A contact assembly and load switch

Abstract

The utility model provides a kind of contact assembly and load switch, it is related to electrical equipment technical field.Contact assembly includes contact seat, movable contact and elastic piece.Movable contact one end is movably connected with contact seat, and the side of other end is provided with contact part, and the side opposite to each other is provided with first lap joint part;Elastic piece is set to contact seat and is in contact with first lap joint part, for in closing state for movable contact provide the force of moving towards static contact, and the contact position of elastic piece and first lap joint part is located in the middle of movable contact in width direction, on the one hand, it can increase movable contact and static contact in closing state Contact pressure, so as to improve the endurance of contact assembly;On the other hand, it can make the stress of first lap joint part relatively balanced, and make contact part can be in contact with static contact directly, to ensure that movable contact and static contact contact more stable, improve the stability and reliability of load switch.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and more specifically, to a contact assembly and a load switch. Background Technology

[0002] In existing electronic equipment or switching devices, load switches are key components for controlling circuit on / off states, and the design of their contact assemblies directly affects the performance and reliability of the equipment. In the contact assembly, elastic elements are typically incorporated to apply force to the moving contact, increasing the contact pressure between the moving and stationary contacts in the closed state, thus ensuring good conductivity and operational reliability.

[0003] However, the design of the contact position between the elastic element and the moving contact in the existing technology has obvious defects. The point of action of the elastic element is often biased to one side of the moving contact, resulting in uneven force application. This biased force state causes the moving contact to contact the stationary contact in an inclined posture during the closing process. The initial contact only occurs in a local area or a small area, resulting in a reduced contact area and making it prone to local overheating. In addition, this uneven force state will cause poor contact between the moving and stationary contacts, seriously affecting the reliable operation of the load switch. Utility Model Content

[0004] The purpose of this utility model is to provide a contact assembly and a load switch, wherein the elastic element acts on the middle position of the moving contact to make the moving contact bear force evenly, so as to achieve stable contact between the moving contact and the stationary contact, thereby improving the stability and reliability of the load switch.

[0005] The embodiments of this utility model are implemented as follows: In a first aspect, this utility model provides a contact assembly, comprising: Contactor base; The moving contact has one end movably connected to the contact seat, and the other end has a contact portion on one side and a first overlapping portion on the opposite side. An elastic element is disposed on the contact seat and abuts against the first overlapping portion, for providing a force to the moving contact toward the stationary contact in the closed state, and the contact position between the elastic element and the first overlapping portion is located at the middle of the moving contact in the width direction.

[0006] In an optional embodiment, there are two moving contacts and two elastic elements. The contact assembly also includes a rotating shaft. The contact seat includes a body and mounting portions disposed on both sides of the body. The contact seat also has a through hole penetrating the body and the mounting portions. The rotating shaft passes through the through hole. The two elastic elements are respectively disposed on the two mounting portions. The contact position between the elastic element and the first overlapping portion is located at the middle of the width of the moving contact along the axis of the rotating shaft.

[0007] In an optional embodiment, the two moving contacts are movably disposed on both sides of the contact seat via the pivot, the mounting portion is located between the moving contacts and the body, and the two elastic elements are respectively located on opposite sides of the two moving contacts.

[0008] In an optional embodiment, the contact assembly further includes two flexible connections, each of which is connected to two opposite sidewalls of the two moving contacts.

[0009] In an optional embodiment, the first overlapping portion extends toward the body along the axial direction of the rotating shaft, and a limiting portion protrudes from the first overlapping portion. The moving contact is used to restrict the elastic member from moving away from the body from the side wall of the body, and the limiting portion is used to restrict the elastic member from moving toward the body along the axis of the rotating shaft.

[0010] In an optional embodiment, the two moving contacts are respectively disposed on the two mounting portions, and the two elastic elements are respectively located on opposite sides of the two moving contacts.

[0011] In an optional embodiment, the contact assembly further includes two flexible connections, each of which is connected to a sidewall opposite to one of the two moving contacts.

[0012] In an optional embodiment, the first overlapping portion extends away from the body along the axial direction of the rotating shaft, and a limiting portion protrudes from the first overlapping portion. The side wall of the moving contact away from the body is used to restrict the movement of the elastic member toward the body, and the limiting portion is used to restrict the movement of the elastic member away from the body along the axis of the rotating shaft.

[0013] In an optional embodiment, the width of the end of the moving contact where the contact portion and the first overlapping portion are disposed is greater than the width of the end of the moving contact connected to the contact seat.

[0014] Secondly, this utility model provides a load switch, including a housing and an electromagnetic component, an armature, a transmission component, and a contact assembly as described in any of the foregoing embodiments, all disposed within the housing. The contact assembly further includes a stationary contact. The armature drives the transmission component to move under the drive of the electromagnetic component, thereby driving the contact seat to move so that the moving contact contacts or separates from the stationary contact.

[0015] The beneficial effects of the contact assembly and load switch provided in this utility model embodiment include: the elastic force generated by the elastic deformation of the elastic element acts on the middle part of the first overlapping part, which on the one hand increases the contact pressure between the moving contact and the stationary contact in the closed state, thereby improving the withstand capability of the contact assembly; on the other hand, it makes the force on the first overlapping part relatively balanced, and allows the contact part to make direct contact with the stationary contact, thereby ensuring more stable contact between the moving contact and the stationary contact, and improving the stability and reliability of the load switch. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the load switch structure of the first embodiment of this utility model is provided. Figure 2 A schematic diagram of the contact assembly structure of the first embodiment of this utility model is provided; Figure 3 A schematic diagram of the contact seat structure of the first embodiment of this utility model is provided; Figure 4 A schematic diagram of the moving contact structure of the first embodiment of this utility model is provided. Figure 5 This is a schematic diagram of the load switch structure of the second embodiment of the present utility model. Figure 6 This is a first-view structural diagram of the contact assembly of the second embodiment provided by this utility model. Figure 7 This is a second-view structural diagram of the contact assembly provided in the second embodiment of the present utility model.

[0018] Icons: 10-Load switch; 11-Contact assembly; 100-Contact base; 110-Body; 120-Mounting part; 130-Through hole; 140-Second overlapping part; 150-Transmission part; 160-Connecting part; 200-Rotating shaft; 300-Moving contact; 310-Contact part; 320-First overlapping part; 330-Limiting part; 400-Elastic element; 500-Flexible connection; 600-Stationary contact; 12-Housing; 13-Electromagnetic assembly; 14-Armature; 15-Transmission element. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] In existing electronic equipment or switching devices, load switches are key components for controlling circuit on / off states, and the design of their contact assemblies directly affects the performance and reliability of the equipment. In the contact assembly, elastic elements are typically incorporated to apply force to the moving contact, increasing the contact pressure between the moving and stationary contacts in the closed state, thus ensuring good conductivity and operational reliability.

[0026] However, the design of the contact position between the elastic element and the moving contact in the existing technology has obvious defects. The point of action of the elastic element is often biased to one side of the moving contact, resulting in uneven force application. This biased force state causes the moving contact to contact the stationary contact in an inclined posture during the closing process. The initial contact only occurs in a local area or a small area, resulting in a reduced contact area and making it prone to local overheating. In addition, this uneven force state will cause poor contact between the moving and stationary contacts, seriously affecting the reliable operation of the load switch.

[0027] Therefore, it is urgent to optimize the mating structure of the elastic element and the moving contact, improve the force distribution, avoid tilting contact problems caused by the offset of the point of application, improve the stability, reliability and service life of the contact, and meet the stringent requirements of the power system for high-performance load switches.

[0028] Based on the problems existing in the current technology, please refer to Figures 1 to 4 This utility model provides a load switch 10, including a housing 12 and an electromagnetic component 13, an armature 14, a transmission component 15 and a contact assembly 11 disposed in the housing 12. The contact assembly 11 also includes a stationary contact 600. The armature 14, the transmission component 15 and the contact seat 100 are sequentially connected in a transmission manner. The armature 14 drives the transmission component 15 to move under the drive of the electromagnetic component 13, which in turn drives the contact seat 100 to move so that the moving contact 300 contacts or separates from the stationary contact 600.

[0029] In detail, the contact assembly 11 includes a contact base 100, a moving contact 300, and an elastic element 400.

[0030] One end of the moving contact 300 is movably connected to the contact seat 100, and a contact portion 310 is provided on one side of the other end, while a first overlapping portion 320 is provided on the other side opposite to the contact portion 310. An elastic member 400 is disposed on the contact seat 100 and abuts against the first overlapping portion 320, which is used to provide a force for the moving contact 300 to move toward the stationary contact 600 in the closed state, and the contact position between the elastic member 400 and the first overlapping portion 320 is located at the middle of the moving contact 300 in the width direction.

[0031] Therefore, the elastic force generated by the elastic deformation of the elastic element 400 acts on the middle part of the first overlapping portion 320. On the one hand, it can increase the contact pressure between the moving contact 300 and the stationary contact 600 in the closed state, thereby improving the withstand capability of the contact assembly 11. On the other hand, it can make the force on the first overlapping portion 320 relatively balanced, and make the contact portion 310 able to make direct contact with the stationary contact 600, thereby ensuring that the contact between the moving contact 300 and the stationary contact 600 is more stable, and improving the stability and reliability of the load switch 10.

[0032] like Figures 2 to 4 As shown, in some embodiments of this utility model, there are two moving contacts 300 and two elastic members 400. The contact assembly also includes a rotating shaft 200. The contact seat 100 includes a body 110 and mounting portions 120 disposed on both sides of the body 110. The contact seat 100 is also provided with a through hole 130 penetrating the body 110 and the mounting portion 120. The rotating shaft 200 passes through the through hole 130. The two elastic members 400 are respectively disposed on the two mounting portions 120. The contact position between the elastic member 400 and the first overlapping portion 320 is located at the middle of the width of the moving contact 300 along the axial direction of the rotating shaft 200.

[0033] In other words, the contact assembly 11 provided in this embodiment has a dual-contact structure. It can be understood that the dual-contact structure can effectively shunt current, reduce the resistance of the entire circuit and the current density of a single contact, reduce heat generation, and thus improve the overall current-carrying capacity and long-term operational stability. Furthermore, the two moving contacts 300 operate in parallel. Even if one moving contact 300 experiences increased contact resistance due to wear or contamination, the other moving contact 300 can still maintain a conductive path, significantly reducing the risk of power failure and making it suitable for applications with high reliability requirements.

[0034] Each elastic element 400 is located between the moving contact 300 and the contact seat 100, which makes the contact assembly 11 compact and eliminates the need for additional fixing parts to fix the elastic element 400, thus reducing production costs and facilitating later maintenance.

[0035] Specifically, two elastic members 400 are respectively disposed on two mounting portions 120, and two moving contacts 300 are movably disposed on both sides of the contact seat 100 via a rotating shaft 200. The mounting portions 120 are located between the moving contacts 300 and the body 110. The two elastic members 400 are respectively located on opposite sides of the two moving contacts 300. The contact position between the elastic members 400 and the first overlapping portion 320 is located at the middle of the moving contact 300 along the axial direction of the rotating shaft 200. In other words, the width direction of the moving contact 300 is the axial direction of the rotating shaft 200. The moving contact 300 is connected to the contact seat 100 by the rotating shaft 200. The diameter of the rotating shaft 200 is smaller than the diameter of the mounting portion 120, so the shaft hole opened on the moving contact 300 does not need to be too large, reducing the overall volume of the moving contact 300.

[0036] It can be understood that each elastic element 400 is located between the adjacent moving contact 300 and the body, that is, the elastic element 400 is restricted between the moving contact 300 and the body, so that the elastic element 400 is relatively stably installed on the mounting part 120, thereby improving the installation stability of the contact assembly 11.

[0037] To further improve the stability of the elastic element 400, the first overlapping portion 320 extends toward the body 110 along the axial direction of the rotating shaft 200. Therefore, the width of the end of the moving contact 300 where the contact portion 310 and the first overlapping portion 320 are provided is greater than the width of the end of the moving contact 300 connected to the contact seat 100. A limiting portion 330 protrudes from the first overlapping portion 320. The side wall of the moving contact 300 toward the body 110 is used to restrict the movement of the elastic element 400 away from the body 110, and the limiting portion 330 is used to restrict the movement of the elastic element 400 toward the body 110 along the axis of the rotating shaft 200.

[0038] Therefore, the side wall of the moving contact 300 facing the body 110 can restrict the elastic member 400 from moving away from the body 110, and the limiting part 330 can restrict the contact part between the elastic member 400 and the moving contact 300 from moving towards the body 110. This keeps the contact part between the elastic member 400 and the moving contact 300 relatively fixed, and ensures that the contact part between the elastic member 400 and the moving contact 300 is always located in the middle of the first overlapping part 320. This allows the elastic force generated by the elastic member 400 to act on the middle of the first overlapping part 320, thereby making the moving contact 300 subject to balanced force. This ensures that the contact part 310 of the moving contact 300 and the stationary contact 600 are in surface-to-surface contact, preventing the moving contact 300 from contacting the stationary contact 600 in an inclined state. This allows the contact part 310 of the moving contact 300 and the stationary contact 600 to make more stable contact, improving its stability and reliability.

[0039] In order to enable the current to form a conductive circuit between the moving contact 300 and the stationary contact 600, the contact assembly 11 also includes two flexible connections 500, which are respectively connected to the two side walls opposite to the two moving contacts 300.

[0040] Specifically, the flexible connection 500 is connected to the side of the moving contact 300 away from the elastic element 400, thereby avoiding mutual interference between the flexible connection 500 and the elastic element 400, thus improving the motion stability and reliability of the contact assembly 11.

[0041] It is worth mentioning that the two moving contacts 300 and the two elastic elements 400 are symmetrically arranged on the contact seat 100.

[0042] Furthermore, it can be understood that in this embodiment, the elastic element 400 can be, but is not limited to, a torsion spring. When the elastic element 400 is a torsion spring, the contact seat 100 also includes a second overlapping portion 140 connected to the body 110, the elastic element 400 is sleeved on the mounting portion 120, and one end of the elastic element 400 abuts against the second overlapping portion 140, and the other end abuts against the first overlapping portion 320.

[0043] This design ensures that the elastic element 400 undergoes elastic deformation under the action of the contact seat 100, and generates an elastic force that acts on the first lap portion 320 of the moving contact 300.

[0044] It should be noted that the contact seat 100 also includes a transmission part 150, which is connected to the body 110 and abuts against the moving contact 300 to drive the moving contact 300 to rotate synchronously.

[0045] In other words, when the contact seat 100 rotates relative to the housing 12, it abuts against the moving contact 300 through the transmission part 150, thereby driving the moving contact 300 to rotate synchronously. When the moving contact 300 contacts the stationary contact 600, the contact seat 100 will rotate slightly further, i.e., "overtravel". At this time, the contact seat 100 and the moving contact 300 move relative to each other, thereby causing the elastic element 400 to deform elastically. As a result, the elastic force generated by the elastic element 400 acts on the moving contact 300, making the moving contact 300 tend to move further toward the stationary contact 600, thereby increasing the contact force between the moving contact 300 and the stationary contact 600, and achieving stable contact between the moving contact 300 and the stationary contact 600.

[0046] Since the contact seat 100 rotates relative to the housing 12 under the drive of the transmission member 15, the contact seat 100 also includes a connecting part 160. The connecting part 160 is connected to the body 110 and is located on the side of the rotating shaft 200 away from the moving contact 300. The connecting part 160 is connected to the transmission member 15 so as to drive the moving contact 300 to rotate under the drive of the transmission member 15.

[0047] In addition, such as Figures 5 to 7 As shown, in some other embodiments of the present invention, two moving contacts 300 are respectively movably disposed on both sides of the contact base 100, and two elastic members 400 are respectively disposed on both sides of the contact base 100, and located on opposite sides of the two moving contacts 300.

[0048] In other words, each moving contact 300 is located between the contact seat 100 and the adjacent elastic element 400.

[0049] Specifically, the contact assembly 11 also includes a rotating shaft 200, and the contact seat 100 includes a body 110 and mounting portions 120 disposed on both sides of the body 110. The contact seat 100 is also provided with a through hole 130 penetrating the body 110 and the mounting portions 120. The rotating shaft 200 passes through the through hole 130, and the contact seat 100 is movably disposed on the housing 12 via the rotating shaft 200.

[0050] Two elastic elements 400 are respectively disposed on two mounting portions 120, and two moving contacts 300 are respectively disposed on two mounting portions 120. The two elastic elements 400 are respectively disposed on both sides of the contact seat 100 and located on opposite sides of the two moving contacts 300. The contact position of the elastic element 400 with the first overlapping portion 320 is at the middle of the moving contact 300 along the axis of the rotating shaft 200.

[0051] In this embodiment, the elastic members 400 and the moving contacts 300 located on both sides of the body 110 are both provided on the mounting portion 120, and the moving contacts 300 are located between the body 110 and the body 110.

[0052] Therefore, in this embodiment, the first overlapping portion 320 extends away from the body 110 along the axial direction of the rotating shaft 200, and a limiting portion 330 is protruding on the first overlapping portion 320. The side wall of the moving contact 300 away from the body 110 is used to restrict the movement of the elastic member 400 toward the body 110, and the limiting portion 330 is used to restrict the movement of the elastic member 400 away from the body 110 along the axis of the rotating shaft 200.

[0053] Specifically, the side wall of the moving contact 300 away from the body 110 can restrict the elastic member 400 from moving toward the body 110, and the limiting part 330 can restrict the contact area between the elastic member 400 and the moving contact 300 from moving away from the body 110. This keeps the contact area between the elastic member 400 and the moving contact 300 relatively fixed, and ensures that the contact area between the elastic member 400 and the moving contact 300 is always located in the middle of the first overlapping part 320. This allows the elastic force generated by the elastic member 400 to act on the middle of the first overlapping part 320, thereby making the moving contact 300 subject to balanced force. This ensures that the contact part 310 of the moving contact 300 and the stationary contact 600 are in surface-to-surface contact, preventing the moving contact 300 from contacting the stationary contact 600 in an inclined state. This allows the contact part 310 of the moving contact 300 and the stationary contact 600 to make more stable contact, improving its stability and reliability.

[0054] To avoid interference between the flexible connection 500 and the elastic element 400, in this embodiment, the two flexible connections 500 are respectively connected to the two opposite side walls of the two moving contacts 300. This also avoids friction between the moving contacts 300 and the housing of the load switch during the movement of the moving contacts 300, thus preventing resistance.

[0055] It should also be noted that any content not mentioned in this embodiment can be referred to the relevant description in the previous embodiment, and will not be repeated here.

[0056] In summary, this utility model provides a contact assembly 11 and a load switch 10. The elastic force generated by the elastic deformation of the elastic element 400 acts on the middle part of the first overlapping portion 320. On the one hand, it can increase the contact pressure between the moving contact 300 and the stationary contact 600 in the closed state, thereby improving the withstand capability of the contact assembly 11. On the other hand, it can make the force on the first overlapping portion 320 relatively balanced, and make the contact portion 310 able to make direct contact with the stationary contact 600, thereby ensuring a more stable contact between the moving contact 300 and the stationary contact 600, and improving the stability and reliability of the load switch 10.

[0057] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A contact assembly, characterized by, include: Contactor base (100); The moving contact (300) has one end movably connected to the contact seat (100), and the other end has a contact portion (310) on one side and a first overlapping portion (320) on the opposite side. An elastic element (400) is disposed on the contact seat (100) and abuts against the first overlapping portion (320) for providing a force to the moving contact (300) toward the stationary contact (600) in the closed state, and the contact position between the elastic element (400) and the first overlapping portion (320) is located at the middle of the moving contact (300) in the width direction.

2. The contact assembly of claim 1, wherein, The number of the moving contact (300) and the elastic element (400) are both two. The contact assembly also includes a rotating shaft (200). The contact seat (100) includes a body (110) and mounting portions (120) disposed on both sides of the body (110). The contact seat (100) is also provided with a through hole (130) penetrating the body (110) and the mounting portion (120). The rotating shaft (200) passes through the through hole (130). The two elastic elements (400) are respectively disposed on the two mounting portions (120). The contact position of the elastic element (400) with the first overlapping portion (320) is located at the middle of the width of the moving contact (300) along the axial direction of the rotating shaft (200).

3. The contact assembly of claim 2, wherein, The two moving contacts (300) are movably disposed on both sides of the contact seat (100) via the pivot (200), the mounting part (120) is located between the moving contacts (300) and the body (110), and the two elastic members (400) are respectively located on opposite sides of the two moving contacts (300).

4. The contact assembly of claim 3, wherein, The contact assembly also includes two flexible connections (500), which are respectively connected to two opposite sidewalls of the two moving contacts (300).

5. The contact assembly of claim 3, wherein, The first overlapping portion (320) extends toward the body (110) along the axial direction of the rotating shaft (200), and a limiting portion (330) is provided on the first overlapping portion (320). The moving contact (300) is located on the side wall of the body (110) to restrict the movement of the elastic member (400) away from the body (110). The limiting portion (330) is used to restrict the movement of the elastic member (400) toward the body (110) along the axis of the rotating shaft (200).

6. The contact assembly of claim 2, wherein, The two moving contacts (300) are respectively disposed on the two mounting portions (120), and the two elastic members (400) are respectively located on opposite sides of the two moving contacts (300).

7. The contact assembly of claim 6, wherein, The contact assembly also includes two flexible connections (500), which are respectively connected to two sidewalls opposite to the two moving contacts (300).

8. The contact assembly of claim 6, wherein, The first overlapping portion (320) extends away from the body (110) along the axial direction of the rotating shaft (200). A limiting portion (330) is provided on the first overlapping portion (320). The side wall of the moving contact (300) away from the body (110) is used to restrict the movement of the elastic member (400) toward the body (110). The limiting portion (330) is used to restrict the movement of the elastic member (400) away from the body (110) along the axis of the rotating shaft (200).

9. The contact assembly of claim 1, wherein, The width of the end of the moving contact (300) where the contact portion (310) and the first overlapping portion (320) are provided is greater than the width of the end of the moving contact (300) connected to the contact seat (100).

10. A load break switch characterized by The device includes a housing (12) and an electromagnetic component (13), an armature (14), a transmission component (15), and a contact assembly (11) as described in any one of claims 1-9, wherein the contact assembly (11) further includes a stationary contact (600), and the armature (14) drives the transmission component (15) to move under the drive of the electromagnetic component (13), thereby driving the contact seat (100) to move so that the moving contact (300) contacts or separates from the stationary contact (600).

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