Moving contact structure and contact system
By bent the opposite ends of the movable contact plate to the same side and set the moving contacts in the dynamic contact structure, the repulsion problem is solved when the dynamic and static contacts of the low-voltage switch are carried large currents, and the short resistance index is improved and the space utilization of the arc extinguishing chamber.
Patent Information
- Application Number
- CN202420111062.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-16
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-01-16
AI Technical Summary
When the existing low-voltage switch dynamic and static contacts carry large currents, the repulsion force is superimposed, which can easily cause contact repulsion to cause welding or arcing, damage to switch products, and the layout space of the arc extinguishing chamber is limited.
A moving contact structure is designed, in which both opposite ends of the moving contact plate are bent toward the same side, and a moving contact is provided with a moving contact on one side of the bent portion toward the static contact, and the repulsive force is decomposed to the horizontal in the normal direction. The direction and the vertical direction make the repulsive force generated by the contact point opposite and cancel each other in the vertical direction of the contact support movement direction, reducing the total repulsive force, and the arcing is smoother and smoother through the bending structure, which facilitates the rapid entry of the arc. Arc extinguishing room.
The total repulsion of the moving contact structure is reduced, the short resistance index is improved, the arc is promoted to quickly enter the arc extinguishing chamber, and the space utilization rate of low-voltage switches and the layout convenience of the arc extinguishing chamber are improved.
Smart Images
Figure CN222319997U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrical equipment, in particular to a moving contact structure and a contact system. Background Art
[0002] The moving contact system is an important component of the low-voltage switch, which is mainly used to connect, carry and disconnect current.
[0003] The moving and static contacts of existing low-voltage switches such as relays and contactors are usually placed horizontally. Considering the arc-starting effect, the arc-extinguishing chamber can only be placed on both sides of the contact point, so the product size is large or the layout space of the arc-extinguishing chamber is limited. At the same time, when the horizontally placed moving and static contacts carry a large short-circuit current, the repulsive force of the moving contact is superimposed, which is easy to cause the contacts to be repelled and cause welding or arcing, and finally damage the switch product. Utility Model Content
[0004] The purpose of the utility model is to provide a moving contact structure and a contact system, which can decompose the repulsive force when the moving contact contacts the static contact into the horizontal direction and the vertical direction along the normal direction, so that the repulsive force generated by the contact point in the vertical direction of the movement direction of the contact bracket is opposite in direction and cancels each other out, so that the total repulsive force of the moving contact structure is reduced and the short-circuit withstand index is improved; at the same time, the bent moving contact structure makes the arcing smoother and more gradual, which is conducive to the rapid entry of the arc into the arc extinguishing chamber, and is more convenient for the arrangement of the arc extinguishing chamber of the low-voltage switch, thereby improving the space utilization rate of the low-voltage switch.
[0005] The embodiment of the utility model is achieved as follows:
[0006] One aspect of the utility model provides a moving contact structure, including a contact bracket and a moving contact plate fixedly connected to the contact bracket, the contact bracket can be driven to drive the moving contact plate to contact or separate with the static contact of the contact system; the opposite ends of the moving contact plate are bent toward the same side, and the bending parts of the opposite ends of the moving contact plate are respectively provided with moving contacts on the side facing the static contact.
[0007] Optionally, both opposite ends of the moving contact plate are bent toward a side away from the stationary contact.
[0008] Optionally, both opposite ends of the moving contact plate are bent toward a side close to the stationary contact.
[0009] Optionally, the bending portion of the moving contact plate includes a first moving touch plate and a second moving touch plate, and the first moving touch plate and the second moving touch plate are respectively connected to the contact bracket; the first moving touch plate and the second moving touch plate are respectively arranged at two ends of the contact bracket, and there is a preset angle θ between the first moving touch plate and the second moving touch plate, wherein the value range of θ is 90°-150°.
[0010] Optionally, the end of the first moving contact plate and / or the second moving contact plate of the moving contact plate is arranged on one side of the arc extinguishing chamber of the low-voltage switch, and the arrangement direction of the moving contact plate and the arc extinguishing chamber is parallel to the arrangement direction of the first moving contact plate and the second moving contact plate; the end of the moving contact plate can strike an arc to the arc extinguishing chamber.
[0011] Another aspect of the present invention provides a contact system, comprising a stationary contact and the above-mentioned moving contact structure, wherein the position of the stationary contact is arranged corresponding to the moving contact plate of the moving contact structure.
[0012] Optionally, the stationary contact includes two stationary contacts, and two moving contacts are provided on one side of the moving contact plate facing the stationary contact, and the distance between the two stationary contacts is equal to the distance between the two moving contacts, so that the stationary contacts can be connected to the moving contacts.
[0013] Optionally, the static contact includes a first static touch plate and a second static touch plate, the ends of the first static touch plate and the second static touch plate are connected to form a whole, or the first static touch plate and the second static touch plate are arranged at intervals; the first static touch plate and the second static touch plate correspond to the first moving touch plate and the second moving touch plate of the moving contact plate, and the two static contacts are respectively arranged on one side of the first static touch plate and the second static touch plate close to the moving contact structure.
[0014] Optionally, the contact system includes multiple groups of stationary contacts arranged side by side and multiple groups of correspondingly arranged moving contact plates, and the stationary contacts correspond to the moving contact plates one by one; the stationary contacts include a first stationary touch plate and a second stationary touch plate, and the ends of the first stationary touch plate and the second stationary touch plate are connected to form a whole, or the first stationary touch plate and the second stationary touch plate are arranged at intervals; the first moving touch plate and the second moving touch plate of the moving contact plate are adapted to the structure of the first stationary touch plate and the second stationary touch plate.
[0015] Optionally, the contact system further comprises a magnetizing block, and when the ends of the first stationary contact plate and the second stationary contact plate are connected as a whole, a magnetizing block is provided on the side of the stationary contact facing away from the moving contact plate; or, a magnetizing block is provided on the side of the stationary contact and the moving contact plate facing away from each other.
[0016] Optionally, the contact system further comprises a magnetizing block, and when the first stationary contact plate and the second stationary contact plate are arranged at intervals, magnetizing blocks are arranged on both sides of the moving contact plate close to and away from the stationary contact.
[0017] The beneficial effects of the utility model include:
[0018] The moving contact structure provided by the present application includes a contact bracket and a moving contact plate fixedly connected to the contact bracket. The contact bracket is driven to drive the moving contact plate to contact or separate with the static contact of the contact system; the two opposite ends of the moving contact plate are bent toward the same side, and the bending parts of the two opposite ends of the moving contact plate are respectively provided with moving contacts on the side facing the static contact. The moving contact structure obtained by the above design, by bending the two opposite ends of the moving contact plate toward the same side, makes the repulsive force generated by the contact point in the direction perpendicular to the direction of movement of the contact bracket opposite and offset each other, so that the total repulsive force of the moving contact structure is reduced and the short-term resistance index is improved; at the same time, the arcing of the bent moving contact structure is smoother and smoother, which is conducive to the rapid entry of the arc into the arc extinguishing chamber, and is more convenient for the arrangement of the arc extinguishing chamber of the low-voltage switch, thereby improving the space utilization rate of the low-voltage switch.
[0019] The contact system provided by the present application includes a static contact and the above-mentioned moving contact structure, and the position of the static contact is set corresponding to the moving contact plate of the moving contact structure. The contact system obtained by the above design can reduce the repulsive force when the moving contact plate contacts the static contact, thereby improving the short-term resistance index; at the same time, the arcing of the bent moving contact structure is smoother and more gradual, which is conducive to the rapid entry of the arc into the arc extinguishing chamber, and is more convenient for the arc extinguishing chamber arrangement of the low-voltage switch, thereby improving the space utilization rate of the low-voltage switch. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0021] Figure 1 A schematic diagram of the structure of the contact system provided in this application;
[0022] Figure 2 A schematic diagram of the structure of the moving contact provided in this application;
[0023] Figure 3 One of the structural schematic diagrams of the moving contact plate provided in this application;
[0024] Figure 4 The second structural schematic diagram of the moving contact plate provided in this application;
[0025] Figure 5 This is a schematic diagram of the structure of the static contact provided in this application.
[0026] Icon: 100-moving contact structure; 110-contact bracket; 120-moving contact plate; 121-first connecting part; 122-first moving contact plate; 123-second moving contact plate; 124-moving contact; 200-contact system; 210-stationary contact; 211-second connecting part; 212-first stationary contact plate; 213-second stationary contact plate; 214-stationary contact; 300-arc extinguishing chamber. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0028] 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 present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0030] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0031] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only 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.
[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0033] Please refer to Figure 1 and Figure 2 The present embodiment provides a moving contact structure 100, including a contact bracket 110 and a moving contact plate 120 fixedly connected to the contact bracket 110. The contact bracket 110 can be driven to drive the moving contact plate 120 to contact or separate from the stationary contact 210 of the contact system 200; the opposite ends of the moving contact plate 120 are bent toward the same side, and the bending parts of the opposite ends of the moving contact plate 120 are respectively provided with moving contacts 124 on one side facing the stationary contact 210.
[0034] Specifically, the present application provides a moving contact structure 100, which includes a contact support 110 and a moving contact plate 120. The contact support 110 is used to provide a certain support for the moving contact plate 120. The moving contact plate 120 is connected to the contact support 110, and both ends extend outward. The contact support 110 can be driven to drive the moving contact plate 120 to contact or separate from the stationary contact 210. An elastic member is connected between the moving contact plate 120 and the contact support 110 to provide a certain buffer force for the process of contact or separation between the moving contact plate 120 and the stationary contact 210.
[0035] Among them, Figure 4 As shown, both opposite ends of the moving contact plate 120 are bent toward the same side, wherein both opposite ends of the moving contact plate 120 can be bent toward the side away from the stationary contact 210, or can be bent toward the side close to the stationary contact 210, so that the moving contact plate 120 is roughly in a V-shaped structure. When the moving contact plate 120 is connected to the stationary contact 210, a repulsive force will be generated, and the bent V-shaped structure of the moving contact plate 120 can decompose the generated repulsive force into the horizontal direction and the vertical direction along the normal direction, thereby making the repulsive force generated by the contact point in the direction perpendicular to the moving direction of the contact bracket 110 opposite to each other and offset each other, so that the total repulsive force of the moving contact structure 100 is reduced, and the short-term resistance index is improved.
[0036] It should be noted that the number of the moving contact plate 120 can be one or two. Figure 2When there are two movable contact plates 120, the two movable contact plates 120 are spaced apart and arranged at one end of the contact support 110 close to the stationary contact 210, and are parallel to each other. The number of the stationary contacts 210 corresponds to the number of the movable contact plates 120, and the contact support 110 can simultaneously drive the two movable contact plates 120 to contact or separate from the stationary contacts 210.
[0037] The moving contact structure 100 provided in the present application includes a contact bracket 110 and a moving contact plate 120 fixedly connected to the contact bracket 110. The contact bracket 110 can be driven to drive the moving contact plate 120 to contact or separate from the stationary contact 210 of the contact system 200; the opposite ends of the moving contact plate 120 are bent toward the same side, and the bending parts of the opposite ends of the moving contact plate 120 are respectively provided with moving contacts 124 on the side facing the stationary contact 210. The moving contact structure 100 obtained by the above design bends the two opposite ends of the moving contact plate 120 toward the same side, so that the repulsive force generated by the contact in the direction perpendicular to the movement direction of the contact bracket 110 is opposite in direction and cancels each other out, thereby reducing the total repulsive force of the moving contact structure 100 and improving the short-circuit withstand index; at the same time, the bent moving contact structure 100 makes arcing smoother, which is conducive to the rapid entry of the arc into the arc extinguishing chamber 300, and is more convenient for the arrangement of the arc extinguishing chamber 300 of the low-voltage switch, thereby improving the space utilization rate of the low-voltage switch.
[0038] In a possible implementation scheme of the present application, the moving contact plate 120 includes a first moving touch plate 122 and a second moving touch plate 123, and the first moving touch plate 122 and the second moving touch plate 123 are respectively connected to the contact bracket 110; the first moving touch plate 122 and the second moving touch plate 123 are respectively arranged at two ends of the contact bracket 110, and there is a preset angle θ between the first moving touch plate 122 and the second moving touch plate 123, wherein the value range of θ is 90°-150°.
[0039] Specifically, Figure 3 As shown, the moving contact plate 120 includes a first moving contact plate 122 and a second moving contact plate 123, which are respectively arranged at two ends of the contact support 110 and extend outward to form a V-shaped structure. When the contact support 110 drives the moving contact plate 120 to move, the first moving contact plate 122 and the second moving contact plate 123 can contact or separate from the stationary contact 210.
[0040] It should be noted that the moving contact plate 120 may also include a first connecting portion 121, wherein the first connecting portion 121 is used to be fixedly connected to the contact bracket 110 so as to connect the moving contact plate 120 to the contact bracket 110; the first moving touch plate 122 and the second moving touch plate 123 are respectively arranged at both ends of the first connecting portion 121 and extend outward, and when the contact bracket 110 drives the moving contact plate 120 to move, the first moving touch plate 122 and the second moving touch plate 123 can contact or separate from the static contact 210.
[0041] There is a preset angle θ between the first moving contact plate 122 and the second moving contact plate 123, wherein the value range of θ is 90°-150°. This range can ensure good contact between the moving contact plate 120 and the stationary contact 210 while having a good effect of reducing repulsion.
[0042] Through such an arrangement, it is ensured that the moving contact plate 120 is fixedly connected to the contact bracket 110 through the first connecting portion 121, and it is also ensured that the first moving contact plate 122 and the second moving contact plate 123 have a preset angle with the first connecting portion 121, so that the repulsive force can be decomposed into horizontal and vertical directions along the normal direction, so that the components of the repulsive force in the direction perpendicular to the movement direction of the contact bracket 110 are opposite and offset each other, thereby improving the contact stability and service life of the static contact 210 and the moving contact plate 120.
[0043] In a possible implementation scheme of the present application, the ends of the first moving contact plate 122 and / or the second moving contact plate 123 of the moving contact plate 120 are arranged on one side of the arc extinguishing chamber 300 of the low-voltage switch, and the arrangement direction of the moving contact plate 120 and the arc extinguishing chamber 300 is parallel to the arrangement direction of the first moving contact plate 122 and the second moving contact plate 123; the end of the moving contact plate 120 can strike an arc to the arc extinguishing chamber 300.
[0044] Specifically, the opposite ends of the moving contact plate 120 are bent toward the same side. When the low-voltage switch is laid out, the moving contact structure 100 can be placed on one side of the arc extinguishing chamber 300, so that the bent end of the moving contact plate 120 is opposite to the arc extinguishing chamber 300, so that the arc can enter the arc extinguishing chamber 300 from the bent end of the moving contact plate 120 and be extinguished.
[0045] In a possible implementation manner of the present application, an arc striking angle is provided at an end of the first moving touch plate 122 and / or the second moving touch plate 123 away from one end of the first connecting portion 121 , and the arc striking angle is used for striking an arc.
[0046] Preferably, the orthographic projection of the arc striking angle is a triangular structure.
[0047] Specifically, the end of the first moving contact plate 122 and / or the second moving contact plate 123 of the present application away from the first connecting portion 121 is provided with an arc striking angle (not shown in the figure), and the arc striking angle is arranged in the direction of the arc extinguishing chamber 300. When the moving contact plate 120 contacts the static contact 210, the arc striking angle can introduce the arc into the arc extinguishing chamber 300 and extinguish the arc. Since the first moving contact plate 122 and the second moving contact plate 123 are bent along the side away from the static contact 210, their V-shaped structure can more easily guide the arc into the arc extinguishing chamber 300, thereby improving the arc extinguishing efficiency and arc extinguishing reliability.
[0048] The orthographic projection of the arc striking angle is a triangular structure (not shown in the figure), and the vertex of the triangular structure can be arranged toward the arc extinguishing chamber 300, so as to guide the arc into the arc extinguishing chamber 300 and extinguish the arc. It should be noted that, in addition to the triangular structure, the orthographic projection of the arc striking angle can also be other shapes, such as a rhombus, as long as it can facilitate the arc to be guided into the arc extinguishing chamber 300.
[0049] Another aspect of the present invention provides a contact system 200 , including a stationary contact 210 and the above-mentioned moving contact structure 100 . The stationary contact 210 is disposed at a position corresponding to the moving contact plate 120 of the moving contact structure 100 .
[0050] Specifically, the present application also provides a contact system 200, which includes a static contact 210 and a moving contact structure 100, wherein the moving contact plate 120 of the moving contact structure 100 can contact or separate from the static contact 210; the position of the static contact 210 corresponds to the position of the moving contact plate 120 of the moving contact structure 100, and the structures are adapted, and are roughly V-shaped structures, so that the moving contact plate 120 can be well in contact with the static contact 210. Among them, the specific structure and beneficial effects of the moving contact structure 100 have been described in detail above, and will not be repeated here. The contact system 200 obtained by the above design can reduce the repulsive force when the moving contact plate 120 contacts the static contact 210, thereby improving the short-term resistance index; at the same time, the arcing of the bent moving contact structure 100 is smoother and smoother, which is conducive to the rapid entry of the arc into the arc extinguishing chamber 300, and is more convenient for the arrangement of the arc extinguishing chamber 300 of the low-voltage switch, thereby improving the space utilization rate of the low-voltage switch.
[0051] For example, the stationary contact 210 includes two stationary contacts 214 , and two moving contacts 124 are provided on one side of the moving contact plate 120 facing the stationary contact 210 . The distance between the two stationary contacts 214 is equal to the distance between the two moving contacts 124 , so that the stationary contacts 214 can be connected to the moving contacts 124 .
[0052] Specifically, Figure 5 As shown, the stationary contact 210 includes two stationary contacts 214, and the side of the moving contact plate 120 facing the stationary contact 210 is also correspondingly provided with two moving contacts 124. When the moving contact plate 120 contacts the stationary contact 210, the two moving contacts 124 can contact the two stationary contacts 214 to achieve circuit conduction.
[0053] In order to make the connection process between the moving contact plate 120 and the static contact 210 more stable and reliable, the spacing between the two static contacts 214 should be equal to the spacing between the two moving contacts 124. This setting method can ensure that the static contact 214 can be stably and well connected to the moving contact 124 even if the moving contact plate 120 and the static contact 210 are both V-shaped structures.
[0054] In one possible implementation of the present application, the stationary contact 210 includes a first stationary contact plate 212 and a second stationary contact plate 213, the ends of the first stationary contact plate 212 and the second stationary contact plate 213 are connected to form a whole, or the first stationary contact plate 212 and the second stationary contact plate 213 are arranged at intervals; the first stationary contact plate 212 and the second stationary contact plate 213 correspond to the first moving contact plate 122 and the second moving contact plate 123 of the moving contact plate 120, and the two stationary contact points 214 are respectively arranged on one side of the first stationary contact plate 212 and the second stationary contact plate 213 close to the moving contact structure 100. Among them, the contact system 200 can also be configured to include multiple groups of stationary contacts 210 arranged side by side and multiple groups of corresponding moving contact plates 120, the stationary contacts 210 correspond to the moving contact plates 120 one by one, and each moving contact plate 120 can contact or separate with a corresponding stationary contact 210. Among them, the static contact 210 can be a structure in which the ends of the first static contact plate 212 and the second static contact plate 213 are connected to form an integral whole, or it can also be a structure in which the first static contact plate 212 and the second static contact plate 213 are arranged at intervals; and the structure of the moving contact plate 120 is compatible with the structure of the static contact 210.
[0055] Specifically, Figure 5 As shown, the stationary contact 210 includes a first stationary contact plate 212 and a second stationary contact plate 213 , and the first stationary contact plate 212 and the second stationary contact plate 213 correspond in position and angle to the first moving contact plate 122 and the second moving contact plate 123 of the moving contact plate 120 .
[0056] The ends of the first stationary touch plate 212 and the second stationary touch plate 213 are connected to form a whole, or the first stationary touch plate 212 and the second stationary touch plate 213 are arranged at intervals. Through such an arrangement, the first stationary touch plate 212 and the second stationary touch plate 213 can be an integrated structure or arranged separately, and can be adjusted accordingly according to the actual layout, but can still maintain the adaptation to the structure of the moving contact plate 120, thereby improving the connection stability of the contact system 200.
[0057] It should be noted that the stationary contact 210 may further include a second connection portion 211, and the first stationary touch plate 212 and the second stationary touch plate 213 are respectively connected to opposite sides of the second connection portion 211, so that the first stationary touch plate 212, the second connection portion 211 and the second stationary touch plate 213 are connected to form a whole, and the arrangement of the second connection portion 211 should correspond to the arrangement of the first connection portion 121. The first stationary touch plate 212 and the second stationary touch plate 213 both have a preset angle with the second connection portion 211, so that the first stationary touch plate 212 and the second stationary touch plate 213 are respectively adapted to the positions and structures of the first moving touch plate 122 and the second moving touch plate 123, so as to ensure that the moving contact plate 120 and the stationary contact 210 can be stably connected.
[0058] Furthermore, the contact system 200 also includes a magnetizing block (not shown in the figure). When the ends of the first stationary contact plate 212 and the second stationary contact plate 213 are connected as a whole, a magnetizing block is provided on the side of the stationary contact 210 facing away from the moving contact plate 120; or, a magnetizing block is provided on the side of the stationary contact 210 and the moving contact plate 120 facing away from each other.
[0059] When the first stationary contact plate 212 and the second stationary contact plate 213 are arranged at intervals, magnetizing blocks are provided on both sides of the moving contact plate 120 close to and away from the stationary contact 210 .
[0060] The specific layout of the magnetizing block can be adjusted accordingly according to the specific configuration of the stationary contact 210 and the moving contact plate 120. By configuring the magnetizing block, the mutual attraction between the moving contact plate 120 and the stationary contact 210 during the connection process can be enhanced, so as to further improve the stability and reliability of the contact system 200.
[0061] The above description is only an optional embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
[0062] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.
Claims
1. A moving contact structure, characterized in that: The invention comprises a contact support (110) and a movable contact plate (120) fixedly connected to the contact support (110); the contact support (110) is driven to drive the movable contact plate (120) to contact or separate from a stationary contact (210) of a contact system (200); both opposite ends of the movable contact plate (120) are bent toward the same side; and movable contacts (124) are respectively provided at the bent portions of the opposite ends of the movable contact plate (120) facing the side of the stationary contact (210).
2. The moving contact structure according to claim 1, characterized in that: The opposite ends of the moving contact plate (120) are both bent toward a side away from the stationary contact (210).
3. The moving contact structure according to claim 1, characterized in that: The opposite ends of the moving contact plate (120) are both bent toward a side close to the stationary contact (210).
4. The moving contact structure according to any one of claims 1 to 3, characterized in that: The bent portion of the moving contact plate (120) comprises a first moving touch plate (122) and a second moving touch plate (123), wherein the first moving touch plate (122) and the second moving touch plate (123) are respectively connected to the contact support (110); the first moving touch plate (122) and the second moving touch plate (123) are respectively arranged at two ends of the contact support (110), and a preset angle θ is formed between the first moving touch plate (122) and the second moving touch plate (123), wherein the value range of θ is 90°-150°.
5. The moving contact structure according to claim 2 or 3, characterized in that: The end of the first moving contact plate (122) and / or the second moving contact plate (123) of the moving contact plate (120) is arranged on one side of the arc extinguishing chamber (300) of the low-voltage switch; the arrangement direction of the moving contact plate (120) and the arc extinguishing chamber (300) is parallel to the arrangement direction of the first moving contact plate (122) and the second moving contact plate (123); the end of the moving contact plate (120) can strike an arc to the arc extinguishing chamber (300).
6. A contact system, characterized in that: It comprises a static contact (210) and a dynamic contact structure (100) as claimed in any one of claims 1 to 5, wherein the position of the static contact (210) is arranged corresponding to the dynamic contact plate (120) of the dynamic contact structure (100); the static contact (210) comprises two static contacts (214), and two dynamic contacts (124) are arranged on one side of the dynamic contact plate (120) facing the static contact (210), and the spacing between the two static contacts (214) is equal to the spacing between the two dynamic contacts (124), so that the static contact (214) can be connected to the dynamic contact (124).
7. The contact system according to claim 6, characterized in that: The stationary contact (210) comprises a first stationary touch plate (212) and a second stationary touch plate (213); the ends of the first stationary touch plate (212) and the second stationary touch plate (213) are connected to form a whole, or the first stationary touch plate (212) and the second stationary touch plate (213) are arranged at intervals; the first stationary touch plate (212) and the second stationary touch plate (213) correspond to the first moving touch plate (122) and the second moving touch plate (123) of the moving contact plate (120); and the two stationary contact points (214) are respectively arranged on one side of the first stationary touch plate (212) and the second stationary touch plate (213) close to the moving contact structure (100).
8. The contact system according to claim 6, characterized in that: The contact system (200) comprises a plurality of groups of stationary contacts (210) arranged side by side and a plurality of groups of correspondingly arranged moving contact plates (120), wherein the stationary contacts (210) correspond to the moving contact plates (120) one by one; the stationary contacts (210) comprise a first stationary touch plate (212) and a second stationary touch plate (213), wherein the ends of the first stationary touch plate (212) and the second stationary touch plate (213) are connected to form a whole, or the first stationary touch plate (212) and the second stationary touch plate (213) are arranged at intervals; and the first moving touch plate (122) and the second moving touch plate (123) of the moving contact plate (120) are adapted to the structures of the first stationary touch plate (212) and the second stationary touch plate (213).
9. The contact system according to claim 8, characterized in that The contact system (200) further comprises a magnetizing block, and when the ends of the first stationary contact plate (212) and the second stationary contact plate (213) are connected to form a whole, the magnetizing block is arranged on the side of the stationary contact (210) facing away from the moving contact plate (120); or, the magnetizing block is arranged on the side of the stationary contact (210) and the moving contact plate (120) facing away from each other.
10. The contact system according to claim 8, characterized in that The contact system (200) further comprises a magnetizing block, and when the first stationary contact plate (212) and the second stationary contact plate (213) are arranged at intervals, the magnetizing block is provided on both sides of the moving contact plate (120) close to and away from the stationary contact (210).