CN213754472U

CN213754472U - Membrane switch with proximity switch function

Info

Publication number: CN213754472U
Application number: CN202022865740.5U
Authority: CN
Inventors: 张方英; 黄远常; 温庆钦; 张剑英; 宋来毅
Original assignee: Guangzhou Kay-Ee Membrane Keyboard Switch Corp
Current assignee: Guangzhou Kay-Ee Membrane Keyboard Switch Corp
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2021-07-20
Anticipated expiration: 2030-12-01

Abstract

A membrane switch with a proximity switch function comprises a switch main body, an induction module, a control module and a display light source; the switch main body is used for sending a control instruction to equipment, and the display light source is arranged on the switch main body; the sensing module is connected with the control module and used for detecting the proximity of the human body to the membrane switch, and if the human body is close to the membrane switch, a human body proximity signal is output to the control module; and the control module is connected with the display light source on the membrane switch and the switch main body, and starts the display light source on the membrane switch or/and awakens the switch main body in a dormant state according to the human body approach signal. The utility model discloses can realize showing that light source and switch main part are automatic to be switched to operating condition's automatic control process from the dormancy state, so when reducing the energy consumption, can light button suggestion light automatically when human body is close membrane switch, guarantee that the user also can see each button on the membrane switch clearly in the dark surrounds, improve the use of user in the dark surrounds and experience.

Description

Membrane switch with proximity switch function

Technical Field

The utility model relates to a membrane switch field, concretely relates to take membrane switch of proximity switch function.

Background

The membrane switch is an operation system integrating a key function, an indicating element and an instrument panel, and is widely applied to the fields of electronic communication and electronic measurement instruments, industrial control, medical equipment, automobile industry, intelligent toys, household appliances and the like. The existing luminous membrane switch is usually provided with a display light source on a circuit board, after a key is pressed down, the circuit board is connected, and the display light source emits light to enable the membrane switch to emit light, so that the membrane switch can be conveniently used in a place with dark light.

However, the user's vision is obstructed in the dark environment, and the display light source can be restarted only by the manual control of the user, so when the user operates in the dark environment, the problem that the user cannot quickly and accurately press the required function key often occurs, or the phenomenon that other function keys on the membrane switch are touched by mistake occurs, and the use experience of the user is seriously influenced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a take membrane switch of proximity switch function.

The utility model provides a technical scheme that its technical problem adopted is:

a membrane switch with a proximity switch function is characterized in that: the switch comprises a switch main body, an induction module, a control module and a display light source;

the switch main body is used for sending a control instruction to equipment, and the display light source is arranged on the switch main body;

the sensing module is connected with the control module and used for detecting the proximity of the human body to the membrane switch, and if the human body is close to the membrane switch, a human body proximity signal is output to the control module;

and the control module is connected with the display light source on the membrane switch and the switch main body, and starts the display light source on the membrane switch or/and awakens the switch main body in a dormant state according to the human body approach signal.

The utility model discloses in, the response module is a proximity switch that can respond to human proximity membrane switch.

In the present invention, the sensing module is disposed at any one end of the switch main body or disposed along a contour edge of the switch main body.

The utility model discloses in, the switch main part is including panel layer, face key layer, light shield layer, leaded light layer, key piece layer, the circuit layer that from top to bottom sets gradually, response module, control module all with circuit layer electricity is connected, be equipped with a plurality ofly on the circuit layer the display light source.

The utility model discloses in, be equipped with the key piece that the drive circuit layer sent control command on the key piece layer, be equipped with on the circuit layer be used for with key piece complex contact.

The utility model discloses in, be provided with the figure structure on the panel layer, set up the printing opacity mouth that the light that will show the light source and send shows on the figure structure on the light shield layer.

The utility model has the advantages that: the utility model discloses be provided with response module and control module, when response module response detected someone proximity membrane switch, automatically to the human proximity signal of control module output, and control module starts the display light source on the membrane switch or awakens up the switch main part that is in dormant state according to human proximity signal, realize that display light source and switch main part can be automatic to switch to operating condition's automatic control process from dormant state, so when reducing the energy consumption, can light the button suggestion light automatically when human proximity membrane switch, each button on the membrane switch that sees that assurance user also can be clear in the dark surrounds, improve the use experience of user in the dark surrounds.

Drawings

The invention will be further explained with reference to the drawings and the embodiments below:

FIG. 1 is a first exploded view of the present embodiment;

FIG. 2 is a second exploded view of the present embodiment;

fig. 3 is a control schematic diagram of the present embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.

Referring to fig. 1 to 3, a membrane switch with proximity switch function includes: the switch comprises a switch main body 10, a sensing module 20, a control module 30 and a display light source 40; the switch main body 10 is used for sending a control instruction to the equipment to enable the equipment to perform corresponding function actions according to the control instruction, and the display light source 40 is arranged on the switch main body 10; the sensing module 20 is a proximity switch capable of sensing and detecting a proximity of a human body to the membrane switch, and the sensing module 20 is connected with the control module 30, and when a human body approaches the membrane switch, the sensing module 20 outputs a human body proximity signal to the control module 30; the control module 30 can be a single chip microcomputer or other control chips capable of realizing the same function, the control module 30 is connected with the display light source 40 and the switch main body 10 on the membrane switch, the display light source 40 on the membrane switch is started or/and the switch main body 10 in a dormant state is awakened according to a human body approach signal, an automatic control process that the display light source 40 and the switch main body 10 can be automatically switched from the dormant state to a working state is achieved, and the use requirements of users are met.

Preferably, the sensing module 20 is disposed on any one end of the switch main body 10, and in the present embodiment, the sensing module 20 is disposed on the lower end of the switch main body 10 for convenient arrangement. Of course, without being limited to the above structure, the sensing module 20 may also be disposed along the contour edge of the switch main body 10, which may improve the accuracy of sensing and detecting the human body by the sensing module 20.

Preferably, switch main part 10 is including piling up panel layer 1, face key layer 2, light shield layer 3, leaded light layer 4, key piece layer 5, the circuit layer 6 that the bonding set up in proper order from top to bottom, induction module 20, control module 30 all with circuit layer 6 electricity is connected, be equipped with a plurality of membrane switch that make on circuit layer 6 and have display light source 40 of light display effect, display light source 40 is the LED lamp to display light source 40, induction module 20, control module 30, circuit layer 6, electricity are connected in an organic wholely through above-mentioned structure, and realize the control purpose.

Preferably, the key sheet layer 5 is provided with a key sheet 51 for driving the circuit layer 6 to send a control instruction, the circuit layer 6 is provided with a contact 61 for matching with the key sheet 51, the panel layer 1 is provided with a key corresponding to the key sheet 51, and a user presses the key to drive the key sheet 51 to contact with the contact 61 in a matching manner, so that one circuit on the circuit layer 6 is conducted to form the control instruction, and the device performs an action with a corresponding function.

In the above structure, the panel layer 1 is made of a transparent material to facilitate light display; the surface key layer 2 is composed of optical cement, the optical cement has the advantages of being colorless and transparent, the light transmittance is more than 90%, and the bonding strength is good, so that the surface plate layer 1 and the shading layer 3 can be stably connected, and the light display effect is guaranteed; the shading layer 3 is made of black foam rubber and can play a role in shading light; the light guide layer 4 is made of an acrylic plate, light emitted by the light source 40 can be uniformly dispersed and displayed, the light guide effect of the membrane switch is guaranteed, the key sheet layer 5 is made of transparent 3M double-sided adhesive tape, the light guide layer 4 and the circuit layer 6 can be bonded into a whole, and the key sheet 51 is arranged on the key sheet layer; the wiring layer 6 is composed of a base material and a printed circuit printed on the base material, and the circuit in the printed circuit is conducted through the key sheet 51.

Preferably, the panel layer 1 is provided with a graphic structure 11, and the graphic structure 11 includes any one or more combinations of patterns, characters and anti-counterfeiting marks, so as to form different display effects on the membrane switch. In addition, the light-shielding layer 3 is provided with a light-transmitting opening 31 for displaying the light emitted from the display light source 40 on the graphic structure 11, so that different display effects can be provided on the film switch, and the user experience of the user can be improved.

The above description is only the preferred embodiment of the present invention, and the technical solutions of the objects of the present invention are all within the protection scope of the present invention as long as the objects are achieved by the substantially same means.

Claims

1. A membrane switch with a proximity switch function is characterized in that: the switch comprises a switch main body (10), an induction module (20), a control module (30) and a display light source (40);

the switch main body (10) is used for sending a control instruction to equipment, and the display light source (40) is arranged on the switch main body (10);

the sensing module (20) is connected with the control module (30) and is used for detecting the human body approaching membrane switch, and if the human body approaches the membrane switch, a human body approaching signal is output to the control module (30);

and the control module (30) is connected with the display light source (40) on the membrane switch and the switch main body (10), and starts the display light source (40) on the membrane switch or/and awakens the switch main body (10) in a dormant state according to the human body approach signal.

2. The membrane switch with proximity switch function of claim 1, wherein: the sensing module (20) is a proximity switch capable of sensing the proximity of a human body to the membrane switch.

3. The membrane switch with proximity switch function according to claim 1 or 2, wherein: the sensing module (20) is arranged on any end of the switch main body (10) or along the contour edge of the switch main body (10).

4. The membrane switch with proximity switch function of claim 1, wherein: switch main part (10) are including panel layer (1), face key layer (2), light shield layer (3), leaded light layer (4), key piece layer (5), circuit layer (6) that from top to bottom set gradually, response module (20), control module (30) all with circuit layer (6) electricity is connected, be equipped with a plurality of on circuit layer (6) show light source (40).

5. The membrane switch with proximity switch function of claim 4, wherein: the key sheet layer (5) is provided with a key sheet (51) for driving the circuit layer (6) to send out a control instruction, and the circuit layer (6) is provided with a contact (61) for being matched with the key sheet (51).

6. The membrane switch with proximity switch function of claim 4, wherein: the panel layer (1) is provided with a graphic structure (11), and the shading layer (3) is provided with a light-transmitting opening (31) for displaying light emitted by the display light source (40) on the graphic structure (11).