Electromagnetic tripping module and switching device

Abstract

The utility model discloses an electromagnetic tripping module and a switching device, and relates to the technical field of low-voltage electrical appliances, the electromagnetic tripping module is arranged on the switching device, and the electromagnetic tripping module comprises a tripping assembly and a conductive piece. The tripping assembly is provided with an accommodating groove. The first end of the conductive piece is a wiring board, the second end of the conductive piece is a static contact, and the middle part of the conductive piece is fixedly connected in the accommodating groove. The conductive member is integrated in the tripping assembly and forms an independent module. According to the electromagnetic tripping module and the switching device provided by the invention, the structure of the electromagnetic tripping module can be simplified, and the overall assembly efficiency of the electromagnetic tripping module is improved.

Description

Technical Field

[0001] The present application relates to the technical field of low-voltage electrical appliances, and in particular to an electromagnetic trip module and a switch device. Background Art

[0002] The electromagnetic release is an electrical component that works based on the electromagnetic principle. Its main working principle is to control the opening and closing state of the switch device through the electromagnetic force. When the current passing through the switch device increases to a certain value, the electromagnetic release causes the switch device to trip quickly, thereby achieving the function of circuit protection.

[0003] In the prior art, the electromagnetic release includes a solenoid coil, a spring, a moving iron core, a static iron core, a push rod and other structures, wherein the solenoid coil is connected to a conductive plate and a static contact in a switch device through a wire so that the electromagnetic release can work normally.

[0004] However, since the electromagnetic release has many parts, it is not easy to assemble using this setting, which affects the overall assembly efficiency. Utility Model Content

[0005] The purpose of the present application is to provide an electromagnetic trip module and a switch device, which can simplify the structure of the electromagnetic trip module and improve the overall assembly efficiency of the electromagnetic trip module.

[0006] In the first aspect, an embodiment of the present application provides an electromagnetic trip module, which is arranged in a switch device, and the electromagnetic trip module includes a trip assembly and a conductive member, and the trip assembly has a receiving groove. The first end of the conductive member is a wiring board, the second end of the conductive member is a static contact, and the middle part of the conductive member is fixedly connected in the receiving groove. The conductive member is integrated in the trip assembly and forms an independent module.

[0007] Based on the above-mentioned embodiments of the present application, the conductive member formed integrally by the terminal block and the static contact has the advantages of simple structure and easy assembly. The trip assembly cooperates with the integrally formed conductive member to form an independent electromagnetic trip module, which not only reduces the number of parts and facilitates assembly, but also helps to improve the coordination stability between the conductive member and the trip assembly, so as to improve the overall stability of the electromagnetic trip module.

[0008] In an optional embodiment, an extension section is provided on a side of the trip assembly facing away from the accommodating groove, an arc striking angle is provided on the static contact, and a gap is provided between the extension section and the arc striking angle.

[0009] Based on the above-mentioned embodiments of the present application, the setting of the extension section is used to cooperate with the arc striking angle, so that the arc on the arc striking angle can continue to move along the extension section, which is conducive to the arc smoothly entering the arc extinguishing chamber of the switch device and improving the arc striking and arc extinguishing capabilities. The extension section and the arc striking angle are both set on the electromagnetic trip module, which can reduce assembly operations when assembling the switch device and improve assembly efficiency.

[0010] In an alternative embodiment, a receiving groove is formed in the extension section, and the end of the arc ignition angle extends into the receiving groove.

[0011] Based on the above embodiments of the present application, the formation of the receiving groove can accommodate the end of the arc ignition angle, further reducing the gap between the end of the arc ignition angle and the arc guiding portion of the extension section, so that the arc on the arc ignition angle can smoothly move to the extension section. Moreover, the receiving groove can position the end of the arc ignition angle, fixing the mating position between the arc ignition angle and the extension section to ensure that the arc on the arc ignition angle can accurately move to the extension section.

[0012] In an alternative embodiment, the tripping assembly includes a bracket, a yoke, a fixed shaft, and an armature. An assembly groove is provided on the bracket. The yoke is disposed in the assembly groove, and a receiving groove is provided in the yoke. A conductive member is connected in the receiving groove. The fixed shaft passes through two opposite groove walls of the assembly groove, and a torsion spring is provided on the fixed shaft. The armature is rotatably connected to the fixed shaft and is located on the side of the yoke away from the bottom of the assembly groove. The torsion spring can drive the armature away from the yoke, and the switching device further includes a latch and a trip that can be locked to each other. When the current on the conductive member reaches a preset value, the yoke adsorbs the armature to drive the latch and the trip to unlock.

[0013] Based on the above embodiments of the present application, the tripping assembly composed of the bracket, the yoke, the fixed shaft, and the armature has a small number of parts, which is beneficial to saving production and manufacturing costs. The yoke, the fixed shaft, the armature, and the conductive member are all assembled on the bracket, simplifying the assembly operation of the electromagnetic tripping module, and thus being beneficial to improving the assembly efficiency of the electromagnetic tripping module.

[0014] In an alternative embodiment, the extension section is provided on the bracket.

[0015] Based on the above embodiments of the present application, setting the extension section on the bracket can be integrally formed with the bracket without setting other connection structures, having the characteristics of simple structure and convenient manufacturing.

[0016] In an alternative embodiment, the torsion spring has a first torsion arm and a second torsion arm. The first torsion arm abuts against the bracket, and the second torsion arm abuts against the side of the armature close to the yoke. A gear position groove is provided on the bracket, and the first torsion arm can abut against the groove wall of the gear position groove.

[0017] Based on the above embodiments of the present application, the torsion spring can act as a lever between the bracket and the armature through the first torsion arm and the second torsion arm, and the armature is rotated around the fixed shaft away from the yoke by the elastic force of the torsion spring itself, so that the armature and the yoke can be kept in a disconnected state, so that the armature can be adsorbed after the yoke generates a magnetic field and drive the latch and the trip in the switching device to unlock during the movement of the armature.

[0018] In addition, the shifting groove arranged on the bracket can adjust the fixed position of the first torsion arm according to the specifications of the switching device, thereby changing the magnitude of the elastic potential energy generated by the torsion spring itself, and then changing the magnitude of the magnetic force required by the yoke when adsorbing the armature. This arrangement enables the trip assembly to have a larger range of applications, and the same switching devices of different specifications are mutually interchangeable, effectively improving the practicability of the trip assembly and reducing production costs.

[0019] In an optional embodiment, at least one shifting groove is provided, and the at least one shifting groove is provided on the same groove wall or the opposite groove wall of the assembly groove.

[0020] Based on the above-mentioned embodiments of the present application, at least one gear slot corresponds to at least one adjustment position of the first torsion arm. When two or more gear slots are provided, the torsion spring can adjust the fixed position of the first torsion arm according to the specifications of the switching device, thereby changing the magnitude of the elastic force generated by the torsion spring itself, and further changing the magnitude of the magnetic force required by the magnetic yoke when adsorbing the armature. This arrangement enables the trip assembly to have a larger range of applications, and the same switching devices of different specifications are mutually interchangeable, thereby effectively improving the practicability of the trip assembly and reducing the production cost.

[0021] In an optional embodiment, a limiting portion is provided on the bracket, and the limiting portion can abut against a side of the armature facing away from the yoke.

[0022] Based on the above-mentioned embodiments of the present application, the setting of the limit portion is used to limit the rotation range of the armature around the fixed axis, so that the armature is maintained in a position where it can be promptly adsorbed by the yoke, and the armature is prevented from rotating around the fixed axis to a position where it cannot be adsorbed by the yoke under the action of the torsion spring. It ensures that when the current on the conductive part reaches a preset value, the yoke adsorbs the armature at the moment, and the armature can move in a direction close to the yoke in time, thereby effectively improving the reliability of the trip assembly.

[0023] In an optional embodiment, the limiting portion includes an ear portion provided on the bracket, and a limiting platform provided on the ear portion, wherein the limiting platform abuts against a side of the armature facing away from the yoke.

[0024] Based on the above-mentioned embodiments of the present application, the setting of the ear can correspond to the position of the armature, so that the armature cannot exceed the range of being timely adsorbed by the yoke when rotating around the fixed axis, and the limit platform set on the ear is used to abut the side of the armature away from the yoke to prevent the armature from moving further away from the yoke.

[0025] In a second aspect, an embodiment of the present application further provides a switch device, comprising a housing and the above-mentioned electromagnetic tripping module, wherein the electromagnetic tripping module is installed in the housing.

[0026] Based on the above embodiments of the present application, the switching device with the above electromagnetic tripping module can effectively improve the assembly efficiency, and can reduce the space occupied by the electromagnetic tripping device in the housing of the switching device while ensuring that the electromagnetic tripping module can work properly. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 Structural schematic diagram of the electromagnetic tripping module provided in the embodiment of the present application assembled into a switching device.

[0029] Figure 2 View of the electromagnetic tripping module provided in the embodiment of the present application Figure 1 。

[0030] Figure 3 View of the electromagnetic tripping module provided in the embodiment of the present application Figure 2 。

[0031] Figure 4 Structural schematic diagram of the cooperation between the arcing horn and the extension section provided in the embodiment of the present application.

[0032] Figure 5 Exploded view of the electromagnetic tripping module provided in the embodiment of the present application.

[0033] Figure 6 Structural schematic diagram of the armature adsorbed by the yoke provided in the embodiment of the present application.

[0034] Figure 7 Structural schematic diagram of the torsion spring cooperating with the bracket and the armature provided in the embodiment of the present application.

[0035] Figure 8 Structural schematic diagram of the bracket provided in the embodiment of the present application.

[0036] Description of the reference numerals:

[0037] 100. Switching device; 101. Lock; 102. Trip latch; 200. Electromagnetic trip module; 1. Trip assembly; 11. Bracket; 111. Assembly groove; 112. Gear position groove; 1121. First gear position groove; 1122. Second gear position groove; 113. Limiting part; 1131. Ear part; 1132. Limiting platform; 12. Yoke; 121. Accommodating groove; 13. Fixed shaft; 131. Torsion spring; 1311. First torsion arm; 1312. Second torsion arm; 14. Armature; 141. Pushing part; 15. Extension section; 151. Body; 152. Arc guiding part; 153. Accommodating groove; 2. Conductive part; 21. Wiring board; 22. Static contact; 221. Arc leading angle. Detailed implementation manners

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, 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 some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts fall within the scope of protection of the present application.

[0040] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0041] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application. In addition, terms such as "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0042] In the description of the present application, it should also be noted that, unless otherwise clearly specified and defined, the terms "arrangement" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0043] In a traditional circuit breaker, a solenoid coil type electromagnetic release is usually adopted to realize the short - circuit protection function of the circuit breaker. Such an electromagnetic release generally includes parts such as a solenoid coil, a coil bobbin, a moving iron core, a static iron core, a push rod, and a reaction spring. When a short - circuit current passes through the circuit, the magnetic field generated on the solenoid coil is enhanced, and the magnetic field acts on the moving iron core and pushes out the push rod to realize the electromagnetic tripping function of the circuit breaker.

[0044] Due to the relatively large number of parts of such an electromagnetic release, the structure and manufacturing process are complex, the assembly operation into the circuit breaker is relatively complex, and the assembly efficiency is low. In addition, it is necessary to be electrically connected to the wiring board and the static contact inside the circuit breaker through an electrical connection structure, which further affects the overall assembly efficiency of the electromagnetic release and the overall circuit breaker.

[0045] Based on this, the embodiments of the present application provide an electromagnetic tripping module and a switching device, which can simplify the structure of the electromagnetic tripping module and improve the assembly efficiency of the electromagnetic tripping module.

[0046] In order to enable those skilled in the art to better understand the solution 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.

[0047] Please refer to Figures 1 to 3 , this embodiment provides an electromagnetic tripping module 200, which is arranged in a switching device 100. The electromagnetic tripping module 200 includes a tripping component 1 and a conductive part 2. The tripping component 1 has a receiving groove 121. The first end of the conductive part 2 is a wiring board 21, the second end of the conductive part 2 is a static contact 22, and the middle part of the conductive part 2 is fixedly connected in the receiving groove 121. The conductive part 2 is integrated into the tripping component 1 and forms an independent module.

[0048] The electromagnetic tripping module is arranged in the switching device 100. When a short - circuit current occurs in the switching device 100 and the circuit where the switching device 100 is located, the short - circuit current will flow through the conductive part 2. The conductive part 2 is installed on the tripping component 1, and the short - circuit current flowing through the conductive part 2 will act on the tripping component 1, causing the tripping component 1 to act, so that the switching device 100 trips.

[0049] The conductive member 2 is configured as a long strip plate-like structure, and the conductive member 2 of the long strip plate-like structure has two opposite ends, namely a first end and a second end. The first end is configured as a wiring board 21, and the wiring board 21 can be disposed at a position in the switch device 100 for wiring, and the wiring board 21 can be electrically connected to an external wire at this position, so that the conductive member 2 is energized.

[0050] The second end of the conductive member 2 is configured as a stationary contact 22 , which can be disposed in the switch device 100 at a position close to the moving contact, so that the stationary contact 22 and the moving contact can cooperate to realize the switching device 100 being turned on and off.

[0051] The trip assembly 1 is arranged between the wiring position of the switch device 100 and the position of the moving contact, the conductive member 2 extends from the wiring position of the switch device 100 to the position of the moving contact, and the portion between the first end and the second end of the conductive member 2 is fixedly connected to the trip assembly 1. After the moving contact contacts the static contact 22, the switch device 100 is in the on state, and when a short-circuit current passes through the switch device 100 and the short-circuit current flows through the portion of the conductive member 2 that matches the trip assembly 1, the short-circuit current causes the trip assembly 1 to operate to disconnect the switch device 100.

[0052] Based on the above-mentioned embodiment of the present application, the conductive member 2 formed integrally of the terminal block 21 and the static contact 22 has the advantages of simple structure and easy assembly. The trip assembly 1 cooperates with the integrally formed conductive member 2 to form an independent electromagnetic trip module, which not only reduces the number of parts and facilitates assembly, but also helps to improve the matching stability between the conductive member 2 and the trip assembly 1, so as to improve the overall use stability of the electromagnetic trip module.

[0053] Compared with the traditional electromagnetic release, the electromagnetic release needs to be powered on by electrically connecting the wiring part of the switching device 100 to the solenoid coil, and then electrically connected to the static contact through the solenoid coil. The integrated conductive part 2 in the embodiment of the present application reduces the operation of electrical connection between the parts, and correspondingly reduces the electrical connection welding points, which is beneficial to reducing the temperature rise on the conductive part 2, thereby reducing the overall temperature rise of the electromagnetic release module and improving the safety of use.

[0054] Reference Figure 2 and Figure 3 In some examples, an extension section 15 is provided on a side of the trip assembly 1 facing away from the accommodating groove 121 , an arc striking angle 221 is provided on the static contact 22 , and a gap is provided between the extension section 15 and the arc striking angle 221 .

[0055] Based on the above embodiments of the present application, the provision of the extension section 15 is used to cooperate with the arcing angle 221, which can enable the electric arc on the arcing angle 221 to continue to move along the extension section 15, facilitating the smooth entry of the electric arc into the arc extinguishing chamber of the switching device 100 and improving the arcing and arc extinguishing capabilities. Both the extension section 15 and the arcing angle 221 are provided on the electromagnetic tripping module, which can reduce the assembly operation and improve the assembly efficiency when assembling the switching device 100.

[0056] Moreover, there is a gap between the extension section 15 and the arcing angle 221, that is, the extension section 15 and the arcing angle 221 are not fixedly connected, effectively simplifying the assembly operation and facilitating the improvement of the assembly efficiency. Also, the gap between the extension section 15 and the arcing angle 221 can not only allow the electric arc to smoothly move from the arcing angle 221 to the extension section 15, but also prevent the formation of a conductive path after the extension section 15 and the arcing angle 221 come into contact, improving the use safety of the electromagnetic tripping module.

[0057] The arcing angle 221 is provided at the end of the static contact 22 away from the wiring board 21. The electric arc generated during the breaking process of the moving contact in the switching device 100 and the static contact 22 will move along the static contact 22 to the arcing angle 221 and finally enter the arc extinguishing chamber of the switching device 100 to complete arc extinguishing, avoiding damage to the switching device 100 caused by the electric arc.

[0058] The extension section 15 is provided on the side of the tripping component 1 away from the receiving groove 121 and close to the position where the arcing angle 221 is located. The extending direction of the extension section 15 is the same as the arcing direction of the arcing angle 221, so that the electric arc on the arcing angle 221 can smoothly move from the arcing angle 221 to the extension section 15, enabling the electric arc to continue to move along the extension section 15 and completely enter the arc extinguishing chamber.

[0059] The extension section 15 includes a main body 151 and an arc guiding portion 152. The main body 151 extends from the tripping component 1 in a direction away from the tripping component 1. The arc guiding portion 152 is provided at the end of the main body 151. The gap between the arcing angle 221 and the extension section 15 can be the spaced space between the arcing angle 221 close to the arc guiding portion 152 and the arc guiding portion 152, or the spaced space between the arcing angle 221 extending into the arc guiding portion 152 and the arc guiding portion 152. In both cases, the electric arc on the arcing angle 221 can move to the arc guiding portion 152.

[0060] In addition, a limiting boss is provided on the arc guiding portion 152, and the limiting boss protrudes towards the side of the arc guiding portion 152. The limiting boss can cooperate with the housing of the switching device 100 to play a positioning role when assembling the tripping component 1 to the switching device 100. For example, the limiting boss is connected to a limiting groove provided on the housing to achieve positioning and installation.

[0061] Refer to Figure 3, in some examples, a receiving groove 153 is formed in the extension section 15, and the end of the arc starting angle 221 extends into the receiving groove 153.

[0062] Based on the above embodiments of the present application, the formation of the receiving groove 153 can accommodate the end of the arc starting angle 221, further reducing the gap between the end of the arc starting angle 221 and the arc guiding portion 152 of the extension section 15, so that the arc on the arc starting angle 221 can smoothly move onto the extension section 15. Moreover, the receiving groove 153 can position the end of the arc starting angle 221, fixing the mating position between the arc starting angle 221 and the extension section 15 to ensure that the arc on the arc starting angle 221 can accurately move onto the extension section 15.

[0063] The receiving groove 153 is formed in the arc guiding portion 152 of the extension section 15, and the depth of the receiving groove 153 is the same as the thickness of the end of the arc starting angle 221. When the end of the arc starting angle 221 extends into the receiving groove 153, the arc starting surface of the arc starting angle 221 and the arc guiding surface of the arc guiding portion 152 are in the same plane, which is conducive to the smooth movement of the arc on the arc starting angle 221 to the arc guiding portion 152, so that the arc can smoothly enter the arc extinguishing chamber under the action of the arc guiding portion 152.

[0064] Refer to Figure 5 and Figure 6 , in some examples, the tripping assembly 1 includes a bracket 11, a yoke 12, a fixed shaft 13, and an armature 14. An assembly groove 111 is provided on the bracket 11. The yoke 12 is disposed in the assembly groove 111, and a receiving groove 121 is provided in the yoke 12. The conductive member 2 is connected in the receiving groove 121. The fixed shaft 13 passes through two opposite groove walls of the assembly groove 111, and a torsion spring 131 is provided on the fixed shaft 13. The armature 14 is rotatably connected to the fixed shaft 13 and is located on the side of the yoke 12 away from the bottom of the assembly groove 111. The torsion spring 131 can drive the armature 14 away from the yoke 12. The switching device 100 further includes a lock 101 and a trip 102 that can be locked to each other. When the current on the conductive member 2 reaches a preset value, the yoke 12 attracts the armature 14 to drive the lock 101 and the trip 102 to unlock.

[0065] Based on the above embodiments of the present application, the tripping assembly 1 composed of the bracket 11, the yoke 12, the fixed shaft 13, and the armature 14 has a small number of parts, which is conducive to saving production and manufacturing costs. The yoke 12, the fixed shaft 13, the armature 14, and the conductive member 2 are all assembled on the bracket 11, simplifying the assembly operation of the electromagnetic tripping module, and thus being conducive to improving the assembly efficiency of the electromagnetic tripping module.

[0066] Among them, the fixed connection between the conductive member 2 and the receiving groove 121 can be in the form of riveting or screw connection, etc.

[0067] Exemplarily, the conductive member 2 is riveted in the accommodation groove 121 of the yoke 12, and the yoke 12 is installed in the assembly groove 111 of the bracket 11. The yoke 12 can also be fixed in the assembly groove 111 by riveting. In the embodiment of the present application, the conductive member 2, the yoke 12, and the bracket 11 are fixedly connected by riveting at the same point. Such a setting form has a simple structure and is convenient for assembly.

[0068] Exemplarily, a first fastening hole is provided on the conductive member 2, a second fastening hole is provided at the bottom of the accommodation groove 121, and a third fastening hole is provided at the bottom of the assembly groove 111. The first fastening hole, the second fastening hole, and the third fastening hole are all communicated. A fastening screw is provided to fixedly connect the conductive member 2, the yoke 12, and the bracket 11 at the same time, which also has the advantages of simple structure and convenient assembly.

[0069] In addition, the fixed shaft 13 penetrates through the groove wall of the assembly groove 111, the torsion spring 131 and the armature 14 are rotatably arranged on the fixed shaft 13, and the armature 14 can rotate around the fixed shaft 13 under the elastic force of the torsion spring 131. Such a setting form also has the characteristics of simple structure and convenient assembly. In summary, the clapper-type electromagnetic release provided by this embodiment, which is formed by combining the bracket 11, the yoke 12, the fixed shaft 13, and the armature 14, has the characteristics of simple structure and convenient assembly.

[0070] The bracket 11 is used to fixedly install the yoke 12, the fixed shaft 13, and the armature 14. The assembly groove 111 provided on the bracket 11 is U-shaped, and the front and rear sides of the U-shaped assembly groove 111 also have openings except for the upper opening. The yoke 12 is installed in the assembly groove 111, the accommodation groove 121 is provided on the yoke 12, the accommodation groove 121 has the same structure as the assembly groove 111 and is mutually communicated, that is, the accommodation groove 121 is also U-shaped. The yoke 12 is sleeved in the assembly groove 111, and the conductive member 2 passes through the U-shaped accommodation groove 121 and is riveted to the bottom of the accommodation groove 121.

[0071] At the same time, the bottom of the accommodation groove 121 and the bottom of the assembly groove 111 are riveted to each other, and the conductive member 2 is riveted to the bottom of the accommodation groove 121 and the bottom of the assembly groove 111 at the same point to stably connect the three. In this way, it can be formed by one-time riveting, simplifying the assembly operation and improving the assembly efficiency.

[0072] The fixed shaft 13 passes through the two groove walls of the assembly groove 111, that is, the fixed shaft 13 traverses at the notch of the assembly groove 111. The torsion spring 131 and the armature 14 are rotatably connected to the fixed shaft 13. The torsion spring 131 can apply an elastic force to the armature 14 to make the armature 14 rotate around the fixed shaft 13 to move away from the yoke 12. When the current on the conductive member 2 reaches a preset value, the yoke 12 will generate a magnetic force and adsorb the armature 14. The armature 14 overcomes the elastic force of the torsion spring 131 and approaches the yoke 12. During the movement of the armature 14 approaching the yoke 12, it can drive the latch 101 and the toggle 102 in the switch device 100 to unlock, thereby realizing the tripping function of the tripping assembly 1.

[0073] Referring to Figure 5 , in some examples, the extension section 15 is arranged on the bracket 11.

[0074] Based on the above embodiments of the present application, arranging the extension section 15 on the bracket 11 can be integrally formed with the bracket 11 without setting other connecting structures, and has the characteristics of simple structure and convenient manufacturing.

[0075] Referring to Figure 7 and Figure 8 , in some examples, the torsion spring 131 has a first torsion arm 1311 and a second torsion arm 1312. The first torsion arm 1311 abuts against the bracket 11, and the second torsion arm 1312 abuts against the side of the armature 14 close to the yoke 12. A gear position groove 112 is arranged on the bracket 11, and the first torsion arm 1311 can abut against the groove wall of the gear position groove 112.

[0076] Based on the above embodiments of the present application, the torsion spring 131 can play a lever role between the bracket 11 and the armature 14 through the first torsion arm 1311 and the second torsion arm 1312. Through the elastic force of the torsion spring 131 itself, the armature 14 rotates around the fixed shaft 13 to move away from the yoke 12, so that the armature 14 and the yoke 12 can be kept in a disconnected state, so that after the yoke 12 generates a magnetic field, it can adsorb the armature 14 and drive the latch 101 and the toggle 102 in the switch device 100 to unlock during the movement of the armature 14.

[0077] Referring to Figure 8 , in some examples, at least one gear position groove 112 is arranged, and at least one gear position groove 112 is arranged on the same groove wall or opposite groove walls of the assembly groove 111.

[0078] Based on the above embodiments of the present application, at least one gear position groove 112 corresponds to at least one adjustment position of the first torsion arm 1311. When two or more gear position grooves 112 are provided, the torsion spring 131 can adjust the fixed position of the first torsion arm 1311 according to the specifications of the switching device 100, thereby changing the magnitude of the elastic force generated by the torsion spring 131 itself, and further changing the magnitude of the magnetic force required for the magnetic yoke 12 to adsorb the armature 14. This setting form enables the trip assembly 1 to have a large applicable range, and is mutually applicable among the same switching devices 100 of different specifications, effectively improving the practicability of the trip assembly 1 and reducing the production and manufacturing costs.

[0079] In the embodiment of the present application, two gear position grooves 112 are provided, and the two gear position grooves 112 are spaced apart on the same side wall of the assembly groove 111, corresponding to the first gear position groove 1121 and the second gear position groove 1122. The second torsion arm 1312 of the torsion spring abuts against one side of the armature 14 facing the magnetic yoke 12. The first torsion arm 1311 is snapped into the first gear position groove 1121 corresponding to the first torsion state of the torsion spring 131, and the first torsion arm 1311 is snapped into the second gear position groove 1122 corresponding to the second torsion state of the torsion spring 131.

[0080] Further, when the first torsion arm 1311 is in the first gear position groove 1121, the included angle between the first torsion arm 1311 and the second torsion arm 1312 is small, so the elastic force provided by the first torsion state of the torsion spring 131 is small. When the first torsion arm 1311 is in the second gear position groove 1122, the included angle between the first torsion arm 1311 and the second torsion arm 1312 is large, so the elastic force provided by the second torsion state of the torsion spring 131 is large.

[0081] When the elastic force provided by the torsion spring 131 to the armature 14 through the second torsion arm 1312 is small, the magnetic force required for the magnetic yoke 12 to adsorb the armature 14 is correspondingly small. On the contrary, the magnetic force required for the magnetic yoke 12 to adsorb the armature 14 is large. And the magnetic force provided by the magnetic yoke 12 comes from the magnitude of the current on the conductive member 2. The greater the current passing through the conductive member 2, the greater the magnetic force provided by the magnetic yoke 12. On the contrary, the magnetic force provided by the magnetic yoke 12 is smaller. In this way, the trip assembly 1 can be made universal among the same switching devices 100 of different specifications. It only needs to adjust the cooperation between the first torsion arm 1311 of the torsion spring 131 and the gear position groove 112 according to the specifications of the switching device 100, and has the characteristics of simple structure, high practicability and easy operation.

[0082] When the first gear position groove 1121 and the second gear position groove 1122 are provided on two opposite groove walls in the assembly groove 111, a torsion spring 131 adapted to be provided with two first torsion arms 1311 can be provided. The two first torsion arms 1311 can be respectively snapped into the first gear position groove 1121 and the second gear position groove 1122, further improving the assembly stability of the torsion spring 131.

[0083] In an alternative embodiment, the gear slots 112 may also be provided with three or more than three. The three gear slots 112 may be provided on the same side wall of the assembly slot 111, further expanding the adjustable range of the torsion spring 131 and the armature 14.

[0084] Referring to Figure 8 , in some examples, a limiting portion 113 is provided on the bracket 11, and the limiting portion 113 can abut against the side of the armature 14 facing away from the yoke 12.

[0085] Based on the above embodiments of the present application, the setting of the limiting portion 113 is used to limit the rotation range of the armature 14 rotating around the fixed shaft 13, so that the armature 14 is kept at a position where it can be adsorbed by the yoke 12 in time, and to prevent the armature 14 from rotating around the fixed shaft 13 to a position where it cannot be adsorbed by the yoke 12 under the action of the torsion spring 131. Ensure that when the current on the conductive member 2 reaches the preset value and the yoke 12 adsorbs the armature 14 instantaneously, the armature 14 can move towards the direction close to the yoke 12 in time, effectively improving the reliability of the trip assembly 1.

[0086] Referring to Figure 8 , in some examples, the limiting portion 113 includes an ear portion 1131 provided on the bracket 11 and a limiting platform 1132 provided on the ear portion 1131. The limiting platform 1132 abuts against the side of the armature 14 facing away from the yoke 12.

[0087] Based on the above embodiments of the present application, the setting of the ear portion 1131 can correspond to the position of the armature 14, so that the armature 14 cannot exceed the range where it can be adsorbed by the yoke 12 in time when rotating around the fixed shaft 13. The limiting platform 1132 provided on the ear portion 1131 is used to abut against the side of the armature 14 facing away from the yoke 12 to block the further movement of the armature 14 in the direction away from the yoke 12.

[0088] Specifically, the ear portions 1131 are oppositely arranged on the groove wall of the assembly groove 111. The ear portions 1131 extend from the bracket 11 in a direction away from the bracket 11. The limiting platform 1132 is provided at one end of the ear portion 1131 away from the bracket 11. The limiting platform 1132 extends from the ear portion 1131 towards the center position of the assembly groove 111 to block the armature 14 within the opening range of the assembly groove 111.

[0089] Referring to Figure 1 , an embodiment of the present application further provides a switching device 100, including a housing, and an electromagnetic trip module 200 is installed in the housing.

[0090] Based on the above embodiments of the present application, the switching device 100 having the above electromagnetic trip module 200 can effectively improve the assembly efficiency, and can also reduce the space occupied by the electromagnetic trip in the housing of the switching device 100 on the premise of ensuring that the electromagnetic trip module 200 can work normally.

[0091] In addition, the switching device 100 further includes a latch 101 and a tripping latch 102. The armature 14 in the electromagnetic tripping module 200 is provided with a pushing portion 141. When the armature 14 is adsorbed by the yoke 12, the pushing portion 141 can push the latch 101 to unlock the latch 101 and the tripping latch 102. By using the pushing portion 141 provided on the armature 14 to push the latch 101 or the tripping latch 102, the latch 101 and the tripping latch 102 are unlocked to disconnect the switching device 100. This cooperation form has a simple structure, is convenient to manufacture, and has a high assembly efficiency.

[0092] Specifically, the pushing portion 141 is provided on the side of the armature 14 away from the fixed shaft 13. A part of the latch 101 is within the range where the pushing portion 141 rotates with the armature 14. When the armature 14 is adsorbed by the yoke 12, the armature 14 rotates around the fixed shaft 13. At this time, the pushing portion 141 can push the latch 101 during the rotation with the armature 14, so that the latch 101 and the tripping latch 102 are unlocked, thereby disconnecting the switching device 100.

[0093] The switching device 100 can be a circuit breaker, a relay, a contactor, etc. In the embodiment of the present application, the switching device 100 is set as a circuit breaker, and the electromagnetic tripping module 200 is installed in the circuit breaker.

[0094] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An electromagnetic trip module, characterized in that, Provided on a switching device, the electromagnetic tripping module includes: A tripping assembly having a receiving groove, and the tripping assembly can introduce an electric arc into an arc extinguishing module; A conductive member, the first end of the conductive member is a terminal block, the second end of the conductive member is a stationary contact, and the middle part of the conductive member is fixedly connected in the receiving groove; The conductive member is integrated into the tripping assembly and forms an independent module.

2. The electromagnetic tripping module according to claim 1, wherein An extension section is provided on a side of the tripping assembly facing away from the receiving groove, an arc guiding angle is provided on the stationary contact, and there is a gap between the extension section and the arc guiding angle.

3. The electromagnetic tripping module according to claim 2, wherein A receiving groove is formed in the extension section, and an end of the arc guiding angle extends into the receiving groove.

4. The electromagnetic tripping module according to claim 2 or 3, characterized in that, The tripping assembly includes: A bracket provided with an assembly groove; A yoke disposed in the assembly groove, the receiving groove is provided in the yoke, and the conductive member is connected in the receiving groove; A fixed shaft passing through two opposite groove walls of the assembly groove, and a torsion spring is provided on the fixed shaft; An armature rotatably connected to the fixed shaft and located on a side of the yoke away from the bottom of the assembly groove; The torsion spring can drive the armature away from the yoke, and the switching device further includes a latch and a trip that can be locked to each other. When the current on the conductive member reaches a preset value, the yoke adsorbs the armature to drive the latch and the trip to unlock.

5. The electromagnetic tripping module according to claim 4, characterized in that, The extension section is provided on the bracket.

6. The electromagnetic tripping module according to claim 4, characterized in that, The torsion spring has a first torsion arm and a second torsion arm. The first torsion arm abuts against the bracket, and the second torsion arm abuts against a side of the armature close to the yoke; A stop groove is provided on the bracket, and the first torsion arm can abut against the groove wall of the stop groove.

7. The electromagnetic tripping module according to claim 6, characterized in that, There is at least one stop groove, and at least one stop groove is provided on the same groove wall or opposite groove walls of the assembly groove.

8. The electromagnetic tripping module according to claim 4, characterized in that, A limiting portion is provided on the bracket, and the limiting portion can abut against a side of the armature facing away from the yoke.

9. The electromagnetic tripping module according to claim 8, characterized in that, The limiting portion includes an ear provided on the bracket and a limiting platform provided on the ear, and the limiting platform abuts against a side of the armature facing away from the yoke.

10. A switching device, characterized in that, Including a housing and the electromagnetic tripping module according to any one of claims 1-9, and the electromagnetic tripping module is installed in the housing.

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