WO2023226955A1

WO2023226955A1 - Emergency lighting device

Info

Publication number: WO2023226955A1
Application number: PCT/CN2023/095689
Authority: WO
Inventors: 吴海涛
Original assignee: 嘉兴山蒲照明电器有限公司
Priority date: 2022-05-25
Filing date: 2023-05-23
Publication date: 2023-11-30

Abstract

Disclosed in the present application is an emergency lighting device. The emergency lighting device is configured with an adjusting switch SW, and the adjusting switch SW may be a slide switch, which is used for adjusting a color temperature. The adjusting switch SW is configured with a voltage stabilization component, and the voltage stabilization component is a voltage stabilization tube, a resistor or an inductor, or a combination thereof. In this way, when the color temperature is adjusted, the slide switch switches from one color temperature to another color temperature, a no-load situation occurs during the switching process, the voltage rises during the no-load situation, and a tiny current is generated by means of turning on the voltage stabilization component; and after the switching is ended, the voltage stabilization tube or the resistor is in a short-circuit state at this time, and therefore no loss is generated, thereby effectively reducing a current peak which is generated during the switching process, and lamp beads are protected, and thus the reliability of the emergency lighting device is improved.

Description

An emergency lighting device

Technical field

The present application relates to the field of lighting technology, and in particular to an emergency lighting device.

Background technique

There are two types of lights that can be used for emergency lighting: one is an emergency lighting light that does not light up when the mains power is normal and will only light up when the mains power is cut off; the other is an emergency lighting light that stays on whether the mains power is normal or out of power. Indicative emergency lights. When the mains power is normal, ordinary lighting is used to provide lighting. When the mains power is cut off, the emergency lighting does not light up after the power is cut off, and the emergency lighting special lights provide lighting. The color temperature is different under normal lighting mode and emergency lighting mode, and there is currently no emergency lighting device with adjustable color temperature on the market.

Therefore, there is a need to improve existing emergency lighting installations.

Contents of the invention

In order to overcome the above-mentioned shortcomings, this application proposes an emergency lighting device with good reliability and color temperature adjustment. In order to achieve the above objectives, this application adopts the following technical solution: an emergency lighting device, which is characterized in that it includes: a drive circuit, the power drive circuit has: a constant current drive module, a selector switch module, a color temperature adjustment module and a connection terminal, The selector switch module is connected to the constant current drive module and the color temperature adjustment module, so that the emergency lighting device works in the normal lighting mode or the emergency lighting mode. The color temperature adjustment module is connected to the connection end, and the connection end is used to connect the light panel, so The color temperature adjustment module has a color temperature adjustment switch, so that the emergency lighting device emits light with different color temperatures.

Preferably, the constant current drive module has: a first output terminal, a second output terminal, a third output terminal and a fourth output terminal, wherein the third output terminal and the fourth output terminal are used to connect to the emergency power supply.

Preferably, the connection terminal includes: a first color temperature port, a second color temperature terminal and an LED-port. The LED-port is electrically connected to the first output terminal or the third output terminal. The first color temperature port and the second color temperature port are electrically connected to the first output terminal or the third output terminal. The color temperature terminals are respectively connected to the matching terminals of the color temperature adjustment switch.

Preferably, in the emergency lighting device, voltage stabilizing components ZD1/ZD2 are respectively arranged between the input terminal 6 of the color temperature adjustment switch and the first color temperature port 1 and the second color temperature port 2 of J33. The input terminal of the slide switch SW2 is connected to the second output terminal 8 or the fourth output terminal 7 .

Preferably, the voltage stabilizing component is a voltage stabilizing tube, a resistor, an inductor, or a combination thereof.

Embodiments of the present application also provide a control method for an emergency lighting device. According to this control method, when the emergency mode is converted to the normal lighting mode, the ports of the control module sequentially output electrical signals to avoid damage to the LED lamp beads caused by current spikes and improve emergency response. Reliability of lighting fixtures.

beneficial effects

Compared with the existing technology, the emergency lighting device provided by this application has the following advantages: the emergency lighting device has high reliability and avoids damage to LED lamp beads caused by current spikes when switching to the normal power supply lighting mode.

Description of the drawings

The drawings are used to provide an understanding of the technical solution of the present disclosure and constitute a part of the specification. They are used to explain the technical solution of the present disclosure together with the embodiments of the present disclosure and do not constitute a limitation of the technical solution of the present disclosure. The shapes and sizes of each component in the drawings do not reflect the true proportions, and are only intended to illustrate the content of the present application.

Figure 1 is a functional topology diagram of the emergency lighting device according to the first embodiment of the present application;

Figure 2 is a functional topology diagram of the emergency lighting device according to the second embodiment of the present application;

Figure 3 is a schematic diagram of the functional topology of the constant current drive module in Figure 2;

Figure 4 is a schematic diagram of the driving sequence of emergency switching to commercial power according to an embodiment of the present application; and

FIG. 5 is a schematic diagram of the driving timing during inspection according to another embodiment of the present application.

Detailed ways

The above solution will be further described below with reference to specific examples. It should be understood that these examples are used to illustrate the present application and are not limited to limiting the scope of the present application. The implementation conditions used in the examples can be further adjusted according to the conditions of specific manufacturers. Unspecified implementation conditions are usually the conditions in routine experiments.

Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present disclosure shall have the usual meanings understood by those with ordinary skills in the field to which this application belongs. The "first", "second" and similar words used in the embodiments of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "include" mean that the elements or things appearing before the word include the elements or things listed after the word and their equivalents, but not Exclude other components or objects. Words such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. In this article, "electrical connection" includes the situation where the constituent elements are connected together through an element with some electrical effect. There is no particular limitation on the "component having some electrical function" as long as it can transmit and receive electrical signals between the connected components. "Elements with certain electrical effects" may be, for example, electrodes or wirings, switching elements such as transistors, or other functional elements such as resistors, inductors, or capacitors. "Up", "down", "left", "right", etc. are only used to express relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

In this application, the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "middle", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to having a specific orientation, or to be constructed and operated in a specific orientation.

This application provides an emergency lighting device, which is equipped with a power drive circuit, and the power drive circuit is equipped with an IC module. The first port of the IC module is connected to the first switch and the first light-emitting module via wires; the second port of the IC module is connected to the second light-emitting module via wires; wherein, the first light-emitting module and the second light-emitting module The color temperatures emitted by the light-emitting modules when working are different.

The first light-emitting module includes: an LED lamp bead branch connected according to certain rules. The LED lamp bead branch is connected in series with at least one resistor. One of the resistors is connected in parallel with a first voltage stabilizing component. One end of the resistor is connected to the first voltage stabilizing component. One end of a resistor and the other end of the first resistor are connected to the trigger end of the switch Q2. The first end of the switch Q2 is connected to the first switch via a wire. The second end of the switch Q2 is connected to the power supply end (VBAT).

The second light-emitting module includes: an LED lamp bead branch connected according to certain rules. The LED lamp bead branch is connected in series with at least one resistor. One of the resistors is connected in parallel with a second voltage stabilizing component. One end of the resistor is connected to the second voltage stabilizing component. One end of the two resistors and the other end of the second resistor are connected to the trigger end of the switch Q4. The first end of the switch Q4 is connected to the second port of the IC module via a wire. The second end of the switch Q4 is connected to the power supply end (VBAT).

In this embodiment, the first switch may be a switch (wall switch) installed on a wall, etc., and the first/second voltage stabilizing component may be a voltage stabilizing tube.

Next, the emergency lighting device proposed in this application will be described with reference to the accompanying drawings. Figure 1 is a schematic topological diagram of an emergency lighting device according to an embodiment of the present application. The emergency lighting device has a power drive circuit. An IC module is provided in the power drive circuit. The 10th port of the IC module is connected through a wire. to the first switch and the first detection module; the 9th port of the IC module is connected to the second detection module via a wire; the 8th port of the IC module is grounded, between the 9th port and the 10th port and the ground respectively. Configured with capacitor to detect The power supply of the wall switch, the 11th port of the IC module is connected to the boost drive circuit to make the emergency lighting device work in the emergency lighting mode.

The first detection module includes: a switch Q2. The triggering end of the switch Q2 is connected to one end of the resistor R71. The other end of the resistor R71 is connected to one end of the resistor R9 and the resistor R8. The resistor R8 is connected to L' through the diode D4. The second detection module includes: switch Q4, the trigger end of the switch Q4 is connected to the live wire L through the resistor branch, the first end of the switch Q4 is connected to the 9th port of the IC module and the resistor R77, and the second end of the switch Q4 is connected to Power supply terminal VBAT. The other end of the resistor R9 is electrically connected, and the capacitor C4 and the voltage regulator tube are respectively connected in parallel to the resistor R9. The branch is connected to the live wire L, the first end of the switch Q4 is connected to the 9th port of the IC module and the resistor R77, and the second end of the switch Q4 is connected to the power supply terminal VBAT.

When the emergency lighting device works in the emergency mode, the 9th port and the 10th port output a high level respectively, and the 7th port outputs a high level to trigger the emergency unit to emit light. Port 11 of the IC module outputs low level.

The following describes the driving of the emergency lighting device according to an embodiment of the present application with reference to Figures 1 and 4. If the mains power is available in the emergency mode (also called emergency transfer to mains power), see Figure 4 (the horizontal scale in Figure 4 is 2.5s after). The 9th and 10th ports of the IC module output high level respectively, the 11th port outputs low level, the 7th port outputs low level to turn off the boost circuit (boost1), and the 14th port outputs low level. Port 13 outputs high level. Through such a design, current spikes can be avoided during emergency switching to mains power supply, thereby reducing damage to the LED lamp beads.

The following describes the driving of the emergency lighting device during inspection according to an embodiment of the present application with reference to FIGS. 1 and 5 . Refer to FIG. 5 for the port control sequence during inspection. Press the inspection switch SW, the 1st port (V1) of the IC module outputs high level, SW outputs low level, the 13th port outputs low level, the 14th port outputs high level, and the 11th port outputs high level. , the 7th port outputs a high level to trigger the emergency unit to light up. After a delay of 3S, the 11th port outputs a low level, the 7th port outputs a low level, the 14th port outputs a low level, and the 13th port outputs a high level. , and then enter normal mode.

Figure 2 shows a topological diagram of an emergency lighting device according to another embodiment of the present application. The emergency lighting device includes: a power drive circuit, the power drive circuit has: a constant current drive module, a selector switch module, a color temperature adjustment module and a connection terminal.

The constant current drive module CC has: a first output terminal 5 , a second output terminal 8 , a third output terminal 4 and a fourth output terminal 7 . The third output terminal 4 and the fourth output terminal 7 are connected to the emergency power supply. The constant current drive module CC can use the existing drive module, and its output is a constant current.

The connection end is used to connect to a light board (not shown in the figure). The light board is equipped with a third light-emitting module and a fourth light-emitting module arranged according to certain rules. The light module, the third light-emitting module and the fourth light-emitting module emit light with different color temperatures. For example, the third light-emitting module works in normal lighting, and the fourth light-emitting module works in emergency lighting.

The connection terminal includes: a first color temperature port (such as 3000K), a second color temperature terminal (such as 6500K) and an LED-port. The LED-port is electrically connected to the first output terminal 5 or the third output terminal 4 .

The first color temperature port and the second color temperature port are respectively connected to the matching end of the slide switch SW2. And a voltage stabilizing device (such as a voltage stabilizing tube) is disposed between the input terminal of the slide switch SW2 and the first color temperature port and the second color temperature terminal respectively. The input terminal of the slide switch SW2 is connected to the second output terminal 8 or the fourth output terminal 7 .

The color temperature adjustment module includes a sliding switch SW2. The sliding switch SW2 is equipped with a voltage stabilizing device. Turning the adjustment switch SW2 is used to adjust the color temperature. The voltage stabilizing component is a voltage stabilizing tube, a resistor or an inductor, or a combination thereof.

When adjusting the color temperature in this way, slide the switch SW2 to switch from one color temperature to another (such as when switching from 3000K to 6500K). There will be no load during the switching process. When there is no load, the voltage rises and is turned on through the voltage stabilizing component. , generate a small current. When the switching is completed, the voltage regulator tube or resistor at this time is in a short-circuit state (short-circuited by the switch) without any loss, thereby effectively reducing the current spike generated by the switching process and achieving the effect of protecting the lamp beads. . Improve the reliability of emergency lighting equipment.

The selection switch module includes: a switch and a relay, and the switch is used to connect the color temperature adjustment module to the first output terminal 5 and the second output terminal 8 or the third output terminal 4 and the fourth output terminal 7 . To realize the emergency lighting device working in normal lighting mode or emergency mode. In one embodiment, the selection switch module includes: a switch and a relay RY1. The trigger terminal of the switch Q9 is electrically connected to the LED- terminal through a resistor. A resistor R19 is disposed between the trigger end and the first end of the switch Q9, and the first end is electrically grounded. The second end of the switch Q9 is connected to the first end of the relay RY1, the second end of the relay RY1 is connected to one end of the capacitor C, and the other end of the capacitor C is connected to the first end of the switch Q9. Both ends of the voltage regulator tube D14 are connected in parallel to both ends of the relay RY1.

In one embodiment, the topology of the constant current drive module CC in Figure 2 is as shown in Figure 3 . The constant current drive module CC includes: chip module U. Terminal 1 (DRAIN terminal) of chip module U is connected to one terminal of capacitor C22 and P pole of diode D and one terminal of inductor T1. Terminal 8 (VIN terminal) of chip module U is connected to To one end of the resistor R40, the 3-end (SOURCE end) of the chip module U is connected to one end of the resistor R32, the 4-end (SOURCE end) of the chip module U is connected to one end of the resistor R29/30/31/32, and the resistor R29/30 The other end of /31/32 is electrically grounded. The 6-end (RTH/EN end) of the chip module U is connected to one end of the resistor R67, and the other end of the resistor R67 is connected to ground. The other end of C22 is connected to the N pole of diode D, one end of C23, one end of C65, one end of resistor R57 and output terminal 8. The other end of inductor T1 is electrically connected to the other end of C23, the other end of C65 and resistor R57 The other end and output terminal 5 output a constant current through output terminal 5/8. One end of C24 is connected to the other end of the inductor T1, and the other end of C24 is electrically grounded.

The above embodiments are only for illustrating the technical concepts and features of the present application. Their purpose is to enable those familiar with this technology to understand the contents of the present application and implement them accordingly. This does not limit the scope of protection of the present application. Any equivalent transformation or modification made to the spirit of this application shall be covered by the protection scope of this application.

Claims

An emergency lighting device, characterized by including:

The first light-emitting module has a first color temperature;

a second light-emitting module having a second color temperature; a light panel, on which the first light-emitting module and the second light-emitting module are arranged;

The color temperature adjustment module is connected to the connection end, and the connection end is used to connect to the light panel;

Constant current driver module,; and

A selector switch module is connected to the color temperature adjustment module and the constant current drive module to control the emergency lighting device to work in a normal lighting mode or an emergency lighting mode,

Wherein, the color temperature adjustment module has a color temperature adjustment switch, so that the emergency lighting device responds to the switching of the color temperature adjustment switch to cause the first light-emitting module or the second light-emitting module to be lit.
The emergency lighting device according to claim 1, characterized in that:

The constant current drive module has: a first output terminal, a second output terminal, a third output terminal and a fourth output terminal, wherein the third output terminal and the fourth output terminal are used to connect to the emergency power supply.
The emergency lighting device according to claim 1, characterized in that:

The connection terminal includes: a first color temperature port, a second color temperature terminal and an LED-port,

The LED-port is electrically connected to the first output terminal or the third output terminal,

The first color temperature port and the second color temperature port are respectively connected to the matching end of the color temperature adjustment switch.
The emergency lighting device according to claim 1, characterized in that:

Voltage stabilizing components are respectively arranged between the input end of the color temperature adjustment switch and the first color temperature port and the second color temperature port.
The emergency lighting device according to claim 1, characterized in that:

The color temperature adjustment module is equipped with a voltage stabilizing component.
The emergency lighting device according to claim 4 or 5, characterized in that:

The voltage stabilizing component is a voltage stabilizing tube, a resistor, an inductor, or a combination thereof.
The emergency lighting device according to claim 4, characterized in that:

The color temperature adjustment switch is a sliding switch, and its input end is connected to the second output end or the fourth output end.
The emergency lighting device as claimed in claim 1, further comprising:

Emergency unit with third color temperature; and

A boost drive circuit is used to trigger the emergency unit based on the emergency power supply in the emergency lighting mode, so that the emergency unit is lit, wherein the boost drive circuit receives a signal in the emergency lighting mode. A signal with an enable level starts the operation of the boost driving circuit based on the signal with the enable level.
The emergency lighting device as claimed in claim 8, wherein when the emergency lighting mode is converted to the normal lighting mode, the circuit of the emergency unit is first cut off to shut down the operation of the boost drive circuit, and then After a delay period, the signal controlling the boost driving circuit is switched to the disable level.
The emergency lighting device as claimed in claim 8, further comprising:

A check switch is used to detect whether the operation function of the emergency unit is normal, wherein when the check switch is triggered, the boost drive circuit is activated and the circuit of the emergency unit is conducted for a detection period,

Wherein, the emergency lighting device enters the general lighting mode after the detection period.
The emergency lighting device according to claim 1, wherein the constant current drive module (CC) includes: a chip module (U), the DRAIN end (1 end) of the chip module is connected to one end of the capacitor (C22) and the diode (D ) and one end of the inductor (T1), the VIN end (8-terminal) of the chip module is connected to one end of the resistor (R40); the SOURCE end (3-terminal) of the chip module is connected to one end of the resistor (R32); the chip module's The other SOURCE terminal (terminal 4) is connected to one end of the resistor (R29/30/31/32), and the other end of the resistor (R29/30/31/32) is electrically grounded; the RTH/EN terminal (terminal 6) of the chip module ) is connected to one end of the resistor (R67), and the other end of the resistor (R67) is connected to ground; the other end of the capacitor (C22) is connected to the cathode of the diode (D), one end of the capacitor (C23), one end of the capacitor (C65), and the resistor One end of (R57) and the output end (8), and the other end of the inductor (T1) are electrically connected to the other end of the capacitor (C23), the other end of the capacitor (C65), the other end of the resistor (R57) and the output end ( 5), output a constant current through the output terminal (5/8); one end of the capacitor (C24) is connected to the other end of the inductor (T1), and the other end of the capacitor (C24) is electrically grounded.