CN220189478U - Tact switch - Google Patents

Abstract

The utility model provides a tact switch, which relates to the technical field of switches, has simple structure and short assembly time consumption, improves assembly efficiency, and comprises: the base, reed and interior button in the base, outer button between apron and base, the apron of buckle with the base. The inner bottom of the base is provided with a first electric conductor and a second electric conductor; the reed comprises a reed body with an upward arched center and contact pins on the reed body; the reed body and the contact pin are respectively arranged corresponding to the first electric conductor and the second electric conductor, and the contact pin is kept in contact with the second electric conductor; when being stressed, the reed body is deformed to be in contact with the first electric conductor, and a circuit is conducted between the first electric conductor and the second electric conductor; the inner button is arranged above the reed and is contacted with the center of the reed body; the inner button is used for applying pressure to the reed body; the upper end of the outer button passes through the cover plate and extends out of the cover plate; the outer button is disposed above the inner button and is configured to apply pressure to the inner button.

Description

Tact switch

Technical Field

The utility model relates to the technical field of switches, in particular to a tact switch.

Background

When the touch switch is used, the switch function is pressed to be closed and turned on in the switch operation direction under the condition of meeting the operation force, and when the pressure is removed, the switch is turned off. The tact switch has the advantages of small contact resistance load, accurate operation force error, diversified specifications and the like, and is widely applied to electronic equipment, household appliances and the like, such as: audio-visual products, digital products, remote controllers, communication products, household appliances, security products, toys, computer products, fitness equipment, medical equipment, currency examine pens, laser pen keys, and the like. The existing tact switch is complex in structure, inconvenient to detach during maintenance, and even needs to be tilted by a tool, so that the product structure is very easy to damage, and the improvement of the working efficiency is not facilitated.

Disclosure of Invention

The utility model provides a tact switch which is simple in structure and short in assembly time consumption, and the assembly efficiency of the tact switch is greatly improved. In addition, each component of the tact switch provided by the utility model has a simple structure, is convenient to detach during maintenance, does not need to be tilted by a tool, does not damage the product structure, and is beneficial to improving the working efficiency.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

provided is a tact switch including: the base, set up reed in the base, set up interior button in the base, set up the apron with outer button between the base and with the apron of base buckle. The center and the periphery of the inner bottom of the base are respectively provided with a first electric conductor and a second electric conductor; the reed comprises a reed body with an upward arched center and contact pins which are arranged on the reed body and extend outwards from the periphery of the reed body; the reed body and the contact pin are respectively arranged corresponding to the first electric conductor and the second electric conductor, and the contact pin is kept in contact with the second electric conductor; when being pressed downwards, the reed body deforms downwards to be in contact with the first electric conductor so as to conduct electric circuit between the first electric conductor and the second electric conductor; the inner button is arranged above the reed and is contacted with the center of the reed body; the inner button is used for applying downward pressure to the reed body; the upper end of the outer button penetrates through the cover plate and extends out of the cover plate; the outer button is disposed above the inner button and is configured to apply downward pressure to the inner button.

In some embodiments, the reed body is a circular sheet structure with a center arched upwards, and the contact pins are trapezoid structures; the number of the contact pins is four, and the four contact pins are uniformly distributed on the circumferential edge of the reed body.

In some embodiments, the inner bottom of the base is square, the four contact pins are distributed at four corners of the inner bottom of the base, and the four corners of the inner bottom of the base are configured into a trapezoid structure matched with the shape of the contact pins; and a limit structure is arranged at the position, corresponding to the reed body, of the inner bottom of the base, and the edge of the reed body is abutted to the limit structure.

In some embodiments, the first and second electrical conductors comprise three first and four second contact points, respectively; the three first contact points are distributed around a central array of the inner bottom of the base, and the four second contact points are distributed at four corners of the inner bottom of the base; the four contact pins are respectively kept in contact with the four second contact points; when being pressed downwards, the reed body deforms downwards to be contacted with the three first contact points.

In some embodiments, the first contact points are scalloped, and three of the first contact points are pieced into a circle that matches the circular configuration of the reed body; the second contact point is square in shape matching the shape of the contact foot.

In some embodiments, the contact leg of the reed comprises a connecting portion for connecting the planar contact portion for contacting the second contact point and the reed body, and a planar contact portion.

In some embodiments, the inner button comprises a flat plate part, and a first pressing protrusion and a second pressing protrusion which are respectively arranged on the upper side and the lower side of the flat plate part, wherein the first pressing protrusion is in a stepped round platform structure, and the second pressing protrusion is in a cylindrical structure.

In some embodiments, the outer button includes a cap-shaped cover, an annular peripheral portion, and a cushioning portion connecting a bottom portion of the cap-shaped cover and the annular peripheral portion together; the cap-shaped cover body is provided with a convex column which protrudes downwards from the top of the cap-shaped cover body in the inner cavity of the cap-shaped cover body; the annular periphery is limited and pressed between the cover plate and the base, the bottom of the cap-shaped cover body is positioned above the flat plate part of the inner button, the first pressing protrusion extends into the inner cavity of the cap-shaped cover body, and the convex column corresponds to the first pressing protrusion up and down in position.

In some embodiments, the outer button is a silicone material.

In some embodiments, an elastic buckle is arranged on the cover plate, and a bayonet is arranged on the elastic buckle; a clamping block is arranged on the base corresponding to the elastic buckle; the clamping block passes through the bayonet and is clamped with the elastic buckle; a limiting plate is further arranged on the cover plate, and a clamping groove is formed in the base corresponding to the limiting plate; the limiting plate is clamped with the clamping groove.

The tact switch provided by the utility model comprises the base, the reed, the inner button, the cover plate and the outer button, wherein the reed and the inner button are sequentially arranged in the base, the upper end of the outer button penetrates through the cover plate and extends out of the cover plate, the cover plate is aligned with the base, and then the cover plate is pressed downwards to be buckled with the base, so that the assembly of the tact switch can be completed. In addition, each component of the tact switch provided by the utility model has a simple structure, is convenient to detach during maintenance, does not need to be tilted by a tool, does not damage the product structure, and is beneficial to improving the working efficiency.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a tact switch according to an embodiment of the present utility model;

FIG. 2 is an exploded schematic view of the tact switch provided in FIG. 1;

fig. 3 is a schematic structural diagram of a base of a tact switch according to an embodiment of the present utility model;

FIG. 4 is a cross-sectional view of the tact switch provided in FIG. 1 along the direction A-A;

fig. 5 is a schematic structural diagram of a reed of a tact switch according to an embodiment of the present utility model;

fig. 6 is a schematic structural diagram of a reed and a base of a tact switch according to an embodiment of the present utility model assembled together;

fig. 7 is a schematic structural diagram of an inner button of a tact switch according to an embodiment of the present utility model.

Reference numerals

100-tact switch; 1-a base; 11-a first electrical conductor; 111-a first contact point; 12-a second electrical conductor; 121-a second contact point; 131-arc surface structure; 132-a bump structure; 14-clamping blocks; 15-clamping grooves; 2-reed; 21-a reed body; 22-contact pins; 221-a connection; 222-plane contact; 3-an inner button; 31-a flat plate portion; 32-a first pressing protrusion; 33-a second pressing protrusion; 4-cover plate; 41-elastic buckle; 411-bayonet; 42-limiting plates; 5-an outer button; 51-cap-shaped cover; 511-posts; 52-an annular peripheral portion; 53-buffer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly. In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Embodiments of the present utility model provide a tact switch 100. As shown in fig. 1, 2, 3 and 4, the tact switch 100 includes: base 1, reed 2 that sets up in base 1, set up interior button 3 in base 1, with the apron 4 of base 1 buckle, and set up the outer button 5 between apron 4 and base 1. It should be noted that, as shown in fig. 1 and 2, each of the component base 1, the reed 2, the inner button 3, the cover 4, and the outer button 5 are all independent integral structures, and they may be assembled together to form an integral structure.

Specifically, as shown in fig. 3, the center and the periphery of the inner bottom of the base 1 are provided with a first electric conductor 11 and a second electric conductor 12, respectively. It will be appreciated that first electrical conductor 11 and second electrical conductor 12 are separated from each other and that the electrical circuit therebetween is not conductive.

Specifically, as shown in fig. 2, the reed 2 includes a reed body 21 arched upward at the center, and contact pins 22 protruding outward from the periphery of the reed body 21; the reed body 21 and the contact pin 22 are provided corresponding to the first electric conductor 11 and the second electric conductor 12, respectively, and the contact pin 22 is held in contact with the second electric conductor 12. It will be appreciated that the reed 2 is disposed at the bottom in the base 1, the contact leg 22 of the reed 2 abuts against the bottom in the base 1, and the contact leg 22 of the reed 2 supports the reed body 21 such that the reed body 21 does not contact the bottom in the base 1.

With continued reference to fig. 1, 2, 3 and 4, upon downward pressure, the spring body 21 deforms downward into contact with the first electrical conductor 11 to complete an electrical circuit between the first electrical conductor 11 and the second electrical conductor 12. It will be appreciated that when the spring body 21 deforms downwardly into contact with the first electrical conductor 11 under downward pressure, and when the spring body 21 is released from the downward pressure, the spring 2 returns by its own spring force, i.e. the center of the spring body 21 arches upwardly again, so that the spring body 21 is no longer in contact with the first electrical conductor 11, thereby breaking the electrical circuit between the first electrical conductor 11 and the second electrical conductor 12.

Specifically, as shown in fig. 1, 2 and 4, the inner button 3 is disposed above the reed 2 and in contact with the center of the reed body 21; the inner button 3 is used to apply downward pressure to the reed body 21.

Specifically, as shown in fig. 1, 2 and 4, the upper end of the outer button 5 extends out of the cover 5 through the cover 5; the outer button 5 is disposed above the inner button 3 and is used to apply downward pressure to the inner button 3.

Based on this, as shown in fig. 1, 2, 3 and 4, when it is necessary to conduct an electric circuit, downward pressure is applied to the outer button 5, the outer button 5 presses the inner button 3 downward, the inner button 3 presses the reed 2, and the reed body 21 of the reed 2 deforms downward to be in contact with the first electric conductor 12, thereby conducting an electric circuit between the first electric conductor 11 and the second electric conductor 12. When the downward pressure applied to the outer button 5 is released, the reed 2 is reset by its own elastic force, that is, the center of the reed body 21 is arched upwards again, so that the reed body 21 is no longer in contact with the first electric conductor 12, and the electric circuit between the first electric conductor 11 and the second electric conductor 12 is disconnected.

The tact switch 100 provided by the utility model comprises the base 1, the reed 2, the inner button 3, the cover plate 4 and the outer button 5, wherein the reed 2 and the inner button 3 are sequentially arranged in the base 1, the upper end of the outer button 5 penetrates through the cover plate 5 and extends out of the cover plate 5, the cover plate 5 is aligned with the base 1, and then the cover plate 5 is pressed downwards to be buckled with the base 1, so that the tact switch 100 can be assembled. In addition, each component of the tact switch 100 provided by the utility model has a simple structure, is convenient to detach during maintenance, does not need to be tilted by a tool, does not damage the product structure, and is beneficial to improving the working efficiency.

In some embodiments, as shown in fig. 2, in order to ensure effective elasticity, the number of the reeds 2 of the tact switch 100 is two, and the two reeds 2 are overlapped.

In some embodiments, as shown in fig. 5, the reed body 21 is a circular sheet-like structure with a center upwardly arched, and the contact leg 22 is a trapezoid structure. The number of the contact pins 22 is four, and the four contact pins 22 are uniformly distributed on the circumferential edge of the reed body 21. The reed 2 provided in this embodiment is simple in structure and convenient to process. The structure of the reed 2 of the tact switch 100 provided by the present utility model includes, but is not limited to, the structure of the reed 2 provided in this embodiment.

In some embodiments, as shown in fig. 3, 5 and 6, the bottom inside the base 1 is formed in a square shape as a whole, four contact pins 22 are provided at four corners of the bottom inside the base 1, and the shape of the four corners of the bottom inside the base 1 is configured in a trapezoid structure matching the shape of the contact pins 22. When the reed 2 is arranged in the base 1, the shape of the four corners of the inner bottom of the base 1 is matched with the shape of the contact pins 22, so that the limit function can be achieved, and the reed 2 is prevented from rotating in the base 1.

Further, as shown in fig. 5 and 6, a limit structure is disposed at the position corresponding to the reed body 21 at the bottom of the base 1, and the edge of the reed body 21 abuts against the limit structure. Specifically, an arc surface structure 131 and a protruding structure 132 are arranged on the side wall in the base 1. In this embodiment, the number of the cambered surface structures 131 is two, and the two cambered surface structures 131 are symmetrically arranged; the number of the protruding structures 132 is also two, and the two protruding structures 132 are also symmetrically arranged. The edge of the reed body 21 abuts against the two cambered surface structures 131 and the two protruding structures 132. This can limit the reed body 21 and prevent the reed 2 from rotating and moving radially in the base 1.

In some embodiments, as shown in fig. 3, first electrical conductor 11 and second electrical conductor 12 are integrally formed with base 1. Adopt integrated into one piece for first electric conductor 11 and second electric conductor 12 are fixed more stably in base 1, and direct embedding is in base 1, thereby forms fixedly, also can not take place to drop. Further, as shown in fig. 3, first electrical conductor 11 and second electrical conductor 12 include three first contact points 111 and four second contact points 121, respectively; three first contact points 111 are distributed around a central array of the inner bottom of the base 1, and four second contact points 121 are distributed at four corners of the inner bottom of the base 1; the four contact pins 22 are respectively kept in contact with the four second contact points 121; when subjected to downward pressure, the reed body 21 deforms downward into contact with the three first contact points 111.

In some embodiments, as shown in fig. 3, the first contact points 111 are scalloped, and the three first contact points 111 are pieced into a circle that matches the circular configuration of the reed body 21; the second contact point 121 is square to match the shape of the contact pin 22. In this way, the electrical contact between the reed body 21 and the first contact point 111 and the electrical contact between the contact pin 22 and the second contact point 121 are more reliable, so that the tact switch 100 provided by the utility model is ensured to have good electrical contact.

In some embodiments, as shown in fig. 5, the contact leg 22 of the reed 2 comprises a connecting portion 221 and a planar contact portion 222, the connecting portion 221 being configured to connect the planar contact portion 222 and the reed 2 body, the planar contact portion 222 being configured to contact the second contact point 121. This further results in a reliable electrical contact between the contact foot 22 and the second contact point 121, thereby ensuring that the tact switch 100 provided by the present utility model is in good electrical contact.

In some embodiments, as shown in fig. 7, the inner button 3 includes a flat plate portion 31, and first pressing protrusions 32 and second pressing protrusions 33 disposed on upper and lower sides of the flat plate portion 31, respectively, the first pressing protrusions 32 having a stepped circular truncated cone structure, and the second pressing protrusions 33 having a cylindrical structure. Referring to fig. 1, 2 and 4, the inner button 3 is disposed in the base 1, the flat plate portion 31 of the inner button 3 is limited between the inner walls of the base 1, and the edge of the flat plate portion 31 of the inner button 3 abuts against the inner walls of the base 1 to prevent the inner button 3 from moving in the radial direction, thereby forming a limiting effect of the inner button 3 in the radial direction. The inner push button 3 is provided with the structure provided in the present embodiment, so that the pressing force applied downward to the outer push button 5 acts on the first pressing protrusion 32, not on the flat plate portion 31, and thus the inner push button 3 can be protected from deformation under the action of external force to some extent. Also, the pressing force applied to the first pressing protrusion 32 is transmitted to the second pressing protrusion 33, and the second pressing protrusion 33 acts on the center of the reed body 21, but not on other portions outside the center, so that the reed body 21 can be deformed downward by an external force to some extent.

In some embodiments, as shown in connection with fig. 2 and 4, the outer button 5 includes a cap-shaped cover 51, an annular peripheral portion 52, and a buffer portion 53, the buffer portion 53 connecting the bottom of the cap-shaped cover 51 and the annular peripheral portion 52 together. The buffer part 53 is arranged between the bottom of the cap-shaped cover body 51 and the annular peripheral part 52, so that when the outer button 5 is subjected to downward pressure, the annular peripheral part 52 is prevented from being directly pulled when the cap-shaped cover body 51 moves, and the annular peripheral part 52 can be effectively prevented from loosening.

Further, as shown in fig. 4, the cap-shaped cover 51 has a boss 511 protruding downward from the top thereof in the inner cavity thereof; the first pressing protrusion 32 extends into the inner cavity of the cap-shaped cover 51, and the boss 511 corresponds to the first pressing protrusion 32 in position. This allows the downward pressure to be transmitted by the boss 511 to the first pressing boss 32 when the outer button 5 is subjected to the downward pressure, avoiding the action on the flat plate portion 31 of the inner button 3.

As shown in fig. 2 and 4, the annular peripheral portion 52 is pressed between the cover plate 4 and the base 1, the bottom of the cap-shaped cover body 51 is located above the flat plate portion 31 of the inner button 3, and the flat plate portion 31 of the inner button 3 plays an upward supporting role on the cap-shaped cover body 51. The annular peripheral part 52 is limited and tightly pressed between the cover plate 4 and the base 1, so that the outer button 5 can be effectively prevented from falling off.

In some embodiments, the outer button 5 is a silicone material. The outer button 5 is configured as a silica gel material capable of playing a role of waterproofing and dust prevention.

In some embodiments, as shown in fig. 1 and 2, an elastic buckle 41 is provided on the cover plate 4, and a bayonet 411 is provided on the elastic buckle 41; a clamping block 14 is arranged on the base 1 corresponding to the elastic buckle 41; the clamping block 14 passes through the bayonet 411 to be clamped with the elastic buckle 41; a limiting plate 42 is also arranged on the cover plate 4, and a clamping groove 15 is formed in the base 1 at a position corresponding to the limiting plate 42; the limiting plate 42 is clamped with the clamping groove 15. Therefore, when the cover plate 5 and the base 1 are assembled, the cover plate 5 and the base 1 are only required to be aligned, then the clamp block 14 is pressed downwards to pass through the bayonet 411 and be clamped with the elastic buckle 41, the limiting plate 42 is limited in the clamping groove 15, the assembly between the cover plate 5 and the base 1 can be completed, the operation is simple, the consumed time is short, and the assembly efficiency of the tact switch 100 is greatly improved.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. A tact switch, comprising:

the base is provided with a first electric conductor and a second electric conductor at the center and the periphery of the inner bottom of the base respectively;

the reed comprises a reed body with an upward arched center and contact pins which are arranged on the reed body and extend outwards from the periphery of the reed body; the reed body and the contact pin are respectively arranged corresponding to the first electric conductor and the second electric conductor, and the contact pin is kept in contact with the second electric conductor; when being pressed downwards, the reed body deforms downwards to be in contact with the first electric conductor so as to conduct electric circuit between the first electric conductor and the second electric conductor;

an inner button disposed within the base, the inner button disposed above the reed and in contact with a center of the reed body; the inner button is used for applying downward pressure to the reed body;

a cover plate fastened with the base;

and an outer button disposed between the cover plate and the base, and an upper end of the outer button protrudes out of the cover plate through the cover plate; the outer button is disposed above the inner button and is configured to apply downward pressure to the inner button.

2. The tact switch of claim 1 wherein the reed body is a circular sheet-like structure with a center upwardly arched, and the contact legs are trapezoidal structures; the number of the contact pins is four, and the four contact pins are uniformly distributed on the circumferential edge of the reed body.

3. The tact switch according to claim 2, wherein the inner bottom of the base is formed in a square shape as a whole, the four contact pins are respectively provided at four corners of the inner bottom of the base, and the four corners of the inner bottom of the base are configured in a trapezoid structure matching the shape of the contact pins;

and a limit structure is arranged at the position, corresponding to the reed body, of the inner bottom of the base, and the edge of the reed body is abutted to the limit structure.

4. A tact switch in accordance with claim 3, wherein the first and second electrical conductors comprise three first and four second contact points, respectively; the three first contact points are distributed around a central array of the inner bottom of the base, and the four second contact points are distributed at four corners of the inner bottom of the base;

the four contact pins are respectively kept in contact with the four second contact points; when being pressed downwards, the reed body deforms downwards to be contacted with the three first contact points.

5. The tact switch of claim 4, wherein the first contact points are scalloped, and three of the first contact points mate into a circle that matches the circular configuration of the reed body; the second contact point is square in shape matching the shape of the contact foot.

6. The tact switch of claim 5, wherein the contact leg of the reed comprises a connecting portion for connecting the planar contact portion and the reed body and a planar contact portion for contacting the second contact point.

7. The tact switch according to any one of claims 1 to 6, wherein the inner button comprises a flat plate portion, and first pressing protrusions and second pressing protrusions respectively provided on upper and lower sides of the flat plate portion, the first pressing protrusions being in a stepped circular truncated cone structure, and the second pressing protrusions being in a cylindrical structure.

8. The tact switch of claim 7, wherein the outer button comprises a cap-shaped cover, an annular peripheral portion, and a cushioning portion connecting a bottom portion of the cap-shaped cover and the annular peripheral portion together; the cap-shaped cover body is provided with a convex column which protrudes downwards from the top of the cap-shaped cover body in the inner cavity of the cap-shaped cover body;

the annular periphery is limited and pressed between the cover plate and the base, the bottom of the cap-shaped cover body is positioned above the flat plate part of the inner button, the first pressing protrusion extends into the inner cavity of the cap-shaped cover body, and the convex column corresponds to the first pressing protrusion in position up and down.

9. The tact switch of claim 8, wherein the outer button is a silicone material.

10. The tact switch according to any of claims 1-6, 8 or 9, wherein a resilient catch is provided on the cover plate, the resilient catch being provided with a bayonet; a clamping block is arranged on the base corresponding to the elastic buckle; the clamping block passes through the bayonet and is clamped with the elastic buckle;

a limiting plate is further arranged on the cover plate, and a clamping groove is formed in the base corresponding to the limiting plate; the limiting plate is clamped with the clamping groove.