LED car lamp with efficient heat dissipation function

Abstract

The utility model discloses a light-emitting diode (LED) car lamp with an efficient heat dissipation function, which belongs to a car lamp in the technical field of car light equipment, and adopts the technical scheme that the LED car lamp comprises a connector, an LED light source, a power source and a power source, the heat dissipation cylinder is fixedly arranged at the lower part of the connector; the printed circuit heat conduction copper substrate is fixedly arranged in the central axis direction of the heat dissipation cylinder, a fan assembly is arranged at the position where the printed circuit heat conduction copper substrate is connected with the heat dissipation cylinder, and a tightly-attached heat dissipation sleeve is arranged outside the printed circuit heat conduction copper substrate. The upper end of the heat dissipation sleeve is fixedly connected with the heat dissipation cylinder; according to the LED car lamp with the fan heat dissipation function, effective conduction heat dissipation is achieved, meanwhile, heat is rapidly conveyed outwards through the fan assembly on the printed circuit heat conduction copper substrate, and therefore the heat dissipation effect of the car lamp in the working process is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile lighting equipment, and particularly relates to an LED automobile lamp with a high-efficiency heat dissipation function. Background Art

[0002] With the emergence and popularization of automobiles, various headlights adapted for automobiles have also been developed. Due to users' demand for lighting, LED headlights have developed in the direction of high power. Many high-power LED headlights increase the brightness and power of LEDs by increasing the driving current. As the current increases, it will cause heat accumulation inside the chip. If the heat dissipation problem of LEDs cannot be solved, it will lead to a series of problems such as LED wavelength drift, decreased light output efficiency, accelerated aging of phosphors, and service life. Therefore, if the heat dissipation problem of headlights is not handled in time, it will cause the headlights to fade and reduce the service life of the headlights. Among them, the headlight radiator plays a greater role in heat dissipation.

[0003] The existing car lamps have the problem of poor heat dissipation effect, and are unable to achieve effective conduction and heat dissipation of the heat generated when the car lamps are working, and are unable to achieve rapid heat dissipation of the heat. Utility Model Content

[0004] The purpose of the utility model is to provide an LED headlamp with efficient heat dissipation function. A heat dissipation tube and a printed circuit thermal conductive copper substrate are sequentially arranged below a connector, and a heat dissipation sleeve is closely arranged on the outside of the printed circuit thermal conductive copper substrate. While achieving effective heat dissipation by conduction, the fan assembly on the printed circuit thermal conductive copper substrate is used to quickly transport heat outward, thereby greatly improving the heat dissipation effect of the headlamp during operation.

[0005] The purpose of the utility model is to provide an LED car lamp with efficient heat dissipation function, comprising:

[0006] A connector, wherein a slot is provided at the upper end of the connector;

[0007] A heat dissipation tube, the heat dissipation tube being fixedly arranged below the connector;

[0008] a printed circuit thermally conductive copper substrate, the printed circuit thermally conductive copper substrate being fixedly arranged in the central axis direction of the heat dissipation tube, and

[0009] A fan assembly is provided at the position where the printed circuit thermal conductive copper substrate is connected to the heat dissipation tube. A heat dissipation sleeve is provided on the outside of the printed circuit thermal conductive copper substrate. The upper end of the heat dissipation sleeve is fixedly connected to the heat dissipation tube.

[0010] Furthermore, the printed circuit thermal conductive copper substrate includes a fan mounting frame and a main board arranged in sequence from top to bottom. The fan mounting frame is a rectangular frame, and the fan assembly is fixedly arranged at the bottom of the fan mounting frame.

[0011] Furthermore, the fan assembly includes a drive motor fixedly mounted on the fan mounting frame, and an impeller mounted on a main shaft of the drive motor, wherein the impeller is arranged to rotate horizontally.

[0012] Furthermore, the heat dissipation sleeve is fixed to the bottom of the heat dissipation tube and is tightly arranged on the outside of the printed circuit thermal conductive copper substrate. The heat dissipation sleeve is provided with multiple sections of heat dissipation fin groups. The heat dissipation sleeve is provided with lamp bead holes, and the lamp beads arranged on the printed circuit thermal conductive copper substrate are placed at the position of the lamp bead holes.

[0013] Furthermore, the heat dissipation sleeve includes two symmetrically arranged heat dissipation plate units, and the planes of the two heat dissipation plate units are closely arranged to form the multi-section heat dissipation fin group.

[0014] Furthermore, the heat dissipation tube is provided with a plurality of heat dissipation openings on the circumferential side surface, and the plurality of heat dissipation openings are evenly distributed on the circumferential side surface of the heat dissipation tube, and the fan assembly is placed in the heat dissipation tube.

[0015] Furthermore, the multi-section heat dissipating fin group includes a fin main board, a first fin group, a second fin group and a third fin group arranged in sequence from top to bottom on the side of the fin main board, the first fin group is a cylindrical structure, and the first fin group is provided with a chamfered groove.

[0016] Furthermore, a clamp is provided at the upper end of the heat dissipation tube, and two clamps are provided. The two clamps are horizontally arranged in the diameter direction of the heat dissipation tube.

[0017] Furthermore, the printed circuit thermal conductive copper substrate is fixedly connected to the heat dissipation sleeve via a fixing screw, and the fixing screw is placed on the third fin group and passes through the third fin group and the printed circuit thermal conductive copper substrate.

[0018] Furthermore, a first thermally conductive copper tube and a second thermally conductive copper tube are sequentially and tightly arranged between the two sides of the printed circuit thermally conductive copper substrate and the heat dissipation sleeve.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. In the present invention, a heat dissipation tube and a printed circuit thermal conductive copper substrate are sequentially arranged below the provided connector. At the same time, a heat dissipation sleeve is provided on the outside of the printed circuit thermal conductive copper substrate, and the upper end of the heat dissipation sleeve is fixedly connected to the heat dissipation tube, so as to conduct the heat generated by the lamp beads on the printed circuit thermal conductive copper substrate during operation, and efficiently dissipate the heat outward through the heat dissipation sleeve. In addition, since a fan assembly is provided at the position where the printed circuit thermal conductive copper substrate is connected to the heat dissipation tube, the provision of the fan assembly greatly improves the effect of diffusing the heat absorbed by the heat dissipation sleeve outward. Furthermore, through the combination of the heat dissipation sleeve and the fan assembly, the problem of short lamp life and poor use effect due to heat when the lamp is in operation is effectively reduced.

[0021] 2. In the present invention, since the printed circuit thermal conductive copper substrate is provided with a fan mounting frame and a main board, the fan mounting frame provides an installation position for fixing the fan assembly, so that the fan assembly can rotate in the horizontal direction to dissipate heat, and the setting of the rectangular frame also realizes the installation protection of the fan assembly.

[0022] 3. In the present invention, by providing the fan assembly with a driving motor fixedly connected to the bottom of the fan mounting frame, fixed installation of the entire fan device is achieved, wherein the impeller is arranged to rotate in the horizontal direction to provide stable heat dissipation.

[0023] 4. In the present invention, a heat dissipation sleeve is tightly attached to the outside of the printed circuit thermal conductive copper substrate, and the heat generated by the printed circuit thermal conductive copper substrate during operation is absorbed and volatilized by the heat dissipation sleeve, thereby achieving a good heat dissipation function. More specifically, since the heat dissipation sleeve is provided with multiple sections of heat dissipation fin groups, and the printed circuit thermal conductive copper substrate is tightly covered as a whole by the multiple sections of heat dissipation fin groups, an efficient heat dissipation function is achieved. The heat dissipation sleeve is provided with a lamp bead hole, which provides an installation arrangement for the lamp beads on the printed circuit thermal conductive copper substrate for normal lighting use.

[0024] 5. In the present invention, a plurality of heat dissipation openings are provided on the circumferential side of the heat dissipation tube, and a fan assembly is placed in the heat dissipation tube, so that the airflow generated during the rotation of the fan can be output stably, thereby further improving the overall heat dissipation effect of the headlight.

[0025] 6. In the present invention, since a fin main board is provided in the multi-stage heat dissipation fin group, and a first fin group, a second fin group and a third fin group are sequentially provided from top to bottom on the side of the fin main board, the provision of multiple fin groups greatly improves the heat dissipation effect of the printed circuit thermal conductive copper substrate. Among them, the provision of chamfered grooves in the first fin group greatly increases the heat dissipation area of ​​the first fin group, which is conducive to the improvement of the heat dissipation function.

[0026] 7. In the present invention, by providing two clamping heads at the upper end of the heat dissipation tube, a clamping method for connecting the heat dissipation tube with the external connection device can be provided, and combined with the clamping groove, the stability of the connection between the entire connector and the external component is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0028] Figure 1 Figure a is a schematic diagram of the overall structure of the vehicle lamp of the present invention;

[0029] Figure 2 Schematic diagram b of the overall structure of the vehicle lamp of the present utility model;

[0030] Figure 3 This is a schematic diagram of the internal structure of the vehicle lamp of the present utility model;

[0031] Figure 4 This is a schematic diagram of the heat dissipation plate unit structure of the utility model;

[0032] Figure 5 This is a schematic diagram of the installation of the first heat-conducting copper tube and the second heat-conducting copper tube of the utility model.

[0033] In the accompanying drawings, 1-connector, 2-card slot, 3-heat sink, 4-printed circuit thermal conductive copper substrate, 5-fan assembly, 6-heat sink, 7-fan mounting frame, 8-mainboard, 9-impeller, 10-multi-section heat sink fin group, 11-lamp bead hole, 12-lamp bead, 13-heat sink, 14-fin mainboard, 15-first fin group, 16-second fin group, 17-third fin group, 18-chamfered groove, 19-card head, 20-fixing screw, 21-heat sink unit, 22-first thermal conductive copper tube, 23-second thermal conductive copper tube, 24-drive motor. DETAILED DESCRIPTION

[0034] The following embodiments of the technical solution of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0035] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which this utility model belongs.

[0036] Reference Figure 1-Figure 5 , an LED car lamp with efficient heat dissipation function, comprising:

[0037] A connector 1, wherein a slot 2 is provided at the upper end of the connector 1;

[0038] A heat dissipation tube 3, the heat dissipation tube 3 is fixedly arranged below the connector 1;

[0039] A printed circuit thermal conductive copper substrate 4, wherein the printed circuit thermal conductive copper substrate 4 is fixedly arranged in the central axis direction of the heat dissipation tube 3, and

[0040] A fan assembly 5 is provided at the position where the printed circuit thermal conductive copper substrate 4 is connected to the heat dissipation tube 3. A heat dissipation sleeve 6 is provided on the outside of the printed circuit thermal conductive copper substrate 4. The upper end of the heat dissipation sleeve 6 is fixedly connected to the heat dissipation tube 3.

[0041] A heat dissipation tube 3 and a printed circuit thermal conductive copper substrate 4 are sequentially arranged below the connector 1. At the same time, a close heat dissipation sleeve 6 is arranged on the outside of the printed circuit thermal conductive copper substrate 4. The upper end of the heat dissipation sleeve 6 is fixedly connected to the heat dissipation tube 3, so that the heat generated by the lamp beads 12 on the printed circuit thermal conductive copper substrate 4 during operation is conducted and efficiently dissipated outward through the heat dissipation sleeve 6. In addition, since a fan assembly 5 is arranged at the position where the printed circuit thermal conductive copper substrate 4 is connected to the heat dissipation tube 3, the arrangement of the fan assembly 5 greatly improves the effect of diffusing the heat absorbed by the heat dissipation sleeve 6 outward. Furthermore, through the combination of the heat dissipation sleeve 6 and the fan assembly 5, the problem of short life and poor use effect of the car lights due to heat when they are working is effectively reduced.

[0042] Preferably, the printed circuit thermal conductive copper substrate 4 includes a fan mounting frame 7 and a main board 8 arranged sequentially from top to bottom. The fan mounting frame 7 is a rectangular frame, and the fan assembly 5 is fixedly arranged at the bottom of the fan mounting frame.

[0043] It can be understood that since the printed circuit thermal conductive copper substrate 4 is provided with a fan mounting frame 7 and a main board 8, the fan mounting frame 7 provides an installation position for fixing the fan assembly 5, so that the fan assembly 5 can rotate in the horizontal direction to dissipate heat, and the setting of the rectangular frame also realizes the installation protection of the fan assembly 5.

[0044] Preferably, the fan assembly 5 includes a drive motor 24 fixedly mounted on the fan mounting frame 7 and an impeller 9 mounted on the main shaft of the drive motor 24 , wherein the impeller 9 is arranged to rotate horizontally.

[0045] By providing the fan assembly 5 with a driving motor fixedly connected to the bottom of the fan mounting frame 7, the fixed installation of the entire fan device is achieved, wherein the impeller 9 is arranged to rotate in the horizontal direction to provide stable heat dissipation.

[0046] Preferably, the heat dissipation sleeve 6 is fixed to the bottom of the heat dissipation tube 3 and is tightly attached to the outside of the printed circuit thermal conductive copper substrate 4. The heat dissipation sleeve 6 is provided with a multi-section heat dissipation fin group 10. The heat dissipation sleeve 6 is provided with a lamp bead hole 11. The lamp bead 12 arranged on the printed circuit thermal conductive copper substrate 4 is placed at the position of the lamp bead hole 11.

[0047] exist Figure 1 In the figure, a heat dissipation sleeve 6 is tightly arranged on the outside of the printed circuit thermal conductive copper substrate 4, and the heat generated by the printed circuit thermal conductive copper substrate 4 during operation is absorbed and volatilized by the heat dissipation sleeve 6, thereby achieving a good heat dissipation function; more specifically, since the heat dissipation sleeve 6 is provided with a multi-section heat dissipation fin group 10, and the printed circuit thermal conductive copper substrate 4 is tightly covered as a whole by the multi-section heat dissipation fin group 10, an efficient heat dissipation function is achieved; wherein, the heat dissipation sleeve 6 is provided with a lamp bead hole 11, which provides an installation arrangement for the lamp bead 12 on the printed circuit thermal conductive copper substrate 4 for normal lighting use.

[0048] Preferably, the heat dissipation sleeve 6 includes two symmetrically arranged heat dissipation plate units 21 , and the planes of the two heat dissipation plate units 21 are closely arranged to form the multi-stage heat dissipation fin group 10 .

[0049] Preferably, the heat dissipation tube 3 is provided with a plurality of heat dissipation openings 13 on the circumferential side surface, and the plurality of heat dissipation openings 13 are evenly distributed on the circumferential side surface of the heat dissipation tube 3 , and the fan assembly 5 is placed in the heat dissipation tube 3 .

[0050] By providing a plurality of heat dissipation openings 13 on the circumferential side of the heat dissipation tube 3 and placing the fan assembly 5 in the heat dissipation tube 3, the airflow generated during the rotation of the fan can be output stably, thereby further improving the overall heat dissipation effect of the headlight.

[0051] Preferably, the multi-section heat dissipating fin group 10 includes a fin main board 14, and a first fin group 15, a second fin group 16 and a third fin group 17 are arranged on the side of the fin main board 14 from top to bottom. The first fin group 15 is a cylindrical structure, and the first fin group 15 is provided with a chamfered groove 18.

[0052] It can be understood that since a fin main board 14 is provided in the multi-section heat dissipating fin group 10, and a first fin group 15, a second fin group 16 and a third fin group 17 are sequentially provided on the side of the fin main board 14 from top to bottom, the provision of multiple fin groups greatly improves the heat dissipation effect of the printed circuit thermal conductive copper substrate 4; wherein, the chamfered groove 18 is provided in the first fin group 15, which greatly increases the heat dissipation area of ​​the first fin group 15, which is beneficial to the improvement of the heat dissipation function.

[0053] Preferably, a clamp 19 is provided at the upper end of the heat dissipation tube 3 , and two clamps 19 are provided. The two clamps 19 are horizontally arranged in the diameter direction of the heat dissipation tube 3 .

[0054] Reference Figure 1 By providing two clamps 19 at the upper end of the heat dissipation tube 3, a clamping method for connecting the heat dissipation tube 3 with the external connection device can be provided, and combined with the card slot 2, the stability of the overall connection between the connector 1 and the external component is improved.

[0055] As a preferred embodiment of this invention, the printed circuit thermal conductive copper substrate 4 is fixedly connected to the heat dissipation sleeve 6 via a fixing screw 20, and the fixing screw 20 is placed on the third fin group 17 and is arranged through the third fin group 17 and the printed circuit thermal conductive copper substrate 4.

[0056] Preferably, a first thermally conductive copper tube 22 and a second thermally conductive copper tube 23 are sequentially and tightly arranged between the two sides of the printed circuit thermally conductive copper substrate 4 and the heat dissipation sleeve 6 .

[0057] The working principle and working process of this utility model:

[0058] The utility model provides an LED car lamp with a fan heat dissipation function. When in use, the upper end of the connector 1 is clamped and installed with an external power supply component while power is supplied. During the lighting process, a heat dissipation tube 3 and a printed circuit thermal conductive copper substrate 4 are sequentially arranged below the connector 1. At the same time, a close heat dissipation sleeve 6 is arranged on the outside of the printed circuit thermal conductive copper substrate 4, and the upper end of the heat dissipation sleeve 6 is fixedly connected to the heat dissipation sleeve 3, so as to conduct the heat generated by the lamp beads 12 on the printed circuit thermal conductive copper substrate 4 during operation, and efficiently dissipate the heat outward through the heat dissipation sleeve 6. In addition, since a fan assembly 5 is provided at the position where the printed circuit thermal conductive copper substrate 4 is connected to the heat dissipation tube 3, the arrangement of the fan assembly 5 greatly improves the effect of diffusing the heat absorbed by the heat dissipation sleeve 6 outward. Furthermore, through the combination of the heat dissipation sleeve 6 and the fan assembly 5, the problem of short lamp life and poor use effect due to heat when the car lamp is in operation is effectively reduced.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. An LED car light with efficient heat dissipation function, characterized in that: include: A connector (1), wherein a slot (2) is provided at the upper end of the connector (1); A heat dissipation tube (3), the heat dissipation tube (3) being fixedly arranged below the connector (1); a printed circuit heat-conducting copper substrate (4), the printed circuit heat-conducting copper substrate (4) being fixedly arranged in the direction of the central axis of the heat dissipation cylinder (3), and A fan assembly (5) is provided at the position where the printed circuit thermal conductive copper substrate (4) is connected to the heat dissipation tube (3); a heat dissipation sleeve (6) is provided on the outside of the printed circuit thermal conductive copper substrate (4); and the upper end of the heat dissipation sleeve (6) is fixedly connected to the heat dissipation tube (3).

2. The LED car lamp with high-efficiency heat dissipation function according to claim 1, characterized in that: The printed circuit thermal conductive copper substrate (4) comprises a fan mounting frame (7) and a main board (8) arranged in sequence from top to bottom; the fan mounting frame (7) is a rectangular frame; and the fan assembly (5) is fixedly arranged at the bottom of the fan mounting frame.

3. The LED car lamp with high-efficiency heat dissipation function according to claim 2, characterized in that: The fan assembly (5) comprises a drive motor (24) fixedly arranged on the fan mounting frame (7), and an impeller (9) arranged on the main shaft of the drive motor (24), wherein the impeller (9) is arranged to rotate horizontally.

4. The LED vehicle lamp with high-efficiency heat dissipation function according to claim 1, characterized in that: The heat dissipation sleeve (6) is fixedly arranged on the bottom of the heat dissipation tube (3) and is closely arranged on the outside of the printed circuit thermal conductive copper substrate (4); the heat dissipation sleeve (6) is provided with a plurality of heat dissipation fin groups (10); the heat dissipation sleeve (6) is provided with a lamp bead hole (11); and the lamp bead (12) provided on the printed circuit thermal conductive copper substrate (4) is placed at the position of the lamp bead hole (11).

5. The LED vehicle lamp with high-efficiency heat dissipation function according to claim 4, characterized in that: The heat dissipation sleeve (6) comprises two symmetrically arranged heat dissipation plate units (21), and the planes of the two heat dissipation plate units (21) are closely arranged to form the multi-segment heat dissipation fin group (10).

6. The LED vehicle lamp with high-efficiency heat dissipation function according to claim 1, characterized in that: The heat dissipation tube (3) is provided with a plurality of heat dissipation openings (13) on the circumferential side surface, and the plurality of heat dissipation openings (13) are evenly distributed on the circumferential side surface of the heat dissipation tube (3). The fan assembly (5) is placed in the heat dissipation tube (3).

7. The LED vehicle lamp with high-efficiency heat dissipation function according to claim 4, characterized in that: The multi-stage heat dissipation fin group (10) comprises a fin main board (14), a first fin group (15), a second fin group (16) and a third fin group (17) arranged in sequence from top to bottom on the side of the fin main board (14), the first fin group (15) being a cylindrical structure, and the first fin group (15) being provided with a chamfered groove (18).

8. The LED vehicle lamp with high-efficiency heat dissipation function according to claim 1, characterized in that: A clamping head (19) is provided at the upper end of the heat dissipation tube (3), and two clamping heads (19) are provided. The two clamping heads (19) are horizontally arranged in the diameter direction of the heat dissipation tube (3).

9. The LED vehicle lamp with high-efficiency heat dissipation function according to claim 7, characterized in that: The printed circuit thermal conductive copper substrate (4) is fixedly connected to the heat dissipation sleeve (6) via a fixing screw (20); the fixing screw (20) is placed on the third fin group (17) and passes through the third fin group (17) and the printed circuit thermal conductive copper substrate (4).

10. The LED vehicle lamp with high-efficiency heat dissipation function according to claim 1, characterized in that: A first heat-conducting copper tube (22) and a second heat-conducting copper tube (23) are sequentially and tightly arranged between the two sides of the printed circuit heat-conducting copper substrate (4) and the heat-dissipating sleeve (6).

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