CN212365399U - Display screen module positioning structure - Google Patents
Display screen module positioning structure Download PDFInfo
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- CN212365399U CN212365399U CN202020706622.7U CN202020706622U CN212365399U CN 212365399 U CN212365399 U CN 212365399U CN 202020706622 U CN202020706622 U CN 202020706622U CN 212365399 U CN212365399 U CN 212365399U
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Abstract
The application discloses display screen module location structure to the positioning accuracy problem of solving the display screen module, this display screen module location structure includes: one end of the first fixing device is connected with the back surface of the PCB of the display screen module; the second fixing device is matched with the first fixing device; a support structure comprising a through hole in which the first fixture is located; one end of the supporting structure is in contact with the back face of the PCB of the display screen module, and the head of the second fixing device tightly presses the supporting structure to enable the supporting structure to be perpendicular to the PCB; because the clearance between bearing structure's through-hole and the first fixing device for the slope of second fixed knot structure and first fixed knot structure can not influence bearing structure and PCB and keep perpendicular, thereby has improved positioning accuracy, and makes bearing structure's holding surface parallel with the PCB of display screen module, has guaranteed the level and smooth of support.
Description
Technical Field
The utility model relates to a LED display screen technical field, concretely relates to location structure of LED display screen module.
Background
With the rapid development of display technology, LED display screens have been widely used, and in recent years, the demand for small-pitch LED display screens has increased explosively, and higher requirements are made on the performance of LED display screens, such as resolution, contrast, color uniformity, and maximum brightness. Because LED display screen during operation calorific capacity is great, it is unsettled to pass through bearing structure with the back of pasting the PCB that is equipped with LED lamp pearl usually to strengthen heat-sinking capability, guarantee that the high luminance during operation PCB temperature can not be too high for a long time.
With the increasing demand of people, narrow-frame and frameless display screens are more and more popular, so that the positioning structure needs to be connected with the back surface of the PCB through soldering tin or glue, and the method cannot ensure the positioning precision generally. As shown in fig. 1a, the front surface of the PCB100 is provided with LED beads 110, and the back surface is provided with positioning grooves. The conventional positioning structure 200 is, for example, T-shaped, and includes a nut 210, a washer 230, and a screw 220, wherein an end of the nut 210 facing the PCB100 is provided with a protrusion matching with the positioning groove, and is connected to the PCB100 by soldering or glue. A washer 230 is provided on the other end of the nut 210, and the screw 220 is screwed into the nut 210 so that the screw 220 and the nut 210 clamp the washer 230. As shown in fig. 1b, since the nut 210 is connected to the PCB100 by solder or glue, the nut 210 and the PCB100 cannot be perpendicular to each other (the included angle is 90 °), the included angle between the nut 210 and the PCB100 may be changed due to the non-uniformity of the solder or glue, so that the gasket 230, the nut 210 and the screw 220 are inclined together, which results in insufficient positioning accuracy, affects the positioning accuracy and the flatness of the display screen module, and further affects the display effect of the display screen, and causes the problems of color uniformity of the display screen, such as deterioration.
Therefore, in order to ensure the display quality of the display screen, it is an urgent problem to design a positioning structure capable of improving the positioning accuracy of the display screen module.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, an object of the utility model is to provide a display screen module location structure, through the optimization to bearing structure for under the PCB complete vertically condition of unable first fixing device of assurance and display screen module, still can keep bearing structure and the PCB's of display screen module perpendicular, thereby avoided because of the inaccurate and poor problem of display screen module roughness of location that first fixing device and second fixing device's slope leads to.
In order to achieve the above object, the utility model provides a display screen module location structure, a serial communication port, include: one end of the first fixing device is connected with the back surface of the PCB of the display screen module; the second fixing device is matched with the first fixing device; a support structure comprising a through hole in which the first fixture is located; one end of the supporting structure is in contact with the back face of the PCB of the display screen module, and the head of the second fixing device presses the supporting structure tightly, so that the supporting structure is perpendicular to the PCB.
Preferably, the first fixing means and the support structure are separate from each other.
Preferably, there is a gap between the first fixing means and a side wall of the through hole of the support structure.
Preferably, the gap between the first fixing means and the side wall of the through hole of the support structure is 0.3mm to 3 mm.
Preferably, the through hole of the support structure is provided with a first step at the other end of the support structure, and the size of the first step is matched with the size of the head of the second fixing device.
Preferably, the height of the head of the second fixture is no greater than the depth of the first step.
Preferably, the depth of the first step is 0.4mm to 2 mm.
Preferably, the diameter of the head of the second fixation means is larger than the diameter of the first fixation means, and the diameter of the head of the second fixation means is larger than the diameter of the through hole of the support structure.
Preferably, the first fixing device is connected to the back surface of the PCB by any one of soldering tin and glue.
Preferably, the support structure is any one of a cylinder, a truncated cone, a prism and a truncated pyramid.
Preferably, the first fixing means comprises a nut and the second fixing means comprises a screw.
Preferably, the support structure comprises a spacer.
Preferably, the height of the support structure is not less than the height of the body of the nut.
Preferably, one end of the nut is further provided with a protrusion, and the protrusion is matched with the groove on the back of the PCB.
Preferably, one end of the nut is further provided with a support plate extending horizontally outward to increase a contact area of the nut with the rear surface of the PCB.
Preferably, the size of the supporting plate is larger than that of the through hole, the through hole is provided with a second step on the inner side of one end of the supporting plate, and the size of the second step is matched with that of the supporting plate so as to avoid the supporting plate.
Preferably, the display screen module positioning structures are multiple and are uniformly distributed on the back of the PCB of the display screen module.
Preferably, the positioning structure is located between the display screen module and the box body, and the display screen module and the box body are positioned through the positioning structure.
The utility model provides a display screen module location structure, bearing structure among this display screen module location structure adopts metal material to make, the terminal surface of bearing structure both sides is parallel to each other, after second fixing device's head compressed tightly this bearing structure, because there is the clearance between bearing structure's through-hole and the first fixing device, make the slope of second fixed knot structure and first fixed knot structure can not influence bearing structure and PCB and keep perpendicular, thereby the accuracy of location has been guaranteed, and guarantee bearing structure's holding surface and the PCB's of display screen module parallel, the level and smooth of support has been guaranteed. Furthermore, all parts in the display screen module positioning structure are easy to process, and the cost is low, so that the display screen module positioning structure is easy to realize.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
FIG. 1a is a schematic diagram of a display module and a positioning structure in the prior art;
FIG. 1b is a schematic view illustrating a positioning structure of a display module according to the prior art when the positioning structure is tilted;
fig. 2 is a schematic view of a display screen module positioning structure and a display screen module according to a first embodiment of the present invention;
fig. 3 is a schematic view of a supporting structure of a positioning structure of a display screen module according to a first embodiment of the present invention;
fig. 4 is a cross-sectional view of a supporting structure of a positioning structure of a display screen module according to a first embodiment of the present invention;
fig. 5a and 5b are schematic enlarged partial views of a positioning structure of a display screen module according to a first embodiment of the present invention;
fig. 6 is a schematic view of a supporting structure of a positioning structure of a display screen module according to a second embodiment of the present invention;
fig. 7 is a cross-sectional view of a supporting structure of a positioning structure of a display screen module according to a second embodiment of the present invention;
fig. 8a and 8b are schematic enlarged partial views of a display screen module positioning structure according to a second embodiment of the present invention.
Fig. 9a and 9b are schematic enlarged partial views of a display screen module positioning structure according to a third embodiment of the present invention.
Detailed Description
Various embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Like elements in the various figures are denoted by the same or similar reference numerals. For purposes of clarity, the various features in the drawings are not necessarily drawn to scale.
The present invention is not limited to these embodiments. In the following detailed description of the present invention, certain specific details are set forth in detail. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, and procedures have not been described in detail so as not to obscure the present invention.
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples.
Fig. 2 is the utility model discloses the display screen module location structure of first embodiment and the schematic diagram of display screen module, as shown in fig. 2, the back of the PCB100 of display screen module is provided with a plurality of display screen module location structures 300, specifically, is provided with 6 display screen module location structures 300 at the back border region of PCB100, and 6 display screen module location structures 300 are the rectangular array of two rows of three rows and arrange, provide support and location for the PCB100 of display screen module.
Fig. 3 and fig. 4 are a schematic view and a cross-sectional view of a supporting structure of a display screen module positioning structure according to a first embodiment of the present invention, and it can be seen from fig. 2 that the supporting structure is, for example, a gasket 330, the gasket 330 is, for example, cylindrical, a through hole 331 is disposed at a middle position of the gasket 330, a step 332 is disposed at one end of the through hole 331, as can be seen from fig. 4, a cavity with a T-shaped cross section is formed in the gasket 330 by the through hole 331 and the step 332, and a depth of the step 332 is h. The gasket 330 is made of a metal material such as aluminum.
Fig. 5a is a schematic partial enlarged view illustrating a positioning structure of a display screen module according to a first embodiment of the present invention, wherein a first fixing device of the positioning structure 300 includes a nut 310, for example, and a second fixing device includes a screw 320, for example; one end of the nut 310 is provided with a protrusion to match with a groove of the rear surface of the PCB100 for positioning. The front of the PCB100 is provided with LED lamp beads 110. The nut 310 is connected to the back surface of the PCB100 by an adhesive material 120, and the adhesive material 120 includes, for example, solder, glue, and the like. The other end of the nut 310 is provided with a threaded hole that matches the screw 320. After the nut 310 and the PCB100 are connected by the uniformly coated adhesive material 120, the gasket 330 is placed, the diameter of the gasket 330 at the through hole 331 is larger than the outer diameter of the nut 310, so that the nut 310 is located in the through hole 331 of the gasket 330, and a gap, for example, 0.3mm to 3mm, is formed between the outer wall of the nut 310 and the inner wall of the gasket 330 at the through hole 331, so as to avoid that the inclination of the nut 310 causes the angle of the gasket 330 to be affected by the nut 310; the screw 320 is then screwed into the nut 310. The end of the washer 330 adjacent to the screw 320 is provided with a step 332, and the step 332 is used for receiving the head of the screw 320. The diameter of the step 332 is larger than that of the through hole 331, the diameter of the head of the screw 320 is between the diameter of the through hole 331 and the diameter of the step 332, and the screw 320 is pressed against the step surface of the step 332 by screwing the screw 320, thereby pressing the gasket 330. In order to prevent the head of the screw 320 from protruding out of the other end of the washer 330, the depth of the step 332 is not less than the height of the head of the screw 320. The depth h of the step 332 is, for example, 0.4mm to 2 mm. The end face of one end of the spacer 330 is attached to the back of the PCB100, and the end face of the other end is parallel to the PCB100, i.e. the spacer 330 is perpendicular to the PCB100, so as to provide support for the PCB100, thereby ensuring that the spacer 330 can be used for accurate positioning. Specifically, the outer diameter of the nut 310 is, for example, 4mm, the diameter of the through hole 331 is 5.5mm, and the unilateral clearance between the outer wall of the nut 310 and the side wall of the through hole 331 is 0.75 mm. Of course, the first fixing device may also be a bayonet, and the second fixing device may be a buckle matched with the first fixing device.
When the adhesive material 120 is not uniformly applied, as shown in fig. 5b, the nut 310 cannot be guaranteed to be perpendicular to the PCB100, and in this case, since the diameter of the spacer 330 at the through hole 331 is greater than the outer diameter of the nut 310, the inclined nut 310 may be disposed in the through hole 331 of the spacer 330 without coming into contact with the spacer 330. When the washer 330 is fixed by tightening the screw 320, although the screw 320 is inclined similarly to the nut 310, the head of the screw 320 is pressed against the step surface of the step 332 to fix the washer 330 without inclining the washer 330 similarly. Although the step surface is not uniformly pressed, the fixing of the spacer 330 is not affected and the spacer 330 is maintained perpendicular to the PCB100, thereby ensuring the accuracy of the positioning of the spacer 330. .
Fig. 6 and fig. 7 show schematic diagram and cross-sectional view of the spacer of the display screen module positioning structure according to the second embodiment of the present invention, comparing with the spacer 430 in the first embodiment, the spacer 430 in the second embodiment is also, for example, cylindrical and has a through hole 431 and a first step 432, and a second step 433 is further disposed on one side of the through hole 431 facing the PCB, the diameter of the side wall of the second step 433 is greater than the diameter of the through hole 431, the depth h of the first step 432 is also greater than the height of the head of the screw 420, the depth h of the first step is, for example, 0.4mm-2mm, and the end faces at both ends of the spacer are used for providing support.
Fig. 8a and 8b show the enlarged schematic view of the part of the display screen module positioning structure of the second embodiment of the present invention, the nut 410 is provided with a protrusion for positioning toward one end of the PCB100, and is further provided with a supporting plate 411, the supporting plate 411 is designed for example as an integral with the nut 410, the outer diameter of the supporting plate 411 is larger than the outer diameter of the nut 410, the contact area between the nut 410 and the PCB100 can be increased by setting the supporting plate 411, and the nut 410 is more easily arranged perpendicular to the PCB. The support plate 411 is connected to the rear surface of the PCB100 by the adhesive material 120. The end of the spacer 430 provided with the second step 433 is fitted over the nut 410 toward the PCB100, and an escape space is provided for the support plate 411 by the second step 433, so that the nut 410 is located in the through hole 431 and the second step 433 of the spacer 430. Similarly, when the adhesive material 120 is not uniformly applied, as shown in fig. 8b, the nut 410 is tilted, and accordingly, the screw 420 screwed into the nut 410 is tilted, but the head of the screw 420 is pressed against the step surface of the first step 432 to fix the gasket 430 without the gasket 430 being tilted as well. Although the step surface is not uniformly pressed, the fixing of the spacer 430 is not affected and the spacer 430 is kept perpendicular to the PCB100, thereby ensuring the accuracy of the positioning of the spacer 430.
Further, the pad 430 may also have other shapes besides the cylindrical shape, such as a truncated cone shape, a prism shape, a truncated pyramid shape, and the like, and it may also be used to support the PCB back of the display screen module, thereby ensuring the flatness of the display screen module.
In general, the nut is fixed to the back surface of the PCB by solder or glue, the solder or glue is not self-uniform (it is impossible to ensure a smooth and uniform distribution) when the solder or glue is in a liquid state, and the final cured state is determined by an external force, so the nut often tilts. However, the utility model discloses a gasket among the location structure for the face of atress (providing the support) is the terminal surface of gasket both sides to have the space between the inner wall of gasket and the nut, so can not receive the influence of nut slope, thereby guaranteed the accuracy of location.
Fig. 9a and 9b are the enlarged schematic view of the part of the display screen module positioning structure according to the third embodiment of the present invention, and it can be seen from the figure that this gasket 530 is cylindrical, the middle of which is provided with a through hole 531, a gap is provided between the sidewall of the through hole 531 and the outer sidewall of the nut 510, and this gasket 530 can also ensure that the gasket 530 does not receive the influence of nut inclination through the cooperation with the PCB100 and the box, thereby ensuring the accuracy of positioning.
To sum up, the embodiment of the utility model has following advantage or beneficial effect: the utility model provides a display screen module location structure, the terminal surface of bearing structure both sides is parallel to each other, and after second fixing device's head compressed tightly this bearing structure, because have the space between this bearing structure's inner wall and first fixing device's the outer wall for second fixing device and first fixing device's slope can not influence bearing structure and PCB and keep perpendicular, thereby has guaranteed the accuracy of location and the level and smooth of support. Furthermore, all parts in the display screen module positioning structure are easy to process, and the cost is low, so that the display screen module positioning structure is easy to realize.
It should be noted that, in the description of the present invention, the terms "first" and "second" are only used for convenience in describing different components, and are not to be construed as indicating or implying a sequential relationship, relative importance or implicitly indicating the number of technical features indicated.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (18)
1. The utility model provides a display screen module location structure which characterized in that includes:
one end of the first fixing device is connected with the back surface of the PCB of the display screen module;
the second fixing device is matched with the first fixing device;
a support structure comprising a through hole in which the first fixture is located;
one end of the supporting structure is in contact with the back face of the PCB of the display screen module, and the head of the second fixing device presses the supporting structure tightly, so that the supporting structure is perpendicular to the PCB.
2. The display screen module positioning structure of claim 1, wherein the first fixing device and the support structure are separated from each other.
3. The display screen module positioning structure of claim 1, wherein a gap is formed between the first fixing device and a sidewall of the through hole of the support structure.
4. The display screen module positioning structure of claim 3, wherein a gap between the first fixing device and the side wall of the through hole of the support structure is 0.3mm to 3 mm.
5. The display screen module positioning structure according to claim 1, wherein the through hole of the support structure is provided with a first step at the other end of the support structure, and the size of the first step matches with the size of the head of the second fixing device.
6. The display screen module positioning structure of claim 5, wherein the height of the head of the second fixing device is not greater than the depth of the first step.
7. The display screen module positioning structure of claim 5, wherein the depth of the first step is 0.4mm to 2 mm.
8. The display screen module positioning structure of claim 1, wherein the diameter of the head of the second fixing device is larger than the diameter of the first fixing device, and the diameter of the head of the second fixing device is larger than the diameter of the through hole of the support structure.
9. The display screen module positioning structure of claim 1, wherein the first fixing device is connected to the back surface of the PCB by any one of solder and glue.
10. The display screen module positioning structure according to claim 1, wherein the support structure is any one of a cylinder, a truncated cone, a prism and a truncated pyramid.
11. The display screen module positioning structure of claim 1, wherein the first fixing device comprises a nut and the second fixing device comprises a screw.
12. The display screen module positioning structure of claim 1, wherein the support structure comprises a gasket.
13. The display screen module positioning structure of claim 11, wherein the height of the support structure is not less than the height of the main body of the nut.
14. The display screen module positioning structure of claim 11, wherein one end of the nut is further provided with a protrusion, and the protrusion is matched with the groove on the back of the PCB.
15. The display screen module positioning structure of claim 11, wherein one end of the nut is further provided with a support plate extending horizontally outwards to increase the contact area of the nut with the back surface of the PCB.
16. The display screen module positioning structure of claim 15, wherein the size of the supporting plate is larger than that of the through hole, the through hole is further provided with a second step at the inner side of one end of the supporting plate, and the size of the second step is matched with that of the supporting plate so as to avoid the supporting plate.
17. The display screen module positioning structure according to claim 1, wherein the number of the display screen module positioning structures is plural, and the plural display screen module positioning structures are uniformly arranged on the back surface of the PCB of the display screen module.
18. The display screen module positioning structure according to claim 1, wherein the positioning structure is located between the display screen module and the box body, and the display screen module and the box body are positioned by the positioning structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020706622.7U CN212365399U (en) | 2020-04-30 | 2020-04-30 | Display screen module positioning structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020706622.7U CN212365399U (en) | 2020-04-30 | 2020-04-30 | Display screen module positioning structure |
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| CN212365399U true CN212365399U (en) | 2021-01-15 |
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| CN202020706622.7U Active CN212365399U (en) | 2020-04-30 | 2020-04-30 | Display screen module positioning structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112930070A (en) * | 2021-01-21 | 2021-06-08 | 北京字节跳动网络技术有限公司 | Electronic device |
| CN114380511A (en) * | 2022-01-22 | 2022-04-22 | 东莞市瑞立达玻璃盖板科技股份有限公司 | AF (automatic frequency) coating process for touch display screen module |
-
2020
- 2020-04-30 CN CN202020706622.7U patent/CN212365399U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112930070A (en) * | 2021-01-21 | 2021-06-08 | 北京字节跳动网络技术有限公司 | Electronic device |
| CN114380511A (en) * | 2022-01-22 | 2022-04-22 | 东莞市瑞立达玻璃盖板科技股份有限公司 | AF (automatic frequency) coating process for touch display screen module |
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