Flashlight with active heat dissipation function

Abstract

The utility model relates to the technical field of flashlight, disclose the flashlight with initiative heat dissipation function, wherein, including the flashlight body and the flashlight head of detachable connection in flashlight body upper end, the flashlight head includes the heat dissipation bin and the head cover, the heat dissipation bin is the hollow structure of both ends opening, one end of heat dissipation bin with detachable connection of flashlight body upper end, the head cover with one end of heat dissipation bin far from detachable connection of flashlight body, one end of setting up light source subassembly in the heat dissipation bin near the head cover, the heat dissipation bin near one end of setting up circuit mainboard in flashlight body, the heat dissipation bin is between light source subassembly and circuit mainboard and sets up the heat dissipation fan, the heat dissipation fan with light source subassembly with circuit mainboard electricity is connected, the corresponding air inlet and air outlet are seted up on the outer peripheral wall of heat dissipation bin in the corresponding position of heat dissipation fan. Through the utility model can effectively promote the heat dissipation performance of flashlight.

Description

Technical Field

[0001] This utility model relates to the field of flashlight technology, specifically to a flashlight with active heat dissipation function. Background Technology

[0002] Currently, with the continuous development of technology, flashlights are increasingly widely used as portable lighting tools in daily life and professional fields. Traditional flashlights mainly consist of a flashlight body, a light source component, and a power supply. While their structure is simple, they have some limitations. For example, when a flashlight is used at high brightness or for extended periods, the light source component (such as LED beads) generates a large amount of heat. If this heat cannot be dissipated in time, it will cause the temperature of the light source component to rise, thus affecting its luminous efficiency and lifespan.

[0003] To improve the heat dissipation performance of flashlights, some improvements have been implemented in existing technologies. For example, some flashlights employ passive cooling, increasing the heat dissipation area by incorporating heat sinks or ventilation holes on the flashlight body, thereby improving heat dissipation efficiency. However, the heat dissipation effect of passive cooling methods is limited, especially under high power or prolonged use, and still falls short of meeting heat dissipation requirements. Furthermore, some flashlights attempt to reduce heat generation by improving the structure or materials of the light source components, but these methods offer limited improvement in heat dissipation.

[0004] Therefore, how to provide a flashlight with active heat dissipation function that can effectively improve the heat dissipation performance of the flashlight is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a flashlight with active heat dissipation function, aiming to solve the problem of how to effectively improve the heat dissipation performance of the flashlight.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A flashlight with active heat dissipation function includes a flashlight body and a flashlight head detachably connected to the upper end of the flashlight body; The flashlight head includes a heat dissipation chamber and a head cover. The heat dissipation chamber is a hollow structure with openings at both ends. One end of the heat dissipation chamber is detachably connected to the upper end of the flashlight body, and the head cover is detachably connected to the end of the heat dissipation chamber away from the flashlight body. A light source assembly is provided at one end of the heat dissipation chamber near the head cover, and a circuit board is provided at one end of the heat dissipation chamber near the flashlight body. A cooling fan is provided between the light source assembly and the circuit board in the heat dissipation chamber. The cooling fan and the light source assembly are electrically connected to the circuit board. Corresponding air inlets and outlets are provided on the outer peripheral wall of the heat dissipation chamber at the corresponding positions of the cooling fan.

[0007] In a further technical solution, the flashlight with active heat dissipation function includes a battery installed inside the flashlight body, and the battery is electrically connected to the circuit board.

[0008] In a further technical solution, the flashlight with active heat dissipation function uses a 4695 large cylindrical battery cell as its battery.

[0009] In a further technical solution, the flashlight with active heat dissipation function has a switch receiving cavity opened on the outer peripheral wall of the heat dissipation chamber at a corresponding position of the circuit main board, and a flashlight switch electrically connected to the circuit main board is installed in the switch receiving cavity.

[0010] In a further technical solution, the flashlight with active heat dissipation function has a tail cap detachably connected to the end of the flashlight body away from the flashlight head.

[0011] In a further technical solution, the flashlight with active heat dissipation function includes an aluminum lamp cup installed in the heat dissipation chamber near one end of the head cover and a light-emitting element installed in the aluminum lamp cup and electrically connected to the circuit board.

[0012] In a further technical solution, the flashlight with active heat dissipation function has an LED light-emitting element, and a copper substrate is connected to the bottom of the light-emitting element.

[0013] Compared to existing technologies, this utility model provides a flashlight with active heat dissipation, comprising a flashlight body and a flashlight head detachably connected to the upper end of the flashlight body. The flashlight head includes a heat dissipation chamber and a head cover. The heat dissipation chamber is a hollow structure with openings at both ends. One end of the heat dissipation chamber is detachably connected to the upper end of the flashlight body, and the head cover is detachably connected to the end of the heat dissipation chamber away from the flashlight body. A light source assembly is disposed within the heat dissipation chamber near the head cover, and a circuit board is disposed within the heat dissipation chamber near the flashlight body. A cooling fan is disposed within the heat dissipation chamber between the light source assembly and the circuit board. The cooling fan and the light source assembly are electrically connected to the circuit board. Corresponding air inlets and outlets are provided on the outer peripheral wall of the heat dissipation chamber at the corresponding positions of the cooling fan. Thus, this utility model effectively improves the heat dissipation performance of the flashlight. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of a flashlight with active heat dissipation function provided in an embodiment of the present invention. Detailed Implementation

[0016] To make the objectives, technical solutions, and effects of this utility model clearer and more explicit, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0017] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," and "right," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or an electrical signal connection (meaning that there is both an electrical connection and a signal connection between the two); they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. When a component is referred to as being "fixed to" or "set on" another element, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intervening component. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0019] In the description of this utility model, the terms "comprising," "including," "having," and "containing" are all open-ended terms, meaning that they include but are not limited to. The terms "one embodiment," "one specific embodiment," "some embodiments," and "for example," etc., refer to specific features, structures, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. The order of steps involved in each embodiment is used to illustrate the implementation of this application, and the order of steps is not limited and can be adjusted appropriately as needed.

[0020] The various non-limiting embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0021] Please see Figure 1 This utility model embodiment provides a flashlight with active heat dissipation function, which includes a flashlight body 1 and a flashlight head 2 detachably connected to the upper end of the flashlight body 1; The flashlight head 2 includes a heat dissipation chamber 21 and a head cover 22. The heat dissipation chamber 21 is a hollow structure with openings at both ends. One end of the heat dissipation chamber 21 is detachably connected to the upper end of the flashlight body 1. The head cover 22 is detachably connected to the end of the heat dissipation chamber 21 away from the flashlight body 1. A light source assembly 23 is provided inside the heat dissipation chamber 21 near one end of the head cover 22. A circuit board 24 is provided inside the heat dissipation chamber 21 near one end of the flashlight body 1. A cooling fan 25 is provided inside the heat dissipation chamber 21 between the light source assembly 23 and the circuit board 24. The cooling fan 25 and the light source assembly 23 are electrically connected to the circuit board 24. Corresponding air inlets 26 and air outlets 27 are provided on the outer peripheral wall of the heat dissipation chamber 21 at the corresponding positions of the cooling fan 25.

[0022] Furthermore, in the aforementioned flashlight with active heat dissipation function, a battery 11 is provided inside the flashlight body 1, and the battery 11 is electrically connected to the circuit board 24.

[0023] Furthermore, in the aforementioned flashlight with active heat dissipation function, the battery 11 is a 4695 large cylindrical cell.

[0024] Furthermore, in the aforementioned flashlight with active heat dissipation function, a switch receiving cavity is provided on the outer peripheral wall of the heat dissipation chamber 21 at a corresponding position on the circuit main board 24. A flashlight switch 28 electrically connected to the circuit main board 24 is installed in the switch receiving cavity. The flashlight switch 28 can control the light-emitting element 232 to turn on and off, and can also be configured to turn the cooling fan 25 on and off.

[0025] Furthermore, in the aforementioned flashlight with active heat dissipation function, a tail cap 12 is detachably connected to the end of the flashlight body 1 away from the flashlight head 2.

[0026] Furthermore, in the aforementioned flashlight with active heat dissipation function, the light source assembly 23 includes an aluminum lamp cup 231 installed in the heat dissipation chamber 21 near one end of the head cover 22 and a light-emitting element 232 installed in the aluminum lamp cup 231 and electrically connected to the circuit board 24.

[0027] Furthermore, in the aforementioned flashlight with active heat dissipation function, the light-emitting element 232 is an LED lamp bead, and the bottom of the light-emitting element 232 is connected to a copper substrate 29.

[0028] Specifically, in this embodiment, the flashlight with active heat dissipation function achieves a significant improvement in heat dissipation performance through its unique structural design. Specifically, a cooling fan 25 is installed inside the heat dissipation chamber 21 of the flashlight, located between the light source component 23 and the circuit board 24. When the flashlight is working, the light source component 23 (such as an LED bead) generates heat, which is conducted to the heat dissipation chamber 21 through the aluminum lamp holder 231 and the copper substrate 29. The cooling fan 25 operates actively under the control of the circuit board 24, expelling hot air from the heat dissipation chamber 21 through the air outlet 27 while simultaneously drawing in cool air from the air inlet 26, forming a convection circulation. This rapidly reduces the temperature inside the heat dissipation chamber 21. Furthermore, an air duct can be installed inside the heat dissipation chamber 21, designed with a bottom-in, top-out directional cone, allowing cool air to flow evenly across all heat-generating components along a preset path, ensuring that each area receives fresh cool air while hot air is expelled in an orderly manner. This active cooling method, compared to traditional passive cooling (such as heat sinks or ventilation holes), can dissipate heat more efficiently, preventing the light source component 23 and the circuit board 24 from experiencing performance degradation or shortened lifespan due to high temperatures. Furthermore, the rational layout of the air inlet 26 and outlet 27 on the heat dissipation chamber 21 further optimizes the airflow path and enhances heat dissipation efficiency. Therefore, this flashlight significantly improves heat dissipation performance through a combination of active cooling and structural optimization, ensuring the stability and reliability of the flashlight during high brightness or prolonged use. Moreover, this embodiment employs a high-speed fan, and the heat dissipation section is designed with aerodynamics for powerful cooling. The battery uses the latest 4695 large cylindrical cells of equal positive and negative polarity, resulting in lower resistance and higher efficiency. The new conductivity mode saves internal space and improves conversion efficiency. This embodiment of the flashlight with active cooling function features excellent heat dissipation performance, a compact structure, safety, reliability, and simple operation.

[0029] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0030] The embodiments described above are merely examples illustrating several implementations of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be understood that the application of this utility model is not limited to the examples described above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A flashlight with active heat dissipation function, characterized in that, Includes a flashlight body (1) and a flashlight head (2) detachably connected to the upper end of the flashlight body (1); The flashlight head (2) includes a heat dissipation chamber (21) and a head cover (22). The heat dissipation chamber (21) is a hollow structure with openings at both ends. One end of the heat dissipation chamber (21) is detachably connected to the upper end of the flashlight body (1). The head cover (22) is detachably connected to the end of the heat dissipation chamber (21) away from the flashlight body (1). A light source assembly (23) is provided at one end of the heat dissipation chamber (21) near the head cover (22). A circuit board (24) is provided at one end of the heat dissipation chamber (21) near the flashlight body (1). A cooling fan (25) is provided between the light source assembly (23) and the circuit board (24) in the heat dissipation chamber (21). The cooling fan (25) and the light source assembly (23) are electrically connected to the circuit board (24). Corresponding air inlets (26) and air outlets (27) are provided on the outer peripheral wall of the heat dissipation chamber (21) at the corresponding positions of the cooling fan (25).

2. The flashlight with active heat dissipation function according to claim 1, characterized in that, A battery (11) is installed inside the flashlight body (1), and the battery (11) is electrically connected to the circuit board (24).

3. The flashlight with active heat dissipation function according to claim 2, characterized in that, The battery (11) is a 4695 large cylindrical cell.

4. The flashlight with active heat dissipation function according to claim 1, characterized in that, A switch receiving cavity is provided on the outer peripheral wall of the heat dissipation chamber (21) at the corresponding position of the circuit main board (24), and a flashlight switch (28) electrically connected to the circuit main board (24) is installed in the switch receiving cavity.

5. The flashlight with active heat dissipation function according to claim 1, characterized in that, The end of the flashlight body (1) away from the flashlight head (2) is detachably connected to a tail cap (12).

6. The flashlight with active heat dissipation function according to any one of claims 1-5, characterized in that, The light source assembly (23) includes an aluminum lamp cup (231) installed in the heat dissipation chamber (21) near one end of the head cover (22) and a light-emitting element (232) installed in the aluminum lamp cup (231) and electrically connected to the circuit board (24).

7. The flashlight with active heat dissipation function according to claim 6, characterized in that, The light-emitting element (232) is an LED lamp bead, and a copper substrate (29) is connected to the bottom of the light-emitting element (232).

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