Intelligent power supply conversion device for emergency lights

Abstract

The present invention discloses an intelligent power supply conversion device for an emergency light, comprising: a battery module, a main circuit board and a connector; the battery board in the battery module is connected to the main circuit board through a connector; the LED control port of the battery board is connected to the LED lamp beads of the LED emergency light; the input interface of the battery board is connected to the control pin of the main circuit board, and whether the battery module is connected is controlled by controlling the high and low states of the level of the input interface; when the control input interface is at a high level, the main circuit board is in a power collection mode, and when the control input interface is at a low level, the main circuit board is in a self-power mode. This scheme is to determine whether to enter the power collection working mode and the self-power working mode according to whether the battery module is connected by setting the battery board and the main circuit board and the connector therebetween. When the battery module is connected, the lamp switches to the self-power working mode; when the battery module is pulled out, the lamp automatically switches to the power collection working mode. The lamp can adapt to both the power collection and self-power systems at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of emergency light control, and in particular to an intelligent power supply conversion device for an emergency light. Background Art

[0002] Emergency lights are a general term for lamps used for emergency lighting. After the normal lighting power is cut off, the emergency lights automatically start lighting to guide people to evacuate. The control circuit of the emergency light generally includes a mains power conversion module and a main control module. The mains power conversion module is used to convert 220V AC mains power into multiple DC voltages, such as 5V or 3.7V power supply voltage to power the main control module. The main control module is electrically connected to the light source load, and different loads correspond to different output currents. Different output currents will affect the output ripple and efficiency of the power supply voltage of the main control module.

[0003] However, the existing emergency lights generally use special lamps that can only be used for emergency lighting, and are connected to the power collection system and the self-power system at the same time. Summary of the invention

[0004] The present invention provides an intelligent power supply conversion device for an emergency light to solve the above problems existing in the prior art.

[0005] The present invention provides an intelligent power supply conversion device for an emergency light, the intelligent power supply conversion device comprising: a battery module, a main circuit board and a connector; the battery board in the battery module is connected to the main circuit board through the connector; the LED control port of the battery board is connected to the LED lamp bead of the LED emergency light;

[0006] The input interface of the battery board is connected to the control pin of the main circuit board. Whether the battery module is connected is controlled by controlling the high and low states of the level of the input interface. When the control input interface is at a high level, the main circuit board is in the power collection mode, and when the control input interface is at a low level, the main circuit board is in the self-power mode.

[0007] Preferably, the connector includes at least three interfaces; the first interface connects the LED control port and LED lamp beads of the battery panel; the second interface connects the control pin of the main circuit board with the input interface of the battery panel, and the third interface connects the battery port of the main circuit board with the battery end of the battery panel.

[0008] Preferably, the solar panel comprises:

[0009] Battery BT2, fuse F1, transistor Q2, resistor R3, resistor R4 and diode D9;

[0010] The positive electrode of the battery BT2 is connected to one end of the fuse F1, the other end of the fuse F1 is connected to the emitter of the transistor Q2, the collector of the transistor Q2 is connected to the positive electrode of the diode D9, the cathode of the diode D9 is the LED control port LED-M of the output battery panel; the emitter of the transistor Q2 is the battery end of the battery panel;

[0011] The base of transistor Q2 is connected to one end of resistor R3, and the other end of resistor R3 is the input interface L-CON of the solar panel;

[0012] The other end of the resistor R3 is connected to one end of the resistor R4, and the other end of the resistor R4 is connected to the negative electrode of the battery BT2; the negative electrode of the battery BT2 is grounded.

[0013] Preferably, the control pin of the main circuit board U4 is pin 13, and the battery port of the main circuit board U4 is pin 6 and pin 7; pin 6 and pin 7 are grounded through capacitor C16;

[0014] The two ends of the resistor R3 are respectively pin 1 of the resistor R3 and pin 2 of the resistor R3, and the two ends of the resistor R4 are respectively pin 1 of the resistor R4 and pin 2 of the resistor R4;

[0015] Pin 1 of the resistor R3 is connected to the base of the transistor Q2, and pin 2 of the resistor R3 is connected to pin 13 of the main circuit board U4 through a connector; pin 1 of the resistor R4 is connected to the negative electrode of the battery, and pin 2 of the resistor R4 is connected to pin 13 of the main circuit board U4 through a connector;

[0016] The LED control port LED-M is connected to the positive poles of several LED lamp beads through a connector.

[0017] Preferably, in the main power state, the pin 13 of the main circuit board U4 is set as the input detection pin. When the battery module is disconnected, the circuit of the battery board is in a disconnected state, the pin 13 of the main circuit board U4 is disconnected at the same time, the input interface L-CON of the battery board becomes an input high level, and the main circuit board U4 is converted into a collector mode;

[0018] Connect the battery module, the input interface L-CON of the battery board is connected to the ground through the resistor R4, and the pin 13 of the main circuit board U4 becomes a low level. At this time, the circuit board U4 automatically switches to the self-powering mode.

[0019] Preferably, it also includes: a control device, which is configured to set at least one charging parameter and / or charging mode, and controls the process of charging the battery module based on the set charging parameter and / or the set charging mode; and also includes at least a first terminal, a second terminal and a third terminal for electrically connecting two-pole status indicator lights, wherein the control device is configured to detect which two of the first terminal, the second terminal and the third terminal the two-pole status indicator lights are connected to, and is configured to set the at least one charging parameter and / or the charging mode based on the detection result.

[0020] Preferably, the control device is configured to distinguish between at least two connection options for connecting the two-pole status indicator light to two of the first terminal, the second terminal and the third terminal, and is configured to set the at least one charging parameter and / or the charging mode based on an assignment / table, which assigns a predetermined charging parameter and / or a predetermined charging mode to each of the two connection options.

[0021] Preferably, the first terminal, the second terminal and the third terminal are configured to connect light emitting diodes as the two-pole status indicator lights;

[0022] The control device is configured to detect the polarity of the connected light emitting diode and to set the at least one charging parameter and / or the charging mode also based on the detected polarity.

[0023] Preferably, the control device is configured to detect whether the short circuit is applied between the first terminal and the second terminal, between the first terminal and the third terminal, or between the second terminal and the third terminal;

[0024] The control device is configured to start a test mode, switch between a normally open mode and a normally open mode, switch between a first battery discharge duration and a second battery discharge duration, or start a charging process of the energy storage device when the short circuit is applied.

[0025] The present invention also provides an emergency light, which includes the above-mentioned intelligent power supply conversion device for the emergency light.

[0026] Compared with the prior art, the present invention has the following advantages:

[0027] The present invention provides an intelligent power supply conversion device for an emergency light, comprising: a battery module, a main circuit board and a connector; the battery board in the battery module is connected to the main circuit board through a connector; the LED control port of the battery board is connected to the LED lamp beads of the LED emergency light; the input interface of the battery board is connected to the control pin of the main circuit board, and whether the battery module is connected is controlled by controlling the high and low states of the level of the input interface; when the control input interface is at a high level, the main circuit board is in a power collection mode, and when the control input interface is at a low level, the main circuit board is in a self-power mode. This scheme is to determine whether to enter the power collection working mode and the self-power working mode according to whether the battery module is connected by setting the battery board and the main circuit board and the connector therebetween. Therefore, the intelligent power supply conversion circuit used by the emergency light of this embodiment can realize automatic identification and conversion of power collection / self-power. When the battery module is connected, the lamp is converted to the self-power working mode; when the battery module is pulled out, the lamp is automatically converted to the power collection working mode. The lamp can adapt to both power collection and self-power systems at the same time.

[0028] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings.

[0029] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0031] Figure 1 It is a structural schematic diagram of an intelligent power supply conversion device for an emergency light in an embodiment of the present invention;

[0032] Figure 2 A circuit diagram of a battery panel in an intelligent power conversion device for an emergency light in an embodiment of the present invention;

[0033] Figure 3 The present invention is a circuit diagram of a main circuit board in an intelligent power supply conversion device for an emergency light in an embodiment of the present invention. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0035] The embodiment of the present invention provides an intelligent power supply conversion device for emergency lights, please refer to Figure 1The intelligent power supply conversion device includes: a battery module, a main circuit board and a connector; the battery board in the battery module is connected to the main circuit board through a connector; the LED control port of the battery board is connected to the LED lamp bead of the LED emergency light;

[0036] The input interface of the battery board is connected to the control pin of the main circuit board. Whether the battery module is connected is controlled by controlling the high and low states of the level of the input interface. When the control input interface is at a high level, the main circuit board is in the power collection mode, and when the control input interface is at a low level, the main circuit board is in the self-power mode.

[0037] The working principle and beneficial effects of the above technical solution are as follows: the solution adopted in this embodiment is to determine whether to enter the power collection working mode and the self-power working mode according to whether the battery module is connected by setting the battery board and the main circuit board and the connector between the two. Therefore, the intelligent power supply conversion circuit used by the emergency light of this embodiment can realize the automatic identification and conversion of power collection / self-power. When the battery module is connected, the lamp switches to the self-power working mode; when the battery module is unplugged, the lamp automatically switches to the power collection working mode. The lamp can adapt to both power collection and self-power systems at the same time.

[0038] In another embodiment, the connector includes at least three interfaces; the first interface connects the LED control port and LED lamp beads of the battery panel; the second interface connects the control pin of the main circuit board with the input interface of the battery panel, and the third interface connects the battery port of the main circuit board with the battery end of the battery panel.

[0039] The working principle and beneficial effects of the above technical solution are as follows: the solution adopted in this embodiment is to connect the battery panel to the main circuit board through a connector with at least three interfaces. Generally, the connector can adopt a 4P connector. When the battery module is connected, the lamp switches to the self-powered working mode; when the battery module is unplugged, the lamp automatically switches to the power collection working mode. The lamp can adapt to both power collection and self-powered systems.

[0040] In another embodiment, please refer to Figure 2 and Figure 3 , the battery panel comprises:

[0041] Battery BT2, fuse F1, transistor Q2, resistor R3, resistor R4 and diode D9;

[0042] The positive electrode of the battery BT2 is connected to one end of the fuse F1, the other end of the fuse F1 is connected to the emitter of the transistor Q2, the collector of the transistor Q2 is connected to the positive electrode of the diode D9, the cathode of the diode D9 is the LED control port LED-M of the output battery panel; the emitter of the transistor Q2 is the battery end of the battery panel;

[0043] The base of transistor Q2 is connected to one end of resistor R3, and the other end of resistor R3 is the input interface L-CON of the solar panel;

[0044] The other end of the resistor R3 is connected to one end of the resistor R4, and the other end of the resistor R4 is connected to the negative electrode of the battery BT2; the negative electrode of the battery BT2 is grounded.

[0045] The control pin of the main circuit board U4 is pin 13, and the battery port of the main circuit board U4 is pin 6 and pin 7; pin 6 and pin 7 are grounded through capacitor C16;

[0046] The two ends of the resistor R3 are respectively pin 1 of the resistor R3 and pin 2 of the resistor R3, and the two ends of the resistor R4 are respectively pin 1 of the resistor R4 and pin 2 of the resistor R4;

[0047] Pin 1 of the resistor R3 is connected to the base of the transistor Q2, and pin 2 of the resistor R3 is connected to pin 13 of the main circuit board U4 through a connector; pin 1 of the resistor R4 is connected to the negative electrode of the battery, and pin 2 of the resistor R4 is connected to pin 13 of the main circuit board U4 through a connector;

[0048] The LED control port LED-M is connected to the positive poles of several LED lamp beads through a connector.

[0049] The working principle and beneficial effects of the above technical solution are as follows: the solution adopted in this embodiment is that the 2nd pin of the resistor R3 and the 2nd pin of R4 are connected to the 13th pin of the main circuit board (MCU) U4, the 2nd pin of R4 and the negative electrode of the battery are grounded together, the battery is connected to the 6th and 7th pins of the main circuit board (MCU) U4 and grounded through the capacitor C16, and the LED-M is connected to the positive electrode of the lamp bead LED9 / LED10 / LED11 / LED12. The main circuit board is connected to the battery board through a 4P connector.

[0050] The lamps using this circuit can be connected to the power collection system or the self-power system by adopting the solution provided in this embodiment. Flexible configuration in engineering can reduce the stocking cycle and stocking quantity. One lamp can meet the needs of two systems and improve the utilization efficiency of the company's production, warehousing and other links.

[0051] In another embodiment, in the main power state, the pin 13 of the main circuit board U4 is set as the input detection pin. When the battery module is disconnected, the circuit of the battery board is disconnected, and the pin 13 of the main circuit board U4 is disconnected at the same time. The input interface L-CON of the battery board becomes an input high level, and the main circuit board U4 is converted into a collector mode.

[0052] Connect the battery module, the input interface L-CON of the battery board is connected to the ground through the resistor R4, and the pin 13 of the main circuit board U4 becomes a low level. At this time, the circuit board U4 automatically switches to the self-powering mode.

[0053] The working principle and beneficial effects of the above technical solution are as follows: the solution adopted in this embodiment is that in the main power state, pin 13 of U4 is set as the input detection pin. When the battery module is disconnected, pin 13 of U4 is also disconnected at the same time, becoming an input high level, and U4 is converted to the collector mode. When the battery module is connected, pin 13 of U4 is connected to the ground through R4, and pin 13 of U4 becomes a low level. At this time, U4 automatically converts to the self-power mode. The intelligent power supply conversion circuit used by the emergency light can realize automatic identification and conversion of collector / self-power. When the battery module is connected, the lamp is converted to the self-power working mode; when the battery module is unplugged, the lamp automatically converts to the collector working mode. The lamp can adapt to both collector and self-power systems at the same time.

[0054] In another embodiment, it also includes: a control device, which is configured to set at least one charging parameter and / or charging mode, and control the process of charging the battery module based on the set charging parameter and / or the set charging mode; and also includes at least a first terminal, a second terminal and a third terminal for electrically connecting two-pole status indicator lights, wherein the control device is configured to detect which two of the first terminal, the second terminal and the third terminal the two-pole status indicator lights are connected to, and is configured to set the at least one charging parameter and / or the charging mode based on the detection result.

[0055] In another embodiment, the control device is configured to distinguish between at least two connection options for connecting the two-pole status indicator light to two of the first terminal, the second terminal and the third terminal, and is configured to set the at least one charging parameter and / or the charging mode based on an assignment / table that assigns a predetermined charging parameter and / or a predetermined charging mode to each of the two connection options.

[0056] In another embodiment, the first terminal, the second terminal and the third terminal are configured to connect light emitting diodes as the two-pole status indicator lights;

[0057] The control device is configured to detect the polarity of the connected light emitting diode and to set the at least one charging parameter and / or the charging mode also based on the detected polarity.

[0058] In another embodiment, the control device is configured to detect whether the short circuit is applied between the first terminal and the second terminal, between the first terminal and the third terminal, or between the second terminal and the third terminal;

[0059] The control device is configured to start a test mode, switch between a normally open mode and a normally open mode, switch between a first battery discharge duration and a second battery discharge duration, or start a charging process of the energy storage device when the short circuit is applied.

[0060] The working principle and beneficial effects of the above technical solution are as follows: In an emergency lighting system, an emergency converter (sometimes also referred to as a converter, ballast or driver device) is used to provide a supply current to an emergency lighting device for a predetermined time in the event of a mains power failure. In the event of a mains power failure, the energy stored in an energy storage device (such as a rechargeable battery) is used to maintain or activate the current supply source for a rated service time. The rated service time defines the battery discharge duration during which the emergency converter unit is required to drive the emergency light with a predetermined drive current. The predetermined drive current is the minimum load current that enables the connected light to complete its task of providing an emergency light level for a rated service time.

[0061] In many systems, the functionality of the emergency lighting system must be tested at predefined intervals by performing functional tests, and the functionality must be continuously monitored during the operation of the emergency equipment using built-in test equipment. After such tests or after the equipment experiences a power failure, the energy storage device must be recharged.

[0062] The charging parameters (charging current and / or voltage) and the charging mode including the charging voltage characteristics and / or the charging current characteristics depend on the type of energy storage device and sometimes on the operating conditions. Typically, NiCd batteries are charged with a constant current, while NiMh batteries benefit from pulse charging.

[0063] In order to cover different types of batteries and applications, the converter unit can be designed to charge using different charging parameters and / or charging modes, where the charging parameters and / or modes are selected by the user by operating a jumper switch or DIP switch built into the converter unit or connected to the converter unit via terminals of the interface.

[0064] However, the additional switches and terminals increase the overall cost of the converter unit and involve considerable space at the housing assembly of the emergency converter unit equipment.

[0065] The solution adopted in this embodiment is to select at least one charging parameter and / or charging mode by connecting the two poles of the status indicator light to two terminals among the terminals S1 to S3, wherein the first charging current of the constant current charging mode is assigned to the first connection variant, wherein the status indicator light is connected to the terminals S1 and S2, the second charging current of the constant current charging mode is assigned to the second connection variant, wherein the status indicator light is connected to the terminals S1 and S3, and the pulse current charging mode is assigned to the third connection variant, wherein the status indicator light is connected to the terminals S2 and S3.

[0066] The status indicator light is selectively connected to two of the terminals S1 to S3 by the manufacturer or the user in order to adapt the charging process to the type of battery connected to the terminals B1, B2. The control device stores the charging current and the charging mode to each connection variant, determines the connection variant by detecting the load or the predetermined resistor between the terminals S1 and S2, the terminals S1 and S3, and the terminals S2 and S3 after the mains power is applied to the input terminals L, N and before the charging process is started, and sets the charging current and the charging mode according to the determined connection variant. In addition, based on the determined connection variant, the control device outputs a signal / voltage to the terminals S1 and S2, the terminals S1 and S3, or the terminals S2 and S3 to drive the status indicator light to indicate the charging process or battery fullness as described above during normal operation.

[0067] A switch (normally open contact) with which the user starts a test mode can be connected in parallel to a status indicator light, wherein a control device detects whether a short circuit is applied between terminals S1 to S3 and starts a test mode when a short circuit is detected, to which the status indicator light is connected, in which test mode a power failure is simulated and a battery is used to supply the lighting body with a predetermined drive current for a predetermined time (battery discharge duration).

[0068] The detection may be performed by a microcontroller of the control device or by a discrete circuit of the control device. An example of a detection circuit of the control device with which a short circuit connected in parallel to the status indicator light and a connection of the status indicator light connected to terminals S1 and S3 or terminals S2 and S3 may be detected.

[0069] A first power supply voltage and a second power supply voltage are applied to the terminals, respectively, and a first signal for detecting whether the status indicator light is connected to the terminals S1 and S3 is applied to the terminals, or a second signal for detecting whether the status indicator light is connected to the terminals S2 and S3 is applied to the terminals. In the case where the first signal is applied to the terminals from, for example, a microcontroller of a control device, the transistor Q1 is turned on, the transistor Q4 is turned off, and when the status indicator light is not connected to the terminals S1 and S3, the Zener diode is turned on, the current passes through the Zener diode and the resistor, and the voltage drop across the resistor is detected by the microcontroller at the terminals. On the other hand, when the status indicator light is connected to the terminals S1 and S3, the diode is not turned on, and the voltage drop across the resistor becomes zero. In addition, when the switch connected in parallel to the status indicator light is operated by the user, so that a short circuit is applied between the terminals S1 and S3, the transistor Q3 is turned off, and the signal detected by the microcontroller at the terminals is switched from a low voltage level to a high voltage level.

[0070] In the case where the second signal is applied to the terminals, the transistor Q1 is turned on, the transistor Q3 is turned off, and when the status indicator light is not connected to the terminals S2 and S3, the diode is conductive, the current passes through the diode and the resistor, and the voltage drop across the resistor is detected by the microcontroller at the terminals. On the other hand, when the status indicator light is connected to the terminals S1 and S3, the diode is not conductive, and the voltage drop across the resistor becomes zero. In addition, when the switch connected in parallel to the status indicator light is operated by the user, so that a short circuit is applied between the terminals S2 and S3, the transistor is turned off, and the signal detected by the microcontroller at the terminals is switched from a low voltage level to a high voltage level. The signal output by the terminal is evaluated by the microcontroller to control the charging process and start the test mode, respectively.

[0071] The user connects the status indicator wires and the switch wires to terminals S1 to S3, which can be screw terminals or spring clips.

[0072] The status indicator and the switch can be connected through one of three adapters, each of which has three pins for connecting terminals S1 to S3 on one side of the adapter and four terminals for connecting two connecting wires of the switch and two connecting wires of the status indicator on the other side of the adapter. In the adapter, the four terminals are connected to the three pins according to the first connection variant, the second connection variant or the third connection variant. In addition, the terminals for the second switch can be provided on the other side, and the adapter can be configured to connect the second switch in parallel to the status indicator as described above. With the adapter, incorrect connection can be prevented, wherein the correct adapter is recommended by the manufacturer or sold together with the battery.

[0073] Alternatively, a single adapter may provide the tree connection variants via a DIP switch built into the adapter, where the DIP switch is operated by a user to connect pins and four or more terminals to establish one of three connection variants.

[0074] The number of selectable charging parameters and / or charging modes can be increased by using a light emitting diode (LED) as a two-pole status indicator, wherein the control means is then configured to detect the polarity of the connected light emitting diode and to detect which two of the terminals S1 and S2, terminals S1 and S3, and terminals S2 and S3 the light emitting diode is connected to, and is configured to set the charging parameters and / or charging mode based on a table indicating the charging parameters and / or charging mode to each combination of polarity and connection variants. The polarity can also be changed / set by a DIP switch.

[0075] In another embodiment, this embodiment provides an emergency light, including the above-mentioned intelligent power supply conversion device for the emergency light.

[0076] The working principle and beneficial effects of the above technical solution are as follows: The solution adopted in this embodiment is the intelligent power supply conversion circuit used by the emergency light, which can realize automatic identification and conversion of power collection / self-power. When the battery module is connected, the lamp switches to the self-power working mode; when the battery module is unplugged, the lamp automatically switches to the power collection working mode. The lamp can adapt to both power collection and self-power systems. In addition, lamps using this circuit can be connected to the power collection system or the self-power system. Flexible configuration in engineering reduces stocking cycle and stocking quantity. And a lamp can meet the needs of two systems and improve the utilization efficiency of the company's production, warehousing and other links.

[0077] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An intelligent power supply conversion device for emergency lighting, characterized in that: include: Battery module, main circuit board and connector; the battery board in the battery module is connected to the main circuit board through the connector; the LED control port of the battery board is connected to the LED lamp beads of the LED emergency light; The input interface of the battery board is connected to the control pin of the main circuit board. Whether the battery module is connected is controlled by the high and low state of the control input interface. When the control input interface is at a high level, the main circuit board is in the power collection mode, and when the control input interface is at a low level, the main circuit board is in the self-power mode. The connector includes at least three interfaces; the first interface connects the LED control port of the battery panel and the LED lamp beads of the LED emergency light; the second interface connects the control pin of the main circuit board and the input interface of the battery panel; the third interface connects the battery port of the main circuit board and the battery end of the battery panel; The battery panel comprises: Battery BT2, fuse F1, transistor Q2, resistor R3, resistor R4 and diode D9; The positive electrode of the battery BT2 is connected to one end of the fuse F1, the other end of the fuse F1 is connected to the emitter of the transistor Q2, the collector of the transistor Q2 is connected to the positive electrode of the diode D9, the cathode of the diode D9 is the LED control port LED-M of the output battery panel; the emitter of the transistor Q2 is the battery end of the battery panel; The base of transistor Q2 is connected to one end of resistor R3, and the other end of resistor R3 is the input interface L-CON of the solar panel; The other end of the resistor R3 is connected to one end of the resistor R4, and the other end of the resistor R4 is connected to the negative electrode of the battery BT2; the negative electrode of the battery BT2 is grounded; The control pin of the main circuit board U4 is pin 13, and the battery port of the main circuit board U4 is pin 6 and pin 7; pin 6 and pin 7 are grounded through capacitor C16; The two ends of the resistor R3 are respectively pin 1 of the resistor R3 and pin 2 of the resistor R3, and the two ends of the resistor R4 are respectively pin 1 of the resistor R4 and pin 2 of the resistor R4; Pin 1 of the resistor R3 is connected to the base of the transistor Q2, and pin 2 of the resistor R3 is connected to pin 13 of the main circuit board U4 through a connector; pin 1 of the resistor R4 is connected to the negative electrode of the battery, and pin 2 of the resistor R4 is connected to pin 13 of the main circuit board U4 through a connector; The LED control port LED-M is connected to the positive poles of several LED lamp beads through a connector; In the main power state, pin 13 of the main circuit board U4 is set as the input detection pin. When the battery module is disconnected, the circuit of the battery board is disconnected, and pin 13 of the main circuit board U4 is disconnected at the same time. The input interface L-CON of the battery board becomes an input high level, and the main circuit board U4 is converted into a collector mode. Connect the battery module, the input interface L-CON of the battery board is connected to the ground through the resistor R4, and the pin 13 of the main circuit board U4 becomes a low level. At this time, the main circuit board U4 automatically switches to the self-power mode.

2. The intelligent power supply conversion device for emergency lights according to claim 1, characterized in that: Also includes: A control device, the control device is configured to set at least one charging parameter and / or charging mode, and control the process of charging the battery module based on the set charging parameter and / or the set charging mode; and also includes at least a first terminal, a second terminal and a third terminal for electrically connecting two-pole status indicator lights, wherein the control device is configured to detect which two of the first terminal, the second terminal and the third terminal the two-pole status indicator lights are connected to, and is configured to set the at least one charging parameter and / or the charging mode based on the detection result.

3. The intelligent power supply conversion device for emergency lights according to claim 2, characterized in that: The control device is configured to distinguish between at least two connection options for connecting the two-pole status indicator light to two of the first terminal, the second terminal and the third terminal, and is configured to set the at least one charging parameter and / or the charging mode based on an assignment / table that assigns a predetermined charging parameter and / or a predetermined charging mode to each of the two connection options.

4. The intelligent power supply conversion device for emergency lights according to claim 2, characterized in that: The first terminal, the second terminal and the third terminal are configured to connect light emitting diodes as the two-pole status indicator lights; The control device is configured to detect the polarity of the connected light emitting diode and to set the at least one charging parameter and / or the charging mode also based on the detected polarity.

5. The intelligent power supply conversion device for emergency lights according to claim 2, characterized in that: The control device is configured to detect whether the short circuit is applied between the first terminal and the second terminal, between the first terminal and the third terminal, or between the second terminal and the third terminal; The control device is configured to start a test mode, switch between a normally open mode and a normally open mode, switch between a first battery discharge duration and a second battery discharge duration, or start a charging process of an energy storage device when the short circuit is applied.

6. An emergency light, characterized in that: An intelligent power supply conversion device for an emergency light comprising the device described in any one of claims 1 to 5.

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