Waterproof pixel point lamp
By using transparent top and bottom covers ultrasonically welded together to form the outer shell of the LED pixel light, and combining it with a limiting ring, a raised ring, and a wire groove structure, the problem of glue seepage in the gaps is solved, achieving better waterproof performance and light transmission.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-03-06
AI Technical Summary
During the encapsulation process, glue can easily seep into the gaps of existing LED pixel lights, affecting the light output and resulting in insufficient waterproof performance.
The outer shell is formed by ultrasonic welding of a transparent front cover and a bottom cover. Combined with a limiting ring, a raised ring and a wire channel structure, it ensures the sealing of the PCBA board and cables. Overflow holes and grooves are used to collect overflow glue, forming a multi-layer sealing structure.
The waterproof performance of the pixel lamps has been improved, ensuring the light transmittance of the light-emitting surface, preventing glue from blocking the light, and enhancing the sealing effect.
Smart Images
Figure CN223975890U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pixel lamp technology, and in particular to a waterproof pixel lamp. Background Technology
[0002] LED pixel lights are a lighting or display technology. These lights consist of multiple independently controllable pixels, which can display text, patterns, or dynamic effects through color mixing and arrangement, and can replace some displays.
[0003] LED pixel lights mainly consist of a light board, a bottom shell, and a light-transmitting cover. The light board is installed between the bottom shell and the cover, and the cable extends out from the cable holes in the bottom shell and the cover. The light board is directly set in the inner cavity of the cover, and there is a gap between the light board and the cover. During the potting process, because this gap is connected to the potting cavity, glue can easily seep into the gap between the cover and the light board, affecting the light output effect. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a waterproof pixel lamp.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] The waterproof pixel lamp of this utility model includes a front cover, a PCBA board, and a bottom cover; the front cover is made of transparent material; the front cover and the bottom cover are connected and fixed to form an outer shell; the PCBA board is disposed inside the outer shell; the front cover and the bottom cover are fixed to form the outer shell by ultrasonic welding; cables are disposed on the PCBA board; the outer shell is provided with wire passage holes that match the cables; the cables extend to the outside of the outer shell; the bottom of the bottom cover is provided with an overflow hole and a potting hole.
[0007] Furthermore, the faceplate is provided with an outer limiting ring; the PCBA board matches the inner hole of the outer limiting ring; the bottom cover is provided with a pressing platform; the pressing platform presses the PCBA board into the interior of the outer limiting ring; the light-emitting surface of the PCBA board is positioned away from the bottom cover.
[0008] Furthermore, the cover is provided with an inner convex ring; the inner convex ring is located inside the outer limiting ring; the height of the outer limiting ring is higher than the height of the inner convex ring; the surface of the PCBA board is attached to the end face of the inner convex ring.
[0009] Furthermore, the cable is disposed on the end face of the PCBA board away from the inner convex ring.
[0010] Furthermore, the face cover is provided with a positioning block; the bottom cover is provided with a positioning groove that matches the positioning block; the positioning block is embedded in the positioning groove; the positioning block is provided with a first wire-passing groove; the positioning groove is provided with a second wire-passing groove; after the face cover and the bottom cover are fixed, the second wire-passing groove and the first wire-passing groove are combined to form the wire-passing hole; a second raised line is provided inside the second wire-passing groove; a first raised line is provided inside the first wire-passing groove; the first raised line and the second raised line are combined to form an annular protrusion that surrounds the cable.
[0011] Furthermore, the bottom cover is provided with an overflow hole.
[0012] Furthermore, the cross-sections of the first and second raised lines are both V-shaped; the widths of the first and second raised lines gradually decrease along the direction closer to the cable.
[0013] Furthermore, the outer surface of the bottom cover is provided with a first overflow concave ring and a second overflow groove; the first overflow concave ring is sleeved outside the overflow hole; the first overflow concave ring is coaxially arranged with the overflow hole; the second overflow groove is used to collect the glue overflowing from the glue filling hole.
[0014] Furthermore, there are two overflow holes; the two overflow holes are respectively located on both sides of the glue filling hole.
[0015] Furthermore, two buckles are fixed on the surface of the bottom cover away from the top cover; the two buckles are arranged back to back.
[0016] With the above structure, the beneficial effects of this utility model are as follows: after the PCBA board is embedded into the outer limiting ring, the PCBA board is positioned, and through the sealing line formed between the PCBA board and the inner sidewall of the outer limiting ring, it is difficult for glue to enter the light-emitting surface of the PCBA board, so that the light emission of the PCBA board will not be blocked by glue, thus ensuring the light transmission capability of the pixel lamp. Attached Figure Description
[0017] Figure 1 This is a first-person exploded view of this utility model;
[0018] Figure 2 This is a second-view exploded view of this utility model;
[0019] Figure 3 This is a structural diagram of the faceplate;
[0020] Figure 4 This is a first-person exploded view of the bottom cover;
[0021] Figure 5 This is a second-person exploded view of the bottom cover;
[0022] Explanation of reference numerals in the attached figures:
[0023] 1. Top cover; 101. Outer limiting ring; 102. Positioning block; 10201. First raised line; 10202. First wire guide groove; 103. Inner raised ring; 104. Stitching line; 2. PCBA board; 201. Cable; 3. Bottom cover; 301. Buckle; 302. Positioning groove; 303. Glue overflow hole; 304. First glue overflow concave ring; 305. Second glue overflow groove; 306. Glue filling hole; 307. Pressing table; 308. Second wire guide groove; 30801. Second raised line. Detailed Implementation
[0024] The present invention will be further described below with reference to the accompanying drawings.
[0025] like Figures 1 to 5 As shown, the waterproof pixel lamp of this utility model includes a front cover 1, a PCBA board 2, and a bottom cover 3; the front cover 1 is made of transparent material; the front cover 1 and the bottom cover 3 are connected and fixed to form an outer shell; the PCBA board 2 is disposed inside the outer shell;
[0026] The front cover 1 and the bottom cover 3 are fixed together by ultrasonic welding to form an outer shell; a cable 201 is provided on the PCBA board 2; a cable passage hole matching the cable 201 is provided on the outer shell; the cable 201 extends to the outside of the outer shell; an overflow hole 303 and a potting hole 306 are provided at the bottom of the bottom cover 3.
[0027] Both sides of the surface of the face cover 1 are provided with stitching lines 104; the stitching lines 104 are used to fit and position the face cover 1 on the bottom cover 3, and make the face cover 1 and the bottom cover 3 fit together seamlessly, so that the welded position is more airtight.
[0028] After the PCBA board 2 is installed inside the housing, the cable 201 extends out from the cable hole. Then, the connection between the front cover 1 and the bottom cover 3 is fixed by ultrasonic stitching. Sealant is injected into the housing through the glue injection hole 306. The gas in the housing is discharged through the glue overflow hole 303, so that the housing is filled with sealant. In this structure, ultrasonic waves are used to bond the housing together, which has high molding efficiency. Moreover, the PCBA board 2 is sealed inside the housing by glue injection, which improves the waterproof effect.
[0029] In a preferred embodiment of this utility model, the face cover 1 is provided with an outer limiting ring 101; the PCBA board 2 matches the inner hole of the outer limiting ring 101; the bottom cover 3 is provided with a pressing platform 307; the pressing platform 307 presses the PCBA board 2 into the interior of the outer limiting ring 101; the light-emitting surface of the PCBA board 2 is positioned away from the bottom cover 3.
[0030] After the PCBA board 2 is pressed by the clamping table 307, the PCBA board 2 is positioned inside the outer limiting ring 101; the sealant is injected from the injection hole 306 onto the side of the PCBA board 2 away from the light-emitting surface, and the sealant seals the outer limiting ring 101 and the surface of the PCBA board 2.
[0031] In a preferred embodiment of this utility model, the faceplate 1 is provided with an inner convex ring 103; the inner convex ring 103 is disposed inside the outer limiting ring 101; the height of the outer limiting ring 101 is higher than the height of the inner convex ring 103; the surface of the PCBA board 2 is attached to the end face of the inner convex ring 103.
[0032] After the PCBA board 2 is embedded into the outer limiting ring 101, the inner convex ring 103 supports the PCBA board 2, so that there is a certain distance between the light-emitting surface of the PCBA board 2 and the light-emitting surface of the cover 1. Moreover, after the PCBA board 2 is attached to the inner convex ring 103, a sealing line is formed. When the glue is poured, when the glue enters from the annular gap between the PCBA board 2 and the outer limiting ring 101 into the gap between the outer limiting ring 101 and the inner convex ring 103, the glue further compresses the air inside the inner convex ring 103, which increases the air pressure inside the inner cavity of the inner convex ring 103. This makes it difficult for glue to enter the inner cavity of the inner convex ring 103, so that the light emission of the PCBA board 2 is not blocked by the glue, thus ensuring the light transmission capability of the pixel lamp.
[0033] In a preferred embodiment of this utility model, the cable 201 is disposed on the end face of the PCBA board 2 away from the inner convex ring 103; the height difference between the end face of the inner convex ring 103 and the end face of the outer limiting ring 101 is just equal to the thickness of the PCBA board 2, and the cable 201 can be horizontally extended after the outer limiting ring 101 is embedded in the PCBA board 2.
[0034] In a preferred embodiment of this utility model, the face cover 1 is provided with a positioning block 102; the bottom cover 3 is provided with a positioning groove 302 that matches the positioning block 102; the positioning block 102 is embedded in the positioning groove 302; the positioning block 102 is provided with a first wire-passing groove 10202; the positioning groove 302 is provided with a second wire-passing groove 308; after the face cover 1 and the bottom cover 3 are fixed, the second wire-passing groove 308 and the first wire-passing groove 10202 combine to form the wire-passing hole; a second protruding line 30801 is provided inside the second wire-passing groove 308; a first protruding line 10201 is provided inside the first wire-passing groove 10202; the first protruding line 10201 and the second protruding line 30801 combine to form an annular protrusion that fits over the cable 201.
[0035] The annular protrusion and the outer sheath of the cable 201 are pressed against each other, causing the surface of the cable 201 to deform and interfere with each other, forming a sealing line between the cable 201 and the wire hole, preventing the internal glue from flowing out of the wire hole.
[0036] In a preferred embodiment of this utility model, the cross-section of the first protruding line 10201 and the cross-section of the second protruding line 30801 are both "V" shaped; the width of the first protruding line 10201 and the width of the second protruding line 30801 gradually decrease along the direction close to the cable 201.
[0037] The first raised line 10201 and the second raised line 30801 of the “V” shaped structure are sharper, making it easier to deform the outer sheath of the cable 201 and enhance the sealing effect.
[0038] In a preferred embodiment of this utility model, the bottom cover 3 is provided with an overflow hole 303, and the outer surface of the bottom cover 3 is provided with a first overflow concave ring 304 and a second overflow groove 305; the first overflow concave ring 304 is sleeved on the outside of the overflow hole 303; the first overflow concave ring 304 and the overflow hole 303 are coaxially arranged; the second overflow groove 305 is used to collect the glue overflowing from the glue filling hole 306; the second overflow groove 305 is respectively arranged on the left and right sides of the glue filling hole 306, and baffles are respectively arranged on the front and rear sides of the glue filling hole 306, and baffles are arranged on both sides of the glue filling hole 306 to block the glue overflowing from the glue filling hole 306 into the second overflow groove 305; similarly, the glue flowing out of the overflow hole 303 also falls into the first overflow concave ring 304, so that the glue will not affect the surface appearance of the bottom cover 3.
[0039] In a preferred embodiment of this utility model, the number of overflow holes 303 is at least one, and the number of overflow holes 303 is two, three, or four; when there are two overflow holes 303, the two overflow holes 303 are respectively arranged on both sides of the glue filling hole 306; the overflow holes 303 on both sides are used to vent air from both sides of the glue filling hole 306.
[0040] In a preferred embodiment of this utility model, two buckles 301 are fixed on the surface of the bottom cover 3 away from the top cover 1; the two buckles 301 are arranged back to back; the buckles 301 can be fastened to the mounting platform or mounting bracket.
[0041] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.
Claims
1. A waterproof pixel point lamp, comprising a face cover (1), a PCBA board (2) and a bottom cover (3); the face cover (1) is made of transparent material; the face cover (1) and the bottom cover (3) are connected and fixed to form an outer shell; the PCBA board (2) is arranged inside the outer shell. characterized in that The face cover (1) and the bottom cover (3) are fixed into the outer shell by ultrasonic welding; the PCBA board (2) is provided with a cable (201); the outer shell is provided with a wire hole matched with the cable (201); the cable (201) extends out of the outer shell; the bottom cover (3) is provided with a glue pouring hole (306); the face cover (1) is provided with an outer limiting ring (101); the PCBA board (2) is matched with the inner hole of the outer limiting ring (101); the PCBA board (2) is embedded on the outer limiting ring (101).
2. A waterproof pixel point light according to claim 1, characterized in that: The bottom cover (3) is provided with a pressing platform (307); the light emitting surface of the PCBA board (2) is arranged away from the bottom cover (3); the face cover (1) is provided with an inner convex ring (103); the inner convex ring (103) is arranged inside the outer limiting ring (101); the height of the outer limiting ring (101) is higher than the height of the inner convex ring (103); The pressing platform (307) presses the PCBA board (2) into the inner part of the outer limiting ring (101) and adheres to the end surface of the convex ring (103).
3. A waterproof pixel point light according to claim 1, characterized in that: The cable (201) is arranged on the end surface of the PCBA board (2) away from the inner convex ring (103).
4. A waterproof pixel point light according to claim 1, characterized in that: The face cover (1) is provided with a positioning block (102); the bottom cover (3) is provided with a positioning groove (302) matched with the positioning block (102); the positioning block (102) is embedded into the positioning groove (302); the positioning block (102) is provided with a first wire slot (10202); the positioning groove (302) is provided with a second wire slot (308); after the face cover (1) and the bottom cover (3) are fixed, the second wire slot (308) and the first wire slot (10202) are combined into the wire hole; the second wire slot (308) is provided with a second protruding line (30801) inside; the first wire slot (10202) is provided with a first protruding line (10201) inside; the first protruding line (10201) and the second protruding line (30801) are combined to form a ring-shaped protrusion sleeved outside the cable (201).
5. A waterproof pixel point light according to claim 4, characterized in that: The cross section of the first protruding line (10201) and the cross section of the second protruding line (30801) are both "V" shaped; the width of the first protruding line (10201) and the width of the second protruding line (30801) gradually decrease along the direction close to the cable (201).
6. A waterproof pixel point light according to claim 1, characterized in that: The bottom cover (3) is provided with a glue overflow hole (303).
7. A waterproof pixel point light according to claim 1, characterized in that: The outer surface of the bottom cover (3) is provided with a first overflow glue concave ring (304) and a second overflow glue groove (305); the first overflow glue concave ring (304) is sleeved outside the overflow glue hole (303); the first overflow glue concave ring (304) is coaxially arranged with the overflow glue hole (303); the second overflow glue groove (305) is used for collecting the overflow glue from the glue filling hole (306).
8. A waterproof pixel point light according to claim 7, characterized in that: The number of the overflow glue holes (303) is at least one.
9. A waterproof pixel point light according to claim 1, characterized in that: Two buckles (301) are fixed on the surface of the bottom cover (3) away from the surface cover (1); the two buckles (301) are oppositely arranged.