A flashlight facilitating heat dissipation efficiency

Abstract

The utility model relates to lighting technical field relates to a flashlight convenient to promote heat dissipation efficiency, including flashlight body, heat conduction spare, flashlight shell, light source module and heat dissipation fan, and is equipped with power supply in flashlight body, heat conduction spare is located power supply and is contacted with power supply, flashlight shell and flashlight body are fixed with each other, and the heat dissipation air duct is formed between flashlight shell and heat conduction spare, light source module and power supply electricity are connected, and light source module sets up one end of heat conduction spare and is close to heat conduction spare, heat dissipation fan and power supply electricity are connected, and heat dissipation fan installs in heat conduction spare one side and is located in heat dissipation air duct, wherein, flashlight shell is equipped with respectively with the heat dissipation air duct intercommunication heat dissipation air inlet and heat dissipation air outlet, and heat dissipation air inlet sets up correspondingly heat dissipation fan position, and heat dissipation air outlet is located flashlight shell near one end of light source module. This flashlight passes through the setting of heat conduction spare and heat dissipation air duct, can heat dissipation to light source module and power supply simultaneously, has improved the heat dissipation efficiency of flashlight.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and more specifically, to a flashlight that facilitates improved heat dissipation efficiency. Background Technology

[0002] Flashlights, as common portable lighting tools in daily life, are characterized by their portability and lightweight design. Long flashlights typically use LED light sources. When a long flashlight is used for an extended period, not only does the light source module generate a significant amount of heat, but the power supply also produces heat. If this heat is not dissipated in time, it will affect the lifespan of both the light source module and the power supply. To solve the heat dissipation problem of flashlights, a cooling fan can be added inside the flashlight for active cooling. However, when designing the air outlet of the cooling fan, if the air outlet is directed directly at the reflector housing of the fixed light source, it will not be able to simultaneously dissipate heat from other heat-generating components within the flashlight, resulting in limited cooling efficiency. Therefore, how to achieve a flashlight cooling structure that can simultaneously dissipate heat from multiple heat-generating components within the flashlight has become an urgent problem to be solved. Utility Model Content

[0003] The purpose of this invention is to overcome the problem that existing flashlights cannot dissipate heat from multiple heating elements simultaneously, and to provide a flashlight that facilitates improved heat dissipation efficiency, thereby improving the heat dissipation efficiency of the flashlight.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A flashlight with improved heat dissipation efficiency is provided, comprising a flashlight body, a heat-conducting component, a flashlight housing, a light source module, and a cooling fan. A power source is housed within the flashlight body. The heat-conducting component is located on and in contact with the power source. The flashlight housing is fixed to the flashlight body, and a heat dissipation channel is formed between the housing and the heat-conducting component. The light source module is electrically connected to the power source and is disposed at one end of the heat-conducting component and in close contact with it. The cooling fan is electrically connected to the power source and is mounted on one side of the heat-conducting component within the heat dissipation channel. The flashlight housing has a heat dissipation inlet and a heat dissipation outlet connected to the heat dissipation channel. The heat dissipation inlet corresponds to the position of the cooling fan, and the heat dissipation outlet is located at the end of the flashlight housing near the light source module.

[0005] In the technical solution of this application, the light source module generates a large amount of heat when it is working. The light source module is located at one end of the heat-conducting component and is in close contact with it, allowing the heat generated by the light source module to be conducted through the heat-conducting component. On the other hand, the power supply also generates a large amount of heat when it is working. The heat-conducting component is located on and in contact with the power supply, allowing the heat generated by the power supply to be conducted through the heat-conducting component as well. Since the heat-conducting component is equipped with a cooling fan corresponding to the heat dissipation inlet, a heat dissipation channel is formed between the heat-conducting component and the flashlight casing. External air enters through the heat dissipation inlet under the action of the cooling fan and then exchanges heat with the heat-conducting component through the heat dissipation channel, thereby cooling the heat-conducting component. The hot air that has exchanged heat with the heat-conducting component is finally blown out from the heat dissipation outlet. This flashlight, through the design of the heat-conducting component and the heat dissipation channel, can simultaneously dissipate heat from both the light source module and the power supply, improving the flashlight's heat dissipation efficiency.

[0006] Furthermore, the heat-conducting component has a first mounting cavity with an opening on the side opposite to the flashlight housing, and the power supply is installed in the first mounting cavity and in contact with the inner wall of the first mounting cavity.

[0007] Furthermore, the cooling fan is installed at the end of the heat-conducting component that is furthest from the light source module.

[0008] Furthermore, a mounting groove is recessed on the side of the heat-conducting component opposite to the power source, and the cooling fan portion is located in the mounting groove.

[0009] Furthermore, at least two protrusions are formed on the heat-conducting component along its length direction. The protrusions are in contact with the inner top surface of the flashlight housing, and the protrusions, together with the heat-conducting component and the flashlight housing, form the heat dissipation duct.

[0010] Furthermore, the heat-conducting component has strip-shaped heat dissipation fins spaced apart at one end near the light source module, and the heat dissipation fins are arranged along the length direction of the heat-conducting component; the heat dissipation outlet includes a plurality of spaced strip-shaped heat dissipation holes, the strip-shaped heat dissipation holes are arranged along the length direction of the flashlight housing, and the heat dissipation fins are disposed between two adjacent strip-shaped heat dissipation holes.

[0011] Furthermore, the heat dissipation fins are in contact with the inner top surface of the flashlight housing, and two adjacent heat dissipation fins form a flow channel with the flashlight housing, the flow channel connecting the heat dissipation duct and the heat dissipation outlet.

[0012] Furthermore, the heat-conducting component has a second mounting cavity formed at one end connected to the light source module, and the light source module is mounted in the second mounting cavity and connected to the inner bottom wall of the second mounting cavity.

[0013] Furthermore, the flashlight also includes a control module, which is electrically connected to the power supply, the light source module, and the cooling fan, respectively. The control module is located inside the flashlight body or at the end of the heat-conducting component away from the light source module.

[0014] Furthermore, the heat-conducting component has a third mounting cavity formed at the end away from the light source module, and the control module is installed in the third mounting cavity.

[0015] Compared with existing technologies, the beneficial effects of this invention are as follows: When the light source module is working, it generates a large amount of heat. The light source module is located at one end of the heat-conducting component and is in close contact with it, allowing the heat generated by the light source module to be conducted through the heat-conducting component. Conversely, the power supply also generates a large amount of heat when working. The heat-conducting component is located on and in contact with the power supply, allowing the heat generated by the power supply to be conducted through the heat-conducting component as well. Because the heat-conducting component has a cooling fan corresponding to the heat dissipation inlet, a heat dissipation channel is formed between the heat-conducting component and the flashlight casing. External air enters through the heat dissipation inlet under the action of the cooling fan and then exchanges heat with the heat-conducting component through the heat dissipation channel, thereby cooling the heat-conducting component. The hot air that has exchanged heat with the heat-conducting component is finally blown out from the heat dissipation outlet. This flashlight, through the design of the heat-conducting component and the heat dissipation channel, can simultaneously dissipate heat from both the light source module and the power supply, improving the flashlight's heat dissipation efficiency. Attached Figure Description

[0016] Figure 1 This is an exploded view of the flashlight according to the present invention, which facilitates improved heat dissipation efficiency; Figure 2 This is a schematic diagram of the structure of the flashlight with the light-transmitting plate removed, which is designed to improve heat dissipation efficiency according to this utility model. Figure 3 This is a schematic diagram of the structure of the flashlight of this utility model, which removes the light-transmitting plate and the reflector cup to improve heat dissipation efficiency; Figure 4 This is a perspective view of the flashlight according to the present invention, which facilitates improved heat dissipation efficiency; Figure 5 This is a front view of the flashlight of this utility model, which facilitates improved heat dissipation efficiency; Figure 6 for Figure 5 Cross-sectional view along the middle AA; Figure 7 for Figure 5 Cross-sectional view along the middle BB; Figure 8 This is a perspective view of the heat-conducting component in a flashlight, which is designed to improve heat dissipation efficiency according to this utility model. Figure 9This is a top-view perspective view of the heat-conducting component in a flashlight, which is designed to improve heat dissipation efficiency according to this utility model. Figure 10 This is a perspective view of the heat-conducting component in a flashlight, which is designed to improve heat dissipation efficiency.

[0017] In the attached diagram: 1. Flashlight body; 2. Power supply; 3. Heat-conducting component; 4. Flashlight housing; 5. Heat dissipation duct; 6. Light source module; 7. Cooling fan; 8. Airflow channel; 9. Control module; 10. Wire; 11. Limiting part; 12. Back clip; 41. Heat dissipation air inlet; 42. Heat dissipation air outlet; 31. First mounting cavity; 32. Mounting slot; 33. Heat dissipation fins; 34. Second mounting cavity; 35. Third mounting cavity; 36. Through hole; 37. Protrusion; 61. Light source; 62. Heat-conducting sheet; 63. Reflector; 64. Light-transmitting sheet. Detailed Implementation

[0018] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0019] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0020] Example 1 like Figure 1 , Figure 5 , Figure 6As shown, a flashlight that facilitates improved heat dissipation efficiency includes a flashlight body 1, a heat-conducting component 3, a flashlight housing 4, a light source module 6, and a cooling fan 7. A power supply 2 is housed within the flashlight body 1. The heat-conducting component 3 is located on and in contact with the power supply 2. The flashlight housing 4 is fixed to the flashlight body 1 and covers the heat-conducting component 3. A heat dissipation duct 5 is formed between the flashlight housing 4 and the heat-conducting component 3. The light source module 6 is electrically connected to the power supply 2 and is located at one end of the heat-conducting component 3, in close contact with it. The cooling fan 7 is electrically connected to the power supply 2 and is installed on the side of the heat-conducting component 3 away from the power supply 2, located within the heat dissipation duct 5. The flashlight housing 4 is provided with a heat dissipation inlet 41 and a heat dissipation outlet 42 connected to the heat dissipation duct 5. The heat dissipation inlet 41 corresponds to the position of the cooling fan 7, and the heat dissipation outlet 42 is located at the end of the flashlight housing 4 near the light source module 6.

[0021] In this embodiment, when the light source module 6 is working, it generates a large amount of heat. The light source module 6 is located at one end of the heat-conducting component 3 and is in close contact with it, allowing the heat generated by the light source module 6 to be conducted through the heat-conducting component 3. On the other hand, the power supply 2 also generates a large amount of heat when working. The heat-conducting component 3 is located on and in contact with the power supply 2, allowing the heat generated by the power supply 2 to also be conducted through the heat-conducting component 3. Since the heat-conducting component 3 is equipped with a cooling fan 7 corresponding to the heat dissipation inlet 41, a heat dissipation duct 5 is formed between the heat-conducting component 3 and the flashlight housing 4. External air enters through the heat dissipation inlet 41 under the action of the cooling fan 7 and then exchanges heat with the heat-conducting component 3 through the heat dissipation duct 5, thereby cooling the heat-conducting component 3. The hot air that has exchanged heat with the heat-conducting component 3 is finally blown out from the heat dissipation outlet 42. This flashlight, through the arrangement of the heat-conducting component 3 and the heat dissipation duct 5, can simultaneously dissipate heat from both the light source module 6 and the power supply 2, improving the flashlight's heat dissipation efficiency.

[0022] It should be noted that the mutual fixation of the flashlight body 1 and the flashlight housing 4 can be understood as follows: the flashlight body 1 and the flashlight housing 4 can be connected by snap-fit ​​or adhesive; the flashlight body 1 and the flashlight housing 4 can also be integrally molded, forming a structure with open ends; other structures that can connect the flashlight body 1 and the flashlight housing 4 are also within the protection scope of this embodiment. The flashlight housing 4 can also adopt a heat-conducting structure, specifically a metal structure. The heat conducted to the heat-conducting component 3 exchanges heat with the air flowing into the heat dissipation duct 5, and the air can also exchange heat with the flashlight housing 4, conducting heat to the flashlight housing 4, and then dissipating heat through heat exchange between the flashlight housing 4 and the outside environment, thereby further improving the overall heat dissipation efficiency of the flashlight. The cross-section of the flashlight body 1 is roughly U-shaped, and the power supply 2 is installed in this U-shaped structure. The heat-conducting component 3 is installed on the light source and together with the flashlight body 1 encloses the power supply 2. The heat generated by the power supply 2 during operation can be conducted through the heat-conducting component 3. When the flashlight housing 4 is connected to the flashlight body 1, the flashlight body 1 and the flashlight housing 4 enclose the heat-conducting component 3, and a heat dissipation airflow duct 5 is formed between the flashlight housing 4 and the heat-conducting component 3. Figure 3 As shown, the light source module 6 includes a light source 61 and a heat-conducting plate 62. The light source is electrically connected to the power supply 2 and the light source 61 is mounted on the heat-conducting plate 62. The heat-conducting plate 62 is connected to the heat-conducting component 3. The heat-conducting plate 62 conducts the heat generated by the light source 61 during operation to the heat-conducting component 3.

[0023] It should also be noted that the cooling fan 7 can be powered by the power supply 2. The cooling fan 7 is a centrifugal fan, and the cooling air inlet 41 and the cooling air outlet 42 are perpendicular to the flashlight housing 4 and are located on the flashlight housing 4. The rotation axis of the cooling fan 7 is parallel to the opening direction of the cooling air inlet 41 and the cooling air outlet 42. After the flashlight body 1 is connected to the flashlight housing 4, the overall shape formed by the flashlight body 1 and the flashlight housing 4 is roughly a flat structure.

[0024] like Figure 1 As shown, the flashlight body 1 has limiting portions 11 on two opposite sides, forming a limiting space. The heat-conducting component 3 is located in this limiting space, and the limiting portions 11 are in contact with both sides of the heat-conducting component 3 along its length, thus fixing the heat-conducting component 3. A through hole 36 is provided on the heat-conducting component 3, through which the wire 10 connecting the power supply 2 and the cooling fan 7 can pass. A back clip 12 is attached to the flashlight body 1 or the flashlight casing 4.

[0025] like Figure 1As shown, the cooling fan 7 is installed at the end of the heat-conducting component 3 furthest from the light source module 6. In this embodiment, since the light source module 6 is connected to the other end of the heat-conducting component 3, and the cooling fan 7 is installed at the end furthest from the heat-conducting component 3 and the light source module 6, the cooling fan 7 draws in outside air from the heat dissipation inlet 41. The air flows along one end of the heat-conducting component 3 towards the other end in the heat dissipation duct 5, and finally exits from the heat dissipation outlet 42. This significantly increases the area of ​​heat exchange between the outside air and the heat-conducting component 3, and also prolongs the heat exchange time, thereby improving the heat dissipation efficiency of the heat-conducting component 3.

[0026] like Figure 9 As shown, a mounting groove 32 is recessed on the side of the heat-conducting component 3 facing away from the power supply 2, and a portion of the cooling fan 7 is located in the mounting groove 32. In this embodiment, the cooling fan 7 has a certain thickness along its rotation axis. The mounting groove 32 is recessed on the heat-conducting component 3, and a portion of the cooling fan 7 is installed in this mounting groove 32, thereby reducing the space occupied by the cooling fan 7 in the thickness direction, and further reducing the overall thickness of the flashlight. In addition, the mounting groove 32 can provide a certain limiting function for the installation of the cooling fan 7.

[0027] like Figure 4 As shown, the flashlight also includes a control module 9, which is electrically connected to the power supply 2, the light source module 6, and the cooling fan 7. The control module 9 is located inside the flashlight body 1 or at the end of the heat-conducting component 3 away from the light source module 6. In this embodiment, the control module 9 is connected to the power supply 2, the light source module 6, and the cooling fan 7. The control module 9 can control the light source module 6 to turn on and off, and can also control the cooling fan 7 to start and stop. It should be noted that the control module 9 includes a control board and a control switch. The control board is connected to the control switch and is electrically connected to the power supply 2, the light source module 6, and the cooling fan 7. The control switch controls the working or stopping state of the light source module 6 and the cooling fan 7 through the control board. The control switch can be located at the tail of the flashlight body 1 or at the side of the flashlight body 1. However, considering the heat dissipation requirements, the control switch is generally located at the tail of the flashlight body 1. The control switch can be a push-button switch or a toggle switch. For ease of operation, the control switch located at the tail of the flashlight body 1 is generally a push-button switch.

[0028] like Figure 4 ,like Figure 9 , Figure 10As shown, the heat-conducting component 3 has a third mounting cavity 35 formed at the end away from the light source module 6, and the control module 9 is installed in the third mounting cavity 35. In this embodiment, the third mounting cavity 35 is formed at the tail end of the heat-conducting component 3 away from the light source module 6, and the outer wall of the third mounting cavity 35 is also clamped by the flashlight body 1 and the flashlight housing 4. The control module 9 is installed in the third mounting cavity, and the control module 9 is located in the third mounting cavity 35 at the tail end of the flashlight body 1, thereby facilitating the control of the light source module 6 and the cooling fan 7 of the flashlight body 1.

[0029] Example 2 The difference between this embodiment 2 and embodiment 1 is that, Figure 8 , Figure 10 As shown, the heat-conducting component 3 has an open first mounting cavity 31 on the side opposite to the flashlight housing 4. The power supply 2 is installed inside the first mounting cavity 31 and contacts the inner wall surface of the first mounting cavity 31. In this embodiment, since the heat-conducting component 3 has the first mounting cavity 31, and the power supply 2 is installed inside the first mounting cavity 31 and contacts the inner wall surface of the first mounting cavity 31, the power supply 2 is enclosed by the flashlight body 1 and the first mounting cavity 31. The power supply 2 will contact at least five inner wall surfaces of the first mounting cavity 31. The heat generated by the power supply 2 during operation can be conducted through the inner wall surface of the heat-conducting component 3 in contact with the power supply 2 to the upper surface of the heat-conducting component 3, which forms a heat dissipation channel 5 with the flashlight body 1. It should also be noted that the first mounting cavity 31 can also be used to accommodate subsequent control boards and electronic components.

[0030] like Figure 8 As shown, the heat-conducting component 3 has a second mounting cavity 34 formed at one end connected to the light source module 6. The light source module 6 is mounted in the second mounting cavity 34 and connected to the inner bottom wall of the second mounting cavity 34. It should be noted that when the flashlight housing 4 is connected to the flashlight body 1, the flashlight body 1 and the flashlight housing 4 clamp the second mounting cavity 34 inside, and the light source module 6 is mounted in this second mounting cavity 34. Figure 3 As shown, the light source module 6 includes a light source 61 and a heat-conducting plate 62. The heat-conducting plate 62 is connected to the inner bottom wall of the second mounting cavity 34, thereby conducting the heat generated by the light source 61 to the heat-conducting component 3 through the heat-conducting plate 62. It should also be noted that a reflector 63 is also installed in the second mounting cavity 34, such as... Figure 2 As shown, the light projected by the light source 61 can be projected through the reflector 63. The second mounting cavity 34 has an opening in which a light-transmitting sheet 64 is installed. The light-transmitting sheet 64 is used to seal the second mounting cavity 34 and is located at the front end of the reflector 63.

[0031] Example 3 The difference between this embodiment 3 and embodiment 1 is that, Figure 1 , Figure 9As shown, at least two protrusions 37 are formed along the length of the heat-conducting component 3. The protrusions 37 are in contact with the inner top surface of the flashlight housing 4, and the protrusions 37, together with the heat-conducting component 3 and the flashlight housing 4, form a heat dissipation channel 5. In this embodiment, the protrusions 37 can, on the one hand, confine the air flow within the heat dissipation channel 5 formed by the two protrusions 37 and the flashlight housing 4; on the other hand, the protrusions 37 can also support the flashlight housing 4.

[0032] like Figure 1 , Figure 9 As shown, the heat-conducting component 3 has strip-shaped heat dissipation fins 33 spaced apart at one end near the light source module 6, and the heat dissipation fins 33 are arranged along the length direction of the heat-conducting component 3. The heat dissipation outlet 42 includes a plurality of spaced strip-shaped heat dissipation holes, which are arranged along the length direction of the flashlight housing 4, and the heat dissipation fins 33 are disposed between two adjacent strip-shaped heat dissipation holes. In this embodiment, the heat dissipation fins 33 increase the area for heat exchange between the heat-conducting component 3 and the air, thereby improving the heat dissipation efficiency. Since the heat dissipation fins 33 are disposed between two strip-shaped heat dissipation holes, air can flow in from the two adjacent heat dissipation fins 33 and then be discharged to the outside through the strip-shaped heat dissipation holes.

[0033] like Figure 7 As shown, the heat dissipation fins 33 are in contact with the inner top surface of the flashlight housing 4. Two adjacent heat dissipation fins 33 and the flashlight housing 4 form a flow channel 8, which connects the heat dissipation duct 5 and the heat dissipation outlet 42. In this embodiment, the contact between the heat dissipation fins 33 and the inner top surface of the flashlight housing 4 allows heat from the heat-conducting component 3 to be transferred to the flashlight housing 4, thereby improving the heat dissipation effect. Furthermore, the flow channel 8 formed by the heat dissipation fins 33 and the flashlight housing 4 allows hot air from the heat dissipation duct 5, which has exchanged heat with the heat-conducting component 3, to be discharged through the heat dissipation outlet 42. It should also be noted that the portion of the flashlight housing 4 connected to the heat dissipation fins 33 protrudes outwards relative to the portion connected to the protrusion 37. This makes the flashlight at the protrusion 37 portion thicker than the portion connected to the heat dissipation fins 33, improving the grip.

[0034] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0035] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A flashlight that facilitates improved heat dissipation efficiency, characterized in that, include: The flashlight body (1) is equipped with a power source (2). A heat-conducting component (3) is located on the power source (2) and is in contact with the power source (2); The flashlight housing (4) is fixed to the flashlight body (1), and a heat dissipation duct (5) is formed between the flashlight housing (4) and the heat-conducting component (3). A light source module (6) is electrically connected to the power supply (2), and the light source module (6) is disposed at one end of the heat-conducting component (3) and is in close contact with the heat-conducting component (3); and Cooling fan (7), the cooling fan (7) is electrically connected to the power supply (2), the cooling fan (7) is installed on one side of the heat-conducting component (3) and located in the heat dissipation duct (5); The flashlight housing (4) is provided with a heat dissipation air inlet (41) and a heat dissipation air outlet (42) that are connected to the heat dissipation air duct (5). The heat dissipation air inlet (41) is located at the position of the heat dissipation fan (7), and the heat dissipation air outlet (42) is located at the end of the flashlight housing (4) near the light source module (6).

2. The flashlight according to claim 1, which facilitates improved heat dissipation efficiency, is characterized in that... The heat-conducting component (3) has a first mounting cavity (31) with an opening on the side opposite to the flashlight housing (4), and the power supply (2) is installed in the first mounting cavity (31) and is in contact with the inner wall of the first mounting cavity (31).

3. The flashlight according to claim 1, which facilitates improved heat dissipation efficiency, is characterized in that... The cooling fan (7) is installed at the end of the heat-conducting component (3) away from the light source module (6).

4. The flashlight according to claim 3, which facilitates improved heat dissipation efficiency, is characterized in that... The heat-conducting component (3) has a recessed mounting groove (32) on the side opposite to the power supply (2), and the cooling fan (7) is partially located in the mounting groove (32).

5. The flashlight according to claim 1, characterized in that, At least two protrusions (37) are formed along the length of the heat-conducting component (3). The protrusions (37) are in contact with the inner top surface of the flashlight housing (4). The protrusions (37), the heat-conducting component (3), and the flashlight housing (4) together form the heat dissipation duct (5).

6. The flashlight according to claim 5, which facilitates improved heat dissipation efficiency, is characterized in that... The heat-conducting component (3) has strip-shaped heat dissipation fins (33) spaced apart at one end near the light source module (6), and the heat dissipation fins (33) are arranged along the length direction of the heat-conducting component (3); the heat dissipation outlet (42) includes a number of spaced strip-shaped heat dissipation holes, the strip-shaped heat dissipation holes are arranged along the length direction of the flashlight housing (4), and the heat dissipation fins (33) are arranged between two adjacent strip-shaped heat dissipation holes.

7. The flashlight according to claim 6, which facilitates improved heat dissipation efficiency, is characterized in that... The heat dissipation fins (33) are in contact with the inner top surface of the flashlight housing (4), and two adjacent heat dissipation fins (33) and the flashlight housing (4) form a flow channel (8), which connects the heat dissipation duct (5) and the heat dissipation outlet (42).

8. The flashlight according to claim 1, characterized in that, The heat-conducting component (3) has a second mounting cavity (34) at one end connected to the light source module (6). The light source module (6) is installed in the second mounting cavity (34) and connected to the inner bottom wall of the second mounting cavity (34).

9. The flashlight according to any one of claims 1 to 8, characterized in that, The flashlight also includes a control module (9), which is electrically connected to the power supply (2), the light source module (6) and the cooling fan (7) respectively. The control module (9) is located inside the flashlight body (1) or at the end of the heat-conducting component (3) away from the light source module (6).

10. The flashlight according to claim 9, which facilitates improved heat dissipation efficiency, is characterized in that... The heat-conducting component (3) has a third mounting cavity (35) formed at the end away from the light source module (6), and the control module (9) is installed in the third mounting cavity (35).

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