through which the sealed cavity can pass is formed between the second groove 512 and the fourth groove 521. When the breaking member 40 breaks the first pre-fracture portion 513 and the second pre-fracture portion 523, when the breaking member 40 rushes along the sliding cavity 90 towards the bottom of the sliding cavity 90, it can be sleeved on the sealed cavity to prevent the breaking member 40 from damaging the sealed cavity.

[0059] Further, the second groove 512 of the first conductor 51 and the fourth groove 521 of the second conductor 52 are two grooves with opposite opening directions; the projection of the second groove 512 in the third direction and the projection of the fourth groove 521 in the third direction form a receiving cavity; when the breaking component 40 slides from the first end of the sliding cavity 90 to the second end of the sliding cavity 90, the sealed cavity passes through the receiving cavity and is embedded in the ninth groove 401. In this way, the second groove 512 and the fourth groove 521 formed by the first conductor 51 and the second conductor 52 to form the first pre-breaking part 513 and the second pre-breaking part 523 are further utilized to form a travel channel, so that while the breaking component 40 realizes the breaking function, the normal function of the sealed cavity is not affected.

[0060] In a possible embodiment, the side of the transmission component 30 close to the power component 20 is concave inward toward the side away from the power component 20 to form a first buffer space, and the first buffer space is used to provide buffering when the power component 20 is triggered to release high-pressure gas. At the same time, there is a second buffer space between the transmission component 30 and the breaking component 40.

[0061] In specific implementation, a buffer space is provided between the air port and the transmission component 30 in this embodiment to protect the excitation breaker. The breaking component 40 is located directly below the transmission component 30 and there is a certain gap between the breaking component 40 and the lower end surface of the transmission component 30 to provide an impact distance for the transmission component 30, reducing the impact force required to drive the breaking component 40 to move downward and disconnect the pre-breaking parts of the first conductor 51 and the second conductor 52 when the high-pressure gas generated by the detonation of MGG in the power component 20 pushes the transmission component 30 to move downward.

[0062] Further, setting the first buffer space and the second buffer space can also improve the motion accuracy and stability and achieve precise positioning: in some devices with high requirements for position accuracy, such as pneumatic clamps on automated production lines and pneumatic worktables of numerically controlled machine tools, the buffer space helps the transmission component 30 to stop more accurately when reaching the specified position, avoiding position deviations caused by inertia or impact, thereby improving the motion accuracy and positioning accuracy of the device.

[0063] Setting the first buffer space and the second buffer space can also make the transmission component 30 run smoothly. During the movement of the transmission component 30, it may be affected by various factors, such as fluctuations in air flow and changes in load, resulting in unstable movement speed. The buffer space can absorb the influence of these fluctuations and changes to a certain extent, making the movement of the transmission component 30 smoother and ensuring the normal operation of the device.

[0064] In a possible case, please continue to refer to Figure 8, the breaking component 40 abuts against the lower part of the transmission component 30. Thereby, it can prevent the breaking component 40 from being bounced up under harsh working conditions such as strong vibration during product use, and even from shifting or falling off the first conductor layer and the second conductor layer. In this case, the transmission component 30 and the breaking component 40 can also be made into an integral body. When the power component 20 is triggered to generate high-pressure gas, the high-pressure gas pushes the transmission component 30 and the breaking component 40 to move towards the extension sliding cavity simultaneously to cut the first pre-fracture part and the second pre-fracture part in the first conductor 51 and the second conductor 52.

[0065] In a possible embodiment, please continue to refer to Figure 4 , the first conductor 51 and the second conductor 52 are sheet-shaped, that is, the lengths of the first conductor 51 and the second conductor 52 in the fourth direction and the fifth direction are both greater than the length of the first conductor 51 in the third direction. Setting the first conductor 51 and the second conductor 52 as sheet-shaped makes the contact area between the first conductor 51 and the second conductor 52 and the housing 10 larger, and thus it is not easy to displace. In addition, it is easier to set pre-fracture parts on the first conductor 51 and the second conductor 52.

[0066] It can be understood that the third direction, the fourth direction, and the fifth direction described in this application are as follows: The fifth direction refers to the direction from the first end to the second end of the first conductor 51, or the direction from the second end to the first end of the first conductor 51, where the direction from the first end to the second end is positive and the direction from the second end to the first end is negative; the fourth direction can be the opening direction of the first groove or the second groove, where the opening direction of the second groove 512 is positive and the opening direction of the first groove 511 is negative; the third direction refers to the stroke direction of the transmission component 30. Specifically, the impact direction of the transmission component 30 is negative and vice versa is positive. It can be understood that here only specific components are used as references to explain each direction, and there can be other references for each direction, which will not be elaborated here. In addition, the positive and negative of each direction are only for illustrative purposes and are not limited.

[0067] In a possible embodiment, please continue to refer to Figure 4 , the opposite corner ends between the first conductor 51 and the second conductor 52 (that is, the corner ends in the opening directions of the second groove 512 and the third groove 522 respectively) are rounded corners. Such a setting can avoid the corner ends of the first conductor 51 and the second conductor 52 from bumping into each other; at the same time, it can provide a direction identifier, making it easier to distinguish the relative positions of the first conductor 51 and the second conductor 52 during production.

[0068] In a possible embodiment, please continue to refer to Figure 4, a tenth groove 5131, an eleventh groove 5132, a twelfth groove 5133 and a thirteenth groove 5134 are further provided on the first pre-fracture portion 513. The tenth groove 5131 and the eleventh groove 5132 are provided on the first end face of the first pre-fracture portion 513, and the twelfth groove 5133 and the thirteenth groove 5134 are provided on the second end face of the first pre-fracture portion 513. Wherein, the first end face and the second end face of the first pre-fracture portion 513 are two opposite faces on the first pre-fracture portion 513. A fourteenth groove 5231, a fifteenth groove 5232, a sixteenth groove 5233 and a seventeenth groove 5234 are further provided on the second pre-fracture portion 523. The fourteenth groove 5231 and the fifteenth groove 5232 are provided on the first end face of the second pre-fracture portion 523, and the sixteenth groove 5233 and the seventeenth groove 5234 are provided on the second end face of the second pre-fracture portion 523. Wherein, the first end face and the second end face of the second pre-fracture portion 523 are two opposite faces on the second pre-fracture portion 523.

[0069] In a possible embodiment, please continue to refer to Figure 4 , a fifth clamping portion is provided on the first sub-clamping member 41, and a first clamping end and a second clamping end adapted to the tenth groove 5131 and the eleventh groove 5132 are provided on the fifth clamping portion. A sixth clamping portion is provided on the second sub-clamping member 42, and a third clamping end and a fourth clamping end adapted to the fourteenth groove 5231 and the fifteenth groove 5232 are provided on the sixth clamping portion. A seventh clamping portion is provided on the third sub-clamping member 44, and a fifth clamping end and a sixth clamping end adapted to the twelfth groove 5133 and the thirteenth groove 5134 are provided on the seventh clamping portion. An eighth clamping portion is provided on the fourth sub-clamping member 45, and a seventh clamping end and an eighth clamping end adapted to the sixteenth groove 5233 and the seventeenth groove 5234 are provided on the eighth clamping portion.

[0070] In specific implementation, when the first clamping portion and the third clamping portion 441 are combined to clamp the first pre-fracture portion 513, the first clamping end and the second clamping end are respectively combined with the tenth groove 5131 and the eleventh groove 5132, so that the first clamping end and the second clamping end clamp the weak part on the first end face of the first pre-fracture portion 513; at the same time, the fifth clamping end and the sixth clamping end are respectively combined with the twelfth groove 5133 and the thirteenth groove 5134, so that the fifth clamping end and the sixth clamping end clamp the weak part on the second end face of the first pre-fracture portion 513.

[0071] When the second clamping part and the fourth clamping part 451 are combined to clamp the first pre-fracture part 513, the first clamping end and the second clamping end are respectively combined with the tenth groove 5131 and the eleventh groove 5132, so that the first clamping end and the second clamping end are clamped at the weak part of the first end face of the first pre-fracture part 513; at the same time, the fifth clamping end and the sixth clamping end are respectively combined with the twelfth groove 5133 and the thirteenth groove 5134, so that the fifth clamping end and the sixth clamping end are clamped at the weak part of the second end face of the first pre-fracture part 513.

[0072] It can be seen that in the embodiment, weak parts are respectively arranged on the first pre-fracture part 513 and the second pre-fracture part 523. On the basis of the first clamping part and the second clamping part, the weak parts of the first pre-fracture part 513 and the second pre-fracture part 523 are clamped for the second time, so that after the breaking component 40 is impacted, it is easier to break the first pre-fracture part 513 and the second pre-fracture part 523, and the breaking point is more accurate.

[0073] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions without departing from the spirit and scope of the present invention, and various modifications and changes can be made, including combinations of the above different functions and implementation steps, including software and hardware implementation methods, all within the protection scope of the present invention.

Claims

1. An excitation interrupter for three-phase circuit protection, characterized in that: Applicable to electronic circuits; the excitation interrupter comprises a housing, an interruption component and at least two conductor layers; The interrupting assembly includes a power component, a transmission component and a breaking component; a first opening is opened on the housing, and the power component is arranged in the first opening to cover the first opening; Wherein, the positions of the at least two conductor layers in the third direction are different; At least two clamping cavities are provided on the disconnecting component; the at least two conductor layers pass through the at least two clamping cavities one by one, so that each of the at least two conductor layers and the disconnecting component are fixed to each other; When abnormal current is generated on the at least two conductor layers, the power component provides impact force to the transmission component so that the transmission component hits the disconnecting component. After receiving the impact force, the disconnecting component breaks the at least two conductor layers to cut off the power supply to the electronic circuit.

2. The excitation interrupter according to claim 1, characterized in that: The at least two clamping cavities include a first clamping cavity and a second clamping cavity; the at least two conductor layers include a first conductor layer and a second conductor layer; the disconnecting component includes a first clamping piece, a first sub-clamping piece and a second sub-clamping piece; The first sub-clamping member is provided with a first clamping portion, and the second sub-clamping member is provided with a second clamping portion; The first clamping member comprises a first substrate, a third sub-clamping member extending from a first end of a first end surface of the first substrate in a direction away from the first end surface to a first length, and a fourth sub-clamping member extending from a second end of the first end surface of the first substrate in a direction away from the first end surface to a second length; a third clamping portion is provided at an end of the third sub-clamping member away from the first end surface, and a fourth clamping portion is provided at an end of the fourth sub-clamping member away from the first end surface; Wherein, the third sub-clamping member extends to the position of the first conductor layer, the fourth sub-clamping member extends to the position of the second conductor layer, and the first length is smaller than the second length; The first clamping portion and the third clamping portion are combined to form a first clamping cavity, and the first conductor layer passes through the first clamping cavity to fix the first conductor in the first clamping cavity; The second clamping portion is combined with the fourth clamping portion to form a second clamping cavity, and the second conductor layer passes through the second clamping cavity to fix the second conductor in the second clamping cavity.

3. The excitation interrupter according to claim 1, characterized in that: The at least two clamping cavities include a first clamping cavity and a second clamping cavity; the at least two conductor layers include a first conductor layer and a second conductor layer; the disconnecting component includes a first sub-clamping component, a second sub-clamping component, a third sub-clamping component and a fourth sub-clamping component; the first sub-clamping component and the second sub-clamping component are arranged below the transmission component; The first sub-clamping member is provided with a first clamping portion, and the second sub-clamping member is provided with a second clamping portion; The length of the third sub-clamping member is the first length, and the length of the fourth sub-clamping member is the second length; the first end of the third sub-clamping member is provided with a third clamping portion, and the second end of the fourth sub-clamping member is provided with a fourth clamping portion; Wherein, the first end of the third sub-clamping member is arranged at the position of the first conductor layer, the second end of the fourth sub-clamping member is arranged at the position of the second conductor layer, and the first length is smaller than the second length; The first clamping portion and the third clamping portion are combined to form a first clamping cavity, and the first conductor layer passes through the first clamping cavity to fix the first conductor in the first clamping cavity; The second clamping portion is combined with the fourth clamping portion to form a second clamping cavity, and the second conductor layer passes through the second clamping cavity to fix the second conductor in the second clamping cavity.

4. The excitation interrupter according to claim 2 or 3, characterized in that: The first conductor layer includes a first conductor, and the second conductor layer includes a second conductor; there is an overlapping portion between the projections of the first conductor and the second conductor in the third direction; The first side of the first conductor is concave inwardly to form a first groove, the second side of the first conductor is concave inwardly to form a second groove, and a first pre-breaking portion is formed between the first groove and the second groove; The first side of the second conductor is concave inwardly to form a third groove, the second side of the second conductor is concave inwardly to form a fourth groove, and a second pre-breaking portion is formed between the third groove and the fourth groove; The first sub-clamping member and the third sub-clamping member are clamped on the first pre-breaking portion by combining with the first groove and the second groove, and the second sub-clamping member and the fourth sub-clamping member are clamped on the second pre-breaking portion by combining with the third groove and the fourth groove.

5. The excitation interrupter according to claim 4, characterized in that: The at least two clamping cavities include a first clamping cavity and a second clamping cavity; the at least two conductor layers include a first conductor layer and a second conductor layer; the disconnecting component includes a first clamping member; The first clamping member comprises a first substrate, a third sub-clamping member extending from a first end of a first end surface of the first substrate in a direction away from the first end surface to a first length, and a fourth sub-clamping member extending from a second end of the first end surface of the first substrate in a direction away from the first end surface to a second length; a third clamping portion is provided at an end of the third sub-clamping member away from the first end surface, and a fourth clamping portion is provided at an end of the fourth sub-clamping member away from the first end surface; The third clamping part is provided with the first clamping cavity, which is a penetrating cavity, and the side wall of the first clamping cavity in the first direction is removed to form a fifth groove; the fourth clamping part is provided with the second clamping cavity, which is a penetrating cavity, and the side wall of the second clamping cavity in the second direction is removed to form a sixth groove; the fifth groove is used to clamp the first conductor, and the sixth groove is used to clamp the second conductor; Among them, the first end of the third sub-clamping member is arranged at the position of the first conductor layer, the second end of the fourth sub-clamping member is arranged at the position of the second conductor layer, the first length is smaller than the second length; the angle between the first direction and the second direction and the direction of gravity is greater than or equal to 90 degrees.

6. The excitation interrupter according to claim 5, characterized in that: The first conductor layer includes a first conductor, and the second conductor layer includes a second conductor; there is an overlapping portion between the projections of the first conductor and the second conductor in the third direction; The first side center of the first conductor is indented to form a seventh groove to form a first pre-breaking portion; The second side center of the second conductor is indented to form an eighth groove to form a second pre-breaking portion; The third clamping portion is combined with the seventh groove through the fifth groove to be clamped on the first pre-breaking portion; the fourth clamping portion is combined with the eighth groove through the sixth groove to be clamped on the second pre-breaking portion.

7. The excitation interrupter according to claim 1, characterized in that: The side of the transmission component close to the power component is concave toward the side away from the power component to form a first buffer space, and the first buffer space is used to provide buffering when the power component is triggered to release high-pressure gas.

8. The excitation interrupter according to claim 6, characterized in that: It also includes at least two sealed cavities and at least two melts, the interiors of the at least two sealed cavities are filled with arc extinguishing medium; the at least two conductor layers include a first conductor layer and a second conductor layer; the at least two melts pass through the at least two sealed cavities one by one, and the two ends of each melt are respectively connected to the first conductor layer and the second conductor layer.

9. The excitation interrupter according to claim 8, characterized in that: The at least two sealed cavities include a first sealed cavity and a second sealed cavity; the at least two melts include a first melt and a second melt; The housing is provided with a sliding cavity, the first end of the sliding cavity is communicated with the first opening, the transmission component and the breaking component are sequentially arranged at one end of the sliding cavity, and the first sealed cavity and the second sealed cavity are sequentially stacked at the bottom of the second end of the sliding cavity; wherein the first sealed cavity is close to the third clamping part so that the first melt is connected to the first conductor; and the second sealed cavity is close to the fourth clamping part so that the second melt is connected to the second conductor; A ninth groove is formed between the third sub-clamping member and the fourth sub-clamping member; When the separating component slides from the first end of the sliding cavity to the second end of the sliding cavity, the sealing cavity body is embedded in the ninth groove.

10. The excitation interrupter according to claim 9, characterized in that: The second groove of the first conductor and the fourth groove of the second conductor are two grooves with opposite opening directions; the projection of the second groove in the third direction and the projection of the fourth groove in the third direction form a receiving cavity; When the separating component slides from the first end of the sliding cavity to the second end of the sliding cavity, the sealing cavity body passes through the accommodating cavity and is embedded in the ninth groove.

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