Light touch switch with fixed handle

Abstract

The utility model relates to a touch switch with a fixed handle. The technical problem to be solved by the utility model is to provide a fixed handle touch switch. According to the technical scheme, the switch comprises a switch base body, a switch end cover, a switch key, a circular metal dome, a first wiring terminal and a second wiring terminal, and the switch key presses the circular metal dome downwards to enable the first wiring terminal and the second wiring terminal to be connected. The switch button comprises a button inner seat and a button pressing main body which is arranged on the switch end cover in a penetrating mode, an inner seat receding groove is formed in the bottom of the button inner seat, and a button extrusion column is arranged in the inner seat receding groove. The touch switch with the fixed handle has the advantages that the difficulty of dust and impurities entering the switch seat body is enhanced by the key inner sinking groove and the key positioning surrounding edge structure, and the protective property is higher; by observing the position state of the in-place indication column, the visual display of whether the key is in place or not can be provided for a user, and the operation reliability and the user experience are improved.

Description

Technical Field

[0001] This utility model relates to a fixed handle tactile switch. Background Technology

[0002] Fixed-handle tactile switches are basic switching devices widely used in electrical control systems, primarily for circuit switching control. A fixed-handle tactile switch includes a switch base, a switch end cover, a switch button, a circular dome switch, a first terminal, and a second terminal. Pressing down the circular dome switch connects the first and second terminals. Existing fixed-handle tactile switches have the following drawbacks in practical use: 1. In traditional fixed-handle tactile switches, there is a gap between the switch button and the switch end cover. This gap allows dust and impurities to easily enter the switch, and long-term accumulation of impurities can affect the normal operation of internal components, leading to unstable contact and reducing the switch's lifespan and reliability; 2. During frequent pressing and resetting, the elasticity of the circular dome switch gradually weakens, resulting in a decreased recovery effect, thus affecting the contact stability and reliability of the switch button. Furthermore, the lack of a visual display mechanism prevents users from observing the dome switch's status externally, increasing the difficulty of maintenance and repair. Improvements and optimizations are proposed to address these issues. Utility Model Content

[0003] To solve the above problems, the technical problem to be solved by this utility model is to provide a fixed handle tactile switch.

[0004] The technical solution adopted by this utility model of fixed handle tactile switch includes: a switch body, a switch end cover, a switch button, a circular dome switch, a first terminal and a second terminal. The switch button presses down on the circular dome switch to connect the first terminal and the second terminal. The switch button includes a button inner seat and a button pressing body passing through the switch end cover. The bottom of the button inner seat is provided with an inner seat relief groove. The inner seat relief groove is provided with a button pressing post that is higher than the bottom surface of the button inner seat and is used to press the top of the middle part of the circular dome switch. The button inner seat is provided with a button inner recess, a button positioning edge and a button guide protrusion in sequence outside the button pressing body. The button positioning edge is provided with a positioning indicator post. The back of the switch end cover is provided with an end cover inner positioning groove corresponding to the button positioning edge. The end cover inner positioning groove is provided with an end cover indicator hole for the button guide protrusion to pass through.

[0005] The switch body has a switch body mounting cavity, and the switch body mounting cavity has a button guide limiting groove corresponding to the button guide protrusion.

[0006] The button positioning perimeter is provided with positioning indicator posts spaced at intervals around an arc, and the number of positioning indicator posts is at least 3.

[0007] The first terminal block includes a first wiring body, the middle of the first wiring body extends to form a first mating portion located below the middle of the circular hot plate, the first mating portion is provided with contact protrusions corresponding to the middle of the circular hot plate, and the two ends of the first wiring body extend to form first external pins passing through the switch base.

[0008] The second terminal block includes a second wiring body. The second wiring body has a second docking part on both sides of the first docking part. The second docking part has a contact block that contacts the original state of the two ends of the circular hot plate. The two ends of the second wiring body extend to form a second external pin that passes through the switch base.

[0009] The first terminal block, the second terminal block, and the switch base are integrally injection molded.

[0010] The switch base mounting cavity is provided with an arc-shaped limiting groove for limiting the installation of the circular hot plate and an internal pressure plate to prevent the circular hot plate from moving up and down when pressed.

[0011] The advantages of this fixed handle tactile switch are as follows: the button positioning rim and button guide protrusion ensure the accuracy of button operation and prevent deviation during pressing; the button recess and button positioning rim structure increase the difficulty for dust and impurities to enter the switch body, providing higher protection; by observing the position status of the position indicator column, it can provide users with an intuitive display of whether the button is in position, improving the reliability of operation and user experience. Attached Figure Description

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0013] Figure 1 This is a schematic diagram of the structure of the fixed handle tactile switch of this utility model;

[0014] Figure 2 This is an exploded view of the fixed handle tactile switch of this utility model;

[0015] Figure 3 This is a schematic diagram of the front structure of the switch button of this utility model;

[0016] Figure 4 This is a schematic diagram of the back structure of the switch button of this utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the switch end cover of this utility model;

[0018] Figure 6 This is a schematic diagram of the structure of the switch base of this utility model;

[0019] Figure 7 This is a schematic diagram of the structure of the first and second terminals of this utility model. Detailed Implementation

[0020] like Figure 1-7 As shown, the fixed handle tactile switch of this utility model includes a switch base 1, a switch end cover 2, a switch button 3, a circular dome switch 4, a first terminal 5, and a second terminal 6. The switch button 3 presses down on the circular dome switch 4 to connect the first terminal 5 and the second terminal 6. The switch button 3 includes a button inner seat 10 and a button pressing body 9 passing through the switch end cover 2. The bottom of the button inner seat 10 is provided with an inner seat relief groove 11. The inner seat relief groove 11 is provided with a button pressing post 12 that is higher than the bottom surface of the button inner seat 10 and is used to press the top of the center of the circular dome switch 4. The button inner seat 10 is provided with a button inner recess 17, a button positioning edge 15, and a button guide protrusion 14 in sequence outside the button pressing body 9. The button positioning edge 15 is provided with a positioning indicator post 16. The back of the switch end cover 2 is provided with an end cover inner positioning groove 19 corresponding to the button positioning edge 15. The end cover inner positioning groove 19 is provided with a positioning post for pressing the button. The end cap indicator hole 20 through which the button guide protrusion 14 passes; the switch body 1 is provided with a switch body mounting cavity 21, and the switch body mounting cavity 21 is provided with a button guide limiting groove 22 corresponding to the button guide protrusion 14. The button positioning edge 15 and the button guide protrusion 14 ensure the accuracy of button operation and avoid deviation during pressing; the structure of the button recess 17 and the button positioning edge 15 increases the difficulty for dust and impurities to enter the switch body, and the protection is higher; by observing the position status of the position indicator post 16, the user can be provided with a visual display of whether the button is in position, improving the reliability of operation and user experience.

[0021] The button positioning perimeter 15 is provided with positioning indicator posts 16 at intervals around an arc. The number of positioning indicator posts 16 is at least 3. Multiple positioning indicator posts 16 provide positioning feedback from multiple angles, improving the visibility of button actions and the accuracy of operation.

[0022] The first terminal block 5 includes a first wiring body 24. The first wiring body 24 extends from the middle to form a first docking portion 25 located below the middle of the circular dome 4. The first docking portion 25 is provided with contact protrusions 26 corresponding to the middle of the circular dome 4. The first wiring body 24 extends from both ends to form first external pins 27 passing through the switch base 1.

[0023] The second terminal block 6 includes a second wiring body 28. The second wiring body 28 has a second docking part 29 on both sides of the first docking part 25. The second docking part 29 has a contact block 30 that contacts the original state of the two ends of the circular dome 4. The two ends of the second wiring body 28 extend to form a second external pin 31 that passes through the switch base 1.

[0024] The first terminal block 5, the second terminal block 6 and the switch base 1 are integrally injection molded. Integral injection molding avoids the problem of weak connection points caused by traditional multi-component assembly and enhances the overall strength.

[0025] The switch base mounting cavity 21 is provided with an arc-shaped limiting groove 33 for limiting the installation of the circular dome switch 4 and an inner pressure plate 35 for preventing the circular dome switch 4 from moving up and down when pressed. The arc-shaped limiting groove 33 fixes the position of the circular dome switch 4 and prevents it from shifting due to vibration or impact. The inner pressure plate 35 reduces the up and down movement of the dome switch, reduces wear, and extends service life.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model are included within the protection scope of the present utility model.

Claims

1. A fixed handle micro switch, comprising a switch base (1), a switch end cover (2), a switch key (3), a circular pot piece (4), a first wiring terminal (5) and a second wiring terminal (6), the switch key (3) presses down the circular pot piece (4) so that the first wiring terminal (5) and the second wiring terminal (6) are connected, characterized in that: The switch button (3) comprises a button inner seat (10) and a button pressing main body (9) penetrating the switch end cover (2), the bottom of the button inner seat (10) is provided with an inner seat displacement slot (11), the inner seat displacement slot (11) is provided with a button extrusion column (12) higher than the bottom surface of the button inner seat (10) and used for extruding the middle top end of the circular pot piece (4), the button inner seat (10) is provided with a button inner sinking groove (17), a button positioning surrounding edge (15) and a button guide protrusion (14) in sequence outside the button pressing main body (9), the button positioning surrounding edge (15) is provided with a to-position indicating column (16), the back of the switch end cover (2) is provided with an end cover inner positioning groove (19) corresponding to the button positioning surrounding edge (15), and the end cover inner positioning groove (19) is provided with an end cover indicating hole (20) for penetrating the button guide protrusion (14). ​ The switch seat body (1) is provided with a switch seat body mounting cavity (21), and the switch seat body mounting cavity (21) is provided with a button guide limiting groove (22) corresponding to the button guide protrusion (14).

2. The fixed handle tactile switch of claim 1, wherein: The to-position indicating columns (16) are arranged at intervals around the arc on the button positioning surrounding edge (15), and the number of the to-position indicating columns (16) is at least three.

3. The fixed handle tactile switch of claim 1, wherein: The first wiring terminal (5) comprises a first wiring main body (24), the middle part of the first wiring main body (24) is extended to form a first butt joint part (25) arranged below the middle part of the circular pot piece (4), the first butt joint part (25) is provided with a contact protrusion (26) corresponding to the middle part of the circular pot piece (4), and both ends of the first wiring main body (24) are extended to form first external connecting pins (27) penetrating the switch seat body (1). The second wiring terminal (6) comprises a second wiring main body (28), the second wiring main body (28) is provided with second butt joint parts (29) on both sides of the first butt joint part (25), the second butt joint parts (29) are provided with contact blocks (30) in contact with both ends of the circular pot piece (4) in the original state, and both ends of the second wiring main body (28) are extended to form second external connecting pins (31) penetrating the switch seat body (1).

4. The fixed handle tactile switch of claim 3, wherein: The first wiring terminal (5), the second wiring terminal (6) and the switch seat body (1) are integrally injection molded.

5. The fixed handle tactile switch of claim 1, wherein: The switch seat body mounting cavity (21) is provided with an arc limiting groove (33) for mounting and limiting the circular pot piece (4) and a seat body inner pressing plate (35) for preventing the circular pot piece (4) from moving up and down when being pressed.

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