CN210511496U - Automobile lamp - Google Patents
Automobile lamp Download PDFInfo
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- CN210511496U CN210511496U CN201921725199.9U CN201921725199U CN210511496U CN 210511496 U CN210511496 U CN 210511496U CN 201921725199 U CN201921725199 U CN 201921725199U CN 210511496 U CN210511496 U CN 210511496U
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- circuit board
- automobile lamp
- heat
- control circuit
- fan
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Abstract
The utility model discloses an automobile lamp, including the automobile lamp casing, the control circuit board of setting in the automobile lamp casing, the LED of setting on control circuit board sends out optical module, the lid behind the automobile lamp casing of setting at automobile lamp casing rear end, the detachable radiator fan of setting between automobile lamp casing and automobile lamp casing back lid, circuit board and power input line for the connection of setting on the inboard bottom in automobile lamp casing rear end, compare in car lamp before, the automobile lamp casing of integration has been adopted, make not have the gap on the automobile lamp casing, thereby heat dispersion has been improved, in addition, through the mode that adopts automobile lamp casing and automobile lamp enclosing cover threaded connection, both made things convenient for the change and the fixing to inside radiator fan, the outward appearance is better in addition, and the radiating effect is also better, the structure is durable more durable. In addition, heat can be effectively conducted out through the radiating pipe, and therefore the overall radiating efficiency is improved.
Description
Technical Field
The utility model relates to the field of lamps and lanterns, in particular to automobile lamp.
Background
Compared with a fan, the service life of the LED light-emitting module part of the existing automobile lamp is longer, the fan part is easy to damage due to dust deposition or other reasons, and the LED light-emitting module part is easy to damage due to lack of heat dissipation once damaged. Therefore, if the fan can be replaced, the service life of the automobile lamp can be greatly prolonged, and better user experience is brought to a user.
On the other hand, from the practical point of view, most people do not know the relevant knowledge in the automobile field, and if the fan can be replaced, the customer does not know whether the fan is broken or the whole lamp is broken, and the judgment cannot be easily carried out, so that the design has a good effect hardly. It is therefore desirable to enable a customer to easily detect that a vehicle lamp has failed because the fan is broken and to replace the fan in a timely manner, thereby saving the customer considerable maintenance costs, as well as time costs.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can tear open and trade the fan and can inform the user that the fan is the car lamp of fan damage.
The utility model provides an automobile lamp, which comprises an automobile lamp shell, a LED light-emitting module arranged on the automobile lamp shell, a control circuit board arranged in the automobile lamp shell, and a cooling fan arranged at the rear end of the automobile lamp shell; a circuit board for connection is arranged at the bottom of the inner side of the rear end of the automobile lamp shell, a connecting hole matched with the control circuit board is formed in the middle of the circuit board for connection, and the tail end of the control circuit board extends into the connecting hole so that the circuit board for connection is electrically connected with the control circuit board; the back surface of the connecting circuit board is also provided with an electric contact pin, the heat radiation fan is provided with an electric jack matched with the electric contact pin, and the electric contact pin is inserted into the electric jack so that the heat radiation fan is electrically connected with the connecting circuit board; and a wire outlet hole is formed in the side surface of the rear end of the automobile lamp shell, and a power supply input wire is inserted into the automobile lamp shell from the wire outlet hole and is electrically connected with the circuit board for connection.
Preferably, the rear end cover of the automobile lamp shell is provided with a rear cover of the automobile lamp shell, and the top of the rear cover of the automobile lamp shell is provided with a heat radiation hole opposite to the heat radiation fan.
Preferably, the automobile lamp shell comprises a heat dissipation seat positioned at the rear end and a heat conduction column arranged at the front end of the heat dissipation seat, the circuit board for connection is arranged in the heat dissipation seat, an insertion slot which penetrates through the heat dissipation seat and is used for inserting a control circuit board is vertically arranged in the heat conduction column, the control circuit board is inserted into the insertion slot and is in contact with the heat conduction column, and the tail end of the control circuit board is inserted into a connection hole of the circuit board for connection; the automobile lamp shell rear cover is arranged on the heat radiating seat, the heat radiating fan is arranged on the heat radiating seat, the automobile lamp shell rear cover is connected with the heat radiating seat to fix the heat radiating fan on the heat radiating seat, the side wall of the heat radiating seat is annularly provided with heat radiating fins, ventilating and heat radiating spaces are arranged at vertical intervals among the heat radiating fins, and the heat radiating fan blows heat out of the connecting circuit board and the heat radiating seat.
Preferably, the LED light emitting module is disposed on the control circuit board, the heat conducting pillar is provided with a light emitting hole, and the LED light emitting module protrudes from the light emitting hole to emit light.
Preferably, be provided with the cooling tube on the control circuit board, the cooling tube first half is sharp form, follows the control circuit board front end is extended backward all the time, the circle ring shape is buckled into to the cooling tube latter half, runs through in the radiating seat, with the radiating seat fully contacts.
Preferably, a sampling circuit and a control chip are arranged on the control circuit board, the sampling circuit is connected with the control chip, and the control chip is respectively connected with the LED light-emitting module and the cooling fan; the sampling circuit comprises a thermistor and a sampling triode which are used for obtaining the temperature information of the shell of the automobile lamp; wherein the collecting electrode of the sampling triode is connected with the CSN pin of the control chip, the emitting electrode is connected with the thermistor, the base electrode is connected with the power supply, the control chip DRV is connected with the MOS tube Q1, the MOS tube Q1 is connected with the LED light-emitting module and the cooling fan, the current output by the DRV pin is controlled by collecting the current information output by the collecting electrode, thereby controlling the working power of the subsequent circuit and realizing the function of reducing the luminous power at high temperature.
The utility model discloses an automobile lamp's beneficial effect does:
the utility model discloses an automobile lamp includes the automobile lamp casing, the control circuit board of setting in the automobile lamp casing, the LED of setting on control circuit board sends out optical module, the lid behind the automobile lamp casing of setting at automobile lamp casing rear end, the detachable radiator fan of setting between automobile lamp casing and automobile lamp casing back lid, circuit board and power input line for the connection of setting on the inboard bottom in automobile lamp casing rear end, compare in the automobile lamp before, the automobile lamp casing of integration has been adopted, make and not have the gap on the automobile lamp casing, thereby heat dispersion has been improved.
A connecting hole matched with the control circuit board is formed in the middle of the connecting circuit board, and the tail end of the control circuit board extends into the connecting hole so that the connecting circuit board is electrically connected with the control circuit board; the back of the connecting circuit board is also provided with an electric contact pin, the heat radiation fan is provided with an electric jack matched with the electric contact pin, and the electric contact pin is inserted into the electric jack so that the heat radiation fan is electrically connected with the connecting circuit board; the electric connection mode makes the installation of the heat radiation fan more convenient.
In addition, through adopting the mode of car lamp casing and car lamp enclosing cover threaded connection, both made things convenient for the change and the fixed of inside radiator fan, the outward appearance is better in addition, and the radiating effect is also better, and the structure is durable more durable. In addition, the heat of the lamp beads can be effectively led out by using the radiating pipe, so that the overall radiating efficiency is improved.
Drawings
FIG. 1 is a perspective view of an automotive lamp according to the present invention;
FIG. 2 is an exploded view of the automotive lamp of the present invention;
FIG. 3 is a half sectional view of an automotive lamp of the present invention;
FIG. 4 is a rear view of an automotive lamp housing of the automotive lamp of the present invention;
fig. 5 is a bottom view of the heat dissipation fan of the automotive lamp of the present invention;
fig. 6 is a schematic circuit diagram of the automotive lamp of the present invention.
Reference numbers in the figures: 1. automobile lamp shell, 2, connecting circuit board, 3, control circuit board, 4, cooling fan, 5, automobile lamp shell rear cover, 6, power input line, 11, wire outlet, 12, limiting groove, 21, electric contact pin, 22, connecting hole, 31, cooling pipe, 41, limiting protrusion, 42 and electric contact hole
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 6, an embodiment of the automotive lamp of the present invention is proposed:
the utility model provides an automobile lamp, including automobile lamp casing 1, the control circuit board 3 of setting in automobile lamp casing 1, the LED of setting on control circuit board sends out optical module 7, the automobile lamp casing back cover 5 of setting at automobile lamp casing 1 rear end, the detachable radiator fan 4 of setting between automobile lamp casing 1 and automobile lamp casing back cover 5, set up circuit board 2 for the connection on the inboard bottom in automobile lamp casing 1 rear end and install the power input line 6 on automobile lamp casing 1.
The automobile lamp shell 1 is formed by integral molding and comprises a heat dissipation seat positioned at the rear end and a heat conduction column arranged at the front end of the heat dissipation seat, and the circuit board 2 for connection is arranged in the heat dissipation seat. The vertical slot that is used for inserting control circuit board 3 that runs through the radiating seat that is equipped with in the heat conduction post, control circuit board 3 inserts in the slot, fully contacts with the heat conduction post. The LED light-emitting module 7 is arranged on the control circuit board 3, a light-emitting hole is formed in the heat conduction column, and the LED light-emitting module extends out of the light-emitting hole to emit light. The heat-conducting column can rapidly guide out heat on the control circuit board 3, and the heat is dissipated by the heat-conducting column and the heat dissipation seat.
The middle of the connecting circuit board 2 is provided with a connecting hole 22 matched with the control circuit board, the inner side of the connecting hole 22 is provided with a connecting hole wiring point, and the tail end of the control circuit board 3 is provided with a control circuit board wiring point. During installation, the control circuit board 3 is inserted into the slot, then the connecting circuit board 2 is installed in the heat dissipation seat, the tail end of the control circuit board 3 extends into the connecting hole 22, and at the moment, the connecting hole wiring point is in contact with the control circuit board wiring point, so that the connecting circuit board 2 is electrically connected with the control circuit board 3.
The back of the connecting circuit board 2 is also provided with two electrical contact pins 21, the two electrical contact pins 21 are respectively an electrical contact pin anode and an electrical contact pin cathode, the heat dissipation fan 4 is provided with electrical sockets 42 adapted to the electrical contact pins, the two electrical sockets 42 are also two, the two electrical sockets 42 are respectively provided with a heat dissipation fan anode and a heat dissipation fan cathode, and explanatory characters "+" and "-" corresponding to the heat dissipation fan anode and cathode in the electrical sockets 42 are written beside the two electrical sockets 42 on the back of the heat dissipation fan 4. The heat dissipation fan 4 is electrically connected to the connection circuit board 2 by inserting the electrical contact pins 21 into the electrical sockets 42 to electrically connect the positive and negative poles of the heat dissipation fan in the electrical sockets 42.
The side surface of the rear end of the automobile lamp shell 1 is provided with a wire outlet hole 11, and the power input wire 6 is inserted into the automobile lamp shell 1 from the wire outlet hole 11 and is electrically connected with the connecting circuit board 2.
The top of the rear cover 5 of the automobile lamp shell is provided with a heat radiation hole opposite to the heat radiation fan. The side wall of the heat radiating seat is arranged in a surrounding mode to form heat radiating fins, ventilating and heat radiating spaces are vertically arranged among the heat radiating fins at intervals, and the heat radiating fan 4 blows out heat on the connecting circuit board 2 and the heat radiating seat.
The control circuit board 3 is provided with the radiating pipe 31, the front half part of the radiating pipe 31 is in a straight line shape and extends from the front end of the control circuit board 3 backwards all the time, and the rear half part of the radiating pipe 31 is bent into a circular ring shape and penetrates through the radiating seat to be fully contacted with the radiating seat, so that the radiating efficiency is improved.
The control circuit board 3 is provided with a sampling circuit and a control chip, the sampling circuit is connected with the control chip, and the control chip is respectively connected with the LED light-emitting module and the cooling fan 4. The control circuit board 3 is provided with the radiating pipe 31, the front half part of the radiating pipe 31 is linear and extends from the front end of the control circuit board 3 backwards all the time, the rear half part of the radiating pipe 31 is bent into a circular ring shape, and the radiating pipe contacts with the bottom of the circuit board 2 for connection, so that the radiating effect can be effectively enhanced.
As shown in fig. 6, the sampling circuit includes resistors R1, R2, R3, R4, R5, a thermistor NTC, a diode D2, a capacitor C1, and a sampling transistor V1, wherein a collector of the sampling transistor is connected to a CSN pin of the control chip, an emitter of the sampling transistor is connected to the thermistor NTC and R5, and then connected to the power VCC through a resistor R1 and a diode D2, and a base of the sampling transistor is connected to the power VCC after being connected to a resistor R3.
The DRV pin of the control chip is connected with the MOS tube Q1, the MOS tube Q1 is connected with the LED light-emitting module and the cooling fan 4, the control chip controls the magnitude of the current output by the DRV pin by collecting the current information input by the CSN pin, so that the working power of a subsequent circuit is controlled, and the function of reducing the light-emitting power at high temperature is realized.
When the temperature-reducing thermistor is used, when the temperature rises, the working power of a subsequent working circuit can be reduced through the thermistor NTC, so that heat dissipation is reduced, the temperature is reduced, and normal operation is recovered when the temperature is reduced to a certain degree. If the heat dissipation fan 4 is damaged, the temperature of the heat dissipation fan 4 is not reduced, so that the automobile lamp can be kept in a slightly bright brightness state with low working power for a long time, and whether the heat dissipation fan 4 is damaged or not can be easily judged.
When the damage of the heat dissipation fan 4 is confirmed, a user only needs to purchase a new heat dissipation fan 4, the heat dissipation fan 4 is mainly made of plastic, no redundant connecting structure is arranged, the price is low, the automobile lamp shell rear cover 5 of the automobile lamp is unscrewed during replacement, then the old heat dissipation fan 4 is taken down, and the automobile lamp shell rear cover 5 is screwed on after the new heat dissipation fan 4 is inserted. The replacement is simple and easy, and for threaded connection, the general user need not the help of operation manual, can be very easy know how to change after seeing the product.
Compare in car lamp before, adopted the car lamp casing 1 of integration for there is not the gap on the car lamp casing 1, thereby improved heat dispersion, in addition, through the mode that adopts car lamp casing 1 and 5 threaded connection of car lamp enclosing cover, both made things convenient for the change and the fixing of inside radiator fan 4, the outward appearance is better in addition, and the radiating effect is also better, and the structure is durable more durable. In addition, the heat generated by the light emission of the LED module can be effectively and quickly LED out by using the radiating pipe 31, so that the overall radiating efficiency is improved.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structural changes made by the contents of the specification and the drawings, or the direct or indirect application in other related technical fields, are included in the same way in the protection scope of the present invention.
Claims (6)
1. An automobile lamp comprises an automobile lamp shell, an LED light-emitting module arranged on the automobile lamp shell, and a control circuit board arranged in the automobile lamp shell, and is characterized by further comprising a cooling fan arranged at the rear end of the automobile lamp shell; a circuit board for connection is arranged at the bottom of the inner side of the rear end of the automobile lamp shell, a connecting hole matched with the control circuit board is formed in the middle of the circuit board for connection, and the tail end of the control circuit board extends into the connecting hole so that the circuit board for connection is electrically connected with the control circuit board; the back surface of the connecting circuit board is also provided with an electric contact pin, the heat radiation fan is provided with an electric jack matched with the electric contact pin, and the electric contact pin is inserted into the electric jack so that the heat radiation fan is electrically connected with the connecting circuit board; and a wire outlet hole is formed in the side surface of the rear end of the automobile lamp shell, and a power supply input wire is inserted into the automobile lamp shell from the wire outlet hole and is electrically connected with the circuit board for connection.
2. The automotive lamp according to claim 1, wherein an automotive lamp housing rear cover is provided at the automotive lamp housing rear end cover, and a heat radiation hole is provided on a top of the automotive lamp housing rear cover opposite to the heat radiation fan.
3. The automotive lamp according to claim 2, wherein the automotive lamp housing comprises a heat sink at a rear end and a heat-conducting post disposed at a front end of the heat sink, the circuit board for connection is disposed in the heat sink, a slot for inserting a control circuit board is vertically disposed in the heat-conducting post, the slot extends through the heat sink, the control circuit board is inserted into the slot and contacts with the heat-conducting post, and a distal end of the control circuit board is inserted into a connection hole of the circuit board for connection; the automobile lamp shell rear cover is arranged on the heat radiating seat, the heat radiating fan is arranged on the heat radiating seat, the automobile lamp shell rear cover is connected with the heat radiating seat to fix the heat radiating fan on the heat radiating seat, the side wall of the heat radiating seat is annularly provided with heat radiating fins, ventilating and heat radiating spaces are arranged at vertical intervals among the heat radiating fins, and the heat radiating fan blows heat out of the connecting circuit board and the heat radiating seat.
4. The automotive lamp of claim 3, wherein the LED light module is disposed on the control circuit board, and the heat-conducting post is provided with a light-emitting hole, and the LED light module projects from the light-emitting hole to emit light.
5. The automotive lamp of claim 3, wherein the control circuit board is provided with a heat dissipating tube, the front half of the heat dissipating tube is linear and extends from the front end of the control circuit board to the rear, and the rear half of the heat dissipating tube is bent into a circular ring shape and penetrates through the heat dissipating seat to be in full contact with the heat dissipating seat.
6. The automotive lamp according to any one of claims 1 to 5, wherein a sampling circuit and a control chip are arranged on the control circuit board, the sampling circuit is connected with the control chip, and the control chip is respectively connected with the LED light-emitting module and the heat dissipation fan; the sampling circuit comprises a thermistor and a sampling triode which are used for obtaining the temperature information of the shell of the automobile lamp; wherein the collecting electrode of the sampling triode is connected with the CSN pin of the control chip, the emitting electrode is connected with the thermistor, the base electrode is connected with the power supply, the control chip DRV is connected with the MOS tube Q1, the MOS tube Q1 is connected with the LED light-emitting module and the cooling fan, the current output by the DRV pin is controlled by collecting the current information output by the collecting electrode, thereby controlling the working power of the subsequent circuit and realizing the function of reducing the luminous power at high temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921725199.9U CN210511496U (en) | 2019-10-15 | 2019-10-15 | Automobile lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921725199.9U CN210511496U (en) | 2019-10-15 | 2019-10-15 | Automobile lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210511496U true CN210511496U (en) | 2020-05-12 |
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ID=70572889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921725199.9U Active CN210511496U (en) | 2019-10-15 | 2019-10-15 | Automobile lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210511496U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538998A (en) * | 2018-12-29 | 2019-03-29 | 广州纽威光电科技有限公司 | A kind of LED light |
-
2019
- 2019-10-15 CN CN201921725199.9U patent/CN210511496U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538998A (en) * | 2018-12-29 | 2019-03-29 | 广州纽威光电科技有限公司 | A kind of LED light |
| CN109538998B (en) * | 2018-12-29 | 2024-02-06 | 广州纽威光电科技有限公司 | LED lamp |
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