Signal generator and testing device

Abstract

The utility model discloses a signal generator and a testing device, and belongs to the field of display panel testing. The signal generator comprises a box body and a plurality of PCBs. A plurality of open holes are formed in the box body at intervals, a plurality of sliding grooves are formed in the box body at intervals, the PCBs are inserted into the corresponding sliding grooves in a sliding mode, and the open holes and the corresponding sliding grooves are oppositely arranged so that the PCBs can be taken and placed through the corresponding open holes. According to the signal generator provided by the embodiment of the utility model, the maintenance and debugging of each PCB can be conveniently realized, and the disassembly of the box body and the disassembly and assembly of the PCBs layer by layer are not needed, so that the disassembly and assembly efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of display panel testing, and in particular relates to a signal generator and a testing device. Background Art

[0002] In the field of display panel production, it is necessary to perform a dot screen test on the display panel through a lighting detection device. The dot screen test stage is very important for the quality control of the display panel. In this stage, it can be detected whether the display panel has bad pixels, such as bright or dark pixels. The signal generator (PG for short) is the device used to perform a dot screen test on the display panel.

[0003] At present, multiple PCB boards are inserted into the box of the signal generator. The multiple circuit boards are stacked up and down and separated from each other by copper pillars. Therefore, when a circuit board needs to be maintained and debugged, it is necessary to first disassemble the box and disassemble the PCB boards layer by layer, resulting in low disassembly efficiency. Utility Model Content

[0004] In view of the above defects or improvement needs of the prior art, the utility model provides a signal generator and a test device, the purpose of which is to facilitate the maintenance and debugging of each PCB board without disassembling the box and disassembling and assembling the PCB boards layer by layer, thereby improving the disassembly and assembly efficiency.

[0005] In a first aspect, the utility model provides a signal generator, the signal generator comprising a box and a plurality of PCB boards;

[0006] The box body has a plurality of openings arranged at intervals, and the box body has a plurality of slide grooves arranged at intervals. Each PCB board can be slidably inserted in the corresponding slide groove, and each opening is arranged relative to the corresponding slide groove so that the PCB board can be taken and placed through the corresponding opening.

[0007] Optionally, the signal generator further comprises a plurality of sealing plates, each of which is detachably inserted into a corresponding opening and detachably connected to a corresponding PCB board.

[0008] Optionally, each of the openings has baffles arranged opposite to each other on its inner wall, each of the baffles has a threaded hole, each of the sealing plates is inserted with a plurality of bolts arranged at intervals, and each of the bolts is inserted in the corresponding threaded hole.

[0009] Optionally, each baffle includes a first plate body and a second plate body, the first plate body and the second plate body form an L-shaped structure, the first plate body is located on the inner wall of the opening and is perpendicular to the side plate of the box body, the second plate body is located in the box body and is opposite to the corresponding opening, the threaded hole is located on the corresponding second plate body, and the side edges and plate surfaces of each sealing plate are respectively attached to the first plate body and the second plate body.

[0010] Optionally, the signal generator also includes a support plate, which is fixed in the box and is spaced apart from two oppositely arranged side panels of the box, each of the slide grooves extends to the support plate, and a side of the support plate facing away from the slide groove has a core control board arranged in parallel, each of the PCB boards is electrically connected to the core control board, and the side panel of the box corresponding to the core control board is detachable and installed.

[0011] Optionally, the signal generator also includes a signal interface board, which is located in the box and fixed on the bottom plate of the box. The signal interface board is electrically connected to the core control board, and the signal interface board and the core control board are located on the same side of the support plate.

[0012] Optionally, at least one fan is provided on a side panel of the box body, and an air outlet of the fan is arranged opposite to the plurality of PCB boards.

[0013] Optionally, two oppositely arranged side panels of the box body are provided with through holes, and two oppositely arranged side panels of the box body are provided with fan covers on the outer sides, and the fan is located on the inner wall of one side panel of the box body.

[0014] Optionally, the plurality of PCB boards include a plurality of signal expansion boards and a plurality of power supply boards.

[0015] In a second aspect, the utility model provides a testing device, which includes a signal generator as described in the first aspect.

[0016] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0017] In general, compared with the prior art, the above technical solutions conceived by the utility model have the following beneficial effects:

[0018] For a signal generator provided in an embodiment of the utility model, since the box body has a plurality of openings arranged at intervals, a sealing plate is detachably inserted in each of the openings. At this time, the sealing plate can be used to seal the box body, thereby protecting and isolating the internal PCB board.

[0019] Furthermore, the box body is provided with a plurality of slide grooves arranged at intervals, and each PCB board can be slidably inserted in the corresponding slide groove and detachably connected to the corresponding sealing plate. When the corresponding PCB board needs to be removed, the sealing plate can be pulled outward, and the sealing plate drives the PCB board to slide out of the box body along the slide groove, and then the PCB board can be conveniently removed from the sealing plate without disassembling the box body and disassembling and installing the PCB board layer by layer. Similarly, when the corresponding PCB board needs to be installed, the PCB board is inserted into the slide groove, and the PCB board drives the sealing plate to seal the box body while sliding inward.

[0020] That is to say, the signal generator provided by the embodiment of the utility model can conveniently realize the maintenance and debugging of each PCB board without disassembling the box and disassembling and assembling the PCB boards layer by layer, thereby improving the disassembly and assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a first view of a structural schematic diagram of a signal generator provided by an embodiment of the utility model;

[0022] Figure 2 It is a second view of a structural schematic diagram of a signal generator provided by an embodiment of the utility model;

[0023] Figure 3 It is a partial enlarged view of the side panel provided by the embodiment of the utility model;

[0024] Figure 4 This is a first assembly schematic diagram of the support plate provided in an embodiment of the utility model;

[0025] Figure 5 This is a second assembly schematic diagram of the support plate provided in the embodiment of the utility model;

[0026] Figure 6 It is a structural schematic diagram of another signal generator provided by an embodiment of the utility model.

[0027] In all the drawings, the same reference numerals represent the same technical features, specifically:

[0028] 1. Box body; 11. Opening; 12. Sealing plate; 121. Bolt; 13. Slide groove; 14. Baffle; 141. First plate body; 142. Second plate body; 15. Bracket; 16. Top plate; 17. Bottom plate; 181. Front side plate; 182. Rear side plate; 183. Left side plate; 184. Right side plate; 19. Support frame; 2. PCB board; 21. Signal expansion board; 22. Power board; 3. Support board; 4. Core control board; 5. Signal interface board; 6. Fan; 7. Fan cover. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] Example:

[0035] Figure 1 is a first view of a structural schematic diagram of a signal generator provided by an embodiment of the utility model, Figure 1 is a second view of a structural schematic diagram of a signal generator provided by an embodiment of the utility model, combined with Figure 1 and Figure 2 As shown, the signal generator includes a box 1 and a plurality of PCB boards 2.

[0036] The box body 1 has a plurality of openings 11 arranged at intervals, and the box body 1 has a plurality of slide grooves 13 arranged at intervals. Each PCB board 2 can be slidably inserted in the corresponding slide groove 13, and each opening is arranged relative to the corresponding slide groove so that the PCB board can be taken and placed through the corresponding opening.

[0037] For a signal generator provided by an embodiment of the utility model, since the box body 1 has a plurality of openings 11 arranged at intervals, each opening is arranged relative to a corresponding slide slot, so that a PCB board can be taken and placed in the box body 1 through the corresponding opening.

[0038] Furthermore, the box body 1 has a plurality of slots 13 arranged at intervals, and each PCB board 2 can be slidably inserted in the corresponding slot 13. When the corresponding PCB board 2 needs to be removed, the PCB board 2 is pulled to slide along the slot 13 and slide out of the box body 1 through the corresponding opening 11, without the need to disassemble the box body 1 and disassemble and install the PCB board 2 layer by layer. Similarly, when the corresponding PCB board 2 needs to be installed, the PCB board 2 is inserted into the slot 13 through the opening 11.

[0039] That is to say, the signal generator provided by the embodiment of the utility model can conveniently realize the maintenance and debugging of each PCB board 2 without disassembling the box body 1 and disassembling and assembling the PCB boards 2 layer by layer, thereby improving the disassembly and assembly efficiency.

[0040] Exemplarily, the box body 1 includes a bottom plate 17, a top plate 16 and a plurality of side plates (i.e., a front side plate 181, a rear side plate 182, a left side plate 183 and a right side plate 184), which are surrounded to form a sealed structure, and a cavity is formed inside for accommodating a plurality of PCB boards 2. Among them, the opening 11 and the sealing plate 12 are located on the front side plate 181.

[0041] In this embodiment, the signal generator further includes a plurality of sealing plates 12, each of which is detachably inserted into a corresponding opening 11 and detachably connected to a corresponding PCB board 2. The sealing plates 12 are used to seal the box body, thereby protecting and isolating the internal PCB board 2.

[0042] For example, the number of PCB boards 2 is 5 or 6, which is not limited in the present invention and is determined according to design requirements. In addition, the sealing plate 12 has corresponding through holes, through which the sealing plate 12 is connected to the corresponding interface module on the corresponding PCB board 2.

[0043] Exemplarily, the PCB board 2 and the corresponding sealing board 12 are connected by screws.

[0044] Figure 3 It is a partial enlarged view of the side panel provided by the embodiment of the utility model, such as Figure 3 As shown, baffles 14 are arranged opposite to each other on the inner wall of each opening 11, each baffle 14 has a threaded hole, and each sealing plate 12 is inserted with a plurality of bolts 121 arranged at intervals, and each bolt 121 is inserted in a corresponding threaded hole.

[0045] In the above embodiment, the baffle 14 can provide an inner edge for the opening 11, so that a threaded hole is arranged inside the opening 11 to facilitate the fixing of the sealing plate 12 after insertion and prevent the sealing plate 12 from falling off.

[0046] Further, each baffle 14 includes a first plate body 141 and a second plate body 142, the first plate body 141 and the second plate body 142 form an L-shaped structure, the first plate body 141 is located on the inner wall of the opening 11 and is perpendicular to the side plate of the box body 1, the second plate body 142 is located in the box body 1 and is directly opposite to the corresponding opening 11, the threaded hole is located on the corresponding second plate body 142, and the side edge and plate surface of each sealing plate 12 are respectively attached to the first plate body 141 and the second plate body 142. Among them, the first plate body 141 plays the role of connecting the second plate body 142 and the side plate of the box body 1, and the second plate body 142 plays the role of arranging the threaded hole.

[0047] Exemplarily, when the sealing plate 12 is inserted into the opening 11 , the second plate body 142 on the inner side supports and positions the sealing plate 12 , and then the sealing plate 12 and the second plate body 142 are connected by bolts 121 .

[0048] In an implementation of the present invention, a plurality of openings 11 are arranged in parallel and at intervals, and each opening 11 is a strip-shaped structure and is parallel to the bottom plate 17 of the box body 1 .

[0049] It is easy to understand that the plurality of openings 11 are spaced in parallel and parallel to the bottom plate 17, so that the sealing plate 12 and the PCB board 2 corresponding to each opening 11 can be neatly arranged, easy to identify, and more beautiful.

[0050] Figure 4 This is a first assembly diagram of the support plate provided in the embodiment of the utility model. Figure 5 This is a second assembly diagram of the support plate provided by the embodiment of the utility model ( Figure 4 and Figure 5 relatively Figure 1 Remove the top plate 16 and the rear side plate 182), and combine Figure 4 and Figure 5 As shown, the signal generator also includes a support plate 3, which is fixed in the box body 1 and is spaced apart from the two oppositely arranged side plates of the box body 1. Each slide groove 13 extends to the support plate 3, and a side of the support plate 3 facing away from the slide groove 13 has a core control board 4 arranged in parallel, each PCB board 2 is electrically connected to the core control board 4, and the side plate of the box body 1 corresponding to the core control board 4 (i.e. Figure 1 The rear side plate 182) in the embodiment can be detachably installed.

[0051] In the above embodiment, the support plate 3 can not only limit the position of the PCB board 2, but also support the core control board 4, so as to facilitate the electrical connection between each PCB board 2 and the core control board 4. In addition, when the core control board 4 needs to be disassembled, only the rear side plate 182 is removed first, and then the core control board 4 is removed from the support plate 3.

[0052] It should be noted that the core control board 4 can generate corresponding control signals (eg, image signal source) and transmit them through the corresponding PCB board 2 .

[0053] For example, Figure 1 The front center side panel 181, the left side panel 183, the right side panel 184 and the bottom panel 17 are an integrated structure, while the rear side panel 182 and the top panel 16 are detachable structures. Through the detachable installation of the rear side panel 182 and the top panel 16, it is convenient to replace the core control panel 4, the signal interface panel 5 and the support panel 3.

[0054] Furthermore, the signal generator also includes a signal interface board 5, which is located in the box body 1 and fixed on the bottom plate 17 of the box body 1. The signal interface board 5 is electrically connected to the core control board 4, and the signal interface board 5 and the core control board 4 are located on the same side of the support plate 3.

[0055] Exemplarily, the rear side plate 182 has a plurality of through holes, through which the through holes are connected to the corresponding interface modules on the signal interface board 5. The interface modules on the signal interface board 5 may include a USB interface, a DP interface, an HDMI interface, a LAN port (network port), an RS485 serial port, an LED indicator, an IP dip switch or a debugging interface.

[0056] Exemplarily, the signal interface board 5 can receive the image signal data and control instructions output by the host computer through the LAN port (network port) and transmit them to the core control board, and the corresponding control instructions are generated by the core control board and input into the signal expansion board, DP interface, or HDMI interface; in another implementation, the image and control signal are directly generated by the core control board and transmitted to the DP interface or HDMI interface to output the corresponding point screen signal; or in other implementations, the image signal source and control signal are directly generated by the core control board and transmitted to the signal expansion board to output the corresponding V-BY-ONE point screen signal. This application does not make specific restrictions on this. In addition, exemplarily, the RS485 serial port and the debug interface can connect the debug signal.

[0057] In addition, each PCB board 2 and the core control board 4 as well as the core control board 4 and the signal interface board 5 can be electrically connected via a connector.

[0058] Exemplarily, the PCB board 2 and the signal interface board 5 are arranged horizontally, and the core control board 4 is arranged vertically.

[0059] In this embodiment, the box body 1 has multiple bracket groups, each bracket group has two brackets 15 arranged in parallel and spaced apart, each bracket 15 has multiple slide grooves 13, and both side edges of each PCB board 2 can be slidably inserted in the corresponding bracket group.

[0060] In the above embodiment, the bracket 15 plays the role of providing the slide groove 13, so there is no need to process the slide groove 13 on the inner wall of the box body 1, thereby greatly reducing the cost. In addition, the PCB board 2 is supported by two slide grooves 13, and the stability of the PCB board 2 is better.

[0061] Exemplarily, each bracket 15 has two spaced-apart slide slots 13. In addition, a support frame 19 is sandwiched between two brackets 15 to ensure the spacing between the two brackets 15 in the bracket group. The support frame 19 is located on the bottom plate 17 of the box body 1.

[0062] See again Figure 2 and Figure 3 At least one fan 6 is provided on the side plate of the box body 1, and the air outlet of the fan 6 is arranged opposite to the plurality of PCB boards 2. The fan 6 plays a role in cooling the PCB boards 2 to prevent the temperature from being too high during operation.

[0063] Exemplarily, there may be multiple fans 6 , which are respectively located on the left plate 183 and the right plate 184 , and one fan outlet of a group of fans facing the inside of the box 1 and the other fan outlet facing the outside of the box 1 .

[0064] Furthermore, two oppositely arranged side panels of the box body 1 have through holes, and the outer sides of the two oppositely arranged side panels of the box body 1 have fan covers 7, and the fan 6 is located on the inner wall of one side panel of the box body 1 (that is, the fan 6 and the fan cover 7 are respectively located on the inner and outer sides of the side panel).

[0065] It is easy to understand that the corresponding through holes on the two relatively arranged side panels respectively play the role of air intake and air outlet, ensuring smooth flow of airflow and improving cooling efficiency. In addition, the outer fan cover 7 plays the role of covering the through holes to avoid the influence of external debris when the fan 6 is working.

[0066] In this embodiment, the plurality of PCB boards 2 include a plurality of signal expansion boards 21 and a plurality of power boards 22. The signal expansion board can realize signal expansion transmission, and it, the core control board, and the signal interface board can all be regarded as signal modules; while the power board provides power and can be regarded as a power module. Each signal expansion board and each power board are inserted into the corresponding slide slot.

[0067] Exemplarily, the signal corresponding to the signal expansion board can be a V-BY-ONE signal, and multiple signal expansion boards can respectively realize the lighting of corresponding panels or realize the lighting of different areas on the same panel. In addition, the signal expansion board can feed back the synchronization of the signal to the core control board. The power board can be a power generation board, a power monitoring board, or a combination of a power generation board or a power monitoring board (i.e., combined into one circuit board).

[0068] In addition, a plurality of signal expansion boards 21 and a plurality of power supply boards 22 are arranged in layers (see Figure 6 ), multiple power boards can be located below or above multiple signal expansion boards, etc., and the present invention does not impose any restrictions on this.

[0069] Exemplarily, the box 1 can be divided into a first box and a second box respectively, wherein the first box is used to place a plurality of signal expansion boards 21 , and the second box is used to place a plurality of power boards 22 .

[0070] An embodiment of the utility model further provides a testing device, which includes a signal generator as described above.

[0071] It is easy for those skilled in the art to understand that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A signal generator, characterized in that: The signal generator comprises a box and a plurality of PCB boards; The box body has a plurality of openings arranged at intervals, and the box body has a plurality of slide grooves arranged at intervals. Each PCB board can be slidably inserted in the corresponding slide groove, and each opening is arranged relative to the corresponding slide groove so that the PCB board can be taken and placed through the corresponding opening.

2. A signal generator according to claim 1, characterized in that: The signal generator further comprises a plurality of sealing plates, each of which is detachably inserted into the corresponding opening and detachably connected to the corresponding PCB board.

3. A signal generator according to claim 2, characterized in that: The inner wall of each opening is provided with baffles arranged opposite to each other, each baffle has a threaded hole, each sealing plate is inserted with a plurality of bolts arranged at intervals, and each bolt is inserted in the corresponding threaded hole.

4. A signal generator according to claim 3, characterized in that: Each of the baffles includes a first plate body and a second plate body, the first plate body and the second plate body form an L-shaped structure, the first plate body is located on the inner wall of the opening and is perpendicular to the side plate of the box body, the second plate body is located in the box body and is opposite to the corresponding opening, the threaded hole is located on the corresponding second plate body, and the side edges and plate surfaces of each of the sealing plates are respectively attached to the first plate body and the second plate body.

5. A signal generator according to claim 1, characterized in that: The signal generator also includes a support plate, which is fixed in the box and spaced apart from two oppositely arranged side plates of the box. Each of the slide grooves extends to the support plate. A side of the support plate facing away from the slide groove has a core control board arranged in parallel. Each of the PCB boards is electrically connected to the core control board, and the side plate of the box corresponding to the core control board can be detachably installed.

6. A signal generator according to claim 5, characterized in that: The signal generator also includes a signal interface board, which is located in the box and fixed on the bottom plate of the box. The signal interface board is electrically connected to the core control board, and the signal interface board and the core control board are located on the same side of the support plate.

7. A signal generator according to any one of claims 1 to 6, characterized in that: At least one fan is disposed on the side plate of the box body, and an air outlet of the fan is arranged opposite to the plurality of PCB boards.

8. A signal generator according to claim 7, characterized in that: The two oppositely arranged side plates of the box body are both provided with through holes, and the outer sides of the two oppositely arranged side plates of the box body are both provided with fan covers, and the fan is located on the inner wall of one side plate of the box body.

9. A signal generator according to any one of claims 1 to 6, characterized in that: The multiple PCB boards include multiple signal expansion boards and multiple power boards.

10. A testing device, characterized in that: The testing device comprises a signal generator as described in any one of claims 1-9.

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