LED automobile running light

Abstract

The application provides an LED automobile running light, which comprises a lamp head, an LED assembly, a heat dissipation aluminum sleeve and a heat dissipation fan. The LED assembly comprises a flexible circuit board and a plurality of LED lamp beads. The plurality of LED lamp beads are fixed on the flexible circuit board respectively and are electrically connected with the flexible circuit board. The flexible circuit board is sleeved outside the heat dissipation aluminum sleeve, and the flexible circuit board is tightly attached to the outer peripheral surface of the heat dissipation aluminum sleeve. One end of the heat dissipation aluminum sleeve is connected with the lamp head. The heat dissipation fan is connected with the other end of the heat dissipation aluminum sleeve. The LED automobile running light can be efficiently cooled, and the service life of the LED lamp beads and the flexible circuit board is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lighting devices, in particular to an LED automobile running light. BACKGROUND

[0002] The LED automobile running light is a kind of automobile lighting lamp with light emitting diode (LED) as light source, mainly used for providing lighting and signal indication during automobile running to ensure driving safety and improve vehicle recognition. The heat dissipation of the LED automobile running light is the key to ensure its efficient operation and prolong its service life. The current LED automobile running light generally has a fan arranged thereon to accelerate heat dissipation. However, the inventors have found in the process of implementing the present application that the prior art has the following problems: for high-power LED automobile running light, the heat generated is relatively large, and it is difficult to meet the heat dissipation requirement by relying on the fan alone, resulting in poor heat dissipation effect. SUMMARY

[0003] The present application provides an LED automobile running light to solve the technical problem of poor heat dissipation effect of the LED automobile running light in the prior art, and the technical solution is as follows:

[0004] The present application provides an LED automobile running light, which comprises:

[0005] a lamp head;

[0006] an LED assembly comprising a flexible circuit board and a plurality of LED lamp beads, the plurality of LED lamp beads being fixed on the flexible circuit board respectively, and the plurality of LED lamp beads being electrically connected with the flexible circuit board respectively;

[0007] a heat dissipation aluminum sleeve, the flexible circuit board being sleeved outside the heat dissipation aluminum sleeve, the flexible circuit board being tightly attached to the outer peripheral surface of the heat dissipation aluminum sleeve, and one end of the heat dissipation aluminum sleeve being connected with the lamp head;

[0008] a heat dissipation fan, the heat dissipation fan being connected with the other end of the heat dissipation aluminum sleeve.

[0009] In one embodiment, the LED automobile running light further comprises a heat dissipation base, one end of the heat dissipation base being tightly attached to the flexible circuit board, one end of the heat dissipation base being connected with one end of the heat dissipation aluminum sleeve, the flexible circuit board being located between the heat dissipation base and the heat dissipation aluminum sleeve, and the other end of the heat dissipation base being connected with the lamp head.

[0010] In one embodiment, the LED automobile running light further comprises a control board, the control board being electrically connected with the flexible circuit board, and the control board being electrically connected with the lamp head.

[0011] In one embodiment, the control board is located inside the heat-dissipating aluminum sleeve, the side of the control board is connected with the inner wall of the heat-dissipating aluminum sleeve, and the heat-dissipating aluminum sleeve is located between the flexible circuit board and the control board.

[0012] In one embodiment, two opposite fixing clamping grooves are formed in the inner wall of the heat-dissipating aluminum sleeve, the fixing clamping grooves extend along the height direction of the heat-dissipating aluminum sleeve, and the two opposite sides of the control board are respectively arranged in the two fixing clamping grooves.

[0013] In one embodiment, a fixing support is fixed inside one end of the heat-dissipating aluminum sleeve, one end of the control board abuts against the fixing support, the fixing support is provided with a fan fixing groove, the bottom of the heat-dissipating fan is arranged in the fan fixing groove, and the fan fixing groove is matched with the bottom of the heat-dissipating fan.

[0014] In one embodiment, the LED automobile running light further comprises a fan protection shell, the fan protection shell is sleeved outside the heat-dissipating fan, a first limiting convex part is arranged on the outer peripheral surface of the other end of the heat-dissipating aluminum sleeve, a first limiting groove is arranged on the inner wall of one end of the fan protection shell, one end of the fan protection shell is sleeved outside one end of the heat-dissipating aluminum sleeve, the first limiting convex part is located in the first limiting groove, and the fan protection shell is connected with the heat-dissipating aluminum sleeve through the first limiting convex part and the first limiting groove.

[0015] In one embodiment, a second limiting convex part is arranged on the outer peripheral surface of one end of the heat-dissipating aluminum sleeve, a second limiting groove is arranged on the inner wall of one end of the heat-dissipating base, and the second limiting convex part and one end of the flexible circuit board are located in the second limiting groove.

[0016] In one embodiment, a plurality of heat-dissipating grooves are arranged on the outer peripheral surface of the heat-dissipating aluminum sleeve along the circumferential direction of the heat-dissipating aluminum sleeve, and a plurality of heat-dissipating holes are formed in the heat-dissipating base along the circumferential direction of the heat-dissipating base.

[0017] In one embodiment, the lamp head is provided with a third limiting groove, the other end of the heat-dissipating base is provided with a third limiting convex part, the third limiting convex part is arranged in the third limiting groove, and the heat-dissipating base is connected with the lamp head through the third limiting groove and the third limiting convex part.

[0018] The above technical scheme has at least the following advantages or beneficial effects:

[0019] The LED automobile running light of the embodiment of the present application comprises a lamp head, an LED assembly, a heat dissipation aluminum sleeve and a heat dissipation fan, the LED assembly comprises a flexible circuit board and LED lamp beads fixed on the flexible circuit board. Since the flexible circuit board is closely attached to the outer circumferential surface of the heat dissipation aluminum sleeve, and the heat dissipation fan is connected to the other end of the heat dissipation aluminum sleeve, the heat generated by the LED lamp beads and the flexible circuit board is directly transmitted to the heat dissipation aluminum sleeve, and the heat on the heat dissipation aluminum sleeve is transmitted away through the heat dissipation fan, so that rapid heat dissipation is realized. The close attachment of the flexible circuit board and the heat dissipation fan and the arrangement of the heat dissipation fan can realize high-efficiency heat dissipation of the LED automobile running light, and prolong the service life of the LED lamp beads and the flexible circuit board.

[0020] The above summary is intended to illustrate only and is not intended to limit the application in any way. Further aspects, embodiments and features of the application will be readily apparent from the following detailed description, taken in conjunction with the drawings and the appended claims. BRIEF DESCRIPTION OF DRAWINGS

[0021] In the drawings, like numerals refer to like elements throughout the various drawings. The drawings are not necessarily to scale, the emphasis instead being placed on the relation between various elements. It should be understood that the drawings only depict some embodiments of the application and should not be considered limiting of the scope of the application.

[0022] Figure 1 FIG. 1 is a structural schematic diagram of an LED automobile running light;

[0023] Figure 2 FIG. 2 is an exploded view of the LED automobile running light;

[0024] Figure 3 FIG. 3 is another structural schematic diagram of the LED automobile running light;

[0025] Figure 4 FIG. 4 is a structural schematic diagram of a heat dissipation aluminum sleeve;

[0026] Figure 5 FIG. 5 is a sectional view of the LED automobile running light;

[0027] Figure 6 FIG. 6 is a combined schematic diagram of a heat dissipation fan and a fan protection shell;

[0028] BRIEF DESCRIPTION OF DRAWINGS

[0029] 1, lamp head; 2, LED assembly; 3, heat dissipation aluminum sleeve; 4, heat dissipation fan; 21, flexible circuit board; 22, LED lamp bead; 5, control board; 31, fixed clamping groove; 32, fixed support; 33, fan fixing groove; 6, fan protection shell; 34, first limiting convex part; 61, first limiting groove; 7, heat dissipation base; 35, second limiting convex part; 71, second limiting groove; 11, third limiting groove; 72, third limiting convex part; 36, heat dissipation groove; 73, heat dissipation hole. DETAILED DESCRIPTION

[0030] Hereinafter, only certain exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0031] As Figures 1 to 6 shown, the present application provides an LED automobile running light, comprising a lamp head 1, an LED assembly 2, a heat dissipation aluminum sleeve 3 and a heat dissipation fan 4. Wherein, the LED assembly 2 comprises a flexible circuit board 21 and a plurality of LED lamp beads 22, the plurality of LED lamp beads 22 are respectively fixed on the flexible circuit board 21, and the plurality of LED lamp beads 22 are respectively electrically connected with the flexible circuit board 21. The flexible circuit board 21 is sleeved outside the heat dissipation aluminum sleeve 3, the flexible circuit board 21 is closely attached to the outer peripheral surface of the heat dissipation aluminum sleeve 3, and one end of the heat dissipation aluminum sleeve 3 is connected with the lamp head 1. The heat dissipation fan 4 is connected with the other end of the heat dissipation aluminum sleeve 3.

[0032] The LED automobile running light of the present application comprises a lamp head 1, an LED assembly 2, a heat dissipation aluminum sleeve 3 and a heat dissipation fan 4, the LED assembly 2 comprises a flexible circuit board 21 and LED lamp beads 22 fixed on the flexible circuit board 21. Since the flexible circuit board 21 is closely attached to the outer peripheral surface of the heat dissipation aluminum sleeve 3, and the heat dissipation fan 4 is connected with the other end of the heat dissipation aluminum sleeve 3, the heat generated by the LED lamp beads 22 and the flexible circuit board 21 is directly transmitted to the heat dissipation aluminum sleeve 3, and the heat on the heat dissipation aluminum sleeve 3 is transmitted away through the heat dissipation fan 4, realizing rapid heat dissipation. The present application can realize high-efficiency heat dissipation of the LED automobile running light through the close attachment of the flexible circuit board 21 and the heat dissipation fan 4, and the setting of the heat dissipation fan 4, prolonging the service life of the LED lamp beads 22 and the flexible circuit board 21.

[0033] The flexible circuit board 21 is a prior art, which is a circuit board supported by a flexible substrate, has high flexibility and plasticity, and can be freely bent, wound and folded. The flexible circuit board 21 of the embodiment surrounds a cylindrical structure, and the two side edges of the flexible circuit board 21 can be connected by welding, adhesive tape, etc. A plurality of LED lamp beads 22 are arranged on the outer circumferential surface of the flexible circuit board 21 and are spaced apart. The LED lamp beads 22 can be mounted on the flexible circuit board 21 by manual welding or surface mounting technology.

[0034] In an embodiment, the LED automobile running light further comprises a control board 5, the control board 5 is electrically connected with the flexible circuit board 21 through a wire, and the control board 5 is electrically connected with the lamp holder 1. The control board 5 is a prior PCB board.

[0035] In order to dissipate heat of the control board 5, the control board 5 is located in the inside of the heat dissipation aluminum sleeve 3, the side surface of the control board 5 is connected with the inner wall of the heat dissipation aluminum sleeve 3, and the heat dissipation aluminum sleeve 3 is located between the flexible circuit board 21 and the control board 5. Since the side surface of the control board 5 is connected with the heat dissipation aluminum sleeve 3, the control board 5 can transfer heat to the heat dissipation aluminum sleeve 3, so that the heat is dissipated through the heat dissipation fan 4.

[0036] In order to realize the connection between the control board 5 and the heat dissipation aluminum sleeve 3, two opposite fixing grooves 31 are formed on the inner wall of the heat dissipation aluminum sleeve 3. The two opposite side surfaces of the control board 5 are respectively arranged in the two fixing grooves 31, so that the control board 5 is fixed in the inside of the fixing grooves 31.

[0037] In an embodiment, in order to realize the connection between the heat dissipation fan 4 and the heat dissipation aluminum sleeve 3, a fixed support 32 is fixed in one end of the heat dissipation aluminum sleeve 3. One end of the control board 5 abuts against the fixed support 32, the fixed support 32 has a fan fixing groove 33, the bottom of the heat dissipation fan 4 is arranged in the fan fixing groove 33, and the fan fixing groove 33 is matched with the bottom of the heat dissipation fan 4. Through the arrangement of the fixed support 32, the bottom of the heat dissipation fan 4 is fixed in the fan fixing groove 33, and the connection between the heat dissipation fan 4 and the heat dissipation aluminum sleeve 3 is realized. The fixed support 32 and the heat dissipation aluminum sleeve 3 can be integrally formed, and the fixed support 32 can also be fixed on the heat dissipation aluminum sleeve 3 by bolts or the like.

[0038] In an embodiment, the LED automobile running light further comprises a fan protection shell 6, the fan protection shell 6 is sleeved on the outside of the heat dissipation fan 4, the heat dissipation fan 4 is protected by the fan protection shell 6, and the fan protection shell 6 is connected with the heat dissipation aluminum sleeve 3.

[0039] In order to realize the connection of the fan protection shell 6 and the heat dissipation aluminum sleeve 3, a first limiting protrusion 34 is arranged on the outer circumferential surface of the other end of the heat dissipation aluminum sleeve 3, and a first limiting groove 61 is arranged on the inner wall of one end of the fan protection shell 6. One end of the fan protection shell 6 is sleeved on the outer end of one end of the heat dissipation aluminum sleeve 3, the first limiting protrusion 34 is located in the first limiting groove 61, and the fan protection shell 6 is connected with the heat dissipation aluminum sleeve 3 through the first limiting protrusion 34 and the first limiting groove 61, so that the fan protection shell 6 and the heat dissipation aluminum sleeve 3 are tightly assembled together.

[0040] In an embodiment, in order to achieve better heat dissipation effect, the LED automobile running lamp further comprises a heat dissipation base 7. One end of the heat dissipation base 7 is tightly attached to the flexible circuit board 21, one end of the heat dissipation base 7 is connected with the heat dissipation aluminum sleeve 3, the flexible circuit board 21 is located between the heat dissipation base 7 and the heat dissipation aluminum sleeve 3, and the other end of the heat dissipation base 7 is connected with the lamp holder 1. The flexible circuit board 21 can also directly transmit heat to the heat dissipation base 7, so that the heat is transmitted away through the heat dissipation base 7. The heat dissipation base 7 and the heat dissipation aluminum sleeve 3 can be made of aluminum material.

[0041] In order to realize the connection of the heat dissipation base 7 and the heat dissipation aluminum sleeve 3, a second limiting protrusion 35 is arranged on the outer circumferential surface of one end of the heat dissipation aluminum sleeve 3, a second limiting groove 71 is arranged on the inner wall of one end of the heat dissipation base 7, and the second limiting protrusion 35 and one end of the flexible circuit board 21 are located in the second limiting groove 71. The connection of the heat dissipation aluminum sleeve 3 and the heat dissipation base 7 is realized through the second limiting groove 71 and the second limiting protrusion 35.

[0042] One end of the heat dissipation base 7 is connected with the heat dissipation aluminum sleeve 3, and the other end of the heat dissipation base 7 is connected with the lamp holder 1. In order to realize the connection of the heat dissipation base 7 and the lamp holder 1, the lamp holder 1 has a third limiting groove 11, the other end of the heat dissipation base 7 has a third limiting protrusion 72, the third limiting protrusion 72 is located in the third limiting groove 11, and the heat dissipation base 7 is connected with the lamp holder 1 through the third limiting groove 11 and the third limiting protrusion 72.

[0043] In an embodiment, in order to achieve better heat dissipation effect, a plurality of heat dissipation grooves 36 are arranged on the outer circumferential surface of the heat dissipation aluminum sleeve 3 along the circumferential direction of the heat dissipation aluminum sleeve 3, and the heat dissipation area is increased through the heat dissipation grooves 36. A plurality of heat dissipation holes 73 are arranged on the heat dissipation base 7 along the circumferential direction of the heat dissipation base 7.

[0044] In use, the heat generated by the LED assembly 2 and the heat generated by the control board 5 is directly transmitted to the heat dissipation aluminum sleeve 3 and dissipated through the heat dissipation fan 4. At the same time, part of the heat generated by the LED assembly 2 and part of the heat on the heat dissipation aluminum sleeve 3 can also be directly transmitted to the heat dissipation base 7 and dissipated through the heat dissipation base 7.

[0045] The lamp holder 1 of the embodiment of the present application can be a standard lamp holder used in the prior art, which is the prior art. When the LED automobile running lamp is used, the lamp holder 1 is connected with a storage battery on the automobile to obtain power, thereby supplying power for the LED automobile running lamp, and the power supply mode is the prior art.

[0046] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0047] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0048] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of various changes or replacements within the technical scope disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An LED automotive driving light, characterized in that, include: Lamp holder; The LED assembly includes a flexible circuit board and a plurality of LED beads, the plurality of LED beads being fixed on the flexible circuit board and electrically connected to the flexible circuit board. A heat dissipation aluminum sleeve, wherein the flexible circuit board is sleeved on the outside of the heat dissipation aluminum sleeve, the flexible circuit board is tightly fitted to the outer peripheral surface of the heat dissipation aluminum sleeve, and one end of the heat dissipation aluminum sleeve is connected to the lamp holder; A cooling fan is connected to the other end of the heat dissipation aluminum sleeve.

2. The LED automotive driving light according to claim 1, characterized in that, The LED automotive driving light also includes a heat sink base, one end of which is tightly fitted to the flexible circuit board and connected to one end of the heat sink aluminum sleeve. The flexible circuit board is located between the heat sink base and the heat sink aluminum sleeve, and the other end of the heat sink base is connected to the lamp head.

3. The LED automotive driving light according to claim 2, characterized in that, The LED automotive driving light also includes a control board, which is electrically connected to the flexible circuit board and the lamp head.

4. The LED automotive driving light according to claim 3, characterized in that, The control board is located inside the heat dissipation aluminum sleeve, and the side of the control board is connected to the inner wall of the heat dissipation aluminum sleeve. The heat dissipation aluminum sleeve is located between the flexible circuit board and the control board.

5. The LED automotive driving light according to claim 4, characterized in that, The inner wall of the heat dissipation aluminum sleeve has two oppositely arranged fixing slots, which extend along the height direction of the heat dissipation aluminum sleeve. The two opposite sides of the control board are respectively placed in the two fixing slots.

6. The LED automotive driving light according to claim 3, characterized in that, One end of the heat dissipation aluminum sleeve is fixed with a fixing bracket, one end of the control board abuts against the fixing bracket, the fixing bracket has a fan fixing groove, the bottom of the heat dissipation fan is placed in the fan fixing groove, and the fan fixing groove matches the bottom of the heat dissipation fan.

7. The LED automotive driving light according to any one of claims 1 to 6, characterized in that, The LED automotive driving light also includes a fan protective shell, which is fitted over the outside of the cooling fan. The other end of the aluminum heat sink has a first limiting protrusion on its outer circumference, and one end of the fan protective shell has a first limiting groove on its inner wall. One end of the fan protective shell is fitted over the outside of one end of the aluminum heat sink, and the first limiting protrusion is located in the first limiting groove. The fan protective shell is connected to the aluminum heat sink through the first limiting protrusion and the first limiting groove.

8. The LED automotive driving light according to any one of claims 2 to 6, characterized in that, A second limiting protrusion is provided on the outer circumference of one end of the heat dissipation aluminum sleeve, and a second limiting groove is provided on the inner wall of one end of the heat dissipation base. The second limiting protrusion and one end of the flexible circuit board are both located in the second limiting groove.

9. The LED automotive driving light according to any one of claims 2 to 6, characterized in that, Along the circumferential direction of the heat dissipation aluminum sleeve, a plurality of heat dissipation grooves are provided on the outer circumferential surface of the heat dissipation aluminum sleeve; along the circumferential direction of the heat dissipation base, a plurality of heat dissipation holes are provided on the heat dissipation base.

10. The LED automotive driving light according to any one of claims 2 to 6, characterized in that, The lamp head has a third limiting groove, and the other end of the heat dissipation base has a third limiting protrusion. The third limiting protrusion is placed in the third limiting groove, and the heat dissipation base is connected to the lamp head through the third limiting groove and the third limiting protrusion.

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