Moving contact mechanism and switch

Abstract

The utility model provides a moving contact mechanism and a switch, and relates to the technical field of low-voltage apparatuses, the moving contact mechanism comprises a first support, a second support and a moving contact, the first support is provided with a first accommodating groove, the second support is provided with a second accommodating groove, the second support covers the first support, and the moving contact is arranged in the second accommodating groove. And the first accommodating groove and the second accommodating groove are enclosed to form an accommodating cavity for accommodating a moving contact. The moving contact comprises a first moving contact piece and a second moving contact piece which are oppositely arranged in the vertical direction, a clamping groove used for clamping the static contact is formed between the end of the first moving contact piece and the end of the second moving contact piece, the clamping groove extends out of the containing cavity, it is guaranteed that the clamping groove can make free contact with the static contact, and therefore circuit switching is achieved. In addition, a partition plate is clamped between the first movable contact piece and the second movable contact piece, so that the distance between the first movable contact piece and the second movable contact piece is kept unchanged, the distance between the clamping grooves is prevented from being too small, the partition plate is clamped in the containing cavity in the horizontal direction, stability is improved, and meanwhile disassembly and assembly are convenient.

Description

Technical Field

[0001] The present application relates to the technical field of low-voltage electrical appliances, and in particular to a moving contact mechanism and a switch. Background Art

[0002] A switch is a critical electrical device that connects and disconnects power within a circuit and is widely used in various fields, including homes, industry, commerce, and public facilities. Its basic function is to connect and disconnect circuits through manual or automatic control, thereby managing the transmission and use of electrical energy. Within the switch structure, the contact mechanism, as the core actuator, undertakes the critical task of connecting and disconnecting circuits and is one of the switch's most important components.

[0003] A contact mechanism typically consists of a fixed static contact and a moving contact that moves relative to the static contact. Effective coordination between the moving and static contacts is essential for switching the circuit on and off. To ensure stable movement of the moving contact, a moving contact bracket is typically installed within the switch, onto which the moving contact is fixedly mounted. By driving the moving contact bracket, the moving and static contacts come into contact or separate, ensuring reliable closing and opening of the switch.

[0004] In existing technology, the movable contact bracket is typically assembled from multiple parts. Its assembly and the mating process with the movable contact rely on a large number of connecting parts. While this design provides relatively stable structural support, it also makes the assembly process cumbersome and time-consuming, increasing manufacturing costs and limiting production efficiency, making it unsuitable for large-scale application. Utility Model Content

[0005] The purpose of this application is to provide a moving contact mechanism and a switch to address the deficiencies in the above-mentioned prior art.

[0006] To achieve the above objectives, the technical solutions adopted in the embodiments of the present application are as follows:

[0007] In one aspect of an embodiment of the present application, a moving contact mechanism is provided, comprising a first bracket, a second bracket, and a moving contact, wherein a first accommodating groove is provided on the first bracket, a second accommodating groove is provided on the second bracket, and the second bracket covers the first bracket so that the first accommodating groove and the second accommodating groove enclose a accommodating cavity for accommodating the moving contact;

[0008] The movable contact includes a first movable contact piece and a second movable contact piece arranged opposite to each other in a vertical direction, a clamping groove for clamping the static contact is formed between the end of the first movable contact piece and the end of the second movable contact piece, and the clamping groove extends outward from the accommodating cavity;

[0009] The movable contact mechanism further includes a partition detachably arranged between the first bracket and the second bracket, the partition is clamped between the first movable contact piece and the second movable contact piece along the vertical direction, and is clamped in the accommodating cavity along the horizontal direction.

[0010] Optionally, a first boss is provided on at least one side of the partition along the horizontal direction, a first groove cooperating with the first boss is provided on the side wall of the accommodating cavity, and the first boss abuts against the first groove.

[0011] Optionally, an elastic member is provided between the first moving contact piece and the first bracket, and / or an elastic member is provided between the second moving contact piece and the second bracket, and the second bracket covers the first bracket and drives the elastic member to store energy, so that the first moving contact piece and the second moving contact piece tend to approach each other.

[0012] Optionally, the elastic member is arranged between the first movable contact piece and the first bracket, a first limiting column is provided in the first accommodating groove, and one end of the elastic member facing away from the first movable contact piece is sleeved on the first limiting column.

[0013] Optionally, the elastic member is arranged between the second movable contact piece and the second bracket, a second limiting column is provided in the second accommodating groove, and one end of the elastic member facing away from the second movable contact piece is sleeved on the second limiting column.

[0014] Optionally, the moving contact mechanism further includes a connecting member, which is sequentially passed through the second bracket and the first bracket to fixedly connect the first bracket with the second bracket.

[0015] Optionally, a first concave-convex structure is provided on an outer wall surface of the first bracket and / or the second bracket on a side close to the static contact.

[0016] Optionally, the first concave-convex structure extends along the vertical direction.

[0017] Another aspect of an embodiment of the present application provides a switch, comprising a housing, a static contact, and any one of the above-mentioned moving contact mechanisms, wherein the moving contact mechanism is movably mounted on the housing, and the static contact is fixedly mounted on the housing.

[0018] Optionally, a second concave-convex structure is provided at a position of the housing close to the static contact.

[0019] The beneficial effects of this application include:

[0020] The present application provides a moving contact mechanism and a switch, wherein the moving contact mechanism includes a first bracket, a second bracket and a moving contact. A first accommodating groove is provided on the first bracket, and a second accommodating groove cooperating with the first accommodating groove is provided on the second bracket. When the second bracket covers the first bracket, the first accommodating groove and the second accommodating groove together enclose an accommodating chamber for stably placing the moving contact. The design of the accommodating chamber provides good protection and support for the moving contact, prevents the moving contact from being disturbed by external forces during movement, and ensures that the moving contact remains stable during the switch operation. The moving contact includes a first moving contact piece and a second moving contact piece arranged opposite to each other in the vertical direction, and a clamping groove is formed between the end of the first moving contact piece and the end of the second moving contact piece, and the clamping groove is used to cooperate with the static contact to complete the closing and opening operations of the circuit. The clamping groove extends outward from the accommodating chamber to ensure that it can freely contact the static contact, thereby realizing the switching of the circuit. In addition, the moving contact mechanism also includes a partition that is detachably arranged between the first bracket and the second bracket. The partition is clamped between the first moving contact piece and the second moving contact piece in the vertical direction to ensure that the distance between the two remains unchanged, avoiding the spacing of the clamping groove being too small, and the partition is clamped in the accommodating cavity in the horizontal direction, which improves stability and facilitates disassembly and assembly. Overall, this design firmly fixes the moving contact within the first bracket and the second bracket through a simple assembly method. Through the close cooperation of the first bracket, the second bracket and the partition, the moving contact can be stably installed without complex connecting parts. This structure simplifies the assembly process, reduces the tedious and time-consuming problems caused by the large number of connecting parts in the traditional solution, and greatly improves assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application 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 creative work.

[0022] Figure 1 This is one of the exploded views of a moving contact mechanism provided in an embodiment of the present application;

[0023] Figure 2 The second exploded view of a moving contact mechanism provided in an embodiment of the present application;

[0024] Figure 3 This is one of the structural diagrams of a moving contact mechanism provided in an embodiment of the present application;

[0025] Figure 4 for Figure 3 AA section view in;

[0026] Figure 5This is a second structural diagram of a moving contact mechanism provided in an embodiment of the present application;

[0027] Figure 6 This is a third structural diagram of a moving contact mechanism provided in an embodiment of the present application;

[0028] Figure 7 A schematic diagram of the structure of a switch provided in an embodiment of the present application.

[0029] Icon: 1-moving contact mechanism; 11-first bracket; 11a-first accommodating groove; 111-first limiting column; 12-second bracket; 12a-second accommodating groove; 121-second limiting column; 13-moving contact; 13a-clamping groove; 131-first moving contact piece; 132-second moving contact piece; 14-elastic member; 15-partition; 151-first boss; 152-first groove; 16-connecting member; 17-first concave-convex structure; 2-housing; 21-second concave-convex structure; 3-static contact. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0031] 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 present application as claimed, but merely represents selected embodiments of the present application. It should be noted that, unless there is a conflict, the various features of the embodiments of the present application may be combined with each other, and the combined embodiments are still within the scope of protection of the present application.

[0032] 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, it does not need to be further defined or explained in subsequent drawings.

[0033] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended only to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it 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 rather that it can be slightly tilted.

[0035] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0036] As the core device for energizing and de-energizing a circuit, a switch's fundamental functionality relies on the efficient operation of its contact mechanism. This contact mechanism consists of a stationary contact 3 and a moving contact 13, and their precise coordination is essential for circuit switching. To ensure stable movement of the moving contact 13, a moving contact bracket is typically installed within the switch. The moving contact 13 is mounted on this bracket and driven by the bracket to make and break contact, ensuring reliable circuit closing and opening.

[0037] However, the existing movable contact bracket is typically assembled from multiple parts, resulting in a complex assembly process. Furthermore, the installation of the movable contact 13 requires numerous connecting parts. While this design provides stable structural support, it results in a cumbersome and time-consuming assembly process, increasing manufacturing costs. Furthermore, the complex assembly process limits production efficiency, particularly during large-scale production. These issues significantly impact the manufacture and application of switches, necessitating a simplified structure to improve production efficiency and reduce costs.

[0038] In order to solve the above problems, one aspect of the embodiment of the present application provides a moving contact mechanism 1, which can be used in a switch and cooperates with the static contact 3 of the switch to realize circuit switching. Figures 1 to 7As shown, the static contact 3 is typically fixedly mounted within the switch housing 2, while the moving contact mechanism 1 is movably mounted within the switch housing 2. The switch is closed or opened by driving the moving contact mechanism 1 toward or away from the static contact 3. Of course, this application does not limit the movable mounting method of the moving contact mechanism 1. For example, it can be rotatably mounted within the switch housing 2 or slidably mounted within the switch housing 2. For ease of understanding, the following schematic description uses the rotation of the moving contact mechanism 1 as an example.

[0039] Specifically, if Figure 1 As shown, the movable contact mechanism 1 includes a first bracket 11, a second bracket 12, and a movable contact 13. A first accommodating groove 11a is provided on the first bracket 11, and a second accommodating groove 12a is provided on the second bracket 12 to cooperate with the first accommodating groove 11a. When the second bracket 12 is overlapped with the first bracket 11, the first accommodating groove 11a and the second accommodating groove 12a together enclose a accommodating cavity for securely placing the movable contact 13. The design of the accommodating cavity provides good protection and support for the movable contact 13, preventing it from being disturbed by external forces during movement and ensuring that the movable contact 13 remains stable during switching operation.

[0040] In the embodiment of the present application, the moving contact 13 is a clamping contact structure, and the moving contact 13 includes a first moving contact piece 131 and a second moving contact piece 132 arranged opposite to each other in the vertical direction. A clamping groove 13a is formed between the end of the first moving contact piece 131 and the end of the second moving contact piece 132. The clamping groove 13a is used to cooperate with the static contact 3 to complete the closing and opening operations of the circuit. The clamping groove 13a extends outward from the accommodating cavity, ensuring that it can freely contact the static contact 3, thereby realizing the switching of the circuit. It should be noted that the width of the clamping groove 13a along the clamping direction should match the thickness of the static contact 3. Therefore, when the switch is in the closed state, the static contact 3 is located in the clamping groove 13a, and the two sides of the static contact 3 are respectively in contact with the two inner wall surfaces of the clamping groove 13a, ensuring that the power supply can be stably connected.

[0041] The movable contact mechanism also includes a removable partition 15 disposed between the first bracket 11 and the second bracket 12. The partition 15 vertically clamps between the first movable contact piece 131 and the second movable contact piece 132 to maintain a constant spacing between them and prevent the spacing of the clamping groove 13a from being too small. The partition 15 is also horizontally clamped within the accommodating cavity, thereby improving stability and facilitating assembly and disassembly. It should be noted that the thickness of the partition 15 is precisely designed to be less than or equal to the vertical distance between the ends of the first movable contact piece 131 and the second movable contact piece 132. This design, through the partition 15, effectively prevents the movable contacts from getting too close or shifting, ensuring stable contact between the movable contact 13 and the stationary contact 3.

[0042] Overall, this design securely fastens the movable contact 13 within the first and second brackets 11, 12 through simple assembly. The tight fit between the first and second brackets 11, 12, and the partition 15 eliminates the need for complex connecting parts, ensuring a secure installation of the movable contact 13. This structure simplifies the assembly process, reducing the complexity and time-consuming nature of traditional solutions involving numerous connecting parts, significantly improving assembly efficiency.

[0043] It should be understood that the switch can be a circuit breaker or a transfer switch. When the switch is a circuit breaker, only one static contact 3 needs to be set in the circuit breaker, and a clamping groove 13a is set at the end of the moving contact 13 close to the static contact 3 to cooperate with the static contact 3 to close and open the circuit; when the switch is a transfer switch, clamping grooves 13a are set at both ends of the moving contact 13, and static contacts 3 are respectively set on the opposite sides of the moving contact 13, and the static contacts 3 are respectively connected to the normal power supply and the backup power supply. Thus, the switching of the moving contact 13 and multiple static contacts 3 is coordinated to ensure uninterrupted power supply.

[0044] During installation, the first bracket 11 is first stably fixed inside the switch, and then the first moving contact piece 131, the partition 15, and the second moving contact piece 132 are installed in sequence. The partition 15 is located between the two moving contacts, and plays a supporting and positioning role, ensuring that the moving contacts always maintain a suitable spacing in the accommodating cavity, and can simplify the positioning requirements of the moving contacts and reduce additional connecting parts. Finally, the second bracket 12 is covered on the first bracket 11 to further fix the position of the moving contact piece so that the side facing away from each other abuts against the first bracket 11 and the second bracket 12 respectively, thereby achieving a firm installation of the overall structure. The installation process is carried out in a modular manner, and each component is installed in sequence to ensure that the entire moving contact mechanism 1 can be assembled quickly and efficiently. This modular design can also greatly improve the efficiency of the production line and is conducive to standardized operations during large-scale production.

[0045] Alternatively, as Figure 1 As shown, a first boss 151 is provided on at least one side of the partition 15 in the horizontal direction, and a first groove 152 cooperating with the first boss 151 is provided on the side wall of the accommodating cavity. The first boss 151 abuts against the first groove 152, further enhancing the stability of the partition 15 in the accommodating cavity.

[0046] Specifically, a first boss 151 is provided on at least one side of the partition 15 perpendicular to the extension direction of the movable contact 13, and a first groove 152 is provided on the corresponding sidewall of the accommodating cavity. This ensures that the corners of the first boss 151 closely abut the corners of the first groove 152, ensuring reliable positioning. This design not only secures the partition 15 in the extension direction of the movable contact 13, but also provides a secure clamping effect in directions perpendicular to the extension direction of the movable contact 13. Therefore, the cooperation between the first boss 151 and the first groove 152 can achieve multi-directional support and fixation of the partition 15, effectively preventing the movable contact 13 from shaking or shifting within the accommodating cavity.

[0047] Optionally, the first bracket 11 and the second bracket 12 may be connected by snap connection or screw connection.

[0048] The snap-fit ​​connection uses a pre-designed slot and snap-fit ​​structure to quickly connect the first bracket 11 and the second bracket 12 during assembly. The snap-fit ​​method requires no additional connecting parts and achieves a secure connection thanks to the tight fit of the structure. This method is particularly suitable for mass production, significantly increasing assembly speed, reducing process complexity, and lowering production costs. Furthermore, the snap-fit ​​structure design allows for greater flexibility during assembly, facilitating subsequent maintenance or disassembly operations, making it suitable for scenarios that require high installation convenience and quick assembly and disassembly.

[0049] The screw connection method provides higher stability and durability. When the screw connection method is adopted, the moving contact mechanism 1 also includes an additional connecting member 16, such as a screw. Figure 1 and Figure 2 As shown, connector 16 passes through second bracket 12 and into first bracket 11, firmly securing the two together. While slightly more complex than a snap-on connection, screwing provides a more reliable fixation and is particularly suitable for equipment requiring long-term stable operation or operating in harsh environments. The mechanical locking provided by the screws ensures the connection between the two brackets will not loosen due to vibration or prolonged use, making it suitable for applications carrying high currents or frequent opening and closing.

[0050] Alternatively, as Figures 2 to 4As shown, an elastic member 14 is provided between the first movable contact piece 131 and the first bracket 11, and / or an elastic member 14 is provided between the second movable contact piece 132 and the second bracket 12. The elastic member 14 may be a coil spring, and the elastic member 14 is installed between the bracket and the movable contact piece through a pre-designed groove or fixed point. The elastic member 14 between the first bracket 11 and the first movable contact piece 131, and the elastic member 14 between the second bracket 12 and the second movable contact piece 132, respectively, serve to store energy during the installation process. When the second bracket 12 covers the first bracket 11, the elastic member 14 is compressed, thereby storing elastic energy. This structural design enables the movable contact piece to maintain a certain preload when it is not powered on or not fully operated, ensuring that the two movable contact pieces always tend to approach each other.

[0051] When the stationary contact 3 is inserted into the clamping groove 13a, the movable contact piece is moved inward by the elastic member 14, achieving precise clamping. Because the elastic member 14 can automatically adjust the position of the movable contact piece according to the thickness or contact angle of the stationary contact 3, this ensures that the contact surfaces between the stationary contact 3 and the two movable contact pieces always maintain good contact, thus reducing the problem of poor contact caused by mechanical wear or long-term use.

[0052] Furthermore, the provision of the elastic member 14 provides a good buffering effect. Under high loads or frequent operation, the frequent opening and closing of the movable contact piece may cause significant impact forces within the movable contact mechanism 1. The provision of the elastic member 14 effectively mitigates these impact forces, reducing mechanical wear between the movable contact piece and the bracket, thereby extending the service life of the entire device.

[0053] Optionally, the elastic member 14 is arranged between the first movable contact piece 131 and the first bracket 11, and a first limiting column 111 is provided in the first accommodating groove 11a. The end of the elastic member 14 facing away from the first movable contact piece 131 is sleeved on the first limiting column 111, thereby ensuring that the elastic member 14 can run along a predetermined path when compressed or released, avoiding unnecessary deviation or distortion.

[0054] Specifically, if Figure 4As shown, a first limiting post 111 is positioned on the first bracket 11 at a position corresponding to the end of the first movable contact piece 131, so that one end of the elastic member 14 is fixed to the first limiting post 111, while the other end abuts the end of the first movable contact piece 131. When subjected to external compression, the elastic member 14, constrained by the first limiting post 111, maintains a stable deformation direction. Its movement direction aligns with that of the movable contact piece, ensuring that the elastic force always acts on the first movable contact piece 131. This design enables the elastic member 14 to provide a continuous and uniform force during operation, pushing the first movable contact piece 131 toward the second movable contact piece 132, thereby ensuring a stable and reliable clamping force. The presence of the first limiting post 111 not only ensures the normal operation of the elastic member 14, but also prevents it from bending or slipping during repeated compression and release, thereby improving the operating accuracy of the device. Furthermore, the socket connection between the elastic member 14 and the first limiting post 111 is simple and effective, facilitating installation and maintenance, and significantly improving assembly efficiency and device reliability.

[0055] Optionally, the elastic member 14 is disposed between the second movable contact piece 132 and the second bracket 12 , a second limiting column 121 is disposed in the second accommodating groove 12 a , and one end of the elastic member 14 away from the second movable contact piece 132 is sleeved on the second limiting column 121 .

[0056] Specifically, if Figure 4 As shown, a second limiting post 121 is positioned on the second bracket 12 at a position corresponding to the end of the second movable contact piece 132, so that one end of the elastic member 14 is fixed to the second limiting post 121, while the other end abuts the end of the second movable contact piece 132. When subjected to external compression, the elastic member 14 maintains a stable deformation direction due to the constraint of the second limiting post 121, and its movement direction aligns with the movement of the movable contact piece, thereby ensuring that the elastic force always acts on the second movable contact piece 132. This design enables the elastic member 14 to provide a continuous and uniform force during operation, pushing the second movable contact piece 132 toward the first movable contact piece 131, thereby ensuring the stability and reliability of the clamping force. The presence of the second limiting post 121 not only ensures the normal operation of the elastic member 14, but also prevents the elastic member 14 from bending or slipping during repeated compression and release, thereby improving the operating accuracy of the device. Furthermore, the socket-type connection between the elastic member 14 and the second limiting post 121 is simple and effective, facilitating installation and maintenance, and significantly improving assembly efficiency and device reliability.

[0057] Preferably, if Figures 2 to 4As shown, an elastic member 14 is disposed between the first movable contact piece 131 and the first bracket 11, and an elastic member 14 is also disposed between the second movable contact piece 132 and the second bracket 12. This dual elastic member 14 structure provides dual elastic support during the movement of the movable contact piece, ensuring that the movable contact piece, in conjunction with the stationary contact 3, can more stably and accurately complete the opening and closing operation. Furthermore, to position and secure the elastic member 14, a first limiting post 111 is provided on the first bracket 11, and a second limiting post 121 is provided on the second bracket 12. The elastic member 14 disposed between the first bracket 11 and the first movable contact piece 131, and the elastic member 14 disposed between the second bracket 12 and the second movable contact piece 132, respectively, serve to push the two movable contact pieces toward each other. The first limiting post 111 and the second limiting post 121 act as guides and constraints during this process, ensuring that the elastic member 14 moves along a predetermined path during compression and release, thereby achieving precise displacement of the movable contact piece. This double elastic support design helps to provide a more uniform clamping force during the contact process between the moving contact 13 and the static contact 3, ensuring that the static contact 3 can be stably maintained between the two moving contact pieces without causing poor contact due to slight external force or vibration.

[0058] Alternatively, as Figure 5 and Figure 6 As shown, a first concave-convex structure 17 is provided on the outer wall surface of the first bracket 11 and / or the second bracket 12 on one side close to the static contact 3. The first concave-convex structure 17 can indirectly increase the creepage distance and enhance the anti-leakage capability of the equipment by increasing the effective length and complexity of the surface of the first bracket 11 and / or the second bracket 12. Among them, the first bracket 11 and / or the second bracket 12 are usually made of insulating materials to enable them to have electrical insulation protection functions. The first concave-convex structure 17 can specifically take the form of ribs, grooves, etc. The design of the ribs or grooves needs to be combined with the specific shape and size of the equipment to ensure that it does not affect the normal cooperation of the moving and static contacts 3 and can fully play the role of insulation protection.

[0059] Alternatively, as Figure 5 and Figure 6 As shown, the first concave-convex structure 17 extends in the vertical direction, which can further increase the length of the surface path, block potential leakage paths, and thus better improve the electrical insulation performance.

[0060] Another aspect of the present invention provides a switch. Figure 7 As shown, the switch comprises a housing 2, a static contact 3, and any of the above-mentioned movable contact mechanisms 1, wherein the movable contact mechanism 1 is movably mounted on the housing 2, and the static contact 3 is fixedly mounted on the housing 2. Since the switch adopts the above-mentioned movable contact mechanism 1, it also has the same beneficial effects as the movable contact mechanism 1, which will not be described in detail here.

[0061] Alternatively, as Figure 7As shown, a second concave-convex structure 21 is provided at a position near the static contact 3 of the housing 2. The second concave-convex structure 21 can indirectly increase the creepage distance and enhance the device's anti-leakage capability through the effective length and complexity of the housing 2 surface. The housing 2 is usually made of insulating material to provide electrical insulation protection. The second concave-convex structure 21 can specifically take the form of ribs, grooves, etc. The design of the ribs or grooves must be combined with the specific shape and size of the device to ensure that it does not affect the normal coordination of the moving and static contacts 3 while fully exerting the insulation protection function.

[0062] The present application also provides a power distribution device equipped with the aforementioned moving contact mechanism 1 and / or switch. The power distribution device can be equipped with at least one of the following: a distribution box, a cable, a distribution cabinet, a motor, a switch and socket, a lamp, an air conditioner, an electric water heater, an electric meter, a camera, a telephone, a computer, etc. Such power distribution equipment can utilize the moving contact mechanism 1 and / or switch-related structures of the present application to achieve intelligent management, but is not limited to the above-mentioned intelligently managed power distribution equipment and can also be used in non-intelligent power distribution equipment in traditional industries.

[0063] An embodiment of the present application also provides a power distribution device, in which the aforementioned moving contact mechanism 1 and / or switch is applied to the power distribution device. The power distribution device can be used in smart scenarios, in intelligent usage scenarios and in the Internet of Things industry to realize intelligent scenario management.

[0064] Optionally, the embodiments of the present application can be used for: fire-fighting electricity: fire control room, fire pumps, smoke exhaust facilities, fire elevators and their drainage pumps, fire emergency lighting, etc. Level 1; aisle lighting, duty lighting, guard lighting, obstacle sign lights; rail transit; security system power supply; electronic information room power supply; passenger elevator power; sewage pump; variable frequency speed regulation constant pressure water supply and domestic pump (otherwise it is a secondary load); main offices, conference rooms, general duty room, archives room.

[0065] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A moving contact mechanism, characterized in that: The invention comprises a first bracket (11), a second bracket (12), and a moving contact (13); a first accommodating groove (11a) is provided on the first bracket (11), a second accommodating groove (12a) is provided on the second bracket (12), and the second bracket (12) covers the first bracket (11), so that the first accommodating groove (11a) and the second accommodating groove (12a) enclose and form an accommodating cavity for accommodating the moving contact (13); The movable contact (13) comprises a first movable contact piece (131) and a second movable contact piece (132) arranged opposite to each other in a vertical direction, a clamping groove (13a) for clamping the stationary contact (3) is formed between the end of the first movable contact piece (131) and the end of the second movable contact piece (132), and the clamping groove (13a) extends outward from the accommodating cavity; The movable contact mechanism (1) further comprises a partition (15) detachably arranged between the first bracket (11) and the second bracket (12); the partition (15) is clamped between the first movable contact piece (131) and the second movable contact piece (132) in a vertical direction, and the partition (15) is clamped in the accommodating cavity in a horizontal direction.

2. The moving contact mechanism according to claim 1, characterized in that: A first boss (151) is provided on at least one side of the partition (15) in the horizontal direction, and a first groove (152) cooperating with the first boss (151) is provided on the side wall of the accommodating cavity, wherein the first boss (151) abuts against the first groove (152).

3. The moving contact mechanism according to claim 1 or 2, characterized in that: An elastic member (14) is provided between the first movable contact piece (131) and the first bracket (11), and / or the elastic member (14) is provided between the second movable contact piece (132) and the second bracket (12), and the second bracket (12) covers the first bracket (11) and drives the elastic member (14) to store energy, so that the first movable contact piece (131) and the second movable contact piece (132) have a tendency to approach each other.

4. The moving contact mechanism according to claim 3, characterized in that: The elastic member (14) is arranged between the first movable contact piece (131) and the first bracket (11), a first limiting column (111) is arranged in the first accommodating groove (11a), and one end of the elastic member (14) facing away from the first movable contact piece (131) is sleeved on the first limiting column (111).

5. The moving contact mechanism according to claim 3, characterized in that: The elastic member (14) is arranged between the second movable contact piece (132) and the second bracket (12), a second limiting column (121) is arranged in the second accommodating groove (12a), and one end of the elastic member (14) facing away from the second movable contact piece (132) is sleeved on the second limiting column (121).

6. The moving contact mechanism according to claim 1 or 2, characterized in that: The moving contact mechanism (1) further comprises a connecting member (16), wherein the connecting member (16) is sequentially passed through the second bracket (12) and the first bracket (11) to fixedly connect the first bracket (11) and the second bracket (12).

7. The moving contact mechanism according to claim 1 or 2, characterized in that: A first concave-convex structure (17) is provided on an outer wall surface of the first bracket (11) and / or the second bracket (12) on one side close to the static contact (3).

8. The moving contact mechanism according to claim 7, characterized in that: The first concave-convex structure (17) extends in a vertical direction.

9. A switch, characterized in that: It comprises a housing (2), a static contact (3) and a moving contact mechanism (1) according to any one of claims 1 to 8, wherein the moving contact mechanism (1) is movably mounted on the housing (2), and the static contact (3) is fixedly mounted on the housing (2).

10. The switch according to claim 9, characterized in that A second concave-convex structure (21) is provided at a position of the housing (2) close to the static contact (3).

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