CA3131212A1

CA3131212A1 - Inner circulation heat-dissipating led lamp cap

Info

Publication number: CA3131212A1
Application number: CA3131212A
Authority: CA
Inventors: James Cheng
Original assignee: Car Decor Inc
Current assignee: Car Decor Inc
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2023-03-17
Anticipated expiration: 2041-09-17
Also published as: CA3131212C

Abstract

The invention discloses an inner circulation heat-dissipating LED lamp cap, comprising a shell, a control circuit, and a power supply circuit, wherein one side of the shell is connected with a light-emitting component; the outside of the shell is installed with a metal holder; the inside of the shell is provided with a heat-dissipating component; the output end of the heat-dissipating component directly faces the light-emitting component; the high pressure airflow generated by the heat-dissipating component is blown to the light-emitting component to take away the heat, and then an inner circulation warming airflow is formed inside. The spiral jet fan forms a high- pressure airflow in the lamp body, which quickly blows away the surface and internal temperature of the lamp bead, with better heat conduction performance and more stable use of the whole machine.

Description

INNER CIRCULATION HEAT-DISSIPATING LED LAMP CAP
FIELD OF THE INVENTION
[0001] The invention relates to the field of automobile headlights, in particular to an inner circulation heat-dissipating LED lamp cap.
BACKGROUND OF THE RELATED ART

[0002] With its energy-saving and luminous characteristics, LED lamps gradually began to replace many light source structures in the past. As automobile lights, LED
lights are gradually replacing incandescent lights and other light sources. The heat dissipation of LED lights for automobile lights is a big problem. Many LED automobile lights have poor heat dissipation effects, resulting in an increase in temperature that affects the stability and service life of the entire structure. At the same time, because most of the LED automobile lights on the market use ordinary convection fans (the working principle is: the lamp bead generates heat when it is working, and it is conducted to the aluminum radiator at the bottom by copper or aluminum parts, and then blows air against the radiator through a fan to achieve the purpose of heat dissipation), ordinary convection cooling fans are susceptible to working environment and time, which will produce dust and dirt, thereby reducing the working life of the cooling fan and the service life of the entire lamp.
SUMMARY OF THE INVENTION

[0003] The technical problem to be solved by the invention is to provide an inner circulation heat-dissipating LED lamp cap. The invention uses an inner circulation heat-dissipating method in a sealed automobile lamp component, and uses the internal air in the automobile lamp component to circulate heat, which can not only prevent the life of the cooling fan from being affected by the external environment during work, but also achieve the snow melting function when used in cold areas in winter, thereby improving driving safety in rain and snow.

[0004] The invention is realized by the following technical solutions: an inner circulation heat-dissipating LED lamp cap, comprising a shell, a control circuit, and a power supply circuit, wherein one side of the shell is connected with a light-emitting component;
the outside of the Date Recue/Date Received 2021-09-17 shell is installed with a metal holder; the inside of the shell is provided with a heat-dissipating component; the output end of the heat-dissipating component directly faces the light-emitting component; the high-pressure airflow generated by the heat-dissipating component is blown to the light-emitting component to take away the heat, and then an inner circulation warming airflow is formed inside.

[0005] Preferably, the light-emitting component comprises a red copper lamp post; a flat mounting surface is respectively formed on the upper and lower surfaces of the red copper lamp post; a hollow cavity is formed inside the red copper lamp post; a copper substrate is respectively installed on the upper and lower surfaces of the red copper lamp post; one end of the copper substrates respectively extends into the hollow cavity of the red copper lamp post;
the copper substrate is installed with LED chips.

[0006] Preferably, a thermal conductive sheet is provided between the bottom of the copper substrate and the red copper lamp post; the heat on the LED chip is transferred to the red copper lamp post through the thermal conductive sheet.

[0007] Preferably, after the copper substrate is fixedly installed on the red copper lamp post, the high-pressure airflow generated by the heat-dissipating component enters from the air inlet at one end of the red copper lamp post, and passes through the diversion channel at the upper end of the copper substrate to take away the heat on the LED chip.

[0008] Preferably, the thermal conductive sheet adopts a preformed tin sheet.

[0009] Preferably, the heat-dissipating component adopts a spiral jet fan; the spiral jet fan and the light-emitting component are connected to the control circuit and the power supply circuit.

[0010] Preferably, the inside of the shell is further provided with an FPC
connecting plate; one end of the shell is riveted with a butt joint; the red copper lamp post in the light-emitting component is sleeved on the butt joint, at this time the FPC connecting plate is connected to the copper substrate; the other end of the FPC connecting plate is connected to the control circuit and the power supply circuit.

[0011] Preferably, the spiral jet fan is provided with a fixing plate; one side of the spiral jet fan is sleeved with a shock-absorbing silicone piece, and the other side thereof is sleeved with a shock-absorbing fixing silicone piece.

[0012] Preferably, the shell is an aluminum shell; the end of the aluminum shell is fixed with Date Recue/Date Received 2021-09-17 an aluminum rear cover; the aluminum rear cover is provided with a wire fixing sleeve; a power control cable penetrates the aluminum rear cover and the wire fixing sleeve and is connected to the light-emitting component and the heat-dissipating component.

[0013] Preferably, the control circuit and the power supply circuit comprise a drive, a plug and a power control cable; the assembling surface of the metal holder and the aluminum shell is provided with more than one silicone sealing ring.

[0014] The advantageous effects of the invention are: the invention uses an inner circulation heat-dissipating method in a sealed automobile lamp component, and uses the internal air in the automobile lamp component to circulate heat, which can not only prevent the life of the cooling fan from being affected by the external environment during work, but also achieve the snow melting function when used in cold areas in winter, thereby improving driving safety in rain and snow.
BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to explain the embodiments of the invention or the technical solutions in the prior art more clearly, the drawings that need to be used in the description of the embodiments or the prior art will be briefly introduced hereinafter. Obviously, the drawings in the following description are only some embodiments of the invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] FIG. 1 is an exploded view of the overall structure of the invention;

[0017] FIG. 2 is a schematic diagram of the overall structure of the invention;

[0018] FIG. 3 is a schematic diagram of the structure of the red copper lamp post of the invention;

[0019] FIG. 4 is a schematic diagram of the structure of the shell of the invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] All the features disclosed in the specification, or all disclosed methods or steps in the process, except for mutually exclusive features and/or steps, can be combined in any manner.

[0021] Any feature disclosed in the specification (including any appended claims, abstract and drawings), unless specifically stated, can be replaced by other equivalent or equivalent alternative features. That is, unless otherwise stated, each feature is just one example of a series Date Recue/Date Received 2021-09-17 of equivalent or similar features.

[0022] In the description of the invention, it needs to be understood that the orientation or positional relationship indicated by the terms "one end", "the other end", "outer", "upper", "inner", "horizontal", "coaxial", "center", "end", "length", "outer end", etc.
are based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the invention.

[0023] In addition, in the description of the invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0024] The terms such as "upper", "above", "lower", "below" and the like used in the invention to indicate a relative position in space are used to describe the relationship of one unit or feature relative to another unit or feature as shown in the drawings for the purpose of facilitating explanation. The term of the relative position in space may be intended to include different orientations of the device in use or operation other than those shown in the figures. For example, if the device in the figure is turned over, the unit described as being "lower" or "below" other units or features will be "above" the other units or features. Therefore, the exemplary term "below" can encompass both above and below orientations. A device can be oriented in other ways (rotated by 90 degrees or other orientations), and the space-related descriptors used in this article are explained accordingly.

[0025] In the invention, unless otherwise clearly defined and limited, the terms "provided", "sleeved", "connected", "through", "plug" and other terms should be interpreted broadly; for example, it can be a fixed connection, it can be a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirectly connection through an intermediate medium, and it can be an internal communication between two elements or the interaction relationship between two elements, unless specifically defined otherwise. For those of ordinary skill in the art, the specific meaning of the above terms in the invention can be understood according to specific circumstances.

[0026] As shown in FIG. 1 and FIG. 2, an inner circulation heat-dissipating LED lamp cap of the invention, comprising a shell 1, a control circuit, and a power supply circuit, wherein one side of the shell 1 is connected with a light-emitting component; the outside of the shell 1 is installed with a metal holder 5; the inside of the shell 1 is provided with a heat-dissipating Date Recue/Date Received 2021-09-17 component; the output end of the heat-dissipating component directly faces the light-emitting component; the high-pressure airflow generated by the heat-dissipating component is blown to the light-emitting component to take away the heat, and then an inner circulation warming airflow is formed inside.

[0027] As shown in FIG. 3, the light-emitting component comprises a red copper lamp post 4;
a flat mounting surface 42 is respectively formed on the upper and lower surfaces of the red copper lamp post 4; a hollow cavity 41 is formed inside the red copper lamp post 4; a copper substrate 2 is respectively installed on the upper and lower surfaces of the red copper lamp post 4; one end of the copper substrates 2 respectively extends into the hollow cavity 41 of the red copper lamp post 4; the copper substrate 2 is installed with LED chips 16.

[0028] A thermal conductive sheet 3 is provided between the bottom of the copper substrate 2 and the red copper lamp post 4; the heat on the LED chip 16 is transferred to the red copper lamp post 4 through the thermal conductive sheet 3; the thermal conductive sheet (3) adopts a preformed tin sheet. In the embodiment, the preformed tin sheet is used as the thermal conductive piece, which will greatly improve the heat-conducting ability of the traditional heat-conducting glue, so that the heat on the LED chip can be quickly exchanged with the red copper lamp post to achieve better heat dissipation.

[0029] After the copper substrate 2 is fixedly installed on the red copper lamp post 4, the high-pressure airflow generated by the heat-dissipating component enters from the air inlet at one end of the red copper lamp post 4, and passes through the diversion channel at the upper end of the copper substrate 2 to take away the heat on the LED chip 16. In this way of convective blowing, the temperature will be greatly reduced after the airflow passes through the diversion channel with a smaller aperture; at this time, the heat can be quickly taken away after being concentrated in contact with the LED chips. This method has better heat dissipation and rational use of the structure of the red copper lamp post.

[0030] In the embodiment, the heat-dissipating component adopts a spiral jet fan 14; the spiral jet fan 14 and the light-emitting component are connected to the control circuit and the power supply circuit. The spiral jet fan forms a high-pressure airflow in the lamp body, which quickly blows away the surface and internal temperature of the lamp bead, with better heat conduction performance and more stable use of the whole machine.
Date Recue/Date Received 2021-09-17

[0031] The inside of the shell 1 is further provided with an FPC connecting plate 15; one end of the shell 1 is riveted with a butt joint 8; the red copper lamp post 4 in the light-emitting component is sleeved on the butt joint 8, at this time the FPC connecting plate 15 is connected to the copper substrate 2; the other end of the FPC connecting plate 15 is connected to the control circuit and the power supply circuit.

[0032] In the embodiment, the spiral jet fan 14 is provided with a fixing plate 13; one side of the spiral jet fan 14 is sleeved with a shock-absorbing silicone piece 6, and the other side thereof is sleeved with a shock-absorbing fixing silicone piece 7. By arranging a shock-absorbing silicone piece on both sides of the spiral jet fan 14, the vibration generated by the spiral jet fan 14 during operation is smaller, the whole headlights work more quietly, and the use performance of the spiral jet fan 14 can be more stable.

[0033] The shell 1 is an aluminum shell; the end of the aluminum shell is fixed with an aluminum rear cover 9; the aluminum rear cover 9 is provided with a wire fixing sleeve 17; a power control cable 10 penetrates the aluminum rear cover 9 and the wire fixing sleeve 17 and is connected to the light-emitting component and the heat-dissipating component.

[0034] The control circuit and the power supply circuit comprise a drive 11, a plug 12 and a power control cable 10; the assembling surface of the metal holder 5 and the aluminum shell is provided with more than one silicone sealing ring. As shown in FIG. 4, more than one annular groove is provided on the aluminum shell for installing the silicone sealing ring to increase the sealing performance of the assembly.

[0035] The invention uses an inner circulation heat-dissipating method in a sealed automobile lamp component, and uses the internal air in the automobile lamp component to circulate heat, which can not only prevent the life of the cooling fan from being affected by the external environment during work, but also achieve the snow melting function when used in cold areas in winter, thereby improving driving safety in rain and snow.

[0036] The invention uses high-quality LED lamp beads with a single lumen of 540 lumens, which is small in size, safe and stable, low in power consumption, high in efficiency, energy-saving and environmentally friendly, and is more than ten times that of ordinary lamps and HIDs.

[0037] The invention adopts built-in turbine for heat dissipation and placement, utilizes the air Date Recue/Date Received 2021-09-17 in the space of the sealed automobile lamp component, the independent space of the turbine of the lamp body and the high-speed rotation of the fan blades to generate high-pressure airflow, which quickly and continuously blows away the surface heat of the lamp beads by spraying to the LED lamp beads through the lamp bead diversion channel, and reduces the heat accumulation at the heat source to a greater extent;

[0038] At the same time, the high-pressure airflow also cools down the inside of the substrate that is attached to the lamp beads, which effectively reduces the temperature of the outside and the inside, and achieves the purpose of heat dissipation.

[0039] At the same time, because the lamp works in a sealed automobile lamp component, the air in the automobile lamp component is used to circulate heat, and the air in the automobile lamp component can be heated to about 70 C within about 20 minutes of work, so as to realize that if the automobile lamp component is exposed to use in cold rain and snow, when ice and snow cover the surface of the component, the air temperature in the component can be as high as 70 C and the surface temperature is also close to 50 C, therefore, the ice or snow covering the surface of the component can be melted away, making it safer to drive on rainy and snowy days.

[0040] The above are only specific implementations of the invention, but the protection scope of the invention is not limited thereto. Any changes or substitutions that are not thought of through creative work shall be covered by the protection scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.

Date Recue/Date Received 2021-09-17

Claims

What is claimed is:

1. An inner circulation heat-dissipating LED lamp cap, comprising a shell (1), a control circuit, and a power supply circuit, wherein one side of the shell (1) is connected with a light-emitting component; the outside of the shell (1) is installed with a metal holder (5); the inside of the shell (1) is provided with a heat-dissipating component; the output end of the heat-dissipating component directly faces the light-emitting component; the high pressure airflow generated by the heat-dissipating component is blown to the light-emitting component to take away the heat, and then an inner circulation warming airflow is formed inside.

2. The inner circulation heat-dissipating LED lamp cap according to claim 1, wherein the light-emitting component comprises a red copper lamp post (4); a flat mounting surface (42) is respectively formed on the upper and lower surfaces of the red copper lamp post (4); a hollow cavity (41) is formed inside the red copper lamp post (4); a copper substrate (2) is respectively installed on the upper and lower surfaces of the red copper lamp post (4); one end of the copper substrates (2) respectively extends into the hollow cavity (41) of the red copper lamp post (4);
the copper substrate (2) is installed with LED chips (16).

3. The inner circulation heat-dissipating LED lamp cap according to claim 2, wherein a thermal conductive sheet (3) is provided between the bottom of the copper substrate (2) and the red copper lamp post (4); the heat on the LED chip (16) is transferred to the red copper lamp post (4) through the thermal conductive sheet (3).

4. The inner circulation heat-dissipating LED lamp cap according to claim 2, wherein after the copper substrate (2) is fixedly installed on the red copper lamp post (4), the high-pressure airflow generated by the heat-dissipating component enters from the air inlet at one end of the red copper lamp post (4), and passes through the diversion channel at the upper end of the copper substrate (2) to take away the heat on the LED chip (16).

5. The inner circulation heat-dissipating LED lamp cap according to claim 3, wherein the thermal conductive sheet (3) adopts a preformed tin sheet.

6. The inner circulation heat-dissipating LED lamp cap according to claim 1, wherein the heat-dissipating component adopts a spiral jet fan (14); the spiral jet fan (14) and the light-emitting component are connected to the control circuit and the power supply circuit.

7. The inner circulation heat-dissipating LED lamp cap according to claim 1, wherein the inside of the shell (1) is further provided with an FPC connecting plate (15);
one end of the shell (1) is riveted with a butt joint (8); the red copper lamp post (4) in the light-emitting component is sleeved on the butt joint (8), at this time the FPC connecting plate (15) is connected to the copper substrate (2); the other end of the FPC connecting plate (15) is connected to the control circuit and the power supply circuit.

8. The inner circulation heat-dissipating LED lamp cap according to claim 6, wherein the spiral jet fan (14) is provided with a fixing plate (13); one side of the spiral jet fan (14) is sleeved with a shock-absorbing silicone piece (6), and the other side thereof is sleeved with a shock-absorbing fixing silicone piece (7).

9. The inner circulation heat-dissipating LED lamp cap according to claim 1, wherein the shell (1) is an aluminum shell; the end of the aluminum shell is fixed with an aluminum rear cover (9); the aluminum rear cover (9) is provided with a wire fixing sleeve (17); a power control cable (10) penetrates the aluminum rear cover (9) and the wire fixing sleeve (17) and is connected to the light-emitting component and the heat-dissipating component.

10. The inner circulation heat-dissipating LED lamp cap according to claim 1, wherein the control circuit and the power supply circuit comprise a drive (11), a plug (12) and a power control cable (10); the assembling surface of the metal holder (5) and the aluminum shell is provided with more than one silicone sealing ring.