Two-way independently controlled guide rail type button switch
By introducing independent front and rear cavity structures and buffer springs into the rail-mounted push-button switch, the problem of not being able to independently control multiple circuits in the prior art is solved, enabling flexible control of different power supplies and asynchronous loads, reducing space and cost, and improving the reliability and lifespan of the switch.
Patent Information
- Application Number
- CN202521915520.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-05
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2035-09-05
AI Technical Summary
Existing DIN rail push-button switches cannot achieve independent control of multiple circuits, which limits their application in complex control scenarios and increases the space occupied by the DIN rail and the complexity of wiring.
A dual-path independent control rail-type push-button switch was designed. The housing is divided into a front chamber and a rear chamber by a partition. Two moving rods are independently controlled to drive the moving contact and the stationary contact to make or break apart, respectively. A buffer spring is introduced to relieve mechanical shock.
It enables independent control of different power supplies or asynchronous operating loads, reduces rail mounting space and wiring complexity, extends contact life, and improves the flexibility and reliability of the switch.
Smart Images
Figure CN223552433U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a rail-mounted push-button switch, specifically a rail-mounted push-button switch with dual-channel independent control. Background Technology
[0002] A push-button switch is a basic electrical control component that uses a dual-channel independent control rail-mounted push-button switch to connect or disconnect a circuit through a pressing operation. It is widely used in industrial control cabinets, power distribution systems, and automated equipment to realize basic control functions such as starting and stopping electrical equipment and switching modes. Among them, rail-mounted push-button switches can be easily installed on standard rails, which greatly simplifies the installation and wiring process and improves the efficiency and flexibility of electrical integration. It has become one of the mainstream configurations in the modern industrial control field.
[0003] Current DIN rail push-button switches operate by simultaneously controlling all components connected to them when a button is pressed. This means that when an operator presses a button, the multiple circuits controlled by that button must be simultaneously turned on or off. Consequently, these controlled components can only maintain the same operating state (i.e., simultaneously on or simultaneously off), and cannot be controlled independently. This forced linkage mechanism of "one controlling many" greatly limits its application in complex control scenarios. For example, it is impossible to use a single switch module to independently control two loads with different power supplies, different voltage levels, or asynchronous operation. If users need to achieve separate control, they are forced to use two or more independent single-button switches installed in parallel. This undoubtedly increases the space occupied by the DIN rail, the complexity of wiring, and the overall cost, which violates the original intention of integrated design to pursue compactness, efficiency, and convenience. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a rail-mounted push-button switch with dual independent control.
[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a housing and a button, a partition, a moving rod, a return spring, a moving contact, and a stationary contact disposed within the housing. The partition is disposed within the housing and divides the housing into a front cavity and a rear cavity. The moving rod is slidably disposed on both sides of the partition and is located in the front cavity and the rear cavity. The two moving rods are independent of each other. The button is disposed on each moving rod. The return spring is disposed between the moving rod and the housing and drives the moving rod to return to its original position. The moving contact is disposed on the moving rod, and the stationary contact is disposed on the partition. The moving contact and the stationary contact have a contacting state and a disconnected state.
[0006] By adopting the above technical solution, the user presses or releases two buttons respectively, and each button independently drives its corresponding moving rod to slide in the front or rear cavity. When the moving rod moves against the force of the return spring, its moving contact moves along with it, realizing contact or separation with the stationary contact fixed on the partition. After releasing the button, the return spring pushes the moving rod and the button back to the initial position. The two moving rods, return spring and contact system are set completely independently, so that the on / off control of the two circuits does not interfere with each other. It allows users to independently control different power supplies, voltages or loads that require asynchronous operation with a compact switch, which greatly improves the flexibility of application, saves rail mounting space, and reduces the cost and wiring complexity caused by using multiple independent switches.
[0007] The present invention is further configured as follows: it also includes a buffer spring, the moving rod is provided with a vertical groove and extends laterally to connect, the moving contact has a fixed part located in the vertical groove and a contact head extending to both sides, the contact head is opposite to the stationary contact, and the buffer spring is provided in the vertical groove and drives the fixed part to abut against the bottom of the vertical groove.
[0008] By adopting the above technical solution, at the instant the moving contact moves with the moving rod and contacts the stationary contact, the fixed part of the moving contact can slightly compress the buffer spring in the vertical groove, generating a small buffer stroke instead of a rigid collision; the elasticity of the buffer spring ultimately ensures that the contact head and the stationary contact are in stable and reliable contact; the introduction of the buffer spring effectively absorbs and alleviates the mechanical impact force and electrical arc impact at the moment of contact closure, significantly reducing the bounce and wear of the contact material, thereby extending the electrical and mechanical life of the contact and even the entire switch, and improving the reliability and stability of the switch under frequent operation.
[0009] The present invention is further configured such that: the moving contact includes a normally open moving contact and a normally closed moving contact, the stationary contact includes a normally open stationary contact and a normally closed stationary contact, the normally open moving contact and the normally closed moving contact are disposed on the moving rod and located at different heights, the normally open stationary contact and the normally closed stationary contact are disposed on the partition and are respectively opposite to the normally open moving contact and the normally closed moving contact, when the button is not pressed, the normally open moving contact is separated from the normally open stationary contact, and the normally closed moving contact is abutted against the normally closed stationary contact.
[0010] By adopting the above technical solution, according to the initial state of the button, the normally closed moving contact and the normally closed stationary contact remain in contact, and the circuit is connected; the normally open moving contact and the normally open stationary contact remain separated, and the circuit is disconnected; when the button is pressed, the moving lever drives all the moving contacts to move together, so that the normally closed contacts separate, while the normally open contacts make contact; thus realizing the control function of one set of normally closed and one set of normally open.
[0011] The present invention is further configured to include a terminal, which is disposed on the housing and connected to the stationary contact.
[0012] By adopting the above technical solution, the external wires are connected to the terminals installed on the housing, and the terminals are electrically connected to the internal stationary contacts. When the moving contact is connected or disconnected from the stationary contact, the on / off state of the circuit is transmitted to the external circuit through the terminals.
[0013] The present invention is further configured such that: an L-shaped block is provided at the end of the movable rod, two L-shaped blocks form a rectangle, and a button is provided on the L-shaped block.
[0014] By adopting the above technical solution, the L-shaped block effectively saves internal space while connecting the button and the moving rod.
[0015] The present invention is further configured such that the button has a pressing part located outside the housing.
[0016] By adopting the above technical solution, users can directly apply pressure to the button pressing part exposed outside the housing to complete the switch operation. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the overall structure of the present invention, omitting the shell.
[0019] Figure 3 This is a schematic diagram of the moving rod and related components of this utility model.
[0020] In the diagram: 1. Housing; 10. Terminal; 11. Front cavity; 12. Rear cavity; 2. Button; 21. Pressing part; 3. Partition; 4. Moving rod; 41. Vertical groove; 5. Return spring; 6. Moving contact; 61. Normally open moving contact; 62. Normally closed moving contact; 7. Stationary contact; 71. Normally open stationary contact; 72. Normally closed stationary contact; 8. Buffer spring; 9. L-shaped block. Detailed Implementation
[0021] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0023] like Figure 1-3 As shown, this utility model discloses a dual-channel independent control rail-type push-button switch, including a housing 1 and a button 2, a partition 3, a moving rod 4, a return spring 5, a moving contact 6, and a stationary contact 7 disposed within the housing 1. The partition 3 is disposed within the housing 1 and divides the housing 1 into a front cavity 11 and a rear cavity 12. The moving rod 4 is slidably disposed on both sides of the partition 3 and is located in the front cavity 11 and the rear cavity 12. The two moving rods 4 are independent of each other. The button 2 is disposed on the moving rod 4. The return spring 5 is disposed between the moving rod 4 and the housing 1 and drives the moving rod 4 to return to its original position. The moving contact 6 is disposed on the moving rod 4, and the stationary contact 7 is disposed on the partition 3. The moving contact 6 and the stationary contact 7 have a contacting state and a disconnected state, respectively, which are pressed or released by the user. Two buttons 2, each independently driving its corresponding moving rod 4 to slide in the front cavity 11 or rear cavity 12; when the moving rod 4 moves against the force of the return spring 5, its moving contact 6 moves along with it, achieving contact or separation with the stationary contact 7 fixed on the partition 3; after releasing the button 2, the return spring 5 pushes the moving rod 4 and the button 2 back to the initial position; the two moving rods 4, the return spring 5 and the contact system are set completely independently, so that the on / off control of the two circuits does not interfere with each other; allowing users to independently control different power supplies, voltages or loads that require asynchronous operation with a compact switch, greatly improving the flexibility of the application, while saving DIN rail installation space and reducing the cost and wiring complexity caused by using multiple independent switches.
[0024] It also includes a buffer spring 8. The moving rod 4 is provided with a vertical groove 41 that extends laterally to connect. The moving contact 6 has a fixed part 63 located in the vertical groove 41 and a contact head 64 extending to both sides. The contact head 64 is opposite to the stationary contact 7. The buffer spring 8 is provided in the vertical groove 41 and drives the fixed part 63 to abut against the bottom of the vertical groove 41. At the moment when the moving contact 6 moves with the moving rod 4 and contacts the stationary contact 7, the fixed part 63 of the moving contact 6 can slightly compress the buffer spring 8 in the vertical groove 41 to produce a small buffer stroke instead of a rigid collision. The elasticity of the buffer spring 8 ultimately ensures that the contact head 64 and the stationary contact 7 make stable and reliable contact. The introduction of the buffer spring 8 effectively absorbs and alleviates the mechanical impact and electrical arc impact at the moment of contact closure, significantly reduces the bounce and wear of the contact material, thereby extending the electrical and mechanical life of the contact and even the entire switch, and improving the reliability and stability of the switch under frequent operation.
[0025] The moving contact 6 includes a normally open moving contact 61 and a normally closed moving contact 62, and the stationary contact 7 includes a normally open stationary contact 71 and a normally closed stationary contact 72. The normally open moving contact 61 and the normally closed moving contact 62 are disposed on the moving rod 4 at different heights. The normally open stationary contact 71 and the normally closed stationary contact 72 are disposed on the partition 3 and are respectively opposite to the normally open moving contact 61 and the normally closed moving contact 62. When the button 2 is not pressed, the normally open moving contact 61 is separated from the normally open stationary contact 71. Normally closed moving contact 62 abuts against normally closed stationary contact 72. According to the initial state of button 2, normally closed moving contact 62 and normally closed stationary contact 72 remain in contact, and the circuit is connected; normally open moving contact 61 and normally open stationary contact 71 remain separated, and the circuit is disconnected; when button 2 is pressed, moving lever 4 drives all moving contacts 6 to move together, so that normally closed contacts separate while normally open contacts make contact; thus realizing the control function of one set of normally closed and one set of normally open.
[0026] It also includes a terminal 10, which is disposed on the housing 1 and connected to the stationary contact 7. An external wire is connected to the terminal 10 mounted on the housing 1. The terminal 10 is electrically connected to the internal stationary contact 7. When the moving contact 6 is connected or disconnected from the stationary contact 7, the on / off state of the circuit is transmitted to the external line through the terminal 10.
[0027] An L-shaped block 9 is provided at the end of the moving rod 4. Two L-shaped blocks 9 form a rectangle. The button 2 is set on the L-shaped block 9. The setting of the L-shaped block 9 effectively saves the internal space occupied while connecting the button 2 and the moving rod 4.
[0028] Button 2 has a pressing part 21 located outside the housing 1. The user can directly apply pressure to the pressing part 21 of button 2 exposed outside the housing 1 to complete the switch operation.
[0029] Working process: The user operates two independent buttons 2 respectively. Button 2 drives the corresponding moving rod 4 to slide in the front cavity 11 or rear cavity 12 separated by the partition 3. The moving rod 4 compresses the return spring 5 and drives the moving contact 6 on it to move, so that the moving contact 6 contacts or separates from the stationary contact 7 fixed on the partition 3, thereby connecting or disconnecting the circuit. The buffer spring 8 absorbs the impact at the moment of contact. The moving contact 6 can be designed with different heights to achieve normally open or normally closed functions. The circuit status is transmitted to the outside through the terminal 10.
Claims
1. A rail-mounted push-button switch with dual-channel independent control, characterized in that: The device includes a housing (1) and a button (2), a partition (3), a moving rod (4), a return spring (5), a moving contact (6), and a stationary contact (7) disposed within the housing (1). The partition (3) is disposed within the housing (1) and divides the housing (1) into a front cavity (11) and a rear cavity (12). The moving rod (4) is slidably disposed on both sides of the partition (3) and is located in the front cavity (11) and the rear cavity (12). The two moving rods (4) are independent of each other. The button (2) is disposed on the moving rod (4). The return spring (5) is disposed between the moving rod (4) and the housing (1) and drives the moving rod (4) to return to its original position. The moving contact (6) is disposed on the moving rod (4). The stationary contact (7) is disposed on the partition (3). The moving contact (6) and the stationary contact (7) have a connected state of mutual contact and a disconnected state of mutual separation.
2. The rail-mounted push-button switch with dual-channel independent control according to claim 1, characterized in that: It also includes a buffer spring (8), a vertical groove (41) on the moving rod (4) and extending laterally to connect, the moving contact (6) has a fixed part (63) located in the vertical groove (41) and a contact head (64) extending to both sides, the contact head (64) is opposite to the stationary contact (7), the buffer spring (8) is located in the vertical groove (41) and drives the fixed part (63) to abut against the bottom of the vertical groove (41).
3. A rail-mounted push-button switch with dual-channel independent control according to claim 1, characterized in that: The moving contact (6) includes a normally open moving contact (61) and a normally closed moving contact (62), and the stationary contact (7) includes a normally open stationary contact (71) and a normally closed stationary contact (72). The normally open moving contact (61) and the normally closed moving contact (62) are mounted on the moving rod (4) at different heights. The normally open stationary contact (71) and the normally closed stationary contact (72) are mounted on the partition (3) and are respectively opposite to the normally open moving contact (61) and the normally closed moving contact (62). When the button (2) is not pressed, the normally open moving contact (61) is separated from the normally open stationary contact (71), and the normally closed moving contact (62) abuts against the normally closed stationary contact (72).
4. A rail-mounted push-button switch with dual-channel independent control according to claim 1, characterized in that: It also includes a terminal (10), which is disposed on the housing (1) and connected to the stationary contact (7).
5. A rail-mounted push-button switch with dual-channel independent control according to claim 1, characterized in that: The movable rod (4) is provided with an L-shaped block (9) at its end. The two L-shaped blocks (9) form a rectangle, and the button (2) is provided on the L-shaped block (9).
6. A rail-mounted push-button switch with dual-channel independent control according to claim 1, characterized in that: The button (2) has a pressing part (21) located outside the housing (1).