Inner cavity heat dissipation structure of external spotlight

Abstract

The inner cavity heat dissipation structure of the external spotlight comprises a shell, a heat dissipation cavity is formed in the shell, and the heat dissipation cavity penetrates through the front end and the rear end of the shell; the front end of the shell is fixedly connected with a front cover through screws, and air inlets are formed in the front end face of the front cover and correspond to the heat dissipation cavities one to one. The rear end of the shell is fixedly connected with a rear cover through screws, and air outlets are formed in the rear end face of the rear cover and correspond to the heat dissipation cavities one to one. A lens is installed between the front cover and the shell, an LED bulb and a circuit board are fixedly connected to the interior of the shell, and LED lamp beads are fixedly connected to the front end of the circuit board. By arranging the air inlet, the heat dissipation cavity and the air outlet, when a vehicle runs, air enters the heat dissipation cavity from the air inlet, then takes away heat in the heat dissipation cavity, and finally is exhausted outwards from the air outlet, so that the purpose of cooling is achieved, meanwhile, the cooling effect can be improved under the cooperation of the cooling fins, and the service life of the vehicle is prolonged. And the service life of the external spotlight can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of spotlight heat dissipation, in particular to an inner cavity heat dissipation structure of an external spotlight. Background Art

[0002] LED is the abbreviation of light-emitting diode, which is a solid-state luminous material that can convert electrical energy into light energy. Due to its advantages of energy saving and environmental protection, it is gradually replacing traditional light sources. LED spotlights are highly concentrated lamps, and their light can be directed to specific targets, mainly used for special lighting. With the rapid development of the automobile industry, the demand for external spotlights for automobiles is also increasing.

[0003] When the external spotlight is currently in use, it is cooled only by an external heat sink. Although this achieves a cooling effect, the cooling effect is not obvious, which affects the service life of the external spotlight. Therefore, it is necessary to design an internal cavity heat dissipation structure for the external spotlight. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an inner cavity heat dissipation structure of an external spotlight.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: the internal cavity heat dissipation structure of the external spotlight includes a shell, a heat dissipation cavity is arranged inside the shell, the heat dissipation cavity runs through the front and rear ends of the shell, and there are four heat dissipation cavities; the front end of the shell is fixedly connected to a front cover by screws, the front end surface of the front cover is provided with an air inlet, and the air inlet corresponds to the heat dissipation cavity one by one; the rear end of the shell is fixedly connected to a rear cover by screws, the rear end surface of the rear cover is provided with an air outlet, and the air outlet corresponds to the heat dissipation cavity one by one; a lens is installed between the front cover and the shell, an LED bulb and a circuit board are fixedly connected to the inside of the shell, and an LED lamp bead is fixedly connected to the front end of the circuit board.

[0006] As a further description of the above technical solution:

[0007] The circumferential surface of the shell is provided with a mounting groove, and a plurality of the mounting grooves are provided, and the front and rear mounting grooves form a group.

[0008] As a further description of the above technical solution:

[0009] The circumferential surface of the shell is fixedly connected with heat dissipation fins, and a plurality of heat dissipation fins are provided and distributed in a circumferential array.

[0010] As a further description of the above technical solution:

[0011] A plug-in slot is provided inside the shell, a reflector is plugged into the plug-in slot, and the reflector corresponds to the LED lamp bead.

[0012] As a further description of the above technical solution:

[0013] A first positioning groove is formed on the front end surface of the housing, a first positioning column is slidably connected inside the first positioning groove, a first sealing gasket is fixedly connected to the front end of the first positioning column, and the first sealing gasket is located between the lens and the housing.

[0014] As a further description of the above technical solution:

[0015] A second positioning groove is formed on the rear end surface of the shell, a second positioning column is slidably connected inside the second positioning groove, a second sealing gasket is fixedly connected to the rear end of the second positioning column, and the second sealing gasket is located between the rear cover and the shell.

[0016] As a further description of the above technical solution:

[0017] A threading hole is provided on the rear end surface of the rear cover.

[0018] The utility model has the following beneficial effects:

[0019] Compared with the prior art, the internal cavity heat dissipation structure of the external spotlight is provided with an air inlet, a heat dissipation cavity and an air outlet. When the vehicle is driving, wind enters the heat dissipation cavity from the air inlet, then takes away the heat inside the heat dissipation cavity, and is finally discharged to the outside from the air outlet, thus achieving the purpose of cooling. At the same time, with the cooperation of the heat dissipation fins, the cooling effect can be improved, which is beneficial to prolonging the service life of the external spotlight. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the inner cavity heat dissipation structure of the external spotlight proposed by the utility model;

[0021] Figure 2 This is a structural schematic diagram of the disassembled inner cavity heat dissipation structure of the external spotlight proposed by the utility model from a first-view perspective;

[0022] Figure 3 The inner cavity heat dissipation structure of the external spotlight proposed by the utility model Figure 2 Enlarged view of part A;

[0023] Figure 4 The inner cavity heat dissipation structure of the external spotlight proposed by the utility model Figure 2 Enlarged view of part B;

[0024] Figure 5This is a structural schematic diagram of the internal cavity heat dissipation structure of the external spotlight proposed by the utility model after being disassembled from a second viewing angle;

[0025] Figure 6 The inner cavity heat dissipation structure of the external spotlight proposed by the utility model Figure 5 Enlarged view of part C.

[0026] Legend:

[0027] 1. Shell; 101. Heat dissipation cavity; 2. Front cover; 201. Air inlet; 3. Back cover; 301. Air outlet; 4. Mounting slot; 5. Heat dissipation fins; 6. Lens; 7. First sealing gasket; 8. Second sealing gasket; 9. LED bulb; 10. Plug-in slot; 11. First positioning slot; 12. Reflector; 13. Circuit board; 14. LED lamp bead; 15. First positioning column; 16. Second positioning column; 17. Second positioning slot; 18. Threading hole. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Reference Figure 1-6 The internal cavity heat dissipation structure of the external spotlight provided by the utility model includes a shell 1, a heat dissipation cavity 101 is arranged inside the shell 1, the heat dissipation cavity 101 runs through the front and rear ends of the shell 1, and four heat dissipation cavities 101 are arranged; the front end of the shell 1 is fixedly connected to a front cover 2 by screws, and an air inlet 201 is opened on the front end surface of the front cover 2, and the air inlet 201 corresponds to the heat dissipation cavity 101 one by one; the rear end of the shell 1 is fixedly connected to a rear cover 3 by screws, and an air outlet 301 is opened on the rear end surface of the rear cover 3, and the air outlet 301 corresponds to the heat dissipation cavity 101 one by one; a lens 6 is installed between the front cover 2 and the shell 1, an LED bulb 9 and a circuit board 13 are fixedly connected inside the shell 1, and an LED lamp bead 14 is fixedly connected to the front end of the circuit board 13.

[0030] Specifically, when in use, the light emitted by the LED bulb 9 and the LED lamp bead 14 is emitted outward through the lens 6, thereby achieving the purpose of lighting. When the LED bulb 9 and the LED lamp bead 14 are working, a large amount of heat is generated at this time, and the heat is transferred to the inside of the heat dissipation cavity 101 through the shell 1. When the vehicle is driving, the wind enters the heat dissipation cavity 101 from the air inlet 201, and then takes away the heat inside the heat dissipation cavity 101, and finally is discharged outward from the air outlet 301, thereby achieving the purpose of cooling.

[0031] The circumferential surface of the housing 1 is provided with a mounting groove 4, and a plurality of mounting grooves 4 are provided, and the front and rear mounting grooves 4 form a group. When working, the mounting grooves 4 are provided, and the spotlight can be conveniently fixed at a desired place under the action of the mounting grooves 4.

[0032] The circumferential surface of the shell 1 is fixedly connected with heat dissipation fins 5, and a plurality of heat dissipation fins 5 are arranged and distributed in a circular array. When working, by arranging the heat dissipation fins 5, the purpose of cooling can be further achieved under the action of the heat dissipation fins 5, thereby improving the cooling effect and helping to extend the service life of the external spotlight.

[0033] A plug-in slot 10 is provided inside the shell 1, and a reflector 12 is plugged into the plug-in slot 10. The reflector 12 corresponds to the LED lamp bead 14. When working, by setting the plug-in slot 10, under the action of the plug-in slot 10, it is convenient to install the reflector 12 into the shell 1, and then under the action of the reflector 12, the light scattered by the LED lamp bead 14 can be collected and reflected.

[0034] A first positioning groove 11 is provided on the front end surface of the shell 1, and a first positioning column 15 is slidably connected inside the first positioning groove 11. A first sealing gasket 7 is fixedly connected to the front end of the first positioning column 15. The first sealing gasket 7 is located between the lens 6 and the shell 1. During operation, the first positioning groove 11 and the first positioning column 15 can be set to install the first sealing gasket 7 on the front end of the shell 1, so that the sealing between the shell 1 and the lens 6 can be improved under the action of the first sealing gasket 7.

[0035] A second positioning groove 17 is provided on the rear end surface of the shell 1, and a second positioning column 16 is slidably connected inside the second positioning groove 17. A second sealing gasket 8 is fixedly connected to the rear end of the second positioning column 16. The second sealing gasket 8 is located between the back cover 3 and the shell 1. During operation, the second positioning groove 17 and the second positioning column 16 can be provided to install the second sealing gasket 8 on the front end of the shell 1, so that the sealing between the shell 1 and the back cover 3 can be improved under the action of the second sealing gasket 8.

[0036] A threading hole 18 is provided on the rear end surface of the rear cover 3 . During operation, the threading hole 18 is provided to facilitate passing the wires out of the rear cover 3 .

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An internal heat dissipation structure of an external spotlight, comprising a housing (1), characterized in that: A heat dissipation cavity (101) is arranged inside the shell (1), and the heat dissipation cavity (101) runs through the front and rear ends of the shell (1), and four heat dissipation cavities (101) are arranged; the front end of the shell (1) is fixedly connected to a front cover (2) by screws, and the front end surface of the front cover (2) is provided with an air inlet (201), and the air inlet (201) corresponds to the heat dissipation cavity (101) one by one; the rear end of the shell (1) is fixedly connected to a rear cover (3) by screws, and the rear end surface of the rear cover (3) is provided with an air outlet (301), and the air outlet (301) corresponds to the heat dissipation cavity (101) one by one; a lens (6) is installed between the front cover (2) and the shell (1), and an LED bulb (9) and a circuit board (13) are fixedly connected inside the shell (1), and an LED lamp bead (14) is fixedly connected to the front end of the circuit board (13).

2. The inner cavity heat dissipation structure of the external spotlight according to claim 1, characterized in that: The circumferential surface of the shell (1) is provided with a mounting groove (4), a plurality of the mounting grooves (4) are provided, and the front and rear mounting grooves (4) form a group.

3. The inner cavity heat dissipation structure of the external spotlight according to claim 1, characterized in that: The circumferential surface of the shell (1) is fixedly connected with heat dissipation fins (5), and a plurality of the heat dissipation fins (5) are provided and distributed in a circumferential array.

4. The inner cavity heat dissipation structure of the external spotlight according to claim 1, characterized in that: The housing (1) is provided with a plug-in slot (10) inside which a reflector (12) is plugged, and the reflector (12) corresponds to an LED lamp bead (14).

5. The inner cavity heat dissipation structure of the external spotlight according to claim 1, characterized in that: The front end surface of the housing (1) is provided with a first positioning groove (11), a first positioning column (15) is slidably connected inside the first positioning groove (11), a first sealing gasket (7) is fixedly connected to the front end of the first positioning column (15), and the first sealing gasket (7) is located between the lens (6) and the housing (1).

6. The inner cavity heat dissipation structure of the external spotlight according to claim 1, characterized in that: A second positioning groove (17) is provided on the rear end surface of the shell (1), a second positioning column (16) is slidably connected inside the second positioning groove (17), a second sealing gasket (8) is fixedly connected to the rear end of the second positioning column (16), and the second sealing gasket (8) is located between the rear cover (3) and the shell (1).

7. The inner cavity heat dissipation structure of the external spotlight according to claim 1, characterized in that: A threading hole (18) is provided on the rear end surface of the rear cover (3).

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