Test fixture for display mainboard

Abstract

The utility model provides a kind of test tool of display mainboard, it includes: rack, main control module and multiple electric connectors;Multiple placing grooves are provided at interval on rack, and placing groove is used to accommodate display mainboard;Main control module is connected with rack, and main control module is used to be electrically connected with external power supply;Multiple electric connectors are set corresponding multiple placing grooves, one end of electric connector is electrically connected with main control module, and the other end of electric connector is inserted into placing groove, to be used to be electrically connected with display mainboard;Main control module is configured to be able to supply power to multiple display mainboards respectively by multiple electric connectors, to realize the pre-boot processing of display mainboard.Rack can accommodate multiple display mainboards simultaneously by multiple placing grooves, and multiple display mainboards are electrically connected with multiple electric connectors respectively, so that main control module can supply power to multiple display mainboards simultaneously by multiple electric connectors, to carry out pre-boot processing for multiple display mainboards simultaneously, improve the processing efficiency of multiple display mainboards.

Description

Technical Field

[0001] This utility model relates to the field of display technology, and in particular to a testing fixture for display motherboards. Background Technology

[0002] Currently, display devices are widely used in people's lives and work. They can present electrical signals, data or information in a visual form, thus serving as a visual interface for human-computer interaction to realize the conversion, transmission, interaction and adaptation of information.

[0003] The display device includes a display motherboard and a display module. The display motherboard is the core of control and signal processing, capable of receiving and analyzing external signals. The display motherboard is electrically connected to the display module, enabling it to control the display module to convert electrical signals into visible light images.

[0004] In related technologies, after a display motherboard is manufactured, it needs to undergo a pre-boot process before performance testing can be performed. However, the pre-boot process is time-consuming due to the need for hardware and software initialization. Since multiple display motherboards need to undergo pre-boot processing sequentially after production before performance testing, this impacts the overall testing efficiency. Utility Model Content

[0005] The purpose of this application is to provide a test fixture for a display motherboard, which can improve the pre-boot processing efficiency of the display motherboard, thereby facilitating subsequent testing of the display motherboard.

[0006] To solve the above-mentioned technical problems, this application adopts the following technical solution:

[0007] According to one aspect of this application, a test fixture for a display motherboard is provided, comprising: a placement rack, a main control module, and a plurality of electrical connectors; the placement rack has a plurality of placement slots spaced apart for accommodating the display motherboard; the main control module is connected to the placement rack and is used for electrical connection to an external power supply; the plurality of electrical connectors are arranged corresponding to the plurality of placement slots, one end of the electrical connector is electrically connected to the main control module, and the other end of the electrical connector extends into the placement slot for electrical connection to the display motherboard; the main control module is configured to supply power to the plurality of display motherboards respectively through the plurality of electrical connectors to realize pre-power-on processing of the display motherboard.

[0008] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: In this application, the mounting rack can simultaneously accommodate multiple display motherboards through multiple mounting slots. The multiple display motherboards are electrically connected to multiple electrical connectors, so that the main control module can simultaneously supply power to the multiple display motherboards through the multiple electrical connectors, thereby simultaneously performing pre-power-on processing for the multiple display motherboards and improving the processing efficiency of the multiple display motherboards.

[0009] In this embodiment, the placement rack includes: a base and a plurality of partition plates; a working cavity is provided in the base for accommodating the main control module; the partition plates are located on the outside of the base; the plurality of partition plates are spaced apart and connected to at least one side wall of the base, and any two adjacent partition plates connected to the same side wall of the base and the base enclose a placement groove.

[0010] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: The base has a working cavity for accommodating the main control module. On the one hand, it can protect the main control module from being damaged by collisions with other external objects, and it is also convenient for the main control module to move together with the placement rack 100. On the other hand, it can improve the space utilization of the test fixture, reduce the volume of the test fixture, and facilitate the movement and transportation of the test fixture.

[0011] In this embodiment, the partition plate extends vertically; a portion of the partition plate is disposed on the upper sidewall of the base, so that the multiple partition plates and the upper sidewall of the base enclose and form multiple placement slots; and / or, the lower sidewall of the base extends horizontally beyond the peripheral sidewall of the base, and the lower end of a portion of the partition plate is connected to the lower sidewall of the base, so that the multiple partition plates and the lower sidewall of the base enclose and form multiple placement slots.

[0012] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: A specific embodiment of a placement rack is provided, which can improve the space utilization of the placement rack, enabling the placement rack to accommodate more display motherboards, thereby improving the pre-boot processing efficiency of the display motherboards.

[0013] In this embodiment, the partition plate is provided with a clearance notch, which is located at the opening of the placement slot, and at least part of the display motherboard is exposed at the clearance notch.

[0014] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: The clearance notch serves two purposes. First, it facilitates the placement of the display motherboard into the storage slot, preventing the partition from colliding with the worker's hands and causing the motherboard to fall or be damaged. Second, the clearance notch exposes part of the display motherboard on the outside of the storage slot, making it easier for workers to grasp and place the motherboard before and after pre-power-on processing, thus improving the efficiency of motherboard handling.

[0015] In this embodiment, at least one heat dissipation hole is provided on the base, which is used to connect the working chamber to the outside. A heat dissipation fan is provided in the working chamber, which is arranged corresponding to the heat dissipation hole to realize the airflow circulation between the working chamber and the outside.

[0016] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: The heat dissipation holes and cooling fan can output the heat generated by the main control module in the working chamber to the outside, thereby cooling the main control module and ensuring its stable and safe operation.

[0017] In this embodiment, the test fixture further includes a controller, which is disposed on the outside of the base; the controller includes a power switch and control buttons, both of which are electrically connected to the main control module; the power switch is used to control an external power source to supply power to the main control module; the control buttons are used to control the main control module to supply power to the display motherboard.

[0018] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: The power switch and control buttons are all electrically connected to the main control module. Operators can use the power switch to control the external power supply 51 to power the main control module 200. They can also use the control buttons to control the main control module to power the display motherboard. This enables multi-level control of the test fixture, ensuring its safety and reliability.

[0019] In this embodiment, the base has multiple through holes corresponding to the multiple placement slots, and the through holes are used for the electrical connectors to pass through; and / or, a status indicator light group is provided on the inner wall of each of the multiple placement slots, and the multiple status indicator light groups are electrically connected to the main control module so that the status indicator light groups are used to switch colors according to the pre-power-on processing results of the adjacent display motherboards.

[0020] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: The perforations are for power supply connectors to pass through, so that the electrical connectors can be electrically connected to the main control module and the display motherboard through the perforations, which facilitates the arrangement of various circuits in the working cavity and improves the production and assembly efficiency of the test fixtures.

[0021] In this embodiment, the main control module includes a transformer circuit, a rectifier-buck circuit, and a time-division control circuit. The input terminal of the transformer circuit is electrically connected to an external power supply, and the output terminal of the transformer circuit is electrically connected to the rectifier-buck circuit. The rectifier-buck circuit is connected in parallel with multiple electrical connectors to apply a stable voltage to the display motherboard for pre-power-on processing. The time-division control circuit is electrically connected to the rectifier-buck circuit and can control the rectifier-buck circuit to output different voltages at different times to pre-power on different modules of the display motherboard.

[0022] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: After receiving voltage from an external power source, the main control module first transforms and rectifies the voltage to reduce it to the preset voltage values ​​of different functional modules. This allows for the separate power supply to different functional modules of the main control module, enabling segmented pre-power-on processing of different functional modules. This effectively reduces the total energy consumption required for the pre-power-on processing of the display motherboard and lowers testing costs.

[0023] In this embodiment, a protective layer is provided on the inner surface of the placement slot. The protective layer is made of a flexible insulating material to flexibly support the display motherboard.

[0024] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: The protective layer is made of a flexible insulating material to flexibly support the display motherboard, thereby preventing the display motherboard from bumping into the mounting bracket and ensuring the safety and reliability of the display motherboard.

[0025] In this embodiment, the test fixture also includes a movable frame connected to the lower side of the placement frame to support and move the placement frame, the main control module, and the electrical connector.

[0026] As can be seen from the above technical solution, this application has at least the following advantages and positive effects: The mobile rack can carry and move the placement rack, thereby improving the moving efficiency of the test fixture, the applicability of the test fixture, and the utilization efficiency of the test fixture. Attached Figure Description

[0027] Figure 1 This is a first-view structural schematic diagram of the testing fixture of this utility model.

[0028] Figure 2 This is a second-view structural schematic diagram of the testing fixture of this utility model.

[0029] Figure 3This is a third-view structural schematic diagram of the testing fixture of this utility model.

[0030] Figure 4 This is a structural schematic diagram of the testing fixture of this utility model from a fourth perspective.

[0031] Figure 5 This is a schematic diagram of the structure of the testing fixture of this utility model after removing part of the partition plate.

[0032] Figure 6 yes Figure 5 The diagram shows the structure after removing one of the sidewalls.

[0033] Figure 7 yes Figure 5 The diagram shows the structure after removing the two opposing sidewalls.

[0034] Figure 8 This is a schematic diagram of the partition plate of the testing fixture of this utility model.

[0035] Figure 9 This is a schematic diagram of the controller of the test fixture of this utility model.

[0036] Figure 10 This is a schematic diagram of the functional modules of the main control module of the testing fixture of this utility model.

[0037] The reference numerals in the attached drawings are explained as follows: 100, placement rack; 110, base; 111, working chamber; 112, upper side plate; 113, lower side plate; 114, peripheral side plate; 115, engaging groove; 116, perforation; 120, partition plate; 121, clearance notch; 130, placement slot; 200, main control module; 210, transformer circuit; 220, rectifier and step-down circuit; 230, time-sharing control circuit; 300, controller; 310, power switch; 320, control button; 330, control light; 400, status indicator light group; 51, external power supply; 52, display mainboard. Detailed Implementation

[0038] Typical embodiments embodying the features and advantages of this application will be described in detail in the following description. It should be understood that this application can have various variations in different embodiments, all of which do not depart from the scope of this application, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this application.

[0039] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] In related technologies, after the display motherboard is manufactured, it needs to undergo a pre-power-on process before performance testing can be performed.

[0041] However, the pre-boot process for display motherboards is lengthy due to the need for hardware and software initialization. After multiple display motherboards are manufactured, they must undergo pre-boot processing sequentially before performance testing, thus impacting both testing and production efficiency.

[0042] Figure 1 This is a first-view structural schematic diagram of the testing fixture of this utility model. Figure 2 This is a second-view structural schematic diagram of the testing fixture of this utility model.

[0043] See Figure 1 and Figure 2 This application provides a test fixture for display motherboards (hereinafter referred to as the test fixture), which can accommodate multiple display motherboards 52 and perform pre-power-on processing on multiple display motherboards 52 simultaneously, thereby effectively improving the testing efficiency of display motherboards 52 and improving the production efficiency of display motherboards 52.

[0044] See Figure 1 For ease of understanding and description, the state of the test fixture during use will be used as a reference, the vertical direction of the test fixture will be the vertical direction in the following text, and the horizontal direction of the test fixture will be the horizontal direction in the following text.

[0045] See Figure 1 and Figure 2 The testing fixture of this application may include a placement rack 100. The placement rack 100 is provided with a plurality of placement slots 130 spaced apart, the placement slots 130 being used to accommodate the display motherboard 52.

[0046] The multiple placement slots 130 allow multiple display motherboards 52 to be arranged neatly, avoiding the situation where the display motherboards 52 are messy and thus missed. At the same time, it also makes it easier for staff to pick up and put down the display motherboards 52 and count them, thus improving the pre-boot processing efficiency of the display motherboards 52.

[0047] Figure 3 This is a third-view structural schematic diagram of the testing fixture of this utility model. Figure 4 This is a structural schematic diagram of the testing fixture of this utility model from a fourth perspective. Figure 5 This is a schematic diagram of the structure of the testing fixture of this utility model after removing part of the partition plate. Figure 6 yes Figure 5 The diagram shows the structure after removing one of the sidewalls.

[0048] See Figure 1 , Figure 2 and Figure 6 In this embodiment, the placement rack 100 may include a base 110 and a plurality of partition plates 120. A working cavity 111 is formed within the base 110, which is used to accommodate the main control module 200. The partition plates 120 are located on the outer side of the base 110. The plurality of partition plates 120 are spaced apart and connected to at least one side wall of the base 110. Any two adjacent partition plates 120 connected to the same side wall of the base 110 can form a placement groove 130 with the base 110.

[0049] The base 110 has a working cavity 111 for accommodating the main control module 200. On the one hand, it can protect the main control module 200 from being damaged by collisions with other external objects, and facilitate the main control module 200 to move together with the placement rack 100. On the other hand, it can improve the space utilization of the test fixture, reduce the volume of the test fixture, and facilitate the movement and transportation of the test fixture.

[0050] Figure 7 yes Figure 5 The diagram shows the structure after removing the two opposing sidewalls. Figure 8 This is a schematic diagram of the partition plate of the testing fixture of this utility model.

[0051] See Figure 2 , Figure 5 and Figure 8 In this embodiment, the partition plate 120 can extend vertically.

[0052] Partial partitions 120 can be disposed on the upper sidewall 112 of the base 110, so that multiple partitions 120 and the upper sidewall 112 of the base 110 enclose multiple placement slots 130. The multiple placement slots 130 are used to accommodate multiple display motherboards 52 and to perform pre-power-on processing on the display motherboards 52. The multiple placement slots 130 located on the upper side of the base 110 can constitute a first placement group.

[0053] In some embodiments, multiple partition plates 120 located on the upper side of the base 110 are arranged in parallel so that the placement slots 130 in the first placement group have the same volume, ensuring that the placement environment of the display motherboard 52 is the same, making the structure of the placement rack 100 neat and beautiful, and improving the user experience.

[0054] See Figure 6 and Figure 7 In this embodiment, the placement rack 100 may further include a first stop plate (not shown in the figure), which is vertically arranged and extends horizontally. The first stop plate is disposed on the same side of the plurality of partition plates 120 in the first placement group, so that the first stop plate can simultaneously connect the plurality of partition plates 120 in the first placement group, thereby enabling the first stop plate, any two adjacent partition plates 120 and the upper sidewall 112 of the base 110 to enclose and form a placement groove 130.

[0055] The first stop plate allows the display motherboard 52 to be inserted deep into the placement slot 130, preventing the display motherboard 52 from coming out of the base 110 during placement and pre-power-on processing, thus ensuring the safety and reliability of the display motherboard 52.

[0056] In other embodiments, the base 110 may include an upper sidewall 112, a lower sidewall 113, and a plurality of peripheral sidewalls 114. The upper sidewall 112, the lower sidewall 113, and the plurality of peripheral sidewalls 114 can enclose and form a working cavity 111.

[0057] The peripheral sidewall 114 of the base 110 extends vertically to extend upward beyond the upper sidewall 112 of the base 110. The peripheral sidewall 114 extending beyond the upper sidewall 112 of the base 110 can be connected to a plurality of partition plates 120 within the first placement group to form a first stop plate.

[0058] The first stop plate is formed by the peripheral sidewall 114 of the base 110, which can improve the structural strength of the placement rack 100, improve the structural compactness of the placement rack 100, and thus improve the space utilization of the placement rack 100.

[0059] See Figure 6 and Figure 7In this embodiment, the lower sidewall 113 of the base 110 extends horizontally beyond the peripheral sidewall 114 of the base 110. The lower ends of some partition plates 120 are connected to the lower sidewall 113 of the base 110, so that the partition plates 120 and the lower sidewall of the base 110 enclose and form multiple placement slots 130. The multiple placement slots 130 are used to accommodate multiple display motherboards 52 for pre-power-on processing of the display motherboards 52. The multiple placement slots 130 connected to the same peripheral sidewall 114 of the base 110 can constitute a second placement group.

[0060] In some embodiments, multiple partitions 120 in the second placement group can be connected to adjacent peripheral sidewalls 114 of the base 110 so that the lower sidewall 113 of the base 110, the peripheral sidewall 114 and any two adjacent partitions 120 enclose a placement groove 130, thereby effectively improving the structural strength of the second placement group and ensuring the reliability of the placement rack 100.

[0061] In some embodiments, a plurality of partition plates 120 connected to the same circumferential sidewall 114 of the base 110 are arranged in parallel so that the placement slots 130 in the second placement group have the same shape, making it easier for staff to place the display motherboard 52 in the placement slots 130.

[0062] In some embodiments, another embodiment of the second placement group is: The peripheral sidewall 114 of the base 110 can be connected to a plurality of partition plates 120, which are spaced apart along the length of the connected peripheral sidewall 114. The placement rack 100 may include a second stop plate. The second stop plate extends horizontally. The second stop plate is located below the partition plates 120 on the periphery of the base 110, and is connected to the plurality of partition plates 120 connected to the same peripheral sidewall 114 of the base 110, so that the peripheral sidewall 114 of the base 110, the two partition plates 120 and the second stop plate can be closed to form a placement groove 130. At this time, the second stop plate is used to support the display mainboard 52.

[0063] In some embodiments, the second placement group can correspond to multiple peripheral sidewalls 114 of the base 110, and the multiple second placement groups can respectively accommodate multiple display motherboards 52, so that the multiple display motherboards 52 can perform pre-power-on processing, thereby improving the testing efficiency and production efficiency of the display motherboards 52.

[0064] See Figure 1 and Figure 2In this embodiment, the placement rack 100 may include a first placement group and a second placement group. Multiple partitions 120 in the first placement group are arranged parallel to multiple partitions 120 in the second placement group. Furthermore, the opening directions of the second placement group and the first placement group are the same, thus facilitating the simultaneous placement and removal of the display motherboard 52 from both the first and second placement groups by the operator positioned on one side of the testing fixture, thereby improving the testing efficiency of the display motherboard 52.

[0065] See Figure 5 and Figure 6 In this embodiment, a plurality of engaging grooves 115 may be provided on the side wall where the base 110 is connected to the partition plate 120. The plurality of engaging grooves 115 are provided for the partition plates 120 to accommodate at least a portion of the partition plates 120, thereby improving the connection strength between the partition plates 120 and the base 110.

[0066] In some embodiments, the base 110 and the partition plate 120 may be welded together to further improve the structural strength and reliability of the placement rack 100.

[0067] See Figure 5 In this embodiment, the base 110 may be rectangular.

[0068] In some embodiments, when the base 110 is cuboid, a plurality of partition plates 120 may extend along the width direction of the base 110 and be spaced apart along the length direction of the base 110. The two outermost partition plates 120 in the first placement group and / or the second placement group can be integrally formed with the peripheral sidewalls 114 at both ends of the base 110 in the length direction, thereby further improving the structural strength and reliability of the placement rack 100.

[0069] In some embodiments, the base 110 may also be a prism-shaped structure such as a triangular prism, a pentagonal prism, or a hexagonal prism, so that the upper sidewall 112 and the peripheral sidewall 114 of the base 110 can be connected to a plurality of partition plates 120, and any two adjacent partition plates 120 and the base 110 can be enclosed to form a placement groove 130.

[0070] In other embodiments, the base 110 may also be a stepped structure, so that the multiple upper sidewalls 112 and peripheral sidewalls 114 of the base 110 can be connected to the multiple partition plates 120, so that any two adjacent partition plates 120 and the base 110 can be enclosed to form a placement groove 130, thereby allowing multiple first placement groups to be provided on the multiple upper sidewalls 112 of the base 110, which can be used to accommodate multiple display motherboards 52 respectively.

[0071] See Figure 5 , Figure 6 and Figure 7In this embodiment, the base 110 may have multiple through holes 116 corresponding to multiple placement slots 130. The through holes 116 are used for power supply connectors to pass through, thus enabling electrical connection between the main control module 200 and the display motherboard 52. This facilitates the arrangement of circuits within the working cavity 111 and improves the production and assembly efficiency of the test fixture. Furthermore, since the through holes 116 correspond to the placement slots 130, multiple electrical connectors can be prevented from tangling during use, improving the efficiency of the test fixture.

[0072] In some embodiments, when the partition plate 120 is connected to the lower side wall 113 or the peripheral side wall 114 of the base 110, the through hole 116 can be provided on the peripheral side wall 114 connected to the partition plate 120 and can be located in the lower middle part of the peripheral side wall 114, so that the placement slot 130 can accommodate the display motherboard 52 and the electrical connectors connected thereto, thereby avoiding the multiple electrical connectors from getting tangled and messy, and making it convenient for users to use.

[0073] In other embodiments, when the partition plate 120 is connected to the upper sidewall of the base 110, the perforation 116 may be provided on the upper sidewall 112 of the base 110.

[0074] In this embodiment, at least one heat dissipation hole (not shown) may be provided on the base 110. The heat dissipation hole is used to connect the working cavity 111 and the outside world, so as to output the heat generated by the main control module 200 in the working cavity 111 to the outside world, thereby cooling the main control module 200 and making the main control module 200 operate stably and safely.

[0075] In some embodiments, there may be multiple heat dissipation holes. These holes are respectively disposed on at least two circumferential sidewalls 114 of the base 110 to facilitate air convection between the working cavity 111 and the outside environment. In this embodiment, a cooling fan (not shown in the figure) may also be provided inside the working chamber 111. The cooling fan is provided with corresponding heat dissipation holes to realize airflow circulation between the working chamber 111 and the outside.

[0076] See Figure 1 , Figure 2 and Figure 8 In this embodiment, a clearance notch 121 may be provided on the partition plate 120. The clearance notch 121 is located at the opening of the placement slot 130, and at least part of the main board 52 is exposed at the clearance notch 121.

[0077] On the one hand, it facilitates the placement of the display motherboard 52 into the placement slot 130, preventing the partition plate 120 from colliding with the operator's hands and causing the display motherboard 52 to fall or be damaged. On the other hand, part of the display motherboard 52 is exposed outside the placement slot 130 through the avoidance notch 121, which facilitates the operator's handling of the display motherboard 52 before and after the pre-power-on process, improving the transfer efficiency of the display motherboard 52.

[0078] In some embodiments, the partitions 120 may be rectangular in shape in a plane perpendicular to the arrangement direction of the plurality of partitions 120, and the upper end of the partition 120 away from the base 110 is provided with a slope. The partition 120 has an avoidance notch 121 at the slope. When the display motherboard 52 is placed in the placement slot 130, at least one corner of the display motherboard 52 is exposed at the avoidance notch 121, thereby facilitating the staff to pick up and move the display motherboard 52 through the avoidance notch 121 and improving the transfer efficiency of the display motherboard 52.

[0079] In this embodiment, a protective layer (not shown) may be provided on the inner surface of the placement slot 130. The protective layer is made of a flexible insulating material to flexibly support the display motherboard 52, thereby preventing the display motherboard 52 from colliding with the placement bracket 100 and ensuring the safety and reliability of the display motherboard 52.

[0080] In this embodiment, a support and limiting structure (not shown) may also be provided on the inner wall of the placement slot 130. The support and limiting structure can be used to abut against the opposite side walls of the display motherboard 52, so that when the display motherboard 52 is vertically placed into the placement slot 130, the support and limiting structure limits the display motherboard 52 so that the display motherboard 52 is spaced apart from the partition plate 120, thereby preventing the partition plate 120 from touching and bumping the electronic components on the display motherboard 52.

[0081] In some embodiments, the support limiting structure may be two horizontally extending abutment posts. One end of the abutment post is connected to the inner wall of the placement groove 130, and the other end of the abutment post is suspended to abut against the side wall of the display motherboard 52, thereby supporting the display motherboard 52.

[0082] In other embodiments, the support post can be made of an elastic material to prevent the display motherboard 52 from being damaged by impact.

[0083] In some embodiments, the support limiting structure can be used to abut against at least one side of the display motherboard 52, so that the lower end of the display motherboard 52 is pressed against the lower sidewall of the placement groove 130, and the upper end of the display motherboard 52 can abut against the support limiting structure, thereby causing the display motherboard 52 to be tilted and away from the partition plate 120.

[0084] Figure 9This is a schematic diagram of the controller of the test fixture of this utility model. Figure 10 This is a schematic diagram of the functional modules of the main control module of the testing fixture of this utility model.

[0085] See Figure 10 In this embodiment, the test fixture may further include a main control module 200. The main control module 200 may be disposed within the working cavity 111 to improve the space utilization of the placement rack 100. The main control module 200 is used to electrically connect to an external power supply 51 to obtain electrical energy. The main control module 200 is configured to supply power to multiple display motherboards 52 through multiple electrical connectors to realize the pre-power-on processing of the display motherboards 52.

[0086] See Figure 10 In this embodiment, the main control module 200 may include a transformer circuit 210, a rectifier-buck circuit 220, and a time-sharing control circuit 230. The input terminal of the transformer circuit 210 is electrically connected to an external power supply 51, and the output terminal of the transformer circuit 210 is electrically connected to the rectifier-buck circuit 220. The rectifier-buck circuit 220 is connected in parallel with multiple electrical connectors to apply a stable voltage to the display motherboard 52 for pre-power-on processing. The time-sharing control circuit 230 is electrically connected to the rectifier-buck circuit 220 and can control the rectifier-buck circuit 220 to output different voltages at different times to pre-power on different modules of the display motherboard 52.

[0087] In related technologies, the display motherboard 52 includes different functional modules, and the preset voltage values ​​required by these modules may differ. When the display motherboard 52 receives an external voltage for pre-power-on processing, it continuously receives the maximum preset voltage value before transforming that voltage to power the different functional modules. However, this power supply method results in the display motherboard 52 continuously receiving the maximum preset voltage value, leading to high energy consumption and high testing costs during the pre-power-on process.

[0088] After receiving voltage from external power supply 51, the main control module 200 of this application first transforms and rectifies the voltage to reduce it to the preset voltage value of different functional modules, thereby supplying power to different functional modules of the main control module 200 and realizing segmented pre-power-on processing of different functional modules. This effectively reduces the total energy consumption required for the pre-power-on processing of the display motherboard 52 and reduces testing costs.

[0089] In some embodiments, the main control module 200 can provide 24V, 12V and 5V voltages to the display motherboard 52 respectively, thereby meeting the preset voltage requirements of each functional module in the display motherboard 52 and ensuring the testing efficiency of the display motherboard 52.

[0090] See Figure 1 and Figure 2 In this embodiment, the test fixture may also include multiple electrical connectors (not shown in the figure). These multiple electrical connectors correspond to multiple placement slots 130. One end of each electrical connector can extend into the working cavity 111 and be electrically connected to the main control module 200, while the other end can extend through a through-hole 116 into the placement slot 130 for electrical connection to the display motherboard 52 within the placement slot 130, thereby supplying power to the display motherboard 52.

[0091] In some embodiments, the electrical connector may be a cable to facilitate electrical connection and disconnection between the electrical connector and the display motherboard 52, thereby improving the operational efficiency of the staff.

[0092] See Figure 1 , Figure 2 and Figure 9 In this embodiment, the test fixture may further include a controller 300. The controller 300 is disposed on the outside of the base 110. The controller 300 includes a power switch 310 and control buttons 320. Both the power switch 310 and the control buttons 320 are electrically connected to the main control module 200. The power switch 310 is used to control the external power supply 51 to supply power to the main control module 200. The control buttons 320 are used to control the main control module 200 to supply power to the display motherboard 52.

[0093] Staff can use power switch 310 to cut off the power supply of external power 51 to the main control module 200, thereby enabling emergency shutdown of the test fixture and ensuring the safety and reliability of the test fixture.

[0094] In some embodiments, the controller 300 includes a plurality of control buttons 320. The plurality of control buttons 320 are respectively set to correspond to the number of the first placement group and the second placement group, so as to control the main control module 200 to supply power to the first placement group or the second placement group respectively.

[0095] In other embodiments, the controller 300 includes two control buttons 320, one of which corresponds to the first placement group so that the operator can control the main control module 200 to supply power to the multiple display motherboards 52 in the first placement group; the other control button 320 corresponds to the second placement group so that the operator can control the main control module 200 to supply power to the multiple display motherboards 52 in the second placement group.

[0096] In other embodiments, the controller 300 can also be electrically connected to the main control module 200 via a cable. The controller 300 can be detachably mounted on the placement rack 100 to facilitate the movement and operation of the controller 300 by the staff, thereby improving the operating efficiency of the testing fixture.

[0097] In some embodiments, the controller 300 may further include a control light 330. The control light 330 is configured to correspond to the control button 320. The control light 330 is used to indicate whether the main control module 200 is supplying power to the first placement group or the second placement group.

[0098] See Figure 1 , Figure 5 and Figure 6 In this embodiment, the test fixture may further include multiple status indicator light groups 400. The multiple status indicator light groups 400 are respectively disposed on the inner walls of multiple placement slots 130. All multiple status indicator light groups 400 are electrically connected to the main control module 200, so that the status indicator light groups 400 are used to switch colors according to the pre-power-on processing results of adjacent display motherboards 52.

[0099] After the main control module 200 is electrically connected to the display motherboard 52 via an electrical connector, it can also exchange information with the display motherboard 52 via the electrical connector, thereby obtaining fault information of the display motherboard 52.

[0100] In some embodiments, the status indicator light group 400 can be electrically connected to the main control module 200 via a cable passing through the perforation 116.

[0101] When the motherboard 52 is processing the pre-boot normally, the main control module 200 can control the status indicator light group 400 to continuously emit the first light.

[0102] When the mainboard 52 is pre-powering on to handle a fault, the main control module 200 can control the status indicator light group 400 to continuously emit a second light.

[0103] In other embodiments, the status indicator light group 400 includes a first LED, a second LED, and an LED control board. The first and second LEDs are electrically connected to the LED control board. The LED control board is electrically connected to the main control module 200 via a cable, so as to control the first LED to emit a first light or the second LED to emit a second light according to the electrical signal input from the main control module 200.

[0104] In other embodiments, the status indicator light group 400 may be provided with a support limiting structure.

[0105] In some embodiments, the status indicator light group 400 does not need to be disposed within the placement slot 130. The status indicator light group 400 can be disposed on the controller 300 and corresponding to multiple control buttons 320, so that the status indicator light group 400 can be used to indicate whether the first placement group or the second placement group is faulty.

[0106] In this embodiment, the test fixture may further include a movable frame (not shown in the figure). The movable frame is connected to the lower side of the placement frame 100 to support and move the placement frame 100, the main control module 200, and the electrical connectors, thereby improving the moving efficiency of the test fixture, increasing the applicability of the test fixture, and improving the utilization efficiency of the test fixture.

[0107] In some embodiments, the peripheral sidewall 114 of the movable frame may have a tool cavity. The tool cavity is used to accommodate tools to facilitate assembly, disassembly, testing and other operations by workers.

[0108] See Figures 1 to 10 This application provides a testing fixture. When an operator needs to monitor multiple display motherboards 52, the display motherboard 52 is first electrically connected to an electrical connector, and then the display motherboard 52 is placed in a placement slot 130, so that each of the multiple placement slots 130 contains a display motherboard 52. This allows the testing fixture to process multiple display motherboards 52 simultaneously, effectively improving the pre-boot processing efficiency of the display motherboards 52.

[0109] Subsequently, staff can sequentially control the main control module 200 to pre-power on multiple display motherboards 52 via power switch 310 and control buttons 320 through multiple electrical connectors. The main control module 200 can supply different voltage values ​​of power to the multiple display motherboards 52 in stages, thereby enabling the pre-power-on of each functional module within the display motherboards 52 in stages. This effectively reduces the energy consumption required for the pre-power-on of the display motherboards 52 and lowers testing costs.

[0110] The above embodiments are merely illustrative examples of structures. The structures in each embodiment are not fixed combinations. In the absence of structural conflicts, the structures in multiple embodiments can be arbitrarily combined and used.

[0111] Although this application has been described with reference to several embodiments, it should be understood that the terminology used is illustrative and exemplary, and not restrictive. This application can be implemented in many forms without departing from the spirit or essence of the invention; therefore, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Thus, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A test fixture for displaying a main board, characterized by, include: A placement rack has multiple placement slots spaced apart on it, the placement slots being used to accommodate the display motherboard; A main control module is connected to the placement rack and is used to be electrically connected to an external power source. Multiple electrical connectors are provided, each corresponding to a multiple placement slot. One end of each electrical connector is electrically connected to the main control module, and the other end of each electrical connector extends into the placement slot for electrical connection with the display motherboard. The main control module is configured to supply power to multiple display motherboards through multiple electrical connectors to enable pre-boot processing of the display motherboards.

2. The test fixture according to claim 1, characterized in that, The placement rack includes: a base and multiple partition plates; a working cavity is provided in the base for accommodating the main control module; the partition plates are located on the outside of the base; multiple partition plates are connected at intervals to at least one side wall of the base, and any two adjacent partition plates connected to the same side wall of the base and the base enclose a placement groove.

3. The testing fixture according to claim 2, characterized in that, The partition extends vertically; Some of the partition plates are disposed on the upper side wall of the base, so that the partition plates and the upper side wall of the base enclose and form a plurality of placement grooves; And / or, the lower sidewall of the base extends horizontally beyond the peripheral sidewall of the base, and the lower end of a portion of the partition plate is connected to the lower sidewall of the base, so that the plurality of partition plates and the lower sidewall of the base enclose and form a plurality of placement slots.

4. The testing fixture according to claim 2, characterized in that, The partition plate is provided with a clearance notch, which is located at the opening of the placement slot, and at least part of the display motherboard is exposed at the clearance notch.

5. The testing fixture according to claim 2, characterized in that, The base is provided with at least one heat dissipation hole, which is used to connect the working chamber to the outside. A cooling fan is installed inside the working chamber, and the cooling fan is arranged corresponding to the heat dissipation holes to realize the airflow circulation between the working chamber and the outside.

6. The test fixture according to claim 2, characterized in that, The test fixture also includes a controller, which is disposed on the outside of the base; The controller includes a power switch and control buttons. Both the power switch and the control buttons are electrically connected to the main control module. The power switch is used to control the external power supply to the main control module; the control buttons are used to control the main control module to supply power to the display motherboard.

7. The test fixture according to claim 2, characterized in that, The base has multiple through holes corresponding to the multiple placement slots, and the through holes are used for the electrical connectors to pass through. And / or, a status indicator light group is provided on the inner wall of each of the multiple placement slots, and the multiple status indicator light groups are electrically connected to the main control module so that the status indicator light groups are used to switch colors according to the pre-power-on processing results of the adjacent display motherboards.

8. The test fixture according to claim 1, characterized in that, The main control module includes a transformer circuit, a rectifier-buck circuit, and a time-division control circuit. The input terminal of the transformer circuit is electrically connected to an external power supply, and the output terminal of the transformer circuit is electrically connected to the rectifier-buck circuit. The rectifier-buck circuit is connected in parallel with multiple electrical connectors to apply a stable voltage to the display motherboard for pre-power-on processing. The time-division control circuit is electrically connected to the rectifier-buck circuit and can control the rectifier-buck circuit to output different voltages at different times to pre-power on different modules of the display motherboard.

9. The test fixture according to claim 1, characterized in that, The inner surface of the placement slot is provided with a protective layer, which is made of a flexible insulating material to flexibly support the display motherboard.

10. The test fixture according to claim 1, characterized in that, The testing fixture also includes a movable frame connected to the lower side of the placement frame for supporting and moving the placement frame, the main control module, and the electrical connectors.

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