Duplex microswitch
By designing a dual micro switch, the synchronous opening and closing of double-point contact is achieved using mounting blocks, movable rods, tension springs and contact reed components, solving the problems of complex structure, high cost and poor contact of existing micro switch products, and achieving higher sensitivity and practicality.
Patent Information
- Application Number
- CN202421954019.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-13
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-08-13
AI Technical Summary
Most of the existing micro switch products are single-connected control, with complex structure and high production costs. Single-point contact is prone to poor contact and insufficient sensitivity, making it difficult to meet customers' usage needs.
A dual micro switch is designed to realize the synchronous opening and closing of double-point contact by setting up mounting blocks, movable rods, tension springs and contact reed components in the housing assembly, reducing the chance of poor contact.
The dual micro switch has a simple structure and a reasonable design, which reduces production costs, improves sensitivity, avoids poor contact, and is highly practical and can meet customer needs.
Smart Images
Figure CN222980351U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of micro switches, in particular to a double - pole micro switch. Background Art
[0002] A micro switch is a contact mechanism with a tiny contact interval and a quick - acting mechanism. It performs switch actions with a specified stroke and a specified force. It is covered with a housing and has a drive rod on the outside. Because the contact spacing of its switch is relatively small, it is named a micro switch, also called a sensitive switch.
[0003] Currently, most of the existing similar products are single - pole controlled, with complex structures and relatively high production costs. In addition, single - point contact often results in poor contact, and its sensitivity needs to be improved to meet the usage requirements of customers. Summary of the Utility Model
[0004] Based on this, it is necessary to provide a double - pole micro switch in view of the problems existing in the prior art.
[0005] A double - pole micro switch includes a housing assembly and a button. An installation block is arranged inside the housing assembly. Moving rods are respectively arranged at both ends of the installation block. A tension spring is connected between the two moving rods at both ends. Contact reed assemblies are respectively connected to the upper and lower sides of each moving rod. One end of the contact reed assembly is connected to the normally - closed switch contact of the moving rod, and the other end extends outside the housing assembly.
[0006] The housing assembly includes an upper shell, a middle shell and a bottom shell. The upper shell, the middle shell and the bottom shell are sequentially connected and fixed by positioning pins. An installation hole is provided on the upper shell. One end of the button passes through the installation hole and extends outwards, and the other end is installed inside the installation block. An installation groove corresponding to the position of the installation hole is provided on the bottom shell. A return spring is installed in the installation groove, and the return spring abuts against the bottom of the installation block.
[0007] In one embodiment, first lower positioning blocks and second lower positioning blocks are respectively arranged on both sides of the installation groove. The first lower positioning block and the second lower positioning block are symmetrically distributed and are integrally formed with the bottom shell.
[0008] In one embodiment, first upper positioning blocks and second upper positioning blocks are respectively arranged on both sides of the installation hole. The first upper positioning block and the second upper positioning block are symmetrically distributed and are integrally formed with the upper shell.
[0009] In one embodiment, first reserved installation positions adapted to the contact reed assemblies are respectively arranged at the top parts of both sides of the middle shell, and second reserved installation positions adapted to the contact reed assemblies are respectively arranged at the bottom parts of both sides of the middle shell.
[0010] In one embodiment, the contact spring assembly includes a first upper contact spring group and a first lower contact spring group. The first upper contact spring group is located between the upper shell and the middle shell, and the first lower contact spring group is located between the middle shell and the bottom shell.
[0011] In one embodiment, screw holes for fixing screws are respectively provided on the bottom shell, the middle shell, and the upper shell.
[0012] The above-mentioned double-pole microswitch has a simple structure and a reasonable design. It not only reduces the production cost, but also greatly improves its sensitivity, avoids the occurrence of poor contact, has strong practicability, and can meet the needs of customers. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a schematic exploded view of a double-pole microswitch of the present invention;
[0014] Figure 2 is a schematic overall structure view of a double-pole microswitch of the present invention;
[0015] Figure 3 is a schematic cross-sectional view of a double-pole microswitch of the present invention.
[0016] Among them, 10 is the housing assembly, 110 is the upper shell, 111 is the mounting hole, 112 is the first upper positioning block, 113 is the second upper positioning block, 120 is the middle shell, 121 is the first reserved mounting position, 122 is the second reserved mounting position, 130 is the bottom shell, 131 is the mounting groove, 132 is the first lower positioning block, 133 is the second lower positioning block, 140 is the screw hole, 150 is the positioning pin, 20 is the button, 30 is the mounting block, 40 is the movable rod, 50 is the contact spring assembly, 510 is the first upper contact spring group, 520 is the first lower contact spring group, 60 is the return spring, and 70 is the tension spring. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] In order to make the above-mentioned objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention will be given with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.
[0018] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. On the contrary, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.
[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used herein in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.
[0020] As Figures 1 to 3 shown, a double microswitch includes a housing assembly 10 and a button 20. An installation block 30 is arranged inside the housing assembly 10. Moving rods 40 are respectively arranged at both ends of the installation block 30. The two moving rods 40 at both ends are connected by a tension spring 70. And contact spring piece assemblies 50 are respectively connected to the upper and lower sides of each moving rod 40. One end of the contact spring piece assembly 50 is connected to the normally closed switch contact of the moving rod 40, and the other end extends out of the housing assembly 10.
[0021] Further, the housing assembly 10 includes an upper shell 110, a middle shell 120 and a bottom shell 130. The upper shell 110, the middle shell 120 and the bottom shell 130 are sequentially connected and fixed by a positioning pin 150. In addition, screw holes 140 for screw fixation are respectively arranged on the bottom shell 130, the middle shell 120 and the upper shell 110, and are fixed by screws during the assembly process to further enhance the structural stability.
[0022] Further, an installation hole 111 is arranged on the upper shell 110. One end of the button 20 extends out through the installation hole 111, and the other end is installed inside the installation block 30. An installation groove 131 corresponding to the position of the installation hole 111 is arranged on the bottom shell 130. A return spring 60 is installed in the installation groove 131. The return spring 60 abuts against the bottom of the installation block 30. In this utility model, the button 20 drives the installation block 30 to move up and down, thereby changing the contact positions of both ends of the contact spring piece assembly 50 with the normally closed / open switch contacts on the moving rod 40, realizing the synchronous opening and closing of the switch, that is, through the collision of two points, the contact head moves to realize the connection or disconnection of the control circuit, reducing the probability of poor contact.
[0023] Further, first reserved mounting positions 121 adapted to the contact reed assembly 50 are respectively provided at the top parts on both sides of the middle housing 120, and second reserved mounting positions 122 adapted to the contact reed assembly 50 are respectively provided at the bottom parts on both sides of the middle housing 120. Among them, the contact reed assembly 50 includes a first upper contact reed group 510 and a first lower contact reed group 520. The first upper contact reed group 510 is located between the upper housing 110 and the middle housing 120, and the first lower contact reed group 520 is located between the middle housing 120 and the bottom housing 130.
[0024] Furthermore, a first lower positioning block 132 and a second lower positioning block 133 are respectively provided on both sides of the mounting groove 131. The first lower positioning block 132 and the second lower positioning block 133 are symmetrically distributed, and the first lower positioning block 132 and the second lower positioning block 133 are integrally formed with the bottom housing 130 respectively; a first upper positioning block 112 and a second upper positioning block 113 are respectively provided on both sides of the mounting hole 111. The first upper positioning block 112 and the second upper positioning block 113 are symmetrically distributed, and the first upper positioning block 112 and the second upper positioning block 113 are integrally formed with the upper housing 110 respectively. In the present utility model, the first upper positioning block 112, the second upper positioning block 113, the first lower positioning block 132 and the second lower positioning block 133 are all provided to assist in the positioning of the contact reed, which not only ensures the structural stability but also reserves the movement range of the contact reed, effectively improving the sensitivity of the double-pole micro switch and prolonging its service life.
[0025] The above-mentioned double-pole micro switch has a simple structure and a reasonable design. It not only reduces the production cost but also greatly improves its sensitivity, avoids the occurrence of poor contact, has strong practicability, and can meet the needs of customers.
[0026] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brief description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.
[0027] The above-described embodiments only represent several implementation manners of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.
Claims
1. A double micro switch, characterized in that: It comprises a housing component and a button, wherein a mounting block is arranged in the housing component, movable rods are arranged at both ends of the mounting block, the movable rods at both ends are connected by a tension spring, and the upper and lower sides of each movable rod are connected to a contact spring assembly respectively, one end of the contact spring assembly is connected to the normally closed switch contact of the movable rod, and the other end extends out of the housing component; The shell assembly includes an upper shell, a middle shell and a bottom shell, the upper shell, the middle shell and the bottom shell are connected and fixed in sequence by positioning pins, and a mounting hole is provided on the upper shell, one end of the button passes through the mounting hole and extends outward, and the other end is installed in the mounting block, and a mounting groove corresponding to the position of the mounting hole is provided on the bottom shell, a return spring is installed in the mounting groove, and the return spring abuts against the bottom of the mounting block.
2. A double micro switch according to claim 1, characterized in that: A first lower positioning block and a second lower positioning block are respectively disposed on both sides of the installation groove, the first lower positioning block and the second lower positioning block are symmetrically distributed and are integrally formed with the bottom shell.
3. A double micro switch according to claim 1, characterized in that: A first upper positioning block and a second upper positioning block are respectively disposed on both sides of the mounting hole. The first upper positioning block and the second upper positioning block are symmetrically distributed and are integrally formed with the upper shell.
4. A double micro switch according to claim 1, characterized in that: The tops of both sides of the middle shell are respectively provided with first reserved installation positions adapted to the contact spring assembly, and the bottoms of both sides of the middle shell are respectively provided with second reserved installation positions adapted to the contact spring assembly.
5. A double micro switch according to claim 4, characterized in that: The contact spring assembly includes a first upper contact spring group and a first lower contact spring group, wherein the first upper contact spring group is located between the upper shell and the middle shell, and the first lower contact spring group is located between the middle shell and the bottom shell.
6. A double micro switch according to claim 1, characterized in that: The bottom shell, the middle shell and the upper shell are respectively provided with screw holes for screw fixing.