High-temperature early warning device for LCD (liquid crystal display) backlight panel

Abstract

The utility model relates to the field of LCD (Liquid Crystal Display) backlight sources, in particular to a high-temperature early warning device for an LCD backlight source plate. Comprising a light guide plate, two arc-shaped grooves are symmetrically formed in one side wall of the light guide plate, two fixing plates are symmetrically arranged at the ends, close to the arc-shaped grooves, of the light guide plate, and a heat conduction plate is vertically embedded in the center of the side wall, away from the light guide plate, of each fixing plate; a group of mounting plates are mounted at the edge of one side wall, close to the heat conducting plate, of each group of fixing plates, a group of display screens are embedded in the centers of the tops of the side walls, away from the fixing plates, of each group of mounting plates, and a group of alarm devices are mounted in the centers of the bottoms of the side walls, close to the display screens, of each group of mounting plates; and a group of temperature sensors are mounted on one side wall, close to the light guide plate, of each group of fixing plates. According to the embodiment of the invention, a high-temperature early warning effect is achieved, so that a worker can take measures in time to avoid accidents, and the safety is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of LCD backlight sources, and particularly relates to a high-temperature early warning device for an LCD backlight source panel. Background Art

[0002] The backlight is an optical component that provides a backlight source in LCD display products. Since the liquid crystal glass itself does not have the property of emitting light, a light source, namely the backlight, is added behind the liquid crystal glass as needed. Its application range covers communications, medical treatment, beauty, instrumentation, industrial equipment, bank terminals, vehicle-mounted equipment, office automation, electronic toys and consumer products.

[0003] After searching, in the prior art, Chinese patent publication number: CN209265144U, authorization publication date: 2019-02-01, discloses an LCD backlight source, including a light guide plate, fixing holes are opened at the four corners of the bottom of the light guide plate, arc grooves are opened on both sides of the bottom of the light guide plate, and a support plate is arranged at the bottom of the light guide plate near the lower position of the arc groove, first card grooves are opened on both sides of the top of the support plate, and second card grooves matching the first card grooves are opened at the bottom of the light guide plate located on both sides of the arc groove. A spring is arranged between the second card groove and the first card groove, and the cross-sectional shape of the spring is wavy. When the user applies too much pressure to the light guide plate, the spring will bend downward and shrink, thereby buffering the light guide plate so as to protect the light guide plate. An LED light bar is installed at the middle position of the top of the support plate, and a reflector is arranged at the top of the support plate near the outer position of the LED light bar, and a shield is arranged at the top of the support plate near the outer position of the reflector. The above embodiment solves the problem that it is difficult to buffer the conduit plate and light guide plate on the conventional device, which causes the conduit plate and light guide plate to be easily damaged by force.

[0004] However, the device still has the following defects: the above embodiment does not have a warning effect when the equipment is in use. If no warning is given when the temperature of the equipment is too high, the staff will not be able to take timely measures to avoid accidents, thereby reducing safety. Utility Model Content

[0005] In view of the above problems, the utility model provides a high temperature warning device for an LCD backlight source panel, comprising a light guide plate, two groups of arc grooves are symmetrically opened on one side wall of the light guide plate, two groups of fixing plates are symmetrically arranged at one end of the light guide plate close to the arc groove, a group of heat conducting plates are vertically embedded in the center of a side wall of each group of fixing plates away from the light guide plate, a group of mounting plates are installed at the edge of a side wall of each group of fixing plates close to the heat conducting plate, a group of display screens are embedded in the top center of a side wall of each group of mounting plates away from the fixing plates, and a group of alarm devices are installed at the bottom center of a side wall of each group of mounting plates close to the display screen;

[0006] A group of shields are installed on one side wall of each group of fixed plates close to the light guide plate, a group of LED light strips are vertically installed at the center of one side wall of each group of fixed plates close to the light guide plate, each group of LED light strips are located in the shield, a group of temperature sensors are installed on one side wall of each group of fixed plates close to the light guide plate, each group of temperature sensors are located in the shield, and two groups of mounting holes are symmetrically opened at the edge of one side wall of the light guide plate.

[0007] Furthermore, an overvoltage protector is installed at the center of a side wall of the light guide plate close to the arc groove, and the overvoltage protector is located between the two groups of arc grooves.

[0008] Furthermore, each group of the mounting plates is arranged in a rectangular structure, and the two groups of the blocking covers are respectively located in two groups of arc grooves.

[0009] Furthermore, each group of the display screens is electrically connected to each group of temperature sensors, each group of the alarm devices is electrically connected to each group of display screens, and each group of the heat conduction plates, each group of the alarm devices and each group of LED light strips are electrically connected to the overvoltage protector.

[0010] Furthermore, two groups of clamping grooves are symmetrically formed at an edge of a side wall of each group of the fixing plates close to the light guide plate, and a group of clamping blocks are movably clamped in each group of the clamping grooves.

[0011] Furthermore, a group of cavities is opened on a side wall of each group of the clamping blocks close to the light guide plate, and a plurality of groups of springs are evenly spaced in each group of the cavities. Each group of the springs is installed on an inner wall of the side of the clamping block away from the light guide plate.

[0012] Furthermore, a group of moving blocks is arranged in each group of the cavities, and each group of the moving blocks is arranged in a rectangular structure, and the outer walls of the moving blocks are slidably fitted on the inner walls of the clamping blocks.

[0013] Furthermore, the other end of each group of the moving blocks passes through the cavity and is installed on a side wall of the light guide plate, and the other ends of several groups of the springs are installed at an end of the moving block away from the light guide plate.

[0014] The beneficial effects of the utility model are:

[0015] 1. The temperature inside the shield is sensed by the temperature sensor and the information is transmitted to the display screen. The temperature is displayed on the display screen. When it reaches a certain height, the alarm device is activated and the alarm sounds until the temperature inside the shield drops to a certain degree. The alarm stops, which has the effect of high temperature warning, so that the staff can take timely measures to avoid accidents and improve safety.

[0016] 2. Move the fixed plate vertically to drive the two sets of card blocks to slide in the two sets of card slots. After pulling them out, the shield, LED light bar and temperature sensor can be inspected. After the inspection is completed, the two sets of card blocks are connected in the two sets of card slots, and the fixed plate is moved vertically. The two sets of card blocks slide in the two sets of card slots. The installation is completed and can be quickly disassembled and installed, which is convenient for the staff to inspect and repair them.

[0017] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of a high temperature warning device according to an embodiment of the utility model is shown;

[0020] Figure 2 A bottom view schematic diagram of a high temperature warning device according to an embodiment of the utility model is shown;

[0021] Figure 3 A schematic diagram of the mounting plate structure according to an embodiment of the utility model is shown;

[0022] Figure 4 A schematic diagram of a clamping structure according to an embodiment of the utility model is shown.

[0023] In the figure: 1. light guide plate; 2. arc groove; 3. overvoltage protector; 4. fixing plate; 5. heat conduction plate; 6. mounting plate; 7. display screen; 8. alarm device; 9. shield; 10. LED light strip; 11. temperature sensor; 12. snap-in groove; 13. snap-in block; 14. cavity; 15. spring; 16. moving block; 17. mounting hole. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The present utility model provides a high temperature warning device for LCD backlight source panel, for example, Figure 1 , Figure 2 and Figure 3 As shown, it includes a light guide plate 1, and two groups of arc grooves 2 are symmetrically opened on one side wall of the light guide plate 1. An overvoltage protector 3 is installed at the center of one side wall of the light guide plate 1 close to the arc groove 2, and the overvoltage protector 3 is located between the two groups of arc grooves 2. Two groups of fixing plates 4 are symmetrically arranged at one end of the light guide plate 1 close to the arc groove 2. A group of heat conducting plates 5 are vertically embedded at the center of one side wall of each group of fixing plates 4 away from the light guide plate 1. A group of mounting plates 6 are installed at the edge of one side wall of each group of fixing plates 4 close to the heat conducting plate 5. Each group of mounting plates 6 is arranged in a rectangular structure, and each group of mounting plates 6 is away from the fixing plate 4. A group of display screens 7 are embedded in the center of the top of the side walls, a group of alarm devices 8 are installed at the center of the bottom of one side wall of each group of mounting plates 6 close to the display screen 7, a group of shields 9 are installed on one side wall of each group of fixing plates 4 close to the light guide plate 1, and the two groups of shields 9 are respectively located in two groups of arc grooves 2, a group of LED light strips 10 are vertically installed at the center of one side wall of each group of fixing plates 4 close to the light guide plate 1, and each group of LED light strips 10 are located in the shields 9, a group of temperature sensors 11 are installed on one side wall of each group of fixing plates 4 close to the light guide plate 1, and each group of temperature sensors 11 are located in the shields 9.

[0026] Each group of the display screens 7 is electrically connected to each group of temperature sensors 11 , each group of the alarm devices 8 is electrically connected to each group of display screens 7 , and each group of the heat conducting plates 5 , each group of the alarm devices 8 and each group of the LED light strips 10 are electrically connected to the overvoltage protector 3 .

[0027] For example, Figure 1 , Figure 2 and Figure 4As shown, each group of the fixed plates 4 are symmetrically provided with two groups of snap-in grooves 12 at the edge of one side wall close to the light guide plate 1, and a group of snap-in blocks 13 are movably snap-in in each group of the snap-in grooves 12. A group of cavities 14 are provided on a side wall of each group of the snap-in blocks 13 close to the light guide plate 1, and a number of groups of springs 15 are evenly spaced in each group of the cavities 14. Each group of the springs 15 is installed on the inner wall of the side of the snap-in block 13 away from the light guide plate 1. A group of moving blocks 16 are provided in each group of the cavities 14. Each group of the moving blocks 16 is arranged in a rectangular structure, and the outer walls of the moving blocks 16 are slidably fitted on the inner wall of the snap-in block 13. The other end of each group of the moving blocks 16 passes through the cavity 14 and is installed on a side wall of the light guide plate 1. The other ends of the several groups of springs 15 are installed on the end of the moving block 16 away from the light guide plate 1. Two groups of mounting holes 17 are symmetrically provided at the edge of one side wall of the light guide plate 1.

[0028] Working principle: When the device is in use, the temperature inside the shield 9 is sensed by the temperature sensor 11, and the information is transmitted to the display screen 7, where the temperature is displayed. When the temperature reaches a certain height, the alarm device 8 is activated and the alarm sounds until the temperature inside the shield 9 drops to a certain degree.

[0029] The vertically movable fixed plate 4 drives the two groups of clamping blocks 13 to slide in the two groups of clamping grooves 12. After pulling them out, the baffle 9, LED light strip 10 and temperature sensor 11 can be inspected. After the inspection is completed, the two groups of clamping blocks 13 are clamped in the two groups of clamping grooves 12, and the fixed plate 4 is vertically moved. The two groups of clamping blocks 13 slide in the two groups of clamping grooves 12, and the installation is completed.

[0030] The temperature inside the shield 9 is sensed by the temperature sensor 11, and the information is transmitted to the display screen 7, where the temperature is displayed. When the temperature reaches a certain temperature, the alarm device 8 is activated and the alarm sounds until the temperature inside the shield 9 drops to a certain temperature. This provides a high temperature warning effect, so that the staff can take timely measures to avoid accidents and improve safety.

[0031] The vertically movable fixed plate 4 drives the two groups of clamping blocks 13 to slide in the two groups of clamping grooves 12. After pulling them out, the baffle 9, LED light strip 10 and temperature sensor 11 can be inspected. After the inspection is completed, the two groups of clamping blocks 13 are clamped in the two groups of clamping grooves 12, and the fixed plate 4 is vertically moved. The two groups of clamping blocks 13 slide in the two groups of clamping grooves 12. The installation is completed and can be quickly disassembled and installed, which is convenient for the staff to inspect it.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high temperature warning device for an LCD backlight source panel, comprising a light guide plate (1), characterized in that: Two groups of arc grooves (2) are symmetrically provided on one side wall of the light guide plate (1); two groups of fixing plates (4) are symmetrically provided at one end of the light guide plate (1) close to the arc groove (2); a group of heat conducting plates (5) are vertically embedded in the center of a side wall of each group of fixing plates (4) away from the light guide plate (1); a group of mounting plates (6) are installed at the edge of a side wall of each group of fixing plates (4) close to the heat conducting plates (5); a group of display screens (7) are embedded in the center of the top of a side wall of each group of mounting plates (6) away from the fixing plates (4); and a group of alarm devices (8) are installed at the center of the bottom of a side wall of each group of mounting plates (6) close to the display screen (7); A set of shields (9) are installed on a side wall of each set of the fixing plates (4) close to the light guide plate (1); a set of LED light strips (10) are vertically installed at the center of a side wall of each set of the fixing plates (4) close to the light guide plate (1); each set of the LED light strips (10) are located in the shield (9); a set of temperature sensors (11) are installed on a side wall of each set of the fixing plates (4) close to the light guide plate (1); each set of the temperature sensors (11) are located in the shield (9); and two sets of mounting holes (17) are symmetrically opened at the edge of a side wall of the light guide plate (1).

2. The LCD backlight panel high temperature warning device according to claim 1, characterized in that: An overvoltage protector (3) is installed at the center of a side wall of the light guide plate (1) close to the arc-shaped grooves (2), and the overvoltage protector (3) is located between the two groups of arc-shaped grooves (2).

3. The LCD backlight panel high temperature warning device according to claim 1, characterized in that: Each group of the mounting plates (6) is arranged in a rectangular structure, and the two groups of the blocking covers (9) are respectively located in the two groups of arc-shaped grooves (2).

4. The LCD backlight panel high temperature warning device according to claim 1, characterized in that: Each group of the display screens (7) is electrically connected to each group of temperature sensors (11), each group of the alarm devices (8) is electrically connected to each group of display screens (7), and each group of the heat conducting plates (5), each group of the alarm devices (8) and each group of LED light strips (10) are electrically connected to the overvoltage protector (3).

5. The LCD backlight panel high temperature warning device according to claim 1, characterized in that: Each set of the fixing plates (4) is symmetrically provided with two sets of clamping grooves (12) at the edge of a side wall close to the light guide plate (1), and each set of the clamping grooves (12) is movably clamped with a set of clamping blocks (13).

6. The LCD backlight panel high temperature warning device according to claim 5, characterized in that: A group of cavities (14) is provided on a side wall of each group of the clamping blocks (13) close to the light guide plate (1), a plurality of groups of springs (15) are arranged at equal intervals in each group of the cavities (14), and each group of the springs (15) is installed on an inner wall of a side of the clamping block (13) away from the light guide plate (1).

7. The LCD backlight panel high temperature warning device according to claim 6, characterized in that: A group of moving blocks (16) is arranged in each group of the cavities (14); each group of the moving blocks (16) is arranged in a rectangular structure; and the outer walls of the moving blocks (16) are slidably fitted on the inner walls of the clamping blocks (13).

8. The LCD backlight panel high temperature warning device according to claim 7, characterized in that: The other end of each group of the moving blocks (16) passes through the cavity (14) and is then mounted on a side wall of the light guide plate (1), and the other ends of several groups of the springs (15) are all mounted on an end of the moving block (16) away from the light guide plate (1).

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