CN216751708U

CN216751708U - Touch-sensitive button mechanism with waterproof dustproof function and can give out light

Info

Publication number: CN216751708U
Application number: CN202123123057.5U
Authority: CN
Inventors: 王秀宇; 陈健; 马丙林; 徐淑珍
Original assignee: Shenyang Torch Bigtide Digital Technology Co ltd
Current assignee: Shenyang Torch Bigtide Digital Technology Co ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-06-14
Anticipated expiration: 2031-12-13

Abstract

The utility model relates to the field of touch induction keys, in particular to a luminous touch induction key mechanism with waterproof and dustproof functions, which comprises: the touch key comprises a key shell, a key fixing body, a conducting sheet, a touch key board and a display film; the conducting sheet is welded on the touch key board; the button fixing body is provided with a groove, the conducting sheet is embedded into the groove from the bottom surface of the button fixing body, and the touch button plate is fixedly connected with the button fixing body; the key fixing body is bonded with the key shell; the touch key board is characterized in that a display film is arranged between the key fixing body and the key shell, positioning holes are formed in the display film, the positions of the positioning holes are adjusted through positioning pins on the key fixing body, the display film is pasted on the key fixing body, and screws are used for fixedly connecting the touch key board and the key fixing body through screw holes. The integral structure of the utility model has safe and reliable design strength, can trigger signals by contact, and effectively prolongs the service life of the key. And the luminous key has waterproof and dustproof functions and can be widely popularized to display any pattern.

Description

Touch-sensitive button mechanism with waterproof dustproof function and can give out light

Technical Field

The utility model relates to the field of touch sensing keys, in particular to a touch sensing key mechanism with waterproof and dustproof functions and capable of emitting light.

Background

In the modern medical field, the requirements for the key functions of human-computer interaction equipment are very many, the key is widely applied to equipment for surgery and diagnosis and treatment, medical workers need to conveniently use the key in various working occasions, and the key has the characteristics of convenience in operation, quick response, direct feedback, water resistance, dust resistance and the like. The touch key has unique advantages and can be widely applied to control panels of human-computer interface products suitable for various application scenes.

The light touch switch completes the switching of the on-off state of the switch by utilizing the metal elastic sheet, has good hand feeling, is accompanied by the occurrence of clicking sound when a button is pressed to a certain degree, and mainly comprises a cover plate, the button, the elastic sheet, a base and a pin, wherein the button refers to an external force applying part; the elastic sheet is a key component of the tact switch, and the on-off of the switch is caused by the stress change of the elastic sheet; the pins refer to the joints of the tact switch and the circuit, generally comprise five pins, one in each group, and one pin is used for grounding, when the switch is stressed correctly, the four pins are conducted to conduct the circuit, and when the switch does not apply pressure to the switch by correct external force, the four pins in each group are not communicated, so that the circuit is in a disconnected state. When a user presses a button of the tact switch, the elastic sheet of the tact switch is deformed under the action of elastic force and downwards contacts the soldering lug, so that two groups of pins of the switch are conducted, and a circuit is in a conducting state; when the elastic sheet is deformed and returns to the original state and is separated from the soldering lug, the two groups of pins of the switch are not conducted any more, and therefore the circuit is in a cut-off state.

At present, the contact key is widely used in a medical controller, but the contact key is generally an independent signal and cannot meet the requirement of dual-signal output; secondly, the traditional key mechanism usually needs to be matched with an external silica gel or plastic key to conduct and enable contacts to be communicated, and the service life of the traditional key mechanism is influenced by a combined piece; moreover, the performance of the contact button in the aspect of waterproof and dustproof performance is not excellent, and the overall upgrade and development of medical display products are severely restricted.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a touch sensing key mechanism with waterproof and dustproof functions and capable of emitting light, and provides a touch sensing key mechanism which has a light-emitting key, is a signal output touch key design with direct touch signal conduction and feedback, meets the dustproof and waterproof functions and overcomes the defects in the prior art.

The technical scheme adopted by the utility model for realizing the purpose is as follows: the utility model provides a touch-sensitive button mechanism with waterproof dustproof function and can give out light, includes: the touch key comprises a key shell, a key fixing body, a conducting sheet, a touch key board and a display film;

the conductive sheet is welded on the touch key board; the button fixing body is provided with a groove, the conducting sheet is embedded into the groove from the bottom surface of the button fixing body, and the touch button plate is fixedly connected with the button fixing body;

The key fixing body is adhered to the key shell; the display film is arranged between the key fixing body and the key shell and is bonded with the key fixing body, a screw hole is formed in the touch key board, and the touch key board and the key fixing body are fixedly connected through the screw hole by a screw.

The key shell is a transparent PC plastic shell, and light-transmitting ink is coated on the inner surface of the key shell.

The key fixing body is an ABS plastic shell.

The conducting piece is a light guide piece of a box body structure without a bottom surface, and a round hole is formed in the center of the top surface of the conducting piece.

The conducting sheet is a light guiding sheet made of tinplate.

The number of the conductive sheets is two, and the conductive sheets are symmetrically welded on the touch key board along the central line of the touch key board.

The size of the groove of the key fixing body is matched with the size of the conducting piece. The display film is a transparent PET film,

the display film is provided with a light-transmitting mark, and the position of the light-transmitting mark corresponds to the groove of the key fixing body and is positioned at the center of the round hole of the conducting sheet;

the back of the display film is coated with black ink, the light-transmitting mark is a transparent PET film, and the area outside the light-transmitting mark is coated with the black ink;

The display film is provided with a positioning hole so as to adjust the position of the display film through the positioning pin, and the display film is bonded with the key fixing body through a double-sided adhesive tape.

The top surface of the touch key board is provided with a touch conduction induction module and an LED lamp strip which are connected with each other;

the number of the touch conduction induction modules is the same as that of the conduction pieces, and the touch conduction induction modules are arranged right below the circular hole in the center of the conduction piece;

the touch conduction induction module is connected with a power supply, LED lamp belts are arranged around the touch conduction induction module, the power supply is switched on, the LED lamp belts realize luminous display, and the touch conduction induction module is standby to form a passage after the touch conduction induction module triggers in a touch induction mode.

The LED lamp strip is arranged under the round hole in the center of the conducting sheet, so that the LED lamp strip emits light and is conducted to the display film through the round hole.

The utility model has the following beneficial effects and advantages:

1. the utility model has the characteristics of simple whole structure, stable trigger signal and the like.

2. The integral structure of the utility model has safe and reliable design strength, can trigger signals by contact, and effectively prolongs the service life of the key.

3. The structure of the utility model has wide popularization and can display the luminous keys with any pattern.

4. The key with the structure has the waterproof and dustproof functions, and the protection function is added to the internal parts of the mechanism.

5. According to the utility model, the sensing distance is increased to the inner surface of the key shell 1 through the conducting sheet 3, and when the key shell is operated by a hand, the sensing function can be triggered by touching the surface of the key shell 1.

6. The utility model can trigger the function by touching the key position with the finger without applying pressure, thereby being convenient for operation.

7. The key mark, namely the light-transmitting mark, is arranged on the display film and is displayed on the key shell, the light-emitting keys with any patterns can be arranged according to the requirement, and the light-emitting key is resistant to wiping and pressing of various environments, solvents and organisms and does not fall off or fade.

Drawings

FIG. 1 is an overall block diagram of the present invention;

FIG. 2 is an overall exploded view of the present invention;

wherein, 1 is the button casing, 2 is the button fixed body, 3 is the conduction piece, 4 touch keypad, 5 are the display film, 6 are the recess, 7 are the printing opacity sign, 8 are the round hole, 9 are LED lamp area, 10 are touch conduction response module, 11 are the double faced adhesive tape.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

As shown in fig. 1 and fig. 2, which are schematic structural diagrams of the present invention; the utility model includes: the touch key comprises a key shell 1, a key fixing body 2, a conducting sheet 3, a touch key board 4 and a display film 5;

the conductive sheet 3 is welded on the touch key board 4; the key fixing body 2 is provided with a groove 6, the conducting sheet 3 is embedded into the groove 6 from the bottom surface of the key fixing body 2, and the touch key plate 4 is fixedly connected with the key fixing body 2;

the key fixing body 2 is bonded with the key shell 1; a display film 5 is arranged between the key fixing body 2 and the key shell 1, the display film 5 is bonded with the key fixing body 2, a screw hole is formed in the touch key plate 4, and a screw is fixedly connected with the touch key plate 4 and the key fixing body 2 through the screw hole.

The key shell 1 is formed by injection molding, the inner surface of the key shell is coated with transparent ink, the key shell can have a transparent display function, patterns for displaying transparent keys are formed, the whole part of the key shell is also used as an appearance display and protection housing of the whole part structure, and the key shell has a function of shielding an internal structure. And the key brightness of different patterns can be formed according to different key patterns arranged on the display film 5;

the key fixing body 2 is an ABS plastic shell and forms the framework connection of the whole mechanism.

The conducting sheet 3 is a light guiding sheet with a box structure without a bottom surface, and a round hole 8 is arranged at the center of the top surface of the conducting sheet 3.

The conducting sheet 3 is a light guiding sheet of a tinplate, a circular hole is formed in the conducting sheet, the LED lamp strip 9 emits light and conducts the light to the display film 5 through the circular hole 8, and meanwhile the touch function is conducted, so that the effective triggering distance of the touch induction key is guaranteed.

The number of the conductive sheets 3 is two, and the conductive sheets are symmetrically welded on the touch key sheet 4 along the center line of the touch key sheet 4.

The size of the groove 6 of the key fixing body 2 is matched with that of the conducting sheet 3.

Display film 5 is transparent PET film, and display film 5's back scribbles black printing ink, can the silk screen printing go out different transparent button patterns, and special gum is attached to the while, and display film 5 bonds with button fixed body 2 through double-sided tape, laminates with the fixed body. The display film 5 is provided with a light-transmitting mark 7 (namely a key mark), and the position of the light-transmitting mark 7 corresponds to the groove 6 of the key fixing body and is positioned at the center of the round hole 8 of the conducting sheet 3.

The light-transmitting mark 7 is a transparent PET film, and black ink is coated in the area outside the light-transmitting mark 7;

the display film 5 is provided with a positioning hole so as to adjust the position of the display film 5 through the positioning pin.

The special back adhesive is a double-sided adhesive tape and is adhered to the fixed body, and the key fixed body 2 is fixedly attached to the key shell 1.

The top surface of the touch key board 4 is provided with a touch conduction induction module 10 and an LED lamp strip 9 which are connected with each other;

the number of the touch conduction induction modules 10 is the same as that of the conduction pieces 3, and the touch conduction induction modules are arranged right below the round hole 8 in the center of the conduction pieces (3);

the touch conduction induction module 10 is connected with a power supply, the LED lamp strips 9 are arranged around the touch conduction induction module 10, the power supply is switched on, the LED lamp strips 9 realize luminous display, and the touch conduction induction module 10 is standby to form a passage after the touch conduction induction module 10 triggers in a touch induction mode.

The LED lamp strip 9 is arranged under the round hole 8 in the center of the conducting piece 3, so that the LED lamp strip 9 emits light and is conducted to the display film 5 through the round hole 8.

And (3) analyzing the whole structure: as shown in fig. 1-2, the present invention is characterized in that the key housing 1 is a transparent PC plastic housing fixed body, which forms a base body of the key structure. The whole that constitutes with the earlier welding of conduction piece 3 on touch key board 4 puts into the recess 6 that the button fixed body 2 corresponds, fixes it on button fixed body 2 through the screw, pastes display film 5 along the locating pin hole afterwards, pastes the double faced adhesive tape 11 of special gum, pastes button housing 1 on the fixed body through double faced adhesive at last, constitutes holistic luminous touch button structure.

Waterproof and dustproof structure analysis: the key shell 1 comprises an internal component, the front side is waterproof and dustproof, the internal electronic device can be better protected from being interfered by external impurities, the internal part and the electronic device are protected from being invaded by the external impurities, the waterproof and dustproof key has the advantages of being compared with a common key, the key is obvious in medical actual use, the key can be cleaned or mistakenly operated, water splash and liquid are effectively prevented from permeating medical equipment through the key position, and the function of the key position of the medical equipment is disabled.

Key luminous display and touch function structure analysis: the touch conduction induction module 10 is a universal induction module in the prior art, has a touch key induction function, is limited by distance at present, and the transmission induction distance in a medium is generally less than 2 mm. Meanwhile, the LED lamp strip 9 is designed in the touch sensing area of the touch circuit board 4, after the whole machine is electrified, the LED lamp strip 9 on the key board emits light, the key pattern is displayed on the key shell 1 through the round hole 8 of the conducting sheet 3 and the display film 5, and therefore the mechanism of the light-emitting display key is completed. After the whole machine is powered off, the key pattern disappears on the screen, and the key function is closed.

The working principle of the utility model is as follows:

the key casing 1 is a transparent PC plastic casing fixed body, and forms a base body of the key structure. The whole formed by welding the conducting sheet 3 on the touch key board 4 is placed in the groove 6 corresponding to the key fixing body 2, the conducting sheet is fixed on the key fixing body 2 through a screw, then the display film 5 is pasted along the positioning pin hole, the double-sided adhesive tape 11 of the special back adhesive is pasted, and finally the key shell 1 is pasted on the fixing body through the double-sided adhesive to form the whole luminous touch key structure. Compared with other mechanical keys, the function can be triggered by the finger touching the key position without applying pressure, so that the operation is convenient;

the button sign (i.e. printing opacity sign) that shows film 5 shows in button casing 1 surface through the light source, can be able to bear or endure various environment, the wiping and the pressing of solvent and organism, do not take place to drop and the problem that fades, the complete machine circular telegram back, LED lamp area 9 on the keypad is luminous, see through round hole 8 and the display film 5 of conduction piece 3, show the button pattern on button casing 1, thereby the mechanism of luminous display button has been accomplished, the luminous button of showing arbitrary pattern, compare in mechanical type button, bring high-end operation experience and visual sensation for the operator.

The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, extension, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. The utility model provides a touch-sensitive button mechanism with waterproof dustproof function and can give out light which characterized in that includes: the key comprises a key shell (1), a key fixing body (2), a conducting sheet (3), a touch key board (4) and a display film (5);

the conductive sheet (3) is welded on the touch key board (4); the key fixing body (2) is provided with a groove (6), the conducting sheet (3) is embedded into the groove (6) from the bottom surface of the key fixing body (2), and the touch key board (4) is fixedly connected with the key fixing body (2);

the key fixing body (2) is bonded with the key shell (1); be equipped with between button fixed body (2) and button casing (1) and show film (5), and show film (5) and button fixed body (2) bonding, be equipped with the screw on touch keypad (4), the screw will through the screw touch keypad (4), button fixed body (2) rigid coupling.

2. The touch-sensitive key mechanism with waterproof and dustproof functions and capable of emitting light according to claim 1, wherein the key housing (1) is a transparent PC plastic housing, and the inner surface of the key housing (1) is coated with light-transmitting ink.

3. The touch-sensitive key mechanism with waterproof and dustproof functions and capable of emitting light according to claim 1, wherein the key fixing body (2) is an ABS plastic shell.

4. The touch-sensitive key mechanism with waterproof and dustproof functions and capable of emitting light according to claim 1, wherein the conductive sheet (3) is a light guide sheet with a box structure without a bottom surface, and a circular hole (8) is formed in the center of the top surface of the conductive sheet (3).

5. The touch-sensitive key mechanism with waterproof and dustproof functions and capable of emitting light according to claim 4, wherein the conductive sheet (3) is a light guide sheet made of tinplate.

6. The waterproof and dustproof touch-sensitive key mechanism capable of emitting light according to claim 4, wherein there are two conductive sheets (3) symmetrically welded on the touch key board (4) along a center line of the touch key board (4).

7. The touch-sensitive key mechanism with waterproof and dustproof functions and capable of emitting light according to claim 1, wherein the size of the groove (6) of the key fixing body (2) is matched with the size of the conductive sheet (3).

8. The touch-sensitive key mechanism with waterproof and dustproof functions and capable of emitting light according to claim 1, wherein the display film (5) is a transparent PET film, the display film (5) is provided with a light-transmitting mark (7), and the light-transmitting mark (7) corresponds to the groove (6) of the key fixing body and is located at the center of the circular hole (8) of the conductive sheet (3);

The back of the display film (5) is coated with black ink, the light-transmitting mark (7) is a transparent PET film, and the area outside the light-transmitting mark (7) is coated with black ink;

the display film (5) is provided with a positioning hole so as to adjust the position of the display film (5) through the positioning pin, and the display film (5) is bonded with the key fixing body (2) through a double-sided adhesive tape.

9. The touch-sensitive key mechanism with waterproof and dustproof functions and capable of emitting light according to claim 1, wherein a touch conduction sensing module (10) and an LED strip (9) which are connected with each other are arranged on the top surface of the touch key plate (4);

the number of the touch conduction induction modules (10) is the same as that of the conduction pieces (3), and the touch conduction induction modules are arranged right below the circular hole (8) in the center of the conduction pieces (3);

the touch conduction sensing module (10) is connected with a power supply, LED lamp strips (9) are arranged on the periphery of the touch conduction sensing module (10), the power supply is switched on, the LED lamp strips (9) achieve luminous display, the touch conduction sensing module (10) is standby, and a channel is formed after touch induction of the touch conduction sensing module (10) is triggered.

10. The touch-sensitive key mechanism with waterproof and dustproof functions and capable of emitting light according to claim 9, wherein the LED strip (9) is disposed under a circular hole (8) at the center of the conductive sheet (3) to transmit light of the LED strip (9) to the display film (5) through the circular hole (8).