Power supply driving device, emergency power supply driving device and dual-power-supply driving device

By using a plug-in power drive device with a plug-in design, the problems of long assembly cycles and stability caused by cable connections in emergency lighting systems are solved, enabling rapid and low-cost integration of emergency drive functions and adapting to different power specifications.

CN223942866UActive Publication Date: 2026-02-24DONGGUAN ENGINE ELECTRONICS CO LTD
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Patent Information

Application Number
CN202520335146.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2026-02-24
Estimated Expiration
2035-02-27

AI Technical Summary

Technical Problem

In existing emergency lighting systems, the coordinated control of conventional lighting drivers and emergency power supply drivers requires additional cabling, resulting in long assembly cycles and increased costs. Furthermore, cable connections are susceptible to environmental corrosion and mechanical vibration, which can easily lead to poor contact and unstable signal transmission.

Method used

The device employs a plug-in power drive unit. Through the plug-in design of the first and second conversion connectors, the physical connection between the main drive circuit and the emergency drive circuit can be achieved without cables. The modular design allows the emergency drive module to be independently packaged and adapted to emergency power supplies with different power/voltage specifications.

Benefits of technology

It enables rapid assembly, reduces assembly technical difficulty, reduces product inventory, saves costs and funds, and improves system stability and reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a power supply driving device, an emergency power supply driving device and a dual power supply driving device, wherein the power supply driving device comprises a first base body, and the first base body is provided with a first driving circuit, a first port, a second port and a first conversion connector; the emergency power supply driving device comprises a second base body, and a second driving circuit, a second conversion connector and an emergency power supply are arranged on the second base body; the first conversion connector is connected with or separated from the second conversion connector in a plugging manner. According to the plug-in type dual-power-supply driving device provided by the utility model, through the plug-in design of the first conversion connector and the second conversion connector, the physical connection of the main driving circuit and the emergency driving circuit can be completed without a cable, and the conventional wiring process is replaced by the plug-in operation, so that the assembly time is effectively saved, and the difficulty of the assembly technology is reduced; in addition, according to the design, emergency modification can be completed by a third party, product inventory is greatly reduced, and cost and funds are saved.
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Description

Technical Field

[0001] This utility model relates to the field of power drive technology, and in particular to a power drive device, an emergency power drive device, and a dual power drive device. Background Technology

[0002] In emergency lighting systems, the coordinated control of conventional lighting drivers and emergency power drivers is a key technology for achieving rapid switching during power outages. Currently, existing technologies typically involve physically integrating the emergency driver module with the conventional driver module via cable connections. For example, the output of the emergency power supply is connected in parallel with the input of the conventional lighting driver. However, this approach requires additional cabling, leading to longer assembly cycles, increased costs, higher technical requirements for wiring personnel, and a higher risk of circuit failures due to poor contact. Furthermore, it increases inventory burden for manufacturers. Additionally, converting ordinary lamp drivers into emergency lights increases costs and working hours. Moreover, cable connections are susceptible to environmental corrosion or mechanical vibration, potentially leading to increased contact resistance and unstable signal transmission after prolonged use, requiring frequent maintenance.

[0003] Therefore, improvements to the power supply driver are needed. Utility Model Content

[0004] The purpose of this invention is to provide a power drive device, an emergency power drive device, and a dual power drive device that can be quickly installed with emergency drive function without additional cables.

[0005] To achieve the above objectives, this utility model provides a plug-in power drive device, which includes a first base, on which a first drive circuit, a first port, a second port and a first conversion connector are disposed.

[0006] The first port is used for electrical connection to an external main power supply, and the second port is used for electrical connection to a load;

[0007] The first adapter connector includes a first connection end and a second connection end. The first connection end is electrically connected to the input and output ends, the first port, and the second port of the first drive circuit. The second connection end is used to connect or disconnect with the third connection end of the second adapter connector in a plug-in manner. The second adapter connector is located on a second base independent of the first base. The second adapter connector is also electrically connected to a second drive circuit located on the second base through a fourth connection end. The second drive circuit is electrically connected to an emergency power supply.

[0008] When the second connection terminal is in the first state of being connected to the third connection terminal: the second port is simultaneously connected to the output terminal of the first driving circuit and the output terminal of the second driving circuit, and the input terminal of the first driving circuit is selectively electrically connected to or disconnected from the first port according to the supply status of the main power supply.

[0009] When the second connection terminal is in a second state separated from the third connection terminal: the second port remains connected to the output terminal of the first driving circuit, and the first port remains connected to the input terminal of the first driving circuit.

[0010] Preferably, when the second connection end is in the first state, the first port is also electrically connected to the charging port of the second drive circuit for charging the emergency power supply by means of the first conversion connector and the second conversion connector.

[0011] Preferably, the first adapter connector is provided with a plurality of first interfaces located at the first connection end and a plurality of second interfaces located at the second connection end, wherein the first interfaces and the second interfaces correspond one-to-one, and a corresponding pair of first interfaces and second interfaces are electrically connected.

[0012] Preferably, when the second connection terminal is in the second state, a jumper is inserted into the second connection terminal. The jumper is used to connect the two second interfaces on the first conversion connector that correspond to the conductive path between the output terminal and the second port of the first driving circuit, and to connect the two second interfaces on the first conversion connector that correspond to the conductive path between the input terminal and the first port of the second driving circuit.

[0013] This utility model also provides a plug-in emergency power supply drive device, which includes a second base and a second drive circuit and a second conversion connector located on the second base. The input terminal of the second drive circuit is electrically connected to the emergency power supply. The second conversion connector includes a third connection terminal and a fourth connection terminal. The fourth connection terminal is electrically connected to the input terminal of the second drive circuit. The third connection terminal is connected to or separated from the second connection terminal of the first conversion connector in a plug-in manner. The first conversion connector is located on a first base independent of the second base, and the first conversion connector also includes a first connection terminal. The first base is also provided with a first drive circuit, a first port, and a second port. The first port is used to electrically connect to an external main power supply, and the second port is used to electrically connect to a load.

[0014] The first connection terminal is electrically connected to the input and output terminals of the first driving circuit, the first port, and the second port;

[0015] When the third connection terminal is in the first state of being connected to the second connection terminal: the second port is simultaneously connected to the output terminal of the first driving circuit and the output terminal of the second driving circuit, and the input terminal of the first driving circuit is selectively electrically connected to or disconnected from the first port according to the supply status of the main power supply.

[0016] When the third connection terminal is in a second state separated from the second connection terminal: the second port is connected to the output terminal of the first driving circuit, and the first port is connected to the input terminal of the first driving circuit.

[0017] Preferably, when the third connection terminal is in the first state, the first port is also electrically connected to the charging port of the second drive circuit for charging the emergency power supply by means of the first conversion connector and the second conversion connector.

[0018] Preferably, the second conversion connector is provided with a plurality of third interfaces located at the third connection end and a plurality of fourth interfaces located at the fourth connection end, wherein the third interfaces and the fourth interfaces correspond one-to-one, and a corresponding pair of third interfaces and fourth interfaces are electrically connected.

[0019] Preferably, the two fourth interfaces corresponding to the input terminal of the first driving circuit and the first port are electrically connected through an electronic switch, and the second driving circuit controls the state of the electronic switch according to the connection state of the main power supply.

[0020] Preferably, it also includes a relay electrically connected to the second drive circuit, the relay being used to control the state of the electronic switch.

[0021] Preferably, a first unidirectional diode is further provided between the two fourth interfaces corresponding to the output terminal of the first driving circuit and the second port of the fourth connection terminal.

[0022] Preferably, a second unidirectional diode is further provided between the fourth interface of the fourth connection terminal corresponding to the second port and the second driving circuit.

[0023] This utility model also provides a plug-in dual power supply drive device, which includes the plug-in power supply drive device and the plug-in emergency power supply drive device as described above.

[0024] Compared with existing technologies, the plug-in dual power supply drive device provided by this utility model firstly achieves physical connection between the main drive circuit and the emergency drive circuit without cables through the plug-in design of the first and second conversion connectors. The plug-in operation replaces traditional wiring procedures, effectively saving assembly time and reducing assembly technical difficulty. Secondly, the modular design allows the second substrate (emergency drive module) to be independently packaged, adapting to emergency power supplies of different power / voltage specifications. Furthermore, this design allows for emergency modification by a third party, significantly reducing product inventory and saving costs and funds. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the power drive device in an embodiment of this utility model.

[0026] Figure 2 This is a three-dimensional structural diagram of the emergency power supply drive device in the embodiments of this utility model.

[0027] Figure 3 This is a connection diagram of the emergency power drive device and the power drive device in an embodiment of this utility model.

[0028] Figure 4 This is a circuit diagram of a power supply drive device used alone in an embodiment of this utility model.

[0029] Figure 5 This is a circuit diagram showing the use of a power drive device and an emergency power drive device in conjunction with each other in an embodiment of this utility model. Detailed Implementation

[0030] To explain in detail the technical content, structural features, objectives and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0031] like Figures 1 to 3 This embodiment discloses a plug-in dual power supply drive device, which includes a power drive device S1 and an emergency power drive device S2. The power drive device S1 can be used independently or plugged into the emergency power drive device S2 for combined use.

[0032] When the power drive unit S1 is used alone, it drives the load (such as a lighting source) based on the conventional main power supply (such as AC power).

[0033] When the power drive unit S1 is used in conjunction with the emergency power drive unit S2, it can drive the load based on the conventional main power supply, or drive the load based on the emergency power supply BT when the main power supply is disconnected.

[0034] like Figures 1 to 5The power drive device S1 includes a first base 11, on which a first drive circuit U1, a first port J1, a second port J2 and a first conversion connector 12 are disposed.

[0035] The emergency power drive device S2 includes a second base 21, on which a second drive circuit U2, a second conversion connector 22, and an emergency power supply BT are disposed.

[0036] The first port J1 is used for electrical connection to the external main power supply, and the second port J2 is used for electrical connection to the load.

[0037] It should be noted that the first port J1 and the second port J2 can be solder ports or quick-release ports, such as terminal blocks.

[0038] The first adapter connector 12 includes a first connection end 121 and a second connection end 122, and the second adapter connector 22 includes a third connection end 221 and a fourth connection end 222.

[0039] For the first adapter connector 12, the first connection end 121 is electrically connected to the input (In+, In-) and output (Out+, Out-) terminals, the first port J1, and the second port J2 of the first drive circuit U1. The second connection end 122 is used to connect or disconnect with the third connection end 221 of the second adapter connector 22 in a plug-in manner, that is, the first adapter connector 12 and the second adapter connector 22 can be quickly connected or disconnected by plugging and unplugging.

[0040] For the second conversion connector 22, the fourth connection end 222 is electrically connected to the second drive circuit U2.

[0041] The second drive circuit U2 is electrically connected to the emergency power supply BT.

[0042] Therefore, the power drive device S1 in this embodiment has two working states, namely the first state and the second state.

[0043] In the first state, such as Figure 3 and Figure 5 The second connection end 122 is connected to the third connection end 221 so that the emergency power drive device S2 and the power drive device S1 are assembled together to form a dual power drive device.

[0044] In the second state, such as Figure 4 The second connection terminal 122 is separated from the third connection terminal 221 so that the power drive device S1 can be used alone and does not have an emergency function.

[0045] When the power drive device S1 is in the first state: the second port J2 is simultaneously connected to the output terminal of the first drive circuit U1 and the output terminal of the second drive circuit U2, and the input terminal of the first drive circuit U1 is selectively electrically connected to or disconnected from the first port J1 according to the main power supply status.

[0046] It should also be noted that the first adapter connector 12 can be fixedly mounted on the first base 11, or it can be moved outside the first base 11 via an extension cable. Similarly, the second adapter connector 22 can be fixedly mounted on the second base 21, or it can be moved outside the second base 21 via an extension cable. That is, the first adapter connector 12 is connected to the first drive circuit U1 via an extension cable, and the second adapter connector 22 is connected to the second drive circuit U2 via an extension cable, thus making it suitable for spaces of different sizes between the first base 11 and the second base 21.

[0047] Specifically, when the main power supply supplies power to the first port J1, the input terminal of the first drive circuit U1 is connected to the first port J1, and the output terminal of the first drive circuit U1 outputs drive current to the second port J2, so that the load works under the action of the drive current provided by the first drive circuit U1.

[0048] It should be noted that the second drive circuit U2 will also monitor the status of the main power supply of the first port J1 in real time. When the second drive circuit U2 detects that the main power supply is supplying power to the first port J1, it will stop outputting the drive current. It will only output the drive current when it detects that the main power supply of the first port J1 is disconnected.

[0049] When the main power supply stops supplying power to the first port J1, the input terminal of the first drive circuit U1 is disconnected from the first port J1, causing the first drive circuit U1 to exit the load drive network. At this time, the second drive circuit U2 outputs drive current to the second port J2, and the load works under the drive current provided by the second drive circuit U2.

[0050] When the power drive device S1 is in the second state: the second port J2 remains connected to the output terminal of the first drive circuit U1, and the first port J1 remains connected to the input terminal of the first drive circuit U1. Thus, when the main power supply provides power to the first port J1, the first drive circuit U1 outputs drive current to the load. When the main power supply stops providing power to the first port J1, the first drive circuit U1 stops outputting drive current to the load.

[0051] On the other hand, when the second connection terminal 122 (or the third connection terminal 221) is in the first state, that is, when the first conversion connector 12 and the second conversion connector 22 are connected, the first port J1 is also connected to the charging port (C) of the second drive circuit U2 for charging the emergency power supply BT by means of the first conversion connector 12 and the second conversion connector 22. L C N An electrical connection is established to charge the emergency power supply BT, ensuring that the BT's power is replenished. It should be noted that the emergency power supply BT in this embodiment is preferably a rechargeable battery.

[0052] On the other hand, the first conversion connector 12 is provided with a plurality of first interfaces located at the first connection end 121 and a plurality of second interfaces located at the second connection end 122. The first interfaces and the second interfaces correspond one-to-one, and a corresponding pair of first interfaces and second interfaces are electrically connected.

[0053] Specifically, the first conversion connector 12 has ten first interfaces (labeled P1, P3, P5, P7, P9, P11, P13, P15, P17, P19) and ten second interfaces (labeled P2, P4, P6, P8, P10, P12, P14, P16, P18, P20) to form ten pairs of conductive channels, namely P1-P2, P3-P4, P5-P6, P7-P8, P9-P10, P11-P12, P13-P14, P15-P16, P17-P18, P19-P20.

[0054] The first interface P1 is connected to the negative terminal of the first port J1 and the negative terminal of the output terminal of the first driving circuit U1, and the first interface P3 is connected to the positive terminal of the second port J2.

[0055] The first interface P11 is connected to the live wire terminal of the input terminal of the first driving circuit U1, the first interface P13 is connected to the first live wire terminal Ls of the first port J1, the first interface P15 is connected to the second live wire terminal Lp of the first port J1, and the first interface P19 is connected to the neutral wire terminal N of the first port J1.

[0056] It is worth noting that conductive channels P7-P8, P9-P10, and P17-P18 are left unused. P7-P8 and P9-P10 serve to isolate the input and output terminals of the power supply, while P17-P18 serves to isolate the live wire from the neutral wire.

[0057] On the other hand, the second conversion connector 22 is provided with a plurality of third interfaces located at the third connection end 221 and a plurality of fourth interfaces located at the fourth connection end 222. The third interfaces and the fourth interfaces correspond one-to-one, and a corresponding pair of third interfaces and fourth interfaces are electrically connected.

[0058] Specifically, the second conversion connector 22 has ten third interfaces (labeled Q1, Q3, Q5, Q7, Q9, Q11, Q13, Q15, Q17, Q19) and ten fourth interfaces (labeled Q2, Q4, Q6, Q8, Q10, Q12, Q14, Q16, Q18, Q20) to form ten pairs of conductive channels, namely Q1-Q2, Q3-Q4, Q5-Q6, Q7-Q8, Q9-Q10, Q11-Q12, Q13-Q14, Q15-Q16, Q17-Q18, Q19-Q20.

[0059] The fourth interface Q2 is connected to the negative terminal of the output of the second driving circuit U2, and the fourth interface Q4 is connected to the positive terminal of the output of the second driving circuit U2. The fourth interface Q16 is connected to the live wire C of the charging interface of the second driving circuit U2. L Connect the fourth interface Q20 to the neutral terminal C of the charging interface of the second drive circuit U2. N connect.

[0060] In this embodiment, either the second connecting end 122 or the third connecting end 221 is a male connector, and the other is a female connector, so that the second connecting end 122 and the third connecting end 221 can be plugged together.

[0061] When the second connection terminal 122 and the third connection terminal 221 are plugged together, Q1-Q2 are connected to P1-P2, Q3-Q4 are connected to P3-P4, ... Q19-Q20 are connected to P19-P20.

[0062] On the other hand, when the second connection terminal 122 is in the second state, that is, when the power drive device S1 is not connected to the emergency power drive device S2 and is used alone, a jumper T is inserted into the second connection terminal 122, such as... Figure 4 The jumper T is used to connect the two second interfaces on the first conversion connector that correspond to the conductive path between the output terminal of the first drive circuit U1 and the second port J2, and to connect the two second interfaces on the first conversion connector that correspond to the conductive path between the input terminal of the second drive circuit U2 and the first port J1.

[0063] Specifically, by using jumper T, P4 and P6 are shorted, thereby connecting P3 to P5, making the positive terminal of the first drive circuit U1 connected to the positive terminal of the second port J2. At the same time, by using jumper T, P12 and P14 are shorted, thereby connecting P11 to P13, making the live wire terminal of the input of the first drive circuit U1 connected to the live wire terminal of the first port J1.

[0064] like Figure 5The two fourth interfaces corresponding to the input terminal and the first port J1 of the first driving circuit U1 are electrically connected through an electronic switch K. The second driving circuit U2 controls the state of the electronic switch K according to the main power supply connection status.

[0065] Specifically, in the power drive device S1, the second interfaces P12 and P14 are connected to the input terminal of the second drive circuit U2 and the first live wire terminal Ls of the first port J1, respectively. When the first conversion connector 12 and the second conversion connector 22 are plugged together, the second interfaces P12 and P14 are connected to the third interfaces Q11 and Q13, respectively. Therefore, an electronic switch K is set between the fourth interfaces Q12 and Q14.

[0066] In addition, the emergency power supply drive device S2 also includes a relay M electrically connected to the second drive circuit U2, which is used to control the state of the electronic switch K.

[0067] The electronic switch K is a normally open switch. When the second drive circuit U2 detects a normal main power supply through the charging port, it energizes the relay M, thereby keeping the electronic switch K in the closed state. When the second drive circuit U2 detects a stop in the main power supply through the charging port, the relay M is de-energized, thus keeping the electronic switch K in the open state.

[0068] On the other hand, a first unidirectional diode D1 is also provided between the two fourth interfaces corresponding to the output terminal of the first driving circuit U1 and the second port J2 of the fourth connection terminal 222.

[0069] A second unidirectional diode D2 is also provided between the fourth interface of the fourth connection terminal 222, which corresponds to the second port J2, and the second drive circuit U2.

[0070] Specifically, the first unidirectional diode D1 is disposed between the fourth interface Q6 and Q4. The first unidirectional diode D1 allows current to flow from the first interface Q6 to the fourth interface Q4 and restricts reverse flow.

[0071] The second unidirectional diode D2 is disposed between the positive terminal of the fourth interface Q4 and the output terminal of the second driving circuit U2. The second unidirectional diode D2 allows current to flow from the output terminal of the second driving circuit U2 to the fourth interface Q4 and restricts reverse flow.

[0072] It should also be noted that the first conversion connector 12 (or the second conversion connector 22) disclosed in the above embodiments can be implemented by a single physical structural component (such as a male or female connector), or by two or more physical structural components, without limitation.

[0073] In summary, the plug-in dual power supply drive device disclosed in this utility model includes a plug-in power supply drive device S1 and a plug-in emergency power supply drive device S2, which can enable ordinary electrical equipment (such as LED lamps) to be equipped with emergency (such as emergency lighting) functions. Firstly, through the pluggable design of the first conversion connector 12 and the second conversion connector 22, the physical connection between the main drive circuit and the emergency drive circuit can be completed without cables. The pluggable operation replaces the traditional wiring process, effectively saving assembly time and reducing assembly technical difficulty. Secondly, the modular design allows the second base 21 (emergency drive module) to be independently packaged, adapting to emergency power supplies BT of different power / voltage specifications. Furthermore, this design allows for emergency modification by a third party, significantly reducing product inventory and saving costs and funds.

[0074] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.

Claims

1. A power drive device, characterized in that, It includes a first base, on which a first driving circuit, a first port, a second port, and a first conversion connector are disposed; The first port is used for electrical connection to an external main power supply, and the second port is used for electrical connection to a load; The first adapter connector includes a first connection end and a second connection end. The first connection end is electrically connected to the input and output ends, the first port, and the second port of the first drive circuit. The second connection end is used to connect or disconnect with the third connection end of the second adapter connector in a plug-in manner. The second adapter connector is located on a second base independent of the first base. The second adapter connector is also electrically connected to a second drive circuit located on the second base through a fourth connection end. The second drive circuit is electrically connected to an emergency power supply. When the second connection terminal is in the first state of being connected to the third connection terminal: the second port is simultaneously connected to the output terminal of the first driving circuit and the output terminal of the second driving circuit, and the input terminal of the first driving circuit is selectively electrically connected to or disconnected from the first port according to the supply status of the main power supply. When the second connection terminal is in a second state separated from the third connection terminal: the second port remains connected to the output terminal of the first driving circuit, and the first port remains connected to the input terminal of the first driving circuit.

2. The power drive device according to claim 1, characterized in that, When the second connection is in the first state, the first port is also electrically connected to the charging port of the second drive circuit for charging the emergency power supply by means of the first conversion connector and the second conversion connector.

3. The power drive device according to claim 1, characterized in that, The first adapter connector is provided with a plurality of first interfaces located at the first connection end and a plurality of second interfaces located at the second connection end. The first interfaces and the second interfaces correspond one-to-one, and a corresponding pair of first interfaces and second interfaces are electrically connected.

4. The power drive device according to claim 3, characterized in that, When the second connection terminal is in the second state, a jumper is plugged into the second connection terminal. The jumper is used to connect the two second interfaces on the first conversion connector that correspond to the conductive path between the output terminal and the second port of the first drive circuit, and to connect the two second interfaces on the first conversion connector that correspond to the conductive path between the input terminal and the first port of the second drive circuit.

5. An emergency power supply drive device, characterized in that, The device includes a second base, a second drive circuit located on the second base, and a second conversion connector. The input terminal of the second drive circuit is electrically connected to an emergency power supply. The second conversion connector includes a third connection terminal and a fourth connection terminal. The fourth connection terminal is electrically connected to the input terminal of the second drive circuit. The third connection terminal is connected to or disconnected from the second connection terminal of the first conversion connector in a plug-in manner. The first conversion connector is located on a first base independent of the second base and also includes a first connection terminal. The first base is further provided with a first drive circuit, a first port, and a second port. The first port is used for electrical connection to an external main power supply, and the second port is used for electrical connection to a load. The first connection terminal is electrically connected to the input and output terminals of the first driving circuit, the first port, and the second port; When the third connection terminal is in the first state of being connected to the second connection terminal: the second port is simultaneously connected to the output terminal of the first driving circuit and the output terminal of the second driving circuit, and the input terminal of the first driving circuit is selectively electrically connected to or disconnected from the first port according to the supply status of the main power supply. When the third connection terminal is in a second state separated from the second connection terminal: the second port is connected to the output terminal of the first driving circuit, and the first port is connected to the input terminal of the first driving circuit.

6. The emergency power supply drive device according to claim 5, characterized in that, When the third connection terminal is in the first state, the first port is also electrically connected to the charging port of the second drive circuit for charging the emergency power supply by means of the first conversion connector and the second conversion connector.

7. The emergency power supply drive device according to claim 5, characterized in that, The second conversion connector is provided with a plurality of third interfaces located at the third connection end and a plurality of fourth interfaces located at the fourth connection end. The third interfaces and the fourth interfaces correspond one-to-one, and a corresponding pair of third interfaces and fourth interfaces are electrically connected.

8. The emergency power supply drive device according to claim 7, characterized in that, The two fourth interfaces corresponding to the input terminal and the first port of the first driving circuit are electrically connected through an electronic switch, and the second driving circuit controls the state of the electronic switch according to the access state of the main power supply.

9. The emergency power supply drive device according to claim 8, characterized in that, It also includes a relay electrically connected to the second drive circuit, the relay being used to control the state of the electronic switch.

10. The emergency power supply drive device according to claim 8, characterized in that, A first unidirectional diode is also provided between the two fourth interfaces corresponding to the output terminal of the first driving circuit and the second port of the fourth connection terminal.

11. The emergency power supply drive device according to claim 8, characterized in that, A second unidirectional diode is also provided between the fourth interface corresponding to the second port of the fourth connection terminal and the second driving circuit.

12. A dual-power drive device, characterized in that, It includes the power drive device as described in any one of claims 1 to 4 and the emergency power drive device as described in any one of claims 5 to 11.