CN219571848U - Dynamic projection lens and automobile steering lamp - Google Patents
Dynamic projection lens and automobile steering lamp Download PDFInfo
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- CN219571848U CN219571848U CN202320426926.1U CN202320426926U CN219571848U CN 219571848 U CN219571848 U CN 219571848U CN 202320426926 U CN202320426926 U CN 202320426926U CN 219571848 U CN219571848 U CN 219571848U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The utility model discloses a dynamic projection lens, comprising: the input end of the power supply interface is connected with an external power supply, and the output end of the power supply interface is connected with the light-emitting circuit; the light-emitting circuit is arranged at one end of the plurality of lens assemblies; a plurality of lens assemblies, each lens assembly is internally provided with a picture body, and the picture body is close to the other end of the lens assembly; and a plurality of image pieces, each of which has an image attached to a surface thereof. The power supply interface is connected with an external power supply and supplies power to the light-emitting circuit, so that the light-emitting circuit is lightened, light is projected to one end of the plurality of lens assemblies, and as each lens assembly is provided with a picture body with an image, the light can be projected to the surface of the picture body through the lens assembly and form projection corresponding to the image, and the projection is projected to the outside ground through the other end of the corresponding lens assembly, so that a warning effect is carried out on pedestrians; when the automobile is started, the utility model can throw projection when being arranged on the rearview mirror, and can remind a driver of pedestrian passing, thereby reducing the occurrence of accidents.
Description
Technical Field
The utility model relates to the technical field of automobile projection, in particular to a dynamic projection lens and an automobile steering lamp.
Background
At present, when an automobile turns left or right, a front steering lamp and a rear steering lamp of the automobile are usually lightened and flash to remind other vehicles and pedestrians; the reminding mode is not obvious, and particularly at night, the reminding mode has no more warning effect for pedestrians walking at low head; meanwhile, when the automobile is started, drivers often neglect to confirm whether pedestrians pass around the automobile, and no auxiliary reminding is performed, so that safety accidents are often caused.
Disclosure of Invention
Based on this, it is necessary to address the above-described problems, and a dynamic projection lens and an automobile turn signal lamp are proposed.
A dynamic projection lens, comprising:
the power supply interface, the input end is connected with external power, the output end is connected with luminescent circuit, is used for supplying power to the said luminescent circuit;
the light-emitting circuit is arranged at one end of the plurality of lens assemblies and used for projecting light to one end of the plurality of lens assemblies;
the lens assemblies are internally provided with a picture body, the picture body is close to the other end of the lens assembly and is used for receiving the light and projecting the light to the surface of the picture body after optical treatment;
the plurality of picture bodies are respectively provided with an image on the surface, and the images are used for receiving the light which is optically processed by the corresponding lens component and forming projections corresponding to the images, and the projections are projected to the outside through the other end corresponding to the lens component.
In one embodiment, the light emitting circuit includes:
the main control unit is connected with the power supply interface, and the output end of the main control unit is connected with the input end of the first light-emitting unit and the input end of each second light-emitting unit and is used for outputting high-level signals with different time intervals to the first light-emitting unit and each second light-emitting unit;
the first light-emitting unit is used for receiving the high-level signal and emitting light;
the plurality of second light emitting units are used for receiving the high-level signals and emitting light.
In one embodiment, the first light emitting unit includes:
one end of the first protection circuit is connected with the power supply interface, and the other end of the first protection circuit is connected with one end of the first luminous body and used for protecting the first luminous body;
one end of the first amplifying circuit is connected with the output end of the main control unit, and the other end of the first amplifying circuit is connected with the other end of the first illuminant and is used for amplifying a high-level signal output by the main control unit and outputting the high-level signal to the first illuminant;
the first adjusting circuit is connected between the first amplifying circuit and the first illuminant and used for adjusting the brightness of the first illuminant;
the first illuminant is used for receiving the amplified high-level signal and emitting light.
In one embodiment, the second light emitting unit includes:
one end of the second protection circuit is connected with the power supply interface, and the other end of the second protection circuit is connected with one end of the second illuminant and used for protecting the second illuminant;
one end of the second amplifying circuit is connected with the output end of the main control unit, and the other end of the second amplifying circuit is connected with the other end of the second illuminant and is used for amplifying the high-level signal output by the main control unit and outputting the amplified high-level signal to the second illuminant;
the second adjusting circuit is connected between the second amplifying circuit and the second illuminant and used for adjusting the brightness of the second illuminant;
the second illuminant is used for receiving the amplified high-level signal and emitting light.
In one embodiment, the first protection circuit includes: a first diode and a second diode;
the first amplifying circuit includes: a first MOS tube;
the first adjusting circuit includes: a first resistor;
the first illuminant includes: a first light emitting diode;
the anode of the first diode is connected with the power supply interface, the cathode of the first diode is connected with the anode of the second diode, the cathode of the second diode is connected with the anode of the first light-emitting diode, the cathode of the first light-emitting diode is connected with the drain electrode of the first MOS tube, the grid electrode of the first MOS tube is connected with the output end of the main control unit, and the source electrode of the first MOS tube is grounded;
the first resistor is connected between the grid electrode of the first MOS tube and the output end of the main control unit.
In one embodiment, the second protection circuit includes: a third diode and a fourth diode;
the second amplifying circuit includes: a second MOS tube;
the second adjusting circuit includes: a second resistor;
the second illuminant includes: a second light emitting diode;
the anode of the third diode is connected with the power supply interface, the cathode of the third diode is connected with the anode of the fourth diode, the cathode of the fourth diode is connected with the anode of the second light-emitting diode, the cathode of the second light-emitting diode is connected with the drain electrode of the second MOS tube, the grid electrode of the second MOS tube is connected with the output end of the main control unit, and the source electrode of the second MOS tube is grounded;
the second resistor is connected between the grid electrode of the second MOS tube and the output end of the main control unit.
In one embodiment, the image sheet is a glass body engraved with the image.
In one embodiment, the lens assembly includes: the device comprises a lens light absorption shell, a condensing lens, a condensing light spot lens, a light filtering gasket, an imaging lens, a blue and yellow light eliminating processing lens, an optical image processing lens and a lens front shell;
the lens light absorption shell is connected with the lens front shell and forms a cavity, and the condensing lens, the condensing light spot lens, the light filtering gasket, the imaging lens, the blue and yellow light eliminating processing lens and the optical image processing lens are sequentially arranged in the cavity.
In one embodiment, the number of lens assemblies is the sum of the number of first light emitting units and the number of second light emitting units.
An automobile steering lamp comprises a lamp body and the dynamic projection lens, wherein the dynamic projection lens is arranged on the lamp body.
The implementation of the embodiment of the utility model has the following beneficial effects:
the utility model is connected with an external power supply (when the automobile steering switch is turned on, the connection with the power supply is realized) through the power supply interface, and the power supply is supplied to the light-emitting circuit, so that the light-emitting circuit is lightened, the light is projected to one end of a plurality of lens assemblies, and as each lens assembly is provided with a picture body with an image, the light can be projected to the surface of the picture body through the lens assembly to form a projection corresponding to the image, and the projection is projected to the outside through the other end of the corresponding lens assembly, so that the image projection is mapped to the ground when a driver steers, and the further warning effect is carried out on the passersby; meanwhile, when the automobile is started, the utility model can throw projection when being arranged on the rearview mirror, and remind pedestrians before the automobile is started, so that accidents are reduced.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Wherein:
FIG. 1 is a block diagram of a dynamic projection lens in one embodiment;
FIG. 2 is a circuit diagram of a lighting circuit in one embodiment;
fig. 3 is a block diagram of a lens assembly in one embodiment.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
At present, when an automobile turns left or right, a front steering lamp and a rear steering lamp of the automobile are usually lightened and flash to remind other vehicles and pedestrians; the reminding mode is not obvious, and particularly at night, the reminding mode has no more warning effect for pedestrians walking at low head; meanwhile, when the automobile is started, drivers often neglect to confirm whether pedestrians pass around the automobile, and no auxiliary reminding is performed, so that safety accidents are often caused. In order to solve the above technical problems, as shown in fig. 1, please provide a dynamic projection lens, which includes: the lens assembly comprises a power supply interface 10, a light-emitting circuit 20, a plurality of lens assemblies 30 and a plurality of picture bodies 40, wherein the input end of the power supply interface 10 is connected with an external power supply, and the output end of the power supply interface is connected with the light-emitting circuit 20 and is used for supplying power to the light-emitting circuit 20; the light-emitting circuit 20 is disposed at one end of the lens assemblies 30, and is configured to project light to one end of the lens assemblies 30; each lens assembly 30 is internally provided with a picture body 40, and the picture body 40 is close to the other end of the lens assembly 30 and is used for receiving the light and projecting the light to the surface of the picture body 40 after optical treatment; an image is attached to the surface of each picture body 40, and is used for receiving the light optically processed by the corresponding lens assembly 30, and forming a projection corresponding to the image, and the projection is projected to the outside through the other end corresponding to the lens assembly 30. The utility model is connected with an external power supply (when the automobile steering switch is turned on, the connection with the power supply is realized) through the power supply interface, and the power supply is supplied to the light-emitting circuit, so that the light-emitting circuit is lightened, the light is projected to one end of a plurality of lens assemblies, and as each lens assembly is provided with a picture body with an image, the light can be projected to the surface of the picture body through the lens assembly to form a projection corresponding to the image, and the projection is projected to the outside through the other end of the corresponding lens assembly, so that the image projection is mapped to the ground when a driver steers, and the further warning effect is carried out on the passersby; meanwhile, when the automobile is started, the utility model can throw projection when being arranged on the rearview mirror, and remind pedestrians before the automobile is started, so that accidents are reduced.
In one embodiment, as shown in fig. 2, the light emitting circuit 20 includes: a main control unit 201, a first light emitting unit 202, and a plurality of second light emitting units 203; wherein, the power supply end of the main control unit 201 is connected with the power supply interface 10, and the output end is connected with the input end of the first light emitting unit 202 and the input end of each second light emitting unit 203, so as to output high-level signals with different time intervals to the first light emitting unit 202 and each second light emitting unit 203; the first light emitting unit 202 is configured to receive the high level signal and emit light; the plurality of second light emitting units 203 are configured to receive the high level signal and emit light. The main control unit 201 is a chip U1 in fig. 2, which is a micro MCU of any type capable of recording a program; the number of lens assemblies 30 is the sum of the number of first light emitting units 202 and the number of second light emitting units 203. Specifically, in the present embodiment, the number of the first light emitting units 202 is one, the number of the second light emitting units 203 is four, and the number of the corresponding lens assemblies is five.
On the basis of the above embodiment, as shown in fig. 2, the first light emitting unit 202 includes: a first protection circuit 2021, a first amplification circuit 2023, a first adjustment circuit 2022, and a first light-emitting body 2024; wherein, one end of the first protection circuit 2021 is connected to the power supply interface 10, and the other end is connected to one end of the first light emitter 2024, for protecting the first light emitter 2024; one end of the first amplifying circuit 2023 is connected to the output end of the main control unit 201, and the other end is connected to the other end of the first light emitter 2024, so as to amplify the high-level signal output by the main control unit 201 and output the amplified high-level signal to the first light emitter 2024; the first adjusting circuit 2022 is connected between the first amplifying circuit 2023 and the first light-emitting body 2024, and is configured to adjust brightness of the first light-emitting body 2024; the first light 2024 is configured to receive the amplified high-level signal and emit light.
In one embodiment, as shown in fig. 2, the second light emitting unit 203 includes: a second protection circuit 2031, a second amplification circuit 2033, a second adjustment circuit 2032, and a second light emitter 2034, wherein one end of the second protection circuit 2031 is connected to the power supply interface 10, and the other end is connected to one end of the second light emitter 2034 for protecting the second light emitter 2034; one end of the second amplifying circuit 2033 is connected to the output end of the main control unit 201, and the other end is connected to the other end of the second light emitter 2034, and is configured to amplify the high-level signal output by the main control unit 201 and output the amplified high-level signal to the second light emitter 2034; the second adjusting circuit 2032 is connected between the second amplifying circuit 2033 and the second light emitting body 2034, and is used for adjusting the luminance of the second light emitting body 2034; the second light 2034 is configured to receive the amplified high-level signal and emit light.
In one embodiment, as shown in fig. 2, the first protection circuit 2021 includes: a first diode D9 and a second diode D10; the first amplification circuit 2023 includes: a first MOS transistor Q5; the first adjusting circuit 2022 includes: a first resistor R10; the first light-emitting body 2024 includes: a first light emitting diode LED1; the anode of the first diode D9 is connected with the power supply interface 10, the cathode of the first diode D9 is connected with the anode of the second diode D10, the cathode of the second diode D10 is connected with the anode of the first light emitting diode LED1, the cathode of the first light emitting diode LED1 is connected with the drain of the first MOS transistor Q5, the gate of the first MOS transistor Q5 is connected with the output end of the main control unit 201, and the source of the first MOS transistor Q5 is grounded; the first resistor R10 is connected between the gate of the first MOS transistor Q5 and the output end of the main control unit 201. In this embodiment, the first diode D9 and the second diode D10 can prevent the first light emitting diode LED1 from being burned out due to excessive current in the initial stage of power up; the first MOS transistor Q5 can amplify the high-level signal; the first resistor R10 can adjust the brightness of the first light emitting diode LED1, and the first resistors R10 with different resistance values are arranged so that the brightness of the first light emitting diode LED1 is different; the first light emitting diode LED1 may be any color of light bead.
In one embodiment, as shown in fig. 2, the second protection circuit 2031 includes: a third diode D5 and a fourth diode D6; the second amplifying circuit 2033 includes: a second MOS transistor Q1; the second adjusting circuit 2032 includes: a second resistor R6; the second light 2034 includes: a second light emitting diode LED2; the anode of the third diode D5 is connected to the power supply interface 10, the cathode of the third diode D5 is connected to the anode of the fourth diode D6, the cathode of the fourth diode D6 is connected to the anode of the second light emitting diode LED2, the cathode of the second light emitting diode LED2 is connected to the drain of the second MOS transistor Q1, the gate of the second MOS transistor Q1 is connected to the output end of the main control unit 201, and the source of the second MOS transistor Q1 is grounded; the second resistor R6 is connected between the gate of the second MOS transistor Q1 and the output end of the main control unit 201. In this embodiment, the third diode D5 and the fourth diode D6 can prevent the second light emitting diode LED2 from being burned out due to excessive current in the initial stage of power up; the second MOS transistor Q1 can amplify the high-level signal; the second resistor R6 can adjust the brightness of the second light emitting diode LED2, and the second resistor R6 with different resistance values is arranged so that the brightness of the second light emitting diode LED2 is different; the second light emitting diode LED2 may be any color of light bead.
In one embodiment, the image body 40 is a glass body engraved with the image, on which the image portion is transparent to light and the other portion is opaque to light.
In one embodiment, as shown in fig. 3, the lens assembly 30 includes: a lens light absorbing housing 301, a condensing lens 302, a condensing spot lens 303, a light filtering spacer 304, an imaging lens 305, a blue-yellow light eliminating processing lens 306, an optical image processing lens 307, and a lens front housing 3087; the lens light absorbing housing 301 and the lens front housing 3087 are connected to form a cavity, and the condensing lens 302, the condensing light spot lens 303, the light filtering spacer 304, the imaging lens 305, the blue and yellow light eliminating lens 306 and the optical image processing lens 307 are sequentially disposed in the cavity.
The working principle of the utility model is as follows:
in the present utility model, the first light emitting unit 202 is taken as one example, the second light emitting unit 203 is taken as four examples, and the image on the image body is ">"; the dynamic projection lens of the utility model can be arranged on an external rearview mirror of an automobile, so that projection can be projected on the ground, when a driver starts steering operation, the connection between the power supply interface 10 and an external power supply is realized, and the chip U1 is powered to work, so that high-level signals with different time intervals are output to a first light-emitting diode LED1 in the first light-emitting unit 202, and a second light-emitting diode LED2, a third light-emitting diode LED3, a fourth light-emitting diode LED4 and a fifth light-emitting diode LED5 in the four second light-emitting units 203; when a driver starts steering operation, the chip U1 continuously outputs a first high-level signal to the first light emitting diode LED1, so that the first light emitting diode LED1 is continuously lightened; outputting a second high-level signal to the second light emitting diode LED2 after 0.15 seconds, so that the second light emitting diode LED2 is lightened; outputting a third high-level signal to the third light emitting diode LED3 after the next 0.15 seconds, so that the third light emitting diode LED3 is lightened; outputting a fourth high-level signal to the fourth light emitting diode LED4 after the next 0.15 seconds, so that the fourth light emitting diode LED4 is lighted; outputting a fifth high level signal to the fifth light emitting diode LED5 after the next 0.15 seconds, so that the fifth light emitting diode LED5; outputting a sixth high level signal to the second light emitting diode LED2 after the next 0.15 seconds so that the second light emitting diode LED2; the first light-emitting diode LED1 is continuously lightened, and the second light-emitting diode LED2, the third light-emitting diode LED3, the fourth light-emitting diode LED4 and the fifth light-emitting diode LED5 are circularly lightened, so that the purpose of dynamic projection is achieved.
The dynamic projection lens can be arranged on the mirror surface of the automobile exterior rearview mirror, so that projection can be projected on the mirror surface, an image on the image body can be a walking person, and dynamic movement of the person can be realized according to the principle, so that a humidifying person is reminded of paying attention to the walking passersby around the automobile.
The embodiment also provides an automobile steering lamp, which is characterized by comprising a lamp body and the dynamic projection lens, wherein the dynamic projection lens is arranged on the lamp body.
The foregoing disclosure is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.
Claims (10)
1. A dynamic projection lens, comprising:
the power supply interface, the input end is connected with external power, the output end is connected with luminescent circuit, is used for supplying power to the said luminescent circuit;
the light-emitting circuit is arranged at one end of the plurality of lens assemblies and used for projecting light to one end of the plurality of lens assemblies;
the lens assemblies are internally provided with a picture body, the picture body is close to the other end of the lens assembly and is used for receiving the light and projecting the light to the surface of the picture body after optical treatment;
the plurality of picture bodies are respectively provided with an image on the surface, and the images are used for receiving the light which is optically processed by the corresponding lens component and forming projections corresponding to the images, and the projections are projected to the outside through the other end corresponding to the lens component.
2. The dynamic projection lens of claim 1, wherein the light emitting circuit comprises:
the main control unit is connected with the power supply interface, and the output end of the main control unit is connected with the input end of the first light-emitting unit and the input end of each second light-emitting unit and is used for outputting high-level signals with different time intervals to the first light-emitting unit and each second light-emitting unit;
the first light-emitting unit is used for receiving the high-level signal and emitting light;
and the second light-emitting units are used for receiving the high-level signals and emitting light.
3. The dynamic projection lens of claim 2, wherein the first light emitting unit comprises:
one end of the first protection circuit is connected with the power supply interface, and the other end of the first protection circuit is connected with one end of the first luminous body and used for protecting the first luminous body;
one end of the first amplifying circuit is connected with the output end of the main control unit, and the other end of the first amplifying circuit is connected with the other end of the first illuminant and is used for amplifying a high-level signal output by the main control unit and outputting the high-level signal to the first illuminant;
the first adjusting circuit is connected between the first amplifying circuit and the first illuminant and used for adjusting the brightness of the first illuminant;
the first illuminant is used for receiving the amplified high-level signal and emitting light.
4. The dynamic projection lens of claim 2, wherein the second light emitting unit comprises:
one end of the second protection circuit is connected with the power supply interface, and the other end of the second protection circuit is connected with one end of the second illuminant and used for protecting the second illuminant;
one end of the second amplifying circuit is connected with the output end of the main control unit, and the other end of the second amplifying circuit is connected with the other end of the second illuminant and is used for amplifying the high-level signal output by the main control unit and outputting the amplified high-level signal to the second illuminant;
the second adjusting circuit is connected between the second amplifying circuit and the second illuminant and used for adjusting the brightness of the second illuminant;
the second illuminant is used for receiving the amplified high-level signal and emitting light.
5. A dynamic projection lens as claimed in claim 3, wherein,
the first protection circuit includes: a first diode and a second diode;
the first amplifying circuit includes: a first MOS tube;
the first adjusting circuit includes: a first resistor;
the first illuminant includes: a first light emitting diode;
the anode of the first diode is connected with the power supply interface, the cathode of the first diode is connected with the anode of the second diode, the cathode of the second diode is connected with the anode of the first light-emitting diode, the cathode of the first light-emitting diode is connected with the drain electrode of the first MOS tube, the grid electrode of the first MOS tube is connected with the output end of the main control unit, and the source electrode of the first MOS tube is grounded;
the first resistor is connected between the grid electrode of the first MOS tube and the output end of the main control unit.
6. The dynamic projection lens of claim 4 wherein,
the second protection circuit includes: a third diode and a fourth diode;
the second amplifying circuit includes: a second MOS tube;
the second adjusting circuit includes: a second resistor;
the second illuminant includes: a second light emitting diode;
the anode of the third diode is connected with the power supply interface, the cathode of the third diode is connected with the anode of the fourth diode, the cathode of the fourth diode is connected with the anode of the second light-emitting diode, the cathode of the second light-emitting diode is connected with the drain electrode of the second MOS tube, the grid electrode of the second MOS tube is connected with the output end of the main control unit, and the source electrode of the second MOS tube is grounded;
the second resistor is connected between the grid electrode of the second MOS tube and the output end of the main control unit.
7. The dynamic projection lens of claim 1 wherein the image plate is a glass body engraved with the image.
8. The dynamic projection lens of claim 7, wherein the lens assembly comprises: the device comprises a lens light absorption shell, a condensing lens, a condensing light spot lens, a light filtering gasket, an imaging lens, a blue and yellow light eliminating processing lens, an optical image processing lens and a lens front shell;
the lens light absorption shell is connected with the lens front shell and forms a cavity, and the condensing lens, the condensing light spot lens, the light filtering gasket, the imaging lens, the blue and yellow light eliminating processing lens and the optical image processing lens are sequentially arranged in the cavity.
9. The dynamic projection lens of claim 2, wherein,
the number of the lens assemblies is the sum of the number of the first light emitting units and the number of the second light emitting units.
10. An automobile steering lamp, comprising a lamp body and the dynamic projection lens according to any one of claims 1-9, wherein the dynamic projection lens is arranged on the lamp body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320426926.1U CN219571848U (en) | 2023-03-08 | 2023-03-08 | Dynamic projection lens and automobile steering lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320426926.1U CN219571848U (en) | 2023-03-08 | 2023-03-08 | Dynamic projection lens and automobile steering lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219571848U true CN219571848U (en) | 2023-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320426926.1U Active CN219571848U (en) | 2023-03-08 | 2023-03-08 | Dynamic projection lens and automobile steering lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219571848U (en) |
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2023
- 2023-03-08 CN CN202320426926.1U patent/CN219571848U/en active Active
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