Display detection tool for refrigerator display panel

Abstract

The utility model discloses a display detection tool for a refrigerator display panel, and relates to the technical field of refrigerators, the display detection tool comprises a detection box and a power supply, the detection box comprises a box body, the front side and the rear side of the box body are respectively provided with a protruding part, the bottom of the box body is fixedly provided with a non-slip mat, the protruding parts are fixedly provided with tool boxes, a valve body is embedded in the box body, and the valve body is embedded in the box body. The non-slip mat is mounted at the bottom of the box body. When the vacuum pump is started, air in the box body and the valve body can be pumped away, so that the interior of the box body and the interior of the valve body are in a negative pressure state, negative pressure can be rapidly generated in the position, not covered by the display panel, of the valve body, the negative pressure can drive the valve plate to abut against the sealing ring, and the position, at the position, of the valve body is in a closed state; therefore, the box body is in a closed state on the whole, at the moment, the top of the valve body in contact with the display panel forms adsorption force under the action of negative pressure, the display panel is effectively fixed, plug-in detection can be performed on the display panel, and the device is convenient for fixing and detecting display panels of different models.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator technology, specifically a display testing fixture for refrigerator display panels. Background Technology

[0002] Modern refrigerators typically have a display panel on the door to show real-time temperature, operating status, and other intelligent information about the refrigeration or freezing compartments. The display panel, installed on the door, enhances the refrigerator's intelligence. During the refrigerator manufacturing process, the display panel needs to be tested to confirm its proper lighting and to check for issues such as glare, thus ensuring product quality.

[0003] Chinese Patent Publication No. CN220170493U discloses a display testing fixture for a refrigerator display panel. To improve the fixing stability of the refrigerator display panel and prevent damage during testing, a snap-fit ​​part is provided on the fixing plate to support and clamp the refrigerator display panel from the side. A support part is provided on the receiving cavity to support the bottom of the refrigerator display panel and make it firmly attached to the bottom of the snap-fit ​​part, ensuring connection stability. The display status of the refrigerator display panel is displayed through the display window on the fixing plate, completing the display performance testing of the refrigerator display panel, improving the testing efficiency of the refrigerator display panel, and ensuring the display performance and product quality of the refrigerator display panel.

[0004] In the above technical solution, the display board needs to be manually clipped onto the fixing plate by the staff. When plugging the power cord into the display board, the staff still needs to support the display board. The testing process is cumbersome, which is not conducive to assembly line operation. The operation is cumbersome and inefficient.

[0005] Furthermore, the above technical solutions require customization when testing other types of display panels, thus their applicability needs improvement. Therefore, we provide a display testing fixture for refrigerator display panels to solve these problems. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a display testing fixture for refrigerator display panels, which facilitates the fixed testing of display panels of different models.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a display testing fixture for a refrigerator display panel, comprising a testing box and a power supply. The testing box includes a box body with protrusions on both the front and rear sides. An anti-slip pad is fixed to the bottom of the box body, and a tool box is fixed to the protrusions. The valve body is embedded in the box body, and the anti-slip pad is installed at the bottom of the box body to increase friction and prevent the box body from sliding, thereby improving the stability of the box body.

[0008] Furthermore, it also includes a vacuum component, which is installed on the testing chamber. The vacuum component includes a vacuum pump that creates a vacuum environment by drawing in air. The output end of the vacuum pump is connected to a connecting pipe that communicates with the chamber. The vacuum component also includes a control button, which is installed on the protrusion and is used to manually control the start and stop of the vacuum pump.

[0009] Furthermore, it also includes multiple sets of control valves, which are installed on the detection box. Each control valve includes a valve body, a valve plate that is slidably disposed within the valve body, an arc-shaped vent hole on the valve plate, and a sealing ring fixed within the valve body.

[0010] The valve plate and the sealing ring are connected by an elastic component, which includes a compression spring and a fixing ring. The upper end of the compression spring is fixed to the bottom surface of the valve plate, and the lower end of the compression spring is fixed to the upper end of the fixing ring. The fixing ring is fixed in the valve body. The compression spring provides an elastic force to push the valve plate to reset.

[0011] Furthermore, the control valve also includes a guide component, which includes a fixed post and a limiting plate. The fixed post is fixed to the bottom surface of the valve plate and slidably connected to the limiting plate. The limiting plate is fixed in the valve body. A filter plate is provided in the valve body to filter impurities and prevent particulate matter from clogging the valve body. The filter plate is threadedly connected to the valve body and has a cross groove. The filter plate can be disassembled with a screwdriver for cleaning.

[0012] Compared with existing technologies, this display testing fixture for refrigerator display panels has the following features:

[0013] Beneficial effects:

[0014] 1. This utility model involves placing the display panel on the top surface of the housing during testing, then pressing the control button. The vacuum pump is activated, drawing air out of the housing and valve body, creating a negative pressure environment. The valve body not covered by the display panel will quickly generate negative pressure, causing the valve plate to press against the sealing ring, thus sealing the entire housing. The top of the valve body in contact with the display panel forms an adsorption force under the negative pressure, effectively fixing the display panel. Power-on testing can then be performed. This device is convenient for fixing and testing display panels of different models. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a cross-sectional view of the inside of the housing of this utility model;

[0017] Figure 3 This is a cross-sectional view of the valve body of this utility model.

[0018] Figure 4 This is a schematic diagram of the valve plate structure of this utility model.

[0019] In the picture:

[0020] 1. Testing box; 101. Box body; 102. Protrusion; 103. Anti-slip mat; 104. Tool box;

[0021] 2. Vacuum components; 201. Vacuum pump; 202. Connecting pipe; 203. Control button;

[0022] 3. Control valve; 301. Valve body; 302. Valve plate; 303. Sealing ring; 304. Compression spring; 305. Retaining ring; 306. Retaining column; 307. Limiting plate; 308. Filter plate; 309. Cross groove;

[0023] 4. Power supply. Detailed Implementation

[0024] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0025] As described in the background section, the display panel requires manual clamping by staff onto a fixed plate. When connecting the power cord to the display panel, staff still need to support the panel. The testing process is cumbersome, not conducive to assembly line operations, and is both tedious and inefficient.

[0026] Therefore, this embodiment provides a display testing fixture for refrigerator display panels, which facilitates the fixed testing of display panels of different models.

[0027] This embodiment proposes a display testing fixture for a refrigerator display panel, including a testing box 1 and a power supply 4. The testing box 1 includes a box body 101, with protrusions 102 on both the front and rear sides of the box body 101. An anti-slip pad 103 is fixed to the bottom of the box body 101, and a tool box 104 is fixed on the protrusions 102. A valve body 301 is embedded in the box body 101. The anti-slip pad 103 is installed at the bottom of the box body 101 to increase friction and prevent the box body 101 from sliding, thereby improving the stability of the box body 101.

[0028] Please see Figure 1 and Figure 2It also includes a vacuum component 2, which is installed on the detection box 1. The vacuum component 2 includes a vacuum pump 201, which creates a vacuum environment by evacuating air. The output end of the vacuum pump 201 is connected to a connecting pipe 202, which is connected to the box body 101. The vacuum component 2 also includes a control button 203, which is installed on the protrusion 102. The control button 203 is used to manually control the start and stop of the vacuum pump 201.

[0029] Please see Figure 3 and Figure 4 It also includes multiple sets of control valves 3, which are installed on the detection box 1. Each control valve 3 includes a valve body 301, a valve plate 302 that is slidably disposed inside the valve body 301, an arc-shaped vent hole on the valve plate 302, and a sealing ring 303 that is fixed inside the valve body 301.

[0030] The valve plate 302 and the sealing ring 303 are connected by an elastic component, which includes a compression spring 304 and a fixing ring 305. The upper end of the compression spring 304 is fixed to the bottom surface of the valve plate 302, and the lower end of the compression spring 304 is fixed to the upper end of the fixing ring 305. The fixing ring 305 is fixed inside the valve body 301. The compression spring 304 provides an elastic force to push the valve plate 302 to reset.

[0031] Please see Figure 3 The control valve 3 also includes a guide component, which includes a fixed post 306 and a limiting plate 307. The fixed post 306 is fixed to the bottom surface of the valve plate 302, and the fixed post 306 is slidably connected to the limiting plate 307. The limiting plate 307 is fixed inside the valve body 301.

[0032] A filter plate 308 is installed inside the valve body 301. The filter plate 308 is used to filter impurities and prevent particulate matter from clogging the valve body 301. The filter plate 308 is threaded into the valve body 301. A cross groove 309 is provided on the filter plate 308. The filter plate 308 can be disassembled with a screwdriver for cleaning.

[0033] Working principle: When testing the display panel, place the display panel on the top surface of the housing 101, and then press the control button 203. After the control button 203 is pressed, the vacuum pump 201 will start. The vacuum pump 201 can remove the air from the housing 101 and valve body 301, so that the inside of the housing 101 and valve body 301 is in a negative pressure state. In the part of valve body 301 that is not covered by the display panel, a negative pressure will be generated quickly inside. The negative pressure will drive the valve plate 302 to press against the sealing ring 303, and the valve body 301 at this point will be in a closed state, thus making the entire housing 101 in a closed state. A stable negative pressure state is formed inside the housing 101. At this time, the top of the valve body 301 that is in contact with the display panel forms an adsorption force under the action of negative pressure, effectively fixing the display panel. At this time, it can be plugged in for testing. This device is convenient for fixing and testing display panels of different models.

Claims

1. A display testing fixture for a refrigerator display panel, comprising a testing box (1) and a power supply (4), characterized in that: It also includes a vacuum component (2), which is mounted on the detection chamber (1); It also includes multiple sets of control valves (3), which are installed on the detection box (1); The control valve (3) includes a valve body (301), a valve plate (302) is slidably disposed inside the valve body (301), an arc-shaped vent hole is provided on the valve plate (302), a sealing ring (303) is fixed inside the valve body (301), and the valve plate (302) and the sealing ring (303) are connected by an elastic component.

2. The display testing fixture for a refrigerator display panel according to claim 1, characterized in that: The elastic component includes a compression spring (304) and a retaining ring (305). The upper end of the compression spring (304) is fixed to the bottom surface of the valve plate (302), and the lower end of the compression spring (304) is fixed to the upper end of the retaining ring (305). The retaining ring (305) is fixed inside the valve body (301).

3. The display testing fixture for a refrigerator display panel according to claim 1, characterized in that: The control valve (3) further includes a guide component, which includes a fixed post (306) and a limiting plate (307). The fixed post (306) is fixed to the bottom surface of the valve plate (302), and the fixed post (306) is slidably connected to the limiting plate (307). The limiting plate (307) is fixed inside the valve body (301).

4. The display testing fixture for a refrigerator display panel according to claim 1, characterized in that: A filter plate (308) is provided inside the valve body (301), and a cross groove (309) is provided on the filter plate (308).

5. The display testing fixture for a refrigerator display panel according to claim 1, characterized in that: The testing box (1) includes a box body (101), and the box body (101) has protrusions (102) on both the front and rear sides.

6. The display testing fixture for a refrigerator display panel according to claim 5, characterized in that: The bottom of the box (101) is fixed with an anti-slip pad (103), the protrusion (102) is fixed with a tool box (104), and the valve body (301) is embedded in the box (101).

7. A display testing fixture for a refrigerator display panel according to claim 6, characterized in that: The vacuum component (2) includes a vacuum pump (201), the output end of which is connected to a connecting pipe (202), the connecting pipe (202) being connected to the housing (101), and the vacuum component (2) also includes a control button (203), which is mounted on the protrusion (102).

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