A foolproof and waterproof structure of an integral flange microswitch

Abstract

The utility model discloses a kind of foolproof waterproof structures of integral flange microswitch, including integral flange plate rubber shell, base assembly, press the dear, sealing ring and electronic wire.The integral flange plate rubber shell is fixedly connected with base assembly by buckle position structure, and sealing glue is injected in the cavity formed by both, and constitutes integral sealing structure;The press the dear is movably arranged in the top opening of rubber shell, and realizes dynamic sealing by the sealing ring of sleeve setting;The electronic wire is connected with the terminal in base assembly.The utility model is combined by integral flange structure and buckle glue injection sealing, realizes the efficient assembly of switch and IP67 level high protection grade, and the foolproof bevel design of flange plate front surface effectively prevents reverse installation, improves the reliability and ease of use of product.

Description

Technical Field

[0001] This utility model relates to the field of switch technology, and in particular to a foolproof and waterproof structure for an integrated flange micro switch. Background Technology

[0002] A micro switch, also known as a sensitive switch, is a contact mechanism with tiny contact intervals and a quick-acting mechanism. It is a contact mechanism that can achieve switching action using a specified stroke and force. Its working principle is as follows: external mechanical force is transmitted through a transmission element, such as a push button, handle, or roller, to an actuating spring. When the actuating spring moves to a critical point, a momentary action occurs, causing the moving contact at the end of the actuating spring to quickly connect or disconnect with the fixed contact. There are many types of micro switches available. Based on the different pressing accessories added, switches can be classified into push-button type, spring roller type, lever roller type, short-arm type, long-arm type, and other forms.

[0003] Microswitches, as sensitive contact mechanisms, are widely used in industrial control, home appliances, and automotive electronics. With the expansion of application scenarios, especially in harsh environments such as high humidity and dust, higher demands are placed on the sealing reliability and ease of installation of microswitches. Currently, most microswitches on the market adopt a split housing structure, assembled by screws or simple snap-fits. This type of structure has disadvantages such as numerous seams and reliance on multiple sealing components for sealing performance. It is prone to sealing failure under long-term vibration or temperature changes, making it difficult to consistently achieve high protection levels (such as IP67). Furthermore, traditional symmetrical housing designs are prone to orientation confusion when installing onto equipment panels, leading to installation errors, affecting work efficiency, and even equipment functionality. Therefore, there is an urgent need for an integrated microswitch with a compact structure, reliable sealing, and anti-misinstallation function. Utility Model Content

[0004] The purpose of this invention is to provide a foolproof and waterproof structure for an integrated flange micro switch that offers better sealing performance and is easy to assemble.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A foolproof and waterproof structure for an integrated flange micro switch includes: an integrated flange housing, a base assembly, a push button, a sealing ring, and an electronic wire; the integrated flange housing and the base assembly are mechanically fixedly connected by a snap-fit ​​structure, and the cavity formed after their connection is filled with sealant to form an overall sealed structure; the push button is movably disposed at the top opening of the integrated flange housing; the sealing ring is fitted onto the push button and seals the gap between the push button and the top opening of the integrated flange housing; the electronic wire is electrically connected to a terminal inside the base assembly.

[0006] Furthermore, the front of the integrated flange housing is provided with a foolproof bevel to prevent the switch from being installed in reverse.

[0007] Furthermore, the integrated flange housing is provided with at least two mounting holes, which are distributed along the longer side of the micro switch body.

[0008] Furthermore, the base assembly includes a base and a terminal assembly fixed to the base, the terminal assembly including a common terminal, a first terminal and a second terminal.

[0009] Furthermore, the base assembly also includes a movable piece assembly and an elastic element. The movable piece assembly includes a support and a movable piece, and the support and the movable piece are connected by the elastic element.

[0010] Furthermore, the common terminal passes through the base and has an upper stationary contact on the portion above the base. Furthermore, the first terminal passes through the base and has a lower stationary contact on the portion above the base. Furthermore, the second terminal passes through the base and has two support rods on the portion above the base. Furthermore, one end of the moving piece is located between the upper and lower stationary contacts, and the other end abuts against the support rod, and the upper and lower surfaces of the end of the moving piece located between the upper and lower stationary contacts are respectively provided with moving contacts.

[0011] Furthermore, the moving piece has a spring connection hole at one end near the moving contact, one end of the bracket abuts against the common terminal, and the other end is located between the support rods. The bracket also has a spring connection hole at one end of the support rod.

[0012] Furthermore, the portion of the first terminal located on the base is provided with an arc-shaped groove for mounting a bracket, and the bracket is also provided with a corresponding "U"-shaped groove so that the bracket can be installed and fixed on the arc-shaped groove of the first terminal.

[0013] Furthermore, the end of the moving piece that contacts the support rod is designed in an "L" shape, and a "V" shaped groove is opened at the connection between the support rod and the moving piece, so that the end of the moving piece can firmly abut against the support rod without displacement.

[0014] Preferably, the elastic element is a spring.

[0015] The integrated flange housing and base assembly of this utility model are fixed by snap-fit ​​and sealed with glue; this enables the switch to meet the IP67 protection level; at the same time, the front of the flange housing is provided with a foolproof bevel to ensure that the switch cannot be installed in reverse; the overall structure of the switch is reasonable, easy to use, and has a lower manufacturing cost. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the switch of this utility model; Figure 2 This is an exploded view of the switch of this utility model; Figure 3 This is a cross-sectional view of the switch of this utility model; Figure 4 This is a schematic diagram of the base assembly structure of the switch of this utility model; Figure 5 This is a cross-sectional view of the flange housing of the switch of this utility model; The attached figures are labeled as follows: One-piece flange housing 1, top opening 11, mounting hole 12, foolproof bevel 13, push button 3, sealing ring 4, electronic wire 5, base assembly 2, base 21, common terminal 22, upper stationary contact 221, first terminal 23, lower stationary contact 231, arc groove 232, second terminal 24, support rod 241, V-groove 242, elastic element 25, bracket 26, U-groove 261, spring connection hole 272, moving piece 27, moving contact 271. Detailed Implementation

[0017] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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.

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] See Figure 1-5 As shown, this utility model discloses a foolproof and waterproof structure for an integrated flange micro switch, including: an integrated flange housing 1, a base assembly 2, a push button 3, a sealing ring 4, and an electronic wire 5; wherein, the integrated flange housing 1 and the base assembly 2 are fixedly connected by a snap-fit ​​structure, and the cavity formed after their connection is filled with sealant to form an overall sealed structure; for easy installation, a foolproof bevel 13 is provided on the front of the integrated flange housing 1 to prevent the switch from being installed in reverse, and at least two mounting holes 12 are provided on the housing, which are distributed along the longer side of the micro switch body. Of course, the number of mounting holes 12 can be opened according to actual needs; in this utility model example, there are two. The push button 3 is movably disposed at the top opening 11 of the integrated flange housing 1; the sealing ring 4 is sleeved on the push button 3 and seals the gap between the push button 3 and the top opening of the integrated flange housing 1; the electronic wire 5 is electrically connected to the terminals inside the base assembly 2.

[0021] The base assembly 2 includes a base 21 and a terminal assembly fixed to the base 21. The terminal assembly includes a common terminal 22, a first terminal 23, and a second terminal 24. The base assembly 2 also includes a movable piece assembly and an elastic element 25. The movable piece assembly includes a bracket 26 and a movable piece 27, which are connected by the elastic element 25, preferably a spring. Specifically, The common terminal 22 passes through the base 21 and has an upper stationary contact 221 on the portion above the base 21. The first terminal 23 passes through the base 21 and has a lower stationary contact 231 on the part above the base 21. The second terminal 24 passes through the base 21 and has two support rods 241 on the part above the base 21. One end of the moving piece 27 is located between the upper and lower stationary contacts, and the other end abuts against the support rod 241. The upper and lower surfaces of the end of the moving piece 27 located between the upper and lower stationary contacts are respectively provided with moving contacts 271.

[0022] A spring connection hole 272 is provided at one end of the movable piece 27 near the movable contact 271; One end of the bracket 26 rests against the common terminal 22, and the other end is located between the two support rods 241. The end of the bracket 26 located on the support rod 241 is also provided with a spring connection hole 272.

[0023] Specifically, the portion of the first terminal 23 located on the base is provided with an arc-shaped groove 232 for mounting a bracket, and the bracket is also provided with a corresponding "U"-shaped groove 261 so that the bracket can be installed and fixed on the arc-shaped groove of the first terminal; the end of the moving piece that contacts the support rod is designed as "L"-shaped, and a "V"-shaped groove 242 is provided at the connection between the support rod and the moving piece so that the end of the moving piece can be firmly abutted against the support rod without displacement; the bottom of the button 3 contacts one end of the elastic element connected to the bracket 26; by pressing the button 3, the elastic element can be pulled, thereby causing the moving contact on the moving piece to move up and down, thereby turning the circuit on or off.

[0024] In summary, the micro switch of this invention has the following beneficial effects: High-level sealing protection: By designing the mounting flange and switch housing as a single molded flange shell, most seams of traditional split housings are eliminated structurally. Combined with a dual sealing process of "lock-in" and "cavity potting," comprehensive protection of the internal circuitry is achieved, ensuring the switch consistently achieves an IP67 protection rating and significantly improving its reliability in harsh environments. Sturdy structure and efficient production: The one-piece structure simplifies the number of parts, and the snap-fit ​​connection replaces the cumbersome screw fastening, which not only makes the structure more compact and has better vibration resistance, but also greatly improves assembly efficiency and reduces production costs. Anti-misinstallation design: The asymmetrical anti-foolproof bevel designed on the front of the flange housing provides clear installation guidance, fundamentally eliminating the possibility of reverse installation of the switch on the equipment panel from a physical structure perspective, thus improving the accuracy and efficiency of installation. Reliable internal operation: Optimized internal moving piece and terminal structure design, combined with elastic elements, ensures the sensitivity and consistency of switch operation. The special contact structure between the moving piece and the support rod (such as the L-shaped end and V-groove fit) guarantees the stability of the fulcrum, reduces wear during operation, and thus extends the switch's service life.

[0025] The integrated flange housing and base assembly of this utility model are fixed by snap-fit ​​and sealed with glue; this enables the switch to meet the IP67 protection level; at the same time, the front of the flange housing is provided with a foolproof bevel to ensure that the switch cannot be installed in reverse; the overall structure of the switch is reasonable, easy to use, and has a lower manufacturing cost.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A foolproof and waterproof structure for an integrated flange micro switch, characterized in that, include: Integrated flange housing, base assembly, buttons, sealing rings, and electronic wiring; The integrated flange housing and the base assembly are mechanically fixed together by a snap-fit ​​structure, and the cavity formed after their connection is filled with sealant to form an overall sealed structure; the push button is movably disposed at the top opening of the integrated flange housing; the sealing ring is fitted onto the push button and seals the gap between the push button and the top opening of the integrated flange housing; the electronic wire is electrically connected to the terminals inside the base assembly.

2. The foolproof and waterproof structure of an integrated flange micro switch according to claim 1, characterized in that, The front of the integrated flange housing is provided with a foolproof bevel to prevent the switch from being installed in reverse.

3. The foolproof and waterproof structure of an integrated flange micro switch according to claim 1 or 2, characterized in that, The integrated flange housing has at least two mounting holes, which are distributed along the longer side of the micro switch body.

4. The foolproof and waterproof structure of an integrated flange micro switch according to claim 1, characterized in that, The base assembly includes a base and a terminal assembly fixed to the base, the terminal assembly including a common terminal, a first terminal and a second terminal.

5. The foolproof and waterproof structure of an integrated flange micro switch according to claim 4, characterized in that, The base assembly further includes a movable piece assembly and an elastic element. The movable piece assembly includes a support and a movable piece, and the support and the movable piece are connected by the elastic element.

6. The foolproof and waterproof structure of an integrated flange micro switch according to claim 5, characterized in that, The common terminal passes through the base and has an upper stationary contact on the portion above the base. The first terminal passes through the base and has a lower stationary contact on the portion above the base. The second terminal passes through the base and has two support rods on the portion above the base.

7. The foolproof and waterproof structure of an integrated flange micro switch according to claim 6, characterized in that, One end of the moving piece is located between the upper and lower stationary contacts, and the other end abuts against the support rod. The upper and lower surfaces of the end of the moving piece located between the upper and lower stationary contacts are respectively provided with moving contacts.

8. The foolproof and waterproof structure of an integrated flange micro switch according to claim 7, characterized in that, The moving piece has a spring connection hole at one end near the moving contact. One end of the bracket abuts against the common terminal, and the other end is located between the support rods. The bracket also has a spring connection hole at one end of the support rod.

9. The foolproof and waterproof structure of an integrated flange micro switch according to claim 8, characterized in that, The portion of the first terminal located on the base also has an arc-shaped groove for mounting a bracket, and the bracket also has a corresponding "U"-shaped groove so that the bracket can be mounted and fixed on the arc-shaped groove of the first terminal.

10. The foolproof and waterproof structure of an integrated flange micro switch according to claim 9, characterized in that, The end of the moving piece that contacts the support rod is designed in an "L" shape, and a "V" shaped groove is opened at the connection between the support rod and the moving piece so that the end of the moving piece can firmly abut against the support rod.

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