A load switch

Abstract

The utility model relates to a load switch relates to low voltage electrical apparatus technical field. The load switch includes mounting plate, base, electromagnetic system and moving contact component, and the electromagnetic system includes armature assembly, the mounting plate includes the plate body, and the plate body can be connected with the base and insert, the plate body is equipped with first shaft hole and second shaft hole, and the first shaft hole is used for with the pivot of moving contact component cooperation, and the second shaft hole is used for with the pivot of armature assembly cooperation. The load switch can improve the assembly efficiency, guarantees the synchronism of armature assembly and moving contact component movement.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical technology, and more specifically, to a load switch. Background Technology

[0002] The mounting plate of the load switch is a core component that ensures the accuracy of the mechanism's operation. It must bear the positioning function of moving parts and the limiting function of the overall structure.

[0003] In existing technologies, the mounting plate only has the first shaft hole for the armature shaft, while the second shaft hole for the moving contact relies on an independent structure on the bottom surface of the housing. This results in multiple alignments during assembly, which can easily lead to cumulative errors. Furthermore, the mounting plate positioning post needs to mate with the partition positioning groove, but the partition is easily deformed by electromagnetic force, affecting the stability of the limit position. Moreover, the split shaft hole design makes it difficult to precisely control the coordination of the moving contact and the armature movement, resulting in defects such as complex assembly processes and insufficient synchronization of rotating parts. Utility Model Content

[0004] The purpose of this invention is to provide a load switch that can improve assembly efficiency and ensure the synchronization of rotating parts.

[0005] The embodiments of this utility model are implemented as follows:

[0006] In one aspect, this utility model provides a load switch, including a mounting plate, a base, an electromagnetic system, and a moving contact assembly. The electromagnetic system includes an armature assembly. The mounting plate includes a plate body that can be inserted and connected to the base. The plate body is provided with a first shaft hole and a second shaft hole. The first shaft hole is used to cooperate with the rotating shaft of the moving contact assembly, and the second shaft hole is used to cooperate with the rotating shaft of the armature assembly.

[0007] Optionally, the first shaft hole and the second shaft hole are respectively provided on opposite sides of the plate, and the axes of the first shaft hole and the second shaft hole are parallel to each other.

[0008] Optionally, the plate body is also provided with a magnetizing block mounting groove, which extends to the base of the load switch and runs through the thickness direction of the plate body.

[0009] Optionally, the plate is provided with positioning posts, which can be inserted into corresponding positioning holes on the base to fix the base to the mounting plate.

[0010] Optionally, the plate is provided with positioning holes, which can be fitted onto the outside of the corresponding positioning posts on the base, so as to fix the base and the mounting plate together.

[0011] Optionally, the number of positioning posts is multiple, and the multiple positioning posts are arranged at intervals around the perimeter of the plate.

[0012] Optionally, there are multiple positioning holes, which are arranged at intervals around the periphery of the plate and extend through the thickness of the plate.

[0013] Optionally, the magnetizing block mounting slot is located between the first shaft hole and the second shaft hole.

[0014] Optionally, the load switch also includes a lead-out bus for connecting to an external circuit; the moving contact assembly includes a moving contact, the conductive end of which is electrically connected to the lead-out bus via at least two flexible connections.

[0015] Optionally, the load switch also includes a top cover that can be fastened to the base to form a receiving cavity, in which the electromagnetic system, moving contact assembly, and mounting plate are disposed; the electromagnetic system also includes a magnetic circuit assembly, which includes a coil and a yoke; the magnetic circuit assembly is used to drive the armature assembly to move, so that the rotating shaft of the armature assembly rotates relative to the second shaft hole.

[0016] The beneficial effects of this utility model include:

[0017] This application provides a load switch, including a mounting plate, a base, an electromagnetic system, and a moving contact assembly. The electromagnetic system includes an armature assembly. The mounting plate includes a plate body that can be inserted into the base. This insertion connection facilitates installation and disassembly, improving assembly efficiency. The plate body has a first shaft hole and a second shaft hole. The first shaft hole mates with the rotating shaft of the moving contact assembly, and the second shaft hole mates with the rotating shaft of the armature assembly. By providing two shaft holes on the same plate body, the previously dispersed shaft holes on the mounting plate and the bottom surface of the housing are integrated, avoiding the problems caused by the separate shaft hole design in the prior art. This reduces the number of alignment steps during assembly, lowers cumulative errors, and improves assembly accuracy. The aforementioned load switch improves assembly efficiency and ensures the synchronization of the movement of the armature assembly and the moving contact assembly. Attached Figure Description

[0018] 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.

[0019] Figure 1 One of the structural schematic diagrams of the load switch provided in the embodiment of this utility model;

[0020] Figure 2 A schematic diagram of the structure of the mounting plate for the load switch provided in an embodiment of this utility model;

[0021] Figure 3A second schematic diagram of the structure of the load switch provided in this embodiment of the utility model;

[0022] Figure 4 A schematic diagram showing the connection between the moving contact assembly of the load switch and the lead-out discharge circuit provided in this embodiment of the utility model.

[0023] Icons: 100-Load switch; 110-Mounting plate; 111-First shaft hole; 112-Second shaft hole; 113-Magnetic block mounting slot; 114-Positioning post; 210-Base; 211-Positioning hole; 220-Lead-out bar; 230-Moving contact assembly; 231-Moving contact; 240-Armature assembly; 250-Flexible connection; a-Thickness direction. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] Please refer to Figure 1 and Figure 2 This embodiment provides a load switch 100, including a mounting plate 110, a base 210, an electromagnetic system, and a moving contact assembly 230. The electromagnetic system includes an armature assembly 240. The mounting plate 110 includes a plate body that can be inserted and connected to the base 210. The plate body is provided with a first shaft hole 111 and a second shaft hole 112. The first shaft hole 111 is used to cooperate with the rotating shaft of the moving contact assembly 230, and the second shaft hole 112 is used to cooperate with the rotating shaft of the armature assembly 240.

[0030] Specifically, such as Figure 1 and Figure 2 As shown, the mounting plate 110 includes a plate body, on which a first shaft hole 111 and a second shaft hole 112 are integrated. The rotating shaft of the moving contact assembly 230 can be inserted into the first shaft hole 111. The first shaft hole 111 provides precise positioning and support for the rotating shaft of the moving contact assembly 230, allowing the moving contact assembly 230 to rotate around a fixed axis. This ensures the positional accuracy of the moving contact 231 during the opening and closing process, which is beneficial for achieving reliable contact and separation between the moving contact 231 and the stationary contact, thereby improving the switching performance and electrical performance of the load switch 100.

[0031] like Figure 1 and Figure 2 As shown, the shaft of the armature assembly 240 can be inserted into the second shaft hole 112. The second shaft hole 112 provides precise positioning and support for the shaft of the armature assembly 240, ensuring that the armature assembly 240 can rotate stably. This helps to ensure the accuracy and repeatability of the armature assembly 240 during operation, thereby improving the operating accuracy and response speed of the load switch 100.

[0032] Existing mounting plates only have a first shaft hole for the armature shaft, while the second shaft hole for the moving contact relies on a separate structure on the bottom surface of the housing. This results in multiple alignment steps during assembly, which can easily lead to cumulative errors. To solve the above problems, the mounting plate 110 of this application integrates the shaft holes that were originally scattered on the mounting plate 110 and the bottom surface of the housing, avoiding the problems caused by the separate shaft hole design in the prior art. This reduces the number of alignment steps during assembly, reduces cumulative errors, and improves assembly accuracy.

[0033] Furthermore, the positioning post 114 of the mounting plate 110 needs to mate with the positioning groove of the partition plate, but the partition plate is easily deformed by electromagnetic force, affecting the stability of the limit position. Moreover, the split shaft hole design makes it difficult to accurately control the coordination between the moving contact 231 and the armature, resulting in defects such as complex assembly process and insufficient synchronization of rotating parts. To solve the above problems, this application directly adopts the connection method of the mounting plate 110 and the base 210 by plugging them together, eliminating the connection method of the mounting plate 110 mates with the partition plate, thereby simplifying the assembly process and improving assembly efficiency.

[0034] It should be noted that, as Figure 2 As shown, in one possible embodiment of this application, the first shaft hole 111 and the second shaft hole 112 are respectively disposed on opposite sides of the plate, and the axes of the first shaft hole 111 and the second shaft hole 112 are parallel to each other.

[0035] Specifically, such as Figure 2 As shown, the first shaft hole 111 and the second shaft hole 112 are respectively located on opposite sides of the plate, which can make more rational use of the space of the mounting plate 110, making the armature assembly 240 and the moving contact assembly 230 more evenly distributed in space, avoiding mutual interference between components, and contributing to the compact design of the internal structure of the load switch 100. At the same time, the arrangement on opposite sides facilitates the assembly process and makes it easy to disassemble and replace individual components during later maintenance without affecting other components.

[0036] The structure of the opposite sides of the plate can be adjusted according to the arrangement of other components. For example, the side of the plate used to set the first shaft hole 111 can be a rectangular structure, a triangular structure, an irregular shape, etc. Similarly, the side of the plate used to set the second shaft hole 112 can also be a rectangular structure, a triangular structure, an irregular shape, etc. This application does not impose any restrictions on the specific structure of the plate.

[0037] The axes of the first shaft hole 111 and the second shaft hole 112 are parallel to each other, which enables the two components to maintain the same plane and direction of motion during rotation. This facilitates precise control of their motion synchronization, making the movement of the moving contact 231 and the armature more coordinated, thereby improving the performance and reliability of the load switch 100, and also reducing machining and assembly errors.

[0038] The aforementioned load switch 100 includes a mounting plate 110, a base 210, an electromagnetic system, and a moving contact assembly 230. The electromagnetic system includes an armature assembly 240. The mounting plate 110 includes a plate body that can be inserted into the base 210. This insertion connection facilitates installation and disassembly, improving assembly efficiency. The plate body has a first shaft hole 111 and a second shaft hole 112. The first shaft hole 111 is used to engage with the rotating shaft of the moving contact assembly 230, and the second shaft hole 112 is used to engage with the rotating shaft of the armature assembly 240. By providing two shaft holes on the same plate body, the shaft holes that are scattered on the mounting plate and the bottom surface of the housing in the prior art are integrated together, avoiding the problems caused by the separate shaft hole design in the prior art. This reduces the number of alignment steps during assembly, reduces cumulative errors, and improves assembly accuracy. The aforementioned load switch 100 can improve assembly efficiency and ensure the synchronization of the movement of the armature assembly 240 and the moving contact assembly 230.

[0039] For example, such as Figure 2 As shown, the plate is also provided with a magnetizing block mounting groove 113, which extends to the base 210 of the load switch 100 and runs through the plate along the thickness direction a.

[0040] Specifically, in order to optimize the magnetic field distribution inside the load switch 100, enhance the magnetic field strength, and thus improve the performance of the electromagnetic mechanism, making the armature assembly 240 and other components more sensitive and reliable, the plate is also provided with a magnetizing block mounting groove 113.

[0041] like Figure 2 As shown, the magnetizing block mounting groove 113 extends to the base 210 and forms a through groove, so that the magnetic field can form a closed magnetic circuit according to a preset path, reducing magnetic resistance, enhancing the effect of electromagnetic force, and improving overall performance.

[0042] Furthermore, setting the magnetizing block mounting slot 113 as a through structure facilitates the installation and removal of the magnetizing block. During installation, the magnetizing block can be placed into the mounting slot from either side of the plate. When maintaining or replacing the magnetizing block, it can also be removed more easily, improving the maintainability of the product.

[0043] Furthermore, in order to enable the magnetic field generated by the magnetizing block to act more directly and evenly on the armature assembly 240 and the moving contact assembly 230, the magnetizing block mounting groove 113 is located between the first shaft hole 111 and the second shaft hole 112. This allows the magnetic field to be better coupled to the moving parts of the armature assembly 240 and the moving contact assembly 230, enhancing the driving effect of the electromagnetic force on them, thereby improving the accuracy and synchronization of their actions and improving the overall performance of the load switch 100.

[0044] Meanwhile, this arrangement also makes full use of the space between the first shaft hole 111 and the second shaft hole 112 on the mounting plate 110, making the structural design of the mounting plate 110 more compact and reasonable. Within a limited space, installing the magnetizing block at the location where the magnetic field enhancement is most needed not only improves space utilization but also avoids interference with other components caused by improper installation of the magnetizing block, thus contributing to the miniaturization and lightweight design of the overall structure of the load switch 100.

[0045] It should be noted that this application does not impose any restrictions on the cross-sectional shape of the magnetizing block mounting groove 113. The cross-section of the mounting groove can be rectangular, circular, etc., as long as it is compatible with the structure of the magnetizing block.

[0046] In one possible implementation of this application, such as Figure 2 and Figure 3 As shown, a positioning post 114 is provided on the plate. The positioning post 114 can be inserted into the corresponding positioning hole 211 on the base 210 so that the base 210 is fixedly connected to the mounting plate 110.

[0047] The positioning post 114 provides an accurate positioning reference for the installation of the mounting plate 110 on the base 210. During the installation process, by inserting the positioning post 114 into the positioning hole 211 of the base 210, the position of the mounting plate 110 can be quickly determined, ensuring the relative positional accuracy between the mounting plate 110 and the base 210, avoiding any offset or tilting of the mounting plate 110, thereby ensuring the assembly accuracy of the various components inside the load switch 100.

[0048] In addition, this arrangement makes the installation process of the plate and the base 210 faster and simpler, reducing the need for repeated adjustments and alignment of the mounting plate 110 during assembly, saving assembly time and improving assembly efficiency.

[0049] Optionally, such as Figure 2 As shown, there are multiple positioning posts 114, which are arranged at intervals around the perimeter of the plate. Multiple positioning posts 114 can provide more uniform and distributed support and fixing force; at the same time, they can effectively limit the translation and rotation of the mounting plate 110 in the plane, and improve the positioning accuracy between the mounting plate 110 and the base 210.

[0050] It should be noted that, in addition to the method of providing positioning posts 114 on the plate and positioning holes 211 on the base 210 as described above, in another possible embodiment of this application, positioning holes 211 can also be provided on the plate. The positioning holes 211 can be fitted onto the outside of the corresponding positioning posts 114 on the base 210, so that the base 210 is fixedly connected to the mounting plate 110. This application does not impose any restrictions on the specific arrangement of the positioning holes 211 and positioning posts 114, as long as the insertion connection between the mounting plate 110 and the base 210 can be achieved.

[0051] Optionally, there are multiple positioning holes 211, which are spaced apart on the periphery of the plate and extend through the plate in the thickness direction a. Multiple positioning holes 211 can provide more uniform and distributed support and fixing force; at the same time, they can effectively limit the translation and rotation of the mounting plate 110 in the plane and improve the positioning accuracy between the mounting plate 110 and the base 210.

[0052] For example, such as Figure 3 and Figure 4 As shown, the load switch 100 also includes a lead-out bar 220 for connecting to an external circuit; the moving contact assembly 230 includes a moving contact 231, the conductive end of which is in conductive contact with the lead-out bar 220 through at least two flexible connections 250.

[0053] The load switch 100 needs to be connected to an external power system to achieve functions such as circuit control and protection. The lead-out bar 220 is used for external circuits to form a stable electrical connection between the load switch 100 and the external circuit.

[0054] In existing technologies, the moving contact typically uses a single, relatively thick flexible connection to connect to the lead-out outlet. This single, relatively thick flexible connection generates significant stress during the opening and closing movements of the moving contact, thus affecting the normal operation of the mechanism.

[0055] To solve the above problems, such as Figure 3 and Figure 4 As shown, the conductive end of the moving contact 231 of this application is in conductive contact with the lead-out bar 220 through at least two flexible connections 250, so that stress can be distributed to multiple flexible connections 250. Each flexible connection 250 can be made relatively thin, so that the stress generated by each flexible connection 250 during the movement of the moving contact 231 will be reduced, and the impact on the mechanism operation will be reduced accordingly.

[0056] Furthermore, existing technologies use a single flexible connector to electrically connect the conductive end of the moving contact to the lead-out terminal. If this flexible connector is damaged or has poor contact, it may lead to interruption of conductivity or increased contact resistance, affecting the normal operation of the load switch. In contrast, the load switch 100 of this application uses at least two flexible connectors 250 for conductive contact. Even if one flexible connector 250 malfunctions, the other flexible connectors 250 can still continue to conduct electricity, ensuring the reliability of the electrical connection between the moving contact 231 and the lead-out terminal 220.

[0057] For example, the load switch 100 also includes a top cover, which can be fastened with the base 210 to form a receiving cavity. The electromagnetic system, the moving contact assembly 230, and the mounting plate 110 are disposed in the receiving cavity to provide a certain protection for the electromagnetic system, the moving contact assembly 230, and the mounting plate 110, thereby improving the service life and reliability of the load switch 100. The electromagnetic system also includes a magnetic circuit assembly, which includes a coil and a yoke. The yoke is disposed outside the coil along the axial direction of the coil and can generate a magnetic field when the coil is energized. The magnetic circuit assembly can drive the armature assembly 240 to move under the action of the magnetic field, so that the rotating shaft of the armature assembly 240 rotates relative to the second shaft hole 112.

[0058] The above description is merely an optional 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.

[0059] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

Claims

1. A load switch, characterized in that, The device includes a mounting plate (110), a base (210), an electromagnetic system, and a moving contact assembly (230). The electromagnetic system includes an armature assembly (240). The mounting plate (110) includes a plate body that can be inserted and connected to the base (210). The plate body is provided with a first shaft hole (111) and a second shaft hole (112). The first shaft hole (111) is used to cooperate with the rotating shaft of the moving contact assembly (230), and the second shaft hole (112) is used to cooperate with the rotating shaft of the armature assembly (240).

2. The load switch according to claim 1, characterized in that, The first shaft hole (111) and the second shaft hole (112) are respectively disposed on opposite sides of the plate, and the axes of the first shaft hole (111) and the second shaft hole (112) are parallel to each other.

3. The load switch according to claim 1, characterized in that, The plate body is also provided with a magnetizing block mounting groove (113), which extends to the base (210) of the load switch (100) and passes through the thickness direction (a) of the plate body.

4. The load switch according to claim 1, characterized in that, The plate is provided with a positioning post (114), which can be inserted into the positioning hole (211) provided on the base (210) so that the base (210) is fixedly connected to the mounting plate (110).

5. The load switch according to claim 1, characterized in that, The plate is provided with a positioning hole (211), which can be sleeved on the outside of the corresponding positioning post (114) on the base (210) so that the base (210) is fixedly connected to the mounting plate (110).

6. The load switch according to claim 4, characterized in that, The number of positioning posts (114) is multiple, and the multiple positioning posts (114) are arranged at intervals around the periphery of the plate.

7. The load switch according to claim 5, characterized in that, The number of positioning holes (211) is multiple, and the multiple positioning holes (211) are arranged at intervals on the periphery of the plate and penetrate along the thickness direction (a) of the plate.

8. The load switch according to claim 3, characterized in that, The magnetizing block mounting groove (113) is located between the first shaft hole (111) and the second shaft hole (112).

9. The load switch according to claim 1, characterized in that, The load switch (100) further includes a lead-out bar (220) for connecting to an external circuit; the moving contact assembly (230) includes a moving contact (231), the conductive end of which is in conductive contact with the lead-out bar (220) through at least two flexible connections (250).

10. The load switch according to claim 1, characterized in that, The load switch (100) also includes a top cover, which can be fastened to the base (210) to form a receiving cavity. The electromagnetic system, the moving contact assembly (230) and the mounting plate (110) are disposed in the receiving cavity. The electromagnetic system also includes a magnetic circuit assembly, which includes a coil and a yoke. The magnetic circuit assembly is used to drive the armature assembly (240) to move, so that the shaft of the armature assembly (240) rotates relative to the second shaft hole (112).

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