Heat dissipation lampshade for LED lamp

Abstract

The utility model discloses a heat dissipation lampshade for a light-emitting diode (LED) lamp, which relates to the field of lamp heat dissipation, and comprises an outer lampshade, an inner lampshade, a fixing mechanism, a lens cover, a limiting ring and a heat dissipation sheet, the limiting ring is detachably connected with the heat dissipation sheet, the end part of the outer lampshade is provided with an outer limiting groove corresponding to the heat dissipation sheet, and the end part of the outer lampshade is provided with an inner limiting groove corresponding to the heat dissipation sheet. Inner limiting grooves corresponding to the cooling fins are formed in the end of the inner lampshade, limiting blocks slidably connected with the inner limiting grooves are arranged on the inner wall of the outer lampshade, second cooling mechanisms are arranged at the outer ends of the cooling fins, and driving pieces corresponding to the second cooling mechanisms are arranged on the outer wall of the inner lampshade. Due to the fact that the outer limiting groove and the inner limiting groove are formed, when the limiting ring and the cooling fins need to be replaced, the outer lampshade and the inner lampshade are detached, the limiting ring and the cooling fins can be replaced, and when the cooling fins are damaged, the limiting ring and the cooling fins can be independently detached for maintenance. And the maintenance cost of the lampshade in the use process is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the field of heat dissipation of lamps, in particular to a heat dissipation lampshade for LED lamps. Background Art

[0002] LED lamps are energy-saving and have a long lifespan, avoiding the trouble of frequent bulb replacement and are favored by more and more users. However, the heat dissipation of LED lamps is also a key issue. Since LED lamps emit a large amount of heat when in use, the temperature rise of LED lamps is relatively high. In order to reduce the impact of temperature rise on the service life of LED lamps, LED lamps usually use heat dissipation lampshades to dissipate the heat.

[0003] Traditional heat dissipation lampshades generally dissipate heat by setting heat sinks on the lampshades. For example, a cylindrical LED lamp heat dissipation lampshade with Chinese patent publication number CN219775663U uses copper heat sinks to connect the internal space of the inner lampshade and the outside of the outer lampshade, which can quickly dissipate the heat of the light strip inside the lampshade and improve the overall service life of the LED lamp.

[0004] However, the copper heat sink of the above-mentioned cylindrical LED lamp heat dissipation lampshade is exposed to the outside air. During actual use or transportation and carrying, the copper heat sink is easily bumped or even damaged. Since the copper heat sink of the cylindrical LED lamp heat dissipation lampshade is fixed on the inner lampshade through and through, the copper heat sink needs to be replaced after being damaged, and only the entire inner lampshade can be replaced, which increases the subsequent maintenance cost of the cylindrical LED lamp heat dissipation lampshade. The present application proposes a cylindrical LED lamp heat dissipation lampshade that is easy to replace the heat sink. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a heat dissipation lampshade for an LED lamp to solve the technical problems mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat dissipation lampshade for an LED lamp, comprising an outer lampshade, an inner lampshade, a fixing mechanism, a lens cover, a limit ring and a heat sink, wherein the limit ring and the heat sink are detachably connected, an outer limit groove corresponding to the heat sink is provided at the end of the outer lampshade, an inner limit groove corresponding to the heat sink is provided at the end of the inner lampshade, a limit block slidably connected to the inner limit groove is provided on the inner wall of the outer lampshade, a second heat dissipation mechanism is provided at the outer end of the heat sink, and a driving member corresponding to the second heat dissipation mechanism is provided on the outer wall of the inner lampshade.

[0007] By adopting the above technical solution, when the limit ring and the heat sink need to be replaced, the outer lamp cover and the inner lamp cover can be disassembled, and the limit ring and the heat sink can be replaced. When the heat sink is damaged, the limit ring and the heat sink can be removed separately for maintenance, which effectively reduces the maintenance cost of the lamp cover during use.

[0008] The utility model is further configured such that the installation position of the limit block is located below the outer limit groove, and the top corner of the limit block is designed to be an oblique angle.

[0009] By adopting the above technical solution, the fixity of the connection position angle of the inner lampshade and the outer lampshade after installation is further ensured.

[0010] The utility model is further configured such that the distance between the top end of the limiting block and the bottom end of the outer limiting groove is the same as the distance between the bottom end of the heat sink and the bottom end of the limiting ring.

[0011] By adopting the above technical solution, the limiting ring is supported, thereby reducing the pressure on the connection position between the limiting ring and the heat sink.

[0012] The utility model is further configured such that the second heat dissipation mechanism is composed of a warping piece and a heat dissipation groove, the heat dissipation groove is opened at the outer end of the heat dissipation piece, and the heat dissipation groove runs through the upper and lower ends and the outer end surface of the heat dissipation piece.

[0013] By adopting the above technical solution, the contact area between the heat sink and the external air is effectively increased, and the heat dissipation effect of the heat sink is further improved.

[0014] The utility model is further configured that a warping piece rotatably mounted on the heat sink is provided in the heat dissipation slot, and the warping piece corresponds to the shape of the heat dissipation slot.

[0015] By adopting the above technical solution, under the action of the warping piece, the heat dissipation effect of the lampshade is further improved.

[0016] The utility model is further configured that the driving member is composed of a transmission block and a threaded sleeve, the transmission block is fixedly mounted on the top of the lifter, and a threaded sleeve for squeezing the transmission block is threadedly mounted on the outer wall of the inner lampshade;

[0017] A movable handle is installed on the outer wall of the threaded sleeve.

[0018] By adopting the above technical solution, it is ensured that the lifter can smoothly obtain the rotational power to rotate out of the heat dissipation slot.

[0019] The utility model is further configured that a positioning ring for limiting the threaded sleeve is installed on the outer wall of the inner limiting groove, and when the threaded sleeve is in contact with the top end and the positioning ring, the horizontal plane at the bottom end of the threaded sleeve is higher than the horizontal plane at the top end of the transmission block.

[0020] By adopting the above technical solution, it is ensured that the threaded sleeve will not affect the transmission block after being reset, and the transmission block can be smoothly reset.

[0021] In summary, the utility model mainly has the following beneficial effects:

[0022] The utility model is provided with an outer limit groove and an inner limit groove, so that when the limit ring and the heat sink need to be replaced, the outer lamp cover and the inner lamp cover can be disassembled, and the limit ring and the heat sink can be replaced. When the heat sink is damaged, the limit ring and the heat sink can be removed separately for maintenance, which effectively reduces the maintenance cost of the lamp cover during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of the utility model when in use;

[0025] Figure 3 This is a schematic diagram of the three-dimensional structure of the components of the utility model after explosion;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the utility model after the heat sink and the lifter are disassembled.

[0027] In the figure: 1. outer lamp cover; 2. inner lamp cover; 3. fixing mechanism; 4. lens cover; 5. limiting ring; 6. heat sink; 7. outer limiting groove; 8. inner limiting groove; 9. limiting block; 10. lifter; 11. heat sink; 12. transmission block; 13. threaded sleeve; 14. movable handle; 15. positioning ring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0029] The following describes an embodiment of the utility model based on its overall structure.

[0030] A heat dissipation lampshade for LED lamp, such as Figure 1 - Figure 4As shown, it includes an outer lampshade 1, an inner lampshade 2, a fixing mechanism 3, a lens cover 4, a limiting ring 5 and a heat sink 6, wherein the limiting ring 5 and the heat sink 6 are detachably connected, and an outer limiting groove 7 corresponding to the heat sink 6 is provided at the end of the outer lampshade 1. When the limiting ring 5 and the heat sink 6 are installed on the outer lampshade 1, the heat sink 6 can be pushed into the outer limiting groove 7. At this time, the outer limiting groove 7 will limit the heat sink 6 and preliminarily fix the heat sink 6. At the same time, an inner limiting groove 8 corresponding to the heat sink 6 is provided at the end of the inner lampshade 2, so that the heat sink 6 will be slidably connected with the inner limiting groove 8, thereby After the inner lampshade 2 is slidably connected with the outer lampshade 1, the inner limit groove 8 will cooperate with the outer limit groove 7 to limit the heat sink 6, thereby ensuring the position fixity of the heat sink 6 during use. When it is necessary to remove the heat sink 6 and the limit ring 5, it is only necessary to release the restriction of the fixing mechanism 3 on the outer lampshade 1 and the inner lampshade 2, and then separate the outer lampshade 1 and the inner lampshade 2, and then the limit ring 5 and the heat sink 6 can be removed. After the heat sink 6 is damaged, the limit ring 5 and the heat sink 6 can be separated from the inner lampshade 2, so that only the limit ring 5 and the heat sink 6 need to be replaced, effectively reducing the maintenance cost.

[0031] In some examples, a limit block 9 is provided on the inner wall of the outer lampshade 1, which is slidably connected to the inner limit groove 8. At the same time, the installation position of the limit block 9 is located below the outer limit groove 7, so that when the outer lampshade 1 is put on the inner lampshade 2, the limit block 9 at this time will enter the inner limit groove 8, so that the inner lampshade 2 at this time will be supported and restricted by the limit block 9, further ensuring the fixedness of the connection position angle of the inner lampshade 2 and the outer lampshade 1 after installation, and further preventing the inner lampshade 2 and the outer lampshade 1 from rotating during the connection process to cause damage to the heat sink 6. At the same time, the top edge corner of the limit block 9 is designed with an angled design, so that in the process of entering the inner limit groove 8, the bevel at the end of the limit block 9 will guide it, reducing the difficulty of the limit block 9 entering the inner limit groove 8.

[0032] In some examples, the limit ring 5 and the heat sink 6 are connected by bolts. When the heat sink 6 needs to be replaced, the corresponding heat sink 6 can be removed from the limit ring 5 and replaced by removing the corresponding bolts. This allows a heat sink 6 to be replaced individually when it is damaged.

[0033] Of course, in other examples, the limiting ring 5 and the heat sink 6 may be connected via a snap-fit ​​structure, and the embodiment of the present disclosure does not specifically limit the connection method between the limiting ring 5 and the heat sink 6 .

[0034] See also Figure 3The distance between the top of the limit block 9 and the bottom of the outer limit groove 7 is the same as the distance between the bottom of the heat sink 6 and the bottom of the limit ring 5, so that when the end of the heat sink 6 contacts the bottom of the outer limit groove 7, the bottom of the limit ring 5 will contact the top of the limit block 9, so that the limit block 9 will support the limit ring 5 and reduce the pressure on the connection position between the limit ring 5 and the heat sink 6.

[0035] See also Figure 1 - Figure 4 A second heat dissipation mechanism is provided at the outer end of the heat sink 6, and the second heat dissipation mechanism is composed of a tilting piece 10 and a heat dissipation groove 11, wherein the heat dissipation groove 11 is provided at the outer end of the heat sink 6, and the heat dissipation groove 11 runs through the upper and lower ends and the outer end surface of the heat sink 6, so that when the heat sink 6 is dissipating heat, it can contact with the external air through the heat dissipation groove 11. The setting of the heat dissipation groove 11 effectively increases the contact area between the heat sink 6 and the external air, and further increases the heat dissipation effect of the heat sink 6;

[0036] Furthermore, a tilting piece 10 installed on the heat sink 6 with a rotating shaft is provided in the heat sink 11. Since the tilting piece 10 and the heat sink 6 are connected by the rotating shaft, the tilting piece 10 can be rotated, so that the tilting piece 10 can rotate the heat sink 6. At the same time, since the tilting piece 10 is in contact with the heat sink 11, the heat of the heat sink 6 can be transferred to the tilting piece 10. The heat dissipation effect is further improved by the contact between the tilting piece 10 and the external air, so that the heat dissipation effect of the lampshade is further improved. At the same time, the tilting piece 10 corresponds to the shape of the heat sink 11, so that when the lampshade is not in use, the tilting piece 10 can be retracted into the heat sink 11.

[0037] See also Figure 1 - Figure 3 A driving member corresponding to the second heat dissipation mechanism is arranged on the outer wall of the inner lampshade 2, and the driving member is composed of a transmission block 12 and a threaded sleeve 13, wherein the transmission block 12 is fixedly mounted on the top of the lifter 10, and a threaded sleeve 13 for squeezing the transmission block 12 is threadedly mounted on the outer wall of the inner lampshade 2. When the lifter 10 needs to be opened, the threaded sleeve 13 is rotated so that it starts to move downward under the action of the screw principle. In this process, the bottom of the threaded sleeve 13 squeezes the transmission block 12. Since the position where the lifter 10 is connected to the heat sink 6 is also at the top of the lifter 10, after the transmission block 12 is squeezed, the lifter 10 starts to rotate outward, causing the lifter 10 to be exposed;

[0038] In the example, a movable handle 14 is installed on the outer wall of the threaded sleeve 13 . When the threaded sleeve 13 needs to be rotated, the threaded sleeve 13 can be rotated by rotating the movable handle 14 .

[0039] See also Figure 1 - Figure 3A positioning ring 15 for limiting the threaded sleeve 13 is installed on the outer wall of the inner limit groove 8. At the same time, the positioning ring 15 is located above the threaded sleeve 13, so that after the threaded sleeve 13 starts to reset, its top will be in contact with the bottom of the positioning ring 15. At this time, the horizontal plane at the bottom end of the threaded sleeve 13 will be higher than the horizontal plane at the top end of the transmission block 12, so that the threaded sleeve 13 will not affect the transmission block 12 at this time.

[0040] The following is an exemplary description of the process of maintaining the limit ring 5 and the heat sink 6.

[0041] When it is necessary to remove the limiting ring 5 and the heat sink 6, first, release the restriction of the fixing mechanism 3 on the outer lampshade 1 and the inner lampshade 2, then pull the outer lampshade 1 and the inner lampshade 2 to separate the outer lampshade 1 and the inner lampshade 2, so that the extrusion restriction on the heat sink 6 is released, and then the limiting ring 5 and the heat sink 6 can be pulled out, and then the corresponding heat sink 6 can be removed for replacement;

[0042] After the heat sink 6 is replaced, the limit ring 5 is pushed into the inner lampshade 2 so that the outer wall of the limit ring 5 is in contact with the inner wall of the inner lampshade 2. At this time, the heat sink 6 will gradually enter the inner limit groove 8, and then the outer lampshade 1 is pushed toward the inner lampshade 2, so that the inner lampshade 2 begins to enter the outer lampshade 1, and at the same time, the heat sink 6 will enter the outer limit groove 7 until the two ends of the heat sink 6 are respectively in contact with the end face of the outer limit groove 7 and the end of the inner limit groove 8. At this time, the heat sink 6 will be supported and restricted by the outer limit groove 7 and the inner limit groove 8. Finally, the fixing mechanism 3 is used again to fix the outer lampshade 1, and the maintenance of the limit ring 5 and the heat sink 6 is completed.

[0043] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A heat dissipation lampshade for an LED lamp, comprising an outer lampshade (1), an inner lampshade (2), a fixing mechanism (3), a lens cover (4), a limiting ring (5) and a heat sink (6), characterized in that: The limiting ring (5) and the heat sink (6) are detachably connected, an outer limiting groove (7) corresponding to the heat sink (6) is provided at the end of the outer lampshade (1), an inner limiting groove (8) corresponding to the heat sink (6) is provided at the end of the inner lampshade (2), a limiting block (9) slidably connected to the inner limiting groove (8) is provided on the inner wall of the outer lampshade (1), a second heat dissipation mechanism is provided at the outer end of the heat sink (6), and a driving member corresponding to the second heat dissipation mechanism is provided on the outer wall of the inner lampshade (2).

2. The heat dissipation lampshade for LED lamp according to claim 1, characterized in that: The installation position of the limit block (9) is located below the outer limit groove (7), and the top corner of the limit block (9) is designed to be beveled.

3. The heat dissipation lampshade for LED lamp according to claim 1, characterized in that: The distance between the top end of the limiting block (9) and the bottom end of the outer limiting groove (7) is the same as the distance between the bottom end of the heat sink (6) and the bottom end of the limiting ring (5).

4. The heat dissipation lampshade for LED lamp according to claim 1, characterized in that: The second heat dissipation mechanism is composed of a tilting plate (10) and a heat dissipation groove (11), wherein the heat dissipation groove (11) is arranged at the outer end of the heat dissipation plate (6), and the heat dissipation groove (11) runs through the upper and lower ends and the outer end surface of the heat dissipation plate (6).

5. The heat dissipation lampshade for LED lamp according to claim 4, characterized in that: A tilting piece (10) rotatably mounted on the heat sink (6) is provided in the heat dissipation groove (11), and the tilting piece (10) corresponds to the shape of the heat dissipation groove (11).

6. The heat dissipation lampshade for LED lamp according to claim 5, characterized in that: The driving member is composed of a transmission block (12) and a threaded sleeve (13); the transmission block (12) is fixedly mounted on the top of the lifter (10), and a threaded sleeve (13) for squeezing the transmission block (12) is threadedly mounted on the outer wall of the inner lampshade (2); A movable handle (14) is installed on the outer wall of the threaded sleeve (13).

7. The heat dissipation lampshade for LED lamp according to claim 6, characterized in that: A positioning ring (15) for limiting the threaded sleeve (13) is installed on the outer wall of the inner limiting groove (8), and when the threaded sleeve (13) and the top end are in contact with the positioning ring (15), the horizontal plane at the bottom end of the threaded sleeve (13) is higher than the horizontal plane at the top end of the transmission block (12).

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