A buffer mounting structure for a touch switch

Abstract

The application provides a kind of buffer installation structure of touch switch, belongs to switch technical field.It solves the problem that the existing installation structure of touch switch is insufficient to form the buffer effect of touch switch, and it is difficult to effectively protect touch switch when it is impacted.The buffer installation structure of touch switch includes a fixed support and a buffer pad made of elastic material, the touch switch includes a switch body connected to the fixed support and a contact provided on the front end surface of the switch body, the buffer pad includes a block-shaped body that is sleeved on the contact, one end of the body towards the switch body is connected with a deformation flap, the buffer pad is abutted on the front end surface of the switch body through the deformation flap, and the end surface of the body towards the switch body forms a space between the body and the switch body.The application can provide better buffer protection effect for touch switch, avoid damage to touch switch, and prolong the service life of touch switch.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of switch, and relates to a buffer mounting structure of a touch switch. BACKGROUND

[0002] The touch switch is a commonly used switch component in electrical equipment, and has the characteristics of sensitive action, high parameter precision, small size and the like. The touch switch is a device with relatively precise structure. In the use process of the touch switch, the contact of the touch switch will be subjected to impact. At this time, if the touch switch has no shock absorption measures, the touch switch is prone to be damaged, thereby greatly reducing the service life of the touch switch.

[0003] In order to protect the touch switch from being damaged by impact, people have also developed some corresponding solutions. For example, a patent document discloses a side key switch of a mobile communication terminal and a shockproof device thereof (application number: 03101656.1), which achieves the effect of shock absorption by installing a gasket between the function key and the switch. The switch is installed in the mobile communication terminal housing and can be a contact switch. The gasket can be made of an elastic material and is compressed when inserted between the switch and the function key. The contact switch of the structure can achieve a certain shock absorption effect. However, since the gasket is inserted between the switch and the function key, when the function key is subjected to impact, the gasket as a whole will move together with the function key, so that the gasket can be deformed, but the deformation amount is limited, thus resulting in insufficient buffering effect. In the case of a large impact force, the contact switch will still be damaged, thereby reducing the service life of the contact switch.

[0004] At present, in order to improve the shock absorption effect of the touch switch, a spring is usually installed on the touch switch, such as a patent document discloses a power type micro switch (application number: 201310386666.0), which sets a spring between the button and the push rod, so that when the button is subjected to impact, the spring can be deformed to achieve a better shock absorption effect, thereby effectively protecting the switch element. SUMMARY

[0005] The present application aims at the above-mentioned problems existing in the prior art, and provides a buffer mounting structure of a touch switch. The present application solves the problem that the existing mounting structure of the touch switch has insufficient buffering effect on the touch switch and cannot effectively protect the touch switch when the touch switch is subjected to impact.

[0006] The object of the present application can be achieved by the following technical solution: a buffer mounting structure of a touch switch, comprising a fixed support and a buffer pad made of elastic material, the touch switch comprising a switch body connected to the fixed support and a contact provided on the front end surface of the switch body, characterized in that the buffer pad comprises a block-shaped body sleeved on the contact, one end of the body towards the switch body being connected with a deformation flap, the buffer pad abutting against the front end surface of the switch body through the deformation flap, and a space is formed between the end surface of the body towards the switch body and the switch body.

[0007] In the buffer mounting structure, the body of the buffer pad is sleeved on the contact, realizing the installation and fixation of the buffer pad. The body of the buffer pad is block-shaped, so that the buffer pad has a certain thickness instead of a thin buffer layer or buffer sheet, and the impact force is not directly transmitted to the contact when the buffer pad is impacted, thereby improving the protection effect on the touch switch. When the buffer pad is impacted, the deformation flap of the buffer pad abuts against the front end surface of the switch body, limiting the translation of the buffer pad relative to the touch switch, so that the purpose of pressing the contact can only be achieved by the deformation of the buffer pad. In order to enable the block-shaped buffer pad to deform, the buffer mounting structure connects the deformation flap to one end of the body towards the switch body, and the buffer pad abuts against the front end surface of the switch body through the deformation flap, so that a space is formed between the end surface of the body towards the switch body and the switch body. The space has a space-providing effect, so that the buffer pad not only deforms into the space when impacted or pressed, but also the deformation flap extends outward to deform, thereby realizing a large deformation amount, and the deformation flap is retracted to reset when the impact force or pressing force disappears. That is, the buffer mounting structure utilizes the extension and retraction of the deformation flap to enable the block-shaped buffer pad to have a large deformation, thereby achieving the purpose of providing good buffer protection effect for the touch switch, avoiding damage to the touch switch, and prolonging the service life of the touch switch.

[0008] In the above-mentioned buffer mounting structure of the touch switch, the number of the deformation flaps is two and they are symmetrically arranged on both sides of the body, and the fixed support is provided with a limiting surface for the side surface of the deformation flap away from the switch body to abut against. By abutting against the front end surface of the switch body and the limiting surface with the two side surfaces of the deformation flap respectively, the installation effect of the buffer pad can be further improved, so that the buffer pad has good installation stability, and the symmetric arrangement of the deformation flaps on both sides of the body makes the deformation process of the buffer pad have high balance degree, and the buffer pad can accurately press the contact.

[0009] In the above-mentioned buffer installation structure of the touch switch, the limiting surface and the front end surface of the switch body are misaligned with each other and a strip-shaped clamping gap is formed between the two surfaces, the deformed flip-over edge passes through the clamping gap, and the part of the deformed flip-over edge abutting against the limiting surface protrudes out of the front end surface of the switch body. Since the deformed flip-over edge passes through the clamping gap, the deformed flip-over edge can be guided along a set track during the deformation and repositioning of the deformed flip-over edge, and the deformed flip-over edge can return to the initial installation position after each repositioning. Since the front end surface of the switch body and the limiting surface are misaligned with each other and the part of the deformed flip-over edge abutting against the limiting surface protrudes out of the front end surface of the switch body, the deformed flip-over edge is suspended relative to the front end surface of the switch body, which reduces the contact area between the deformed flip-over edge and the front end surface of the switch body and reduces the frictional resistance, and the deformed flip-over edge is not tightly pressed against the limiting surface, so that the deformed flip-over edge is subjected to small frictional resistance during the extension and retraction, and the buffer pad can be deformed fully and effectively to achieve better buffering effect.

[0010] In the above-mentioned buffer installation structure of the touch switch, the deformed flip-over edge is integrally formed with the body, two positioning plates corresponding to the deformed flip-over edge are connected to the inner wall of the fixed support, and the limiting surface is located on the positioning plates. The deformed flip-over edge is integrally formed with the body, which is convenient to manufacture and can improve the service life of the buffer pad. The deformed flip-over edge is abutted against by the positioning plates, which can provide good installation and positioning effect for the buffer pad, and the installation stability of the buffer pad is good. The deformed flip-over edges are symmetrically arranged on both sides of the body, so that the deformation process of the buffer pad is balanced, the buffer pad can accurately press the contact, and the buffer pad can return to the initial installation position after repositioning without deviation.

[0011] In the above-mentioned buffer installation structure of the touch switch, the two positioning plates are parallel to each other and perpendicular to the deformed flip-over edge, the body of the buffer pad is located between the two positioning plates, and gaps are left between the opposite side surfaces of the two positioning plates and the outer wall of the body. This design forms a deformation space between the positioning plates and the body of the buffer pad, so that the buffer pad can deform into the deformation space when subjected to impact, thereby increasing the deformation amount of the buffer pad and improving the buffering effect. The positioning plates are perpendicular to the deformed flip-over edge, so that the positioning plates and the deformed flip-over edge have high adhesion and balanced stress when the buffer pad is in the initial state without being pressed, which can improve the positioning effect of the buffer pad and improve the installation stability of the buffer pad.

[0012] In the above-mentioned buffer installation structure of the touch switch, the fixed support comprises a top plate and two oppositely arranged side plates, the switch body is provided with a conductive plate, the inner walls of the two side plates are respectively provided with a strip-shaped insertion slot arranged along the height direction of the fixed support, and the two sides of the conductive plate close to the side plates are respectively inserted into the strip-shaped insertion slots on the inner walls of the two side plates. The conductive plate is a component of the touch switch for realizing electrical connection, which is prior art, such as the touch switch and manufacturing method (application number: 201610339696.X) in the patent document. The conductive plate of the touch switch is the wire component. The buffer installation structure inserts and fixes the conductive plate by arranging strip-shaped insertion slots on the two side plates, so that the touch switch can be conveniently installed.

[0013] In the above-mentioned buffer installation structure of the touch switch, the two deformation turning edges are turned out towards the directions of the two side plates, the rear side of the top plate is connected with an elastic clamping jaw, the elastic clamping jaw is in the shape of a strip-shaped plate and is arranged along the height direction of the fixed support, the side of the conductive plate away from the switch body abuts against the elastic clamping jaw, and the top surface of the buffer pad abuts against the inner wall of the top plate under the elastic force of the elastic clamping jaw. In order to be conveniently inserted into the strip-shaped insertion slot, the strip-shaped insertion slot and the conductive plate do not form a tight fit. The elastic clamping jaw has three functions: first, the conductive plate can abut against the slot wall of the strip-shaped insertion slot, realizing stable fixation of the conductive plate; second, the elastic force of the elastic clamping jaw abuts the buffer pad against the inner wall of the top plate, thereby improving the installation stability of the buffer pad; third, when the buffer pad is impacted, the elastic clamping jaw can also be slightly deformed, so that the touch switch can be slightly displaced to form a buffer, thereby further improving the buffering effect.

[0014] In the above-mentioned buffer installation structure of the touch switch, the end surface of the body towards the switch body is provided with a deformation displacement slot, and the deformation displacement slot is a through slot penetrating through the top surface and the bottom surface of the buffer pad. This structure makes the deformation of the buffer pad more easy, and thus the buffer pad can produce a larger deformation when impacted, thereby improving the buffering effect.

[0015] In the above-mentioned buffer installation structure of the touch switch, the slot bottom of the deformation displacement slot is provided with a insertion hole for embedding the contact, and the diameter of the insertion hole is greater than the diameter of the contact. This design makes the inner wall of the insertion hole and the contact form a deformation space, and the buffer pad can deform into the deformation space when impacted, thereby increasing the deformation amount of the buffer pad and improving the buffering effect. Since the two side surfaces of the deformation turning edge abut against the front end surface and the limiting surface of the switch body, even if the diameter of the insertion hole is greater than the diameter of the contact, the installation and positioning of the buffer pad can be realized, and the concentricity of the buffer pad and the contact can be ensured as much as possible.

[0016] In the above-mentioned buffer installation structure of the touch switch, the buffer pad is made of rubber material or silica gel material, the fixing support is made of plastic material, the front side of the top plate is connected with a front end plate, the end face of the body opposite to the touch switch is further provided with a protruding pressing protrusion, and the front end plate is provided with a clearance opening opposite to the pressing protrusion. As a preferred, the buffer pad is made of rubber material. The front end plate and the two side plates surround the touch switch, can protect the touch switch, and achieve the dustproof effect. When the touch switch is used, the pressing part passes through the clearance opening and acts on the pressing protrusion to press the buffer pad, so as to open the touch switch. The pressing protrusion can further increase the thickness of the pressed part of the buffer pad, so that the impact force is not directly transmitted to the contact when the buffer pad is impacted, thereby improving the protection effect of the touch switch.

[0017] Compared with the prior art, the buffer installation structure of the touch switch has the following advantages: the buffer installation structure is connected with a deformation turning edge at one end of the body towards the switch body, the buffer pad abuts against the front end face of the switch body through the deformation turning edge, a clearance space is formed between the end face of the body towards the switch body and the switch body, so that the buffer pad not only deforms into the clearance space when impacted or pressed, but also deforms outwardly to extend outwardly, thereby realizing a large deformation amount, achieving the purpose of providing good buffer protection effect for the touch switch, avoiding damage of the touch switch, and prolonging the service life of the touch switch. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a three-dimensional structure diagram of the buffer installation structure Figure 1 .

[0019] Figure 2 is a sectional view of the buffer installation structure Figure 1 .

[0020] Figure 3 is a sectional view of the buffer installation structure Figure 2 .

[0021] Figure 4 is a bottom view of the buffer installation structure.

[0022] Figure 5 is a three-dimensional structure diagram of the buffer installation structure hidden buffer pad.

[0023] Figure 6 is an explosion Figure 1 .

[0024] Figure 7 is an explosion Figure 2 .

[0025] Figure 8is a schematic view of the three-dimensional structure of the buffer mounting structure Figure 2 .

[0026] Figure 9 is a schematic view of the three-dimensional structure of the fixed support.

[0027] Figure 10 is a sectional view of the fixed support.

[0028] In the figure, 1, fixed support; 1a, top plate; 1b, side plate; 1c, elastic clamping jaw; 1d, front end plate; 2, buffer pad; 21, body; 22, deformation flap; 23, pressing protrusion; 3, touch switch; 31, switch body; 311, conductive plate; 32, contact; 4, accommodation space; 5, positioning plate; 51, limiting surface; 6, clamping gap; 7, strip-shaped insertion slot; 8, deformation accommodation slot; 9, insertion hole; 10, accommodation opening. DETAILED DESCRIPTION

[0029] The following is a specific embodiment of the present application and further describes the technical solutions of the present application in conjunction with the accompanying drawings, but the present application is not limited to this embodiment.

[0030] As shown in Figure 1 and Figure 2 , the buffer mounting structure of the touch switch includes a fixed support 1 and a buffer pad 2 made of elastic material, the touch switch 3 includes a switch body 31 connected to the fixed support 1 and a contact 32 arranged on the front end surface of the switch body 31, the buffer pad 2 includes a block-shaped body 21 sleeved on the contact 32, one end of the body 21 towards the switch body 31 is connected with a deformation flap 22, the buffer pad 2 abuts against the front end surface of the switch body 31 through the deformation flap 22, and the end surface of the body 21 towards the switch body 31 and the switch body 31 form an accommodation space 4. The buffer pad 2 is made of rubber material or silicone material, and the fixed support 1 is made of plastic material.

[0031] The buffer mounting structure connects the deformation flap 22 to one end of the body 21 towards the switch body 31, the buffer pad 2 abuts against the front end surface of the switch body 31 through the deformation flap 22, so that the end surface of the body 21 towards the switch body 31 and the switch body 31 form the accommodation space 4, so that the buffer pad 2 not only deforms into the accommodation space 4 when impacted or pressed, but also the deformation flap 22 also extends outward to deform, thereby realizing a larger deformation amount, achieving the purpose of providing better buffer protection effect for the touch switch 3, avoiding damage to the touch switch 3, and prolonging the service life of the touch switch 3

[0032] As shown in Figures 3 to 6As shown, the number of deformation flanges 22 is two and symmetrically arranged on both sides of the body 21, the deformation flanges 22 are integrally formed with the body 21, and the fixed support 1 is provided with a limiting surface 51 for the deformation flanges 22 to abut against the side surface of the switch body 31.

[0033] As shown in Figure 4 and Figure 5 , the limiting surface 51 is staggered with the front end surface of the switch body 31 and a strip-shaped clamping gap 6 is formed therebetween, the deformation flanges 22 pass through the clamping gap 6, and the portion of the deformation flanges 22 abutting against the limiting surface 51 protrudes out of the front end surface of the switch body 31. Since the deformation flanges 22 pass through the clamping gap 6, the deformation flanges 22 can be guided by the clamping gap 6 during the process of protruding for deformation and retracting for resetting, so that the deformation flanges 22 can deform along the set trajectory, and the deformation flanges 22 can reach the initial installation position after each resetting.

[0034] As shown in Figure 3 , Figure 4 and Figure 9 , the inner wall of the fixed support 1 is connected with two positioning plates 5 corresponding to the deformation flanges 22, and the limiting surface 51 is located on the positioning plates 5. The two positioning plates 5 are parallel to each other and perpendicular to the deformation flanges 22, the body 21 of the buffer pad 2 is located between the two positioning plates 5, and gaps are left between the opposite side surfaces of the two positioning plates 5 and the outer wall of the body 21. This design forms a deformation space between the positioning plates 5 and the body 21 of the buffer pad 2, so that the buffer pad 2 can deform into the deformation space when impacted, thereby increasing the deformation amount of the buffer pad 2 and improving the buffering effect.

[0035] As shown in Figure 6 and Figure 7 , an end surface of the body 21 facing the switch body 31 is provided with a deformation accommodation groove 8, which is a through groove penetrating the top surface and the bottom surface of the buffer pad 2. This structure makes it easier for the buffer pad 2 to deform, thereby producing a larger deformation when the buffer pad 2 is impacted, and improving the buffering effect. The groove bottom of the deformation accommodation groove 8 is provided with a plug hole 9 for the contact 32 to be embedded in, and the diameter of the plug hole 9 is greater than the diameter of the contact 32.

[0036] As shown in Figures 8 to 10As shown, the fixed support 1 comprises a top plate 1a and two oppositely arranged side plates 1b, the switch body 31 is provided with a conductive plate 311, the inner walls of the two side plates 1b are respectively provided with a strip-shaped insertion slot 7 arranged along the height direction of the fixed support 1, and the two sides of the conductive plate 311 are respectively inserted into the strip-shaped insertion slots 7 arranged on the inner walls of the two side plates 1b. The conductive plate 311 is a component of the touch switch 3 for realizing electrical connection, which is a prior art, such as a touch switch 3 and a manufacturing method thereof (application number: 201610339696.X), the lead component of the touch switch 3 is the above-mentioned conductive plate 311. The buffer mounting structure inserts and fixes the conductive plate 311 by arranging the strip-shaped insertion slots 7 on the two side plates 1b, so that the touch switch 3 can be conveniently installed. The two deformation turning edges 22 of the buffer pad 2 are respectively turned out towards the directions of the two side plates 1b, the rear side of the top plate 1a is connected with an elastic clamping jaw 1c, the elastic clamping jaw 1c is in the shape of a strip-shaped plate and is arranged along the height direction of the fixed support 1, the side of the conductive plate 311 away from the switch body 31 abuts against the elastic clamping jaw 1c, and under the elastic force of the elastic clamping jaw 1c, the top surface of the buffer pad 2 abuts against the inner wall of the top plate 1a. The front side of the top plate 1a is connected with a front end plate 1d, the end surface of the body 21 away from the touch switch 3 is further provided with a protruding pressing protrusion 23, and the front end plate 1d is provided with a clearance 10 opposite to the pressing protrusion 23. Preferably, the buffer pad 2 is made of rubber material.

[0037] The specific embodiments described herein merely exemplify the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without departing from the spirit of the present application or exceeding the scope defined by the appended claims.

[0038] Although the terms such as 1, fixed support; 1a, top plate; 1b, side plate; 1c, elastic clamping jaw; 1d, front end plate; 2, buffer pad; 21, body; 22, deformation turning edge; 23, pressing protrusion; 3, touch switch; 31, switch body; 311, conductive plate; 32, contact; 4, clearance space; 5, positioning plate; 51, limiting surface; 6, clamping gap; 7, strip-shaped insertion slot; 8, deformation clearance; 9, insertion hole; 10, clearance are used more frequently herein, but the possibility of using other terms is not excluded. The use of these terms is only for the convenience of describing and explaining the essence of the present application; any interpretation of them as any kind of additional limitation is contrary to the spirit of the present application.

Claims

1. A buffer mounting structure for a trigger switch, comprising a fixed bracket (1) and a buffer pad (2) made of an elastic material, wherein the trigger switch (3) comprises a switch body (31) connected to the fixed bracket (1) and a contact (32) disposed on the front end face of the switch body (31), characterized in that, The buffer pad (2) includes a block-shaped body (21) sleeved on the contact (32). A deformation flange (22) is connected to one end of the body (21) facing the switch body (31). The buffer pad (2) abuts against the front end face of the switch body (31) through the deformation flange (22), and a clearance space (4) is formed between the end face of the body (21) facing the switch body (31) and the switch body (31). The fixed bracket (1) includes a top plate. (1a) A conductive plate (311) is provided on the switch body (31). An elastic claw (1c) is connected to the top plate (1a). The elastic claw (1c) is in the shape of a strip plate and is arranged along the height direction of the fixed bracket (1). The side of the conductive plate (311) facing away from the switch body (31) abuts against the elastic claw (1c). Under the action of the elastic force of the elastic claw (1c), the top surface of the buffer pad (2) abuts against the inner wall of the top plate (1a).

2. The buffer mounting structure of the touch switch according to claim 1, characterized in that, The number of the deformable flanges (22) is two and they are symmetrically arranged on both sides of the body (21). The fixed bracket (1) is provided with a limiting surface (51) for the deformable flanges (22) to abut against the side of the switch body (31) facing away from it.

3. The buffer mounting structure of the touch switch according to claim 2, characterized in that, The limiting surface (51) and the front end surface of the switch body (31) are misaligned and a strip-shaped clamping gap (6) is formed between them. The deformation flange (22) passes through the clamping gap (6), and the part of the deformation flange (22) that abuts against the limiting surface (51) extends out of the front end surface of the switch body (31).

4. The buffer mounting structure of the actuated switch according to claim 2 or 3, characterized in that, The deformable flange (22) is integrally formed with the body (21). Two positioning plates (5) are connected to the inner wall of the fixed bracket (1) and are arranged in a one-to-one correspondence with the deformable flange (22). The limiting surface (51) is located on the positioning plate (5).

5. The buffer mounting structure of the touch switch according to claim 4, characterized in that, The two positioning plates (5) are parallel to each other and perpendicular to the deformation flange (22). The body (21) of the buffer pad (2) is located between the two positioning plates (5). There is a gap between the opposite sides of the two positioning plates (5) and the outer wall of the body (21).

6. The buffer mounting structure of the touch switch according to claim 2, characterized in that, The fixed bracket (1) also includes two opposing side plates (1b). The inner walls of the two side plates (1b) are respectively provided with strip-shaped insertion slots (7) arranged along the height direction of the fixed bracket (1). The conductive plate (311) is inserted into the strip-shaped insertion slots (7) arranged on the inner walls of the two side plates (1b) near the two sides of the side plates (1b).

7. The buffer mounting structure of the touch switch according to claim 6, characterized in that, The two deformation flanges (22) are turned out toward the two side plates (1b) respectively.

8. The buffer mounting structure of the trigger switch according to claim 1, 2, or 3, characterized in that, The body (21) has a deformation relief groove (8) on the end face facing the switch body (31). The deformation relief groove (8) is a through groove that penetrates the top and bottom surfaces of the buffer pad (2).

9. The buffer mounting structure of the touch switch according to claim 8, characterized in that, The bottom of the deformation relief groove (8) is provided with a socket (9) for the contact (32) to be inserted, and the diameter of the socket (9) is larger than the diameter of the contact (32).

10. The buffer mounting structure of the touch switch according to claim 6, characterized in that, The buffer pad (2) is made of rubber or silicone material, the fixed bracket (1) is made of plastic material, the front plate (1d) is connected to the front side of the top plate (1a), the end face of the body (21) facing away from the touch switch (3) also has a protruding pressing protrusion (23), and the front plate (1d) has a relief opening (10) that is directly opposite to the pressing protrusion (23).

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