Emergency lighting device with emergency test function

Abstract

An emergency lighting device with an emergency test function comprises an emergency test switch, an input circuit, a processing circuit, an emergency circuit and a load. The input circuit is provided with a first pin, a second pin, a third pin and a fourth pin. The first pin is connected with the live wire output end of the external power supply through the main switch. The second pin is connected with the live wire output end. And the third pin is connected with the neutral line output end of the external power supply through the emergency test switch. And the fourth pin is connected with the neutral line output end. The processing circuit is connected with the input circuit. The emergency circuit is connected with the processing circuit. The load is connected with the emergency circuit.

Description

Technical Field

[0001] The invention relates to a lighting device, in particular to an emergency lighting device with an emergency testing function. Background Art

[0002] Emergency lighting is a lighting device that is activated when the lighting system fails to operate normally due to an accident. It is highly related to the safety of the building. Emergency lighting has been widely used in buildings such as security monitoring rooms, computer rooms, large shopping malls, banks, hospitals, and reading rooms.

[0003] However, existing emergency lighting devices still have certain limitations. These emergency lighting devices lack effective emergency test functions. Emergency test functions are a key means of verifying whether emergency lighting devices can be started normally when needed. However, existing emergency lighting devices cannot quickly and effectively check whether their emergency functions are working properly.

[0004] Therefore, how to propose an emergency lighting device with reliable emergency test function has become an urgent issue. Summary of the invention

[0005] According to one embodiment of the present invention, an emergency lighting device with an emergency test function is provided, which includes an emergency test switch, an input circuit, a processing circuit, an emergency circuit and a load. The input circuit has a first pin, a second pin, a third pin and a fourth pin. The first pin is connected to the live wire output terminal of an external power supply through a main switch. The second pin is connected to the live wire output terminal. The third pin is connected to the neutral wire output terminal of the external power supply through the emergency test switch. The fourth pin is connected to the neutral wire output terminal. The processing circuit is connected to the input circuit. The emergency circuit is connected to the processing circuit. The load is connected to the emergency circuit.

[0006] In one embodiment, when the external power source is in a normal state and the main switch is turned on, the input circuit drives the load to perform a normal lighting mode, and the processing circuit controls the emergency circuit to enter a charging state.

[0007] In one embodiment, the processing circuit receives the emergency test signal when the emergency test switch operates in a preset operation mode, and executes the emergency test mode to control the emergency circuit to start the load.

[0008] In one embodiment, the preset operation mode is that the emergency test switch remains in the cut-off state within a preset time.

[0009] In one embodiment, the emergency lighting device further comprises a mode control switch and a mode control circuit. The mode control circuit is connected to the processing circuit. The mode control switch is connected to the mode control circuit. The mode control switch controls the mode control circuit to generate a mode control signal to control the processing circuit to enter the transport mode. The processing circuit enters a sleep state in the transport mode.

[0010] According to another embodiment of the present invention, an emergency lighting device with an emergency test function is provided, which includes an emergency test switch, an input circuit, a processing circuit, an emergency circuit and a load. The input circuit has a first pin, a second pin, a third pin and a fourth pin. The first pin is connected to the live output terminal of the external power supply through the main switch. The second pin is connected to the neutral output terminal of the external power supply. The third pin is connected through the live output terminal. The fourth pin is connected to the neutral output terminal through the emergency test switch. The processing circuit is connected to the input circuit. The emergency circuit is connected to the processing circuit. The load is connected to the emergency circuit.

[0011] In one embodiment, when the external power source is in a normal state and the main switch is turned on, the input circuit drives the load to perform a normal lighting mode, and the processing circuit controls the emergency circuit to enter a charging state.

[0012] In one embodiment, the processing circuit receives the emergency test signal when the emergency test switch operates in a preset operation mode, and executes the emergency test mode to control the emergency circuit to start the load.

[0013] In one embodiment, the preset operation mode is that the emergency test switch remains in the cut-off state within a preset time.

[0014] In one embodiment, the emergency lighting device further comprises a mode control switch and a mode control circuit. The mode control circuit is connected to the processing circuit. The mode control switch is connected to the mode control circuit. The mode control switch controls the mode control circuit to generate a mode control signal to control the processing circuit to enter the transport mode. The processing circuit enters a sleep state in the transport mode.

[0015] As described above, the emergency lighting device with emergency test function according to the embodiment of the present invention may have one or more of the following advantages:

[0016] (1) In one embodiment of the present invention, the emergency lighting device includes an emergency test switch, an input circuit, a processing circuit, an emergency circuit and a load. The input circuit has a first pin, a second pin, a third pin and a fourth pin. The first pin is connected to the live wire output terminal of the external power supply through the main switch. The second pin is connected to the live wire output terminal. The third pin is connected to the neutral wire output terminal of the external power supply through the emergency test switch. The fourth pin is connected to the neutral wire output terminal. The processing circuit is connected to the input circuit. The emergency circuit is connected to the processing circuit. The load is connected to the emergency circuit. When the emergency test switch is operated in a preset operation mode, the processing circuit receives an emergency test signal and executes an emergency test mode to control the emergency circuit to start the load. Through the design of the emergency test switch, the processing circuit can quickly and effectively execute the emergency test mode to test whether the emergency function is normal. Therefore, the reliability of the emergency lighting device can be greatly improved.

[0017] (2) In one embodiment of the present invention, the processing circuit receives an emergency test signal when the emergency test switch operates in a preset operation mode, and executes the emergency test mode to control the emergency circuit to start the load. The preset operation mode is that the emergency test switch remains in the cut-off state for a preset time. Through the circuit design of the emergency lighting device and the start-up mechanism of the emergency test mode, the processing circuit can directly determine whether to start the emergency test function based on the level state of the third pin (whether the third pin is connected to the external power supply). Therefore, regardless of whether the main switch is in the on state or the off state, the processing circuit can quickly and effectively execute the emergency test mode. Therefore, the maintenance of the emergency lighting device can be more convenient to meet the needs of actual applications.

[0018] (3) In one embodiment of the present invention, the emergency lighting device further includes a mode control switch and a mode control circuit. The mode control circuit is connected to the processing circuit. The mode control switch is connected to the mode control circuit. The mode control switch controls the mode control circuit to generate a mode control signal to control the processing circuit to enter the transport mode. The processing circuit enters a sleep state in the transport mode. Through the mode control switch and the mode control circuit, the processing circuit can also execute the transport mode to reduce the power consumption during the transport process. Therefore, the emergency lighting device can provide more additional functions, making the emergency lighting device more convenient to use and more widely used.

[0019] (4) In one embodiment of the present invention, the emergency lighting device further includes a warning light connected to the mode control circuit. The mode control circuit can generate a status signal and transmit it to the warning light, so that the warning light displays the status corresponding to the status signal in different warning modes. For example, fault status, charging status, transportation mode, emergency lighting mode, normal lighting mode, etc. Therefore, the functions of the emergency lighting device can be more complete to meet the needs of different applications.

[0020] (5) In one embodiment of the present invention, the design of the emergency lighting device is simple, so the desired effect can be achieved without significantly increasing the cost. Therefore, the practicality of the emergency lighting device can be greatly improved and can meet the trend of future development. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 FIG. 1 is a schematic diagram of an emergency lighting device with an emergency test function according to a first embodiment of the present invention.

[0022] Figure 2 FIG. 4 is a block diagram of a circuit structure of an emergency lighting device with an emergency test function according to a first embodiment of the present invention.

[0023] Figure 3 FIG. 4 is a block diagram of a circuit structure of an emergency lighting device with an emergency test function according to a second embodiment of the present invention.

[0024] Figure 4 FIG. 4 is a schematic diagram of an emergency lighting device with an emergency test function according to a third embodiment of the present invention.

[0025] Figure 5 FIG. 4 is another schematic diagram of an emergency lighting device with an emergency test function according to the third embodiment of the present invention.

[0026] Figure 6 FIG. 1 is a schematic diagram of a circuit structure of an emergency lighting device with an emergency test function according to a third embodiment of the present invention.

[0027] Figure 7 FIG. 4 is a schematic diagram of an emergency lighting device with an emergency test function according to a fourth embodiment of the present invention.

[0028] Figure 8 It is a side view of an emergency lighting device with emergency test function according to a fifth embodiment of the present invention.

[0029] Fig. 9 It is a first partial enlarged view of the emergency lighting device with emergency test function according to the fifth embodiment of the present invention.

[0030] Fig.10 It is a second partial enlarged view of the emergency lighting device with emergency test function according to the fifth embodiment of the present invention.

[0031] Fig.11 It is a third partial enlarged view of the emergency lighting device with emergency test function according to the fifth embodiment of the present invention.

[0032] Fig.12 It is a fourth partial enlarged view of the emergency lighting device with emergency test function according to the fifth embodiment of the present invention.

[0033] Fig.13 FIG. 5 is a schematic diagram of a load of an emergency lighting device with an emergency test function according to a fifth embodiment of the present invention.

[0034] Description of reference numerals:

[0035] 1-emergency lighting device; 11-input circuit; 12-processing circuit; 13-emergency circuit; 131-rechargeable battery; 132-charging control circuit; 14-load; 141-circuit board; 142-light source; 15-identification circuit; 16-anti-electric shock circuit; 17-constant current circuit; 18-isolation step-down circuit; 19-mode control circuit; 21-end cover; 211-cylindrical body; 212-cover body; 22-tube body; DS-mode control switch; AL-warning light; TS-emergency test switch; WS-main switch; P1-first pin; P2-second pin; P3-third pin; P4-fourth pin; Lt-live wire output terminal of external power supply; Nt-neutral wire output terminal of external power supply; CA-color temperature adjustment switch; GP-light-transmitting groove; M1-upper metal layer; M2-lower metal layer; Ts-emergency test signal; Cs-operation signal; Es-test control signal.

[0036] The detailed features and advantages of the present invention are described in detail in the following embodiments, and the contents are sufficient to enable anyone skilled in the relevant art to understand the technical content of the present invention and implement it accordingly. Moreover, according to the contents, claims and drawings disclosed in this specification, any person skilled in the relevant art can easily understand the purposes and advantages of the present creation. DETAILED DESCRIPTION

[0037] The following will refer to the relevant drawings to illustrate the embodiment of the emergency lighting device with emergency test function according to the present invention. For the sake of clarity and convenience of the illustration, the components in the drawings may be exaggerated or reduced in size and proportion. In the following description and / or claims, when it is mentioned that a component is "connected" or "coupled" to another component, it may be directly connected or coupled to the other component or there may be an intervening component; and when it is mentioned that a component is "directly connected" or "directly coupled" to another component, there is no intervening component, and other words used to describe the relationship between components or layers should be interpreted in the same way. For ease of understanding, the same components in the following embodiments are illustrated with the same symbols.

[0038] See also Figure 1 and Figure 2 . Figure 1 FIG. 1 is a schematic diagram of an emergency lighting device with an emergency test function according to a first embodiment of the present invention. Figure 2The block diagram is a circuit structure of an emergency lighting device with an emergency test function according to the first embodiment of the present invention. As shown in the figure, the emergency lighting device 1 includes an emergency test switch TS, an input circuit 11, a processing circuit 12, an emergency circuit 13 and a load 14.

[0039] The input circuit 11 has a first pin P1, a second pin P2, a third pin P3 and a fourth pin P4. The first pin P1 is connected to the live output terminal Lt of the external power supply through the main switch WS. The second pin P2 is connected to the live output terminal Lt. The third pin P3 is connected to the neutral output terminal Nt of the external power supply through the emergency test switch TS. The fourth pin P4 is connected to the neutral output terminal Nt. In one embodiment, the input circuit 11 includes one or more of a rectifier circuit, a filter circuit, an overcurrent protection circuit, an anti-surge circuit, and an electromagnetic interference (EMI) circuit. The circuit structure of the input circuit 11 should be well known to those skilled in the art, so it will not be described in detail here. In one embodiment, the main switch WS can be a wall switch, an external control switch or any existing switch component. In one embodiment, the external power supply can be a mains, a generator or other similar components. In one embodiment, the emergency test switch TS can be an external normally closed switch. In another embodiment, the emergency test switch TS can also be a built-in switch.

[0040] The processing circuit 12 is connected to the input circuit 11. In one embodiment, the processing circuit 12 may be a microcontroller (MCU), a central processing unit (CPU), an application-specific integrated circuit chip (ASIC), a field programmable gate array (FPGA) or other similar components. The circuit structure of the processing circuit 12 should be well known to those skilled in the art, so it will not be described in detail here.

[0041] The emergency circuit 13 includes a rechargeable battery and a charging control circuit. The charging control circuit can control the charging and discharging of the rechargeable battery, and its circuit structure should be well known to those skilled in the art, so it will not be described in detail here.

[0042] The load 14 is connected to the emergency circuit 13. In one embodiment, the load 14 may be a light source panel. In another embodiment, the load 14 may also be a light emitting diode (LED) or a light emitting diode array.

[0043] The processing circuit 12 receives the emergency test signal when the emergency test switch TS operates in a preset operation mode, and executes the emergency test mode to control the emergency circuit 13 to start the load 14. The preset operation mode is that the emergency test switch TS remains in the cut-off state within a preset time.

[0044] For example, the preset time may be 10 seconds. The user may operate the emergency test switch TS to keep it in the cut-off state within 10 seconds. At this time, since the emergency test switch TS is in the cut-off state, the processing circuit 12 detects that the level state of the third pin P3 indicates that the third pin P3 is not connected to the external power supply and the above state is maintained for 10 seconds. Then, the processing circuit 12 may execute the emergency test mode. In the emergency test mode, the processing circuit 12 controls the emergency circuit 13 to start the load 14 to perform the emergency function. The preset time may be 5 seconds, 7 seconds, etc., which may be adjusted according to actual needs.

[0045] In this way, the user can quickly and efficiently perform the emergency test function to confirm whether the processing circuit 12 can normally control the emergency circuit 13 to start the load 14. The user can take necessary measures in time when the above emergency function is abnormal.

[0046] Through the design of the emergency test switch TS, the processing circuit 12 can quickly and effectively execute the emergency test mode to test whether the emergency function is normal. Therefore, the reliability of the emergency lighting device 1 can be greatly improved.

[0047] In addition, the processing circuit 12 can directly determine whether to start the emergency test function according to the level state of the third pin P3 (whether the third pin P3 is connected to the external power supply). Therefore, no matter whether the main switch WS is in the on state or the off state, the processing circuit 12 can quickly and effectively execute the emergency test mode. Therefore, the maintenance of the emergency lighting device 1 can be more convenient to meet the needs of practical applications.

[0048] Of course, this embodiment is only used for illustration rather than to limit the scope of the present invention. Equivalent modifications or changes made to the emergency lighting device with emergency test function according to this embodiment should still be included in the patent scope of the present invention.

[0049] See also Figure 3 , which is a block diagram of the circuit structure of the emergency lighting device with emergency test function according to the second embodiment of the present invention, and please also refer to Figure 1 This embodiment illustrates the complete circuit structure of the emergency lighting device 1. As shown in the figure, the emergency lighting device 1 includes an emergency test switch TS, an input circuit 11, an identification circuit 15, a processing circuit 12, an emergency circuit 13, a load 14, an anti-electric shock circuit 16, a constant current circuit 17, an isolation step-down circuit 18, a mode control circuit 19, a mode control switch DS and a warning light AL.

[0050] The input circuit 11 has a first pin P1, a second pin P2, a third pin P3 and a fourth pin P4. The first pin P1 is connected to the live line output terminal Lt of the external power supply through the main switch WS. The second pin P2 is connected to the live line output terminal Lt. The third pin P3 is connected to the neutral line output terminal Nt of the external power supply through the emergency test switch TS. The fourth pin P4 is connected to the neutral line output terminal Nt.

[0051] The processing circuit 12 is connected to the input circuit 11 through the identification circuit 15, and is connected to the mode control circuit 19, the emergency circuit 13 and the isolation step-down circuit 18. In addition, the processing circuit 12 is also connected to the constant current circuit 17 through an optoelectronic isolation component (such as an optocoupler). The optoelectronic isolation component can provide a good isolation effect, and the processing circuit 12 can still transmit a signal to the constant current circuit 17 to control the constant current circuit 17. In one embodiment, the mode control circuit 19 can be a microcontroller (MCU), a central processing unit (CPU), an application-specific integrated circuit chip (ASIC), a field programmable logic gate array (FPGA) or other similar components. The circuit structure of the mode control circuit 19 should be well known to those skilled in the art, so it will not be repeated here. In one embodiment, the isolation step-down circuit 18 can be an isolation transformer or other components with similar functions. The circuit structure of the isolation step-down circuit 18 should be well known to those skilled in the art, so it will not be repeated here. In one embodiment, the identification circuit 15 can be a circuit that can identify high and low level signals, and its circuit structure should be well known to those skilled in the art, so it will not be repeated here.

[0052] The anti-electric shock circuit 16 is connected to the input circuit 11, and is connected to the isolation buck circuit 18 and the constant current circuit 17. The constant current circuit 17 is connected to the load 14. In one embodiment, the anti-electric shock circuit 16 can be a circuit with a leakage protection function, and its circuit structure should be well known to those skilled in the art, so it is not described in detail here. In one embodiment, the constant current circuit 17 can be a buck converter, a boost converter, a boost / buck converter or other similar components.

[0053] When the external power supply operates normally and the main switch WS is turned on, the input circuit 11 drives the load 14 to perform the normal lighting mode. When the external power supply operates normally and the main switch WS is turned on, the identification circuit 15 determines that the input circuit 11 is connected to the external power supply. At this time, the input circuit 11 drives the constant current circuit 17, so that the constant current circuit 17 drives the load 14 to perform the normal lighting mode. At the same time, the input circuit 11 supplies power to the emergency circuit 13 through the isolation step-down circuit 18, and the processing circuit 12 controls the emergency circuit 13 to enter the charging state.

[0054] The processing circuit 12 receives the emergency test signal Ts from the identification circuit 15 when the emergency test switch TS is operated in the preset operation mode. At this time, if the emergency lighting device 1 is in the normal lighting mode, the processing circuit 12 transmits the operation signal Cs to the constant current circuit 17 to turn off the constant current circuit 17. At the same time, the processing circuit 12 transmits the test control signal Es to the emergency circuit 13 to execute the emergency test mode and control the emergency circuit 13 to start the load 14.

[0055] When the external power supply is abnormal, the identification circuit 15 determines that the input circuit 11 is not connected to the external power supply. At this time, the processing circuit 12 controls the emergency circuit 13 to drive the load to execute the emergency lighting mode.

[0056] The mode control switch DS is connected to the mode control circuit 19. The mode control switch DS is used to control the mode control circuit 19 to generate a mode control signal to control the processing circuit 12 to enter the shipping mode. The processing circuit 12 enters a sleep state in the shipping mode and shuts down other circuits to reduce power consumption.

[0057] In addition, the warning light AL is connected to the mode control circuit 19. The mode control circuit 19 can generate a status signal and transmit it to the warning light AL, so that the warning light AL displays the status corresponding to the status signal in different warning modes. For example, fault status, charging status, transportation mode, emergency lighting mode, normal lighting mode, etc. Therefore, the functions of the emergency lighting device 1 can be more complete to meet the needs of different applications.

[0058] As can be seen from the above, the emergency lighting device 1 integrates both normal lighting function and emergency lighting function. The main switch WS is used to control the normal lighting mode. When the external power supply (mains power) is abnormal (power outage), the processing circuit 12 executes the emergency lighting mode. When the emergency test switch TS is triggered, the emergency test mode is executed regardless of whether the main switch WS is closed. In this way, the user can conveniently and regularly check whether the emergency lighting device 1 functions normally and whether it needs maintenance.

[0059] Of course, this embodiment is only used for illustration rather than to limit the scope of the present invention. Equivalent modifications or changes made to the emergency lighting device with emergency test function according to this embodiment should still be included in the patent scope of the present invention.

[0060] It is worth mentioning that the existing emergency lighting devices still have certain limitations. These emergency lighting devices lack an effective emergency test function. The emergency test function is a key means to check whether the emergency lighting device can be normally started when needed. However, the existing emergency lighting device cannot quickly and effectively check whether its emergency function is working properly. In contrast, according to an embodiment of the present invention, the emergency lighting device includes an emergency test switch, an input circuit, a processing circuit, an emergency circuit and a load. The input circuit has a first pin, a second pin, a third pin and a fourth pin. The first pin is connected to the live wire output end of the external power supply through the main switch. The second pin is connected to the live wire output end. The third pin is connected to the neutral wire output end of the external power supply through the emergency test switch. The fourth pin is connected to the neutral wire output end. The processing circuit is connected to the input circuit. The emergency circuit is connected to the processing circuit. The load is connected to the emergency circuit. The processing circuit receives an emergency test signal when the emergency test switch operates in a preset operation mode, and executes an emergency test mode to control the emergency circuit to start the load. Through the design of the emergency test switch, the processing circuit can quickly and effectively execute the emergency test mode to test whether the emergency function is normal. As a result, the reliability of emergency lighting installations can be significantly improved.

[0061] Furthermore, according to an embodiment of the present invention, the processing circuit receives an emergency test signal when the emergency test switch operates in a preset operation mode, and executes the emergency test mode to control the emergency circuit to start the load. The preset operation mode is that the emergency test switch remains in the cut-off state for a preset time. Through the circuit design of the emergency lighting device and the start-up mechanism of the emergency test mode, the processing circuit can directly determine whether to start the emergency test function based on the level state of the third pin (whether the third pin is connected to the external power supply). Therefore, regardless of whether the main switch is in the on state or the cut-off state, the processing circuit can quickly and effectively execute the emergency test mode. Therefore, the maintenance of the emergency lighting device can be more convenient to meet the needs of practical applications.

[0062] In addition, according to an embodiment of the present invention, the emergency lighting device further includes a mode control switch and a mode control circuit. The mode control circuit is connected to the processing circuit. The mode control switch is connected to the mode control circuit. The mode control switch controls the mode control circuit to generate a mode control signal to control the processing circuit to enter the transportation mode. The processing circuit enters a sleep state in the transportation mode. Through the mode control switch and the mode control circuit, the processing circuit can also execute the transportation mode to reduce the power consumption during the transportation process. Therefore, the emergency lighting device can provide more additional functions, making the emergency lighting device more convenient to use and more widely used.

[0063] In addition, according to an embodiment of the present invention, the emergency lighting device further includes a warning light, which is connected to the mode control circuit. The mode control circuit can generate a status signal and transmit it to the warning light, so that the warning light displays the status corresponding to the status signal in different warning modes. For example, fault status, charging status, transportation mode, emergency lighting mode, normal lighting mode, etc. Therefore, the functions of the emergency lighting device can be more complete to meet the needs of different applications.

[0064] Furthermore, according to the embodiment of the present invention, the design of the emergency lighting device is simple, so the desired effect can be achieved without significantly increasing the cost. Therefore, the practicality of the emergency lighting device can be greatly improved and can meet the trend of future development. From the above, it can be seen that the emergency lighting device with emergency test function according to the embodiment of the present invention can indeed achieve excellent technical effects.

[0065] See also Figure 4 , which is a schematic diagram of an emergency lighting device with an emergency test function according to a third embodiment of the present invention, and please also refer to Figure 2 As shown in the figure, the circuit structure of the emergency lighting device 1 is the same as that of the above-mentioned embodiment, so it will not be described in detail here.

[0066] Different from the aforementioned embodiment, a plurality of emergency lighting devices 1 (only two emergency lighting devices 1 are shown in the figure) share one emergency test switch TS, and the connection relationship between the emergency test switch TS and the input circuit 11 of each emergency lighting device 1 is the same as that of the first and second embodiments, so it will not be elaborated here.

[0067] Of course, this embodiment is only used for illustration rather than to limit the scope of the present invention. Equivalent modifications or changes made to the emergency lighting device with emergency test function according to this embodiment should still be included in the patent scope of the present invention.

[0068] See also Figure 5 and Figure 6 . Figure 5 FIG. 4 is another schematic diagram of an emergency lighting device with an emergency test function according to the third embodiment of the present invention. Figure 6 The schematic diagram of the circuit structure of the emergency lighting device with emergency test function of the third embodiment of the present invention. As shown in the figure, the emergency lighting device 1 includes an emergency test switch TS, an input circuit 11, an identification circuit 15, a processing circuit 12, an emergency circuit 13, a load 14, an electric shock protection circuit 16, a constant current circuit 17, an isolation step-down circuit 18, a mode control circuit 19, a mode control switch DS and a warning light AL. The above components are the same as those of the second embodiment, so they are not described in detail here.

[0069] The difference from the previous embodiment is the connection relationship of the input circuit 11 of the emergency lighting device 1. The first pin P1 is connected to the live output terminal Lt of the external power supply through the main switch WS. The second pin P2 is connected to the neutral output terminal Nt of the external power supply. The third pin P3 is connected to the live output terminal Lt. The fourth pin P4 is connected to the neutral output terminal Nt through the emergency test switch TS.

[0070] Similarly, the processing circuit 12 receives the emergency test signal Ts from the identification circuit 15 when the emergency test switch TS operates in the preset operation mode. At this time, if the emergency lighting device 1 is in the normal lighting mode, the processing circuit 12 transmits the control signal Cs to the constant current circuit 17 to turn off the constant current circuit 17. At the same time, the processing circuit 12 transmits the test control signal Es to the emergency circuit 13 to execute the emergency test mode and control the emergency circuit 13 to start the load 14.

[0071] Through the design of the emergency test switch TS, the processing circuit 12 can quickly and effectively execute the emergency test mode to test whether the emergency function is normal. Therefore, the reliability of the emergency lighting device 1 can be greatly improved.

[0072] In addition, the processing circuit 12 can directly determine whether to start the emergency test function according to the level state of the fourth pin P4 (whether the fourth pin P4 is connected to the external power supply). Therefore, no matter whether the main switch WS is in the on state or the off state, the processing circuit 12 can quickly and effectively execute the emergency test mode. Therefore, the maintenance of the emergency lighting device 1 can be more convenient to meet the needs of practical applications.

[0073] Of course, this embodiment is only used for illustration rather than to limit the scope of the present invention. Equivalent modifications or changes made to the emergency lighting device with emergency test function according to this embodiment should still be included in the patent scope of the present invention.

[0074] See also Figure 7 , which is a schematic diagram of an emergency lighting device with an emergency test function according to a fourth embodiment of the present invention, and please also refer to Figure 6 As shown in the figure, the circuit structure of the emergency lighting device 1 is the same as that of the above-mentioned embodiment, so it will not be described in detail here.

[0075] Different from the aforementioned embodiment, a plurality of emergency lighting devices 1 (only two emergency lighting devices 1 are shown in the figure) share one emergency test switch TS, and the connection relationship between the emergency test switch TS and the input circuit 11 of each emergency lighting device 1 is the same as that of the third embodiment, so it will not be elaborated here.

[0076] Of course, this embodiment is only used for illustration rather than to limit the scope of the present invention. Equivalent modifications or changes made to the emergency lighting device with emergency test function according to this embodiment should still be included in the patent scope of the present invention.

[0077] See also Figure 8 , which is a side view of an emergency lighting device with an emergency test function according to a fifth embodiment of the present invention, and please also refer to Figure 5 and Figure 6 . As shown in the figure, the emergency lighting device 1 also includes two end covers 21 and a tube body 22, and the two end covers 21 are respectively arranged at the two ends of the tube body 22. The input circuit 11, the identification circuit 15, the processing circuit 12, the emergency circuit 13, the load 14, the anti-electric shock circuit 16, the constant current circuit 17, the isolation step-down circuit 18 and the mode control circuit 19 can all be arranged in the tube body 22 or one of the end covers 21. The emergency lighting device 1 can be arranged on the lamp holder LB to be connected to an external power supply (such as AC power). As mentioned above, the emergency test switch TS can be an external normally closed switch, which can be arranged on one of the end covers 21.

[0078] The size of the end cap 21 is reduced, so that the tube body 22 of the emergency lighting device 1 can be extended. Therefore, the light efficiency of the emergency lighting device 1 can be greatly improved.

[0079] Of course, this embodiment is only used for illustration rather than to limit the scope of the present invention. Equivalent modifications or changes made to the emergency lighting device with emergency test function according to this embodiment should still be included in the patent scope of the present invention.

[0080] See also Fig. 9 , which is a first partial enlarged view of the emergency lighting device with emergency test function according to the fifth embodiment of the present invention, and please also refer to Figure 5 and Figure 6 As shown in the figure, each end cap 21 includes a cylindrical body 211 and a cover 212. The cover 212 is detachably disposed on the cylindrical body 211.

[0081] The first pin P1 and the second pin P2 of the input circuit 11 are disposed on one of the end caps 21. As mentioned above, the emergency circuit 13 includes a rechargeable battery 131 and a charging control circuit 132. The rechargeable battery 131 is detachably disposed in the cylindrical body 211.

[0082] In this way, when the rechargeable battery 131 is damaged, the user can directly remove the cover 212 of the end cover 21 and replace the rechargeable battery 131 so that the emergency lighting device can operate normally.

[0083] Of course, this embodiment is only used for illustration rather than to limit the scope of the present invention. Equivalent modifications or changes made to the emergency lighting device with emergency test function according to this embodiment should still be included in the patent scope of the present invention.

[0084] See also Fig.10 and Fig.11 , which are the second partial enlarged view and the third partial enlarged view of the emergency lighting device with emergency test function according to the fifth embodiment of the present invention, and please also refer to Figure 5 and Figure 6 As shown in the figure, the third pin P3 and the fourth pin P4 of the input circuit 11 are disposed on another end cover 21 . The mode control switch DS and the warning light AL can be disposed on this end cover 21 , and this end cover 21 can also include a color temperature adjustment switch CA, which is connected to the processing circuit 12 .

[0085] There is a light-transmitting groove GP around the mode control switch DS (the light-transmitting groove GP surrounds the mode control switch DS), and the warning light AL is arranged under the mode control switch DS. In this embodiment, the mode control switch DS is T-shaped, and the light-transmitting groove GP surrounds the mode control switch DS. This integrated design allows the light emitted by the warning light AL to directly pass through the light-transmitting groove GP, and can increase the light emitting area of ​​the warning light AL. Therefore, the user can quickly identify the status of the emergency lighting device 1 according to the light emitted by the warning light AL.

[0086] In addition, the user can adjust the color temperature of the emergency lighting device 1 by operating the color temperature adjustment switch CA to achieve the desired lighting effect. Therefore, the emergency lighting device 1 can provide more color temperatures, so the application of the emergency lighting device 1 can be more extensive and more flexible.

[0087] Of course, this embodiment is only used for illustration rather than to limit the scope of the present invention. Equivalent modifications or changes made to the emergency lighting device with emergency test function according to this embodiment should still be included in the patent scope of the present invention.

[0088] See also Fig.12 , which is a fourth partial enlarged view of the emergency lighting device with emergency test function according to the fifth embodiment of the present invention, and please also refer to Figure 5 and Figure 6. As shown in the figure, the load 14 can be arranged in the tube body 22. The load 14 can be a light source board, which includes a circuit board 141 and a plurality of light sources 142 (only a part of the light sources 142 is shown in the figure, and the number of the light sources 142 can be adjusted according to actual needs). The above-mentioned plurality of light sources 142 can be light-emitting diodes. In this embodiment, the circuit board 141 can be a flexible circuit board (flexure circuit board), and the tube body 22 can be a glass tube. The combination of the flexible circuit board and the glass tube can greatly reduce the difficulty of the manufacturing process of the emergency lighting device 1, so the labor cost can be reduced. Therefore, the manufacturing cost of the emergency lighting device 1 can be reduced.

[0089] In another embodiment, the circuit board 141 may be a printed circuit board or a rigid-flex board, and the tube body 22 may be made of other transparent or semi-conductive materials, such as plastic.

[0090] Of course, this embodiment is only used for illustration rather than to limit the scope of the present invention. Equivalent modifications or changes made to the emergency lighting device with emergency test function according to this embodiment should still be included in the patent scope of the present invention.

[0091] See also Fig.13 , which is a schematic diagram of a load of an emergency lighting device with an emergency test function according to the fifth embodiment of the present invention. As shown in the figure, the load 14 (light source board) may include a circuit board 141 and a plurality of light sources 142. Among them, the circuit board 141 may be a flexible circuit board. The upper surface of the circuit board 141 has an upper metal layer M1 and the lower surface of the circuit board 141 has a lower metal layer M2. The plurality of light sources 142 are arranged on the upper metal layer M1. The upper metal layer M1 and the lower metal layer M2 may be copper or other metal materials (such as gold, silver, etc.).

[0092] The upper metal layer M1 and the lower metal layer M2 may be formed on the upper surface and the lower surface of the circuit board 141 by electroplating or the like.

[0093] The upper metal layer M1 and the lower metal layer M2 have a heat conduction function, so the circuit board 141 with double-sided metal coating can achieve a better heat dissipation effect, thereby extending the service life of the load 14. In addition, the upper metal layer M1 and the lower metal layer M2 can also increase the hardness of the circuit board 141, so that the circuit board 141 with double-sided metal coating can also achieve a higher structural strength. Therefore, the circuit board 141 can be stably arranged in the tube body 22 without being easily bent.

[0094] Of course, this embodiment is only used for illustration rather than to limit the scope of the present invention. Equivalent modifications or changes made to the emergency lighting device with emergency test function according to this embodiment should still be included in the patent scope of the present invention.

[0095] In summary, according to an embodiment of the present invention, an emergency lighting device includes an emergency test switch, an input circuit, a processing circuit, an emergency circuit and a load. The input circuit has a first pin, a second pin, a third pin and a fourth pin. The first pin is connected to the live wire output terminal of an external power supply through a main switch. The second pin is connected to the live wire output terminal. The third pin is connected to the neutral wire output terminal of an external power supply through an emergency test switch. The fourth pin is connected to the neutral wire output terminal. The processing circuit is connected to the input circuit. The emergency circuit is connected to the processing circuit. The load is connected to the emergency circuit. The processing circuit receives an emergency test signal when the emergency test switch operates in a preset operation mode, and executes an emergency test mode to control the emergency circuit to start the load. Through the design of the emergency test switch, the processing circuit can quickly and effectively execute the emergency test mode to test whether the emergency function is normal. Therefore, the reliability of the emergency lighting device can be greatly improved.

[0096] Furthermore, according to an embodiment of the present invention, the processing circuit receives an emergency test signal when the emergency test switch operates in a preset operation mode, and executes the emergency test mode to control the emergency circuit to start the load. The preset operation mode is that the emergency test switch remains in the cut-off state for a preset time. Through the circuit design of the emergency lighting device and the start-up mechanism of the emergency test mode, the processing circuit can directly determine whether to start the emergency test function based on the level state of the third pin (whether the third pin is connected to the external power supply). Therefore, regardless of whether the main switch is in the on state or the cut-off state, the processing circuit can quickly and effectively execute the emergency test mode. Therefore, the maintenance of the emergency lighting device can be more convenient to meet the needs of practical applications.

[0097] In addition, according to an embodiment of the present invention, the emergency lighting device further includes a mode control switch and a mode control circuit. The mode control circuit is connected to the processing circuit. The mode control switch is connected to the mode control circuit. The mode control switch controls the mode control circuit to generate a mode control signal to control the processing circuit to enter the transportation mode. The processing circuit enters a sleep state in the transportation mode. Through the mode control switch and the mode control circuit, the processing circuit can also execute the transportation mode to reduce the power consumption during the transportation process. Therefore, the emergency lighting device can provide more additional functions, making the emergency lighting device more convenient to use and more widely used.

[0098] In addition, according to an embodiment of the present invention, the emergency lighting device further includes a warning light, which is connected to the mode control circuit. The mode control circuit can generate a status signal and transmit it to the warning light, so that the warning light displays the status corresponding to the status signal in different warning modes. For example, fault status, charging status, transportation mode, emergency lighting mode, normal lighting mode, etc. Therefore, the functions of the emergency lighting device can be more complete to meet the needs of different applications.

[0099] Furthermore, according to the embodiments of the present invention, the design of the emergency lighting device is simple, so the desired effect can be achieved without significantly increasing the cost. Therefore, the practicality of the emergency lighting device can be greatly improved and can meet the trend of future development.

[0100] It should be noted that, although the above embodiments have been described in this article, the scope of patent protection of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, changes and modifications made to the embodiments described herein, or equivalent structures or equivalent process changes made using the contents of the present specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields are all included in the scope of protection of the patent of the present invention.

Claims

1. An emergency lighting device with emergency test function, characterized in that: include: Emergency test switch; An input circuit having a first pin, a second pin, a third pin and a fourth pin, wherein the first pin is connected to a live line output terminal of an external power supply through a main switch, the second pin is connected to the live line output terminal, the third pin is connected to a neutral line output terminal of the external power supply through the emergency test switch, and the fourth pin is connected to the neutral line output terminal; a processing circuit connected to the input circuit; an emergency circuit connected to the processing circuit; as well as A load is connected to the emergency circuit.

2. The emergency lighting device with emergency test function according to claim 1, characterized in that: The input circuit drives the load to perform a normal lighting mode when the external power source is in a normal state and the main switch is turned on, and the processing circuit controls the emergency circuit to enter a charging state.

3. The emergency lighting device with emergency test function according to claim 1, characterized in that: The processing circuit receives an emergency test signal when the emergency test switch operates in a preset operation mode, and executes an emergency test mode to control the emergency circuit to start the load.

4. The emergency lighting device with emergency test function as claimed in claim 3, characterized in that: The preset operation mode is that the emergency test switch remains in the cut-off state within a preset time.

5. The emergency lighting device with emergency test function according to claim 1, characterized in that: It also includes a mode control switch and a mode control circuit, wherein the mode control circuit is connected to the processing circuit, and the mode control switch is connected to the mode control circuit. The mode control switch is used to control the mode control circuit to generate a mode control signal to control the processing circuit to enter a transportation mode, and the processing circuit enters a sleep state in the transportation mode.

6. An emergency lighting device with emergency test function, characterized in that: include: Emergency test switch; An input circuit having a first pin, a second pin, a third pin and a fourth pin, wherein the first pin is connected to a live line output terminal of an external power supply through a main switch, the second pin is connected to a neutral line output terminal of the external power supply, the third pin is connected through the live line output terminal, and the fourth pin is connected to the neutral line output terminal through the emergency test switch; a processing circuit connected to the input circuit; an emergency circuit connected to the processing circuit; as well as A load is connected to the emergency circuit.

7. The emergency lighting device with emergency test function according to claim 6, characterized in that: The input circuit drives the load to perform a normal lighting mode when the external power source is in a normal state and the main switch is turned on, and the processing circuit controls the emergency circuit to enter a charging state.

8. The emergency lighting device with emergency test function according to claim 6, characterized in that: The processing circuit receives an emergency test signal when the emergency test switch operates in a preset operation mode, and executes an emergency test mode to control the emergency circuit to start the load.

9. The emergency lighting device with emergency test function according to claim 8, characterized in that: The preset operation mode is that the emergency test switch remains in the cut-off state within a preset time.

10. The emergency lighting device with emergency test function according to claim 6, characterized in that: It also includes a mode control switch and a mode control circuit, wherein the mode control circuit is connected to the processing circuit, and the mode control switch is connected to the mode control circuit. The mode control switch is used to control the mode control circuit to generate a mode control signal to control the processing circuit to enter a transportation mode, and the processing circuit enters a sleep state in the transportation mode.

Images