CN217591153U - Lighting assembly - Google Patents
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- CN217591153U CN217591153U CN202120651364.1U CN202120651364U CN217591153U CN 217591153 U CN217591153 U CN 217591153U CN 202120651364 U CN202120651364 U CN 202120651364U CN 217591153 U CN217591153 U CN 217591153U
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Abstract
The utility model provides a lighting assembly, lighting assembly includes first pin, the second pin, the third pin, the fourth pin, LED light source and protection device, this protection device includes detection module and drive module, wherein, detection module include with first pin, the second pin, at least one pin detection circuitry that at least one pin or at least a pair of pin are connected in third pin and the fourth pin, whether in order to be used for detecting whether there is the signal of telecommunication through the pin, drive module includes the trigger circuit who is connected with at least one pin detection circuitry and the LED control switch who is connected with LED light source and trigger circuit, in order to be used for the work based on at least one pin detection circuitry's output control LED light source.
Description
Technical Field
The utility model relates to a lighting device especially relates to a lighting assembly's earth leakage protection device.
Background
The LED light source has been widely focused and applied because of its advantages of small size, high brightness, low power consumption, long service life, etc.
For an LED lighting assembly with lamp caps at two ends, power is supplied by a power supply device (e.g., a ballast or a mains supply directly) through two pins of each end lamp cap in a stable state, and after power is supplied, alternating current is supplied to an LED light source in a lamp tube through the pins. If any pin of the lamp holder is not installed, the lamp holder has the risks of electric leakage and arc discharge, the circuit inside the lamp tube can be damaged, safety accidents such as smoking and fire catching of the lamp holder due to the arc discharge can be caused, and even the risk of electric shock can be caused to an installer.
SUMMERY OF THE UTILITY MODEL
The utility model provides an illumination assembly, it can turn off the fluorescent tube under the condition of fluorescent tube installation mistake (for example, the pin is not installed), make the LED light source out of work, thereby to the people provide safety protection, prevent to electrocute, even in the course of the work of LED light source, detection circuitry also can carry out the detection of pin voltage or electric current in real time, do not install when detecting a certain pin, the LED light source of turn-off that also can be timely, prevent to electrocute, on the other hand also can provide the protection to other devices or circuits in the fluorescent tube, can prevent that the lamp holder from drawing the arc.
The utility model provides an illumination assembly, including at least one pin, light source and protection device, at least one pin with the light source electricity connects, its characterized in that, the protection device includes detection module, it includes with at least one pin detection circuit of at least one pin connection for whether there is the signal of telecommunication through with at least one the pin that pin detection circuit is connected; a driving module including a trigger circuit connected to the at least one pin detection circuit and a control switch connected to the light source and the trigger circuit for controlling operation of the light source based on an output of the at least one pin detection circuit.
In some embodiments, the light source is an LED light source, the control switch is an LED control switch, when one of the at least one pin detection circuit detects that no electrical signal passes through its connected pin, the trigger circuit is turned on to turn off the LED control switch, the LED light source does not operate, and when each of the at least one pin detection circuit detects that an electrical signal passes through its connected pin, the trigger circuit is turned off to operate the LED light source normally.
In some embodiments, the light source is an LED light source, the control switch is an LED control switch, the trigger circuit includes at least one pin trigger circuit connected to the at least one pin detection circuit, and a trigger control switch connected to the at least one pin trigger circuit, and the trigger control switch is connected to the LED control switch.
In some embodiments, when any one of the at least one pin detection circuit does not detect that an electrical signal passes through a pin connected thereto, the pin trigger circuit connected thereto is turned off, and when any one of the at least one pin trigger circuit is turned off, the trigger control switch is turned on, the LED control switch is turned off, and the LED light source does not operate.
In some embodiments, the at least one pin is configured to include a first pin, a second pin, a third pin, and a fourth pin, and the detection module includes a first pin detection circuit connected to the first pin, a second pin detection circuit connected to the second pin, a third pin detection circuit connected to the third pin, and a fourth pin detection circuit connected to the fourth pin; the at least one pin trigger circuit comprises a first pin trigger circuit connected with the first pin detection circuit, a second pin trigger circuit connected with the second pin detection circuit, a third pin trigger circuit connected with the third pin detection circuit, and a fourth pin trigger circuit connected with the fourth pin detection circuit.
In some embodiments, at least one of the at least one pin detection circuit comprises a diode connected to the pin and a capacitance and a resistance connected between a negative terminal of the diode and ground.
In some embodiments, the at least one pin trigger circuit comprises at least one pin control switch, a first terminal of the at least one pin control switch being connected to the diode for receiving the output of the at least one pin detection circuit, and a second terminal of the at least one pin control switch being connected to the first terminal of the trigger control switch.
In some embodiments, the trigger circuit comprises at least one pin trigger circuit connected to the at least one pin detection circuit, and a logic gate connected to the at least one pin trigger circuit, and the logic gate is connected to the LED control switch.
In some embodiments, the logic gate is configured to output a low level to turn on the LED control switch when each of the at least one pin detection circuits detects a signal passing through the connected pin, and to output a high level to turn off the LED control switch when any of the at least one pin detection circuits detects no signal passing through its connected pin.
In some embodiments, the driving module further includes a delay circuit, the delay circuit turns on the control switch within a preset time after the power is turned on, and the delay circuit is reset when the power is not turned on.
Other features and aspects will become apparent from the following detailed description, the accompanying drawings, and the claims.
Drawings
The invention may be better understood by describing exemplary embodiments thereof in conjunction with the following drawings, in which:
fig. 1 is a schematic view of a lighting assembly of some embodiments of the present invention.
Detailed Description
In the following description of the embodiments of the present invention, it is noted that in the detailed description of the embodiments, all the features of the actual embodiments may not be described in detail in order to make the description concise and concise. It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions are made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another. Moreover, it should be appreciated that such a development effort might be complex and tedious, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without departing from the scope of this disclosure.
The use of "first," "second," and similar terms in the description and in the claims is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The terms "a" or "an," and the like, do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalent, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, nor are they restricted to direct or indirect connections.
The lighting assemblies of the present application include, but are not limited to, light Emitting Diode (LED) lamps, organic Light Emitting Diode (OLED) lamps, fluorescent lamps, and High Intensity Discharge (HID) lamps. The LED lamp will be described in detail below as an example.
Fig. 1 shows a specific circuit diagram of a lighting assembly of some embodiments of the present invention. As shown in fig. 1, the lighting assembly 100 includes a first pin 101, a second pin 102, a third pin 103, a fourth pin 104, an LED light source 105, and a protection device, the protection device includes a detection module 110 and a driving module 120, the detection module 110 includes at least one pin detection circuit connected to at least one pin or at least one pair of pins among the first pin 101, the second pin 102, the third pin 103, and the fourth pin 104 for detecting whether an electrical signal passes through the pins, and the driving module 120 includes a trigger circuit 122 connected to the at least one pin detection circuit and an LED control switch 121 connected to the LED light source 105 and the trigger circuit 122 for controlling an operation of the LED light source 105 based on an output of the at least one pin detection circuit.
When one of the at least one pin detection circuit detects that no electrical signal passes through the pin connected with the pin detection circuit, the trigger circuit 122 is turned on to turn off the LED control switch 121, and the LED light source 105 does not operate, and when each of the at least one pin detection circuit detects that an electrical signal passes through the pin connected with the pin detection circuit, the trigger circuit 122 is turned off to enable the LED light source 105 to normally operate.
Specifically, the detection module 110 includes a first pin detection circuit 111 connected to the first pin 101, a second pin detection circuit 112 connected to the second pin 102, a third pin detection circuit 113 connected to the third pin 103, and a fourth pin detection circuit 114 connected to the fourth pin 104.
In some embodiments, one of the at least one pin detection circuit includes a diode connected to the pin and a capacitor and a resistor connected between a negative terminal of the diode and ground. When the pin is passed by an electric signal, the negative end of the diode outputs high level, and when no electric signal is passed, the negative end of the diode outputs low level.
In other embodiments, the diode may be connected in reverse, that is, the negative terminal of the diode is connected to the pin, and the positive terminal of the diode is used for outputting the detection signal, wherein the positive terminal of the diode outputs a low level when the pin passes an electric signal, and outputs a high level when no electric signal passes.
In some embodiments, the electrical signal may be a voltage signal or a current signal. When an electrical signal passes through a certain pin, the pin detection circuit connected with the pin can output a high level, and when no electrical signal passes through the pin, the pin detection circuit connected with the pin can output a low level.
Specifically, the first pin detection circuit 111 includes a diode D1, a capacitor C1 and a resistor R1, wherein a positive terminal of the diode D1 is connected to the first pin 101, a negative terminal of the diode D1 is used for outputting the first detection signal (a), and the capacitor C1 and the resistor R1 are connected in parallel between the negative terminal of the diode D1 and the ground. When the first pin 101 is mounted, a voltage or a current passes through the diode D1, and the first detection signal (a) may output (or detect) a high level, and when the first pin 101 is not mounted, no voltage or current passes through the diode D1, and the first detection signal (a) is a low level.
Similarly, the second pin detection circuit 112 includes a diode D2, a capacitor C2 and a resistor R2, wherein a positive terminal of the diode D2 is connected to the second pin 102, a negative terminal of the diode D2 is used for outputting the second detection signal (B), and the capacitor C2 and the resistor R2 are connected in parallel between the negative terminal of the diode D2 and the ground. When the second pin 102 is mounted, a voltage or a current passes through the diode D2, and the second detection signal (B) may output (or detect) a high level, and when the second pin 102 is not mounted, no voltage or current passes through the diode D2, and the second detection signal (B) is a low level.
The third pin detection circuit 113 includes a diode D3, a capacitor C3 and a resistor R3, wherein a positive terminal of the diode D3 is connected to the third pin 103, a negative terminal of the diode D3 is used for outputting the third detection signal (C), and the capacitor C3 and the resistor R3 are connected in parallel between the negative terminal of the diode D3 and the ground. When the third pin 103 is mounted, a voltage or a current passes through the diode D3, and the third detection signal (C) may output (or detect) a high level, and when the third pin 103 is not mounted, no voltage or current passes through the diode D3, and the third detection signal (C) is a low level.
The fourth pin detection circuit 114 includes a diode D4, a capacitor C4 and a resistor R4, wherein a positive terminal of the diode D4 is connected to the fourth pin 104, a negative terminal of the diode D4 is used for outputting the fourth detection signal (D), and the capacitor C4 and the resistor R4 are connected in parallel between the negative terminal of the diode D4 and the ground. When the fourth pin 104 is mounted, a voltage or a current passes through the diode D4, and the fourth detection signal (D) may output (or detect) a high level, and when the fourth pin 104 is not mounted, no voltage or current passes through the diode D4, and the fourth detection signal (D) is a low level.
In some embodiments, the trigger circuit 122 includes at least one pin trigger circuit connected to the at least one pin detection circuit, and a trigger control switch T0 connected to the at least one pin trigger circuit, and the trigger control switch T0 is connected to the LED control switch 121.
In some embodiments, the turning on or off of the LED control switch 121 can control the LED light source 105 to operate or not operate. Specifically, taking MOSFET as an example, the second terminal (drain d) of the LED control switch 121 is connected to the negative terminal of the LED light source 105, the third terminal (source s) of the LED control switch 121 is connected to ground, when the LED control switch 121 is turned on, the circuit where the LED light source 105 is located forms a path, the LED light source 105 can work normally, and when the LED control switch 121 is turned off, the circuit where the LED light source 105 is located is an open circuit, and the LED light source 103 cannot work.
The LED control switch 121 may be, for example, a metal oxide semiconductor field effect transistor (mosfet), a Bipolar Junction Transistor (BJTs), a thyristor, a relay, or the like, or may be an LED control device such as a switching power supply or a linear power supply.
Specifically, the at least one pin trigger circuit includes a first pin trigger circuit 131 connected to the first pin detection circuit 111, a second pin trigger circuit 132 connected to the second pin detection circuit 112, a third pin trigger circuit 133 connected to the third pin detection circuit 113, and a fourth pin trigger circuit 134 connected to the fourth pin detection circuit 115.
In some embodiments, the at least one pin trigger circuit comprises at least one pin control switch having a first terminal connected to the diode for receiving the output of the at least one pin detection circuit and a second terminal connected to the first terminal of the trigger control switch T0.
Specifically, the first pin trigger circuit 131 includes a first pin control switch T1, a first end of the first pin control switch T1 is connected to a diode D1 in the first pin detection circuit 111 for receiving the first detection signal (a), and a second end of the first pin control switch T1 is connected to a first end of the trigger control switch T0 through a diode D11. The first pin trigger circuit 131 further includes a capacitor C5 connected in parallel with the first pin control switch T1, when the first detection signal (a) is at a low level, the power Vcc may charge the capacitor C5, and the trigger control switch T0 is turned on, and when the first detection signal (a) is at a high level, the first pin control switch T1 is turned on, and the trigger control switch T0 is turned off.
The second pin trigger circuit 132 includes a second pin control switch T2, a first terminal of the second pin control switch T2 is connected to the diode D2 in the second pin detection circuit 112 for receiving the second detection signal (B), and a second terminal of the second pin control switch T2 is connected to a first terminal of the trigger control switch T0 through the diode D12. The second pin trigger circuit 132 further includes a capacitor C6 connected in parallel with the second pin control switch T2, when the second detection signal (B) is at a low level, the power Vcc may charge the capacitor C6, and the trigger control switch T0 is turned on, and when the second detection signal (B) is at a high level, the second pin control switch T2 is turned on, and the trigger control switch T0 is turned off.
The third pin trigger circuit 133 includes a third pin control switch T3, a first end of the third pin control switch T3 is connected to a diode D3 in the third pin detection circuit 113 for receiving the third detection signal (C), and a second end of the third pin control switch T3 is connected to a first end of the trigger control switch T0 through a diode D13. The third pin trigger circuit 133 further includes a capacitor C7 connected in parallel to the third pin control switch T3, when the third detection signal (C) is at a low level, the power Vcc may charge the capacitor C7 to turn on the trigger control switch T0, and when the third detection signal (C) is at a high level, the third pin control switch T3 is turned on to turn off the trigger control switch T0.
The fourth pin trigger circuit 134 includes a fourth pin control switch T4, a first end of the fourth pin control switch T4 is connected to the diode D4 in the fourth pin detection circuit 114 for receiving the fourth detection signal (D), and a second end of the fourth pin control switch T4 is connected to the first end of the trigger control switch T0 through the diode D14. The fourth pin trigger circuit 134 further includes a capacitor C8 connected in parallel with the fourth pin control switch T4, when the fourth detection signal (D) is at a low level, the power Vcc may charge the capacitor C8, and the trigger control switch T0 is turned on, and when the fourth detection signal (D) is at a high level, the fourth pin control switch T4 is turned on, and the trigger control switch T0 is turned off.
The third ends of the first pin control switch T1, the second pin control switch T2, the third pin control switch T3 and the fourth pin control switch T4 are all grounded.
The second ends of the first pin control switch, the second pin control switch, the third pin control switch and the fourth pin control switch are connected to the first end (namely the driving end) of the trigger control switch T0, and when any one of the four pin control switches is turned off, the trigger control switch T0 can be turned on, so that the LED control switch is turned off to turn off the LED light source.
That is to say, when any one of the first pin detection circuit, the second pin detection circuit, the third pin detection circuit and the fourth pin detection circuit does not detect that an electric signal passes through a certain pin, the pin detection circuit connected with the pin outputs a low level, the pin trigger circuit connected with the pin is turned off, and when any one of the pin trigger circuits is turned off, the trigger control switch can be switched on to turn off the LED control switch, so that the LED light source does not work. Therefore, the control logic of the driving end of the trigger control switch is in a logical and relationship, when the driving end is all at a high level, the trigger control switch can be turned off, and as long as a low level exists, the trigger control switch is turned on.
Therefore, when one of the at least one pin detection circuit detects that no electric signal passes through the connected pin, the pin trigger circuit connected with the pin detection circuit is turned off, the trigger control switch is turned on, the LED control switch is turned off, and the LED light source does not work.
Therefore, as long as one pin is not installed, no electrical signal passes through the pin, and the LED light source cannot work normally. Through such setting, not only can avoid the risk that the electric leakage caused, can also play the guard action to the circuit in the fluorescent tube.
In another embodiment, the triggering circuit 122 includes at least one pin triggering circuit connected to the at least one pin detecting circuit, and a logic gate (not shown) connected to the at least one pin triggering circuit, and the logic gate is connected to the LED control switch 121. Specifically, the logic gate is configured to output a low level to turn on the LED control switch when each of the at least one pin detection circuit detects that a signal has passed through the connected pin, and to output a high level to turn off the LED control switch when any of the at least one pin detection circuit detects that no signal has passed through the connected pin.
In one embodiment, when the diodes in the four pin detection circuits are all positive, i.e., output a high level when there is an electrical signal passing through the pins and a low level when there is no electrical signal passing through the pins, the logic gate is configured as a logic and gate, i.e., when each of the four pin trigger circuits is on, the logic and gate outputs a low level to turn on the LED light source. In another embodiment, when the diodes in the four pin detection circuits are all reverse-connected, i.e., output a low level when there is an electrical signal passing through the pin and output a high level when there is no electrical signal passing through the pin, the logic gate is configured as a logic nor gate, i.e., the logic nor gate outputs a low level to turn on the LED light source when each of the four pin trigger circuits is off.
Although the pin detection circuits in the above embodiments are shown to simultaneously take positive signals and also take negative signals, it should be understood by those skilled in the art that the four pin detection circuits may also be arranged in different proportions, and the logic gate may include a logic and gate and a logic nor gate, as long as the logic gate can realize that when any pin is not connected, the logic gate outputs a high level to turn off the LED light source.
In some embodiments, the driving module 120 further includes a delay circuit for turning on the LED control switch 121 within a preset time after the power-on. Specifically, the delay circuit is a capacitor connected between the first terminal and the third terminal of the LED control switch 121. Under normal conditions, when the capacitor 123 is charged for a preset time (e.g., 0.2 s) or reaches a preset voltage, the LED control switch 121 is turned on, and the LED light source 105 can operate.
In some embodiments, the delay circuit is reset when no electrical signal passes through at least one of the first pin 101, the second pin 102, the third pin 103, and the fourth pin 104. For example, when the first detection signal (a) is at a low level, the trigger control switch T0 is turned on, two ends of the capacitor 123 are shorted, the capacitor 123 is discharged, which corresponds to a reset, when an electrical signal passes through each of the first pin 101, the second pin 102, the third pin 103, and the fourth pin 104, which corresponds to a first detection signal, the second detection signal, the third detection signal, and the fourth detection signal are at a high level, the trigger control switch T0 is turned off, the capacitor 123 is charged, when the capacitor is charged for a preset time (e.g., 0.2 s) or reaches a preset voltage, the LED control switch 121 is turned on, and the LED light source 105 can operate. The LED control switch can be switched on only by delaying again, so that arc discharge caused by incorrect installation of the lamp cap can be prevented.
That is, under normal conditions, when powered on or energized, the LED light source may operate normally after a preset time. Under the condition that whether need detect the pin have the signal of telecommunication to pass through, when power-on or circular telegram, electric capacity 123 can be charged, at this moment, if detect any pin and do not install, trigger circuit can produce protection signal so that electric capacity 123 is discharged, is equivalent to resetting, when detecting that each pin all installs, electric capacity 123 begins to charge, reach and predetermine time or predetermine the voltage after, LED control switch 121 switches on, and the LED light source can just work.
Although the present invention uses capacitors to delay time, it should be understood by those skilled in the art that any other components may be used to delay time or to time.
In some embodiments, the lighting assembly 100 further comprises a rectifying module comprising a first rectifying circuit connected between the LED light source 105 and the first and second pins 101, 102, and a second rectifying circuit connected between the LED light source 105 and the third and fourth pins 103, 104 for converting alternating current to direct current for provision to the LED light source 105. Specifically, the first rectifying circuit includes a rectifying bridge composed of diodes D21, D22, D23, and D24. The second rectifying circuit comprises a rectifying bridge consisting of diodes D31, D32, D33 and D34.
The utility model discloses protection device and protection method among lighting assembly of some embodiments, through setting up detection module, whether there is the signal of telecommunication to pass through each pin in detection that can be very convenient, whether install with judging this pin, even at the in-process of LED light source work, detection module still can detect whether the pin is installed, in case detect the pin and not install, then turn-off the LED light source, in this way in order to turn-off the fluorescent tube under the condition of fluorescent tube installation error, protect and avoid the lamp holder to draw the arc to the circuit in the fluorescent tube, on the other hand can also prevent the electric leakage, the electric shock, draw the arc risk.
Some exemplary embodiments have been described above, however, it should be understood that various modifications may be made. For example, suitable results may be achieved if the described techniques are performed in a different order and/or if components in the described systems, architectures, devices, or circuits are combined in a different manner and/or replaced or supplemented by additional components or their equivalents. Accordingly, other embodiments are within the scope of the following claims.
Claims (10)
1. A lighting assembly comprising at least one pin, a light source, and a protection device, said at least one pin being electrically connected to said light source, wherein said protection device comprises:
a detection module comprising at least one pin detection circuit connected to the at least one pin for detecting whether an electrical signal passes through the pin connected to the at least one pin detection circuit;
a driving module including a trigger circuit connected to the at least one pin detection circuit and a control switch connected to the light source and the trigger circuit for controlling operation of the light source based on an output of the at least one pin detection circuit.
2. The lighting assembly according to claim 1, wherein the light source is an LED light source, the control switch is an LED control switch, the triggering circuit is turned on to turn off the LED control switch when one of the at least one pin detection circuit detects that no electrical signal has passed through its connected pin, the LED light source is not operated, and the triggering circuit is turned off to operate the LED light source normally when each of the at least one pin detection circuit detects that an electrical signal has passed through its connected pin.
3. The lighting assembly according to claim 1, wherein the light source is an LED light source, the control switch is an LED control switch, the triggering circuit comprises at least one pin triggering circuit connected to the at least one pin detecting circuit, and a triggering control switch connected to the at least one pin triggering circuit, and the triggering control switch is connected to the LED control switch.
4. The lighting assembly according to claim 3, wherein when any of the at least one pin detection circuits does not detect an electrical signal passing through a pin connected thereto, the pin trigger circuit connected thereto is turned off, and when any of the at least one pin trigger circuit is turned off, the trigger control switch is turned on, the LED control switch is turned off, and the LED light source is not operated.
5. The lighting assembly according to claim 3 or 4, wherein the at least one pin is arranged to include a first pin, a second pin, a third pin, a fourth pin, the detection module includes a first pin detection circuit connected to the first pin, a second pin detection circuit connected to the second pin, a third pin detection circuit connected to the third pin, and a fourth pin detection circuit connected to the fourth pin; the at least one pin trigger circuit comprises a first pin trigger circuit connected with the first pin detection circuit, a second pin trigger circuit connected with the second pin detection circuit, a third pin trigger circuit connected with the third pin detection circuit, and a fourth pin trigger circuit connected with the fourth pin detection circuit.
6. The lighting assembly according to claim 3 or 4, wherein at least one of the at least one pin detection circuit comprises a diode connected to the pin and a capacitance and a resistance connected between a negative terminal of the diode and ground.
7. The lighting assembly according to claim 6, wherein the at least one pin activation circuit comprises at least one pin control switch, a first terminal of the at least one pin control switch being connected to the diode for receiving the output of the at least one pin detection circuit, a second terminal of the at least one pin control switch being connected to the first terminal of the activation control switch.
8. The lighting assembly according to claim 3, wherein the trigger circuit comprises at least one pin trigger circuit connected to the at least one pin detection circuit, and a logic gate connected to the at least one pin trigger circuit, and the logic gate is connected to the LED control switch.
9. The lighting assembly according to claim 8, wherein the logic gate is configured to output a low level to turn on the LED control switch when each of the at least one pin detection circuits detects that a signal is passing through the connected pin, and to output a high level to turn off the LED control switch when any of the at least one pin detection circuits detects that no signal is passing through the connected pin.
10. The lighting assembly of claim 1, wherein: the drive module further comprises a delay circuit, the control switch is conducted within a preset time after the delay circuit is electrified, and the delay circuit is reset when the delay circuit is not electrified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120651364.1U CN217591153U (en) | 2021-03-31 | 2021-03-31 | Lighting assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120651364.1U CN217591153U (en) | 2021-03-31 | 2021-03-31 | Lighting assembly |
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|---|---|
| CN217591153U true CN217591153U (en) | 2022-10-14 |
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| CN202120651364.1U Active CN217591153U (en) | 2021-03-31 | 2021-03-31 | Lighting assembly |
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- 2021-03-31 CN CN202120651364.1U patent/CN217591153U/en active Active
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