Display screen heat dissipation performance testing device

Abstract

The utility model provides a display screen heat dissipation performance testing device, which relates to the technical field of surveying and mapping and comprises a main testing box body, an inner lifting support and a display screen fixing frame, the inner lifting support is arranged on the inner side of the main testing box body, the display screen fixing frame is arranged on the front portion of the inner lifting support, and a lower fan is arranged at the bottom of the inner side of the main testing box body. An electric heating row is fixed above the lower fan in the main test box body, inner slide rails are fixed on two sides in the main test box body, and an upper box cover is rotatably arranged at the top of the main test box body through a hinge. The personnel pulls the display screen fixing frame to continue to move upwards to the outer side of the main test box body to replace the display screen, the situation that the internal space of the main test box body is limited is avoided, and the problems that the internal space of the test box body is limited, and disassembly and assembly of the display screen are blocked by the interior of the test box body, so that disassembly is troublesome are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of surveying and mapping equipment, in particular to a display screen heat dissipation performance testing device. Background Art

[0002] Display screens such as LED screens will generate heat when in use, especially outdoor displays. The temperature outdoors is higher and outdoor displays are more susceptible to high temperatures. High temperatures of the display screens can lead to a shortened lifespan and increased power consumption, so the heat dissipation performance of the display screen is very important.

[0003] The existing display heat dissipation test is to place the display in a test box and then heat the test box to simulate the heat dissipation performance of the display in a high temperature environment. The internal space of the test box is limited, and the disassembly and installation of the display is blocked by the inside of the test box, which makes disassembly more troublesome. In order to test the heat dissipation performance of the display and the wall at different distances, the display needs to be adjusted to a fixed position multiple times, further increasing the test waiting time. Summary of the invention

[0004] The disclosed embodiments relate to a device for testing the heat dissipation performance of a display screen. The display screen moves and adjusts with the distance between a display screen fixing frame and the inner side of a main test box, so as to simulate and test the heat dissipation performance of the display screen at different distances from the wall, eliminating the need for the display screen to be installed and fixed back and forth and adjusted in position. When the upper box cover is opened, the display screen fixing frame and the display screen are pulled up synchronously, so that a person can manually pull the display screen fixing frame and continue to move it up to the outer side of the main test box to replace the display screen, thus avoiding the situation where the space inside the main test box is limited, and making it more convenient to replace the display screen.

[0005] According to a first aspect of the present disclosure, a display screen heat dissipation performance testing device is provided, which specifically includes: a main test box, an inner lifting bracket and a display screen fixing bracket, wherein the inner side of the main test box is provided with an inner lifting bracket, the front part of the inner lifting bracket is provided with a display screen fixing bracket, a lower fan is provided at the inner bottom of the main test box, an electric heating row is fixed to the main test box above the lower fan, the electric heating row is composed of electric heating metal wire, inner slide rails are fixed to both sides of the inside of the main test box, and an upper box cover is rotated by hinges on the top of the main test box.

[0006] In at least some embodiments, side connecting pins are slidably inserted into both sides of the inner lifting bracket, and the middle part of the side connecting pins and the lower end of the side connecting belt penetrate each other.

[0007] In at least some embodiments, the inner lifting bracket is slidably connected to the inner slide rail, and the upper end of the side connecting pin is rotatably connected to the upper box cover, so that when the upper box cover is opened, the inner lifting bracket, the display screen fixing frame and the display screen are pulled up synchronously.

[0008] In at least some embodiments, side slide groove frames and side connecting blocks are fixed on both sides of the display screen fixing frame, the side slide groove frame of the display screen fixing frame is slidably connected to the left end of the front of the scissors bracket, the scissors bracket is a structure in which two rectangular bars cross each other in the center, the side connecting block of the display screen fixing frame is slidably connected to the right end of the front of the scissors bracket, and the display screen fixing frame array is provided with threaded positioning holes.

[0009] In at least some embodiments, the right rear end of the scissors bracket is slidably connected to a side connecting block, the left rear end of the scissors bracket is slidably connected to a side slide slot frame, the side slide slot frame and the side connecting block at the rear of the scissors bracket are fixedly connected to the inner lifting bracket, the display screen fixing frame is adjusted by horizontal movement of the scissors bracket and the distance between the inner lifting bracket and the inner side of the main test box, and the display screen is adjusted along with the movement of the display screen fixing frame to adjust the distance between the display screen and the inner side of the main test box.

[0010] In at least some embodiments, when the upper box cover is opened upward, the inner lifting bracket and the display screen fixing frame move upward to the outside of the main test box body simultaneously, and a person manually pulls the display screen fixing frame to continue to move upward so that more of it is outside the main test box body.

[0011] In at least some embodiments, the inner lifting bracket and the display screen fixing frame are both located above the electric heating row, and the display screen fixing frame is located inside the main test box, and the main test box heats the interior through the electric heating row.

[0012] The utility model provides a display screen heat dissipation performance testing device, which has the following beneficial effects:

[0013] The display screen moves and adjusts with the display screen fixing frame and the inner spacing of the main test box to simulate and test the heat dissipation performance of the display screen at different distances from the wall, eliminating the need to install and adjust the position of the display screen back and forth, making the test faster.

[0014] When the upper box cover is opened, the display screen fixing frame and the display screen are pulled up synchronously, so that the personnel can manually pull the display screen fixing frame to continue to move up to replace the display screen, thereby avoiding the situation where the internal space of the main test box is limited and the display screen is inconvenient to replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0016] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0017] In the attached picture:

[0018] Figure 1 A schematic diagram showing the overall structure of the present application;

[0019] Figure 2 A schematic structural diagram of a cross section of the main test box of the present application is shown;

[0020] Figure 3 A schematic diagram of the internal lifting bracket structure of the present application is shown;

[0021] Figure 4 A schematic diagram of the scissor bracket structure of the present application is shown;

[0022] Figure 5 A schematic structural diagram of the inner slide rail of the present application is shown;

[0023] Figure 6 A schematic diagram showing the structure of the split state of the present application;

[0024] Reference numerals list

[0025] 1. Main test box; 101. Lower fan; 102. Electric heating row; 103. Inner slide rail; 104. Upper box cover;

[0026] 2. Inner lifting bracket; 201. Side connecting pin; 202. Side connecting belt;

[0027] 3. Display screen fixing bracket; 301. Threaded positioning hole; 302. Scissor bracket; 303. Side slide bracket; 304. Side connecting block. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of 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 described 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.

[0029] Example 1: Please refer to Figures 1 to 6 :

[0030] The utility model proposes a display screen heat dissipation performance test device, comprising: a main test box 1, an inner lifting bracket 2 and a display screen fixing bracket 3, a lower fan 101 is arranged at the inner bottom of the main test box 1, an electric heating row 102 is fixed on the main test box 1 above the lower fan 101, the electric heating row 102 is composed of electric heating metal wires, inner slide rails 103 are fixed on both sides of the main test box 1, an upper box cover 104 is rotated by hinges on the top of the main test box 1, the inner lifting bracket 2 and the display screen fixing bracket 3 are both above the electric heating row 102, the display screen fixing bracket 3 is inside the main test box 1, the main test box 1 heats the interior through the electric heating row 102, and the lower fan 101 blows air toward the electric heating row 102 to let the hot air flow through the display screen above;

[0031] An inner lifting bracket 2 is arranged on the inner side of the main test box body 1, and side connecting pins 201 are slidably inserted on both sides of the inner lifting bracket 2, and the middle part of the side connecting pin 201 and the lower end of the side connecting belt 202 penetrate, the inner lifting bracket 2 and the inner slide rail 103 are slidably connected, and the upper end of the side connecting pin 201 and the upper box cover 104 are rotatably connected, and the side connecting pin 201 of the side connecting belt 202 and the inner lifting bracket 2 are slidably inserted synchronously or the side connecting pin 201 and the inner lifting bracket 2 are disconnected after separation, and the inner lifting bracket 2 is pulled while the upper box cover 104 is opened. The bracket 2, the display screen fixing frame 3 and the display screen move up synchronously, the display screen fixing frame 3 is arranged at the front of the inner lifting bracket 2, the side sliding groove frame 303 and the side connecting block 304 are fixed on both sides of the display screen fixing frame 3, the side sliding groove frame 303 of the display screen fixing frame 3 and the front left end of the scissors bracket 302 are slidably connected, the scissors bracket 302 is a structure of two rectangular bars crossed in the center, the side connecting block 304 of the display screen fixing frame 3 and the front right end of the scissors bracket 302 are slidably connected, and the display screen fixing frame 3 is arranged with an array of threaded positioning holes 301.

[0032] In the present disclosure, Figure 3 , 4 As shown in Figure 5, the right rear end of the scissors bracket 302 is slidably connected with a side connecting block 304, and the left rear end of the scissors bracket 302 is slidably connected with a side sliding groove frame 303. The side sliding groove frame 303 and the side connecting block 304 at the rear of the scissors bracket 302 are fixedly connected to the inner lifting bracket 2. The display screen fixing frame 3 is adjusted by horizontal movement of the scissors bracket 302 and the distance between the inner lifting bracket 2 and the inner side of the main test box 1. The display screen is adjusted along with the movement of the display screen fixing frame 3 and the inner distance of the main test box 1, which is used to simulate the heat dissipation performance of the display screen at different distances from the wall, eliminating the need to install and adjust the position of the display screen back and forth.

[0033] In the present disclosure, Figure 1 , 2As shown, when the upper box cover 104 is opened upward, the inner lifting bracket 2 and the display screen fixing bracket 3 are synchronously moved upward to the outside of the main test box body 1, and the personnel manually pull the display screen fixing bracket 3 to continue to move upward to the outside of the main test box body 1, so as to avoid the main test box body 1 blocking the screen when replacing, and make it easier to replace the display screen.

[0034] Embodiment 2, on the basis of embodiment 1, air outlets are opened at the bottom of the main test box 1 and the upper box cover 104, the lower fan 101 and the electric heating row 102 are started at the same time to make the air flow inside and outside, and the hot air generated by the electric heating row 102 blows on the display screen, simulating the heat dissipation performance of the display screen in an open outdoor environment in summer, and expanding the types of simulated environments.

[0035] The working principle of this embodiment is as follows: the display screen fixing frame 3 moves up to the outside of the main test box 1 along the inner slide rail 103 with the inner lifting bracket 2, avoiding the obstruction of the main test box 1, and facilitating the fixed installation operation of the display screen. The threaded positioning hole 301 is connected to the display screen through screws. After the display screen is fixed, the display screen fixing frame 3 moves down to the main test box 1 with the inner lifting bracket 2, and the upper box cover 104 can be kept open, and the main test box 1 can be ventilated to the outside. The main test box 1 heats the interior through the electric heating row 102, and the lower fan 101 blows air toward the electric heating row 102 to let the hot air flow through the upper display screen, simulating the heat dissipation performance of the internal display screen in a high temperature environment. After the upper box cover 104 is closed, the main test box 1 is sealed to achieve the heat dissipation performance test of the display screen in an extremely high temperature and windless environment;

[0036] It is only necessary to push the display screen fixing frame 3 to move horizontally. The display screen fixing frame 3 moves horizontally to adjust the distance between the inner lifting frame 2 and the inner side of the main test box 1 through the scissor bracket 302. The display screen moves along with the display screen fixing frame 3 to adjust the distance between the display screen and the inner side of the main test box 1, which is used to simulate the heat dissipation performance of the display screen at different distances from the wall, eliminating the need to install and adjust the position of the display screen back and forth, and the display screen test is faster;

[0037] The upper box cover 104 is linked with the inner lifting bracket 2 through the side connecting belt 202, and the side connecting pin 201 of the side connecting belt 202 and the inner lifting bracket 2 slide and insert synchronously, or the side connecting pin 201 and the inner lifting bracket 2 are disconnected after separation, and the upper box cover 104 is opened while pulling the inner lifting bracket 2 and the display screen fixing frame 3 and the display screen to move up synchronously, and the inner lifting bracket 2 is on the upper outer side of the main test box body 1, which is convenient for personnel to manually pull the display screen fixing frame 3 to continue to move up, and more part is on the outside of the main test box body 1, avoiding obstruction of the main test box body 1, making it more convenient to replace the display screen, and avoiding the situation where the internal space of the main test box body 1 is limited and the display screen is inconvenient to replace.

[0038] In this article, there are a few points to note:

[0039] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0040] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0041] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A display screen heat dissipation performance testing device, comprising: A main test box (1), an inner lifting bracket (2) and a display screen fixing bracket (3); characterized in that an inner lifting bracket (2) is arranged on the inner side of the main test box (1), a display screen fixing bracket (3) is arranged on the front of the inner lifting bracket (2), a lower fan (101) is arranged on the inner bottom of the main test box (1), an electric heating row (102) is fixed on the main test box (1) above the lower fan (101), inner slide rails (103) are fixed on both sides of the inside of the main test box (1), and an upper box cover (104) is rotatable on the top hinge of the main test box (1).

2. A display screen heat dissipation performance testing device according to claim 1, characterized in that: Side connection pins (201) are slidably inserted on both sides of the inner lifting bracket (2), and the middle part of the side connection pin (201) and the lower end of the side connection belt (202) penetrate each other.

3. A display screen heat dissipation performance testing device according to claim 2, characterized in that: The inner lifting bracket (2) and the inner slide rail (103) are slidably connected, and the upper end of the side connecting pin (201) and the upper box cover (104) are rotatably connected.

4. A display screen heat dissipation performance testing device according to claim 1, characterized in that: Side sliding groove frames (303) and side connecting blocks (304) are fixed on both sides of the display screen fixing frame (3); the side sliding groove frames (303) of the display screen fixing frame (3) and the front left end of the scissor bracket (302) are slidably connected; the side connecting block (304) of the display screen fixing frame (3) and the front right end of the scissor bracket (302) are slidably connected; and the display screen fixing frame (3) is provided with an array of threaded positioning holes (301).

5. A display screen heat dissipation performance testing device according to claim 4, characterized in that: The rear right end of the scissor bracket (302) is slidably connected to a side connecting block (304), the rear left end of the scissor bracket (302) is slidably connected to a side sliding groove frame (303), and the rear side sliding groove frame (303) and the side connecting block (304) of the scissor bracket (302) are fixedly connected to the inner lifting bracket (2).

6. A display screen heat dissipation performance testing device according to claim 1, characterized in that: When the upper box cover (104) is opened upward, the inner lifting bracket (2) and the display screen fixing bracket (3) are synchronously moved upward to the outside of the main test box body (1).

7. A display screen heat dissipation performance testing device according to claim 1, characterized in that: The inner lifting bracket (2) and the display screen fixing bracket (3) are both located above the electric heating row (102), and the display screen fixing bracket (3) is located inside the main test box (1).

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