CN107481624B - Interface waterproof construction of LED display screen - Google Patents
Interface waterproof construction of LED display screen Download PDFInfo
- Publication number
- CN107481624B CN107481624B CN201710597740.1A CN201710597740A CN107481624B CN 107481624 B CN107481624 B CN 107481624B CN 201710597740 A CN201710597740 A CN 201710597740A CN 107481624 B CN107481624 B CN 107481624B
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- China
- Prior art keywords
- water
- retaining wall
- led display
- display screen
- box body
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/069—Other details of the casing, e.g. wall structure, passage for a connector, a cable, a shaft
Abstract
The invention relates to an interface waterproof structure of an LED display screen, which comprises: the water-retaining device comprises a box body, a water-retaining mechanism and a water-retaining mechanism, wherein the box body is provided with a pin header, a first water-retaining wall is formed on the periphery of the pin header of the box body, and a part of the first water-retaining wall extends and protrudes from the front surface of the box body; LED display module assembly and waterproof circle, LED display module assembly includes drain pan and PCB board, the drain pan is formed with the second manger plate enclosure in the position of first manger plate enclosure, and a part of second manger plate enclosure is followed the back of drain pan extends protrudingly, a part of first manger plate enclosure is inserted and is located in the second manger plate enclosure, first manger plate enclosure with one of two opposite faces of second manger plate enclosure is sunken to be formed with annular fixed slot, waterproof circle sets up in the annular fixed slot and is sticis in first manger plate enclosure with between the second manger plate enclosure. Above-mentioned LED display screen's interface waterproof construction, water-proof effects is good, the equipment is convenient.
Description
Technical Field
The invention relates to the technical field of LEDs, in particular to an interface waterproof structure of an LED display screen.
Background
The LED display screen is formed on an area display screen by utilizing a dot matrix module or a pixel unit formed by LED luminescent lamps, has the advantages of high brightness, low working voltage, low power consumption, long service life, stable performance and the like, and is widely applied to various occasions such as indoor and outdoor advertisements, sports, traffic, performances, exhibitions, leases, meetings and the like.
LED display screen generally includes LED screen display module and display screen box, current waterproof construction is including waterproof packing ring between LED screen display module and display screen box, pass through screw locking with the three, reach waterproof purpose with waterproof packing ring compression deformation, adopt this waterproof construction to cause the LED display screen unevenness easily, perhaps water-proof effects is not good, product waterproof performance is difficult to guarantee, and, need a plurality of screws of installation to compress tightly waterproof packing ring, its installation effectiveness is lower.
Disclosure of Invention
Therefore, the interface waterproof structure of the LED display screen is convenient to assemble, good in waterproof effect and free of influence on the flatness of the LED display screen.
An interface waterproof construction of LED display screen includes:
the water-retaining device comprises a box body, a water-retaining mechanism and a water-retaining mechanism, wherein the box body is provided with a pin header, a first water-retaining wall is formed on the periphery of the pin header of the box body, and a part of the first water-retaining wall extends and protrudes from the front surface of the box body;
the LED display module comprises a bottom shell fixed on the front side of the box body and a PCB fixed in the box body and electrically connected with the row needles, wherein a second water retaining wall is formed at the position of the first water retaining wall of the bottom shell, a part of the second water retaining wall extends and protrudes from the back surface of the bottom shell, a part of the first water retaining wall is inserted into the second water retaining wall, an annular fixing groove is formed in a concave mode of one of two opposite surfaces of the first water retaining wall and the second water retaining wall, and the waterproof ring is arranged in the annular fixing groove and is tightly pressed between the first water retaining wall and the second water retaining wall so as to seal a gap between the first water retaining wall and the second water retaining wall.
In one embodiment, the outer side wall of the first water-retaining wall is concavely provided with the annular fixing groove.
In one embodiment, the side of the waterproof ring away from the annular fixing groove is provided with an annular groove.
In one embodiment, the longitudinal section of the annular groove is a U-shaped longitudinal section.
In one embodiment, the longitudinal section of the annular fixing groove is a rectangle with a notch on one side, and the top surface and the bottom surface of the waterproof ring are planes parallel to each other.
In one embodiment, the second water-blocking wall is formed with an extension section extending and protruding from the back surface of the bottom case, and the extension section is spaced from the front surface of the box body.
In one embodiment, an annular step is formed at one end, close to the back surface of the bottom shell, of the outer wall of the first water retaining wall, and a step surface of one side, close to the annular fixing groove, of the annular step is an inclined surface so that the first water retaining wall can be conveniently inserted into the second water retaining wall.
In one embodiment, a tapered end is arranged on one side of the containing groove close to the back surface of the box body, and the width of the tapered end gradually decreases from the back surface to the front surface of the box body.
In one embodiment, the reducing end comprises a vertical section and a reducing section connected with the vertical section, the vertical section is close to the back surface of the box body, and the width of one end of the reducing section is equal to that of the vertical section.
In one embodiment, a plurality of first suction parts are arranged on the periphery of the bottom shell, a plurality of second suction parts corresponding to the first suction parts in a one-to-one manner are arranged on the periphery of the box body, and the bottom shell is fixed on the box body through magnetic adsorption between the first suction parts and the second suction parts.
Above-mentioned interface waterproof construction of LED display screen, box and drain pan are formed with first manger plate enclosure, the second manger plate enclosure that cup joints, and one of two enclosures is formed with the annular fixed slot of adaptation in waterproof circle, and two manger plate enclosures are formed with double-deck protective structure cover and establish outside row's needle, and waterproof circle is extruded between two manger plate enclosures, can prevent that the rainwater from getting into and contacting row's needle from the gap of two manger plate enclosures.
According to the interface waterproof structure of the LED display screen, the annular groove is formed in the surface, opposite to the second water retaining wall, of the waterproof ring, two layers of abutting ends with intervals are formed on the waterproof ring, and the abutting ends on the two sides are in elastic contact with the second water retaining wall, so that the waterproof reliability is enhanced.
Drawings
Fig. 1 is a schematic top view of an interface waterproof structure of an LED display screen according to an embodiment;
FIG. 2 is an enlarged cross-sectional view taken in the direction AA of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 2 rotated 90 degrees counterclockwise;
FIG. 4 is an enlarged view of portion C of FIG. 2;
FIG. 5 is an exploded view of the waterproof interface structure of the LED display screen of FIG. 1;
FIG. 6 is an enlarged schematic view of a waterproof ring in the waterproof structure of the interface of the LED display screen shown in FIG. 5;
FIG. 7 is an exploded cross-sectional view of the waterproof interface structure of the LED display screen shown in FIG. 1;
FIG. 8 is an enlarged view of portion D of FIG. 7;
fig. 9 is an enlarged schematic view of the waterproof ring of fig. 8.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, fig. 2, fig. 3, and fig. 5, an interface waterproof structure 10 of an LED display screen according to an embodiment includes a box 100, an LED display module, and a waterproof ring 500.
The box 100 is fixedly provided with a pin header 400, the box 100 is formed with a first water retaining wall 110 around the pin header 400, and a part of the first water retaining wall 110 extends and protrudes from the front surface of the box 100. The LED display module includes a bottom case 200 fixed on the front surface of the box 100 and a PCB 300 electrically connected to the pin header 400, the PCB 300 is located in the box 100 and located at one side of the back surface of the box 100, a second water-blocking enclosure 210 is formed at a corresponding position of the bottom case 200, the second water-blocking enclosure 210 extends from the back surface of the bottom case 200 to protrude, a portion of the first water-blocking enclosure 110 is inserted into the second water-blocking enclosure 210, one of two opposite surfaces of the first water-blocking enclosure 110 and the second water-blocking enclosure 210 is recessed to form an annular fixing groove 120, the waterproof ring 500 is disposed in the annular fixing groove 120, and the water-blocking enclosure is tightly pressed between the first water-blocking enclosure 110 and the second water-blocking enclosure 210 to seal a gap between the first water-blocking enclosure 110 and the second water-blocking enclosure 210. The outer cover of the pin header 400 is provided with two layers of water retaining enclosing walls, and the gap between the two water retaining enclosing walls is sealed by the waterproof ring 500, so that the whole waterproof effect is good.
Referring to fig. 1, 3, 7 and 8, the box 100 is provided with a through hole at an end of the pin header 400 inserted into the connector (not shown), so that the inserted end of the pin header 400 is exposed out of the box 100. Bottom shell 200 is the plastic part, and the front of bottom shell 200 is fixed with lamp plate 600, and bottom shell 200 all around edge is sealed with lamp plate 600, and the back of lamp plate 600 corresponds the position and is provided with row's mother 610 with row's needle 400 cooperation use, arranges needle 400 and passes behind the first waterproof enclosure and pegs graft with row's mother 610. The number of the LED display modules may be four, the four LED display modules are arranged on the box 100 two by two side to form a "tian" shape, and the box 100 is provided with a pin header 400 corresponding to each region of the LED display module.
In one embodiment, the outer sidewall of the first dam wall 110 is formed with a ring-shaped fixing groove 120, i.e. the opposite surface of the first dam wall 110 and the second dam wall 210 forms the ring-shaped fixing groove 120. The accommodating groove 130 which is adapted to the pin header 400 and inserted is formed in the first water retaining wall 110, the inserting groove 220 which is adapted to the first water retaining wall 110 and inserted is formed in the second water retaining wall 210, the first water retaining wall 110 and the second water retaining wall 210 are in clearance fit, the waterproof ring 500 is arranged in the annular fixing groove 120, one side of the waterproof ring 500 abuts against the side wall of the annular fixing groove 120, and the other side abuts against the inner wall of the second water retaining wall 210, so that the gap between the two water retaining walls is sealed.
Referring to fig. 3, 6 and 9, an annular groove 510 is formed on a side of the waterproof ring 500 away from the annular fixing groove 120, that is, an upper abutting end and a lower abutting end are formed on a side of the waterproof ring 500 opposite to an inner wall of the second water-blocking wall 210, so as to form a double-layer waterproof structure with an upper interval and a lower interval, so as to increase the reliability of the waterproof. In one embodiment, the annular groove of the water retaining wall has a U-shaped longitudinal section.
The longitudinal section of the annular fixing groove 120 is a rectangle with a gap on one side, the whole waterproof ring 500 is a hollow flat colloid, the top surface and the bottom surface of the waterproof ring 500 are planes parallel to each other, and the upper and lower abutting ends of the waterproof ring 500 are arc-shaped.
Referring to fig. 3 and 8, the second water blocking wall 210 is formed with an extending section 211 extending from the back of the bottom case 200, and the extending section 211 is spaced from the case 100. An annular step is formed at one end of the outer wall of the first water-retaining wall 110 close to the back of the bottom shell 200, and a step surface of one side of the annular step close to the annular fixing groove 120 is an inclined surface 111, that is, the thickness of one end of the first wall close to the bottom shell 200 is reduced and the inclined surface 111 is formed on the outer wall of the first wall, so that the first water-retaining wall 110 is inserted into the second water-retaining wall 210.
The tapered end 140 is disposed at a side of the receiving groove 130 close to the rear surface of the case 100, and the diameter of the tapered end 140 is gradually reduced from the rear surface to the front surface of the case 100. In a specific embodiment, the variable diameter end 140 includes a vertical section and a variable diameter section, the vertical section is close to the back of the box 100, the diameter of one end of the variable diameter section is equal to the diameter of the vertical section, and the diameter of the other end of the variable diameter end 140 is equal to the diameter of the side of the containing groove 130 close to the bottom case 200.
Referring to fig. 2 and 4, in an embodiment, a plurality of first suction members 230 are disposed around the bottom chassis 200, a plurality of second suction members (not shown) are disposed around the box body 100, and the positions of the plurality of first suction members 230 and the plurality of second suction members are in one-to-one correspondence. The edge around the bottom case 200 is formed with a step 240, the edge around the box 100 extends towards the front to form a support section 150, the support section 150 supports against the step surface of the step 240 at the edge of the base, so that the above-mentioned space is formed between the first suction member 230 and the second suction member, and the first suction member 230 and the second suction member form a suspension suction, that is, the first suction member 230 on the bottom case 200 is not in contact with the second suction member on the box 100, and the casing and the box 100 are in direct contact with the support section 150 through the step 240 at the edge. The suspended adsorption between the first adsorption part 230 and the second adsorption part can save the precision control between the two adsorption parts when the interface waterproof structure 10 of the LED display screen is assembled, effectively reduce the accumulated tolerance and reduce the difficulty of the precision control of the assembly and processing. The edge of the step 240 extends toward the front to form a rib, the rib abuts against the side of the PCB 300, and the side of the PCB 300 is hidden in the rib to prevent dust from entering.
The first suction piece 230 and the second suction piece both use permanent magnets, and the magnetic poles of the opposite surfaces of the first suction piece 230 and the second suction piece are opposite. The first adsorption member 230 may also be a magnet chuck, and the second adsorption member may be a magnet having a cross-sectional area slightly larger than that of the magnet chuck, which is further fixed to the bottom case 200 by means of a countersunk screw, and the magnet chuck is fixed to the front surface of the case 100 by means of a countersunk screw.
Above-mentioned interface waterproof construction of LED display screen, box and drain pan are formed with first manger plate enclosure, the second manger plate enclosure that cup joints, and one of two enclosures is formed with the annular fixed slot of adaptation in waterproof circle, and two manger plate enclosures are formed with double-deck protective structure cover and establish outside row's needle, and waterproof circle is extruded between two manger plate enclosures, can prevent that the rainwater from getting into and contacting row's needle from the gap of two manger plate enclosures.
According to the interface waterproof structure of the LED display screen, the annular groove is formed in the surface, opposite to the second water retaining wall, of the waterproof ring, two layers of abutting ends with intervals are formed on the waterproof ring, and the abutting ends on the two sides are in elastic contact with the second water retaining wall, so that the waterproof reliability is enhanced.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. The utility model provides a waterproof structure of interface of LED display screen which characterized in that includes:
the water-retaining device comprises a box body, a water-retaining mechanism and a water-retaining mechanism, wherein the box body is provided with a pin header, a first water-retaining wall is formed on the periphery of the pin header of the box body, and a part of the first water-retaining wall extends and protrudes from the front surface of the box body;
the LED display module comprises a bottom shell fixed on the front face of the box body and a PCB fixed in the box body and electrically connected with the pin header, a second water retaining wall is formed at the position of the first water retaining wall of the bottom shell, a part of the second water retaining wall extends and protrudes from the back face of the bottom shell, a part of the first water retaining wall is inserted into the second water retaining wall, one of two opposite faces of the first water retaining wall and the second water retaining wall is sunken to form an annular fixing groove, the waterproof ring is arranged in the annular fixing groove and is tightly pressed between the first water retaining wall and the second water retaining wall to seal a gap between the first water retaining wall and the second water retaining wall, and an extending section extending and protruding from the back face of the bottom shell is formed on the second water retaining wall, the extension section with the front of box has the interval, the relative face that the edge is close to all around to drain pan and box is hugged closely, the face that drain pan and box middle zone are relative is unsettled setting, thereby makes the waterproof structure of interface equipment is convenient, water-proof effects is good and can not influence the LED display screen roughness.
2. The interface waterproof structure of the LED display screen according to claim 1, wherein the outer sidewall of the first water-retaining wall is recessed to form the annular fixing groove.
3. The LED display screen interface waterproof structure of claim 1, wherein a side of the waterproof ring away from the annular fixing groove is formed with an annular groove.
4. The LED display screen interface waterproof structure of claim 3, wherein the longitudinal section of the annular groove is a U-shaped longitudinal section.
5. The waterproof interface structure for the LED display screen according to claim 1, wherein the longitudinal section of the annular fixing groove is a rectangle with a notch on one side, and the top surface and the bottom surface of the waterproof ring are planes parallel to each other.
6. The waterproof interface structure of the LED display screen of claim 1, wherein an annular step is formed at one end of the outer wall of the first water-retaining wall close to the back surface of the bottom casing, and a step surface of one side of the annular step close to the annular fixing groove is an inclined surface so that the first water-retaining wall can be inserted into the second water-retaining wall.
7. The waterproof interface structure of an LED display screen according to claim 1, wherein a receiving groove adapted to the pin header is formed in the first water-blocking wall, a tapered end is disposed on one side of the receiving groove close to the back of the box body, and the width of the tapered end gradually decreases from the back to the front of the box body.
8. The LED display screen interface waterproof structure of claim 7, wherein the reducing end comprises a vertical section and a reducing section connected with the vertical section, the vertical section is close to the back surface of the box body, and the width of one end of the reducing section is equal to that of the vertical section.
9. The LED display screen interface waterproof structure of claim 1, wherein a plurality of first suction pieces are arranged around the bottom case, a plurality of second suction pieces corresponding to the first suction pieces one to one are arranged around the box body, and the bottom case is fixed on the box body through magnetic attraction between the first suction pieces and the second suction pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710597740.1A CN107481624B (en) | 2017-07-20 | 2017-07-20 | Interface waterproof construction of LED display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710597740.1A CN107481624B (en) | 2017-07-20 | 2017-07-20 | Interface waterproof construction of LED display screen |
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| Publication Number | Publication Date |
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| CN107481624A CN107481624A (en) | 2017-12-15 |
| CN107481624B true CN107481624B (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710597740.1A Active CN107481624B (en) | 2017-07-20 | 2017-07-20 | Interface waterproof construction of LED display screen |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111145654A (en) * | 2019-12-17 | 2020-05-12 | 广州视源电子科技股份有限公司 | LED display screen module and LED display screen |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090060511A (en) * | 2007-12-10 | 2009-06-15 | 주식회사 반디라이트 | A led module for channel characters |
| CN203562151U (en) * | 2013-10-11 | 2014-04-23 | 深圳市丽晶光电科技股份有限公司 | Waterproof system for LED display screen module |
| CN204496862U (en) * | 2015-03-02 | 2015-07-22 | 深圳市蔷薇科技有限公司 | The full waterproof module of a kind of outdoor bar shaped high-resolution LED |
| CN104900159A (en) * | 2015-05-21 | 2015-09-09 | 深圳市艾比森光电股份有限公司 | Led display screen |
| CN206040141U (en) * | 2016-09-21 | 2017-03-22 | 深圳市科伦特科技有限公司 | Structure of waterproof LED display screen |
-
2017
- 2017-07-20 CN CN201710597740.1A patent/CN107481624B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090060511A (en) * | 2007-12-10 | 2009-06-15 | 주식회사 반디라이트 | A led module for channel characters |
| CN203562151U (en) * | 2013-10-11 | 2014-04-23 | 深圳市丽晶光电科技股份有限公司 | Waterproof system for LED display screen module |
| CN204496862U (en) * | 2015-03-02 | 2015-07-22 | 深圳市蔷薇科技有限公司 | The full waterproof module of a kind of outdoor bar shaped high-resolution LED |
| CN104900159A (en) * | 2015-05-21 | 2015-09-09 | 深圳市艾比森光电股份有限公司 | Led display screen |
| CN206040141U (en) * | 2016-09-21 | 2017-03-22 | 深圳市科伦特科技有限公司 | Structure of waterproof LED display screen |
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| CN107481624A (en) | 2017-12-15 |
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