CN218494885U

CN218494885U - LED car light of low decay

Info

Publication number: CN218494885U
Application number: CN202222998306.3U
Authority: CN
Inventors: 孙翔飞; 施成杯; 刘洋
Original assignee: Zhenjiang Shangwo Electronic Co ltd
Current assignee: Zhenjiang Shangwo Electronic Co ltd
Priority date: 2022-11-10
Filing date: 2022-11-10
Publication date: 2023-02-17
Anticipated expiration: 2032-11-10

Abstract

The utility model discloses a LED car light of low decay relates to LED car light technical field, its technical essential: the LED lamp comprises a PCB, wherein an LED lamp bead is arranged above the PCB, a reflecting bowl is sleeved outside the LED lamp bead, a radiator is arranged at the bottom of the PCB, the LED lamp bead is fixed with the PCB through a heat conduction patch, a heat conduction binding surface is arranged at the bottom of the PCB, the heat conduction binding surface is bound with the top of the radiator, a first accommodating hole is formed in the heat conduction binding surface, a second accommodating hole is formed in the top of the radiator, the first accommodating hole is communicated with the second accommodating hole, a micro fan is arranged in the first accommodating hole, and the micro fan faces the direction of the radiator; the utility model discloses have better radiating effect, reduce LED lamp pearl programming rate to reduce luminance decay rate.

Description

LED car light of low decay

Technical Field

The utility model belongs to the technical field of the LED car light technique and specifically relates to a LED car light of low decay is related to.

Background

The car light is a lamp on a vehicle, is a tool for illuminating the road when the vehicle runs at night, and is also a prompting tool for sending various vehicle running signals, and the car light is generally divided into a head light, a tail light, a steering light and the like.

The LED car lamp module radiator generally comprises a radiator body, a PCB, an LED, a reflecting bowl and the like. Radiator body generally adopts die-casting aluminium alloy material die-casting shaping among traditional LED car light module radiator, and the radiating effect is poor, and radiator body comes through secondary operation with the binding face of the PCB board that has LED moreover, and its plane degree is higher for the porosity height and the uniformity of PCB that have LED and radiator body are poor, and the radiating effect is not good, and the temperature rises fast during the LED use, and LED luminance decay rate is fast. The existing application number is CN201922044770.7, the heat conduction and heat dissipation effect of the LED vehicle lamp module radiator is good, the attenuation speed of LED brightness in use can be reduced, and another LED vehicle lamp with good heat dissipation effect and low brightness attenuation speed is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a LED car light of low decay has better radiating effect, reduces LED lamp pearl programming rate to reduce luminance decay rate.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a LED car light of low decay, includes the PCB board, PCB board top is equipped with LED lamp pearl, LED lamp pearl overcoat is equipped with reflector, PCB board bottom is equipped with the radiator, LED lamp pearl is fixed mutually with the PCB board through heat conduction paster, PCB board bottom surface is equipped with the heat conduction binding face, the heat conduction binding face is laminated with the radiator top mutually, it has first accommodation hole to open on the heat conduction binding face, the radiator top is equipped with the second accommodation hole, first accommodation hole is linked together and inside is equipped with miniature fan with the second accommodation hole, miniature fan is towards the radiator direction.

By adopting the scheme, when the LED lamp is used, the PCB controls the LED lamp beads to emit light, and the reflecting bowl reflects the light emitted by the LED lamp beads, so that the brightness is improved; the LED lamp bead generates heat when emitting light, and the heat is transmitted to the PCB board through the heat conduction paster (great surface area), so that the heat conduction efficiency is improved, then the heat is transmitted to the heat conduction binding face through the PCB board, and finally, the heat is transmitted to the radiator, so that the heat dissipation work is completed, the micro fan is started, the heat of the radiator is taken away, the heat dissipation effect is further improved, the heating speed of the LED lamp bead is reduced, and the brightness attenuation speed is reduced.

Preferably, the radiator includes a plurality of heat conduction attaching plates, each heat conduction attaching plate is connected through fixed frame, heat conduction attaching plate and heat conduction attaching surface laminate mutually, each heat conduction attaching plate bottom is equipped with a plurality of heat conduction fins, the second accommodation hole is seted up on heat conduction attaching plate.

Preferably, each heat conduction fin on the outermost side is connected through a limiting frame.

Preferably, the light reflecting bowl is connected with the radiator through a positioning mechanism, and the PCB is located between the radiator and the light reflecting bowl.

Preferably, positioning mechanism is including locating the locating lever of the week side in reflection of light bowl bottom portion, it has the through-hole that supplies the locating lever to pass through to open on the PCB board, the radiator top is equipped with the constant head tank that suits with the locating lever.

The utility model discloses following beneficial effect has:

when the LED lamp is used, the PCB controls the LED lamp beads to emit light, and the light rays emitted by the LED lamp beads are reflected by the reflecting bowl, so that the brightness is improved; the LED lamp pearl produces the heat when luminous, and the heat improves heat conduction efficiency on transmitting the PCB board through heat conduction paster (great surface area), on later the heat transmits the heat conduction binding face through the PCB board, transmits on the radiator at last, accomplishes the heat dissipation work, and the miniature fan starts, takes away the heat of radiator, further improves the radiating effect to reduce LED lamp pearl programming rate, thereby reduce luminance decay rate.

Drawings

Fig. 1 is a schematic view of the disassembly in embodiment 1 of the present invention.

Fig. 2 is a schematic cross-sectional view of embodiment 1 of the present invention.

Fig. 3 is a schematic view of a heat sink structure according to embodiment 2 of the present invention.

In the figure: 1. a PCB board; 2. an LED lamp bead; 3. a light reflecting bowl; 4. a heat sink; 401. a heat-conducting attachment plate; 402. a heat conductive fin; 403. a fixing frame; 404. a limiting frame; 501. positioning a rod; 502. positioning a groove; 6. a heat conducting patch; 7. a heat-conducting binding surface.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1

A low-attenuation LED car lamp is shown in a figure 1-2 and comprises a PCB (printed circuit board) 1, an LED lamp bead 2 is arranged above the PCB 1, a reflecting bowl 3 is sleeved outside the LED lamp bead 2, a radiator 4 is arranged at the bottom of the PCB 1, the LED lamp bead 2 is fixed with the PCB 1 through a heat-conducting patch 6, a heat-conducting binding surface 7 is arranged on the bottom surface of the PCB 1, the heat-conducting binding surface 7 is bound with the top of the radiator 4, a first accommodating hole is formed in the heat-conducting binding surface 7, a second accommodating hole is formed in the top of the radiator 4, the first accommodating hole is communicated with the second accommodating hole, a micro fan is arranged in the first accommodating hole and the second accommodating hole, and the micro fan faces the direction of the radiator 4;

as shown in fig. 1-2, when the LED lamp is used, the PCB 1 controls the LED lamp beads 2 to emit light, and the reflecting bowl 3 reflects the light emitted by the LED lamp beads 2, so that the brightness is improved; LED lamp pearl 2 produces the heat when giving out light, the heat passes through on heat conduction paster 6 (great surface area) transmits PCB board 1, improves heat conduction efficiency, on later the heat transmits heat conduction binding face 7 through PCB board 1, on transmitting radiator 4 at last, accomplish the heat dissipation work, the micro fan starts, takes away the heat of radiator 4, further improves the radiating effect, thereby reduces LED lamp pearl 2 programming rate, thereby reduces luminance decay rate.

As shown in fig. 1-2, the heat sink 4 includes a plurality of heat-conducting attachment plates 401, each heat-conducting attachment plate 401 is connected by a fixing frame 403, the heat-conducting attachment plates 401 are attached to the heat-conducting attachment surface 7, a plurality of heat-conducting fins 402 are disposed at the bottom of each heat-conducting attachment plate 401, and a second accommodating hole is formed in the heat-conducting attachment plates 401; the heat firstly reaches the heat-conducting attaching plate 401, the heat-conducting attaching plate 401 improves the attaching area of the attaching surface, the heat-conducting effect is improved, and then the heat is transmitted to the heat-conducting fins 402 for heat dissipation, so that the heat dissipation is completed.

As shown in fig. 1-2, the outermost heat-conducting fins 402 are connected by a limiting frame 404, so as to limit the position range of the heat-conducting fins 402 and ensure the structural stability thereof.

As shown in fig. 1-2, the reflector 3 is connected with the radiator 4 through a positioning mechanism, and the PCB board 1 is located between the radiator 4 and the reflector 3; the light reflecting bowl 3 is convenient to disassemble and assemble and convenient to use.

As shown in fig. 1-2, the positioning mechanism includes a positioning rod 501 disposed on the periphery of the bottom of the reflector 3, a through hole for the positioning rod 501 to pass through is formed on the pcb board 1, and a positioning groove 502 adapted to the positioning rod 501 is disposed on the top of the heat sink 4; the positioning rod 501 is clamped into the positioning groove 502 through the through hole, the installation is completed, the light reflecting bowl 3 is pulled forcefully, and the positioning rod 501 can be pulled out of the positioning groove 502 to complete the dismantling.

The positioning groove 502 is formed in a hole shape, so that the positioning groove is convenient to process and disassemble the positioning rod 501.

Example 2

As shown in fig. 3, unlike embodiment 1, the positioning groove 502 is tubular, which is difficult to process, but improves the clamping stability.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "secured" are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to solve the same technical problems and achieve the same technical effects are all covered in the protection scope of the present invention.

Claims

1. The utility model provides a LED car light of low decay, includes PCB board (1), PCB board (1) top is equipped with LED lamp pearl (2), LED lamp pearl (2) overcoat is equipped with reflector (3), PCB board (1) bottom is equipped with radiator (4), its characterized in that: LED lamp pearl (2) are fixed mutually with PCB board (1) through heat conduction paster (6), PCB board (1) bottom surface is equipped with heat conduction binding face (7), heat conduction binding face (7) are laminated mutually with radiator (4) top, it has first accommodation hole to open on heat conduction binding face (7), radiator (4) top is equipped with the second accommodation hole, first accommodation hole is linked together and inside is equipped with the micro-fan with the second accommodation hole, the micro-fan is towards radiator (4) direction.

2. The low attenuation LED vehicular lamp of claim 1, wherein: radiator (4) include a plurality of heat conduction attaching plate (401), each heat conduction attaching plate (401) is connected through fixed frame (403), heat conduction attaching plate (401) and heat conduction attaching surface (7) laminate mutually, each heat conduction attaching plate (401) bottom is equipped with a plurality of heat conduction fins (402), the second accommodation hole is seted up on heat conduction attaching plate (401).

3. A low attenuation LED vehicle light according to claim 2, characterized in that: the heat conducting fins (402) on the outermost side are connected through a limiting frame (404).

4. The low attenuation LED vehicle lamp according to claim 1, characterized in that: the reflector (3) is connected with the radiator (4) through the positioning mechanism, and the PCB (1) is located between the radiator (4) and the reflector (3).

5. The low-attenuation LED vehicle lamp according to claim 4, characterized in that: the positioning mechanism comprises positioning rods (501) arranged on the bottom peripheral sides of the light reflecting bowl (3), through holes for the positioning rods (501) to pass through are formed in the PCB (1), and positioning grooves (502) matched with the positioning rods (501) are formed in the top of the radiator (4).