CN214122930U

CN214122930U - Waterproof capacitive touch screen

Info

Publication number: CN214122930U
Application number: CN202120227786.6U
Authority: CN
Inventors: 邓翔
Original assignee: Shenzhen Shengshi Industry Co ltd
Current assignee: Shenzhen Shengshi Industry Co ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-09-03
Anticipated expiration: 2031-01-27

Abstract

The utility model provides a waterproof capacitive touch screen, including electric capacity screen body and watertight fittings, the inside of electric capacity screen body is provided with watertight fittings, the outer wall swing joint of electric capacity screen body has the shell, watertight fittings includes the waterproof layer, the waterproof layer is in the outside fixed connection of electric capacity screen body, the outside fixedly connected with glass protective layer of waterproof layer. The utility model discloses, through setting up watertight fittings, when the device gets into steam, waterproof intraformational carbon particulate matter absorbs steam, the water switch-on positive negative pole in electrode passing through heating resistor silk and the carbon particulate matter, the power supply of waterproof circuit board, whole device begins work, heat the carbon particulate matter, evaporate moisture wherein, current electric capacity touch-sensitive screen ubiquitous problem is exactly can't realize waterproof function, moisture, inside steam permeates the casing from handing-over department of touch-sensitive screen and casing, cause the corrosion of equipment internal component, the short circuit, and then influence the availability factor and the life of equipment.

Description

Waterproof capacitive touch screen

Technical Field

The utility model relates to a capacitive touch screen technical field especially relates to a waterproof capacitive touch screen.

Background

The capacitive touch screen technology works by using current induction of a human body. The capacitive touch screen is a four-layer composite glass screen, the inner surface and the interlayer of the glass screen are respectively coated with one layer of ITO, the outermost layer is a thin-layer silica glass protective layer, the interlayer ITO coating serves as a working surface, four electrodes are led out from four corners, and the inner layer of ITO serves as a shielding layer to guarantee a good working environment. When a finger touches the metal layer, a coupling capacitance is formed between the user and the touch screen surface due to the electric field of the human body, and for high frequency currents, the capacitance is a direct conductor, so that the finger draws a small current from the contact point. The currents respectively flow out of the electrodes on the four corners of the touch screen, the currents flowing through the four electrodes are in direct proportion to the distances from the fingers to the four corners, and the controller obtains the position of a touch point through accurate calculation of the proportion of the four currents.

When using the capacitive touch screen under humid environment, the ubiquitous problem of traditional capacitive touch screen is exactly can't realize waterproof function, inside moisture, steam penetrated the casing from the handing-over department of touch-sensitive screen and casing, caused equipment internal component corrosion, short circuit, and then influenced the availability factor and the life of equipment, consequently, we propose a waterproof capacitive touch screen.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the waterproof formula electric capacity touch-sensitive screen that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a waterproof formula capacitive touch screen, includes capacitive screen body and watertight fittings, the inside of capacitive screen body is provided with watertight fittings, the outer wall swing joint of capacitive screen body has the shell, watertight fittings includes the waterproof layer, the waterproof layer is in the outside fixed connection of capacitive screen body, the outside fixedly connected with glass protective layer of waterproof layer.

Preferably, sliding grooves are formed in two sides of the shell in the horizontal direction, and limiting grooves are formed in inner walls of two sides of the shell in the vertical direction.

Preferably, carbon particles are arranged inside the waterproof layer, heating resistance wires are fixedly connected inside the waterproof layer, electrodes are arranged on the left side and the right side of the heating resistance wires, and a waterproof circuit board is arranged on one side, close to the capacitive screen body, of the waterproof layer.

Preferably, a sealing protection device is arranged above the capacitive screen body.

Preferably, the sealing protection device comprises a sealing groove, the sealing groove is arranged in a crack between the glass protection layer and the capacitive screen body, a sealing ring is fixedly arranged inside the sealing groove, a connecting piece is fixedly connected to the upper surface of the sealing ring, a compression spring is fixedly arranged at the top of the connecting piece, an ejection piece is fixedly arranged above the compression spring, and the ejection piece is movably arranged in a limiting groove.

Preferably, the inside sliding connection of spout has the slider, the slider is far from one side fixedly connected with protection screen of spout.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. in the utility model, by arranging the waterproof device, when the device enters water vapor, the carbon particles in the waterproof layer absorb the water vapor, the carbon particles are irregularly arranged between the heating resistance wires, the absorbed water vapor contacts the heating resistance wires, the electrodes are connected with the positive electrode and the negative electrode through the heating resistance wires and the water in the carbon particles, the waterproof circuit board supplies power, the whole device starts to work, the carbon particles are heated, the water in the carbon particles is evaporated, after the water is evaporated, the electrode is disconnected and stops heating, the glass protective layer also plays a role of isolating water vapor from the outside, the existing capacitive touch screen generally has the problems that the waterproof function cannot be realized, moisture and steam permeate into the shell from the joint of the touch screen and the shell to cause the corrosion and short circuit of the internal elements of the equipment, therefore, the service efficiency and the service life of the equipment are influenced, and the application of the device avoids the problems and effectively improves the practicability of the equipment.

2. The utility model discloses in, through setting up sealed protection device, when using the electric capacity touch screen under the moist environment of air, the joint seam between glass protective layer and the electric capacity screen body sets up a seal groove installation sealing washer, a large amount of steam of separation gets into inside, slide the slider in the inside downstream of spout when necessary, the surface of cover electric capacity screen body is down pulled down to the protection screen, it meets the condensation to become water droplet infiltration inside to avoid the outer wall of steam contact glass protective layer, damage internal circuit component and electric capacity screen, current electric capacity screen water repellent is mainly directly to bond electric capacity screen and casing, be not convenient for overhaul of the equipments, cause electric capacity screen damage and influence the use easily, the device's application avoids above-mentioned problem and effectively improve equipment's practicality.

Drawings

Fig. 1 is a schematic perspective view of a waterproof capacitive touch screen according to the present invention;

fig. 2 is a schematic view of a sealing protection device of a waterproof capacitive touch screen according to the present invention;

fig. 3 is a schematic view of a waterproof device of a waterproof capacitive touch screen according to the present invention;

fig. 4 is a schematic diagram of a part of the sealing protection device of the waterproof capacitive touch screen according to the present invention.

Illustration of the drawings: 1. a capacitive screen body; 2. a seal protection device; 3. a waterproof device; 4. a housing; 5. a chute; 6. a limiting groove; 21. a seal ring; 22. a sealing groove; 23. a protective screen; 24. a slider; 25. a compression spring; 26. ejecting the part; 27. a connecting member; 31. a waterproof layer; 32. heating resistance wires; 33. carbon particulates; 34. an electrode; 35. a waterproof circuit board; 36. and a glass protective layer.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1-4, the utility model provides a waterproof capacitive touch screen, including capacitive screen body 1, watertight fittings 3 and sealed protection device 2.

The specific arrangement and function of the waterproofing means 3 and the seal protection means 2 will be described in detail below.

As shown in fig. 1 and 3, the waterproof device 3 includes a waterproof layer 31, the waterproof layer 31 is fixedly connected to the outside of the capacitive screen body 1, the outside of the waterproof layer 31 is fixedly connected to a glass protective layer 36, carbon particles 33 are disposed inside the waterproof layer 31, a heating resistor 32 is fixedly connected to the inside of the waterproof layer 31, electrodes 34 are disposed on the left and right sides of the heating resistor 32, and a waterproof circuit board 35 is disposed on one side of the waterproof layer 31 close to the capacitive screen body 1.

The whole waterproof device 3 achieves the effects that when the device enters water vapor, the carbon particles 33 in the waterproof layer 31 absorb the water vapor, the carbon particles 33 are irregularly distributed between the heating resistance wires 32, the absorbed water vapor contacts the heating resistance wires 32, the electrodes 34 are connected with the positive electrode and the negative electrode through the water in the heating resistance wires 32 and the carbon particles 33, the waterproof circuit board 35 supplies power, the whole device starts to work, the carbon particles 33 are heated, the water in the carbon particles is evaporated, after the water is evaporated, the electrode 34 is disconnected and stops heating, the glass protective layer 36 also plays a role of isolating water vapor from the outside, the existing capacitive touch screen generally has the problems that the waterproof function cannot be realized, moisture and steam permeate into the shell from the joint of the touch screen and the shell, so that the internal elements of the equipment are corroded and short-circuited, therefore, the service efficiency and the service life of the equipment are influenced, and the application of the device avoids the problems and effectively improves the practicability of the equipment.

As shown in fig. 2 and 4, a sealing protection device 2 is arranged above the capacitive screen body 1, the sealing protection device 2 includes a sealing groove 22, the sealing groove 22 is arranged in a crack between the glass protection layer 36 and the capacitive screen body 1, a sealing ring 21 is fixedly arranged inside the sealing groove 22, a connecting piece 27 is fixedly connected to the upper surface of the sealing ring 21, a compression spring 25 is fixedly arranged at the top of the connecting piece 27, an ejection piece 26 is fixedly arranged above the compression spring 25, the ejection piece 26 is movably arranged in the limiting groove 6, a sliding block 24 is slidably connected inside the sliding groove 5, and the sliding block 24 is far away from the protective screen 23 fixedly connected to one side of the sliding groove 5.

The effect that its whole sealed protection device 2 reaches does, when using the electric capacity touch screen under the humid environment of air, the joint line between glass protective layer 36 and the electric capacity screen body 1 sets up a seal groove 22 installation sealing washer 21, inside the entering of a large amount of steam of separation, slide block 24 is at the inside downstream of spout 5 when necessary, the surface of electric capacity screen body 1 is covered to the pull-down of protection screen 23, it meets the condensation to form the water droplet infiltration inside to avoid the outer wall of steam contact glass protective layer 36, damage internal circuit component and electric capacity screen, current electric capacity screen water repellent mainly bonds electric capacity screen directness and casing, be not convenient for equipment maintenance, cause the electric capacity screen to damage easily and influence the use, the device's application avoids above-mentioned problem and effectively improve equipment's practicality.

Embodiment 2 is different from embodiment 1 in that, as shown in fig. 1, a waterproof device 3 is disposed inside a capacitive screen body 1, an outer shell 4 is movably connected to an outer wall of the capacitive screen body 1, sliding grooves 5 are disposed on two sides of the outer shell 4 in a horizontal direction, and limiting grooves 6 are disposed on two inner walls of the outer shell 4 in a vertical direction.

The whole working principle is that by arranging the waterproof device 3, when the device enters water vapor, the carbon particles 33 in the waterproof layer 31 absorb the water vapor, the carbon particles 33 are irregularly arranged between the heating resistance wires 32, the absorbed water vapor contacts the heating resistance wires 32, the electrodes 34 are connected with the positive electrode and the negative electrode through the water in the heating resistance wires 32 and the carbon particles 33, the waterproof circuit board 35 supplies power, the whole device starts to work, the carbon particles 33 are heated, the water in the carbon particles is evaporated, after the water is evaporated, the electrodes 34 are disconnected to stop heating, the glass protective layer 36 also plays a role of isolating the water vapor from the outside, the existing capacitive touch screen has the common problem that the waterproof function cannot be realized, the water and the steam permeate into the inside of the shell from the joint of the touch screen and the shell, the corrosion and the short circuit of the internal elements of the equipment are caused, and the service efficiency and the service life of the equipment are further influenced, the utility model discloses a practical of above-mentioned problem and effective improve equipment is avoided in the device's application, through setting up sealed protection device 2, when using the electric capacity touch screen under the humid environment of air, the joint seam between glass protective layer 36 and the electric capacity screen body 1 sets up a seal groove 22 installation sealing washer 21, a large amount of steam of separation gets into inside, slide slider 24 when necessary in the inside downstream of spout 5, the surface that covers electric capacity screen body 1 is drawn down to protection screen 23, it meets the condensation to form water droplet infiltration inside to avoid steam contact glass protective layer 36's outer wall, damage internal circuit component and electric capacity screen, current electric capacity screen water repellent mainly is that directly bonds electric capacity screen and casing, be not convenient for the equipment maintenance, cause the electric capacity screen to damage easily and influence the use, the device's application avoids above-mentioned problem and effectively improve equipment's practicality.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a waterproof formula capacitive touch screen, includes capacitive touch screen body (1) and watertight fittings (3), its characterized in that: a waterproof device (3) is arranged inside the capacitive screen body (1), and the outer wall of the capacitive screen body (1) is movably connected with a shell (4);

the waterproof device (3) comprises a waterproof layer (31), the waterproof layer (31) is fixedly connected to the outer side of the capacitive screen body (1), and a glass protective layer (36) is fixedly connected to the outer side of the waterproof layer (31).

2. The waterproof capacitive touch screen of claim 1, wherein: the two sides of the horizontal direction of the shell (4) are provided with sliding grooves (5), and the inner walls of the two sides of the vertical direction of the shell (4) are provided with limiting grooves (6).

3. The waterproof capacitive touch screen of claim 1, wherein: the carbon particle-containing capacitive screen is characterized in that carbon particles (33) are arranged inside the waterproof layer (31), heating resistance wires (32) are fixedly connected inside the waterproof layer (31), electrodes (34) are arranged on the left side and the right side of the heating resistance wires (32), and a waterproof circuit board (35) is arranged on one side, close to the capacitive screen body (1), of the waterproof layer (31).

4. The waterproof capacitive touch screen of claim 3, wherein: a sealing protection device (2) is arranged above the capacitive screen body (1).

5. The waterproof capacitive touch screen of claim 4, wherein: sealed protection device (2) are including seal groove (22), seal groove (22) set up in the crack between glass protective layer (36) and capacitive screen body (1), the inside fixed mounting of seal groove (22) has sealing washer (21), the last fixed surface of sealing washer (21) is connected with connecting piece (27), the top fixed mounting of connecting piece (27) has compression spring (25), the top fixed mounting of compression spring (25) has ejecting (26), ejecting (26) in spacing groove (6) interior movable mounting.

6. The waterproof capacitive touch screen of claim 2, wherein: the inside sliding connection of spout (5) has slider (24), one side fixedly connected with protection screen (23) that spout (5) are kept away from in slider (24).