Test fixture capable of preventing hot plug

Abstract

The embodiment of the utility model belongs to the technical field of display module testing. The utility model also relates to a test fixture capable of preventing hot plugging, which comprises a rack, the top of the rack is provided with a test fixture pressure head, a backlight power supply touch switch and a fixture power supply touch switch, and the backlight power supply touch switch and the fixture power supply touch switch are within the coverage range of the test fixture pressure head. The backlight power supply touch switch and the jig power supply touch switch are arranged, the backlight power supply touch switch and the jig power supply touch switch are within the coverage range of the test jig pressure head, and when the test jig pressure head is opened after the test is completed, the test jig pressure head is separated from the backlight power supply touch switch and the jig power supply touch switch, so that the test jig pressure head is separated from the backlight power supply touch switch and the jig power supply touch switch; therefore, the backlight power supply touch switch and the jig power supply touch switch are switched off, namely the operation of taking down the display module after automatic power off is realized, and the generation of hot plug operation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of display module testing, and more specifically, to a testing fixture capable of preventing hot plugging. Background Art

[0002] Display screens are widely used in today's society and can be seen everywhere. Through display screens, information can be expressed more intuitively and vividly. In the industrial and consumer fields, in addition to products that commonly use display screens, such as monitors, telephones, handheld scanners, cameras, etc., many previously unused devices are now also beginning to use display screens, such as remote controls, ovens, refrigerators, etc.

[0003] Display screens have a huge market, and the shipment volume of display screen modules is also huge. Display screen module shipments require 100% functional testing. When employees test display screen modules, they must follow the operating specifications and cannot connect or remove the display screen module when the test fixture is not powered off. However, during the continuous testing of the display screen, employees may not follow the operating steps and perform hot-swap operations, that is, connect or remove the module when the test fixture is not powered off, which may cause the display screen module to burn out. Therefore, we have made improvements to this and proposed a test fixture that can prevent hot-swap.

[0004] For example, a Chinese patent (publication number CN217820505U) discloses a display panel test fixture, and its specification discloses: In actual use, the following disadvantages still exist: testers are prone to install and remove the LCD screen without powering off, which makes the test product extremely easy to be damaged. The above patent can prove the defects of the existing technology. Utility Model Content

[0005] The technical problem to be solved by the embodiment of the utility model is that employees may not follow the operating steps during the process of continuously testing the display screen, and may perform hot plugging operations, which may easily cause the display screen module to burn out.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A test fixture capable of preventing hot plugging comprises: a rack, wherein a test fixture pressure head, a backlight power touch switch and a fixture power touch switch are arranged on the top of the rack, wherein the backlight power touch switch and the fixture power touch switch are within the coverage of the test fixture pressure head, so as to realize that the backlight power touch switch and the fixture power touch switch are turned on when the test fixture pressure head is pressed, and the backlight power touch switch and the fixture power touch switch are disconnected when the test fixture pressure head is opened. The backlight power touch switch and the fixture power touch switch are arranged in the present application, and the backlight power touch switch and the fixture power touch switch are turned on when the test fixture pressure head is pressed. The backlight power touch switch and the fixture power touch switch are within the coverage of the test fixture pressure head. During testing, the test fixture pressure head is rotated and pressed down to touch the backlight power touch switch and the fixture power touch switch to turn on the circuit, which is equivalent to powering on after the display module is connected. After the test is completed, when the test fixture pressure head is opened, the test fixture pressure head is separated from the backlight power touch switch and the fixture power touch switch, so that the backlight power touch switch and the fixture power touch switch are disconnected, that is, the operation of removing the display module after automatic power-off is realized, avoiding the occurrence of hot plug operations.

[0008] As an improvement of the utility model, a backlight power interface is provided at the bottom of the frame, the backlight power interface is connected to a backlight power touch switch, and the backlight power touch switch is used to connect the power supply.

[0009] As an improvement of the utility model, a jig power interface is provided at the bottom of the rack, the jig power interface is connected to a jig power touch switch, and the jig power touch switch is used to connect the power supply.

[0010] As an improvement of the utility model, the rack is provided with an automatic test fixture connected to the backlight power interface and the fixture power interface, and the automatic test fixture is used to connect to the connector on the display module during the test process.

[0011] As an improvement of the utility model, a positioning portion is provided on the top of the frame, and the positioning portion is used for positioning the display module during detection.

[0012] As an improved manner of the utility model, the positioning portion includes a display module positioning groove opened on the top of the frame, and the display module positioning groove is used to place the display module.

[0013] As an improved manner of the utility model, two taking and placing grooves are further provided on the top of the frame, and the two taking and placing grooves are respectively located on both sides of the display module positioning groove.

[0014] As an improved manner of the present invention, a receiving groove is further provided on the top of the frame, and the receiving groove is used for placing the display module FPC.

[0015] As an improved manner of the utility model, a buzzer is arranged in the rack, and the buzzer is connected to the backlight power touch switch and the fixture power touch switch.

[0016] As an improved manner of the utility model, two indicator lights are arranged on the rack, and the two indicator lights are respectively connected to the backlight power interface and the fixture power interface.

[0017] Compared with the prior art, the embodiments of the present invention mainly have the following beneficial effects:

[0018] In order to solve the problem in the prior art that employees may not follow the operating steps during the continuous testing of the display screen, and may perform hot plug operations, which may easily cause the display screen module to burn out, the present application provides a backlight power touch switch and a fixture power touch switch, and the backlight power touch switch and the fixture power touch switch are within the coverage range of the test fixture pressure head. During detection, the test fixture pressure head is rotated and pressed down to touch the backlight power touch switch and the fixture power touch switch to turn on the circuit, which is equivalent to powering on after the display module is connected. After the test is completed, when the test fixture pressure head is opened, the test fixture pressure head is separated from the backlight power touch switch and the fixture power touch switch, so that the backlight power touch switch and the fixture power touch switch are disconnected, that is, the operation of removing the display module after automatic power-off is realized, thereby avoiding the occurrence of hot plug operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a test fixture capable of preventing hot plugging provided in this application;

[0020] Figure 2 A schematic diagram of the structure of a rack of a test fixture capable of preventing hot plugging provided in the present application, viewed from above;

[0021] Figure 3 The test fixture that can prevent hot plugging provided in this application Figure 1 Enlarged structural diagram at A in the middle.

[0022] Indicated in the figure:

[0023] 1. Rack; 2. Test fixture pressure head; 3. Backlight power touch switch; 301. Backlight power interface; 4. Fixture power touch switch; 401. Fixture power interface; 5. Automatic test fixture; 6. Display module positioning groove; 601. Pick-and-place groove; 7. Accommodation groove. DETAILED DESCRIPTION

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present invention belongs; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Reference to "embodiments" herein means that specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0025] As described in the background technology, display screen modules are required to undergo 100% functional testing before shipment. When employees test display screen modules, they must follow the operating specifications and must not connect or remove the display screen module when the test fixture is not powered off. However, during the process of continuously testing the display screen, employees may not follow the operating procedures and may perform hot-swap operations, that is, connect or remove the module when the test fixture is not powered off, which may cause the display screen module to burn out.

[0026] In order to solve this technical problem, the utility model provides a test fixture capable of preventing hot plugging, which is applied to the test of a display module.

[0027] Specifically, please refer to Figure 1 and Figure 3 The test fixture capable of preventing hot plugging specifically includes:

[0028] A frame 1, wherein a test jig pressure head 2, a backlight power touch switch 3 and a jig power touch switch 4 are arranged on the top of the frame 1, wherein the backlight power touch switch 3 and the jig power touch switch 4 are within the coverage of the test jig pressure head 2, so as to realize that the backlight power touch switch 3 and the jig power touch switch 4 are turned on when the test jig pressure head 2 is pressed, and the backlight power touch switch 3 and the jig power touch switch 4 are disconnected when the test jig pressure head 2 is opened.

[0029] The utility model provides a test fixture that can prevent hot plugging. The application sets a backlight power touch switch 3 and a fixture power touch switch 4. The backlight power touch switch 3 and the fixture power touch switch 4 are within the coverage of the test fixture pressure head 2. During detection, the test fixture pressure head 2 is rotated and pressed to touch the backlight power touch switch 3 and the fixture power touch switch 4 to turn on the circuit, which is equivalent to powering on after the display module is connected. After the test is completed, when the test fixture pressure head 2 is opened, the test fixture pressure head 2 is separated from the backlight power touch switch 3 and the fixture power touch switch 4, so that the backlight power touch switch 3 and the fixture power touch switch 4 are disconnected, that is, the operation of removing the display module after automatic power off is realized, thereby avoiding the occurrence of hot plugging operations.

[0030] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] Embodiment 1 of the test fixture capable of preventing hot plugging of the utility model

[0034] Please refer to Figure 1 and Figure 3 The utility model can prevent hot plugging of the test fixture comprising: a rack 1, the top of which is provided with a test fixture pressure head 2, a backlight power touch switch 3 and a fixture power touch switch 4, the backlight power touch switch 3 and the fixture power touch switch 4 are within the coverage of the test fixture pressure head 2, so as to realize that the backlight power touch switch 3 and the fixture power touch switch 4 are turned on when the test fixture pressure head 2 is pressed, and the backlight power touch switch 3 and the fixture power touch switch 4 are disconnected when the test fixture pressure head 2 is turned on. The backlight power touch switch 3 and the fixture power touch switch 4 are set by the application, The backlight power touch switch 3 and the fixture power touch switch 4 are within the coverage of the test fixture pressure head 2. During detection, the test fixture pressure head 2 is rotated and pressed down to touch the backlight power touch switch 3 and the fixture power touch switch 4 to turn on the circuit, which is equivalent to powering on after the display module is connected. After the test is completed, when the test fixture pressure head 2 is opened, the test fixture pressure head 2 is separated from the backlight power touch switch 3 and the fixture power touch switch 4, so that the backlight power touch switch 3 and the fixture power touch switch 4 are disconnected, that is, the operation of removing the display module after automatic power-off is realized, thereby avoiding the occurrence of hot plug operations.

[0035] Further, such as Figure 1-Figure 3 As shown, a backlight power interface 301 is provided at the bottom of the rack 1, and the backlight power interface 301 is connected to the backlight power touch switch 3, and the backlight power touch switch 3 is used to connect the power supply. The backlight power touch switch 3 is normally open and does not have a self-locking function. When the backlight power touch switch 3 is pressed down by the test fixture pressure head 2, the backlight power touch switch 3 is turned on, so that the backlight power interface 301 is turned on with the power supply, and when the test fixture pressure head 2 is separated from the backlight power touch switch 3, the backlight power touch switch 3 is disconnected, so that the backlight power interface 301 is disconnected from the power supply.

[0036] Further, such as Figure 1-Figure 3 As shown, a jig power interface 401 is provided at the bottom of the rack 1, and the jig power interface 401 is connected to the jig power touch switch 4, and the jig power touch switch 4 is used to connect the power supply, and the jig power touch switch 4 is normally open and does not have a self-locking function. When the jig power touch switch 4 is pressed down by the test jig pressure head 2, the jig power touch switch 4 is turned on, so that the jig power interface 401 is turned on with the power supply, and when the test jig pressure head 2 is separated from the jig power touch switch 4, the jig power touch switch 4 is disconnected, so that the jig power interface 401 is disconnected from the power supply.

[0037] Further, such as Figure 1 As shown, the frame 1 is provided with an automatic test jig 5 connected to the backlight power interface 301 and the jig power interface 401. The automatic test jig 5 is used to connect to the connector on the display module during the test. The automatic test jig 5 is a jig for testing the display module in the prior art. The test principle and method are all in the prior art and will not be repeated in this application.

[0038] Furthermore, a positioning portion is provided on the top of the frame 1, and the positioning portion is used to position the display module during detection, thereby reducing the situation where the display module slips during the detection process.

[0039] Further, such as Figure 1 As shown, the positioning portion includes a display module positioning groove 6 opened on the top of the frame 1, and the display module positioning groove 6 is used to place the display module. By placing the display module in the display module positioning groove 6, the display module positioning groove 6 can position the display module, thereby achieving the effect of reducing the display module from slipping during the detection process.

[0040] Further, such as Figure 1 As shown, the top of the frame 1 is provided with two pick-up and placement grooves 601 , which are respectively located on both sides of the display module positioning groove 6 . The arrangement of the pick-up and placement grooves 601 facilitates the insertion of fingers for picking up and placing the display module.

[0041] Further, such as Figure 1 As shown, a receiving groove 7 is also provided on the top of the frame 1, and the receiving groove 7 is used for placing the display module FPC.

[0042] Embodiment 2 of the test fixture capable of preventing hot plugging of the utility model

[0043] The utility model can prevent the test fixture from being hot-swapped. Further, a buzzer is arranged in the frame 1, and the buzzer is connected to the backlight power touch switch 3 and the fixture power touch switch 4. When the backlight power touch switch 3 and the fixture power touch switch 4 are both connected, the buzzer sounds once for reminder. If the buzzer does not sound, it indicates that the circuit is not connected.

[0044] Embodiment 3 of the test fixture capable of preventing hot plugging of the utility model

[0045] The utility model can prevent the test fixture from being hot-swapped. Further, two indicator lights are arranged on the rack 1, and the two indicator lights are respectively connected to the backlight power interface 301 and the fixture power interface 401, and the two indicator lights respectively indicate the status of the backlight power interface 301 and the fixture power interface 401. When the two indicator lights are on, it means power is on, and when the two indicator lights are off, it means power is off, so as to confirm the power on and off status.

[0046] When in use, the display module is placed in the display module positioning groove 6, the FPC of the display module corresponds to the accommodating groove 7, the connector on the display module FPC corresponds to the automatic test jig 5, and the test jig pressure head 2 is pressed so that the connector and the automatic test jig 5 are buckled together. At this time, the test jig pressure head 2 triggers the backlight power touch switch 3 and the jig power touch switch 4 to turn on the circuit, which is equivalent to powering on after the display module is connected. After the test is completed, when the test jig pressure head 2 is opened, the test jig pressure head 2 is separated from the backlight power touch switch 3 and the jig power touch switch 4, so that the backlight power touch switch 3 and the jig power touch switch 4 are disconnected, that is, the operation of removing the display module after automatic power off is realized, avoiding the occurrence of hot plug operations.

[0047] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A test fixture capable of preventing hot plugging, characterized in that: include: A frame (1), wherein a test jig pressure head (2), a backlight power touch switch (3) and a jig power touch switch (4) are arranged on the top of the frame (1); the backlight power touch switch (3) and the jig power touch switch (4) are within the coverage of the test jig pressure head (2), so as to realize that the backlight power touch switch (3) and the jig power touch switch (4) are turned on when the test jig pressure head (2) is pressed, and the backlight power touch switch (3) and the jig power touch switch (4) are turned off when the test jig pressure head (2) is turned on.

2. The test fixture capable of preventing hot plugging according to claim 1, characterized in that: A backlight power interface (301) is provided at the bottom of the frame (1), the backlight power interface (301) is connected to a backlight power touch switch (3), and the backlight power touch switch (3) is used to connect a power source.

3. The test fixture capable of preventing hot plugging according to claim 2, characterized in that: A jig power interface (401) is provided at the bottom of the frame (1), the jig power interface (401) is connected to a jig power touch switch (4), and the jig power touch switch (4) is used to connect a power source.

4. The test fixture capable of preventing hot plugging according to claim 3, characterized in that: An automatic test jig (5) connected to the backlight power interface (301) and the jig power interface (401) is arranged on the rack (1), and the automatic test jig (5) is used to connect to the connector on the display module during the test process.

5. The test fixture capable of preventing hot plugging according to claim 4, characterized in that: A positioning portion is provided on the top of the frame (1), and the positioning portion is used for positioning the display module during detection.

6. The test fixture capable of preventing hot plugging according to claim 5, characterized in that: The positioning portion comprises a display module positioning groove (6) opened on the top of the frame (1), and the display module positioning groove (6) is used to place the display module.

7. The test fixture capable of preventing hot plugging according to claim 6, characterized in that: The top of the frame (1) is also provided with two pick-up and placement grooves (601), and the two pick-up and placement grooves (601) are respectively located on both sides of the display module positioning groove (6).

8. The test fixture capable of preventing hot plugging according to claim 7, characterized in that: The top of the frame (1) is also provided with a receiving groove (7), and the receiving groove (7) is used for placing the display module FPC.

9. The test fixture capable of preventing hot plugging according to claim 8, characterized in that: A buzzer is arranged in the frame (1), and the buzzer is connected to the backlight power touch switch (3) and the fixture power touch switch (4).

10. The test fixture capable of preventing hot plugging according to claim 8, characterized in that: The frame (1) is provided with two indicator lights, which are respectively connected to a backlight power supply interface (301) and a fixture power supply interface (401).

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