Portable lighting device with air-cooling heat dissipation function

Abstract

The utility model relates to the technical field of portable lighting, and discloses a portable lighting device with an air-cooling heat dissipation function, which comprises a shell, a lighting assembly, an air-cooling heat dissipation assembly, a control assembly and a power supply, the lighting assembly is used for emitting light to penetrate through the irradiation face of the top of the shell. The air cooling heat dissipation assembly is adjacent to the lighting assembly, and driving air is used for heat dissipation of the lighting assembly; the power source is electrically connected with the control assembly, the lighting assembly and the air cooling heat dissipation assembly. The control assembly is in control connection with the power source, the lighting assembly and the air cooling heat dissipation assembly. According to the scheme, the lighting assembly and the air cooling heat dissipation assembly are adjacently arranged, heat dissipation is directly conducted on the lighting assembly through the air cooling heat dissipation assembly, rapid and effective heat dissipation of the lighting assembly is achieved, the lighting assembly can keep high-power lighting for a long time, and then stable lighting brightness is kept.

Description

Technical Field

[0001] This utility model relates to the field of portable lighting technology, and in particular to a portable lighting device with air-cooling function. Background Technology

[0002] LED flashlights are a common type of flashlight, known for their stable illumination and long lifespan. With the continuous development of LEDs, the brightness and power of existing flashlights are increasing. However, high-power illumination generates a lot of heat. If heat cannot be dissipated in time, it will affect the LED's power and brightness, preventing stable brightness output and shortening its lifespan.

[0003] Chinese patent CN202110963694.9 discloses a flashlight with good heat dissipation performance. The invention includes a lamp head assembly, which comprises a lamp head shell and a light source, with the light source disposed inside the lamp head shell; and a body assembly, which includes a body shell, a heat dissipation sleeve, a heat dissipation pipe, and a cooling fan. The body shell is connected to the lamp head shell, and the heat dissipation sleeve is fitted inside the body shell with a heat dissipation gap between them. A battery compartment is formed inside the heat dissipation sleeve. The heat dissipation pipe is disposed in the heat dissipation gap and connected to the outer surface of the heat dissipation sleeve. A heat dissipation cavity is provided at the end of the body shell away from the lamp head assembly, and the heat dissipation pipe extends into the heat dissipation cavity. The cooling fan is disposed in the heat dissipation cavity and located between the tail end of the heat dissipation pipe and the battery compartment. The flashlight with good heat dissipation performance provided by this invention can solve the problem of poor heat dissipation performance during flashlight use. However, this solution needs further improvement.

[0004] This invention overcomes the shortcomings of the prior art and provides a portable lighting device with air-cooling function, which can achieve rapid heat dissipation of LED lights and maintain stable luminous power and brightness. Utility Model Content

[0005] The main purpose of this utility model is to provide a portable lighting device with air-cooling function, including a housing, a lighting component, an air-cooling component, a control component and a power supply;

[0006] The lighting component is located on the inner top of the housing, and the lighting component is used to emit light that passes through the illumination surface at the top of the housing;

[0007] The air-cooled heat dissipation component is located inside the housing and is arranged adjacent to the lighting component. The air-cooled heat dissipation component drives air to dissipate heat from the lighting component.

[0008] The power supply is located at the bottom inner side of the housing, and the power supply is electrically connected to the control component, the lighting component, and the air-cooled heat dissipation component respectively;

[0009] The control component is located in the housing between the power supply and the air-cooled heat dissipation component, and the control component is connected to the power supply, the lighting component, and the air-cooled heat dissipation component for control.

[0010] Optionally, the lighting assembly includes a first circuit board, a lamp holder, and multiple lamp beads. The first circuit board is connected to the lamp holder and is also connected to the control assembly. The lamp holder has multiple lamp tubes, and the lamp beads are disposed inside the lamp tubes and connected to the lamp holder. The lamp beads are arranged opposite to the illumination surface of the housing.

[0011] Optionally, the lamp barrel is an outwardly expanding gradually expanding cylinder, and the surface of the lamp barrel is provided with a reflective layer; the irradiation surface is provided with a light-transmitting plate, and the light-transmitting plate is fixedly connected to the housing.

[0012] Optionally, the number of LED beads is three, the number of lamp tubes is the same as the number of LED beads, and the three lamp tubes are arranged in an equilateral triangle.

[0013] Optionally, the air-cooled heat dissipation component includes a fan and a heat sink. The heat sink is disposed opposite to the first circuit board in the lighting component. The fan is controlled and connected to the control component and electrically connected to the power supply. The fan is located on the front side of the heat sink and has ventilation holes on the surface of the housing to communicate with the outside.

[0014] Optionally, the upper side of the heat sink is disposed opposite to the first circuit board, the lower side of the heat sink is provided with multiple fins, the fin channels between the fins connect the front and rear sides of the heat sink, and the rear side of the heat sink is provided with ventilation holes corresponding to the surface of the housing.

[0015] Optionally, multiple layers of heat dissipation grilles extend outward from the corresponding left and right sides of the housing surface of the heat sink.

[0016] Optionally, the control component includes a switch, a second circuit board, and a third circuit board, with the second and third circuit boards arranged in parallel; the second circuit board is electrically connected to the third circuit board, the second circuit board is electrically connected to the lighting component and the air-cooled heat dissipation component respectively, and the third circuit board is electrically connected to the power supply; the switch is embedded in the surface of the housing and is connected to the second circuit board.

[0017] Optionally, the second circuit board is connected to a data interface, which is embedded in the surface of the housing and is covered by an interface cover.

[0018] Optionally, the power source includes a rechargeable battery, which is connected to the third circuit board via a spring battery holder.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The portable lighting device provided by this utility model arranges the lighting component and the air-cooling heat dissipation component adjacent to each other. The air-cooling heat dissipation component directly dissipates heat from the lighting component, achieving rapid and effective heat dissipation and enabling the lighting component to maintain high-power illumination for extended periods, thereby maintaining stable lighting brightness. A control component is used to control the operation of the lighting component and the air-cooling heat dissipation component. A power supply provides electrical energy, and the control component is located between the power supply and the air-cooling heat dissipation component. The air-cooling heat dissipation component also helps to cool the control component. Attached Figure Description

[0021] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0022] Figure 1 This is a schematic diagram of an embodiment of the portable lighting device with air-cooling function of this utility model;

[0023] Figure 2 This is a side view of a schematic diagram of an embodiment of the portable lighting device with air-cooling function of this utility model;

[0024] Figure 3 This is a first-direction sectional view of an embodiment of a portable lighting device with air-cooling function according to a utility model;

[0025] Figure 4 This is a second-direction sectional view of an embodiment of a portable lighting device with air-cooling function according to a utility model;

[0026] Figure 5 Exploded view of an embodiment of a portable lighting device with air-cooling function according to a utility model. Figure 1 ;

[0027] Figure 6 Exploded view of an embodiment of a portable lighting device with air-cooling function according to a utility model. Figure 2 .

[0028] Figure label:

[0029] 1-Housing; 11-Light-transmitting plate; 12-Ventilation hole; 13-Heat dissipation grille; 2-Lighting assembly; 21-First circuit board; 22-Lamp holder; 221-Lamp tube; 23-LED bead; 3-Air-cooled heat dissipation assembly; 31-Fan; 32-Heat dissipation base; 321-Fin; 4-Control assembly; 41-Switch; 42-Second circuit board; 43-Third circuit board; 44-Data interface; 5-Power supply; 51-Spring battery holder. Detailed Implementation

[0030] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only. In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of indicated technical features. Thus, unless otherwise stated, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. The term "comprising" and any variations thereof mean non-exclusive inclusion, where one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.

[0031] Furthermore, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; as a direct connection or an indirect connection through an intermediate medium, or as a connection within two components. 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. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0032] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0033] like Figure 1-6 The diagram shown is a schematic representation of an embodiment of the portable lighting device with air-cooling function provided by this utility model.

[0034] Please refer to Figure 1-6This example is for lighting, specifically a flashlight structure. The embodiment includes a housing 1, a lighting component 2, a cooling assembly 3, a control assembly 4, and a power supply 5. The housing 1 has a cylindrical structure. The lighting component 2 is located on the inner top of the housing 1, emitting light that passes through the top surface of the housing 1. The cooling assembly 3 is located inside the housing 1, adjacent to the lighting component 2, and uses air to dissipate heat from the lighting component 2. By placing the lighting component 2 and the cooling assembly 3 adjacent to each other, the cooling assembly 3 directly dissipates heat from the lighting component 2, achieving rapid and effective heat dissipation and allowing the lighting component 2 to maintain high-power illumination for extended periods, thus maintaining stable brightness.

[0035] The power supply 5 is located at the bottom inner side of the housing 1. The power supply 5 is electrically connected to the control component 4, the lighting component 2, and the air-cooling component 3, respectively, to power each component. The battery 5 can be a rechargeable lithium battery or other dry cell batteries. The air-cooling component 3 can also be used for heat dissipation of the battery 5 and the control component 4. The control component 4 is located in the housing 1 between the power supply 5 and the air-cooling component 3. The control component 4 is connected to the power supply 5, the lighting component 2, and the air-cooling component 3 for control. The control component 4 is used to control each component and can be composed of switches and circuit boards, etc.

[0036] In one embodiment, the lighting assembly 2 includes a first circuit board 21, a lamp holder 22, and a plurality of lamp beads 23. The first circuit board 21 is connected to the lamp holder 22 and is also connected to the control assembly 4. The lamp holder 22 is provided with a plurality of lamp tubes 221, and the lamp beads 23 are disposed inside the lamp tubes 221 and connected to the lamp holder 22. The lamp beads 23 are arranged opposite to the illumination surface of the housing 1. The lamp holder 22 is used for mounting and fixing the lamp beads 23, and the lamp tubes 221 are used for focusing the light from the lamp beads 23.

[0037] Specifically, the lamp tube 221 is an outwardly expanding gradually expanding tube (expanding towards the irradiation surface), and the surface of the lamp tube 221 is provided with a reflective layer to better concentrate and reflect light. The irradiation surface is provided with a light-transmitting plate 11, which is fixedly connected to the housing 1. The light-transmitting plate 11 is specifically made of a colorless and transparent material.

[0038] Furthermore, there are three LED beads 23, and the number of lamp tubes 221 is the same as the number of LED beads 23. The three lamp tubes 221 are arranged in an equilateral triangle to expand the illumination range and make the illumination range more uniform. The LED beads 23 are high-power LED beads with high luminous intensity and high brightness. The combination of three LED beads 23 can achieve greater brightness illumination.

[0039] In one embodiment, the air-cooled heat dissipation component 3 includes a fan 31 and a heat sink 32. The fan 31 in the illustration is a simplified diagram; its specific structure is a conventional fan structure and will not be described in detail. The heat sink 32 is positioned opposite to the first circuit board 21 in the lighting component 2. The fan 31 is controlled and connected to the control component 4, and electrically connected to the power supply 5. The fan 31 is located on the front side of the heat sink 32, and ventilation holes 12 are provided on the surface of the housing 1 corresponding to the fan 31 to connect to the outside. The heat generated by the lamp beads 23 and the first circuit board 21 in the lighting component 2 is transferred to the heat sink 32, which then transfers the heat to the air. The fan 31 drives the air inside the housing 1 to exchange with the outside air, achieving heat exchange and thus heat dissipation.

[0040] Specifically, the upper side of the heat sink 32 is positioned opposite to the first circuit board 21, and the lower side of the heat sink 32 is provided with multiple fins 321. The fin channels between the fins 321 connect the front and rear sides of the heat sink 32, and the rear side of the heat sink 32 is provided with ventilation holes 12 corresponding to the surface of the housing 1. The fins 321 increase the contact area between the heat sink 32 and the air, thereby enhancing the heat dissipation effect. The fin channels between the fins 321 are parallel to the line connecting the ventilation holes 12 on both sides of the housing 1, reducing the obstruction of gas flow between the ventilation holes 12 on both sides.

[0041] Furthermore, multiple layers of heat dissipation grilles 13 extend outward from the corresponding surfaces of the housing 1 on the left and right sides of the heat sink 32. The heat dissipation grilles 13 increase the contact area between the housing 1 and the air, thereby enhancing the heat dissipation effect.

[0042] In one embodiment, the control component 4 includes a switch 41, a second circuit board 42, and a third circuit board 43. The second circuit board 42 and the third circuit board 43 are arranged in parallel and are electrically connected. The second circuit board 42 is electrically connected to the lighting component 2 and the air-cooled heat dissipation component 3, respectively, and the third circuit board 43 is electrically connected to the power supply 5. The switch 41 is embedded in the surface of the housing 1 and is connected to the second circuit board 42. The switch 41 is used to start and stop the lighting component 2 and the air-cooled heat dissipation component 3. The second circuit board 42 and the third circuit board 43 are specifically PCB circuit boards.

[0043] Furthermore, the second circuit board 42 is connected to the data interface 44, which is embedded in the surface of the housing 1 and is covered by an interface cover. Specifically, the data interface 44 may be a USB interface, used for charging the power supply 5, or for data transmission between the second circuit board 42 and the third circuit board 43 of the control component 4, and for writing control software.

[0044] In one embodiment, the power source 5 includes a rechargeable battery connected to a third circuit board 43 via a spring battery holder 51.

[0045] In summary, the embodiments provided by this utility model arrange the lighting component and the air-cooling heat dissipation component adjacent to each other. The air-cooling heat dissipation component directly dissipates heat from the lighting component, achieving rapid and effective heat dissipation and enabling the lighting component to maintain high-power illumination for extended periods, thereby maintaining stable lighting brightness. The control component is used to control the operation of the lighting component and the air-cooling heat dissipation component. The power supply provides electrical energy, and the control component is located between the power supply and the air-cooling heat dissipation component. The air-cooling heat dissipation component also serves to dissipate heat from the control component.

[0046] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Under the concept of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this utility model as described above. For the sake of brevity, they are not provided in detail. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A portable lighting device with air-cooled heat dissipation function, characterized in that, Includes housing, lighting components, air-cooled heat dissipation components, control components, and power supply; The lighting component is located on the inner top of the housing, and the lighting component is used to emit light that passes through the illumination surface at the top of the housing; The air-cooled heat dissipation component is located inside the housing and is arranged adjacent to the lighting component. The air-cooled heat dissipation component drives air to dissipate heat from the lighting component. The power supply is located at the bottom inner side of the housing, and the power supply is electrically connected to the control component, the lighting component, and the air-cooled heat dissipation component respectively; The control component is located in the housing between the power supply and the air-cooled heat dissipation component, and the control component is connected to the power supply, the lighting component, and the air-cooled heat dissipation component for control.

2. The portable lighting device with air-cooled heat dissipation function according to claim 1, characterized in that, The lighting assembly includes a first circuit board, a lamp holder, and multiple lamp beads. The first circuit board is connected to the lamp holder and is also connected to the control assembly. The lamp holder has multiple lamp tubes, and the lamp beads are disposed inside the lamp tubes and connected to the lamp holder. The lamp beads are arranged opposite to the illumination surface of the housing.

3. The portable lighting device with air-cooled heat dissipation function according to claim 2, characterized in that, The lamp tube is an outwardly expanding gradually expanding cylinder, and the surface of the lamp tube is provided with a reflective layer; the irradiation surface is provided with a light-transmitting plate, and the light-transmitting plate is fixedly connected to the housing.

4. The portable lighting device with air-cooled heat dissipation function according to claim 2, characterized in that, The number of LED beads is three, and the number of lamp tubes is the same as the number of LED beads. The three lamp tubes are arranged in an equilateral triangle.

5. The portable lighting device with air-cooled heat dissipation function according to claim 1, characterized in that, The air-cooled heat dissipation component includes a fan and a heat sink. The heat sink is disposed opposite to the first circuit board in the lighting component. The fan is controlled and connected to the control component and electrically connected to the power supply. The fan is located on the front side of the heat sink and has ventilation holes on the surface of the housing to connect to the outside.

6. The portable lighting device with air-cooled heat dissipation function according to claim 5, characterized in that, The upper side of the heat sink is disposed opposite to the first circuit board, and the lower side of the heat sink is provided with multiple fins. The fin channels between the fins connect the front and rear sides of the heat sink, and the rear side of the heat sink is provided with ventilation holes corresponding to the surface of the housing.

7. The portable lighting device with air-cooled heat dissipation function according to claim 6, characterized in that, Multiple layers of heat dissipation grilles extend outward from the corresponding shell surfaces on the left and right sides of the heat sink.

8. The portable lighting device with air-cooled heat dissipation function according to claim 1, characterized in that, The control component includes a switch, a second circuit board, and a third circuit board, with the second and third circuit boards arranged in parallel. The second circuit board is electrically connected to the third circuit board, and the second circuit board is electrically connected to the lighting component and the air-cooled heat dissipation component, respectively. The third circuit board is electrically connected to the power supply. The switch is embedded in the surface of the housing and is connected to the second circuit board.

9. The portable lighting device with air-cooled heat dissipation function according to claim 8, characterized in that, The second circuit board is connected to a data interface, which is embedded in the surface of the housing and is covered by an interface cover.

10. The portable lighting device with air-cooled heat dissipation function according to claim 8, characterized in that, The power source includes a rechargeable battery, which is connected to the third circuit board via a spring battery holder.

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