CN210740289U - A LED headlight bulb for car just has daytime running light function - Google Patents
A LED headlight bulb for car just has daytime running light function Download PDFInfo
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- CN210740289U CN210740289U CN201921896309.8U CN201921896309U CN210740289U CN 210740289 U CN210740289 U CN 210740289U CN 201921896309 U CN201921896309 U CN 201921896309U CN 210740289 U CN210740289 U CN 210740289U
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Abstract
The utility model provides a LED headlight bulb with daytime running light function for an automobile, which comprises a first LED chip for dipped headlight luminescence or high beam luminescence, a second LED chip for daytime running light luminescence, a lamp post, a driving power circuit board, a heat radiation fin, a fan cover and a power line; a first LED chip and a second LED chip are arranged on the copper substrate, two electrodes of the first LED chip are respectively and electrically connected with a No. 1 output end electrode and a No. 3 output end electrode of the driving power supply circuit board, and two electrodes of the second LED chip are respectively and electrically connected with a No. 1 output end electrode and a No. 2 output end electrode of the driving power supply circuit board; the relay controls the first LED chip to emit light when the input voltage of the two-pin plug is 12V, and controls the second LED chip to emit light when the input voltage of the two-pin plug is 5-9V; therefore, the LED headlight bulb can be used as a dipped headlight or a high beam and can also be used as a daytime running light.
Description
Technical Field
The utility model belongs to the technical field of the automobile spare and accessory part technique and specifically relates to a LED headlight bulb that is used for car and has daytime running light function is related to.
Background
Automotive headlamp assemblies typically include low beam, high beam, turn signal, fog light, daytime running light, and a width light, among others. The automobile headlamp assembly specifically comprises the lamps, and the lamps can be selectively arranged and combined according to the principles of different configurations, different models and the like. The dipped headlight, the high beam, the steering light, the fog light, the daytime running light, the width indicating light and other lights are mutually independent set of light system under normal conditions, work independently respectively, and each light comprises a corresponding bulb, a reflecting cup and other structures.
Day driving lamp, also known as daytime driving lamp, for daytime to the place ahead suggestion vehicle exists the setting, installs the both sides at the vehicle front end, and its effect is: the vehicle is easier to be identified in daytime, and the effect of the vehicle is not to enable a driver to clearly see the road surface, but to enable others to know that a vehicle is driven, so that the lamp is not an illuminating lamp but a signal lamp. The daytime running light is a special light which can be automatically turned ON when the automobile is powered ON (in an ON state), and the daytime running light is automatically turned off if a driver turns ON other common vehicle lights in the dark.
With the technological advance of the headlight bulbs (high beam and low beam) in automobiles, halogen headlight bulbs, xenon headlight bulbs and the most advanced LED headlight bulbs are developed. The LED headlight bulb generally includes an LED chip for emitting light, a long column-shaped lamp post for mounting and fixing the LED chip, a finned heat sink for dissipating heat, and a fan for dissipating heat. The light-emitting principle of the LED lamp determines that the LED lamp needs to be forcibly, timely and well radiated, and the radiating problem is a main factor influencing the service life of the LED lamp. The LED chip is sensitive to temperature change, and the heat dissipation problem not only can influence the service life of the LED chip, but also can influence the luminous brightness of the LED chip. Therefore, the heat dissipation design of the LED lamp must be designed from the LED chip to the whole LED headlamp bulb, and each link needs to be paid attention.
The LED chip for emitting light in the LED lamp is a semiconductor device with sensitive characteristics and has negative temperature characteristics, so that it needs to be stably operated and protected during the application process, thereby creating a driving concept. The LED chip has nearly strict requirements on a driving power supply, and the LED can be directly connected with 220V alternating current commercial power unlike a common incandescent bulb. The LED driving power supply is a power converter that converts a power supply into a specific voltage and current to drive the LED chip to emit light.
Therefore, how to add a daytime running light function to an LED headlamp bulb for an automobile so that the LED headlamp bulb can be used as both a dipped headlight or a high beam and a daytime running light is a technical problem that needs to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a LED headlight bulb that is used for the car and has daytime running light function.
For solving the above technical problem, the utility model provides a technical scheme does:
an LED headlamp bulb with a daytime running light function for an automobile comprises a first LED chip for dipped headlight light emission or high beam light emission, a second LED chip for daytime running light emission, a long columnar lamp post, a driving power supply circuit board, a heat dissipation fin for heat dissipation, a fan cover for covering and protecting the fan, and a power line for electrically connecting with a vehicle-mounted battery, wherein the tail end of the power line is provided with a two-pin plug;
the lamp post comprises a copper substrate, a left half lamp post and a right half lamp post, wherein the copper substrate is used for mounting and fixing a first LED chip and conducting and radiating, the copper substrate is a double-sided board, and the copper substrate comprises a first circuit layer, a first insulating layer, a copper base layer, a second insulating layer and a second circuit layer which are sequentially stacked;
two input end electrodes of the driving power supply circuit board are electrically connected with two pins of the two-pin plug respectively through wires;
at least one first LED chip is arranged on each of a first circuit layer and a second circuit layer in the copper substrate, and two electrodes of each first LED chip are electrically connected with a No. 1 output end electrode and a No. 3 output end electrode of the driving power supply circuit board respectively;
at least one second LED chip is arranged on each of a first circuit layer and a second circuit layer in the copper substrate, and two electrodes of each second LED chip are electrically connected with a No. 1 output end electrode and a No. 2 output end electrode of the driving power supply circuit board respectively;
the driving power supply circuit board comprises a relay, the contact type of the relay is a conversion contact type, a first stationary contact of the relay is electrically connected with the No. 3 output end electrode, a second stationary contact of the relay is electrically connected with the No. 2 output end electrode, the relay is used for controlling the movable contact and the first stationary contact in the relay to be closed when the input voltage of the two-pin plug is 12V, so that the No. 1 output end electrode and the No. 3 output end electrode of the driving power supply circuit board supply power to the first LED chip, and the relay is used for controlling the movable contact and the second stationary contact in the relay to be closed when the input voltage of the two-pin plug is 5-9V, so that the No. 1 output end electrode and the No. 2 output end electrode of the driving power supply circuit board supply power to the second LED chip.
Preferably, the heat dissipation fins are provided with axial through holes, and the driving power supply circuit board is arranged in the hole cavity of the axial through holes in the heat dissipation fins.
Preferably, the direct current centrifugal fan is used for exhausting and radiating air for a lamp cavity, a first LED chip and a second LED chip in the automobile headlamp assembly;
the LED headlamp bulb is fixedly inserted into the mounting through hole in the rear shell of the automobile headlamp assembly;
the direct-current centrifugal fan is in a flat round box shape, the direct-current centrifugal fan is used for detachably covering the mounting through hole from the outer side of the mounting through hole so as to extract hot air in the automobile headlamp assembly and prevent dust from entering the mounting through hole, the direct-current centrifugal fan is connected in the mounting through hole in the rear shell in a buckling mode, and an air inlet of the direct-current centrifugal fan is located in the mounting through hole and is communicated with the lamp cavity so as to be used for extracting air and dissipating heat of the automobile headlamp assembly;
two electrodes of a direct current motor in the direct current centrifugal fan are respectively and electrically connected with two pins of the two-pin plug through leads so as to enable a switch of the direct current centrifugal fan to be controlled by a key switch, and the direct current centrifugal fan can be started when an automobile is electrified.
The direct current centrifugal fan is electrically connected with the driving power supply circuit board in parallel.
Preferably, the left half lamp post, the copper substrate and the right half lamp post are overlapped to be spliced into a complete lamp post, the copper substrate is clamped between the left half lamp post and the right half lamp post, bolt holes are formed in the tops of the left half lamp post, the copper substrate and the right half lamp post, and the left half lamp post, the copper substrate and the right half lamp post are connected through bolts inserted into the bolt holes.
Preferably, the lamp post formed by fastening and overlapping the left half lamp post, the copper substrate and the right half lamp post is inserted and fixed in the top opening of the axial through hole in the heat dissipation fin, so that the left half lamp post and the right half lamp post are in direct contact with the heat dissipation fin to realize heat conduction;
the fan is arranged at the bottom opening of the axial through hole in the radiating fin;
the fan cover wraps the fan, the fan cover is arranged at the bottom ends of the radiating fins, and radiating through holes are formed in the side wall and the bottom wall of the fan cover.
The utility model provides a LED headlight bulb for an automobile and with a daytime running light function, which comprises a first LED chip for dipped headlight luminescence or high beam luminescence, a second LED chip for daytime running light luminescence, a long columnar lamp post, a driving power supply circuit board, a heat dissipation fin for heat dissipation, a fan cover for covering and protecting the fan, and a power line electrically connected with a vehicle-mounted battery, wherein the tail end of the power line is provided with a two-pin plug;
at least one first LED chip is arranged on each of a first circuit layer and a second circuit layer in the copper substrate, and two electrodes of each first LED chip are electrically connected with a No. 1 output end electrode and a No. 3 output end electrode of the driving power supply circuit board respectively;
at least one second LED chip is arranged on each of a first circuit layer and a second circuit layer in the copper substrate, and two electrodes of each second LED chip are electrically connected with a No. 1 output end electrode and a No. 2 output end electrode of the driving power supply circuit board respectively;
the driving power supply circuit board comprises a relay, the contact type of the relay is a conversion contact type, a first stationary contact of the relay is electrically connected with the No. 3 output end electrode, a second stationary contact of the relay is electrically connected with the No. 2 output end electrode, the relay is used for controlling the movable contact and the first stationary contact in the relay to be closed when the input voltage of the two-pin plug is 12V, so that the No. 1 output end electrode and the No. 3 output end electrode of the driving power supply circuit board supply power to the first LED chip, and the relay is used for controlling the movable contact and the second stationary contact in the relay to be closed when the input voltage of the two-pin plug is 5-9V, so that the No. 1 output end electrode and the No. 2 output end electrode of the driving power supply circuit board supply power to the second LED chip;
the first LED chip used for the low beam light or the high beam light to emit light is normally controlled to be switched by a light switch rod below an automobile steering wheel;
the second LED chip used for the daytime running light to emit light is controlled by a key switch on the automobile, when the automobile is electrified, the second LED chip can emit light no matter the engine is started or not, and when the first LED chip is turned on to emit light, the second LED chip can automatically cut off the power and stop emitting light;
so increased the daytime running light function for the LED headlight bulb for the car for this LED headlight bulb can be as passing lamp or far-reaching headlamp, can regard as the daytime running light again, has embodied a lamp multi-functionally, and two lamps of a two pin plug control have simplified the structure of car headlight assembly, and original two way circuits have become all the way, have reduced the car cost, to the car that does not have the daytime running light, need not to purchase the daytime running light in addition again and oneself waste time and energy and install.
Drawings
Fig. 1 is a schematic perspective view of an LED headlight bulb with a daytime running light function for an automobile according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of another angle in fig. 1.
In the figure: the LED lamp comprises a first LED chip 1, a second LED chip 2, a lamp post 3, heat dissipation fins 4, a fan cover 5, a power line 6, a two-pin plug 7 and a direct-current centrifugal fan 8.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "axial," "radial," "longitudinal," "transverse," "length," "width," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientation or positional relationship indicated in the drawings and are thus only for convenience of description and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Referring to fig. 1 to 2, fig. 1 is a schematic perspective view of an LED headlight bulb with a daytime running light function for an automobile according to an embodiment of the present invention; fig. 2 is a schematic perspective view of another angle in fig. 1.
The application provides an LED headlamp bulb with a daytime running light function for an automobile, which comprises a first LED chip 1 for low beam light emission or high beam light emission, a second LED chip 2 for daytime running light emission, a long columnar lamp post 3, a driving power supply circuit board, a heat dissipation fin 4 for heat dissipation, a fan cover 5 for covering and protecting the fan, and a power line 6 for electric connection with a vehicle-mounted battery, wherein the tail end of the power line 6 is provided with a two-pin plug 7;
the lamp post 3 comprises a copper substrate, a left half lamp post and a right half lamp post, wherein the copper substrate is used for mounting and fixing the first LED chip 1, and conducting and radiating, and is a double-sided board, and the copper substrate comprises a first circuit layer, a first insulating layer, a copper base layer, a second insulating layer and a second circuit layer which are sequentially stacked;
two input end electrodes of the driving power supply circuit board are respectively and electrically connected with two pins of the two-pin plug 7 through wires;
at least one first LED chip 1 is respectively arranged on a first circuit layer and a second circuit layer in the copper substrate, and two electrodes of the first LED chip 1 are respectively electrically connected with a No. 1 output end electrode and a No. 3 output end electrode of the driving power supply circuit board;
at least one second LED chip 2 is respectively arranged on the first circuit layer and the second circuit layer in the copper substrate, and two electrodes of the second LED chip 2 are respectively electrically connected with the No. 1 output end electrode and the No. 2 output end electrode of the driving power supply circuit board;
the driving power supply circuit board comprises a relay, the contact type of the relay is a conversion type contact type, a first stationary contact of the relay is electrically connected with the No. 3 output end electrode, a second stationary contact of the relay is electrically connected with the No. 2 output end electrode, the relay is used for controlling the movable contact and the first stationary contact in the relay to be closed when the input voltage of the two-pin plug 7 is 12V, so that the No. 1 output end electrode and the No. 3 output end electrode of the driving power supply circuit board supply power to the first LED chip 1, and the relay is used for controlling the movable contact and the second stationary contact in the relay to be closed when the input voltage of the two-pin plug 7 is 5-9V, so that the No. 1 output end electrode and the No. 2 output end electrode of the driving power supply circuit board supply power to the second LED chip 2.
In one embodiment of the present application, the heat sink fins 4 are provided with axial through holes, and the driving power supply circuit board is built in the cavities of the axial through holes in the heat sink fins 4.
In an embodiment of the present application, the LED headlamp bulb further includes a dc centrifugal fan 8 for exhausting and dissipating heat of the lamp cavity, the first LED chip 1, and the second LED chip 2 in the automotive headlamp assembly;
the LED headlamp bulb is fixedly inserted into the mounting through hole in the rear shell of the automobile headlamp assembly;
the direct-current centrifugal fan 8 is in a flat round box shape, the direct-current centrifugal fan 8 is used for detachably covering the mounting through hole from the outer side of the mounting through hole so as to draw out hot air in the automobile headlamp assembly and prevent dust from entering the mounting through hole, the direct-current centrifugal fan 8 is connected in the mounting through hole in the rear shell in a buckling mode, and an air inlet of the direct-current centrifugal fan 8 is located in the mounting through hole and communicated with the lamp cavity so as to be used for air draft and heat dissipation of the automobile headlamp assembly;
two electrodes of a direct current motor in the direct current centrifugal fan 8 are respectively and electrically connected with two pins of the two-pin plug 7 through leads so as to enable the switch of the direct current centrifugal fan 8 to be controlled by a key switch on an automobile, and the direct current centrifugal fan 8 can be started when the automobile is electrified;
the direct current centrifugal fan 8 is electrically connected with the driving power circuit board in parallel.
In an embodiment of the present application, the left half lamp post, the copper substrate, and the right half lamp post are stacked together to form a complete lamp post 3, the copper substrate is sandwiched between the left half lamp post and the right half lamp post, bolt holes are formed in the tops of the left half lamp post, the copper substrate, and the right half lamp post, and the left half lamp post, the copper substrate, and the right half lamp post are bolted by bolts inserted into the bolt holes.
In one embodiment of the present application, the lamp post 3 formed by fastening and stacking the left half lamp post, the copper substrate and the right half lamp post is inserted and fixed in the top opening of the axial through hole in the heat dissipation fin 4, so that the left half lamp post and the right half lamp post are in direct contact with the heat dissipation fin 4 to realize heat conduction;
the fan is arranged at the bottom opening of the axial through hole in the heat radiating fin 4;
the fan is wrapped by the fan cover 5, the fan cover 5 is arranged at the bottom end of the radiating fins 4, and radiating through holes are formed in the side wall and the bottom wall of the fan cover 5.
The drive power supply circuit board in this application is prior art, and this application does not have the restriction to its structure, model etc. adopt in this technical field structure, model etc. commonly used can, and this is no longer repeated here.
The relay is of various types, can be divided into a voltage relay, a current relay, a time relay, a speed relay, a pressure relay and the like according to input quantity, and the relay in the application is the voltage relay.
The utility model provides a LED headlight bulb for car and with daytime running light function, including the luminous first LED chip 1 of dipped headlight or far-reaching headlamp, the luminous second LED chip 2 of daytime running light, long columnar lamp pole 3, drive power supply circuit board, heat radiation fins 4 for heat dissipation, the fan that is used for the heat dissipation, be used for covering and protecting fan cover 5 of fan, be used for the power cord 6 with the on-vehicle battery electricity connection, the end of power cord 6 is provided with two pin plugs 7;
at least one first LED chip 1 is respectively arranged on a first circuit layer and a second circuit layer in the copper substrate, and two electrodes of the first LED chip 1 are respectively electrically connected with a No. 1 output end electrode and a No. 3 output end electrode of the driving power supply circuit board;
at least one second LED chip 2 is respectively arranged on the first circuit layer and the second circuit layer in the copper substrate, and two electrodes of the second LED chip 2 are respectively electrically connected with the No. 1 output end electrode and the No. 2 output end electrode of the driving power supply circuit board;
the driving power supply circuit board comprises a relay, the contact type of the relay is a conversion type contact type, a first stationary contact of the relay is electrically connected with the No. 3 output end electrode, a second stationary contact of the relay is electrically connected with the No. 2 output end electrode, the relay is used for controlling the movable contact and the first stationary contact in the relay to be closed when the input voltage of the two-pin plug 7 is 12V, so that the No. 1 output end electrode and the No. 3 output end electrode of the driving power supply circuit board supply power to the first LED chip 1, and the relay is used for controlling the movable contact and the second stationary contact to be closed when the input voltage of the two-pin plug 7 is 5-9V, so that the No. 1 output end electrode and the No. 2 output end electrode of the driving power supply circuit board supply power to the second LED chip 2;
the first LED chip 1 used for low beam light or high beam light is normally controlled to be switched by a light switch rod below an automobile steering wheel;
the second LED chip 2 used for the daytime running light to emit light is controlled by a key switch on the automobile, when the automobile is electrified, the second LED chip 2 can emit light no matter the engine is started or not, and when the first LED chip 1 is turned on to emit light, the second LED chip 2 can be automatically powered off to stop emitting light;
so increased the daytime running light function for the LED headlight bulb for the car for this LED headlight bulb can be as passing lamp or far-reaching headlamp, can regard as the daytime running light again, has embodied a lamp multi-functionally, and two lamps of two foot plug 7 control have simplified the structure of car headlight assembly, and original two way circuits have become all the way, have reduced the car cost, to the car that does not have the daytime running light, need not to purchase the daytime running light in addition again and oneself waste time and energy and install.
The method and the device not described in detail in the present invention are prior art and will not be described in detail.
The principles and embodiments of the present invention have been explained herein using specific embodiments, which are merely used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (5)
1. An LED headlight bulb with a daytime running light function for an automobile is characterized by comprising a first LED chip for low beam light emission or high beam light emission, a second LED chip for daytime running light emission, a long columnar lamp post, a driving power supply circuit board, heat dissipation fins for heat dissipation, a fan cover for covering and protecting the fan, and a power line electrically connected with a vehicle-mounted battery, wherein the tail end of the power line is provided with a two-pin plug;
the lamp post comprises a copper substrate, a left half lamp post and a right half lamp post, wherein the copper substrate is used for mounting and fixing a first LED chip and conducting and radiating, the copper substrate is a double-sided board, and the copper substrate comprises a first circuit layer, a first insulating layer, a copper base layer, a second insulating layer and a second circuit layer which are sequentially stacked;
two input end electrodes of the driving power supply circuit board are electrically connected with two pins of the two-pin plug respectively through wires;
at least one first LED chip is arranged on each of a first circuit layer and a second circuit layer in the copper substrate, and two electrodes of each first LED chip are electrically connected with a No. 1 output end electrode and a No. 3 output end electrode of the driving power supply circuit board respectively;
at least one second LED chip is arranged on each of a first circuit layer and a second circuit layer in the copper substrate, and two electrodes of each second LED chip are electrically connected with a No. 1 output end electrode and a No. 2 output end electrode of the driving power supply circuit board respectively;
the driving power supply circuit board comprises a relay, the contact type of the relay is a conversion contact type, a first stationary contact of the relay is electrically connected with the No. 3 output end electrode, a second stationary contact of the relay is electrically connected with the No. 2 output end electrode, the relay is used for controlling the movable contact and the first stationary contact in the relay to be closed when the input voltage of the two-pin plug is 12V, so that the No. 1 output end electrode and the No. 3 output end electrode of the driving power supply circuit board supply power to the first LED chip, and the relay is used for controlling the movable contact and the second stationary contact in the relay to be closed when the input voltage of the two-pin plug is 5-9V, so that the No. 1 output end electrode and the No. 2 output end electrode of the driving power supply circuit board supply power to the second LED chip.
2. The LED headlamp bulb as claimed in claim 1, wherein the heat sink fins are provided with axial through holes, and the driving power supply circuit board is embedded in the bores of the axial through holes in the heat sink fins.
3. The LED headlamp bulb as claimed in claim 1, further comprising a DC centrifugal fan for exhausting and dissipating heat from the lamp cavity, the first LED chip and the second LED chip in the automotive headlamp assembly;
the LED headlamp bulb is fixedly inserted into the mounting through hole in the rear shell of the automobile headlamp assembly;
the direct-current centrifugal fan is in a flat round box shape, the direct-current centrifugal fan is used for detachably covering the mounting through hole from the outer side of the mounting through hole so as to extract hot air in the automobile headlamp assembly and prevent dust from entering the mounting through hole, the direct-current centrifugal fan is connected in the mounting through hole in the rear shell in a buckling mode, and an air inlet of the direct-current centrifugal fan is located in the mounting through hole and is communicated with the lamp cavity so as to be used for extracting air and dissipating heat of the automobile headlamp assembly;
two electrodes of a direct current motor in the direct current centrifugal fan are respectively and electrically connected with two pins of the two-pin plug through leads so as to enable a switch of the direct current centrifugal fan to be controlled by a key switch, and the direct current centrifugal fan can be started when an automobile is electrified;
the direct current centrifugal fan is electrically connected with the driving power supply circuit board in parallel.
4. The LED headlight bulb as claimed in claim 1, wherein the left half lamp post, the copper substrate and the right half lamp post are stacked together to form a complete lamp post, the copper substrate is sandwiched between the left half lamp post and the right half lamp post, bolt holes are formed in the tops of the left half lamp post, the copper substrate and the right half lamp post, and the left half lamp post, the copper substrate and the right half lamp post are connected through bolts inserted into the bolt holes.
5. The LED headlight bulb as claimed in any one of claims 1 to 4, wherein the lamp post formed by fastening and overlapping the left half lamp post, the copper substrate and the right half lamp post is inserted and fixed in the top opening of the axial through hole in the heat dissipation fin so that the left half lamp post and the right half lamp post are in direct contact with the heat dissipation fin for heat conduction;
the fan is arranged at the bottom opening of the axial through hole in the radiating fin;
the fan cover wraps the fan, the fan cover is arranged at the bottom ends of the radiating fins, and radiating through holes are formed in the side wall and the bottom wall of the fan cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921896309.8U CN210740289U (en) | 2019-11-05 | 2019-11-05 | A LED headlight bulb for car just has daytime running light function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921896309.8U CN210740289U (en) | 2019-11-05 | 2019-11-05 | A LED headlight bulb for car just has daytime running light function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210740289U true CN210740289U (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921896309.8U Active CN210740289U (en) | 2019-11-05 | 2019-11-05 | A LED headlight bulb for car just has daytime running light function |
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| Country | Link |
|---|---|
| CN (1) | CN210740289U (en) |
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- 2019-11-05 CN CN201921896309.8U patent/CN210740289U/en active Active
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