Wall switch
By using a multi-stage stepped spring hole and chamfered surface design, the problem of heavy feel caused by the high stiffness of existing wall switch springs is solved, achieving a light and reliable operating experience.
Patent Information
- Application Number
- CN202520005947.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-02
AI Technical Summary
The existing wall switch's spring hole structure results in a relatively stiff swing spring, making the button press operation too heavy and difficult to guarantee reliable driving force.
It adopts a multi-stage stepped spring hole design, with the spring holes gradually expanding from the bottom to the opening, and the middle stepped holes providing additional support. Combined with the chamfered surface design, it ensures that the spring provides stable driving force at different stages, reducing the initial stiffness to improve the feel.
It achieves a light and easy-to-use operation while ensuring reliable driving of the swing terminal board, ensuring reliable switch action and improving the user experience.
Smart Images
Figure CN223842812U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a wall switch. Background Technology
[0002] Currently, a common wall switch on the market comprises a switch housing, a button, a swing element, and a switch assembly. The swing element includes an upper swing block for the button to be pressed, and a swing arm located at the bottom of the upper swing block. The upper swing block is configured to swing on the switch housing. The swing arm has a spring hole in which a swing spring is inserted. The switch assembly includes a swing terminal plate. The bottom of the swing terminal plate is a fulcrum, and the top of the swing terminal plate has a spring support wall and a contact mounting portion. A contact is provided on the contact mounting portion. One end of the swing spring is supported at the bottom of the spring hole, and the other end of the swing spring abuts against the spring support wall of the swing terminal plate. On the support wall, pressing the button causes the swing component to swing. The swing component, driven by the swing spring, causes the swing terminal plate to swing around the fulcrum. The swing spring has both axial compression deformation and radial bending deformation. Then, the swing spring rests against the edge of the spring hole to form a limit. That is, the spring force generated by the bending of the swing spring provides the driving force to move the swing terminal plate. However, in the existing spring hole structure, the swing spring only relies on the support point at its root to form a deformation support point. In order to ensure that the swing terminal plate can be reliably driven into place, the spring stiffness is designed to be relatively large. Although this can ensure that the swing spring generates a large driving force, it will make the button pressing operation feel too heavy. Summary of the Invention
[0003] The purpose of this invention is to overcome the defects of the existing technology and provide a wall switch that is easy to operate and reliable in operation.
[0004] To achieve the above objectives, the present invention provides the following technical solution:
[0005] A wall switch includes a switch housing, a button, a swing member, and a switch assembly. The swing member includes an upper swing block for the button to be pressed, and a swing arm disposed at the bottom of the upper swing block. The upper swing block is configured to swing on the switch housing. The swing arm has a spring hole in which a swing spring is inserted. The two side walls of the spring hole corresponding to the swing direction of the swing spring are swing-direction side walls. The swing arm has positioning plates protruding at the end of the spring hole on two sides perpendicular to the swing-direction side walls. The positioning plates have positioning sockets. The switch assembly includes a swing terminal plate. The bottom of the swing terminal plate is a fulcrum. The top of the swing terminal plate has a spring support wall and a contact mounting part. The spring support wall has a spring positioning tongue protruding from it. The contact mounting part has a contact. The spring support wall of the swing terminal plate is inserted into the positioning socket. One end of the moving spring is supported at the bottom of the spring hole, and the other end of the swing spring abuts against the spring support wall of the swing terminal plate and is fitted onto the spring positioning protrusion. The characteristic is that the swing sidewall in the spring hole is multi-step, and the spring hole gradually expands from the bottom to the opening. The spring hole has a bottom positioning round hole, a middle step hole, a transition step hole, and an opening step hole that connects to the opening of the spring hole in sequence from the bottom to the opening end. The swing sidewall provides support for the swing spring after deformation in the hole wall of the middle step hole. The bottom end of the swing spring is positioned and inserted into the bottom positioning round hole. The swing spring has a first deformation state in which the middle part can be supported on the hole wall of the swing sidewall corresponding to the middle step hole after deformation. After the first deformation state, the swing spring continues to deform and finally rests against the opening of the opening step hole to reach a stable state.
[0006] Preferably, the two sides of the spring support wall corresponding to the swing direction of the swing spring are chamfered to form a chamfered surface.
[0007] Preferably, the switch housing includes an upper frame, a bottom cover, and a metal frame plate. The upper frame has a square-shaped central protrusion at its bottom center and a surrounding edge at its bottom edge, forming an insert groove at the bottom of the upper frame. A pair of opposing inner walls of the surrounding edge have protruding locking feet. The four side walls of the central protrusion have protruding positioning ribs, and two opposing side walls have formed snap fasteners. The metal frame plate has a square annular flange protruding axially along the edge of its central hole. The metal frame plate is embedded in the insert groove, and its outer edge is secured by the locking feet. The annular flange of the metal frame plate is fitted onto the outside of the central boss. The inner annular hole wall of the annular flange is supported on the positioning rib. One pair of sides of the annular flange is secured by a snap fastener. The other pair of sides of the annular flange are higher than the central boss to form a positioning edge. The central boss is also provided with a snap-fit plate at the corner position. The snap-fit plate corresponds to the position of the snap fastener. The snap-fit plate is provided with a snap-fit hole. The outer wall of the bottom cover is provided with a snap-fit head. The bottom cover is snapped onto the bottom of the upper frame shell. One pair of sides of the bottom cover are positioned by the snap-fit plate, and the snap-fit head is engaged in the snap-fit hole. The other pair of sides of the bottom cover are positioned by the positioning edge.
[0008] Preferably, a pair of edges of the metal frame plate are formed with latches, the latches having concave surfaces lower than the bottom surface of the metal frame plate, and the latch feet are engaged with the concave surfaces. Another pair of edges of the metal frame plate are folded towards the front of the metal frame edge, and the edge of the mounting groove of the upper frame shell has a positioning groove for inserting the folded edge.
[0009] By adopting the above technical solution, the swing component drives the swing spring. The root of the swing spring is restricted by the bottom positioning hole. The swing spring deforms and twists towards the swing-side wall corresponding to the middle stepped hole. After the swing component swings at a certain angle, the middle part of the swing spring abuts against the swing-side wall corresponding to the middle stepped hole, forming a second support. This ensures that the swing spring has a greater spring driving force, ensuring that the swing terminal plate swings into place. The swing spring of the wall switch has a secondary support effect, which can ensure that the swing spring can generate a greater driving force. Therefore, the stiffness of the swing spring does not need to be too high, and the feel is lighter during the initial operation. Afterwards, the swing spring re-forms a support point in the middle, so that the swing spring has a greater spring driving force, realizing reliable driving of the swing terminal plate to swing into place. Therefore, it can meet the requirements of reliable switch operation and make the operation feel lighter.
[0010] The present invention will now be further described with reference to the accompanying drawings. Attached Figure Description
[0011] Figure 1 This is a structural view of the wall switch of this utility model;
[0012] Figure 2 for Figure 1 A sectional view taken along line AA.
[0013] Figure 3 This is an exploded view of the wall switch of this utility model;
[0014] Figure 4 This is a schematic diagram of the structure of the swing component of this utility model;
[0015] Figure 5 This is a schematic diagram of the structure of the swing terminal plate of this utility model;
[0016] Figure 6 This is a schematic diagram of the spring hole structure of this utility model; Detailed Implementation
[0017] See appendix Figures 1-6This utility model discloses a wall switch, including a switch housing 1, a button 2, a swing member 3, and a switch assembly. The swing member 3 includes an upper swing block 31 for the button 2 to press, and a swing arm 32 disposed at the bottom of the upper swing block 31. The upper swing block 31 is configured to swing on the switch housing 1. The upper swing block 31 is swayably mounted to the switch housing 1 via pivot shafts on both sides. The swing arm 32 is provided with a spring hole 321, in which a swing spring 4 is inserted. For better... The improved structure of this utility model is described below. The two side walls of the spring hole 321 corresponding to the swing direction of the swing spring 4 are called swing-direction side walls 3211. The swing arm 32 has positioning plates 322 protruding from the port of the spring hole 321 on both sides perpendicular to the swing-direction side walls. Positioning plates 322 are provided with positioning sockets 3221. The switch assembly includes a swing terminal plate 5, the bottom of which is a fulcrum. The fulcrum of the swing terminal plate 5 is supported on the plate of a terminal component of the switch assembly (e.g., ...). Figure 2As shown), the top of the swing terminal plate 5 has a spring support wall 51 and a contact mounting part 52. The contact mounting part 52 is provided with a contact 53. A spring positioning tongue 54 protrudes from the spring support wall 51. The spring support wall 51 of the swing terminal plate 5 is inserted into the positioning socket 3221. One end of the swing spring 4 is supported at the bottom of the spring hole 321, and the other end of the swing spring 4 abuts against the spring support wall 51 of the swing terminal plate 5 and is fitted onto the spring positioning tongue 54. The swinging side wall 3211 in the spring hole 321 is multi-step, and the spring hole 321 gradually expands from the bottom to the opening to meet the bending deformation of the swing spring. To meet space requirements, the spring hole 321 has a bottom positioning round hole I, an intermediate stepped hole II, a transition stepped hole III, and an opening stepped hole IV that connects to the opening of the spring hole in sequence from the bottom to the opening end. The swing side wall 3211 provides support for the swing spring 4 after deformation by corresponding to the hole wall of the intermediate stepped hole II. The bottom end of the swing spring 4 is positioned and inserted into the bottom positioning round hole I. The swing spring 4 has a first deformation state after deformation, in which the middle part can be supported on the hole wall of the swing side wall 3211 corresponding to the hole wall of the intermediate stepped hole II. After the first deformation state, the swing spring 4 continues to deform and finally rests against the opening of the opening stepped hole IV to reach a stable state. In the initial stage of operation, the root of the swing spring 4 is constrained by the bottom positioning hole I and undergoes bending deformation. After the swing component 3 swings at a certain angle, when the swing spring 4 bends and deforms, the middle part bulges out towards the wall of the intermediate stepped hole II and is supported on the swing-oriented side wall 3211 on the wall of the intermediate stepped hole II. That is, the spring hole supports the middle part of the swing spring. In other words, after the swing spring undergoes one deformation state, it can support the middle part of the swing spring. This allows the swing spring to provide reliable spring driving force after one deformation state, thereby ensuring that the swing terminal plate swings into place under the spring driving force. In the two-stage support form, the strength of the selected swing spring does not need to be too large. When initially pressed, the fixed support of the swing spring is at the root, so the operation feels lighter. The design of the intermediate stepped hole, on the one hand, provides space for the deformation of the swing spring, and on the other hand, makes the thickness of the swing-oriented side wall gradually change to a flatter shape, which is convenient for the processing and forming of the swing component.
[0018] To further ensure smooth and reliable spring oscillation, the two edges of the spring support wall 51 corresponding to the oscillation direction of the oscillating spring 4 are chamfered, thus forming a chamfered surface 511. This chamfered surface design allows the oscillating spring to avoid obstacles during oscillation, thereby ensuring smooth oscillation.
[0019] In this specific embodiment, the switch housing 1 includes an upper frame 11, a bottom cover 12, and a metal frame plate 13. The upper frame 11 has a square-shaped central protrusion 111 at its bottom center and a perimeter 112 along its bottom edge. A recessed groove 113 is formed at the bottom of the upper frame 11 via the perimeter 112. A pair of opposing inner walls of the perimeter 112 have protruding locking feet 1121. Positioning ribs 1111 protrude from the four side walls of the central protrusion 111, and two opposing side walls have formed snap fasteners 1112. The metal frame plate 13 has a square annular flange 130 protruding axially from the edge of its central hole. The metal frame plate 13 is embedded in the recessed groove 113, and its outer edge is secured by the locking feet 1121. The annular flange 130 of the frame plate 13 is fitted onto the outside of the central boss 111. The inner annular hole wall of the annular flange 130 is supported on the positioning rib 1111. One pair of sides of the annular flange 130 is secured by the buckle 1112. The other pair of sides of the annular flange 130 are higher than the central boss 111 to form a positioning edge. The central boss 111 is also provided with a snap-fit plate 1113 at the corner position. The snap-fit plate 1113 corresponds to the position of the buckle 1112. The snap-fit plate 1113 is provided with a snap-fit hole. The outer side wall of the bottom cover 12 is provided with a snap-fit head 121. The bottom cover 12 is snapped onto the bottom of the upper frame 11. One pair of sides of the bottom cover 12 are positioned by the snap-fit plate 1113, and the snap-fit head 121 is inserted into the snap-fit hole. The other pair of sides of the bottom cover 12 are positioned by the positioning edge. The metal frame plate 13 has a pair of latches 131 formed along one pair of its edges. Each latch 131 has a concave surface 1311 that is lower than the bottom surface of the metal frame plate 13. A latch 1121 engages with the concave surface 1311. The other pair of edges of the metal frame plate 13 are folded towards the front of the metal frame edge, forming folded edges 132. The upper frame shell 13 has a positioning groove 1131 along its mounting groove edge for inserting the folded edges 132. This ensures that the metal frame plate is securely and reliably positioned and fixed.
Claims
1. A wall switch, comprising a switch housing, a button, a swing member, and a switch assembly, wherein the swing member includes an upper swing block for the button to press, and a swing arm disposed at the bottom of the upper swing block, the upper swing block being configured to swing on the switch housing, the swing arm having a spring hole, a swing spring being inserted into the spring hole, the two side walls in the spring hole corresponding to the swing direction of the swing spring being designated as swing-direction side walls, the swing arm having a positioning plate protruding at the end of the spring hole on two sides perpendicular to the swing-direction side walls, the positioning plate having a positioning socket, the switch assembly including a swing terminal plate, the bottom of the swing terminal plate being a fulcrum, the top of the swing terminal plate having a spring support wall and a contact mounting portion, the spring support wall having a spring positioning tongue protruding, the contact mounting portion having a contact, the spring support wall of the swing terminal plate being inserted into the positioning socket, one end of the swing spring being supported at the bottom of the spring hole, the other end of the swing spring abutting against the spring support wall of the swing terminal plate and fitted onto the spring positioning tongue, characterized in that: The swing sidewall in the spring hole is multi-step, and the spring hole gradually expands from the bottom to the opening. The spring hole has a bottom positioning round hole, a middle step hole, a transition step hole, and an opening step hole that connects to the opening of the spring hole in sequence from the bottom to the opening end. The swing sidewall provides support for the swing spring after deformation in the middle step hole. The bottom end of the swing spring is positioned and inserted in the bottom positioning round hole. The swing spring has a first deformation state in which the middle part can be supported on the swing sidewall corresponding to the middle step hole after deformation. After the first deformation state, the swing spring continues to deform and finally reaches a stable state against the opening of the opening step hole.
2. The wall switch according to claim 1, characterized in that: The two sides of the spring support wall corresponding to the swing direction of the swing spring are chamfered to form a chamfered surface.
3. The wall switch according to claim 1 or 2, characterized in that: The switch housing includes an upper frame, a bottom cover, and a metal frame plate. The upper frame has a square-shaped central protrusion at its bottom center and a surrounding edge forming a recessed groove at the bottom. A pair of opposing inner walls of the surrounding edge have protruding locking feet. The central protrusion has positioning ribs on its four side walls and snap fasteners on two opposing side walls. The metal frame plate has a square annular flange protruding axially from its central hole. The metal frame plate is embedded in the recessed groove, and its outer edge is secured by the locking feet. The annular flange of the frame plate is fitted onto the outside of the central boss. The inner annular hole wall of the annular flange is supported on the positioning rib. One pair of sides of the annular flange are fastened by snap fasteners. The other pair of sides of the annular flange are higher than the central boss to form a positioning edge. The central boss is also provided with a snap-fit plate at the corner position. The snap-fit plate corresponds to the position of the snap fastener. The snap-fit plate is provided with a snap-fit hole. The outer wall of the bottom cover is provided with a snap-fit head. The bottom cover is fastened to the bottom of the upper frame shell. One pair of sides of the bottom cover are positioned by the snap-fit plate, and the snap-fit head is inserted into the snap-fit hole. The other pair of sides of the bottom cover are positioned by the positioning edge.
4. The wall switch according to claim 3, characterized in that: The metal frame plate has a pair of edges with latches formed on them. The latches have concave surfaces that are lower than the bottom surface of the metal frame plate. The latches are engaged with the concave surfaces. The other pair of edges on the metal frame plate are folded towards the front of the metal frame edge. The upper frame shell has a positioning groove on the edge of the mounting groove for inserting the folded edge.