CN214705778U

CN214705778U - High-sensitivity ultra-thin flexible circuit board with key switch

Info

Publication number: CN214705778U
Application number: CN202120707644.XU
Authority: CN
Inventors: 徐芬
Original assignee: Shenzhen Xingzhanhui Electronic Technology Co ltd
Current assignee: Shenzhen Xingzhanhui Electronic Technology Co ltd
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2021-11-12
Anticipated expiration: 2031-04-08

Abstract

The utility model discloses a high sensitive ultra-thin type flexible line way board with key switch, the on-line screen storage device comprises a base, the bottom fixedly connected with circuit board of base, it is connected with same pivot to rotate between the both sides inner wall of base, the outer wall cover of pivot is equipped with key switch, the first solid fixed cylinder of one side inner wall fixedly connected with of key switch, the inner wall fixedly connected with magnet of first solid fixed cylinder, one side inner wall of base is fixed and is equipped with hall element, the solid fixed cylinder of one side inner wall fixedly connected with of base, the first spring of the inner wall fixedly connected with of solid fixed cylinder, the one end of first spring and one side inner wall fixed connection of key switch. Compared with the prior art, the utility model discloses a key switch, magnet, hall element, first spring, draw-in groove, card cap, second spring have been set up, the device simple structure, reasonable in design, and it is high to switch on sensitivity, and the wearing and tearing that switch on between the subassembly are low, have improved life.

Description

High-sensitivity ultra-thin flexible circuit board with key switch

Technical Field

The utility model relates to a circuit board technical field especially relates to a high sensitive ultra-thin type flexible line way board with key switch.

Background

After the key switch is produced, the conducting pin of the key switch needs to be connected to a welding foot on the circuit board, and then the key switch needs to be connected with the circuit board. The existing key switches are directly fixed on the circuit board. Most of the prior art devices adopt a static sheet and a moving sheet contact type conduction assembly, so that the switch conduction sensitivity is low, and the service life of the switch can be greatly reduced due to abrasion between the conduction assemblies.

Through search, the patent with the publication number of CN2077441510U granted by chinese patent discloses a key switch for an ultra-thin soft core circuit board, which comprises a conductive electrode plate, a key switch, and an elastomer core-guiding device. The key switch for the ultrathin soft core circuit board in the patent has the following defects: the conductive electrode plate is separated from the conductive electrode plate, so that the key switch disconnection function is realized; the conducting shaft of the elastomer conducting core is pressed downwards to enable the position of a via hole of the conducting electrode plate on the spacer plate to deform downwards, so that the conducting electrode plate is in contact with the conducting electrode plate to achieve a conducting function.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a high-sensitivity ultra-thin flexible circuit board with a key switch.

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

a high-sensitivity ultra-thin flexible circuit board using a key switch comprises a base, wherein the bottom of the base is fixedly connected with a circuit board, the same rotating shaft is rotatably connected between the inner walls of the two sides of the base, the outer wall of the rotating shaft is sleeved with the key switch, the inner wall of one side of the key switch is fixedly connected with a first fixed cylinder, the inner wall of the first fixed cylinder is fixedly connected with a magnet, the inner wall of one side of the base is fixedly provided with a Hall element, the inner wall of one side of the base is fixedly connected with a fixed cylinder, the inner wall of the fixed cylinder is fixedly connected with a first spring, one end of the first spring is fixedly connected with the inner wall of one side of the key switch, the two sides of the key switch are respectively provided with a clamping groove, the two sides of the base are respectively provided with a first groove, the base is slidably connected with a clamping cap at the groove, and the inner walls of the two clamping caps are provided with a second spring, one end of each second spring is fixedly connected with the inner wall of one side of the corresponding first groove, and the two clamping caps are matched with the clamping grooves.

Furthermore, the both ends of pivot are equal fixedly connected with threaded rod, two the outer wall threaded connection of threaded rod has the nut.

Furthermore, the Hall element is electrically connected with the circuit board.

Further, one side fixedly connected with flexible line way board of circuit board, flexible line way board extends to the inside of base, the second recess has been seted up at the top of base, the base is at second recess fixedly connected with LED illuminator, LED illuminator and flexible line way board electric connection.

Furthermore, the LED illuminator comprises a luminous lamp tube, epoxy resin is filled in the LED illuminator, and two sides of the LED illuminator are provided with fastening grooves.

Furthermore, the same elastic sealing ring is fixedly connected to the inner walls of the four sides of the base, and ribs are fixedly connected to the inner walls of the key switches.

The utility model has the advantages that:

1. by arranging the key switch, the magnet, the Hall element, the second fixed cylinder, the first spring, the clamping groove, the clamping cap, the second spring, the threaded rod, the nut and the circuit board, the first spring is stretched in the second fixed cylinder by pressing the key switch downwards, the clamping cap is clamped with the clamping groove, the second spring is compressed, the key switch is fixed after rotating, so that the magnet is close to a Hall element, the Hall element generates a Hall effect under the magnetic force of the magnet and generates a high-voltage level, the circuit board is connected into a circuit, so that the key switch is switched on, the first spring is restored to the original position by rotating the key switch upwards, the clamping groove is separated from the clamping cap, the key switch is switched off, the key switch can be conveniently disassembled and installed through the threaded rod and the nut, the device has simple structure, reasonable design and high switching-on sensitivity, the abrasion among the conducting components is low, and the service life is prolonged;

2. by arranging the flexible circuit board, the LED illuminator, the luminous lamp tube, the epoxy resin and the catching groove, when the circuit board is connected into the circuit, the LED illuminator is connected into the circuit through the flexible circuit board, so that the luminous lamp tube is lightened, people can be reminded that the device works, the luminous lamp tube can be diffused through the epoxy resin, the device is brighter, the purpose of striking reminding can be achieved, and the LED illuminator can be conveniently disassembled and installed through the catching groove;

3. through having set up elastic sealing circle, muscle, guarantee the leakproofness in the base through elastic sealing circle, prevent that the dust from getting into, can make key switch more firm durable through the muscle to can guarantee the device's life.

Drawings

Fig. 1 is a schematic perspective view of a high-sensitivity ultra-thin flexible printed circuit board using a key switch in embodiment 1;

fig. 2 is a schematic front view of a high-sensitivity ultra-thin flexible printed circuit board using a key switch in embodiment 1;

fig. 3 is a schematic front view of an internal structure of a high-sensitivity ultra-thin flexible printed circuit board using a key switch according to embodiment 1;

fig. 4 is a schematic diagram of a top-down cross-sectional structure of a high-sensitivity ultra-thin flexible printed circuit board using a key switch in embodiment 1;

fig. 5 is a schematic front view of an internal structure of a high-sensitivity ultra-thin flexible printed circuit board using a key switch in embodiment 2.

In the figure: the LED lamp comprises a base 1, a rotating shaft 2, a key switch 3, a first fixing barrel 4, a magnet 5, a Hall element 6, a second fixing barrel 7, a first spring 8, a clamping groove 9, a clamping cap 10, a second spring 11, a threaded rod 12, a nut 13, a circuit board 14, a flexible circuit board 15, an LED illuminator 16, a light-emitting lamp tube 17, epoxy resin 18, a buckling groove 19, an elastic sealing ring 20 and ribs 21.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example 1

Referring to fig. 1-4, a high-sensitivity ultra-thin flexible printed circuit board using a key switch comprises a base 1, a circuit board 14 is fixedly connected to the bottom of the base 1, the same rotating shaft 2 is rotatably connected between the inner walls of the two sides of the base 1, a key switch 3 is sleeved on the outer wall of the rotating shaft 2, a first fixed cylinder 4 is fixedly connected to the inner wall of one side of the key switch 3, a magnet 5 is fixedly connected to the inner wall of the first fixed cylinder 4, a hall element 6 is fixedly arranged on the inner wall of one side of the base 1, the hall element 6 is A3144EUA, a fixed cylinder 7 is fixedly connected to the inner wall of one side of the base 1, a first spring 8 is fixedly connected to the inner wall of one side of the fixed cylinder 7, one end of the first spring 8 is fixedly connected to the inner wall of one side of the key switch 3, both sides of the key switch 3 are provided with a clamping groove 9, both sides of the base 1 are provided with a first groove, the base 1 is connected with clamping caps 10 at the groove in a sliding manner, the inner walls of the two clamping caps 10 are provided with second springs 11, one ends of the two second springs 11 are fixedly connected with the inner wall at one side of the first groove, the two clamping caps 10 are matched with the clamping grooves 9, two ends of the rotating shaft 2 are fixedly connected with threaded rods 12, the outer walls of the two threaded rods 12 are in threaded connection with nuts 13, the first spring 8 is stretched in the second fixing cylinder 7 by downwards pressing the key switch 3, the clamping caps 10 are clamped with the clamping grooves 9, the second springs 11 are compressed, the key switch 3 is fixed after being rotated, so that the magnet 5 is close to the Hall element 6, the Hall element 6 generates a Hall effect under the magnetic force of the magnet 5 and generates a high-voltage level, the circuit board 14 is connected into a circuit, the key switch 3 is switched on by upwards rotating the key switch 3, make first spring 8 resume the normal position, draw-in groove 9 and the separation of card cap 10 to realize the disconnection of key switch 3, can conveniently dismantle and install key switch 3 through threaded rod 12 and nut 13, the device simple structure, reasonable in design, and it is high to switch on sensitivity, and the wearing and tearing that switch on between the subassembly are low, have improved life.

Wherein, the hall element 6 is electrically connected with a circuit board 14, one side of the circuit board 14 is fixedly connected with a flexible circuit board 15, the flexible circuit board 15 extends to the inside of the base 1, the top of the base 1 is provided with a second groove, the base 1 is fixedly connected with an LED illuminator 16 at the second groove, the model of the LED illuminator 16 is 5050RGBW, the LED illuminator 16 is electrically connected with the flexible circuit board 15, the LED illuminator 16 comprises a light-emitting lamp tube 17, the inside of the LED illuminator 16 is filled with epoxy resin 18, two sides of the LED illuminator 16 are provided with catching grooves 19, when the circuit board 14 is connected with a circuit, the LED illuminator 16 is connected with the circuit through the flexible circuit board 15, so that the light-emitting lamp tube 17 lights up, people can remind that the device is working, the light-emitting lamp tube 17 can be diffused through the epoxy resin 18, so as to be brighter, therefore, the purpose of striking reminding can be achieved, and the LED light emitter 17 can be conveniently detached and installed through the buckle groove 19.

The working principle is as follows: when the device is used, the key switch 3 is pressed downwards, the first spring 8 is stretched in the second fixed cylinder 7, the clamping cap 10 is clamped with the clamping groove 9, the second spring 11 is compressed, the key switch 3 is fixed after rotating, the magnet 5 is close to the Hall element 6, the Hall element 6 is under the magnetic force of the magnet 5 to generate Hall effect and generate high voltage level, the circuit board 14 is connected into a circuit, the conduction of the key switch 3 is realized, the first spring 8 is restored to the original position by rotating the key switch 3 upwards, the clamping groove 9 is separated from the clamping cap 10, the key switch 3 is disconnected, the key switch 3 can be conveniently detached and installed through the threaded rod 12 and the nut 13, the device has simple structure, reasonable design, high conduction sensitivity and low abrasion among conduction components, the service life is prolonged, when the circuit board 14 is connected into the circuit, make LED illuminator 16 access circuit through flexible line way board 15 to make luminous fluorescent tube 17 light up, can remind people's device to work, can make luminous fluorescent tube 17 disperse through epoxy 18, make brighter, thereby can play striking purpose of reminding, can conveniently dismantle the installation to LED illuminator 17 through catching groove 19.

Example 2

Referring to fig. 5, compared with embodiment 1, in this embodiment, in order to improve the practicability of the apparatus, the same elastic sealing ring 21 is fixedly connected to the inner walls of four sides of the base 1, and the rib 22 is fixedly connected to the inner wall of the key switch 3.

The working principle is as follows: when the device is used, the key switch 3 is pressed downwards, the first spring 8 is stretched in the second fixed cylinder 7, the clamping cap 10 is clamped with the clamping groove 9, the second spring 11 is compressed, the key switch 3 is fixed after rotating, the magnet 5 is close to the Hall element 6, the Hall element 6 is under the magnetic force of the magnet 5 to generate Hall effect and generate high voltage level, the circuit board 14 is connected into a circuit, the conduction of the key switch 3 is realized, the first spring 8 is restored to the original position by rotating the key switch 3 upwards, the clamping groove 9 is separated from the clamping cap 10, the key switch 3 is disconnected, the key switch 3 can be conveniently detached and installed through the threaded rod 12 and the nut 13, the device has simple structure, reasonable design, high conduction sensitivity and low abrasion among conduction components, the service life is prolonged, when the circuit board 14 is connected into the circuit, make LED illuminator 16 access circuit through flexible line way board 15, thereby make luminous tube 17 light up, can remind people's device working, can make luminous tube 17 disperse through epoxy 18, make brighter, thereby can play the purpose of striking warning, can conveniently dismantle the installation to LED illuminator 17 through catching groove 19, guarantee the leakproofness in the base 1 through elastic sealing ring 21, prevent that the dust from getting into, it is firmer to make key switch 3 more firm through muscle 22, thereby can guarantee the device's life.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A high-sensitivity ultra-thin flexible circuit board with a key switch comprises a base (1) and is characterized in that a circuit board (14) is fixedly connected to the bottom of the base (1), the inner walls of the two sides of the base (1) are rotatably connected with a same rotating shaft (2), the outer wall of the rotating shaft (2) is sleeved with the key switch (3), a first fixed cylinder (4) is fixedly connected to the inner wall of one side of the key switch (3), a magnet (5) is fixedly connected to the inner wall of the first fixed cylinder (4), a Hall element (6) is fixedly arranged on the inner wall of one side of the base (1), a fixed cylinder (7) is fixedly connected to the inner wall of one side of the base (1), a first spring (8) is fixedly connected to the inner wall of the fixed cylinder (7), one end of the first spring (8) is fixedly connected with the inner wall of one side of the key switch (3), draw-in groove (9) have all been seted up to the both sides of key switch (3), first recess has all been seted up to the both sides of base (1), base (1) has card cap (10), two in groove connection the inner wall of card cap (10) is equipped with second spring (11), two the one end of second spring (11) and one side inner wall fixed connection of first recess, two card cap (10) and draw-in groove (9) looks adaptation.

2. The high-sensitivity ultra-thin flexible circuit board with the key switch is characterized in that two ends of the rotating shaft (2) are fixedly connected with threaded rods (12), and the outer walls of the two threaded rods (12) are in threaded connection with nuts (13).

3. The high-sensitivity ultra-thin flexible circuit board for the key switch according to claim 1, wherein the Hall element (6) is electrically connected with the circuit board (14).

4. The high-sensitivity ultra-thin flexible circuit board for the key switch according to claim 1, wherein a flexible circuit board (15) is fixedly connected to one side of the circuit board (14), the flexible circuit board (15) extends into the base (1), a second groove is formed in the top of the base (1), an LED illuminator (16) is fixedly connected to the second groove of the base (1), and the LED illuminator (16) is electrically connected to the flexible circuit board (15).

5. The high-sensitivity ultra-thin flexible circuit board with the key switch is characterized in that the LED illuminator (16) comprises a light-emitting lamp tube (17), the interior of the LED illuminator (16) is filled with epoxy resin (18), and two sides of the LED illuminator (16) are provided with buckling grooves (19).

6. The high-sensitivity ultra-thin flexible printed circuit board using the key switch as claimed in claim 1, wherein the same elastic sealing ring (21) is fixedly connected to the inner walls of the four sides of the base (1), and the rib (22) is fixedly connected to the inner wall of the key switch (3).