A lighting fixture

Abstract

The present invention discloses a lighting fixture, comprising: a lamp body assembly, the lamp body assembly includes a lamp board, a lamp shade and an inner end cover, the lamp shade is connected to the lamp board to define a cavity, the inner end cover includes a first end portion located inside the cavity and a second end portion located outside the cavity, a first liquid drainage groove is provided on the outer side wall of the inner end cover, and at least a part of the first liquid drainage groove is located on the second end portion; an outer end cover, the end portion of the lamp body assembly extends into the outer end cover, and the outer end cover covers the first liquid drainage groove. The lighting fixture in the present invention can simplify the structure on the basis of having a certain waterproof property, which can not only simplify the installation process of the lighting fixture, improve the installation efficiency and reduce the installation cost, but also the interior of the lighting fixture is not prone to water ingress during use.

Description

Technical Field

[0001] The present invention relates to the field of lighting, and more particularly to a lighting fixture. Background Art

[0002] Generally, lighting fixtures have certain performance requirements for specific usage environments. For example, when a lighting fixture is used in an environment with a lot of water vapor and high humidity, such as a bathroom, it needs to have good waterproof performance to prevent malfunctions due to excessive water accumulation inside the fixture, which may affect normal use. However, many current lighting fixtures usually use methods such as glue sealing or rubber ring sealing to achieve better waterproof performance. This not only makes the installation process of the lighting fixture more troublesome, affecting the installation efficiency, but also increases the installation cost of the lighting fixture. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a lighting fixture that can simplify the structure on the basis of having a certain waterproof property, thereby simplifying the installation process of the lighting fixture, improving the installation efficiency and reducing the installation cost.

[0004] An embodiment of the present invention provides a lighting fixture, including:

[0005] A lamp body assembly, the lamp body assembly includes a lamp board, a lamp shade and an inner end cover. The lamp shade is connected to the lamp board to define a cavity. The inner end cover includes a first end portion located inside the cavity and a second end portion located outside the cavity. A first liquid drainage groove is provided on the outer side wall of the inner end cover, and at least a part of the first liquid drainage groove is located on the second end portion.

[0006] An outer end cover, the end portion of the lamp body assembly extends into the outer end cover, and the outer end cover covers the first liquid drainage groove.

[0007] The lighting fixture according to the embodiment of the present invention has at least the following beneficial effects: Generally, the lighting fixture is horizontally installed, the lamp board faces the installation position, three surfaces of the lamp shade and two end faces of the outer end cover are exposed. The outer end cover plays a certain role in draining. The liquid can flow along the outer end cover to the lamp shade. The liquid on the lamp shade will directly flow downward along the lamp shade and leave the lighting fixture, or flow along the lamp shade towards the inner end cover. After flowing to the end of the lamp shade, it enters the first liquid drainage groove and is discharged through the first liquid drainage groove, making it difficult for the liquid to enter the interior of the lighting fixture, and achieving waterproofing by using the structure of the lighting fixture itself. Compared with methods such as setting a sealing ring, the structure is simplified while having a certain waterproof performance.

[0008] For the lighting fixture according to other embodiments of the present invention, a part of the first liquid drainage groove is located on the first end portion.

[0009] A lighting fixture according to other embodiments of the present invention, the inner end cover includes a first side wall, a second side wall, a third side wall, a fourth side wall and a fifth side wall, the first drainage groove is provided on the sequentially connected first side wall, the second side wall and the third side wall, the first side wall is connected to the fourth side wall, the third side wall is connected to the fifth side wall, the fourth side wall, the fifth side wall and the lamp board are located on the same side of the lamp cover, the first drainage groove extends to the fourth side wall to form a first drainage port, the first drainage groove extends to the fifth side wall to form a second drainage port, and an outer end cover opening is provided on the side of the outer end cover facing the lamp board, so that the first drainage port and the second drainage port are kept unobstructed.

[0010] A lighting fixture according to other embodiments of the present invention, the fourth side wall and the fifth side wall are coplanar.

[0011] A lighting fixture according to other embodiments of the present invention, a second drainage groove is provided on the end wall of the second end portion, the inner end cover further includes a sixth side wall, the sixth side wall and the lamp board are located on the same side of the lamp cover, and the second drainage groove extends to the sixth side wall to form a third drainage port.

[0012] A lighting fixture according to other embodiments of the present invention, the second drainage groove is arranged along the circumferential direction of the second end portion.

[0013] A lighting fixture according to other embodiments of the present invention, the lamp cover and the lamp board are in interference fit.

[0014] A lighting fixture according to other embodiments of the present invention, the lamp cover is provided with a hook, the lamp board is provided with a protruding portion, and the hook abuts against the protruding portion.

[0015] A lighting fixture according to other embodiments of the present invention, the outer end cover is snap-connected to the inner end cover.

[0016] A lighting fixture according to other embodiments of the present invention, the inner end cover is provided with a first hole position and a second hole position, the outer end cover is provided with a first clamping block and a second clamping block, the distance between the first clamping block and the second clamping block is smaller than the distance between the first hole position and the second hole position, the first clamping block is clamped into the first hole position, and the second clamping block is clamped into the second hole position, the first clamping block is provided with a first limiting block capable of preventing the first clamping block from withdrawing from the first hole position, and the second clamping block is provided with a second limiting block capable of preventing the second clamping block from withdrawing from the second hole position. Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of the lighting fixture in the first embodiment;

[0018] Figure 2It is a schematic diagram of the overall structure of the lamp in the first embodiment;

[0019] Figure 3 It is an exploded view of a partial structure of the lamp in the first embodiment;

[0020] Figure 4 It is an exploded view of a partial structure of the lamp in the first embodiment;

[0021] Figure 5 It is an exploded view of a partial structure of the lamp in the first embodiment;

[0022] Figure 6 It is a partial cross-sectional view of the lamp in the first embodiment;

[0023] Figure 7 It is a partial cross-sectional view of the lamp in the first embodiment;

[0024] Figure 8 It is a top view schematic diagram of the inner end cap in the first embodiment.

[0025] Reference numerals:

[0026] Lamp cover 100, lamp cover opening 110, hook 120, outer end cap 200, outer end cap opening 210, first clamping block 220, first limiting block 221, second clamping block 230, lamp board 300, lamp beads 310, protruding part 320, inner end cap 400, first end 410, first liquid drainage groove 411, first liquid drainage port 4111, second end 420, second liquid drainage groove 430, third liquid drainage port 431, first hole position 440, second hole position 450, first side wall 461, second side wall 462, third side wall 463, fourth side wall 464, sixth side wall 465. Detailed implementation manners

[0027] The following will clearly and completely describe the concept and technical effects generated by the present invention in combination with the embodiments, so as to fully understand the purpose, features and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present invention.

[0028] In the description of the embodiments of the present invention, if it involves orientation description, such as "upper", "lower", "front", "rear", "left", "right", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0029] In the description of the embodiments of the present invention, if a certain feature is referred to as "arranged", "fixed", "connected", or "installed" on another feature, it can be directly arranged, fixed, connected, or installed on the other feature, or indirectly arranged, fixed, connected, or installed on the other feature. In the description of the embodiments of the present invention, if "a number of" is involved, its meaning is more than one; if "a plurality of" is involved, its meaning is more than two; if "greater than", "less than", or "exceeding" is involved, it should be understood as not including the number itself; if "above", "below", or "within" is involved, it should be understood as including the number itself. If "first" or "second" is involved, it should be understood as being used to distinguish technical features, rather than indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0030] Referring to Figures 1 to 3 , the lamp in this embodiment includes a lamp body assembly (including a lamp cover 100, a lamp board 300, and an inner end cover 400), and an outer end cover 200.

[0031] Referring to Figures 3 to 4 , a number of lamp beads 310 are provided on the lamp board 300, and a lamp cover opening 110 is provided on one side of the lamp cover 100 facing the lamp board 300. An inner end cover 400 is provided at each end of the lamp board 300, and the lamp board 300 is connected to each inner end cover 400 through a threaded fastener. Of course, other conventional fixing methods are also possible. The lamp board 300 extends into the lamp cover 100 from the lamp cover opening 110, thereby forming a cavity between the lamp board 300 and the lamp cover 100. Referring to Figure 6 , the inner end cover 400 includes a first end 410 and a second end 420. The first end 410 extends into the cavity formed between the lamp board 300 and the lamp cover 100, and the second end 420 is located outside the cavity. The end of the entire lamp body assembly extends into the outer end cover 200, and the outer end cover 200 is snap-connected to the inner end cover 400. Of course, other conventional fixing methods are also possible, such as connecting or riveting using threaded fasteners.

[0032] Referring to Figure 5, the outer end cover 200 is provided with a first clamping block 220 and a second clamping block 230, and the inner end cover 400 is provided with a first hole position 440 and a second hole position 450. The distance between the first clamping block 220 and the second clamping block 230 is smaller than the distance between the first hole position 440 and the second hole position 450. During installation, the first clamping block 220 is inserted into the first hole position 440, and the second clamping block 230 is inserted into the second hole position 450 so that the outer end cover 200 and the inner end cover 400 are clamped. A first limiting block 221 is further provided at the front end of the first clamping block 220. After assembly, the first limiting block 221 will be blocked by the inner end cover 400 to prevent the first clamping block 220 from withdrawing from the first hole position 440. The structure of the second clamping block 230 is the same as that of the first clamping block 220, so it will not be elaborated here. In addition to the above structure, other similar structures are also possible. For example, the positions of the clamping blocks and the hole positions can be interchanged, or the number of clamping blocks and hole positions can be increased or decreased, or fixed by other conventional fixing methods.

[0033] Refer to Figure 3 , Figure 4 and Figure 8 , the inner end cover 400 includes a first side wall 461, a second side wall 462, and a third side wall 463 that are connected in sequence, and further includes a fourth side wall 464 connected to the first side wall 461 and a fifth side wall (omitted in the figure) connected to the third side wall 463. The fourth side wall 464, the fifth side wall, and the lamp panel 300 are all located on the same side of the lamp cover 100. The first side wall 461, the second side wall 462, and the third side wall 463 are provided with a first liquid drainage groove 411.

[0034] Refer to Figure 6 , in order to enable the liquid on the lamp cover 100 to flow smoothly into the first liquid drainage groove 411, the first liquid drainage groove 411 cannot be completely covered by the lamp cover 100. At least a part of the first liquid drainage groove 411 needs to be located on the second end portion 420, that is, at least a part of the first liquid drainage groove 411 needs to extend beyond the end portion of the lamp cover 100.

[0035] It can be understood that on the premise of meeting the above conditions, when a part of the first liquid drainage groove 411 is located on the first end portion 410, the liquid drainage effect is better. In another embodiment, a part of the first liquid drainage groove 411 is located on the first end portion 410, and another part is located on the second end portion 420. At this time, the end portion of the lamp cover 100 is directly opposite to the first liquid drainage groove 411, and the liquid flows into the first liquid drainage groove 411 more smoothly.

[0036] Refer to Figure 3 and Figure 4, the first drain tank 411 extends to the fourth side wall 464 to form a first drain port 4111 on the fourth side wall 464, and the liquid can be discharged from the first drain port 4111. Similarly, the first drain tank 411 extends to the fifth side wall to form a second drain port (not shown in the figure). In this embodiment, the fourth side wall 464 and the fifth side wall are coplanar. Of course, they can also be non-coplanar.

[0037] Referring to Figure 3 With Figure 5 , an outer end cap opening 210 facing the lamp board 300 is provided on the outer end cap 200, so that the first drain port 4111 of the first drain tank 411 and the second drain port are kept unobstructed and can communicate with the outside. Referring to Figure 6 , after the lamp is assembled, the outer end cap 200 needs to cover the first drain tank 411 to play a role in drainage.

[0038] Referring to Figure 7 , a hook 120 is further provided on the lamp cover 100, and a protruding portion 320 is provided on the lamp board 300. The lamp cover 100 and the lamp board 300 are in interference fit, and the protruding portion 320 abuts against the hook 120.

[0039] Referring to Figure 3 With Figure 6 , usually, the lamp is horizontally installed on a vertical wall. When the liquid falls on the outer surface of the lamp cover 100, the liquid may directly flow downward along the lamp cover 100 and leave the lamp cover 100, or flow toward both ends of the lamp cover 100. When the liquid flows to the end of the lamp cover 100, it falls into the first drain tank 411, and then reaches the first drain port 4111 and the second drain port. When the lamp is installed, there is a gap between the lamp board 300 and the wall, and this gap can make the liquid at the first drain port 4111 and the second drain port flow away along the wall. Referring to Figure 7 , if the liquid is directly sprayed onto the position where the lamp cover 100 is connected to the lamp board 300, due to the abutment of the protruding portion 320 and the hook 120, the liquid needs to bypass the hook 120 first and then bypass the protruding portion 320 before it can enter the lamp body. This structure increases the difficulty of the liquid entering the lamp body and improves the waterproof performance.

[0040] Or, when the liquid falls on the outer end cap 200, the liquid may flow directly downward along the outer end cap 200, or the liquid is drained by the outer end cap 200 and flows toward the lamp cover 100. After flowing to the lamp cover 100, the process is similar to the foregoing, so it will not be elaborated here.

[0041] In addition, sometimes, the lamp may also be vertically installed on the wall. At this time, the lamp board 300 still faces the wall. Referring to Figure 4 With Figure 5, in another embodiment, in the inner end cap 400, in addition to the first drain groove 411 provided on the first end portion 410, a second drain groove 430 is also provided on the end face of the second end portion 420. The inner end cap 400 further includes a sixth side wall 465, and the sixth side wall 465 is on the same side of the lamp cover 100 as the lamp board 300. Both ends of the second drain groove 430 extend to the sixth side wall 465 to form two third drain openings 431, so that the liquid in the second drain groove 430 can be smoothly discharged. In this embodiment, the sixth side wall 465 is not coplanar with the fourth side wall 464 and the fifth side wall, but is not limited thereto, and the fourth side wall 464, the fifth side wall and the sixth side wall 465 may also be set to be coplanar.

[0042] When the lamp is vertically installed, the liquid may fall on the outer surface of the lamp cover 100. Under the action of gravity, the liquid flows downward along the lamp cover 100 and flows into the outer end cap 200, and then flows away through the outer end cap opening 210 on the outer end cap 200. The second drain groove 430 can increase the size of the channel for the liquid to flow out in the outer end cap 200, so that the liquid can be discharged more smoothly. In another embodiment, the second drain groove 430 is arranged along the circumferential direction of the second end portion 420. At this time, the range covered by the second drain groove 430 on the end face of the second end portion 420 is wider, and the liquid is more likely to enter the second drain groove 430.

[0043] Alternatively, the liquid may also fall on the outer end cap 200 at the top. The liquid flows downward along the outer end cap 200 and falls on the lamp cover 100. The principle is similar to the foregoing, so it will not be elaborated here.

[0044] In addition, it should be noted that the lamp disclosed in this embodiment is usually used in environments with more water vapor such as bathrooms and showers. Liquid droplets may splash onto the lamp, or the water vapor on the lamp surface may condense to form condensate water, and there is no possibility that a large amount of liquid directly immerses the lamp.

[0045] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge scope of those of ordinary skill in the art. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. A lighting fixture, characterized in that, Comprising: A lamp body assembly, the lamp body assembly includes a lamp board, a lamp shade and an inner end cover. The lamp shade is connected to the lamp board to define a cavity. The inner end cover includes a first end portion located inside the cavity and a second end portion located outside the cavity. A first liquid drainage groove is provided on the outer side wall of the inner end cover, and at least a part of the first liquid drainage groove is located on the second end portion; An outer end cover, the end portion of the lamp body assembly extends into the outer end cover, and the outer end cover covers the first liquid drainage groove; The inner end cover includes a first side wall, a second side wall, a third side wall, a fourth side wall and a fifth side wall. The first liquid drainage groove is provided on the successively connected first side wall, second side wall and third side wall. The first side wall is connected to the fourth side wall, the third side wall is connected to the fifth side wall. The fourth side wall and the fifth side wall are on the same side of the lamp shade as the lamp board. The first liquid drainage groove extends to the fourth side wall to form a first liquid drainage port, and the first liquid drainage groove extends to the fifth side wall to form a second liquid drainage port. An outer end cover opening is provided on the side of the outer end cover facing the lamp board, so that the first liquid drainage port and the second liquid drainage port are kept unblocked; A second liquid drainage groove is provided on the end wall of the second end portion. The inner end cover further includes a sixth side wall. The sixth side wall is on the same side of the lamp shade as the lamp board. The second liquid drainage groove extends to the sixth side wall to form a third liquid drainage port; The second liquid drainage groove is arranged along the circumferential direction of the second end portion.

2. The lighting fixture according to claim 1, characterized in that, A part of the first liquid drainage groove is located on the first end portion.

3. The lighting fixture according to claim 1, characterized in that, The fourth side wall and the fifth side wall are coplanar.

4. The lighting fixture according to claim 1, characterized in that, The lamp shade and the lamp board are in interference fit.

5. The lighting fixture according to claim 4, characterized in that, The lamp shade is provided with a hook, and the lamp board is provided with a protruding portion. The hook abuts against the protruding portion.

6. The lighting fixture according to claim 1, characterized in that, The outer end cover and the inner end cover are snap-connected.

7. The lighting fixture according to claim 6, characterized in that, The inner end cover is provided with a first hole position and a second hole position. The outer end cover is provided with a first clamping block and a second clamping block. The distance between the first clamping block and the second clamping block is smaller than the distance between the first hole position and the second hole position. The first clamping block is snapped into the first hole position, and the second clamping block is snapped into the second hole position. The first clamping block is provided with a first limiting block capable of inhibiting the first clamping block from withdrawing from the first hole position, and the second clamping block is provided with a second limiting block capable of inhibiting the second clamping block from withdrawing from the second hole position.

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