CN217035484U

CN217035484U - Keyboard and touch control panel function integral type membrane switch

Info

Publication number: CN217035484U
Application number: CN202123103577.XU
Authority: CN
Inventors: 胡舟
Original assignee: Dongguan Mingzhi Electronic Technology Co ltd
Current assignee: Dongguan Mingzhi Electronic Technology Co ltd
Priority date: 2021-12-11
Filing date: 2021-12-11
Publication date: 2022-07-22
Anticipated expiration: 2031-12-11

Abstract

The utility model discloses a keyboard and touchpad function integrated membrane switch, and relates to the technical field of machining. The novel key cap comprises a key cap, wherein the bottom of the key cap is fixedly connected with a connecting plate, the bottom of the connecting plate is fixedly connected with a lifting structure, the outer surface of the lifting structure is fixedly connected with a fixing piece, the bottoms of two sides of the fixing piece are fixedly connected with connecting rods, the bottom of the key cap is provided with a control plate, and a left conductive unit and a right conductive unit are arranged inside the control plate. According to the utility model, through the structures of the left and right conductive units, the resistor, the sliding rod, the conductive spring and the like, the common upper and lower connecting structure is changed into left and right connection, the condition that the upper electrode plate is easy to cause permanent deformation due to long-time use is avoided, and the service life of the product is prolonged; through being equipped with interior pole, stationary blade, conductive spring isotructure, disperse the power that the key cap pushed down, reduced the damage that the internal structure brought of pushing down, make the key cap can be fine simultaneously reset.

Description

Keyboard and touch control panel function integral type membrane switch

Technical Field

The utility model belongs to the technical field of machining, and particularly relates to a keyboard and touchpad function integrated membrane switch.

Background

The membrane switch is an operation system integrating a key function, an indicating element and an instrument panel into a whole, generally comprises an upper circuit, an isolating layer and a lower circuit, and has the working principle that an upper circuit contact deforms downwards and is in contact conduction with a polar plate of the lower circuit, after a finger is loosened, the upper circuit contact rebounds, the circuit is disconnected, and a loop triggers a signal.

The patent specification with the application number of CN201120540757.1 discloses a membrane switch and a key and a keyboard with the membrane switch, the utility model comprises a first membrane and a second membrane, wherein one side of the first membrane is provided with a first conductive unit, the first conductive unit is composed of a plurality of first conductors, the second membrane is arranged on the side of the first membrane provided with the first conductors, the side of the second membrane facing the first membrane is provided with a second conductive unit, the second conductive unit is composed of at least one second conductor, the positions of the second conductive unit and the first conductive unit correspond to each other, and a space is arranged between the second conductive unit and the first conductive unit; when the application of force made first film and second film be close to relatively, one of them can form the electrical property with the contact of second electric conductor and switch on, this utility model through pressing down the electrode piece when using, thereby it is electrically conductive with lower electrode piece contact to make go up the electrode piece through deformation, realizes signal transmission, and long-time use makes easily to go up the electrode piece and causes permanent deformation, leads to going up the electrode piece and electrode piece contact down unusual, and the condition that the button can't be used appears.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

The present invention provides a keyboard and touchpad function integrated membrane switch to solve the above technical problems in the related art.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a keyboard and touchpad function integrated membrane switch which comprises a keycap, wherein the bottom of the keycap is fixedly connected with a connecting plate, the bottom of the connecting plate is fixedly connected with a lifting structure, the outer surface of the lifting structure is fixedly connected with a fixing piece, the bottoms of two sides of the fixing piece are fixedly connected with connecting rods, the bottom of the keycap is provided with a control board, and a left conductive unit and a right conductive unit are arranged inside the control board.

Further, a cavity is arranged between the left conductive unit and the right conductive unit, an opening is formed in the top of the cavity, two fixed blocks are fixedly mounted on the inner surface of the cavity, a resistor is arranged between the fixed blocks, and two sides of the resistor are fixedly connected to the left conductive unit and the right conductive unit respectively.

Further, the lifting structure comprises an inner rod, the top of the inner rod is fixedly connected to the bottom of the connecting plate, the bottom of the inner rod is fixedly connected with a sliding plate, one end of a spring is fixedly connected to the inside of the sliding plate, the other end of the spring is fixedly connected to the inner surface of the outer sleeve rod, and a limiting ring is fixedly mounted at the top of the outer sleeve rod.

Furthermore, the lower end of the connecting rod is movably connected with a sliding rod, a fixing bolt is arranged between the connecting rod and the sliding rod, and the fixing bolt is in threaded connection with a fixing nut.

Further, the lower end of the sliding rod is movably connected with a loop bar, the loop bar is connected to the outer surface of the resistor in a sliding mode, the inner side of the sliding rod is fixedly connected with a conductive spring, and the outer side surface of the sliding rod is fixedly connected with a conductive rod.

The utility model has the following beneficial effects:

1. according to the utility model, through the structures of the left and right conductive units, the resistor, the sliding rod, the conductive spring and the like, the common upper and lower connecting structure is changed into left and right connection, the situation that the upper electrode plate is easy to cause permanent deformation due to long-time use is avoided, and the service life of the product is prolonged.

2. Through being equipped with interior pole, stationary blade, conductive spring isotructure, disperse the power that the key cap pushed down, reduced the damage that the internal structure brought of pushing down, make the key cap can be fine simultaneously reset.

Of course, it is not necessary for any product to practice the utility model to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive work.

FIG. 1 is an overall cross-sectional view of an embodiment of the present invention;

fig. 2 is a partial structural display diagram of an embodiment of the utility model.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a keycap; 2. a connecting plate; 3. a lifting structure; 4. a fixing sheet; 5. a connecting rod; 6. a control panel; 7. a left conductive unit; 8. a right conductive unit; 9. a cavity; 10. an opening; 11. a fixed block; 12. a resistor; 13. a slide bar; 14. fixing the bolt; 15. fixing a nut; 16. a loop bar; 17. a conductive spring; 18. a conductive rod; 301. an inner rod; 302. a slide plate; 303. an outer loop bar; 304. a spring; 305. a limit ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive work based on the embodiments of the present invention belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "open", "upper", "lower", "top", "middle", "inner", and the like, indicate positional or orientational relationships and are used merely for convenience in describing the utility model and for simplicity in description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

Referring to fig. 1-2, the utility model relates to a keyboard and touchpad function integrated membrane switch, which comprises a keycap 1, wherein the bottom of the keycap 1 is fixedly connected with a connecting plate 2, the bottom of the connecting plate 2 is fixedly connected with a lifting structure 3, the outer surface of the lifting structure 3 is fixedly connected with a fixing plate 4, the bottoms of two sides of the fixing plate 4 are fixedly connected with connecting rods 5, the bottom of the keycap 1 is provided with a control board 6, and the inside of the control board 6 is provided with a left conductive unit 7 and a right conductive unit 8.

In one embodiment, for the left conductive unit 7 and the right conductive unit 8, a cavity 9 is disposed between the left conductive unit 7 and the right conductive unit 8, an opening 10 is disposed at the top of the cavity 9, two fixing blocks 11 are fixedly mounted on the inner surface of the cavity 9, a resistor 12 is disposed between the fixing blocks 11, two sides of the resistor 12 are respectively and fixedly connected to the left conductive unit 7 and the right conductive unit 8, so that the left conductive unit and the right conductive unit are separated by mounting the resistor 12 in the cavity 9, a gap is disposed between the fixing blocks 11 to allow the resistor 12 to penetrate through the fixing blocks 11, and the resistor 12 is further configured to non-conductively connect the left conductive unit and the right conductive unit inside the cavity 9.

In an embodiment, for the lifting structure 3, the lifting structure 3 includes an inner rod 301, the top of the inner rod 301 is fixedly connected to the bottom of the connecting plate 2, the bottom of the inner rod 301 is fixedly connected with a sliding plate 302, one end of a spring 304 is fixedly connected inside the sliding plate 302, the other end of the spring 304 is fixedly connected to the inner surface of an outer loop 303, a limiting ring 305 is fixedly mounted at the top of the outer loop 303, so that the inner rod 301 is pressed down by pressing the key cap 1 to drive the fixing plate 4 to move downward, the inner rod 301 is bounced again by the spring 304 after pressing, the height of the sliding plate 302 is limited by the limiting ring 305 so that the inner rod 301 cannot fall out of the outer loop 303, thereby realizing pressing and resetting of the key cap 1 and simultaneously driving other components to operate together.

In one embodiment, for the connecting rod 5, a sliding rod 13 is movably connected to the lower end of the connecting rod 5, a fixing bolt 14 is arranged between the connecting rod 5 and the sliding rod 13, and the fixing bolt 14 is in threaded connection with a fixing nut 15, so that when the connecting rod 5 is movably connected with the sliding rod 13, the fixing plate 4 moves downwards, the connecting rod 5 drives the sliding rod 13 to push towards two sides, and the downward force of the fixing plate 4 is changed into a force applied towards two sides.

In an embodiment, for the above sliding rod 13, a loop bar 16 is movably connected to the lower end of the sliding rod 13, the loop bar 16 is slidably connected to the outer surface of the resistor 12, a conductive spring 17 is fixedly connected to the inner side of the sliding rod 13, and a conductive rod 18 is fixedly connected to the outer surface of the sliding rod 13, so that the lower end of the sliding rod 13 can horizontally move by movably connecting the loop bar 16 through the sliding rod 13, the sliding rod 13 drives the conductive rod 18 to extend towards both sides, the conductive spring 17 can conduct electricity when the sliding rod 13 extends towards both sides, and after extension, the conductive spring 17 contracts towards the middle to play a role of assisting the key cap 1 to reset, thereby realizing that the left and right conductive units are connected by pressing the key cap 1, and avoiding the occurrence of permanent deformation of the upper electrode plate due to long-time use.

Through the technical scheme, 1, through the structures of the left and right conductive units, the resistor 12, the sliding rod 13, the conductive spring 17 and the like, the common upper and lower connecting structure is changed into left and right connection, the condition that the upper electrode plate is easy to cause permanent deformation due to long-time use is avoided, and the service life of the product is prolonged; 2. through being equipped with interior pole 301, stationary blade 4, conducting spring 17 isotructure, disperse the power that key cap 1 pushed down, reduced the damage that the internal structure brought of pushing down, make key cap 1 can be fine simultaneously reset.

In the description of the present specification, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are only for the purpose of helping to explain the present invention. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and its practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a keyboard and touch-control board function integral type membrane switch, includes key cap (1), its characterized in that: the improved portable electronic device is characterized in that the bottom of the key cap (1) is fixedly connected with a connecting plate (2), the bottom of the connecting plate (2) is fixedly connected with a lifting structure (3), the outer surface of the lifting structure (3) is fixedly connected with a fixing piece (4), the bottom of two sides of the fixing piece (4) is fixedly connected with a connecting rod (5), the bottom of the key cap (1) is provided with a control panel (6), and a left conductive unit (7) and a right conductive unit (8) are arranged inside the control panel (6).

2. The keyboard and touchpad function integrated membrane switch according to claim 1, wherein a cavity (9) is arranged between the left conductive unit (7) and the right conductive unit (8), an opening (10) is arranged at the top of the cavity (9), two fixed blocks (11) are fixedly arranged on the inner surface of the cavity (9), a resistor (12) is arranged between the fixed blocks (11), and two sides of the resistor (12) are respectively and fixedly connected to the left conductive unit (7) and the right conductive unit (8).

3. The keyboard and touch pad function integrated membrane switch according to claim 1, wherein the lifting structure (3) comprises an inner rod (301), the top of the inner rod (301) is fixedly connected to the bottom of the connecting plate (2), the bottom of the inner rod (301) is fixedly connected with a sliding plate (302), one end of a spring (304) is fixedly connected to the inside of the sliding plate (302), the other end of the spring (304) is fixedly connected to the inner surface of an outer sleeve rod (303), and a limit ring (305) is fixedly mounted at the top of the outer sleeve rod (303).

4. The keyboard and touchpad function integrated membrane switch according to claim 2, wherein a sliding rod (13) is movably connected to the lower end of the connecting rod (5), a fixing bolt (14) is arranged between the connecting rod (5) and the sliding rod (13), and the fixing bolt (14) is in threaded connection with a fixing nut (15).

5. The keyboard and touchpad function integrated membrane switch according to claim 4, wherein a loop bar (16) is movably connected to the lower end of the sliding bar (13), the loop bar (16) is slidably connected to the outer surface of the resistor (12), a conductive spring (17) is fixedly connected to the inner side of the sliding bar (13), and a conductive bar (18) is fixedly connected to the outer surface of the sliding bar (13).