CN216556956U

CN216556956U - High-efficient heat dissipation type car light, car light circuit and car light circuit board

Info

Publication number: CN216556956U
Application number: CN202123269039.8U
Authority: CN
Inventors: 祝遵明
Original assignee: Dongguan Paidao Industrial Co ltd
Current assignee: Dongguan Paidao Industrial Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-05-17
Anticipated expiration: 2031-12-23

Abstract

The utility model belongs to the technical field of automobile illumination, and particularly relates to a high-efficiency heat-dissipation type automobile lamp, which comprises: the automobile lamp comprises an automobile lamp base, wherein a plurality of supporting columns are arranged inside the automobile lamp base, a supporting plate is arranged on each supporting column, a base upper cover is arranged at the upper end of the automobile lamp base, and a connecting pipe is fixedly connected to one end of the base upper cover; the radiating assembly comprises a radiating fin, a radiating pipe and a radiating fan, the radiating pipe is fixedly connected with the connecting pipe and is arranged at one end of the supporting plate, the radiating fan is fixed at the other end of the supporting plate, and the radiating fin is annularly arranged around the radiating pipe; the car light subassembly, the car light subassembly includes LED lamp shell, circuit board and LED lamp, LED lamp shell cup joint in on the connecting pipe, the tip of LED lamp shell is equipped with a light-emitting groove, circuit board fixed mounting in the LED lamp shell, the LED lamp weld in the one end of circuit board, and see through the light-emitting groove is to external light-emitting.

Description

High-efficient heat dissipation type car light, car light circuit and car light circuit board

Technical Field

The utility model belongs to the technical field of automobile lighting, and particularly relates to a high-efficiency heat-dissipation type automobile lamp, an automobile lamp circuit and an automobile lamp circuit board.

Background

At present, with the rapid development of economy and the improvement of living standard of residents, automobiles widely enter families of ordinary people. The automobile headlamp, also known as an automobile headlamp, is an important component of an automobile and plays an important role in vehicle driving and ensuring driving safety.

At present, automobile LED lamps on the market are mostly in a narrow closed space, so that the heat dissipation condition is poor, heat generated by the LED lamps during working is mainly transferred to the surrounding environment from the interior of the lamp body in a natural convection mode, but because the internal heat is too high, the heat cannot be dissipated in time, water mist is easily generated on the glass of the automobile lamp, and the lighting effect of the automobile lamp is influenced. Therefore, it is necessary to design a high-efficiency heat dissipation type vehicle lamp, a vehicle lamp circuit and a vehicle lamp circuit board.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-efficiency heat-dissipation type car lamp, a car lamp circuit and a car lamp circuit board, and aims to solve the technical problem that in the prior art, due to the fact that the traditional car lamp is poor in heat dissipation effect and cannot discharge heat in time, water mist is generated on car lamp glass, and the lighting effect of the car lamp is affected.

In order to achieve the above object, an embodiment of the present invention provides an efficient heat dissipation type vehicle lamp, including:

the automobile lamp comprises an automobile lamp base, a lamp body and a lamp body, wherein a plurality of supporting columns are arranged inside the automobile lamp base, a supporting plate is arranged on the plurality of supporting columns, a base upper cover is arranged at the upper end of the automobile lamp base, and a connecting pipe is fixedly connected to one end of the base upper cover;

the heat dissipation assembly comprises a heat dissipation fin, a heat dissipation tube and a heat dissipation fan, the heat dissipation tube is fixedly connected with the connecting tube and is arranged at one end of the supporting plate, the heat dissipation fan is fixed at the other end of the supporting plate, and the heat dissipation fin is annularly arranged around the heat dissipation tube;

the car light subassembly, the car light subassembly includes LED lamp shell, circuit board and LED lamp, LED lamp shell cup joint in on the connecting pipe, the tip of LED lamp shell is equipped with a luminous groove, circuit board fixed mounting in the LED lamp shell, the LED lamp weld in the one end of circuit board, and see through luminous groove is luminous to the external world.

Optionally, the cooling tube is equipped with first breach of stepping down, the fin is close to the one end of heat dissipation fan is equipped with the second breach of stepping down, first breach of stepping down with the second breach of stepping down all is used for with the heat dissipation fan is mutually supported.

Optionally, the heat dissipation pipe is provided with a heat dissipation through groove, and the other end of the circuit board is inserted into the heat dissipation through groove, so that the other end of the circuit board is fixed in the car lamp base.

Optionally, the heat dissipation pipe is provided with two heat dissipation through holes, and the heat dissipation through holes are symmetrically arranged by taking the heat dissipation through grooves as axes.

Optionally, the heat dissipation fan with the support column cooperation is connected, makes the heat dissipation fan is fixed in the other end of base, the base upper cover is equipped with a blow vent, the blow vent is located the top of heat dissipation fan.

Optionally, the LED lamp housing and the connecting pipe are connected in a sleeved mode through a connecting piece, a limiting ring is arranged at the bottom end of the LED lamp housing, a plurality of limiting blocks are arranged at the top end of the connecting piece, and the limiting blocks are matched with the limiting ring for limiting.

A vehicle lamp circuit comprising:

the power input circuit comprises a power connection end, a first resistor, a first capacitor, a second capacitor and a first diode, wherein one end of the first capacitor and one end of the first diode are connected with the power connection end, the other end of the first capacitor and the other end of the first diode are grounded, the first resistor and the second capacitor are connected in series, the first resistor is connected with the power connection end, the second capacitor is grounded, and the power input circuit is used for supplying power for the car lamp circuit; the light-emitting circuit comprises at least one light-emitting diode, and the light-emitting diode is connected with the power input circuit; drive control circuit, including LED lamp main control chip, second diode, first inductance and second resistance, LED lamp main control chip with power input circuit connects, LED lamp main control chip still with the one end of second diode with the one end of first inductance is connected, the other end ground connection of second diode, the other end of first inductance with emitting diode connects, the one end of second resistance with LED lamp main control chip connects, the other end ground connection of second resistance.

A vehicle lamp circuit board includes the vehicle lamp circuit.

Optionally, the thickness of the circuit board is 1.0 mm.

Optionally, the circuit board is arranged in a shape of a 'pi'.

One or more technical schemes in the high-efficiency heat dissipation type vehicle lamp provided by the embodiment of the utility model at least have one of the following technical effects:

according to the utility model, the radiating pipe is arranged in the car lamp base, the radiating fins are annularly arranged around the radiating pipe, and the radiating fan at the other end radiates the radiating pipe, so that the radiating effect of the radiating pipe is better. Just the cooling tube with the connecting pipe is connected, the connecting pipe again with LED lamp shell connects, the circuit board is located in the LED lamp shell, from this, when the circuit board produces the heat, through with heat transfer extremely the cooling tube is discharged, just the heat dissipation fan court the cooling tube exhausts, has effectively strengthened the heat dissipation the radiating effect of high-efficient heat dissipation type car light.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic overall structural diagram of an efficient heat dissipation type vehicle lamp according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a lamp base and a heat sink assembly according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a vehicle lamp base according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a circuit board according to an embodiment of the present invention;

fig. 5 is a schematic circuit diagram of a lamp circuit according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

vehicle lamp base-100 support column-110 support plate-120

Base upper cover-130 air vent-131 connecting pipe-140

Connector-150 limited block-151 heat dissipation assembly-200

Heat sink-210 second relief notch-211 heat dissipation tube-220

First abdication gap-221 heat dissipation through groove-222 heat dissipation through hole-223

Heat dissipation fan-230 vehicle lamp assembly-300 LED lamp housing-310

Luminous groove-311 spacing ring-312 circuit board-320

LED Lamp-330 Power input Circuit-400 Lighting Circuit-500

Drive control Circuit-600

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the embodiments of the present invention, and should not be construed as limiting the utility model.

In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying 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 thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

In one embodiment of the present invention, as shown in fig. 1 to 3, there is provided a high-efficiency heat dissipation type vehicular lamp including a vehicular lamp base 100, a heat dissipation assembly 200 and a vehicular lamp assembly 300. The inside of car light base 100 is equipped with many support columns 110, and is a plurality of install a backup pad 120 on the support column 110, a base upper cover 130 is installed to the upper end of car light base 100, a connecting pipe 140 fixed connection in the one end of base upper cover 130. The heat dissipating module 200 includes a heat dissipating fin 210, a heat dissipating pipe 220 and a heat dissipating fan 230, the heat dissipating pipe 220 is fixedly connected to the connecting pipe 140 and is installed at one end of the supporting plate 120, the heat dissipating fan 230 is fixed at the other end of the supporting plate 120, and the heat dissipating fin 210 is annularly disposed around the heat dissipating pipe 220. The car light assembly 300 comprises an LED lamp housing 310, a circuit board 320 and an LED lamp 330, wherein the LED lamp housing 310 is sleeved on the connecting pipe 140, a light emitting groove 311 is formed in the end portion of the LED lamp housing 310, the circuit board 320 is fixedly installed in the LED lamp housing 310, and the LED lamp 330 is welded at one end of the circuit board 320 and emits light to the outside through the light emitting groove 311.

In the utility model, the heat dissipation pipe 220 is arranged in the lamp base 100, the heat dissipation fins 210 are annularly arranged around the heat dissipation pipe 220, and the heat dissipation fan 230 at the other end dissipates heat to the heat dissipation pipe 220, so that the heat dissipation effect of the heat dissipation pipe 220 is better. And the heat dissipation pipe 220 is connected with the connection pipe 140, the connection pipe 140 is connected with the LED lamp housing 310, the circuit board 320 is disposed in the LED lamp housing 310, and therefore, when the circuit board 320 generates heat, the heat is discharged from the heat dissipation pipe 220 through transferring the heat to the heat dissipation fan 230, and the heat dissipation fan exhausts from the heat dissipation pipe 220, so that the heat dissipation effect of the high-efficiency heat dissipation type car lamp is effectively enhanced.

Specifically, in another embodiment of the present invention, as shown in fig. 1 to 3, the heat dissipation tube 220 is provided with a first abdicating notch 221, one end of the heat dissipation fin 210 close to the heat dissipation fan 230 is provided with a second abdicating notch 211, and both the first abdicating notch 221 and the second abdicating notch 211 are used for cooperating with the heat dissipation fan 230. Through setting up first notch 221 of stepping down with second notch 211 of stepping down can make heat dissipation fan 230 with the cooling tube 220 with the distance of fin 210 reduces, makes heat dissipation fan 230 can be close to the cooling tube 220 with the air-out of fin 210 is simultaneously, prevent heat dissipation fan 230 with the cooling tube 220 with produce the collision between the fin 210, increase wind-force, improve the 0 rate of heat dissipation effect.

Further, the heat dissipation tube 220 is provided with a heat dissipation through groove 222, and the other end of the circuit board 320 is inserted into the heat dissipation through groove 222, so that the other end of the circuit board 320 is fixed in the lamp base 100. Further, the heat dissipation pipe 220 is provided with two heat dissipation through holes 223, and the heat dissipation through holes 223 are symmetrically arranged with the heat dissipation through groove 222 as an axis. By disposing the heat dissipating through groove 222 in the heat dissipating tube 220, the other end of the circuit board 320 can be accommodated in the heat dissipating tube 220, so that the heat of the circuit board 320 can be more quickly transferred to the heat dissipating tube 220, thereby dissipating the heat of the circuit board 320. Also, by providing the heat dissipation through hole 223 in the heat dissipation pipe 220, heat can be discharged from the heat dissipation through hole 223 like the outside.

Specifically, in another embodiment of the present invention, as shown in fig. 1 to 3, the heat dissipation fan 230 is connected to the supporting column 110 in a matching manner, so that the heat dissipation fan 230 is fixed to the other end of the base, the base upper cover 130 is provided with an air vent 131, the air vent 131 is located at the top of the heat dissipation fan 230, and the heat dissipation fan 230 is screwed to the supporting column 110 in a matching manner, so that the heat dissipation fan 230 can be stably installed on the supporting plate 120, and a worker can conveniently detach and install the heat dissipation fan 230, and replace and clean the heat dissipation fan 230 in time.

Specifically, in another embodiment of the present invention, as shown in fig. 1 to 3, the LED lamp housing 310 and the connecting pipe 140 are sleeved by a connecting member 150, a limiting ring 312 is disposed at the bottom end of the LED lamp housing 310, a plurality of limiting blocks 151 are disposed at the top end of the connecting member 150, the limiting blocks 151 and the limiting rings 312 are matched with each other for limiting, the connecting member 150 is disposed on the connecting pipe 140, the size of the connecting member 150 is adjusted according to the user requirement, so that housings with different sizes can be installed in the connecting pipe 140, and the connecting member 150 is matched with the installation of the LED lamp housing 310, so that the connecting pipe 140 can be sleeved with LED lamp housings 310 with different models.

The present invention also provides a lamp circuit, as shown in fig. 5, including: a power input circuit 400, a light emitting circuit 500 and a drive control circuit 600.

Power input circuit 400 includes power connection end VCC, first resistance R1, first electric capacity C1, second electric capacity C2 and first diode D1, first electric capacity C1 one end with first diode D1's one end with power connection end VCC connects, first electric capacity C1's the other end with first diode D1's other end ground connection, first resistance R1 with second electric capacity C2 establishes ties, first resistance R1 with power connection end VCC connects, second electric capacity C2 ground connection plays filtering, anti-jamming effect from this, power input circuit 400 is used for the car lamp circuit power supply. The light emitting circuit 500 includes at least one light emitting diode connected to the power input circuit 400.

The driving control circuit 600 includes an LED lamp main control chip U1, a second diode D2, a first inductor L1, and a second resistor R2. LED lamp main control chip U1 with power input circuit 400 is connected, the fourth pin of LED lamp main control chip U1 with the one end of second diode D2 with the one end of first inductance L1 is connected, second diode D2's other end ground connection, the other end of first inductance L1 with emitting diode connects, the one end of second resistance R2 with the fifth pin of LED lamp main control chip U1 is connected, the other end ground connection of second resistance R2. In this embodiment, the number of the light emitting diodes is two, and the light emitting diodes include a first light emitting diode D3 and a second light emitting diode D4, one end of the first light emitting diode D1 and one end of the second light emitting diode D4 are connected to the power connection terminal VCC, and the other end of the first light emitting diode D1 and the other end of the second light emitting diode D4 are connected to the other end of the first inductor L1. The LED lamp main control chip U1 is internally integrated with a temperature control setting.

The second resistor R2 is a current sampling resistor, feeds a current signal back to the LED lamp main control chip U1 in real time, and the LED lamp main control chip U1 drives an output LED in a constant current mode in a closed loop constant current mode of a fixed turn-off time mode and an average current mode. When the power tube integrated in the LED lamp main control chip U1 is turned on, the input current passes through the first light emitting diode D3, the second light emitting diode D4, the first inductor L1 and the second resistor R2.

When the temperature of the circuit board 320 is close to 115-120 ℃, the voltage of the second resistor R2 reaches the reference threshold of the error amplifier inside the LED lamp main control chip U1, and the power tube inside the LED lamp main control chip U1 starts to be turned off. During the turn-off of the power tube, the current of the first inductor L1 flows through the freewheeling second diode D2, and the first light emitting diode D3 and the second light emitting diode D4 are discharged. After the fixed turn-off time in the LED lamp main control chip U1, the power tube starts to be conducted again, and the processes are repeated, so that the peak current of the output of the light emitting diode is adjusted in a closed loop, the purposes of constant current output and temperature control are achieved, the purpose of reducing the temperature of the whole plate is achieved, electronic components are protected better, the service life of the components is prolonged, and the temperature control is achieved.

Further, the model number of the LED lamp main control chip U1 is preferably TP8025A or other similar chips.

A lamp circuit board 320, as shown in FIG. 4, includes the lamp circuit.

Specifically, in another embodiment of the present invention, as shown in fig. 4, the thickness of the circuit board 320 is 1.0mm, and the circuit board 320 is arranged in a shape of "pi". The circuit board 320 is arranged in a shape of 'pi', so that the car lamp with small volume is easier to mount.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a high-efficient heat dissipation type car light which characterized in that includes:

2. The high-efficiency heat dissipation type car lamp according to claim 1, wherein the heat dissipation tube is provided with a first abdicating notch, one end of the heat dissipation fin close to the heat dissipation fan is provided with a second abdicating notch, and the first abdicating notch and the second abdicating notch are both used for cooperating with the heat dissipation fan.

3. The vehicle lamp of claim 2, wherein the heat pipe has a heat dissipating channel, and the other end of the circuit board is inserted into the heat dissipating channel, so that the other end of the circuit board is fixed in the base of the vehicle lamp.

4. The vehicle lamp of claim 3, wherein the heat pipe has two heat dissipating through holes, and the heat dissipating through holes are symmetrically arranged around the heat dissipating through groove.

5. The high-efficiency heat dissipation type vehicle lamp according to any one of claims 1 to 4, wherein the heat dissipation fan is connected with the support column in a matching manner, so that the heat dissipation fan is fixed at the other end of the base, the base upper cover is provided with a vent, and the vent is located at the top of the heat dissipation fan.

6. The high-efficiency heat dissipation type vehicle lamp according to any one of claims 1-4, wherein the LED lamp housing is sleeved with the connecting pipe through a connecting piece, a limiting ring is arranged at the bottom end of the LED lamp housing, a plurality of limiting blocks are arranged at the top end of the connecting piece, and the limiting blocks are matched with the limiting ring for limiting.

7. A vehicular lamp circuit, comprising:

the power input circuit comprises a power connection end, a first resistor, a first capacitor, a second capacitor and a first diode, wherein one end of the first capacitor and one end of the first diode are connected with the power connection end, the other end of the first capacitor and the other end of the first diode are grounded, the first resistor and the second capacitor are connected in series, the first resistor is connected with the power connection end, the second capacitor is grounded, and the power input circuit is used for supplying power for the car lamp circuit; the light-emitting circuit comprises at least one light-emitting diode, and the light-emitting diode is connected with the power input circuit; the LED lamp driving circuit comprises an LED lamp main control chip, a second diode, a first inductor and a second resistor, wherein the LED lamp main control chip is connected with the power input circuit, the LED lamp main control chip is also connected with one end of the second diode and one end of the first inductor, the other end of the second diode is grounded, the other end of the first inductor is connected with the light emitting diode, one end of the second resistor is connected with the LED lamp main control chip, and the other end of the second resistor is grounded.

8. A lamp circuit board comprising the lamp circuit of claim 7.

9. The lamp circuit board of claim 8, wherein the thickness of the circuit board is 1.0 mm.

10. The lamp circuit board of claim 8, wherein the circuit board is arranged in a "pi" shape.