Touch display with screen over-temperature protection

Abstract

The utility model provides a touch display with screen over-temperature protection, and belongs to the technical field of displays. The touch display with the screen over-temperature protection function comprises a touch module and a rear cover, the display screen is in wire connection with the circuit board through a flat cable; heat dissipation holes are formed in the side wall of the rear cover, a heat conduction plate is arranged in the rear cover, the upper surface of the heat conduction plate is attached to the lower surface of the display screen, the lower surface of the heat conduction plate is attached to the upper surface of the circuit board, and heat dissipation grooves are connected to the side edge of the heat conduction plate; when the temperature reaches the lower limit of a preset temperature interval, a signal can be output to give an alarm, when the temperature reaches the upper limit of the preset temperature interval, the normally closed contact of the temperature control switch is switched off to realize power failure and protect equipment, and when the temperature is reduced, the normally closed contact of the temperature control switch is switched on again to realize normal and stable operation of the equipment and realize a self-recovery effect. The over-temperature protection effect is achieved, the service life of equipment is prolonged, and the maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of display, in particular, to a touch display with screen over-temperature protection. BACKGROUND

[0002] At present, the touch screen display can make the user realize the operation of the host computer by lightly touching the icon or text on the computer display screen with fingers, so as to make the human-computer interaction more direct. It is mainly applied to public hall information inquiry, leadership office, electronic game, song ordering and menu ordering, multimedia teaching, ticket / train ticket pre-sale, etc. The product is mainly divided into three types of capacitive touch screen, resistive touch screen and surface acoustic wave touch screen; the touch display module includes a display assembly and a backlight assembly.

[0003] Although the touch display belongs to low-consumption electronic products, the display and the circuit board will still generate certain heat during the operation of the touch display module, so it is necessary to cool the display module during operation to ensure that the display module can operate stably for a long time.

[0004] The prior art in the above has the following defects: in some special industrial applications, due to the high temperature of the display application equipment and workshop environment itself, if the heat dissipation efficiency of the display module itself cannot keep up, it is easy to cause the temperature of the touch display to be too high, which affects the stable operation of the touch display, and long-time operation in a high-temperature environment is more likely to damage the touch display, greatly shortening the service life of the touch display. Content of the utility model

[0005] In order to make up for the above shortcomings, the present application provides a touch display with screen over-temperature protection, which aims to improve the problem that the heat dissipation efficiency of the display module itself is not enough, which affects the stable operation.

[0006] The embodiment of the present application provides a touch display with screen over-temperature protection, which comprises a touch module and a rear cover.

[0007] The touch module comprises a display screen and a circuit board, and the display screen is connected with the circuit board by a wire.

[0008] The display screen is fixed on the upper end of the rear cover, the rear cover is provided with a heat dissipation hole in the side wall, a heat conduction plate is arranged in the rear cover, the upper surface of the heat conduction plate is attached to the lower surface of the display screen, the lower surface of the heat conduction plate is attached to the upper surface of the circuit board, the side edge of the heat conduction plate is connected with a heat dissipation groove, the heat dissipation groove is arranged at the heat dissipation hole, and a temperature sensor and a temperature control switch are arranged in the rear cover.

[0009] In a preferred mode of the utility model, the heat dissipation groove section is U-shaped heat dissipation plate body, the heat dissipation groove outer surface is pasted with the heat conduction plate, the heat dissipation groove inner surface is oppositely arranged with the heat dissipation hole, and the heat dissipation groove inner surface is fixed with the convex heat dissipation fin.

[0010] In a preferred mode of the utility model, the heat dissipation fan is installed at the heat dissipation hole, the heat dissipation fan is covered in the heat dissipation groove, the warning light is embedded in the rear cover side edge, the controller is installed on the circuit board, and the controller is preset with temperature interval value.

[0011] In a preferred mode of the utility model, the temperature interval value is 40 DEG C to 70 DEG C, when the temperature sensor monitors that the temperature reaches 40 DEG C, the temperature sensor outputs signal to the controller, and the controller controls the warning light to light up after receiving the signal.

[0012] In a preferred mode of the utility model, the warning light is color-changing light, and the light-emitting color includes white light, orange light, yellow light and red light, and the color of the warning light changes with the temperature monitored by the temperature sensor.

[0013] In a preferred mode of the utility model, when the temperature monitored by the temperature sensor is 40 DEG C to 49 DEG C, the warning light presents white light, when the temperature monitored by the temperature sensor is 50 DEG C to 59 DEG C, the warning light presents orange light, when the temperature monitored by the temperature sensor is 60 DEG C to 69 DEG C, the warning light presents yellow light, and when the temperature monitored by the temperature sensor is above 70 DEG C, the warning light presents red light.

[0014] In a preferred mode of the utility model, the heat conduction plate includes heat conduction silica gel plate and heat pipe, the heat pipe is embedded in the heat conduction silica gel plate, and one end of the heat pipe extends to the outside of the heat conduction silica gel plate and penetrates the heat dissipation groove.

[0015] In a preferred mode of the utility model, one end of the heat pipe is fixed with the semiconductor refrigeration sheet, the semiconductor refrigeration sheet is arranged in the heat dissipation groove, the heat dissipation fan is oppositely arranged with the heating surface of the semiconductor refrigeration sheet, and one end of the heat pipe is pasted on the refrigeration surface of the semiconductor refrigeration sheet.

[0016] In a preferred mode of the utility model, two heat dissipation grooves are arranged on the two sides of the rear cover, the heat dissipation hole is correspondingly arranged with the heat dissipation groove, a plurality of heat pipes are arranged at equal intervals, and the semiconductor refrigeration sheet is correspondingly arranged with the heat pipe.

[0017] In a preferred mode of the utility model, the rear cover upper end is fixed with a frame, the display screen edge is clamped in the frame, and the display screen and the frame are sealingly connected.

[0018] Beneficial effects: the application provides a touch display with screen over-temperature protection, the heat-conducting plate is clamped between the display screen and the circuit board, effectively absorbs the heat generated by the display screen and the circuit board, and through the design of the fully-covered heat-conducting plate, the display screen and the circuit board are evenly heated, avoiding the situation that local high temperature leads to burning of components, the heat-conducting plate conducts heat to the heat dissipation groove, and the heat is diffused outside through the heat dissipation holes, the temperature sensor is installed in the rear cover to monitor the heat accumulated in the touch module packaged on the rear cover, when the temperature reaches the lower limit of the preset temperature interval, a signal can be output for alarm, when the temperature reaches the upper limit of the preset temperature interval, the normally closed contact of the temperature control switch is disconnected to realize power-off, the equipment is protected, when the temperature decreases, the normally closed contact of the temperature control switch is connected again to realize normal and stable operation of the equipment, self-recovery effect is realized, over-temperature protection effect is achieved, the service life of the equipment is prolonged, and maintenance cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the application, and should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.

[0020] Figure 1 is a three-dimensional structure schematic diagram of the touch display with screen over-temperature protection provided by the embodiments of the application;

[0021] Figure 2 is an exploded view provided by the embodiments of the application;

[0022] Figure 3 is a cutaway three-dimensional structure schematic diagram of the heat-conducting plate provided by the embodiments of the application;

[0023] Figure 4 is a three-dimensional structure schematic diagram of the heat dissipation groove provided by the embodiments of the application.

[0024] In the figure: 100, touch module; 110, display screen; 130, circuit board; 300, rear cover; 301, heat dissipation hole; 303, warning light; 305, heat dissipation fan; 310, heat-conducting plate; 311, heat-conducting silica gel plate; 313, heat pipe; 315, semiconductor refrigeration piece; 330, heat dissipation groove; 350, frame. DETAILED DESCRIPTION

[0025] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be direct connection, also can indirectly connect through the intermediate medium, can be the communication of two elements or the interaction of two elements.For the ordinary skilled person in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0026] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them.Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature.The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0027] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

[0028] Please refer to Figures 1-4 The utility model provides a touch display with screen over-temperature protection, including touch module 100 and back cover 300;

[0029] The touch module 100 includes a display screen 110 and a circuit board 130, the display screen 110 is connected with the circuit board 130 through the wire of wire arrangement;

[0030] The display screen 110 is fixed on the upper end of the back cover 300, the sidewall of back cover 300 is equipped with heat dissipation hole 301, the back cover 300 is provided with heat conduction plate 310, the upper surface of heat conduction plate 310 is pasted with the lower surface of display screen 110, the lower surface of heat conduction plate 310 is pasted with the upper surface of circuit board 130, the side of heat conduction plate 310 is connected with heat dissipation groove 330, heat dissipation groove 330 is laid in heat dissipation hole 301, temperature sensor and temperature control switch are installed in back cover 300.

[0031] In the specific embodiment of the utility model, the cross section of the heat dissipation groove 330 is a U-shaped heat dissipation plate body, the outer surface of the heat dissipation groove 330 is pasted with the heat conduction plate 310, the inner surface of the heat dissipation groove 330 is oppositely arranged with the heat dissipation hole 301, and the inner surface of the heat dissipation groove 330 is fixed with the protruding heat dissipation fin.

[0032] In the specific embodiment of the utility model, the heat dissipation hole 301 is provided with a heat dissipation fan 305, the heat dissipation fan 305 is covered in the heat dissipation groove 330, the rear cover 300 side edge is embedded with warning light 303, the circuit board 130 is provided with controller, the controller is preset with temperature interval value.

[0033] In the specific embodiment of the utility model, the temperature interval value is 40 DEG C to 70 DEG C, when the temperature sensor monitors that the temperature reaches 40 DEG C, the temperature sensor outputs signal to the controller, the controller receives signal and controls warning light 303 to light up.

[0034] In the specific embodiment of the utility model, the warning light 303 is color-changing light, and the light-emitting color includes white light, orange light, yellow light and red light, and the color of the warning light 303 changes with the temperature monitored by the temperature sensor.

[0035] In the specific embodiment of the utility model, when the temperature monitored by the temperature sensor is 40 DEG C to 49 DEG C, the warning light 303 presents white light, when the temperature monitored by the temperature sensor is 50 DEG C to 59 DEG C, the warning light 303 presents orange light, when the temperature monitored by the temperature sensor is 60 DEG C to 69 DEG C, the warning light 303 presents yellow light, and when the temperature monitored by the temperature sensor is more than 70 DEG C, the warning light 303 presents red light.

[0036] In the specific embodiment of the utility model, the heat conduction plate 310 includes heat conduction silica gel plate 311 and heat pipe 313, the heat pipe 313 is embedded in the heat conduction silica gel plate 311, and one end of the heat pipe 313 extends to the outside of the heat conduction silica gel plate 311 and penetrates the heat dissipation groove 330.

[0037] In the specific embodiment of the utility model, one end of the heat pipe 313 is fixed with a semiconductor refrigeration sheet 315, the semiconductor refrigeration sheet 315 is arranged in the heat dissipation groove 330, the heat dissipation fan 305 and the heating surface of the semiconductor refrigeration sheet 315 are oppositely arranged, and one end of the heat pipe 313 is attached to the refrigeration surface of the semiconductor refrigeration sheet 315.

[0038] Please refer to Figures 2-3 In the specific embodiment of the utility model, the heat dissipation groove 330 is provided with two, two heat dissipation grooves 330 are symmetrically arranged on the two sides of the rear cover 300, the heat dissipation hole 301 and the heat dissipation groove 330 are one-to-one correspondingly arranged, the heat pipe 313 is provided with a plurality of equidistantly, and the semiconductor refrigeration sheet 315 and the heat pipe 313 are one-to-one correspondingly arranged.

[0039] In the specific embodiment of the utility model, the frame 350 is fixed on the upper port of the rear cover 300, the display screen 110 is clamped in the frame 350, and the display screen 110 is sealingly connected with the frame 350.

[0040] The working principle of the touch display with screen over-temperature protection is as follows: when in use, the heat-conducting plate 310 is clamped between the display screen 110 and the circuit board 130, effectively absorbing the heat generated by the display screen 110 and the circuit board 130, and through the design of the fully-covered heat-conducting plate 310, the display screen 110 and the circuit board 130 are evenly heated, avoiding the situation that local high temperature leads to burning of components, and the heat-conducting plate 310 conducts the heat to the heat dissipation groove 330, and the heat is diffused outside through the heat dissipation holes 301, a temperature sensor is installed in the rear cover 300 for monitoring the heat accumulated in the touch module 100 encapsulated on the rear cover 300, when the temperature reaches the lower limit of the preset temperature interval, a signal can be output for alarm, when the temperature reaches the upper limit of the preset temperature interval, the normally closed contact of the temperature control switch is disconnected to realize power-off, protecting the equipment, when the temperature decreases, the normally closed contact of the temperature control switch is connected again to realize normal and stable operation of the equipment, realizing self-recovery effect, achieving over-temperature protection effect, prolonging the service life of the equipment, and reducing maintenance cost.

[0041] The above is only an embodiment of the present application and does not limit the protection scope of the present application, and for those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

Claims

1. A touch display with screen over-temperature protection, characterized in that, include A touch module (100) includes a display screen (110) and a circuit board (130), wherein the display screen (110) is wired to the circuit board (130) via a ribbon cable; The back cover (300) has the display screen (110) fixed on the upper end of the back cover (300). The back cover (300) has heat dissipation holes (301) on its side wall. A heat-conducting plate (310) is provided inside the back cover (300). The upper surface of the heat-conducting plate (310) is attached to the lower surface of the display screen (110). The lower surface of the heat-conducting plate (310) is attached to the upper surface of the circuit board (130). A heat dissipation groove (330) is connected to the side of the heat-conducting plate (310). The heat dissipation groove (330) is laid at the heat dissipation hole (301). A temperature sensor and a temperature control switch are installed inside the back cover (300).

2. A touch display with screen over-temperature protection according to claim 1, characterized in that, The heat dissipation groove (330) has a U-shaped heat dissipation plate in cross section. The outer surface of the heat dissipation groove (330) is in contact with the heat conduction plate (310). The inner surface of the heat dissipation groove (330) is opposite to the heat dissipation hole (301). The inner surface of the heat dissipation groove (330) is fixed with protruding heat dissipation fins.

3. A touch display with screen over-temperature protection according to claim 1, characterized in that, A cooling fan (305) is installed at the heat dissipation hole (301), and the cooling fan (305) is covered inside the heat dissipation slot (330). A warning light (303) is embedded on the side of the rear cover (300). A controller is installed on the circuit board (130), and the controller has a preset temperature range value.

4. A touch display with screen over-temperature protection according to claim 3, characterized in that, The temperature range is 40°C to 70°C. When the temperature sensor detects that the temperature reaches 40°C, the temperature sensor outputs a signal to the controller. After receiving the signal, the controller controls the warning light (303) to light up.

5. A touch display with screen over-temperature protection according to claim 4, characterized in that, The warning light (303) is a color-changing light, and its light emission colors include white light, orange light, yellow light and red light. The color of the warning light (303) changes with the temperature change monitored by the temperature sensor.

6. A touch display with screen over-temperature protection according to claim 5, characterized in that, When the temperature detected by the temperature sensor is between 40°C and 49°C, the warning light (303) emits white light; when the temperature detected by the temperature sensor is between 50°C and 59°C, the warning light (303) emits orange light; when the temperature detected by the temperature sensor is between 60°C and 69°C, the warning light (303) emits yellow light; and when the temperature detected by the temperature sensor is above 70°C, the warning light (303) emits red light.

7. A touch display with screen over-temperature protection according to claim 3, characterized in that, The heat-conducting plate (310) includes a thermally conductive silicone plate (311) and a heat pipe (313). The heat pipe (313) is embedded in the thermally conductive silicone plate (311), and one end of the heat pipe (313) extends to the outside of the thermally conductive silicone plate (311) and passes through the heat dissipation groove (330).

8. A touch display with screen over-temperature protection according to claim 7, characterized in that, One end of the heat pipe (313) is fixed with a semiconductor cooling chip (315), the semiconductor cooling chip (315) is disposed in the heat dissipation groove (330), the heat dissipation fan (305) is disposed opposite to the heating surface of the semiconductor cooling chip (315), and one end of the heat pipe (313) is attached to the cooling surface of the semiconductor cooling chip (315).

9. A touch display with screen over-temperature protection according to claim 8, characterized in that, Two heat dissipation slots (330) are provided, and the two heat dissipation slots (330) are symmetrically arranged on both sides of the rear cover (300). The heat dissipation holes (301) are arranged one-to-one with the heat dissipation slots (330). Multiple heat pipes (313) are arranged at equal intervals. The semiconductor cooling chip (315) is arranged one-to-one with the heat pipe (313).

10. A touch display with screen over-temperature protection according to claim 1, characterized in that, A frame (350) is fixed to the upper port of the back cover (300), and the edge of the display screen (110) is snapped into the frame (350). The display screen (110) and the frame (350) are sealed together at the joint.

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