Adapter box with waterproof structure and lamp thereof

Abstract

The adapter box with the waterproof structure comprises a shell and a sealing cover, the shell is provided with an inner cavity with an opening, a sealing ring is arranged on the shell and surrounds the edge of the opening, and the shell and the sealing cover are fixedly connected through a fastening assembly so that the sealing ring can be tightly attached to the position between the shell and the sealing cover. The fastening assembly comprises a plurality of connecting columns fixedly arranged in the inner cavity and fixing pieces correspondingly matched with the connecting columns, the connecting columns are provided with first matching holes, the sealing cover is provided with second matching holes, and waterproof rings are arranged between the first matching holes and the second matching holes. When the fixing piece penetrates through the first matching hole, the waterproof ring and the second matching hole and then is locked, the waterproof ring is tightly attached between the connecting column and the sealing cover, and the waterproof ring can play a role in sealing the first matching hole or / and the second matching hole, so that the inner cavity has waterproof and dustproof functions.

Description

Technical Field

[0001] This invention relates to the field of lighting technology, and more particularly to an adapter box with a waterproof structure and a lighting fixture thereof. Background Technology

[0002] In traditional lighting design, waterproofing is a key factor in ensuring stable operation of the luminaire in humid or outdoor environments. Currently, common waterproof structures primarily use screws and waterproof gaskets to achieve a seal. Specifically, the luminaire's housing is tightened with screws, and a waterproof gasket (such as a silicone or rubber ring) is placed at the joint surface. The pressure of the screws deforms the gasket, thereby filling the gaps between the housings and achieving a waterproof effect.

[0003] However, this structure has obvious technical drawbacks in practical applications:

[0004] Screw stress causes plastic deformation of the waterproof rubber ring: During the screw tightening process, the waterproof rubber ring is subjected to large local compressive stress, which can easily lead to irreversible plastic deformation. If the lamp needs to be disassembled and reassembled (such as for repair or replacement of parts), the waterproof rubber ring has undergone plastic deformation, reducing its elastic recovery ability and making it difficult to form an effective seal again, resulting in a significant decrease in waterproof performance.

[0005] Repeated disassembly and reassembly affect sealing reliability: Due to the limited elastic recovery ability of the waterproof rubber ring, after repeated disassembly and reassembly, the rubber ring may not be able to return to its initial state, resulting in poor sealing and causing problems such as water seepage and air leakage, which affects the service life and safety of the lamp.

[0006] Unstable waterproof performance: The tightening force of the screws is difficult to control precisely. If it is too tight, the waterproof rubber ring will be over-compressed or even damaged. If it is too loose, it will not be able to form an effective seal, resulting in unstable waterproof performance and increasing the quality risks during production and use.

[0007] Therefore, the existing screw-fastening and waterproof rubber ring sealing method has obvious limitations. There is an urgent need for a new waterproof structure that can ensure sealing performance while avoiding the failure of the waterproof rubber ring due to disassembly and assembly, thereby improving the reliability and service life of the lamp.

[0008] This patented technology aims to solve the above problems by providing an improved waterproof structure for lighting fixtures, which optimizes sealing performance and enhances ease of assembly and disassembly. Summary of the Invention

[0009] To solve one of the above-mentioned technical problems, this invention provides an adapter box with a waterproof structure and a lamp fixture thereof, which has an improved waterproof structure for lamp fixtures to optimize sealing performance and improve ease of disassembly and assembly.

[0010] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0011] A waterproof adapter box includes a housing and a sealing cover. The housing has an open inner cavity, and a sealing ring is disposed on the housing around the edge of the opening. The housing and the sealing cover are fixedly connected by a fastening assembly so that the sealing ring fits tightly between the housing and the sealing cover. The fastening assembly includes a plurality of connecting posts fixedly disposed in the inner cavity and a fixing member corresponding to and cooperating with the plurality of connecting posts. The connecting posts are provided with a first mating hole, and the sealing cover is provided with a second mating hole. Further defined, a waterproof ring is disposed between the first mating hole and the second mating hole. When the fixing member is inserted through the first mating hole, the waterproof ring, and the second mating hole and locked, the waterproof ring fits tightly between the connecting post and the sealing cover.

[0012] Further defined, the opening edge is provided with an annular groove formed by an inner annular flange and an outer annular flange respectively placed inside and outside, and the sealing ring is adapted to be placed in the annular groove.

[0013] Further defined, the connecting column includes a first column integrally formed with multiple inner cavity sidewalls, the waterproof ring includes a first rubber ring, the end of the first column is provided with an arc-shaped groove formed by an arc-shaped flange for fitting with the first rubber ring, the arc-shaped flange is integrally connected with the annular inner flange, and the arc-shaped groove is connected to the annular groove.

[0014] Further defined, the fastener includes a first bolt, the first mating hole on the first column is a threaded hole, and the first bolt passes through the second mating hole and the first rubber ring in sequence before being threadedly connected to the first mating hole.

[0015] Further defined, the sealing ring is integrally formed with the first rubber ring via the first connecting block.

[0016] Further defined, the connecting column also includes at least two second columns fixedly disposed in the middle of the inner cavity, and the waterproof ring also includes a second rubber ring, the outer periphery of which is provided with a rim to form a circular groove adapted to the second column.

[0017] Further defined, the fastener includes a second bolt, the first mating hole on the second column is a through hole, and the second bolt passes through the first mating hole, the second rubber ring and the second mating hole in sequence to be threadedly connected to the lamp body.

[0018] Further defined, the sealing ring is integrally formed with the second rubber ring via the second connecting block.

[0019] A lighting fixture includes a control box and multiple lamp bodies, which are sequentially spliced ​​together end to end. The adapter box is provided on the back of each lamp body, and the control box is electrically connected to the lamp body through the adapter box.

[0020] After adopting the above technical solution, the present invention has at least the following beneficial effects: a waterproof ring is provided between the first mating hole and the second mating hole. When the fixing member is inserted into the first mating hole, the waterproof ring and the second mating hole and locked, the waterproof ring is tightly fitted between the connecting column and the sealing cover. The waterproof ring can seal the first mating hole and / or the second mating hole so that the inner cavity has waterproof and dustproof functions. Attached Figure Description

[0021] Figure 1 This is a structural diagram of the adapter box;

[0022] Figure 2 This is an exploded view of the adapter box;

[0023] Figure 3 This is a cross-sectional view of the adapter box;

[0024] Figure 4 This is a structural diagram showing the sealing ring, the first rubber ring, and the second rubber ring integrally formed.

[0025] Figure 5 This is a structural diagram showing the adapter box on which the lamp body is installed;

[0026] Figure 6 This is a block diagram illustrating the connection principle of the control box, adapter box, and lamp body. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] In the description of this invention, it should be understood that the terms "center," "middle," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0029] This application provides an adapter box with a waterproof structure, as shown in the attached document. Figure 1As shown, the adapter box is used for power interface conversion and signal interface conversion of lamps, providing power signals and control signals to the lamps; the waterproof structure involved in this adapter box is as follows.

[0030] As attached Figure 2 and attached Figure 3 As shown, it includes a housing 1 and a sealing cover 2. The housing 1 has an open inner cavity 10, which mainly provides space for electronic components. A sealing ring 3, made of silicone or rubber, is provided on the housing 1 and surrounds the edge of the opening. The housing 1 and the sealing cover 2 are fixedly connected by a fastening assembly 4 to ensure that the sealing ring 3 fits tightly between the housing 1 and the sealing cover 2. The fastening assembly 4 includes a plurality of connecting posts 41 fixedly disposed in the inner cavity 10 and fixing brackets corresponding to and cooperating with the plurality of connecting posts 41. The connecting post 41 is provided with a first mating hole 410, and the sealing cover 2 is provided with a second mating hole 20. A waterproof ring 5 is provided between the first mating hole 410 and the second mating hole 20. When the fixing member 42 is inserted through the first mating hole 410, the waterproof ring 5 and the second mating hole 20 and locked, the waterproof ring 5 is tightly fitted between the connecting post 41 and the sealing cover 2. The waterproof ring 5 can seal the first mating hole 410 and / or the second mating hole 20 so that the inner cavity 10 has a waterproof and dustproof function.

[0031] Furthermore, the waterproof ring 5 of this application is pressed between the connecting post 41 and the sealing cap 2, effectively increasing the contact area between the two and the waterproof ring 5. This enhances the waterproof effect while reducing the pressure on the waterproof ring 5, thus avoiding excessive compression caused by direct contact between the fastener 42 and the waterproof ring 5, which could lead to irreversible plastic deformation. It also avoids the problem of waterproof ring failure due to frequent disassembly and assembly, thereby improving the reliability and service life of the lamp.

[0032] As attached Figure 2 As shown, the opening edge is provided with an annular groove 100 formed by an inner annular flange 11 and an outer annular flange 12, which are placed inside and outside. The sealing ring 3 is adapted to be placed in the annular groove 100. The annular groove 100 can provide positioning and installation for the sealing ring 3, prevent it from falling off, and improve assembly efficiency. Then, the sealing cover 2 is in close contact with the sealing ring 3 to achieve the sealing and waterproofing effect of the inner cavity 10.

[0033] In this embodiment, the connecting column 41 includes a first column 411 integrally formed with multiple sidewalls of the inner cavity 10, and the waterproof ring 5 includes a first rubber ring 51. The end of the first column 411 is provided with an arc-shaped groove 411b formed by an arc-shaped flange 411a for fitting the first rubber ring 51. The arc-shaped flange 411a is integrally connected with the annular inner flange 11, and the arc-shaped groove 411b is connected to the annular groove 100. The first column 411 is integrally formed with the sidewalls of the inner cavity 10, eliminating the assembly gap of the traditional split connection structure and avoiding the sealing failure problem caused by vibration or material deformation.

[0034] Specifically, the integrated design of the arc-shaped flange 411a and the annular inner flange 11 further enhances the rigidity of the overall structure, ensuring that the waterproof ring 5 (first rubber ring 51) can maintain a stable sealing contact surface under long-term pressure. Furthermore, the interconnected design of the arc-shaped groove 411b and the annular groove 100 allows the first rubber ring 51 to extend into the annular groove 100 under axial pressure, forming a double sealing barrier and significantly improving waterproof and dustproof performance.

[0035] As attached Figure 2 and attached Figure 3 As shown, the fastener 42 includes a first bolt 421. The first mating hole 410 on the first column 411 is a threaded hole. The first bolt 421 passes through the second mating hole 20 and the first rubber ring 51 of the sealing cover 2 in sequence and is threadedly connected to the first mating hole 410. Specifically, the second mating hole 20 is a countersunk hole. When the threaded part of the first bolt 421 and the threaded hole are locked together, this structure can effectively press the first rubber ring 51 so that the first rubber ring 51 can seal the gap of the mating hole, thereby maintaining the airtightness of the inner cavity 10.

[0036] As attached Figure 4 As shown, the sealing ring 3 is integrally formed with the first rubber ring 51 through the first connecting block 31, which facilitates the processing (integrated injection molding) and effectively reduces the installation steps of the waterproof structure, thereby improving installation efficiency.

[0037] Specifically, the connecting post 41 further includes at least two second posts 412 fixedly disposed in the middle of the inner cavity 10, and the waterproof ring 5 further includes a second rubber ring 52. The outer periphery of the second rubber ring 52 is provided with a rim to form a circular groove 521 adapted to the second post 412, so that the second rubber ring 52 can be sleeved with the second post 412 through the circular groove 521. Preferably, the inner wall of the circular groove 521 is also provided with an annular protrusion, which can increase the tightness between the second rubber ring 52 and the second post 412 and improve the airtight performance.

[0038] In order to fix the adapter box to the lamp body 7, the fixing member 42 includes a second bolt 422. The first mating hole 410 on the second column 412 is a through hole, and the second mating hole 20 is also a through hole. The second bolt 422 passes through the first mating hole 410, the second rubber ring 52 and the second mating hole 20 in sequence and is used to connect with the lamp body 7 by thread. The second bolt 422 can be pressed between the first mating hole 410 and the second mating hole 20 by the second rubber ring 52 to seal the gap of the mating hole.

[0039] As attached Figure 4 As shown, the sealing ring 3 is integrally formed with the second rubber ring 52 through the second connecting block 32. Similarly, it facilitates the processing (integrated injection molding) and effectively reduces the installation steps of the waterproof structure, thereby improving installation efficiency.

[0040] As attached Figure 5 and attached Figure 6 As shown, a lighting fixture includes a control box 6 and multiple lamp bodies 7. The lamp bodies 7 are connected end-to-end in sequence. Each lamp body 7 has an adapter box on its back. The control box 6 is electrically connected to the lamp body 7 through the adapter box, enabling signal communication between the control box 6 and the lamp body 7 to control the lamp body 7. Specifically, the adapter boxes of the multiple lamp bodies 7 are connected in series, and the control box 6 is electrically connected to the adapter box of the first lamp body 7, thereby achieving the purpose of "one control for many" by the control box 6.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various equivalent changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof adapter box, comprising a housing (1) and a sealing cover (2), wherein the housing (1) has an open inner cavity (10), a sealing ring (3) is provided on the housing (1) and around the edge of the opening, the housing (1) and the sealing cover (2) are fixedly connected by a fastening assembly (4) so ​​that the sealing ring (3) fits tightly between the housing (1) and the sealing cover (2), the fastening assembly (4) includes a plurality of connecting posts (41) fixedly disposed in the inner cavity (10) and fixing members (42) corresponding to and cooperating with the plurality of connecting posts (41), the connecting posts (41) are provided with a first mating hole (410), and the sealing cover (2) is provided with a second mating hole (20), characterized in that, A waterproof ring (5) is provided between the first mating hole (410) and the second mating hole (20). When the fastener (42) is inserted through the first mating hole (410), the waterproof ring (5) and the second mating hole (20) and locked, the waterproof ring (5) fits tightly between the connecting post (41) and the sealing cap (2).

2. The adapter box according to claim 1, characterized in that, The opening edge is provided with an annular groove (100) formed by an inner annular flange (11) and an outer annular flange (12) placed inside and outside, and the sealing ring (3) is adapted to be placed in the annular groove (100).

3. The adapter box according to claim 2, characterized in that, The connecting column (41) includes a first column (411) integrally formed with the sidewalls of the multiple inner cavities (10), the waterproof ring (5) includes a first rubber ring (51), the end of the first column (411) is provided with an arc-shaped groove (411b) formed by an arc-shaped flange (411a) for matching the first rubber ring (51), the arc-shaped flange (411a) is integrally connected with the annular inner flange (11), and the arc-shaped groove (411b) is connected to the annular groove (100).

4. The adapter box according to claim 3, characterized in that, The fastener (42) includes a first bolt (421), and the first mating hole (410) on the first column (411) is a threaded hole. The first bolt (421) passes through the second mating hole (20) and the first rubber ring (51) in sequence and is threadedly connected to the first mating hole (410).

5. The adapter box according to claim 3, characterized in that, The sealing ring (3) is integrally formed with the first rubber ring (51) through the first connecting block (31).

6. The adapter box according to any one of claims 1 to 5, characterized in that, The connecting column (41) also includes at least two second columns (412) fixedly disposed in the middle of the inner cavity (10), and the waterproof ring (5) also includes a second rubber ring (52). The outer periphery of the second rubber ring (52) is provided with a rim to form a circular groove (521) that is adapted to the second column (412).

7. The adapter box according to claim 6, characterized in that, The fastener (42) includes a second bolt (422), the first mating hole (410) on the second column (412) is a through hole, and the second bolt (422) passes through the first mating hole (410), the second rubber ring (52) and the second mating hole (20) in sequence to be threaded to the lamp body (7).

8. The adapter box according to claim 6, characterized in that, The sealing ring (3) is integrally formed with the second rubber ring (52) through the second connecting block (32).

9. A lighting fixture, comprising a control box (6) and a plurality of lamp bodies (7), wherein the plurality of lamp bodies (7) are sequentially spliced ​​end to end, characterized in that, Each lamp body (7) has an adapter box (8) as described in any of claims 1 to 8 on its back, and the control box (6) is electrically connected to the lamp body (7) through the adapter box (8).

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