Light-emitting device and lamp cover structure

Abstract

Provided are a light emitting device and a lamp cover structure, the lamp cover structure is suitable for being installed on a light emitting device unit, and the light emitting device unit comprises a shell defining a containing space and forming an opening, a light emitting device module arranged in the containing space and a wire electrically connected with the light emitting device module. The lamp cover structure comprises an end cover and a limiting piece. And the lead can penetrate through the end cover. The end cover comprises a base wall covering the opening and an outer surrounding wall protruding from the base wall to the direction of the containing space, and an inner groove is defined by the base wall and the outer surrounding wall. The limiting piece is connected with the wire in a penetrating mode and arranged in the inner groove. The limiting piece comprises a first wall face connected with the base wall, the radial width of the first wall face is larger than the hole diameter of the penetrating hole, the first wall face cannot penetrate through the penetrating hole, and therefore the wire is not separated from the end cover.

Description

Technical Field

[0001] The utility model relates to a lamp, in particular to a light emitting device and a lamp cover structure of the light emitting device. Background Art

[0002] LED (Light-Emitting Diode) lighting devices have been widely used as lamps, and various manufacturers have also developed many different styles of LED lighting devices.

[0003] An example of a currently known LED light-emitting device is an LED lamp tube, which includes a light-transmitting and tubular shell, a lamp cover structure that seals an opening of the tube body, a wire that protrudes through the lamp cover structure, and a light-emitting module that is located inside the tube body and electrically connected to double teeth at both ends.

[0004] When the wire is subjected to tension, it is easy to separate from the lamp cover structure and tear the light emitter module. To avoid this, the light emitter module needs to be fixed in the housing, and a large amount of adhesive needs to be squeezed into the lamp cover structure to prevent the wire from separating from the lamp cover structure. However, the above arrangement is inconvenient and difficult to assemble when assembling the LED lamp tube.

[0005] In order to fix the light-emitting module in the housing, it is necessary to add relevant structural designs to achieve the purpose, which is inconvenient. In addition, when the space in the housing is not enough for the staff to insert their fingers, it will also cause inconvenience in assembling the LED lamp. When a large amount of adhesive is squeezed into the lamp cover structure, the uncured adhesive is in a flowing liquid state, and the flow direction of the adhesive is difficult to control, which has caused difficulties in assembling the LED lamp. What needs more attention is that the adhesive whose flow direction is difficult to control is attached to the end of the housing, resulting in the housing being unable to abut against the lamp cover structure, thereby affecting the assembly of the LED lamp.

[0006] Therefore, the purpose of the present invention is to provide a new structural design of an LED lighting device and a lamp cover structure, which can prevent the wires from being separated from the LED lamp cover structure and can be assembled simply and conveniently. Utility Model Content

[0007] The purpose of the utility model is to provide a lamp cover structure which can overcome at least one disadvantage of the background technology.

[0008] The lamp cover structure described in the present utility model is applicable to be installed on a light emitting unit. The light emitting unit includes a housing that defines an accommodation space and forms an opening, a light emitting module disposed in the accommodation space, and a wire electrically connected to the light emitting module. The lamp cover structure includes: an end cover that defines a through hole and seals the opening of the housing. The through hole of the end cover can allow the wire to pass through. The end cover includes a base wall that covers the opening of the housing and is provided with the through hole.

[0009] The end cover further includes an outer surrounding wall that protrudes from the base wall towards the accommodation space and surrounds the through hole. The base wall and the outer surrounding wall define an inner groove. The lamp cover structure further includes a limiting member that is connected to a section of the wire passing through the inner side of the end cover and is disposed in the inner groove between the end cover and the light emitting module. The limiting member includes a first wall surface that is connected to the base wall. The radial width of the first wall surface is greater than the aperture of the through hole and cannot pass through the through hole, thereby preventing the wire from detaching from the end cover.

[0010] In the lamp cover structure described in the present utility model, the end cover further includes a side wall that extends from the peripheral edge of the base wall away from the base wall and sleeves on the side wall of the housing, and a tube wall that is connected to the outer side surface of the base wall and surrounds the wire passing through the through hole. The outer surrounding wall, the base wall, and the side wall define an outer groove for the housing to be inserted.

[0011] In the lamp cover structure described in the present utility model, the lamp cover structure further includes an adhesive body that is connected to the base wall and is located in the inner groove. The adhesive body is connected to the first wall surface of the limiting member and fixes the limiting member to the base wall.

[0012] In the lamp cover structure described in the present utility model, the end cover further includes an inner surrounding wall that protrudes from the base wall towards the accommodation space and surrounds the through hole. The inner surrounding wall is located in the inner groove between the outer surrounding wall and the through hole. The end edge of the inner surrounding wall away from the base wall abuts against the first wall surface of the limiting member. The outer surrounding wall is connected to the periphery of the limiting member. The adhesive body is located between the inner surrounding wall and the outer surrounding wall.

[0013] In the lamp cover structure described in the present utility model, a side groove is recessed on the inner side surface of the side wall, and the inner side surface of the side wall is connected to the housing.

[0014] In the lamp cover structure described in the present utility model, the limiting member further includes a second wall surface opposite to the first wall surface. The second wall surface can be connected to the light emitting module. The wire passes through the limiting member and is connected to the light emitting module.

[0015] The object of the present utility model is to provide a lighting device that can overcome at least one drawback of the background art.

[0016] The lighting device described in the present utility model includes a light emitter unit and the aforementioned lamp cover structure.

[0017] The beneficial effect of the present utility model is that, through the structural design of the limiting member, the wire is prevented from detaching from the end cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features and beneficial effects of the present utility model will be clearly presented in the embodiments with reference to the accompanying drawings, wherein:

[0019] Figure 1 is an incomplete perspective view illustrating the structure of the first embodiment of the lighting device of the present utility model;

[0020] Figure 2 is an incomplete exploded perspective view illustrating the structure of the first embodiment;

[0021] Figure 3 is an incomplete side cross-sectional view illustrating the structure of the first embodiment;

[0022] Figure 4 is an incomplete side cross-sectional view illustrating the structure of the second embodiment of the lighting device of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Before the present utility model is described in detail, it should be noted that in the following description, similar components are denoted by the same reference numerals.

[0024] Refer to Figure 1 、 2 、3, the first embodiment of the lighting device 1 of the present utility model includes a light emitter unit 2 and a lamp cover structure 3.

[0025] The light emitter unit 2 includes a housing 21 that extends longitudinally at both ends to form a tubular shape and defines an accommodation space 211, a light emitter module 22 disposed in the accommodation space 211, and a wire 23 electrically connected between the light emitter module 22 and a power supply device (not shown in the figures) and disposed adjacent to one end of the housing 21 corresponding thereto. The housing 21 has an opening 212. The light emitter module 22 includes several electric wires 221, a circuit board 222, a light emitter 223, and a controller 224. The light emitter 223 is a light-emitting component in a lamp of the LED type. The power supply device supplies power to enable the light emitter module 22 to emit light.

[0026] In this first embodiment, the housing 21 is in the shape of a tube extending at both ends. However, in other embodiments of the present utility model, the housing 21 can also be of other shapes, such as a sphere, a cube, a cone, or an irregular three-dimensional shape. The above are only examples and are not intended to limit the present utility model thereto.

[0027] In this first embodiment, the light emitter module 22 is a light-emitting component in a lamp of the LED type, and its structural design is mainly aimed at providing a light source. However, in other embodiments of the present utility model, any other type of light emitter module 22 that can achieve the above purpose is an embodiment that the present utility model can implement. This first embodiment is only an example and is not intended to limit the present utility model thereto.

[0028] The lamp cover structure 3 is installed on the housing 21 and includes an end cap 31 that defines a through hole 316 and seals the opening 212, a limiting member 32 that is connected to a section of the wire 23 passing through the inner side of the end cap 31 and is disposed between the end cap 31 and the light emitter module 22, an adhesive body 33 that is connected to the inner wall surface of the end cap 31, and a fixing film 34 that is connected to the housing 21 and the end cap 31. The limiting member 32 is connected to the inner wall surface of the end cap 31.

[0029] The end cap 31 is made of a flexible material and has a base wall 311 that seals the opening 212 of the housing 21 and penetrates through the through hole 316, an inner surrounding wall 312 that protrudes from the base wall 311 towards the accommodation space 211 and surrounds the through hole 316, an outer surrounding wall 313 that protrudes from the base wall 311 towards the accommodation space 211 and surrounds the inner surrounding wall 312, a side wall 314 that extends from the periphery of the base wall 311 away from the base wall 311 and is sleeved outside the housing 21, and a tube wall 315 that is integrally connected to the base wall 311 and tightly surrounds the wire 23 passing through the through hole 316. The base wall 311 and the outer surrounding wall 313 define an inner groove 317. The outer surrounding wall 313, the base wall 311, and the inner side surface of the side wall 314 define an outer groove 318. The inner groove 317 can be used for setting the limiting member 32, and the outer groove 318 can be used for inserting the housing 21. The outer surrounding wall 313 and the side wall 314 cooperate to elastically clamp the housing 21 inserted in the outer groove 318. The end edge of the inner surrounding wall 312 away from the base wall 311 is connected to the limiting member 32. The outer surrounding wall 313 is connected to the periphery of the limiting member 32 and limits the limiting member 32 in the inner groove 317.

[0030] In this first embodiment, the end cap 31 is made of a flexible material. However, in other embodiments of the present utility model, the end cap 31 can be made of a non-flexible material. The above are only examples and are not intended to limit the present utility model thereto.

[0031] The side wall 314 is connected to the housing 21, and three side grooves 319 are recessed in its inner side surface. The side grooves 319 can reduce the frictional force between the side wall 314 and the housing 21, enabling the end cap 31 to be more easily mounted on the housing 21.

[0032] The limiting member 32 is a circular plate-like shape radially provided with a U-shaped notch, and has opposite first wall surface 321 and second wall surface 322. The inner surrounding wall 312 abuts against the first wall surface 321 of the limiting member 32. The radial width of the first wall surface 321 is greater than the aperture of the through hole 316 and cannot pass through the through hole 316, thereby preventing the wire 23 from detaching from the base wall 311. The second wall surface 322 is connected to the circuit board 222 of the light emitter module 22. The wire 23 passes through the U-shaped notch and passes through the limiting member 32 and is connected to the circuit board 222 of the light emitter module 22 located on the second wall surface 322.

[0033] In this first embodiment, the inner surrounding wall 312 abuts against the first wall surface 321 of the limiting member 32.

[0034] The adhesive body 33 is connected to the base wall 311. The adhesive body 33 is located within the inner groove 317 and between the inner surrounding wall 312 and the outer surrounding wall 313. The adhesive body 33 is connected to the first wall surface 321 of the limiting member 32 and enables the limiting member 32 to be fixedly disposed on the base wall 311.

[0035] In this first embodiment, the inner groove 317 can accommodate the adhesive body 33, and the adhesive body 33 fixes the limiting member 32 located within the inner groove 317 to the base wall 311. Regarding other structural designs of the inner groove 317 with the same above-mentioned purpose, they are all embodiments that can be implemented by the present utility model.

[0036] The adhesive body 33 is silicone. When filling the silicone into the inner groove 317, the inner surrounding wall 312 prevents the uncured silicone within the inner groove 317 from flowing out through the through hole 316.

[0037] It should be noted that the outer surrounding wall 313 can prevent the uncontrollable flow of the uncured liquid adhesive body 33, enabling the limiting member 32 to be fixed to the base wall 311 with the most appropriate amount of the adhesive body 33 used. Additionally, the outer surrounding wall 313 can also prevent the liquid adhesive body 33 from flowing into the outer groove 318, avoiding the situation where the housing 21 adheres to the adhesive body 33 and cannot abut against the base wall 311. Overall, the outer surrounding wall 313 enables the lamp cover structure 3 to be more easily and conveniently assembled on the housing 21.

[0038] In this first embodiment, the adhesive body 33 is silica gel. However, in other aspects of the present invention, the adhesive body 33 can be other adhesive materials having an adhesive function. The above aspects are all examples and are not limited thereto.

[0039] The fixing film 34 is made of a plastic material and can tightly cover the housing 21 and the end cap 31, and prevent the end cap 31 from detaching from the housing 21.

[0040] In this first embodiment, the circuit board 222 of the light emitter module 22 is adhered to the second wall surface 322. However, in other embodiments of the present invention, the second wall surface 322 can be provided and fixed with the wire 221, the circuit board 222, the light emitter 223, and the controller 224 of the light emitter module 22 according to the requirements of the structural design. The above embodiments are only examples and are not limited thereto.

[0041] The following describes the assembly steps of the light emitting device 1. First, place the light emitter module 22 in the accommodation space 211 of the housing 21, then pass the wire 23 through the lamp cover structure 3, then pass the wire 23 passing through the inside of the lamp cover structure 3 through the limiting member 32 and connect it to the light emitter module 22 on the second wall surface 322 of the limiting member 32. Then, place the adhesive body 33 in the inner groove 317, then place the first wall surface 321 of the limiting member 32 in the inner groove 317, and finally cover the end cap 31 on the opening 212 of the housing 21, thus completing the step of assembling the lamp cover structure 3 to the light emitter unit 2.

[0042] It should be noted that the limiting member 32 limited in the inner groove 317 can protect the wire 23 and the light emitter module 22. When the wire 23 is pulled, the limiting member 32 can prevent the wire 23 from being directly pulled out of the through hole 316 and detaching from the lamp cover structure 3. At the same time, the limiting member 32 prevents the light emitter module 22 from being pulled and damaged. With the above settings, the light emitter module 22 located in the accommodation space 211 does not necessarily need to be fixed to the inner side surface of the housing 21 or the end cap 31. Generally speaking, it makes the light emitter module 22 easier to assemble.

[0043] Refer to Figure 4 , the second embodiment of the light emitting device 1 of the present invention is substantially the same as the first embodiment, and the difference lies in: the connection relationship between the limiting member 32 and the light emitter module 22. For the convenience of description, the following will only describe the differences between the embodiments.

[0044] In this second embodiment, the circuit board 222 of the light emitter module 22 is integrally connected to a second wall surface (not shown in the figures) of the limiting member 32. Therefore, the limiting member 32 itself has the function of the circuit board 222.

[0045] Through the structural design of the limiting member 32, a different type of lighting device 1 is provided.

[0046] In summary, the lighting device 1 of the present utility model can be conveniently assembled to the housing 21 by the structural design of the end cap 31. By the structural design of the limiting member 32, the wire 23 is prevented from detaching from the lamp cap structure 3, and the light emitter module 22 is prevented from being damaged by being pulled. With this design, the light emitter module 22 does not necessarily have to be fixed to the housing 21 or the end cap 31, increasing the convenience of assembling the lighting device 1. By the structural design of the outer surrounding wall 313, the limiting member 32 can be fixed to the base wall 311 with the most appropriate amount of the adhesive body 33, and the uncured liquid adhesive body 33 is prevented from flowing into the outer groove 318, making it easier to assemble the end cap 31 to the housing 21. Therefore, the lighting device 1 of the present utility model can indeed achieve the purpose of the present utility model.

[0047] By the structural design of the inner groove 317, the adhesive body 33 can be provided to fixedly dispose the limiting member 32 on the base wall 311. Overall, even if the end cap 31 of the lamp cap structure 3 is made of a flexible material, the durability of the lighting device 1 can be improved by the structural design of the limiting member 32 and the inner groove 317.

[0048] In addition, different structural designs of the lighting device 1 can be provided by changing the connection relationship between the limiting member 32 and the light emitter module 22.

[0049] Therefore, the lighting device 1 of the present utility model is indeed a very practical creation.

[0050] The above are only specific embodiments of the present utility model, and the scope of the claims of the present utility model cannot be limited thereby. Equivalent variations made according to the recorded content of the claims and the description of the present utility model should also be covered by the scope of the claims of the present utility model.

Claims

1. A lamp cover structure is applicable to be installed on a light emitting unit. The light emitting unit includes a housing that defines an accommodation space and forms an opening, a light emitting module disposed in the accommodation space, and a wire electrically connected to the light emitting module. The lamp cover structure includes: an end cover that defines a through hole and seals the opening of the housing. The through hole of the end cover can allow the wire to pass through. The end cover includes a base wall that covers the opening of the housing and is provided with the through hole, and is characterized in that: The end cap further includes an outer surrounding wall that protrudes from the base wall towards the accommodating space and surrounds the through hole, and the base wall and the outer surrounding wall define an inner groove; the lamp cap structure further includes a limiting member that is connected to the section of the wire passing through the inner side of the end cap and is disposed in the inner groove and located between the end cap and the light emitting module. The limiting member includes a first wall surface that is connected to the base wall, and the radial width of the first wall surface is greater than the aperture of the through hole so that the limiting member cannot pass through the through hole, thereby preventing the wire from detaching from the end cap.

2. The lamp cover structure according to claim 1, wherein: The end cap further includes a side wall that extends from the periphery of the base wall away from the base wall and sleeved on the side wall of the housing, and a pipe wall that is connected to the outer side surface of the base wall and surrounds the wire passing through the through hole. The outer surrounding wall, the base wall, and the side wall define an outer groove for inserting the housing.

3. The lamp cover structure according to claim 2, wherein: The lamp cap structure further includes an adhesive body that is connected to the base wall and located in the inner groove. The adhesive body is connected to the first wall surface of the limiting member and fixes the limiting member to the base wall.

4. The lamp cover structure according to claim 3, wherein: The end cap further includes an inner surrounding wall that protrudes from the base wall towards the accommodating space and surrounds the through hole. The inner surrounding wall is located in the inner groove and between the outer surrounding wall and the through hole. The end edge of the inner surrounding wall away from the base wall abuts against the first wall surface of the limiting member, the outer surrounding wall is connected to the periphery of the limiting member, and the adhesive body is located between the inner surrounding wall and the outer surrounding wall.

5. The lamp cover structure according to claim 2, wherein: A side groove is recessed on the inner side surface of the side wall, and the inner side surface of the side wall is connected to the housing.

6. The lamp cover structure according to claim 1, characterized in that: The limiting member further includes a second wall surface opposite to the first wall surface, and the second wall surface can be connected to the light emitting module. The wire passes through the limiting member and is connected to the light emitting module.

7. A light-emitting device, characterized in that: Comprising the lamp cap structure and the light emitting unit according to any one of claims 1 to 6.

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