CN212277062U

CN212277062U - Light touch switch

Info

Publication number: CN212277062U
Application number: CN202021079003.6U
Authority: CN
Inventors: 蔡林
Original assignee: Dongguan Xinzuan Electronic Technology Co ltd
Current assignee: Dongguan Xinzuan Electronic Technology Co ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-01-01
Anticipated expiration: 2030-06-11

Abstract

The utility model discloses a light touch switch, which comprises an upper cover, a pedestal, a button piece, a support, an elastic piece, a first terminal and a second terminal, the pedestal has an accommodating cavity with an upward opening, the pedestal protrudes upwards to be provided with a cylinder with a hollow structure, the support and the elastic piece are sequentially sleeved on the cylinder from top to bottom and are positioned in the accommodating cavity, the upper cover and the button piece are sequentially stacked on the top surface of the pedestal from top to bottom, the upper cover is detachably connected with the pedestal, the button piece is provided with an upward convex cap, the upper cover is provided with a hollow hole for the convex cap to pass through, the bottom surface of the convex cap is also provided with an annular structure protruding downwards, a gap is arranged between the outer wall of the annular structure and the inner wall of the convex cap, an annular groove is enclosed by the gap, and the groove is clamped; the support is equipped with first terminal, and the base is equipped with the second terminal, and first terminal and second terminal contact are in order to communicate the circuit, and the elastic component has the trend of driving first terminal and second terminal separation forever. Therefore, the utility model discloses a touch switch has waterproof function and the advantage that the function of switching on fast concurrently can.

Description

Light touch switch

Technical Field

The utility model relates to an electronic components field especially relates to a dab switch.

Background

With the development of science and technology and the progress of humanity, the tact switch has advantages of small contact resistance, accurate operation force error, diversified specifications and the like, and is widely applied to electronic equipment, white household appliances and the like.

The existing touch switch has no waterproof structure, so that the existing touch switch has no waterproof function; some touch switches are unreasonable in waterproof structure, and the waterproof structure hinders the conduction rapidity of the internal space terminal, so that the waterproof function and the touch conduction function cannot be achieved simultaneously.

Therefore, a tact switch with both waterproof function and fast turn-on function is urgently needed to overcome the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dabbing switch that waterproof function and fast turn on function can get concurrently.

In order to achieve the above purpose, the tact switch of the present invention comprises an upper cover, a base, a button member, a bracket, an elastic member, a first terminal and a second terminal, the base is provided with an accommodating cavity with an upward opening, the bottom surface of the base is provided with a column body with a hollow structure which is protruded upwards, the bracket and the elastic piece are sequentially sleeved on the column body from top to bottom and are positioned in the accommodating cavity, the upper cover and the button piece are sequentially overlapped on the top surface of the base from top to bottom, the upper cover is detachably connected with the base, the button piece is provided with a convex cap protruding upwards, the upper cover is provided with a hollow hole for the convex cap to pass through, the bottom surface of the convex cap is also provided with an annular structure in a downward convex manner, a gap is formed between the outer wall of the annular structure and the inner wall of the convex cap, the gap is enclosed to form an annular groove, and the groove is clamped on the column body; the support is provided with a first terminal, the base is provided with a second terminal, the first terminal is selectively contacted with the second terminal to communicate a circuit, and the elastic piece constantly has a tendency of driving the first terminal to be separated from the second terminal.

Preferably, the bracket and the elastic piece are respectively provided with a sleeving hole for sleeving the column body.

Preferably, the base is connected with the upper cover in a buckling mode.

Preferably, the two opposite sides of the base are respectively provided with a clamping protrusion, the two opposite sides of the upper cover are respectively connected with a buckling arm downwards, each buckling arm is provided with a hollow structure, and each buckling arm is connected with the corresponding clamping protrusion in a clamping manner.

Preferably, the engaging protrusion is located in the hollow structure and engaged with the upper portion of the engaging arm.

Preferably, a sealing ring extends upwards along the circumferential direction of the hollow hole of the upper cover, and the outer wall of the convex cap is tightly attached to the inner wall of the sealing ring.

Preferably, the middle of the convex cap is provided with a light hole, and the light hole is opposite to the hollow structure.

Preferably, the first terminals are two and embedded in two opposite sides of the bracket respectively, the first terminals include two contact points which are communicated with each other, and the contact points protrude out of the bracket.

Preferably, the number of the second terminals is four and the second terminals are respectively embedded in two opposite sides of the base, the second terminals on the same side are two and spaced apart from each other, and the second terminals on the same side are in contact with the first terminals on the corresponding same side to form an independent loop.

Preferably, the second terminal includes a first contact located in the receiving cavity and a second contact extending outside the base, the first contact and the second contact are arranged in an intersecting manner, and the first contact on the same side is in contact with the contact point on the corresponding same side to form a single loop.

Compared with the prior art, the utility model discloses a dab the switch and stretch a hollow structure's cylinder with the help of the bottom surface of base is protruding upwards, and the bottom of button has the annular recess that corresponds with the cylinder, and the recess block is in order to realize the sealed between base and the button on the cylinder to realize waterproof effect. The button piece and the upper cover are sequentially overlapped on the top surface of the base from top to bottom, the upper cover is detachably connected with the base, and when the upper cover is connected with the base, the sealing effect between the base and the button piece can be deepened, so that a better waterproof effect is achieved; the support and the elastic piece are sequentially sleeved on the column body from top to bottom and are located in the accommodating cavity, when a user presses the button piece, the support is stressed to enable the first terminal and the second terminal to be in contact and a circuit to be connected, and after the force applied by the user disappears, the elastic piece makes elastic recovery movement to enable the first terminal and the second terminal to be separated and the circuit to be disconnected. Therefore, the utility model discloses a touch switch has waterproof function and the advantage that the function of switching on fast concurrently can.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure of the tact switch of the present invention.

Fig. 2 is a schematic view of the three-dimensional structure of the tact switch of the present invention.

Fig. 3 is an explosion diagram of the structure of the tact switch of the present invention.

Fig. 4 is a schematic top view of the tact switch of the present invention.

3 fig. 3 5 3 is 3 a 3 sectional 3 view 3 taken 3 along 3 section 3 line 3 a 3- 3 a 3 of 3 fig. 3 4 3. 3

Fig. 6 is a sectional view taken along section line B-B of fig. 4.

Fig. 7 is a schematic perspective view of another perspective view of the button member of the tact switch of the present invention.

Detailed Description

In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings.

Referring to fig. 1 to 3 and 7, the tact switch 100 of the present invention includes an upper cover 1, a base 2, a button 3, a bracket 4, an elastic member 5, a first terminal 6 and a second terminal 7. The base 2 has an accommodating cavity 21 with an upward opening, a column 22 with a hollow structure 24 is protruded from the bottom surface of the base 2, and the support 4 and the elastic member 5 are sequentially sleeved on the column 22 from top to bottom and located in the accommodating cavity 21. The upper cover 1 and the button piece 3 are sequentially stacked on the top surface of the base 2 from top to bottom, and the upper cover 1 is detachably connected with the base 2. The button member 3 has a convex cap 31 protruding upward, and the upper cover 1 is provided with a hollow hole 11 through which the convex cap 31 passes. With the aid of the convex cap 31, the user is made easy to recognize the button and convenient for the user to press the convex cap 31. The bottom surface of the convex cap 31 is further provided with an annular structure 311 protruding downwards, a gap is formed between the outer wall of the annular structure 311 and the inner wall of the convex cap 31, the gap is enclosed to form an annular groove 32, and the groove 32 is clamped on the column 22. The groove 32 is engaged with the column 22, so that the button 3 is tightly connected with the base 2, and the interior of the receiving cavity 21 is sealed, thereby achieving the waterproof effect. The bracket 4 is provided with a first terminal 6, the base 2 is provided with a second terminal 7, the first terminal 6 is selectively contacted with the second terminal 7 to communicate a circuit, and the elastic member 5 always has a tendency of driving the first terminal 6 to be separated from the second terminal 7. It will be appreciated that when the user presses the button member 3, the button member 3 presses against the support 4, thereby moving the support 4 downwards, thereby bringing the first terminal 6 into contact with the second terminal 7 to complete the circuit; at the same time, the elastic member 5 is also caused to be compressed. When the user releases the force, the elastic member 5 makes an elastic recovery movement to push the bracket 4 upwards, so that the first terminal 6 is separated from the second terminal 7, and the circuit is disconnected. Specifically, in this embodiment, the elastic member 5 is a spring piece, so that the area occupied by the accommodating cavity 21 is smaller, and the volume of the tact switch 100 of the present invention can be reduced, so that the present invention is not limited thereto. Of course, in other embodiments, the elastic member 5 may be a spring, and is not limited thereto. More specifically, the following:

referring to fig. 1 to 3, the base 2 has a box-like structure to facilitate positioning of internal components. Of course, in other embodiments, the base 2 may be a barrel structure, and therefore, the invention is not limited thereto. The elastic member 5 comprises a spherical arching structure 51 and a sheet structure 52 integrally connected with the arching structure 51, wherein the arching structure 51 is positioned in the center of the sheet structure 52, and by means of the arching structure 51, when the bracket 4 is pressed downwards, the arching structure 51 is pressed, and when the bracket 4 loses the application of force, the arching structure 51 is elastically restored to push the bracket 4 to move upwards. Preferably, the bottom of the bracket 4 is provided with a pressing ring 41 protruding downward, and the pressing ring 41 abuts against the top of the elastic member 5, specifically, the pressing ring 41 abuts against the top of the arch structure 51. Support with the help of clamping ring 41 and press hunch-up structure 51 to make the user only need exert very little power and can drive support 4 and move down, and accelerate the speed that support 4 resets, really make the utility model discloses a touch switch 100 reaction is sensitive, reaches the effect of touching.

Understandably, support 4 and elastic component 5 respectively are equipped with and are used for cup jointing the hole of cup jointing on cylinder 22, and support 4 cup joints on cylinder 22 with elastic component 5 to be located and accept chamber 21, with the help of cylinder 22 and cup joint the hole, thereby make support 4 and elastic component 5 be located and accept chamber 21 in a fixed position, thereby when making the user operation, it can not shift to accept the inside part in chamber 21, thereby optimizes the utility model discloses a dab switch 100's sensitivity and reliability. It is preferred that light trap 312 has been seted up to the centre of protruding cap 31, and light trap 312 sets up with hollow structure 24 relatively, works as with the help of this light trap 312 the utility model discloses a light-emitting of light-touch switch 100 can realize the function of being shaded.

Referring to fig. 1 to 3, the upper cover 1 includes an upper cover plate 12 and a buckling arm 13, and two opposite sides of the upper cover plate 12 are connected to the buckling arms 13 respectively. For example, in the present embodiment, the base 2 and the upper cover 1 are fastened, but in other embodiments, the base 2 and the upper cover 1 may be screwed, so the disclosure is not limited thereto. Specifically, two opposite sides of the base 2 are respectively provided with a clamping protrusion 23, the buckling arm 13 is provided with a hollow structure 131, and the buckling arm 13 is connected with the clamping protrusion 23 in a clamping manner. More specifically, the engaging protrusion 23 is located in the hollow structure 131 and is engaged with the engaging arm 13. Preferably, the top surface of the engaging protrusion 23 is an inclined surface 231 inclined downward from inside to outside, and the engaging arm 13 is more smoothly engaged with the engaging protrusion 23 by the inclined surface 231. It can be understood that the latch arms 13 have elasticity, the latch arms 13 are elastically spread apart during the latching process, and the latch arms 13 always have a tendency to press toward the inner side of the base 2. Preferably, in this embodiment, the circumference of upper cover 1 along fretwork hole 11 upwards extends a sealing ring 14, and the inner wall of sealing ring 14 is hugged closely to the outer wall of convex cap 31, with the help of this sealing ring 14, prevents that moisture from getting into in fretwork hole 11, strengthens the utility model discloses a dab switch 100's waterproof ability.

Referring to fig. 1 to 3 and 7, the button 3 includes a plate 33 and a convex cap 31 protruding above the plate 33, the convex cap 31 is located at the center of the plate 33, and the plate 33 is disposed between the base 2 and the upper cover 1. The convex cap 31 protrudes from the upper cover 1. The convex cap 31 and the flat plate 33 are of an integral structure. It will be appreciated that the convex cap 31 is resilient. Thereby facilitating the user to rebound after pressing. For example, the convex cap 31 is made of soft plastic material, so as to achieve better insulating and waterproof effects. In this embodiment, the tact switch 100 of the present invention can realize the waterproof function of Ip 54.

Referring to fig. 3 and 6, two first terminals 6 are embedded in two opposite sides of the bracket 4, respectively, the first terminals 6 include two contact points 61 that are connected with each other, and the contact points 61 protrude out of the bracket 4. The first terminal 6 is of a C-shaped sheet structure. The number of the second terminals 7 is four, the second terminals 7 are respectively embedded in two opposite sides of the base 2, the second terminals 7 on the same side are two and spaced apart from each other, and the second terminals 7 on the same side are in one-to-one contact with the two contact points 61 of the first terminals 6 on the same side to form an independent loop. Specifically, the second terminal 7 includes a first contact 71 located in the receiving cavity 21 and a second contact 72 extending outside the base 2, and the first contact 71 and the second contact 72 are arranged in an intersecting manner, specifically, the first contact 71 and the second contact 72 are arranged perpendicular to each other. The same-side first contact 71 contacts the corresponding same-side contact 61 to form a single loop. Therefore, in this embodiment, the utility model discloses a touch switch 100 has realized two completely independent return circuits, realizes two into singly going out DPST, can prevent this switch output's signal like this and take place mutual interference. The method is suitable for being used in the scenes that a protection circuit is needed in the automobile or other fields.

The operation principle of the tact switch 100 of the present invention is explained with reference to the accompanying drawings: when the user presses the button member 3, the convex cap 31 presses against the support 4, so that the support 4 moves downward, and the contact 61 of the first terminal 6 is contacted with the first contact 71 of the second terminal 7 to complete the circuit; at the same time, the elastic member 5 is also caused to be compressed, thus having elastic potential energy. When the user releases the force, the elastic member 5 moves to elastically return and pushes the bracket 4 upwards, so that the contact 61 of the first terminal 6 is separated from the first contact 71 of the second terminal 7, and the circuit is opened.

Compared with the prior art, the utility model discloses a dab switch 100 with the help of the bottom surface of base 2 stretches a hollow structure 24's cylinder 22 to the epirelief, and button 3's bottom has the annular recess 32 that corresponds with cylinder 22, and recess 32 block is in order to realize the sealed between base 2 and the button 3 on the cylinder 22 to realize waterproof effect. The button piece 3 and the upper cover 1 are sequentially overlapped on the top surface of the base 2 from top to bottom, the upper cover 1 is detachably connected with the base 2, and when the upper cover 1 is connected with the base 2, the sealing effect between the base 2 and the button piece 3 can be deepened, so that a better waterproof effect is achieved; the bracket 4 and the elastic member 5 are sequentially sleeved on the column 22 from top to bottom and are located in the accommodating cavity 21, when a user presses the button member 3, the bracket 4 is stressed to enable the first terminal 6 and the second terminal 7 to be in contact and a circuit is connected, and after the force applied by the user disappears, the elastic member 5 makes elastic recovery movement to enable the first terminal 6 and the second terminal 7 to be separated and the circuit is disconnected. Therefore, the tact switch 100 of the present invention has the advantages of waterproof function and fast on-state function.

The above disclosure is only a preferred embodiment of the present invention, and the scope of the claims of the present invention should not be limited thereby, and all the equivalent changes made in the claims of the present invention are intended to be covered by the present invention.

Claims

1. A light touch switch is characterized by comprising an upper cover, a base, a button piece, a bracket, an elastic piece, a first terminal and a second terminal, the base is provided with an accommodating cavity with an upward opening, the bottom surface of the base is provided with a column body with a hollow structure which is protruded upwards, the bracket and the elastic piece are sequentially sleeved on the column body from top to bottom and are positioned in the accommodating cavity, the upper cover and the button piece are sequentially overlapped on the top surface of the base from top to bottom, the upper cover is detachably connected with the base, the button piece is provided with a convex cap protruding upwards, the upper cover is provided with a hollow hole for the convex cap to pass through, the bottom surface of the convex cap is also provided with an annular structure in a downward convex manner, a gap is formed between the outer wall of the annular structure and the inner wall of the convex cap, the gap is enclosed to form an annular groove, and the groove is clamped on the column body; the support is provided with a first terminal, the base is provided with a second terminal, the first terminal is selectively contacted with the second terminal to communicate a circuit, and the elastic piece constantly has a tendency of driving the first terminal to be separated from the second terminal.

2. The tact switch according to claim 1, wherein the holder and the elastic member are respectively provided with a socket hole for being socket-connected to the column.

3. The tact switch according to claim 1, wherein the base is snap-fitted to the upper cover.

4. The tact switch according to claim 3, wherein two opposite sides of the base are respectively provided with a snap-fit protrusion, two opposite sides of the upper cover are respectively connected with a snap-fit arm downward, the snap-fit arms are provided with a hollow structure, and the snap-fit arms are snap-fit connected with the snap-fit protrusions.

5. The tact switch according to claim 4, wherein the engaging protrusion is located in the hollow structure and engaged with the engaging arm.

6. The tact switch according to claim 1, wherein a sealing ring extends upwards along a circumferential direction of the hollow hole of the upper cover, and an outer wall of the convex cap is tightly attached to an inner wall of the sealing ring.

7. The tact switch according to claim 1, wherein a light-transmitting hole is formed in the middle of the convex cap, and the light-transmitting hole is disposed opposite to the hollow structure.

8. The tact switch according to claim 1, wherein the first terminals are two and embedded in two opposite sides of the bracket respectively, and the first terminals comprise two contact points that are connected with each other and protrude out of the bracket.

9. The tact switch according to claim 8, wherein the number of the second terminals is four and the second terminals are respectively embedded in two opposite sides of the base, the second terminals on the same side are two and spaced apart from each other, and the second terminals on the same side contact the first terminals on the corresponding same side to form a single loop.

10. The tact switch according to claim 9, wherein the second terminal comprises a first contact point located in the receiving cavity and a second contact point extending outside the base, the first contact point and the second contact point are arranged in an intersecting manner, and the first contact point on the same side contacts with the contact point on the corresponding same side to form a single loop.