LED lamp tube heat dissipation structure

Abstract

The utility model relates to the technical field of LED lamp tubes, in particular to an LED lamp tube heat dissipation structure which comprises a cover body, a sealing cover, a lamp strip and a heat dissipation assembly, the lamp strip and the heat dissipation assembly are arranged in the cover body, the heat dissipation assembly comprises a bearing frame, an exhaust frame and heat dissipation fins, and an inverted-T-shaped bearing groove is formed in the upper portion of the bearing frame. After the ceiling lamp beads on the lamp bar generate heat, the heat is firstly transferred to the bearing frame which is in close contact with the ceiling lamp beads, and the bearing frame is made of a material with certain thermal conductivity and can quickly receive and conduct the heat. And a plurality of groups of vent holes are formed in the bottom wall of the bearing frame, so that a convenient channel is provided for circulation of hot air, and the hot air can flow to an exhaust frame below through the vent holes. The air exhaust frame is arc-shaped, and the unique shape can guide hot air to orderly flow to the radiating fins, so that heat can be uniformly and smoothly conveyed to the radiating fins.

Description

TECHNICAL FIELD

[0001] The utility model relates to LED lamp tube technical field, concretely is a LED lamp tube heat radiation structure. BACKGROUND

[0002] With the continuous development of lighting technology, LED lamp tube has been widely applied because of its energy saving, long service life, high brightness and other advantages. However, a large amount of heat will be generated when the LED lamp tube works, and if the heat cannot be dissipated in time and effectively, the heat accumulation will cause many problems. On the one hand, high temperature will cause the performance of LED chip to decline, such as the decrease of luminous efficiency and the shift of color temperature, which will affect the lighting effect; on the other hand, long time in high temperature environment will also accelerate the aging of internal electronic components of the lamp tube, shorten the service life of the LED lamp tube, increase the use cost and maintenance frequency. SUMMARY

[0003] (I) Technical problem solved

[0004] In view of the defects of the prior art, the utility model provides a LED lamp tube heat radiation structure.

[0005] (II) Technical scheme

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a LED lamp tube heat radiation structure, including cover body, cover, lamp strip and heat dissipation assembly, the lamp strip and heat dissipation assembly are arranged in the cover body, the heat dissipation assembly includes bearing frame, exhaust rack and heat dissipation fin, the bearing frame top is provided with the bearing groove that is inverted T-shaped, the bearing frame lower part is also provided with the exhaust rack that is arc-shaped, the exhaust rack is away from the bearing frame one side is also provided with the heat dissipation fin, the lamp strip lower part is slidably connected with the bearing groove lower part, the lamp strip top is also provided with a plurality of groups of top lamp beads, the cover body left and right sides are also provided with the connecting piece that is connected with the cover, the cover is close to the cover body one side is also provided with the positioning groove for bearing the bearing frame.

[0007] In order to facilitate the air circulation and heat dissipation, the utility model improves that, the bearing frame bottom wall is also provided with a plurality of groups of air holes.

[0008] In order to facilitate the increase of heat dissipation efficiency, the utility model improves that, the heat dissipation fin is provided as a plurality of groups of even arrangement.

[0009] In order to facilitate the disassembly and assembly of cover, the utility model improves that, the connecting piece includes positioning block, elastic member and clamping block, the cover both ends left and right sides are symmetrically provided with positioning block, the positioning block is away from the cover one end and is provided with movable slot, and the elastic member two ends are connected with the movable slot inner wall and clamping block respectively.

[0010] Preferably, the clamping block is symmetrically provided with an inclined surface on both sides of the end away from the elastic member.

[0011] Preferably, the elastic member comprises a spring and a telescopic rod, the spring is sleeved on the telescopic rod, and the spring and the telescopic rod are respectively connected with the clamping block and the inner wall of the movable slot at both ends.

[0012] (Three) beneficial effects

[0013] Compared with the prior art, the LED lamp tube heat dissipation structure has the following advantages

[0014] Beneficial effects:

[0015] The LED lamp tube heat dissipation structure, the heat generated by the top lamp beads on the lamp strip is first transmitted to the bearing frame in close contact with the bearing frame, the bearing frame is made of a material with certain thermal conductivity, and can quickly receive and conduct heat. The bearing frame is provided with a plurality of groups of air holes on the bottom wall, which provides a convenient channel for the circulation of hot air. The hot air can flow downward through the air holes to the exhaust frame. The exhaust frame is arc-shaped. This unique shape can guide the hot air to flow orderly to the heat dissipation fins, ensuring that the heat can be evenly and smoothly transported to the heat dissipation fins. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a main view of the structure of the utility model;

[0017] Figure 2 It is a local view of the structure of the utility model;

[0018] Figure 3 It is a structure of the utility model Figure 2 Local enlarged view;

[0019] Figure 4 It is a structure of the utility model

[0020] In the drawing: 1, cover; 2, cover; 3, lamp strip; 4, bearing frame; 5, exhaust frame; 6, heat dissipation fin; 7, lamp bead; 8, positioning block; 9, clamping block; 10, inclined surface; 11, spring; 12, telescopic rod. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0022] Please refer toFigures 1-4 The LED lamp tube heat dissipation structure comprises a cover body 1, a cover 2, a lamp strip 3 and a heat dissipation assembly, the lamp strip 3 and the heat dissipation assembly are arranged in the cover body 1, the heat dissipation assembly comprises a bearing frame 4, an air exhaust frame 5 and heat dissipation fins 6, the bearing frame 4 is provided with a bearing groove in the shape of an inverted T on the top, the air exhaust frame 5 in the shape of an arc is further arranged below the bearing frame 4, the heat dissipation fins 6 are further arranged on the side of the air exhaust frame 5 away from the bearing frame 4, the lower part of the lamp strip 3 is in sliding connection with the lower part of the bearing groove, a plurality of groups of top lamp beads 7 are further arranged on the lamp strip 3, the left and right sides of the cover body 1 are further provided with connecting pieces connected with the cover 2, and the side of the cover 2 close to the cover body 1 is further provided with a positioning groove for bearing the bearing frame 4.

[0023] When the LED lamp tube is powered on, the top lamp beads 7 on the lamp strip 3 begin to emit light, and a large amount of heat is generated at the same time. Since the top lamp beads 7 are in close contact with the bearing frame 4, the heat is quickly transferred to the bearing frame 4 in the form of heat conduction. The bearing frame 4 is generally made of a material with good heat conduction performance, such as aluminum alloy, which can efficiently receive the heat generated by the top lamp beads 7 and conduct and diffuse the heat inside itself, so that the heat is evenly distributed on the overall structure of the bearing frame 4, preparing for the subsequent heat dissipation step;

[0024] The heat dissipation fins 6 are made of a material with good heat conduction performance (such as aluminum) and are arranged in several groups and evenly arranged, having a large heat dissipation surface area. When hot air is guided around the heat dissipation fins 6, the heat carried by the hot air is quickly transferred to the heat dissipation fins 6. The heat dissipation fins 6 exchange heat with the surrounding air of relatively low temperature, and the heat is transferred from the heat dissipation fins 6 to the surrounding air, so that the surrounding air temperature rises to become hot air;

[0025] The cover body 1 has good heat conduction effect, facilitating heat dissipation;

[0026] The cover 2 is connected with the cover body 1 through the connecting pieces and stably supports the heat dissipation assembly.

[0027] In the embodiment, the bottom wall of the bearing frame 4 is further provided with a plurality of groups of air vents. As the heat is conducted to the bearing frame 4, the air in the bearing frame 4 is heated and the density becomes smaller to form hot air, which naturally flows downward through the air vents into the space area where the air exhaust frame 5 is located. The arc-shaped design of the air exhaust frame 5 has a unique air guiding function. The hot air follows the arc-shaped structure of the air exhaust frame 5 and is orderly guided to the direction where the heat dissipation fins 6 are located according to a certain flow direction, avoiding the disorderly flow of hot air to cause uneven heat dissipation or heat accumulation in local areas, ensuring that the hot air can uniformly and smoothly reach the heat dissipation fins 6, creating good conditions for subsequent heat exchange, and the heat dissipation fins 6 are arranged in several groups and evenly arranged.

[0028] In actual use, the connecting piece comprises a positioning block 8, an elastic piece and a clamping block 9, the left and right sides of the two ends of the cover body 1 are symmetrically provided with the positioning block 8, the positioning block 8 is provided with a movable slot away from one end of the cover body 1, the two ends of the elastic piece are connected with the inner wall of the movable slot and the clamping block 9 respectively, the left and right sides of the clamping block 9 away from one end of the elastic piece are symmetrically provided with inclined surfaces 10, the elastic piece comprises a spring 11 and a telescopic rod 12, the spring 11 is sleeved on the telescopic rod 12, the two ends of the spring 11 and the telescopic rod 12 are connected with the clamping block 9 and the inner wall of the movable slot respectively, when it is necessary to maintain the LED lamp tube (such as checking whether the lamp strip 3 is damaged, cleaning the heat dissipation assembly and the like) or replace the internal components, the cover 2 is first disassembled. When operating, the cover 2 is inserted and pulled by hand, the inclined surface 10 of the clamping block 9 cooperates with the feeding of the cover 2, along with the gradual retraction of the clamping block 9, the state of the clamping block 9 clamped with the cover 2 is released, at this time, the spring 11 is contracted, the telescopic rod 12 is contracted, the spring 11 facilitates the reciprocating motion of the clamping block 9, and the telescopic rod 12 ensures the stability of the movement of the clamping block 9, at this time, the cover 2 can be taken off from the cover body 1, exposing the lamp strip 3 and the heat dissipation assembly inside the cover body 1, facilitating subsequent further operation.

[0029] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily referring to the same embodiment, nor are separate embodiments necessarily mutually exclusive of one another. In principle, any feature of the application described herein can be combined with any other feature, unless technically infeasible or otherwise incompatible.

[0030] Unless otherwise defined, technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the use of related terms in the specification is merely to describe particular embodiments and is not intended to limit the application.

[0031] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, alternatives, and variations can be made thereto without departing from the principles and spirit of the present application.

Claims

1. A LED tube heat dissipation structure, comprising a cover body (1), a cover (2), a light bar (3) and a heat dissipation assembly, characterized in that: The cover body (1) is internally provided with the lamp strip (3) and a heat dissipation assembly, the heat dissipation assembly comprises a bearing frame (4), an air exhaust frame (5) and heat dissipation fins (6), the bearing frame (4) is provided with a bearing groove in inverted T shape above, the bearing frame (4) is further provided with an air exhaust frame (5) in arc shape below, the air exhaust frame (5) is further provided with the heat dissipation fins (6) away from one side of the bearing frame (4), the lower part of the lamp strip (3) is in sliding connection with the lower part of the bearing groove, the lamp strip (3) is further provided with a plurality of groups of top lamp beads (7), the cover body (1) is further provided with connecting pieces connected with the cover (2) on the left and right sides, the cover (2) is further provided with a positioning groove for bearing the bearing frame (4) on the side close to the cover body (1).

2. The LED tube heat dissipation structure according to claim 1, wherein: The bottom wall of the bearing frame (4) is further provided with a plurality of groups of air holes.

3. The LED tube heat dissipation structure according to claim 2, wherein: The heat dissipation fins (6) are arranged in a plurality of groups and are uniformly arranged.

4. The LED tube heat dissipation structure of claim 3, wherein: The connecting piece comprises a positioning block (8), an elastic piece and a clamping block (9), the positioning block (8) is symmetrically arranged on the left and right sides of both ends of the cover body (1), the positioning block (8) is provided with a movable groove away from one end of the cover body (1), and the elastic piece is connected with the inner wall of the movable groove and the clamping block (9) at both ends respectively.

5. The LED tube heat dissipation structure according to claim 4, wherein: The clamping block (9) is symmetrically provided with inclined surfaces (10) on the front and back sides away from one end of the elastic piece.

6. The LED tube heat dissipation structure according to claim 5, characterized in that: The elastic piece comprises a spring (11) and a telescopic rod (12), the spring (11) is sleeved on the telescopic rod (12), and the spring (11) and the telescopic rod (12) are connected with the clamping block (9) and the inner wall of the movable groove at both ends respectively.

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