CN201667302U - Light touch switch with lamp - Google Patents

Abstract

The utility model discloses a can take lamp formula to dabber switch, including an insulator, this insulator has a holding chamber, from last button down having set gradually in the holding intracavity, contact piece and terminal group, further including a light emitting component of adorning on the insulator admittedly, this light emitting component includes an luminous body and a set of metal guide pin of being connected with the luminous body, this luminous body is accomodate in the button, this metal guide pin forms a horizontal shoulder and a vertical pin portion through bending, be provided with the open-ended fixed slot that makes progress on the insulator, the opening lateral margin of this fixed slot lives the shoulder of metal guide pin through the hot melt cladding, the pin portion of metal guide pin is outside extending the insulator downwards. Therefore, the fixing groove is formed in the insulating seat, the metal guide pin of the light-emitting element is positioned in the fixing groove, and then the light-emitting element and the insulating seat are fixedly connected together in a hot melting mode.

Description

Illuminated tact switch

technical field

The utility model relates to the technology in the field of key switches, in particular to an illuminated tact switch which obtains pulse signals by pressing, and is suitable for operation keys of various household appliances, automobiles and audio systems.

Background technique

Tact switch, also called micro switch, is an electronic switch. When in use, lightly press the switch button to turn on the switch. When you let go of your hand, the switch is turned off. Move to achieve on-off. Due to its small size and light weight, micro switches are widely used in household appliances such as color TV buttons, DVD player buttons, computer mice and so on. It can also be used to control low-power household appliances such as lights and exhaust fans. The electronic switch is automatically disconnected after a mains power outage, and will not automatically switch on when the power comes on again (the control button must be pressed to switch on), which can avoid power consumption or accidents caused by long-term power on of electrical appliances.

With household appliances, automobiles and other products becoming more and more humanized and multi-functional, higher requirements have been put forward for the function and appearance of the keys of such products. As the light touch switch with light in the prior art, the known In the switch device disclosed in patent document 200680004831.X, the light-emitting element is erected inside the pressing member of the switch body through other mounting parts, and two terminals are drawn from the position where the light-emitting element is fixed, and from the mounting part of the light-emitting element. The light-emitting element mounting feet of the base are engaged. The installation of this structure is quite complicated, and the pin cooperation between the light-emitting element and its mounting member lacks stability, and there are many procedures in the assembly and production process, resulting in an increase in product cost.

Utility model content

In view of this, the utility model aims at the deficiencies of the prior art, and its main purpose is to provide a light touch switch with light, which has the characteristics of simple structure, convenient installation, stability and reliability, and low cost.

Another purpose of the utility model is to provide a light touch switch with light, which has waterproof and dustproof functions, and prolongs the service life of the contact piece.

Another object of the present invention is to provide a light-touch switch with light, which has multiple connection modes with the circuit board and can be equipped with various key covers to operate the keys, so it has flexibility in use.

In order to achieve the above object, the utility model adopts the following technical solutions:

A light-touch switch with light, including an insulating seat, the insulating seat has an opening upward accommodating cavity, in the accommodating cavity, buttons, contact pieces and terminal groups are sequentially arranged from top to bottom, and the lower end of the button is The part is freely movable in the accommodating cavity, and further includes a light-emitting element fixed on the insulating seat, the light-emitting element includes a light-emitting body and a group of metal guide pins connected with the light-emitting body, the light-emitting body is accommodated in the key, the light-emitting element The metal guide pin is bent to form a horizontal shoulder and a vertical pin part. An upwardly opening fixing groove is arranged on the insulator. The pin portion of the guide pin extends downwards out of the insulating seat.

As a preferred solution, it further includes a rubber body, the rubber body is sandwiched between the contact piece and the button, and a limiting convex ring and a waterproof convex ring are arranged at the bottom of the rubber body, and the limiting convex ring is pressed on the edge of the contact piece Above, the waterproof protruding ring is located on the periphery of the limiting protruding ring, and a waterproof groove is provided at the bottom of the accommodating cavity for the waterproof protruding ring, and an annular protruding ring for enhancing the waterproof effect is further provided in the waterproof groove. The waterproof protruding ring is tightly Embedded in the waterproof groove.

As a preferred solution, it further includes a key cover that is pivotally mounted on the top of the key and can be turned over freely to provide the pressing force of the key. One side of the key cover is provided with a hook block, which corresponds to the hook block provided on the insulating seat to cooperate with the hook block. The hook groove, the hook block and the hook groove are interlocked and pivotally mounted.

As a preferred solution, it further includes a key cover inserted above the key to provide the pressing force of the key. The key cover has a cavity with an opening facing downward, and a guide groove is arranged in the cavity, corresponding to the key that is arranged on the key. The guide posts matched with the guide grooves, the upper part of the button is inserted into the cavity of the key cover, and the guide posts are tightly inserted in the guide grooves.

As a preferred solution, it further includes a key cover that slides up and down and provides the pressing force of the key. The key cover includes an upper cover, a gasket and a lower cover. The upper cover and the lower cover are engaged with each other. The gasket is sandwiched between the upper cover and the lower cover. The lower cover is provided with a guide hole corresponding to the hook-shaped guide block provided on the insulating seat. The guide hole and the guide block are interlocked. The upper cover Slide up and down along the guide block, the spacer is against the button.

As a preferred solution, it further includes a key cover that can act on the upper end surface of the key to provide the pressing force of the key. The bottom of the key cover is provided with a guide post, and a guide hole is provided corresponding to the upper end surface of the key. The guide post is tightly inserted into the inside the guide hole.

As a preferred solution, the insulating base is vertically placed on the circuit board, the ends of the terminal group and the ends of the metal guide pins pass through the circuit board and are thermally fused with the lower surface of the circuit board, or the ends of the terminal group and the ends of the metal guide pins are thermally melted and solidified on the upper surface of the circuit board.

As a preferred solution, it further includes a bracket, one end of the bracket is buckled with the insulating base, and the insulating base is horizontally placed on the circuit board, and the end of the terminal metal guide pin of the terminal group and the other end of the bracket pass through the circuit board and thermally welded to the lower surface of the circuit board.

As a preferred solution, the insulating base includes an upper cover and a base, and the upper cover and the base are inserted through positioning grooves and positioning posts that cooperate with each other and are bonded together by heat fusion.

As a preferred solution, the base is provided with a dust-proof groove for enhancing the dust-proof effect of the contact piece under the contact piece.

Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be known from the above technical solutions:

1. By setting a fixing groove on the insulating seat, the metal guide pin of the light-emitting element is positioned in the fixing groove, and then the light-emitting element and the insulating seat are consolidated together by hot melting. Compared with the prior art, the structure is more Simple, more convenient assembly, more stable and reliable connection, and help to reduce production costs.

2. The base is equipped with a waterproof groove and a dustproof groove, and the waterproof convex ring of the rubber body is closely matched with the waterproof groove, which has a good waterproof and dustproof effect and greatly prolongs the service life of the contact piece.

3. Through hot-melt connection of the terminal end and the end of the metal guide pin through the circuit board or directly on the circuit board, a variety of connection methods are realized, and the button cover can be matched with the button or insulated according to the shape of the button cover The seat is connected and acts on the button, which enhances the flexibility of the switch.

In order to more clearly illustrate the structural features and effects of the utility model, the utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments:

Description of drawings

Fig. 1 is the assembly perspective view of the embodiment of the utility model;

Fig. 2 is the exploded view of the embodiment of the utility model;

Fig. 3 is the sectional view of the embodiment of the utility model;

Fig. 4 is a state diagram in which the key is pressed in Fig. 3;

Fig. 5 is a state diagram of the first mode in which the switch is connected to the circuit board;

Fig. 6 is a state diagram of the second mode in which the switch is connected to the circuit board;

Fig. 7 is a state diagram of a third mode in which the switch is connected to the circuit board;

Fig. 8 is a state diagram of the first embodiment in which the key cover is installed on the key;

Fig. 9 is a state diagram of the second embodiment in which the key cover is installed on the key;

Fig. 10 is a state diagram of a third embodiment in which the key cover is installed on the key;

Fig. 11 is a state diagram of the fourth embodiment in which the key cover is installed on the key;

Figure 12 is an enlarged view of another angle of the base;

Fig. 13 is an enlarged view of another angle of the rubber body.

Explanation of the accompanying drawings:

10. Insulation seat 11. Accommodating cavity

12. Upper cover 121. Positioning slot

122. Fixed slot 123. Hook slot

13. Base 131. Positioning column

132. Fixing hole 133. Guide block

14. Waterproof groove 141. Protruding ring

15. Dust-proof groove 20. Terminal group

21. The first terminal 211. The first contact part

212. The first welding foot part 22. The second terminal

221. The second contact part 222. The third contact part

223. The second welding foot part 30. Contact piece

40. Rubber body 41. Limiting convex ring

42. Waterproof convex ring 43. Bump

44. Hollow cylinder 50. Button

51. Protruding column 52. Cavity

53. Guide post 54. Guide hole

60. Light-emitting element 61. Luminous body

62. Metal guide foot 621. Shoulder

622. Pin part 70. Bracket

81. First button cover 811. Hook block

82. Second button cover 821. Cavity

822. Guide groove 83. The third button cover

831. Upper cover body 832. Gasket

833. Lower cover body 834. Guide hole

84. The fourth button cover 841. Guide post

100. Circuit board

Detailed ways:

Please refer to Figures 1 to 13, which show the specific structure of a preferred embodiment of the present invention, including an insulating seat 10, a terminal group 20, a contact piece 30, a rubber body 40, a button 50, and a light emitting element 60 .

Wherein, the insulating base 10 has an accommodating chamber 11 with an opening upward. The insulating base 10 includes an upper cover 12 and a base 13. The upper cover 12 is provided with a positioning groove 121 on the side thereof, corresponding to the base 13 extending a positioning groove. 121 is compatible with the positioning column 131, the positioning column 131 and the positioning groove 121 are inserted in cooperation with each other, the upper end surface of the positioning column 131 protrudes from the upper end surface of the positioning groove 121, and the upper end surface of the positioning column 131 is thermally fused, so that the upper end surface The cover 12 and the base 13 are fixed together. And, an annular waterproof groove 14 is disposed on the bottom of the accommodating cavity 11 and on the base 13 . To enhance the waterproof effect, an annular protruding ring 141 is further disposed in the waterproof groove 14 . The center of the bottom of the accommodating chamber 11 is the working area of the contact piece 30 , and a dustproof groove 15 is arranged on the working area, and the dustproof groove 15 is used to enhance the dustproof effect of the contact piece 30 during the working process. The waterproof groove 14 and the dustproof groove 15 are beneficial to realize waterproof and dustproof functions, thereby greatly prolonging the service life of the contact piece 30 .

The terminal group 20 includes a first terminal 21 and a second terminal 22 separated from each other, the first terminal 21 is provided with a first contact portion 211 and two first solder leg portions 212, the second terminal 22 is provided with a second contact part 221, a third contact part 222 and two second solder leg parts 223, the second contact part 21 and the third contact part 222 are respectively located on both sides of the first contact part 211, the first contact part 211, the second The contact portion 221 and the third contact portion 222 are installed together at the bottom of the accommodating cavity 11 , and the first leg portion 212 and the second leg portion 223 respectively extend out of the insulating base 10 .

The contact piece 30 is a concave sheet, the contact piece 30 is covered on the aforementioned terminal group 20 and located above the aforementioned dust-proof groove 15, and the edge of the contact piece 30 is in contact with the second contact portion 221 and the third contact portion 222, The first contact portion 211 maintains a certain vertical gap with the contact piece 30 .

The rubber body 40 is located above the contact piece 30, and the bottom of the rubber body 40 is provided with a limiting convex ring 41 and a waterproof convex ring 42. The limiting convex ring 41 is pressed on the edge of the contact piece 30 to limit the contact piece 30 Activities in the housing chamber 11. The waterproof protruding ring 42 is located on the periphery of the limiting protruding ring 41 . The waterproof protruding ring 42 is embedded in the aforementioned waterproof groove 14 and closely cooperates with the waterproof groove 14 to realize the waterproof function of the contact piece 30 and the terminal group 20 . At the center of the bottom of the rubber body 40, a bump 43 is provided. The bump 43 is in contact with the center of the surface of the contact piece 30, and the force transmitted by the bump 43 causes the contact piece 30 to sag downward so that the first terminal 21 and the second terminal 22 conduction. And, a hollow cylinder 44 extends upward from the center of the upper surface of the rubber body 40 .

The button 50 is located above the rubber body 40 , and a boss 51 is extended from the lower surface of the button 50 , and the boss 51 is tightly inserted into the aforementioned hollow cylinder 44 to realize the connection between the button 50 and the rubber body 40 . The button 50 is also provided with a cavity 52 with an opening facing upward. The lower end of the button 50 is freely movable in the accommodating cavity 11 . By applying force to the button 50, the rubber body 40 transmits the force to act on the contact piece 30 so that the contact piece deforms and touches the first contact portion 211, thereby conducting the first terminal 21 and the second terminal 22. After the button 50 is opened, the rubber body 40 and the contact piece 30 return to their original shape, and the first terminal 21 and the second terminal 22 are in a non-conductive state again.

The luminous element 60 is fixed on the insulating base, and the luminous element 60 includes a luminous body 61 and a set of metal pins 62 connected with the luminous body 61 . The illuminant 61 is accommodated in the cavity 52 of the aforementioned key 50 . The metal guide pin 62 is bent to form a transverse shoulder 621 and a vertical pin portion 622. For the metal guide pin 62, an upwardly opening fixing groove 122 is provided on the upper cover 12 and a fixing hole is provided on the base 13. 132 , the side edge of the opening of the fixing groove 122 covers the shoulder 621 of the metal guide pin 62 through thermal melting, and the pin portion 622 of the metal guide pin 62 extends downward through the fixing hole 132 and protrudes out of the base 13 .

The metal guide pin 62 and the aforementioned terminal group 20 are connected to the circuit board 100 in the following three ways:

Please refer to Fig. 5, it is the first connection method, the insulating base 10 is vertically placed on the circuit board 100, the pin part 622 (not shown in the figure) of the metal guide pin 62 and the first solder leg part of the terminal group 20 212 , and the second solder leg portion 223 pass through the circuit board 100 and are thermally melted connected to the lower surface of the circuit board 100 .

Please refer to Fig. 6, it is the second connection mode, the insulating base 10 is vertically placed on the circuit board 100, the pin part 622 (not shown in the figure) of the metal guide pin 62 and the first solder leg part of the terminal group 20 212 and the second solder leg portion 223 are respectively thermally melted and solidified on the upper surface of the circuit board 100 .

Please refer to Fig. 7, it is the third connection mode, the insulating base 10 is placed on the circuit board 100 horizontally, a bracket 70 is buckled under the insulating base 10, and one end of the bracket 70 is inserted into the circuit board 100 and connected with the circuit board 100 is thermally melted and solidified, and the bracket 70 can effectively enhance the connection strength between the insulating base 10 and the circuit board 100 . And the pin portion 622 (not shown in the figure) of the metal guide pin 62 and the first solder leg portion 212 and the second solder leg portion 223 of the terminal group 20 respectively pass through the circuit board 100 and are thermally fused with the lower surface of the circuit board 100 connect.

In addition, the present invention further includes a key cover, which mainly includes the following four types, namely the first key cover 81 , the second key cover 82 , the third key cover 83 and the fourth key cover 84 .

Wherein, please refer to FIG. 8 , which is a first embodiment, the first button cover 81 is pivotally mounted above the button 50 , and can be turned freely to provide the pressing force of the button 50 . One side of the first key cover 81 is provided with a hook block 811, and the upper cover 12 corresponding to the insulating seat 10 is provided with a hook groove 123 that cooperates with the hook block 811, and the hook groove 123 and the hook block 811 are interlocked and pivotally mounted. .

Please refer to FIG. 9 , which is a second embodiment. The second button cover 82 is inserted above the button 50 to provide the pressing force of the button 50. The second button cover 82 has a cavity 821 with an opening facing downwards. 821 is provided with a guide groove 822, corresponding to the button 50 is provided with a guide post 53 that cooperates with the guide groove 821, the upper part of the button 50 is inserted into the cavity 821, and the guide post 53 is tightly inserted into the guide groove 822 .

Please refer to FIG. 10 , which is a third embodiment. The third button cover 83 can slide up and down and act on the button 50 to provide the pressing force of the button 50. The third button cover 83 includes an upper cover body 831, a gasket 832 and The lower cover 833 , the upper cover 831 and the lower cover 833 are fastened together through button holes and protrusions, and the gasket 832 is sandwiched between the upper cover 831 and the lower cover 833 . A guide hole 834 is provided on the lower cover 833, and a hook-shaped guide block 133 is provided on the base 13 corresponding to the insulating base 10. The guide block 133 and the guide hole 834 are interlocked so that the third button cover 83 Sliding up and down under the restriction of the guide block 133 , the washer 832 is in contact with the button 50 .

Please refer to FIG. 11 , which is a fourth embodiment. The fourth key cover 84 can act on the upper surface of the key 50 to provide the pressing force of the key 50. The bottom of the fourth key cover 84 extends downward with a guide post 841. A guide hole 54 is provided on the upper surface corresponding to the button 50 , and the guide post 54 is tightly inserted into the guide hole 54 .

The working process of present embodiment is described in detail as follows:

As shown in FIG. 4 , when an external force acts on the key cover, the force is transmitted to the rubber body 40 through the key 50 , and the buffer of the rubber body 40 acts on the contact piece 30 indirectly. When the external operating force is greater than the load yield point of the contact piece 30, the central area of the contact piece 30 bends downward to conflict with the first contact portion 211 of the first terminal 21. At this time, the switch is in a conducting state, and the light emitting element 60 glows.

When the external force is less than the load that the contact piece 30 can bear, the contact piece 30 can overcome the external force, the central area of the contact piece 30 is disconnected from the first contact portion 211 of the first terminal 21, and returns to the natural state. When the switch is in the off state, the light emitting element 60 is not bright.

The light touch switch of the utility model can not directly act on the contact piece 30 due to the external force acting on the button 50 during the operation process, and the buffering effect of the rubber body 40 reduces the impact of the external force on the contact piece 30 during the operation process. The resulting damage, thereby ensuring the service life of the contact piece 30.

The key point of the design of this utility model is that, firstly, by providing a fixing groove on the insulating seat, the metal guide pin of the light-emitting element is positioned in the fixing groove, and then the light-emitting element and the insulating seat are solidified together by hot melting, and the structure Simple, convenient assembly, stable and reliable connection, and help to reduce production costs. Secondly, the base is provided with a waterproof groove and a dustproof groove, and the waterproof convex ring of the rubber body is closely matched with the waterproof groove, which has a good waterproof and dustproof effect and greatly prolongs the service life of the contact piece. Furthermore, through hot-melt connection of the terminal end and the metal guide pin end through the circuit board or directly on the circuit board, a variety of connection methods are realized, and the key cover can be matched with the button or button according to the shape of the key cover. The insulating seat realizes the connection and acts on the button, which enhances the flexibility of use of the switch.

The above are only preferred embodiments of the present utility model, and do not limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model , all still belong to the scope of the technical solution of the utility model.

Claims (10)

1. can be with lamp formula touch-switch for one kind, include an insulating base, this insulating base has the containing cavity that an opening makes progress, in containing cavity, be disposed with button from top to bottom, contact chip and terminal group, the bottom of button freely is active in the containing cavity, it is characterized in that: further include a light-emitting component that is installed on the insulating base, this light-emitting component comprises a luminous element and one group of metal lead foot that is connected with luminous element, this luminous element is accommodated in the button, this metal lead foot forms a horizontal shoulder and a vertical pin portion through bending, be provided with the holddown groove of upward opening in insulator, the opening lateral margin of this holddown groove envelopes the shoulder of metal lead foot through hot melt, and the pin portion of metal lead foot extends outside the insulating base downwards.

2. the lamp formula touch-switch of being with according to claim 1, it is characterized in that: further include a rubber bodies, this rubber bodies is sandwiched between contact chip and the button, be provided with position limiting convex ring and waterproof bulge loop in the bottom of rubber bodies, this position limiting convex ring is pressed on the edge of contact chip, this waterproof bulge loop is positioned at the periphery of position limiting convex ring, be provided with capillary groove in the bottom of containing cavity and further be provided with the annular convex ring that is used to strengthen waterproof effect in capillary groove at the waterproof bulge loop, this waterproof bulge loop closely is flush-mounted in the capillary groove.

3. the lamp formula touch-switch of being with according to claim 1, it is characterized in that: a button lid that is installed in the button top and can freely overturns and provide button to push active force further is provided, one side of this button lid is provided with colludes piece, be provided with and collude the groove that colludes that piece cooperatively interacts corresponding to insulating base, this colludes piece and colludes groove and fasten the pivot dress mutually.

4. the lamp formula touch-switch of being with according to claim 1, it is characterized in that: comprise that further one is plugged in the button lid that the button top provides button to push active force, this button lid has a downward opening cavity, in cavity, be provided with guide groove, be provided with the guide pillar that cooperatively interacts with guide groove corresponding to button, this button top is plugged in the button lid cavity, and this guide pillar tightly inserts in the guide groove.

5. the lamp formula touch-switch of being with according to claim 1, it is characterized in that: a button lid that slides up and down and provide button to push active force further is provided, this button lid includes a upper cover body, pad and lower cover, this upper cover body and lower cover fasten mutually, this pad is sandwiched between upper cover body and the lower cover, this lower cover is provided with guide hole, be provided with hook-shaped guide block corresponding to insulating base, this guide hole and guide block fasten mutually, loam cake slides up and down along guide block, and this pad contacts on the button.

6. the lamp formula touch-switch of being with according to claim 1, it is characterized in that: comprise that further one can act on the button upper surface and the button that button pushes active force lid is provided, this button lid bottom is provided with guide pillar, is provided with guide hole corresponding to the button upper surface, and this guide pillar tightly inserts in the guide hole.

7. the lamp formula touch-switch of being with according to claim 1, it is characterized in that: described insulating base vertically is positioned on the circuit board, the end of the end of this terminal group and metal lead foot passes circuit board and is connected with the lower surface hot melt of circuit board, and perhaps the end of the end of this terminal group and metal lead foot is consolidated in the upper surface of circuit board through hot melt.

8. the lamp formula touch-switch of being with according to claim 1, it is characterized in that: further include a support, one end of this support and insulating base snapping, this insulating base laterally lies against on the circuit board, and the end of the terminal metal lead foot of this terminal group and the other end of support pass circuit board and be connected with the lower surface hot melt of circuit board.

9. the lamp formula touch-switch of being with according to claim 1, it is characterized in that: described insulating base includes loam cake and base, also is consolidated in together through hot melt by being provided with the location notch and the reference column plug-in mounting that cooperatively interact between this loam cake and the base.

10. the lamp formula touch-switch of being with according to claim 1 is characterized in that: described base is provided with the dustproof groove that is used to strengthen the dustproof effect of contact chip in the below of contact chip.

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