Heat dissipation structure of high-power flashlight

By using a metal bracket as a heat dissipation fin on the mobile phone flashlight, and utilizing the connecting block and lamp holder connecting plate and groove structure, combined with heat dissipation silicone, the problem of poor heat dissipation efficiency of mobile phone flashlights is solved, achieving efficient heat dissipation, simplifying the structure, and reducing space occupation.

CN223840324UActive Publication Date: 2026-01-27SHENZHEN ULEFONE TECH CO LTD
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Patent Information

Application Number
CN202520616435.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-01-27
Estimated Expiration
2035-04-03

AI Technical Summary

Technical Problem

Existing mobile phone flashlights have poor heat dissipation efficiency when operating at high power for extended periods, resulting in severe overheating and affecting the overall performance of the phone. Furthermore, existing heat dissipation designs are complex and space-consuming.

Method used

A metal bracket is used as a heat dissipation fin. The mobile phone flashlight is directly installed on the bracket through the connecting piece and groove structure of the connecting block and lamp holder, and filled with heat dissipation silicone. The existing hardware bracket is used to increase the heat dissipation area, simplify the structure and reduce space occupation.

Benefits of technology

It achieves efficient heat dissipation for mobile phone flashlights, simplifies the structure, reduces space occupation, and improves user experience and assembly convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of mobile phone appliances, and discloses a high-power flashlight heat dissipation structure, which comprises a support arranged in a rear shell of a mobile phone and a mobile phone flashlight arranged on the support, a light hole is formed in the side edge of the rear shell of the mobile phone, and one end, close to the light hole, of the support extends towards the light hole to form a connecting part. The end part, close to the light hole, of the connecting part is bent towards the rear shell of the mobile phone to form a connecting block; the mobile phone flashlight comprises a lamp holder, one side of the lamp holder is a light-emitting side, and the other side of the lamp holder is a connecting side. A heat dissipation groove is formed in the end, close to the connecting side, of the connecting block, a first connecting piece and a first connecting groove are arranged on the two sides of the heat dissipation groove respectively, and a second connecting groove and a second connecting piece are arranged at the positions, corresponding to the first connecting piece and the first connecting groove respectively, of the connecting side of the lamp holder. And the second connecting piece is inserted into the first connecting groove, so that the lamp holder is connected with the connecting block. The scheme is simple in structure, and the heat dissipation efficiency of the mobile phone flashlight is improved.
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Description

Technical Field

[0001] This utility model relates to the field of mobile phone accessories, specifically to a heat dissipation structure for a high-power flashlight. Background Technology

[0002] With the rapid development of electronic technology, mobile phones have become indispensable daily necessities. A mobile phone typically consists of a back cover, battery, stand, motherboard, and screen. To make mobile phones more versatile, more components have been added, among which the mobile phone flashlight is a common one. The mobile phone flashlight is activated by a function key on the front or back of the phone, keeping it constantly lit. However, LEDs operating at maximum power for extended periods generate significant heat, necessitating heat dissipation for the flashlight area.

[0003] However, existing mobile phones lack effective heat dissipation devices specifically for flashlights, easily leading to overheating in the flashlight area and affecting the overall performance of the phone. While some mobile phone flashlights incorporate heat sinks, this design not only makes the structure complex and bulky but also requires a significant amount of internal space, taking up too much space and failing to meet the requirements. Therefore, there is a need for a simple, high-power flashlight heat dissipation structure that effectively improves the heat dissipation of mobile phone flashlights. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a novel heat dissipation structure for high-power flashlights, thereby solving the problem of poor heat dissipation efficiency in existing mobile phone flashlights.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-power flashlight heat dissipation structure for mobile phone flashlight heat dissipation includes a bracket installed inside the back cover of the mobile phone and a mobile phone flashlight disposed on the bracket. A light-transmitting hole is opened on the side of the back cover of the mobile phone. One end of the bracket near the light-transmitting hole extends towards the light-transmitting hole to form a connecting part. The end of the connecting part near the light-transmitting hole bends towards the back cover of the mobile phone to form a connecting block.

[0007] The mobile phone flashlight includes a lamp holder, one side of which is the light-emitting side facing the light-transmitting hole, and the other side is the connecting side, which is set corresponding to the connecting block;

[0008] A heat dissipation groove is formed at one end of the connecting block near the connecting side, and a first connecting piece and a first connecting groove are respectively provided on both sides of the heat dissipation groove. A second connecting groove and a second connecting piece are respectively provided on the connecting side of the lamp holder corresponding to the positions of the first connecting piece and the first connecting groove. The lamp holder and the connecting block are connected by inserting the first connecting piece into the second connecting groove and the second connecting piece into the first connecting groove.

[0009] Furthermore, on the side of the connecting block away from the heat dissipation groove, multiple heat dissipation protrusions are spaced apart along a direction perpendicular to itself.

[0010] Furthermore, all of the aforementioned heat dissipation bumps are block-shaped structures.

[0011] Furthermore, the bracket is a metal bracket, and it is an integral structure with the connecting part, the connecting block and the heat dissipation protrusion.

[0012] Furthermore, at one end of the connecting block near the connecting side, a protrusion is provided on one side of the heat dissipation groove, and extends and bends outward to form a first connecting piece.

[0013] Furthermore, a recessed groove is formed on the other side of the heat dissipation groove at one end of the connecting block near the connecting side to form a first connecting groove.

[0014] Furthermore, the lamp holder has a recessed light source position on its light-emitting side, and a light source is provided in the recessed light source position.

[0015] Furthermore, a connector is provided on one side of the lamp holder, and the connector is connected to the light source.

[0016] Furthermore, an annular groove is formed along the outer periphery of the end of the lamp holder near the light-emitting side, and a sealing ring is provided in the annular groove.

[0017] Furthermore, a light-transmitting plate is provided at the light-transmitting hole.

[0018] Compared to existing technologies, the advantages of this invention are that, by adopting the above solution, the structure is simple. First, the lamp holder of the mobile phone flashlight is pressed against the connecting block of the bracket, so that the first connecting piece on the connecting block is inserted into the second connecting groove on the lamp holder, and the second connecting piece on the lamp holder is inserted into the first connecting groove on the connecting block. Then, the heat dissipation groove is filled with heat dissipation silicone, so that the mobile phone flashlight is directly installed on the bracket, and the bracket acts as the flashlight heat sink, thereby simplifying the structure of the mobile phone flashlight and reducing the space occupied. This solution directly connects the back of the flashlight to the hardware bracket of the whole machine, using the hardware bracket as the heat dissipation fins, reducing the need for separate heat dissipation materials, and using less space. Holes are drilled between the flashlight and the hardware bracket, and heat dissipation silicone is applied to ensure fuller contact, making better use of the existing hardware bracket and increasing the heat dissipation area. This allows the mobile phone flashlight to be used for a long time without any problems. It is not only convenient for users to use, but also easy to assemble, and has good market application value. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the heat dissipation structure of a high-power flashlight according to an embodiment of the present invention;

[0020] Figure 2 For the present utility model Figure 1 Cross-sectional view of the heat dissipation structure of the high-power flashlight in the embodiment;

[0021] Figure 3 For the present utility model Figure 1 A schematic diagram of the structure of the mobile phone flashlight and the connecting part in the embodiment;

[0022] Figure 4 For the present utility model Figure 1 A schematic diagram of the structure of the lamp holder and connecting block in the embodiment;

[0023] In the diagram, 1. Phone back cover; 11. Stand; 12. Light-transmitting hole; 13. Light-transmitting plate; 2. Phone flashlight; 21. Lamp holder; 22. Light source; 23. Recessed light source position; 24. Second connecting groove; 25. Second connecting piece; 26. Connector; 27. Sealing ring; 3. Connecting part; 31. Connecting block; 32. Heat dissipation groove; 33. Heat dissipation protrusion; 34. First connecting piece; 35. First connecting groove. Detailed Implementation

[0024] To facilitate understanding of this utility model by those skilled in the art, specific embodiments of this utility model are described below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described in this specification. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0025] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "mounted," "fixed," "top," "bottom," and similar expressions used in this specification are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0027] One embodiment of this utility model is as follows: Figure 1 , 3 As shown, this high-power flashlight heat dissipation structure is used for heat dissipation of the mobile phone flashlight 2. It includes a bracket 11 installed inside the back cover 1 of the mobile phone and the mobile phone flashlight 2 set on the bracket 11. A light-transmitting hole 12 is opened on the side of the back cover 1 of the mobile phone. One end of the bracket 11 near the light-transmitting hole 12 extends towards the light-transmitting hole 12 to form a connecting part 3. The end of the connecting part 3 near the light-transmitting hole 12 bends towards the back cover 1 of the mobile phone to form a connecting block 31.

[0028] The mobile phone flashlight 2 includes a lamp holder 21, one side of which is the light-emitting side facing the light-transmitting hole 12, and the other side is the connecting side, which is set corresponding to the connecting block 31;

[0029] A heat dissipation groove 32 is formed at one end of the connecting block 31 near the connecting side, and a first connecting piece 34 and a first connecting groove 35 are respectively provided on both sides of the heat dissipation groove 32. A second connecting groove 24 and a second connecting piece 25 are respectively provided on the connecting side of the lamp holder 21 corresponding to the positions of the first connecting piece 34 and the first connecting groove 35. The lamp holder 21 and the connecting block 31 are connected by inserting the first connecting piece 34 into the second connecting groove 24 and the second connecting piece 25 into the first connecting groove 35.

[0030] This high-power flashlight heat dissipation structure is suitable for heat dissipation of the mobile phone flashlight 2. First, the lamp holder 21 of the mobile phone flashlight 2 is pressed against the connecting block 31 of the bracket 11, so that the first connecting piece 34 on the connecting block 31 is inserted into the second connecting groove 24 on the lamp holder 21, and the second connecting piece 25 on the lamp holder 21 is inserted into the first connecting groove 35 on the connecting block 31. Then, the heat dissipation groove 32 is filled with heat dissipation silicone, so that the mobile phone flashlight 2 can be directly installed on the bracket 11, and the bracket 11 acts as the flashlight heat sink, simplifying the structure of the mobile phone flashlight 2 and reducing the space occupied. This solution directly connects the back of the flashlight to the hardware bracket 11 of the whole machine, using the hardware bracket 11 as the heat dissipation fin, reducing the need for separate heat dissipation materials, and using less space. Holes are drilled between the flashlight and the hardware bracket 11, and heat dissipation silicone is applied to make the contact more sufficient, making better use of the existing hardware bracket 11 and increasing the heat dissipation area. This allows the mobile phone flashlight 2 to be used for a long time without being affected.

[0031] In this embodiment, as Figure 3 As shown, the connecting block 31 has multiple heat dissipation protrusions 33 spaced apart along a direction perpendicular to itself on the side away from the heat dissipation groove 32.

[0032] Specifically, the bracket 11 is installed inside the back cover 1 of the mobile phone, the screen of the mobile phone is installed on the front side of the back cover 1, a light-transmitting hole 12 is opened on the upper side of the back cover 1, the upper end of the bracket 11 extends upward to form a connecting part 3, and its upper end is bent vertically backward to form a connecting block 31.

[0033] Specifically, a heat dissipation groove 32 is provided on the upper side of the connecting block 31, and the heat dissipation groove 32 is connected to the rear side of the connecting block 31 to facilitate the filling of heat dissipation silicone. A heat dissipation protrusion 33 is provided vertically downward on the lower side of the connecting block 31.

[0034] In this embodiment, as Figure 3 As shown, all of the heat dissipation bumps 33 are block-shaped structures.

[0035] Specifically, the heat dissipation protrusion 33 is vertically downwardly disposed on the bracket 11 along the lower side of the connecting block 31, and extends rearward to form a strip shape, thereby forming heat dissipation fins on the bracket 11 to facilitate heat dissipation for the mobile phone flashlight 2.

[0036] In this embodiment, as Figure 2 As shown, the bracket 11 is a metal bracket, which is an integral structure with the connecting part 3, the connecting block 31 and the heat dissipation protrusion 33.

[0037] Specifically, the bracket 11, the connecting part 3, the connecting block 31, and the heat dissipation protrusion 33 are integrally formed of iron or copper materials. The bracket 11 serves as the connection and heat dissipation structure of the mobile phone flashlight 2, which not only simplifies the structure of the mobile phone flashlight 2 but also reduces its space occupation.

[0038] In this embodiment, as Figure 4 As shown, the end of the connecting block 31 near the connecting side has a protrusion on one side of the heat dissipation groove 32, and extends and bends outward to form a first connecting piece 34.

[0039] Specifically, the heat dissipation groove 32 is recessed in the middle of the top of the connecting block 31, and a protrusion is provided on the left side of the heat dissipation groove 32, which extends and bends to the left to form a first connecting piece 34. The first connecting piece 34 includes a joining section, a bending section and an extension section. The joining section is connected to the protrusion, and the joining section is connected to the extension section through the bending section. The joining section, the bending section and the extension section are an integral structure.

[0040] In this embodiment, as Figure 4 As shown, the connecting block 31 has a recessed groove on one end near the connecting side, and the other side of the heat dissipation groove 32 forms a first connecting groove 35.

[0041] Specifically, the top of the connecting block 31 is recessed into the right side of the heat dissipation groove 32 to form a first connecting groove 35. The bottom right side of the lamp holder 21 is provided with a downwardly protruding second connecting piece 25 corresponding to the position of the first connecting groove 35. The second connecting piece 25 and the first connecting piece 34 have the same structure. During assembly, the bracket 11 is flipped so that its rear side faces forward. The lamp holder 21 of the mobile phone flashlight 2 is pressed down against the connecting block 31 of the bracket 11, so that the first connecting piece 34 on the connecting block 31 is inserted into the second connecting groove 24 on the lamp holder 21, and the second connecting piece 25 on the lamp holder 21 is inserted into the first connecting groove 35 on the connecting block 31.

[0042] In this embodiment, as Figure 2 As shown, the light-emitting side of the lamp holder 21 is provided with a recessed light source position 23, and a light source 22 is provided in the recessed light source position 23.

[0043] Specifically, the upper side of the lamp holder 21 is the light-emitting side, and a recessed light source position 23 is provided. A light source 22 is provided at the bottom of the recessed light source position 23. The depth of the recessed light source position 23 is less than the thickness of the lamp holder 21. A reflective layer is coated along the inner surface of the recessed light source position 23. The light source 22 is an LED light-emitting diode.

[0044] In this embodiment, as Figure 3As shown, a connector 26 is provided on one side of the lamp holder 21, and the connector 26 is connected to the light source 22.

[0045] Specifically, the mobile phone flashlight 2 is connected to the mobile phone motherboard through the connector 26 to control the LED's on / off state and brightness adjustment. The user can press the flashlight button on the mobile phone to trigger the circuit control part, which will make the LED light-emitting diode work and thus light up the flashlight.

[0046] In this embodiment, as Figure 3 As shown, the lamp holder 21 has an annular groove along its outer periphery at the end near the light-emitting side, and a sealing ring 27 is provided in the annular groove.

[0047] Specifically, an annular groove is formed on the top of the lamp holder 21 along its outer periphery, and a sealing ring 27 is provided in the annular groove. The sealing ring 27 is connected to the inner wall of the light-transmitting hole 12 to achieve the sealing of the mobile phone flashlight 2.

[0048] In this embodiment, as Figure 2 As shown, a light-transmitting plate 13 is provided at the light-transmitting hole 12.

[0049] Specifically, the light-transmitting plate 13 is connected to the side wall of the outer end of the light-transmitting hole 12 through the sealing ring 27, further enhancing the sealing of the mobile phone flashlight 2.

[0050] In this embodiment, as Figure 1 As shown, the bracket 11 is provided with a plurality of screws, and is fixed to the inside of the back cover 1 of the mobile phone by the plurality of screws.

[0051] It should be noted that the above-mentioned technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification; and, for those skilled in the art, improvements or modifications can be made based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims of this utility model.

Claims

1. A heat dissipation structure for a high-power flashlight, used for heat dissipation of a mobile phone flashlight (2), characterized in that: Includes a bracket (11) installed inside the back cover (1) of a mobile phone and a mobile phone flashlight (2) set on the bracket (11). A light-transmitting hole (12) is opened on the side of the back cover (1). The bracket (11) extends towards the light-transmitting hole (12) from one end close to the light-transmitting hole (12) to form a connecting part (3). The connecting part (3) bends towards the back cover (1) of the mobile phone from the end close to the light-transmitting hole (12) to form a connecting block (31). The mobile phone flashlight (2) includes a lamp holder (21), one side of which is the light-emitting side facing the light-transmitting hole (12), and the other side is the connecting side, which is set corresponding to the connecting block (31); The connecting block (31) has a heat dissipation groove (32) at one end near the connecting side, and a first connecting piece (34) and a first connecting groove (35) are respectively provided on both sides of the heat dissipation groove (32). The connecting side of the lamp holder (21) is provided with a second connecting groove (24) and a second connecting piece (25) corresponding to the positions of the first connecting piece (34) and the first connecting groove (35). The first connecting piece (34) is inserted into the second connecting groove (24), and the second connecting piece (25) is inserted into the first connecting groove (35) so that the lamp holder (21) and the connecting block (31) are connected.

2. The high-power flashlight heat dissipation structure according to claim 1, characterized in that, On the side of the connecting block (31) away from the heat dissipation groove (32), a plurality of heat dissipation protrusions (33) are arranged at intervals along a direction perpendicular to itself.

3. The high-power flashlight heat dissipation structure according to claim 2, characterized in that, All of the heat dissipation bumps (33) are block-shaped structures.

4. The high-power flashlight heat dissipation structure according to claim 2, characterized in that, The bracket (11) is a metal bracket, which is an integral structure with the connecting part (3), the connecting block (31) and the heat dissipation protrusion (33).

5. The heat dissipation structure for a high-power flashlight according to claim 1, characterized in that, The connecting block (31) near the connecting side has a protrusion on one side of the heat dissipation groove (32) and extends and bends outward to form a first connecting piece (34).

6. The heat dissipation structure for a high-power flashlight according to claim 5, characterized in that, The connecting block (31) has a recessed groove on one end near the connecting side, and the heat dissipation groove (32) on the other side to form a first connecting groove (35).

7. The high-power flashlight heat dissipation structure according to claim 1, characterized in that, The lamp holder (21) has a recessed light source position (23) on its light-emitting side, and a light source (22) is provided in the recessed light source position (23).

8. The high-power flashlight heat dissipation structure according to claim 7, characterized in that, A connector (26) is provided on one side of the lamp holder (21), and the connector (26) is connected to the light source (22).

9. The heat dissipation structure for a high-power flashlight according to claim 8, characterized in that, The lamp holder (21) has an annular groove along its outer periphery at the end near the light-emitting side, and a sealing ring (27) is provided in the annular groove.

10. The heat dissipation structure for a high-power flashlight according to claim 9, characterized in that, A light-transmitting plate (13) is provided at the light-transmitting hole (12).