CN213228623U

CN213228623U - Touch device

Info

Publication number: CN213228623U
Application number: CN202021896749.6U
Authority: CN
Inventors: 张峥; 於明飞; 李陵; 王千兴; 原野
Original assignee: Beijing Hollysys Co Ltd
Current assignee: Beijing Hollysys Co Ltd
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-05-18
Anticipated expiration: 2030-09-02

Abstract

The utility model discloses a touch device, it includes: the front frame is provided with a display window; the touch screen is arranged on the front frame and completely covers the display window; the rear cover covers the front frame and accommodates the touch screen; a first sealing member interposed between the front frame and the rear cover and having elasticity; and a first connecting member for connecting the front frame and the rear cover so that the front frame and the rear cover sandwich the first sealing member. Liquid is difficult to get into in the back lid from the clearance between front bezel and the back lid and makes the touch-sensitive screen take place the short circuit, has promoted touch device's waterproof performance.

Description

Touch device

Technical Field

The utility model relates to a waterproof technology, more specifically relates to a touch device.

Background

The train control screen is generally a human-computer interaction device adopting a dmi (digital Machine interface) technology, and has components such as a display screen, a key, a loudspeaker and the like, and is used for realizing information interaction between a driver and a vehicle-mounted device, informing the driver of various information of the train and the state of the vehicle-mounted device through information such as sound, images and the like, and prompting the driver to execute corresponding operations.

The current train control screen does not have a waterproof function, potential safety hazards easily appear in train operation, for example, the train control screen is caused by artificial accidental factors to water, so that the internal circuit structure of the train control screen is short-circuited and fails, and electric leakage and fire accidents can be caused.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a touch device, it includes:

the front frame is provided with a display window;

the touch screen is arranged on the front frame and completely covers the display window;

the rear cover covers the front frame and accommodates the touch screen;

a first sealing member interposed between the front frame and the rear cover and having elasticity; and

and the first connecting piece is used for connecting the front frame and the rear cover so that the front frame and the rear cover clamp the first sealing piece.

The embodiment of the utility model provides an in, take place deformation and block up the clearance between preceding frame and the back lid completely after first sealing member is by preceding frame and back lid clamp, liquid is difficult to in the lid after the clearance between preceding frame and the back lid gets into and makes the touch-sensitive screen take place the short circuit to touch device's waterproof performance has been promoted.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the embodiments of the present invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention and not to limit the embodiments of the invention.

Fig. 1 is a disassembled schematic view of a touch device in an embodiment of the present invention;

fig. 2 is a disassembled schematic view of a touch screen in an embodiment of the present invention;

fig. 3 is a schematic view of a rear cover, a second sealing member and a heat dissipating plate according to an embodiment of the present invention;

fig. 4 is a disassembled schematic view of the speaker assembly according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

As shown in fig. 1 and 2, the touch device 1 of the present embodiment includes a front frame 11, a touch screen 12, a rear cover 13, a first sealing member 15, and a first connecting member 10. The front frame 11 may be of a generally flat plate configuration or of a generally square frame configuration. The middle of the front frame 11 is provided with a display window 111 penetrating the front frame 11. The display window 111 may be rectangular.

As shown in fig. 2, the touch screen 12 includes a touch panel 121, a display panel 122, and a control circuit 123. The touch panel 121 is made of a transparent material and can transmit light. The touch panel 121 may be a resistive touch panel or a capacitive touch panel. The touch panel 121 is used for receiving a touch signal. The display panel 122 may be a liquid crystal display panel, and the display panel 122 may display colors and patterns. The touch panel 121 is covered on the display panel 122, and the color and pattern displayed on the display panel 122 can penetrate through the touch panel 121. The control circuit 123 is disposed on a side of the display panel 122 away from the touch panel 121, and the control circuit 123 electrically connects the display panel 122 and the touch panel 121 through an electric wire. The control circuit 123 may include one or more circuit boards. The touch screen 12 is provided on the front frame 11. The area of the touch screen 12 is larger than the area of the display window 111 on the front frame 11, and the touch screen 12 completely covers the display window 111. The display window 111 faces the display area of the touch screen 12. In the present embodiment, the touch panel 121 is adhered to the front frame 11 by a sealant, and a seal is formed between the touch screen 12 and the front frame 11, so that liquid cannot pass through the display window 111 of the front frame 11.

As shown in fig. 3, the rear cover 13 includes a bottom plate 131 and side rims 132. The bottom plate 131 has a substantially flat plate shape. The bottom plate 131 and the front frame 11 are parallel to each other. The side frames 132 extend from the outer edge of the bottom plate 131 toward the front frame 11. The side frame 132 has a substantially cylindrical structure. The walls of the side frame 132 are perpendicular to the bottom plate 131. The bottom plate 131 and the side frames 132 enclose an accommodating space. The rear cover 13 covers the front frame 11 from a side of the front frame 11 close to the touch screen 12, and allows the touch screen 12 to be located in the accommodating space.

The first sealing member 15 is of an annular structure and is disposed between the side frame 132 of the rear cover 13 and the front frame 11. First seal 15 is aligned with and covers the top end of side frame 132. The first seal 15 is sandwiched by the rear cover 13 and the front frame 11. The first sealing member 15 is an elastic member, and may be made of, for example, silicone or rubber. The first seal 15 is used to close the gap between the rear cover 13 and the front frame 11.

The first connecting member 10 connects the front frame 11 and the rear cover 13. The first connecting member 10 may be a screw or a stud. The first connecting member 10 is used to apply a preload force to clamp the front frame 11 and the rear cover 13 against the first sealing member 15.

The first sealing member 15 is clamped by the front frame 11 and the rear cover 13 and then deforms to completely block the gap between the front frame 11 and the rear cover 13, so that liquid is difficult to enter the rear cover 13 from the gap between the front frame 11 and the rear cover 13 to cause the touch screen 12 to be short-circuited, and the waterproof performance of the touch device 1 is improved.

Further, as shown in fig. 3, the touch device 1 further includes a heat dissipation plate 14 and a second sealing member 17. The heat dissipation plate 14 is disposed inside the rear cover 13 between the touch screen 12 and the bottom plate 131 of the rear cover 13. The heat sink 14 may be a control circuit 123 abutting against the touch screen 12, and the heat sink 14 is used for dissipating heat from the touch screen 12. The bottom plate 131 is provided with a heat radiation window 133, and the heat radiation window 133 penetrates the bottom plate 131. The heat dissipation window 133 may be disposed at the middle of the bottom plate 131. The heat dissipation window 133 can expose a portion of the surface of the heat dissipation plate 14. The heat sink 14 absorbs heat from the touch screen 12 and dissipates the heat to the environment through the surfaces exposed to the heat dissipation window 133, thereby cooling the touch screen 12.

The second seal member 17 has elasticity. The second seal 17 is made of foam, preferably Ethylene Vinyl Acetate (EVA) foam. The second seal 17 is of annular configuration. The second sealing member 17 is located between the heat dissipation plate 14 and the bottom plate 131, the second sealing member 17 surrounds the heat dissipation window 133, and the heat dissipation plate 14 and the bottom plate 131 sandwich the second sealing member 17.

The second sealing member 17 can seal the gap between the heat dissipation plate 14 and the bottom plate 131, so that liquid is difficult to enter the rear cover 13 from the heat dissipation window 133, and the waterproof performance of the touch device 1 is further improved.

In an exemplary embodiment, the surface of the heat dissipation plate 14 is further provided with a plurality of heat dissipation ridges 142. The heat dissipation ridges 142 protrude into the heat dissipation window 133 and pass through the heat dissipation window 133. The heat dissipation ridges 142 are bar-shaped. The extending directions of the plurality of heat dissipation ridges 142 are parallel to each other.

The heat dissipating ridges 142 increase the contact area with air, thereby increasing the heat dissipating speed of the heat dissipating plate 14.

In an exemplary embodiment, a portion of the heat dissipation plate 14 abutting against the second sealing member 17 is provided with a groove 141. The recess 141 opens towards the second seal 17. In the present embodiment, the edge of the heat dissipation plate 14 abuts against the second sealing member 17, and the groove 141 is provided at the edge of the heat dissipation plate 14. The extending direction of the groove 141 is parallel to the edge of the heat dissipation window 133 adjacent thereto. The plurality of grooves 141 may be provided, and the plurality of grooves 141 are distributed on the outer edge of the heat dissipation plate 14.

The second sealing member 17 deforms under the pressure applied by the heat dissipation plate 14 and the bottom plate 131, and a part of the second sealing member 17 sinks into the groove 141, so that the second sealing member 17 and the heat dissipation plate 14 form a sealing structure similar to an engagement structure, and liquid is more difficult to pass through a gap between the heat dissipation plate 14 and the bottom plate 131, thereby further improving the waterproof performance of the touch device 1.

In an exemplary embodiment, as shown in fig. 2 and 4, the front frame 11 is further provided with a sound outlet area 112, and a plurality of sound outlet holes 113 are provided in the sound outlet area 112. The sound outlet 113 is a through hole and penetrates the front frame 11.

The touch device 1 further includes a speaker component 16. The speaker assembly 16 is disposed on a side of the sound emitting area 112 close to the rear cover 13 and is accommodated in the rear cover 13. Speaker assembly 16 includes a filter 164, a seal 162, a waterproof speaker 161, and a second connector 163. The sealing ring 162 may be a rubber ring. The sealing ring 162 is provided between the waterproof speaker 161 and the front frame 11, and the sealing ring 162 surrounds the sound emitting area 112 and is clamped by the waterproof speaker 161 and the front frame 11. The second connector 163 connects the front frame 11 and the waterproof speaker 161. The second connector 163 may be provided in plural, and the plural second connectors 163 are respectively provided around the waterproof speaker 161. Since the waterproof speaker 161 faces the sound exit area 112, sound emitted from the waterproof speaker 161 can be transmitted through the sound exit hole 113 of the sound exit area 112. The filter 164 is located between the waterproof speaker 161 and the sound outlet 113, and is surrounded by the sealing ring 162. The filter 164 prevents dust from entering the waterproof speaker 161. In one example, the speaker assemblies 16 and the sound emitting areas 112 are provided in plural numbers, and the speaker assemblies 16 are provided in one-to-one correspondence with the sound emitting areas 112. The touch device 1 is provided with a plurality of speaker components 16 for providing stereo sound effect.

The sealing ring 162 can fill up the gap between the waterproof speaker 161 and the front frame 11, so as to prevent liquid from penetrating through the gap between the waterproof speaker 161 and the front frame 11 and entering the rear cover 13 after passing through the sound outlet 113, thereby further improving the waterproof performance of the touch device 1.

In an exemplary embodiment, the sound emitting area 112 is recessed toward the surface of the rear cover 13 away from the rear cover 13 to form a positioning groove 114. The filter 164 and the sealing ring 162 are received in the positioning groove 114. In the present embodiment, the sealing ring 162 has a rectangular ring structure, the filter 164 has a rectangular structure, and the positioning groove 114 has a rectangular shape.

The sealing ring 162 is accommodated in the positioning groove 114, the outer peripheral surface of the sealing ring 162 abuts against the inner peripheral wall of the positioning groove 114, and when the sealing ring 162 is clamped by the front frame 11 and the waterproof speaker 161, a seal can be formed between the outer peripheral surface of the sealing ring 162 and the inner peripheral wall of the positioning groove 114, so that the waterproof performance of the touch device 1 is further improved.

In an exemplary embodiment, the first connecting member 10 is provided in plurality, and the plurality of first connecting members 10 are distributed at the outer edge of the front frame 11. The first connecting member 10 connects the outer edge of the front frame 11 with the edge of the bottom plate 131. The first connection member 10 also penetrates the edge of the heat sink. Thus, the first connecting member 10 can firmly connect the front frame 11, the heat sink, and the bottom plate 131 together.

In an exemplary embodiment, as shown in fig. 2, the front frame 11 is further provided with a USB interface 19 and a nameplate 18. The USB interface 19 may be used to interact with other devices or to provide power. The tag 18 can be used to record information such as the model, brand, etc. of the product.

In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "mouth" word structure "and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the structure indicated has a specific orientation, is constructed and operated in a specific orientation, and thus, cannot be construed as limiting the present invention.

In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "directly connected," "indirectly connected," "fixedly connected," "mounted," and "assembled" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; the terms "mounted," "connected," and "fixedly connected" may be directly connected or indirectly connected through intervening media, or may be connected through two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Although the embodiments of the present invention have been described above, the description is only for the convenience of understanding the present invention, and the present invention is not limited thereto. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A touch device, comprising:

the front frame is provided with a display window;

the rear cover covers the front frame and accommodates the touch screen;

2. The touch device of claim 1, wherein:

the rear cover comprises a bottom plate and side frames extending to the front frame along the outer edge of the bottom plate;

an annular structure in which the first seal member is aligned with the top end of the side frame.

3. The touch device of claim 2, wherein:

the bottom plate is provided with a heat dissipation window;

the touch device further comprises a heat dissipation plate arranged between the touch screen and the bottom plate and a second sealing element arranged between the heat dissipation plate and the bottom plate;

the second sealing piece is annular and has elasticity, the second sealing piece surrounds the periphery of the heat dissipation window, and the heat dissipation plate and the bottom plate clamp the second sealing piece.

4. The touch device of claim 3, wherein:

and a groove is formed in the part of the heat dissipation plate, which is abutted to the second sealing element.

5. The touch device of claim 3, wherein:

the first sealing element is made of silica gel, and the second sealing element is made of foam.

6. The touch device according to any one of claims 1 to 5, wherein:

the touch device comprises a front frame, a touch control device and a sound output device, wherein the front frame is provided with a sound output area, the sound output area is provided with a plurality of sound output holes penetrating through the front frame, and the touch device further comprises a loudspeaker component;

the loudspeaker assembly comprises a waterproof loudspeaker arranged on one side of the sound-emitting area, which faces the rear cover, a sealing ring clamped between the waterproof loudspeaker and the front frame, and a second connecting piece for connecting the waterproof loudspeaker and the front frame;

the sealing ring has elasticity and surrounds the periphery of the sound outlet area.

7. The touch device of claim 6, wherein:

the sound outlet area is recessed towards the surface of the rear cover in the direction away from the rear cover to form a positioning groove for accommodating the sealing ring, and the inner side wall of the positioning groove is abutted to the outer peripheral surface of the sealing ring.

8. The touch device of claim 6, wherein:

the speaker assembly further includes a filter disposed between the waterproof speaker and the sound-emitting area.

9. The touch device according to any one of claims 1 to 5, wherein:

the touch screen comprises a display panel and a touch panel covered on the display panel;

the outer edge of the touch panel is hermetically connected with the inner edge of the front frame.

10. The touch device of claim 2, wherein:

the first connecting pieces are arranged in a plurality and connect the outer edge of the front frame with the bottom plate.