Automatic energy conversion device in double-electricity combination form

Abstract

The invention discloses an automatic energy conversion device in a double-electricity combination mode. The automatic energy conversion device is applied to conversion between energy assemblies needed for self-starting of an emergency generator on a ship. Starting energy sources suitable for the device are two sets of independent storage battery packs, namely a so-called double-power combination. A conversion assembly of the conversion device mainly comprises two sets of contactors which are interlocked: when a coil of a first contactor is electrified, a coil of a second contactor is de-electrified; and vice versa. The first storage battery pack is connected with the emergency generator through a normally open main contact of the first contactor, and the second storage battery pack is connected with the emergency generator through a normally open main contact of the second contactor. Through the device, the main starting energy source can be manually set, and when the main storage battery pack cannot normally start the emergency generator, the standby storage battery pack is automatically switched and started, so that the completion of self-starting of the emergency generator is ensured. And the main storage battery pack is regularly and alternately arranged, so that the service life of the double-power starting energy can be relatively prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of ships, and in particular to an automatic energy conversion device in the form of a dual-electric combination. Background Art

[0002] Emergency generators are commonly found on ships. As one of the main forms of emergency power supply, they are an important measure to obtain necessary power on board before the ship resumes normal power supply after the main power supply on board fails. Among them, emergency generators are related to whether the ship can resume normal power supply, and their importance to ship safety is self-evident.

[0003] In the related art, the emergency generator is usually equipped with two independent battery packs as the starting energy source of the generator. The two battery packs are selectively connected to the emergency generator through a switch device, and the switch device usually includes a manual switch, wherein the manual switch is usually a knife switch. When one of the battery packs cannot start the emergency generator, the crew needs to rush to the emergency generator, disconnect the battery pack from the emergency generator through the knife switch, and then close the other battery pack to connect it to the emergency generator. The manual operation of the knife switch will cause a time delay in the conversion between the two battery packs, which poses a major safety hazard to ships that have lost normal power and are in a critical juncture. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic energy conversion device in the form of a dual-electric combination. When the main battery pack connected to the emergency generator cannot start the emergency generator, it can automatically switch to the backup battery pack to connect to the emergency generator, thereby achieving zero-time delay conversion and ensuring the normal starting of the emergency generator.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] Provided is an automatic energy conversion device in the form of a dual-electric combination, which is applied to the automatic conversion of power supply between a first battery group and a second battery group of an emergency generator as a self-starting energy source, and the automatic energy conversion device in the form of a dual-electric combination includes:

[0007] A conversion assembly includes a first contactor and a second contactor, wherein the first contactor and the second contactor are interlocked, and when the coil of the first contactor is energized, the coil of the second contactor is de-energized; when the coil of the second contactor is energized, the coil of the first contactor is de-energized;

[0008] The first storage battery pack can be connected to the emergency generator via the normally open main contact of the first contactor, or the second storage battery pack can be connected to the emergency generator via the normally open main contact of the second contactor.

[0009] Optionally, the conversion component also includes:

[0010] A first self-resetting normally closed switch, connected in series with the normally closed contact of the second contactor and the coil of the first contactor to form a first control circuit;

[0011] A second self-resetting normally closed switch is connected in series with the normally closed contact of the first contactor and the coil of the second contactor to form a second control circuit.

[0012] Optionally, the conversion component further includes:

[0013] A first fuse is connected in series in the first control circuit;

[0014] A second fuse is connected in series in the second control circuit.

[0015] Optionally, the conversion component further includes:

[0016] A first incoming line switch, connected in series in the first control circuit;

[0017] The second incoming line switch is connected in series in the second control circuit.

[0018] Optionally, the conversion component further includes:

[0019] a first diode, through which the normally open main contact of the first contactor can be connected to the emergency generator;

[0020] A second diode, through which the normally open main contact of the second contactor can be connected to the emergency generator.

[0021] Optionally, the conversion component further includes:

[0022] a first indicator light, connected in series with a first normally open contact of the first contactor to form a first indication circuit, the first indicator light being used to indicate that the first storage battery pack is online;

[0023] A second indicator light is connected in series with the first normally open contact of the second contactor to form a second indication circuit, and the second indicator light is used to indicate that the second battery pack is online.

[0024] Optionally, the conversion component further includes:

[0025] a third fuse connected in series in the first indication circuit;

[0026] A fourth fuse is connected in series in the second indicating circuit.

[0027] Optionally, the conversion component also includes a relay, a first normally open contact of the relay and a first normally open contact of the first contactor are connected in parallel and connected in series with the first indicator light, and a second normally open contact of the relay and a first normally open contact of the second contactor are connected in parallel and connected in series with the second indicator light.

[0028] Optionally, the conversion component also includes a self-resetting normally open switch, which is connected in series with the coil of the relay to form a third control circuit.

[0029] Optionally, the conversion component also includes a fifth fuse connected in series in the third control circuit.

[0030] Beneficial effects: The energy automatic conversion device in the form of a dual-electric combination provided by the present invention controls the coil of the first contactor to be energized so that the normally open main contact of the first contactor is connected, and because the first contactor and the second contactor are interlocked, the coil of the second contactor loses power, the normally open main contact of the second contactor is disconnected, and the first battery pack can be connected to the emergency generator through the normally open main contact of the first contactor; controls the coil of the second contactor to be energized so that the normally open main contact of the second contactor is connected, and because the first contactor and the second contactor are interlocked, the coil of the first contactor loses power, the normally open main contact of the first contactor is disconnected, and the second battery pack can be connected to the emergency generator through the normally open main contact of the second contactor. Among them, one of the first battery pack and the second battery pack is used as the main battery pack, and the other is used as the backup battery pack. When the main battery pack connected to the emergency generator cannot start the emergency generator, it can be automatically switched to the backup battery pack to connect to the emergency generator, realizing zero-time delay conversion and ensuring the normal start of the emergency generator, that is, the conversion connection between the two battery packs and the emergency generator can be completed with zero time interval through the conversion component, which is safe and reliable. In addition, during the working cycle of the emergency generator, the first battery pack and the second battery pack can be set up with a dual-electric combination of energy automatic conversion devices to rotate the main battery pack, optimize maintenance, and relatively extend the service life of the starting energy component. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a circuit principle diagram of the control circuit of the energy automatic conversion device in the form of a dual-electric combination provided by the present invention;

[0032] Figure 2 It is a structural schematic diagram of the conversion box provided by the present invention.

[0033] In the figure:

[0034] 110, a first storage battery pack; 120, a second storage battery pack;

[0035] 211, first contactor; 212, first self-resetting normally closed switch; 213, first fuse; 214, first incoming line switch; 215, first diode; 221, second contactor; 222, second self-resetting normally closed switch; 223, second fuse; 224, second incoming line switch; 225, second diode; 231, first indicator light; 232, third fuse; 241, second indicator light; 242, fourth fuse; 251, relay; 252, self-resetting normally open switch; 253, fifth fuse; 260, switching box;

[0036] 300. Emergency generator;

[0037] 400. Main control unit. DETAILED DESCRIPTION

[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0039] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0041] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0042] Reference Figure 1 and Figure 2 As shown, this embodiment provides an automatic energy conversion device in the form of a dual-electric combination, which is applied to the first battery group 110 and the second battery group 120 of the emergency generator 300 as automatic power conversion between self-starting energy sources.

[0043] Specifically, the starting energy component includes a first battery group 110 and a second battery group 120 .

[0044] Specifically, the energy automatic conversion device in the form of a dual-electric combination includes a conversion component, which includes a first contactor 211 and a second contactor 221. The first contactor 211 and the second contactor 221 form an interlock. When the coil 1KM of the first contactor 211 is energized, the coil 2KM of the second contactor 221 is de-energized; when the coil 2KM of the second contactor 221 is energized, the coil 1KM of the first contactor 211 is de-energized. The first battery pack 110 can be connected to the emergency generator 300 through the normally open main contact 1KM-1 of the first contactor 211, or the second battery pack 120 can be connected to the emergency generator 300 through the normally open main contact 2KM-1 of the second contactor 221.

[0045] In this embodiment, the coil 1KM of the first contactor 211 is controlled to be energized so that the normally open main contact 1KM-1 of the first contactor 211 is connected, and because the first contactor 211 and the second contactor 221 are interlocked, the coil 2KM of the second contactor 221 is de-energized, and the normally open main contact 2KM-1 of the second contactor 221 is disconnected, and the first storage battery group 110 can be connected to the emergency generator 300 through the normally open main contact 1KM-1 of the first contactor 211. connected; by controlling the coil 2KM of the second contactor 221 to be energized, so that the normally open main contact 2KM-1 of the second contactor 221 is connected, and because the first contactor 211 and the second contactor 221 are interlocked, the coil 1KM of the first contactor 211 loses power, the normally open main contact 1KM-1 of the first contactor 211 is open, and the second battery pack 120 can be connected to the emergency generator 300 through the normally open main contact 2KM-1 of the second contactor 221. During the working cycle of the emergency generator 300, one of the first battery pack 110 and the second battery pack 120 serves as a main battery pack and the other serves as a backup battery pack. When the main battery pack connected to the emergency generator 300 cannot start the emergency generator 300, it can automatically switch to the backup battery pack to connect to the emergency generator 300, realizing zero-time delay conversion and ensuring the normal start-up of the emergency generator 300. That is, the conversion connection between the two battery packs and the emergency generator 300 can be completed with zero time interval through the conversion component, which is safe and reliable.

[0046] It can be understood that one of the first battery group 110 and the second battery group 120 serves as a main battery group and the other serves as a backup battery group. During the working cycle of the emergency generator 300, the first battery group 110 and the second battery group 120 can rotate the main battery group through the setting of an automatic energy conversion device in the form of a dual-electric combination, optimize maintenance, and relatively extend the service life of the starting energy component.

[0047] It is understandable that, through the interlocking of the first contactor 211 and the second contactor 221, the energy automatic conversion device in the dual-electric combination form can remotely control the conversion of the power supply of the first battery pack 110 and the second battery pack 120 to the emergency generator 300.

[0048] Specifically, the energy automatic conversion device in the dual-electric combination form also includes a conversion box 260, in which a first contactor 211 and a second contactor 221 are arranged to effectively ensure the safety of electricity use.

[0049] In this embodiment, the conversion component also includes a first self-resetting normally closed switch 212 and a second self-resetting normally closed switch 222. The first self-resetting normally closed switch 212 is connected in series with the normally closed contact 2KM-2 of the second contactor 221 and the coil 1KM of the first contactor 211 to form a first control circuit; the second self-resetting normally closed switch 222 is connected in series with the normally closed contact 1KM-2 of the first contactor 211 and the coil 2KM of the second contactor 221 to form a second control circuit. By triggering the first self-resetting normally closed switch 212 or the second self-resetting normally closed switch 222, the conversion connection between the two battery packs and the emergency generator 300 can be quickly completed.

[0050] Specifically, the first self-resetting normally closed switch 212 and the second self-resetting normally closed switch 222 can be arranged on the conversion box 260 and located outside the conversion box 260 to facilitate triggering the first self-resetting normally closed switch 212 and the second self-resetting normally closed switch 222.

[0051] Exemplarily, when the coil 1KM of the first contactor 211 is energized and the coil 2KM of the second contactor 221 is de-energized, the first self-resetting normally closed switch 212 is triggered, the first control circuit is disconnected, the coil 1KM of the first contactor 211 is de-energized, the normally open main contact 1KM-1 of the first contactor 211 is disconnected, and the normally closed contact 1KM-2 of the first contactor 211 is connected, so that the second control circuit is connected, the coil 2KM of the second contactor 221 is energized, and the normally open main contact 2KM-1 of the second contactor 221 is connected.

[0052] Exemplarily, when the coil 1KM of the first contactor 211 loses power and the coil 2KM of the second contactor 221 is energized, the second self-resetting normally closed switch 222 is triggered, the second control circuit is disconnected, the coil 2KM of the second contactor 221 loses power, the normally open main contact 2KM-1 of the second contactor 221 is disconnected, and the normally closed contact 2KM-2 of the second contactor 221 is connected, so that the first control circuit is connected, the coil 1KM of the first contactor 211 is energized, and the normally open main contact 1KM-1 of the first contactor 211 is connected.

[0053] In this embodiment, during the working cycle of the emergency generator 300, the main battery pack can be rotated manually by triggering the first self-resetting normally closed switch 212 or the second self-resetting normally closed switch 222, thereby optimizing maintenance and relatively extending the service life of the starting energy component.

[0054] Exemplarily, the first control circuit is connected to the first battery pack 110, and the second control circuit is connected to the second battery pack 120, which simplifies the circuit and facilitates inspection, maintenance and troubleshooting of startup problems. Of course, the first control circuit and the second control circuit can also be powered by other power sources.

[0055] In a feasible implementation, the conversion assembly further includes a first fuse 213 and a second fuse 223, wherein the first fuse 213 is connected in series to the first control circuit, and the second fuse 223 is connected in series to the second control circuit. In this embodiment, the first fuse 213 can form a short-circuit protection for the first control circuit, and the second fuse 223 can form a short-circuit protection for the second control circuit to ensure safety.

[0056] Exemplarily, two first fuses 213 are provided and are respectively connected in series to two ends of the first control circuit. It can be understood that two ends of the first control circuit are respectively connected to the first battery pack 110 or other power sources through the first fuses 213.

[0057] Exemplarily, two second fuses 223 are provided and are respectively connected in series to the two ends of the second control circuit. It can be understood that the two ends of the second control circuit are respectively connected to the second battery pack 120 or other power source through the second fuses 223.

[0058] In this embodiment, refer to Figure 1 As shown, the conversion assembly also includes a first incoming line switch 214 and a second incoming line switch 224. The first incoming line switch 214 is connected in series to the first control circuit, and the second incoming line switch 224 is connected in series to the second control circuit. In this embodiment, when maintenance and inspection maintenance are required, the first incoming line switch 214 and the second incoming line switch 224 can be disconnected, and the corresponding components or circuits can be troubleshooted and replaced according to the electrical principle wiring diagram to ensure personal safety.

[0059] Exemplarily, the first incoming switch 214 may be a circuit breaker.

[0060] Exemplarily, the second incoming switch 224 may be a circuit breaker.

[0061] For example, on the premise that the wiring of the energy automatic conversion device in the dual-electric combination form is correct, the first incoming line switch 214 and the second incoming line switch 224 are manually closed in sequence, or the second incoming line switch 224 and the first incoming line switch 214 are closed in sequence to put the first control circuit and the second control circuit into working state. The closing interval time of the first incoming line switch 214 and the second incoming line switch 224 can be 2S-3S to ensure safety.

[0062] For example, the first incoming line switch 214 and the second incoming line switch 224 may be disposed in a conversion box 260 .

[0063] In this embodiment, refer to Figure 1As shown, the conversion assembly also includes a first diode 215 and a second diode 225. The normally open main contact 1KM-1 of the first contactor 211 can be connected to the emergency generator 300 through the first diode 215; the normally open main contact 2KM-1 of the second contactor 221 can be connected to the emergency generator 300 through the second diode 225 to protect the line.

[0064] Specifically, the first diode 215 and the second diode 225 may be disposed in the conversion box 260 .

[0065] Exemplarily, the normally open main contact 1KM- 1 of the first contactor 211 and the first diode 215 are connected in parallel with the normally open main contact 2KM- 1 of the second contactor 221 and the second diode 225 .

[0066] In this embodiment, refer to Figure 1 and Figure 2 As shown, the conversion assembly further includes a first indicator light 231 and a second indicator light 241. The first indicator light 231 is connected in series with the first normally open contact 1KM-3 of the first contactor 211 to form a first indication circuit, and the first indicator light 231 is used to indicate that the first battery pack 110 is online, and the second indicator light 241 is connected in series with the first normally open contact 2KM-3 of the second contactor 221 to form a second indication circuit, and the second indicator light 241 is used to indicate that the second battery pack 120 is online.

[0067] Specifically, the first indicator light 231 and the second indicator light 241 may be disposed on the conversion box 260 and located outside the conversion box 260 , so as to facilitate observation of the on / off status of the first contactor 211 and the second contactor 221 .

[0068] In this embodiment, when the coil 1KM of the first contactor 211 is energized and the coil 2KM of the second contactor 221 is de-energized, the first normally open contact 1KM-3 of the first contactor 211 is connected, the first indicator light 231 is energized and generates light, the first normally open contact 2KM-3 of the second contactor 221 is disconnected, and the second indicator light 241 is de-energized and extinguished, that is, the indication that the first battery pack 110 is online is realized; when the coil 1KM of the first contactor 211 is de-energized and the coil 2KM of the second contactor 221 is energized, the second ... contact The first normally open contact 2KM-3 of the first contactor 221 is connected, the second indicator light 241 is energized and generates light, the first normally open contact 1KM-3 of the first contactor 211 is disconnected, and the first indicator light 231 is de-energized and extinguished, that is, the indication that the second battery pack 120 is online is realized, and the on-off state of the normally open main contact 1KM-1 of the first contactor 211 and the normally open main contact 2KM-1 of the second contactor 221 is convenient to observe, and the conversion connection between the first battery pack 110 and the second battery pack 120 and the emergency generator 300 is identified.

[0069] In a feasible implementation, the conversion assembly further includes a third fuse 232 and a fourth fuse 242, wherein the third fuse 232 is connected in series to the first indication circuit, and the fourth fuse 242 is connected in series to the second indication circuit. In this embodiment, the third fuse 232 can provide short-circuit protection for the first indication circuit, and the fourth fuse 242 can provide short-circuit protection for the second indication circuit to ensure safety.

[0070] Exemplarily, two third fuses 232 are provided and are respectively connected in series to the two ends of the first indication circuit. It is understandable that the two ends of the first indication circuit are respectively connected to the first battery pack 110 or the second battery pack 120 or other power sources through the third fuses 232.

[0071] Exemplarily, two fourth fuses 242 are provided and are respectively connected in series to the two ends of the second indication circuit. It is understandable that the two ends of the second indication circuit are respectively connected to the first battery pack 110 or the second battery pack 120 or other power sources through the fourth fuses 242.

[0072] In this embodiment, refer to Figure 1 and Figure 2 As shown, the conversion component also includes a relay 251, and the first normally open contact 3KM-1 of the relay 251 and the first normally open contact 1KM-3 of the first contactor 211 are connected in parallel and then connected in series with the first indicator light 231, and the second normally open contact 3KM-2 of the relay 251 and the first normally open contact 2KM-3 of the second contactor 221 are connected in parallel and then connected in series with the second indicator light 241. In this embodiment, the trigger relay 251 plays the function of testing the light. It can be understood that the first normally open contact 3KM-1 and the second normally open contact 3KM-2 of the control relay 251 are connected, and the first indicator light 231 and the second indicator light 241 can both be powered and generate light to check whether the first indicator light 231 and the second indicator light 241 can work normally.

[0073] In a feasible implementation, the conversion component further includes a self-resetting normally open switch 252, which is connected in series with the coil 3KM of the relay 251 to form a third control circuit. In this embodiment, the self-resetting normally open switch 252 is triggered, and the coil 3KM of the relay 251 is energized, thereby realizing the passage of the first normally open contact 3KM-1 and the second normally open contact 3KM-2 of the relay 251, which facilitates the inspection of whether the first indicator light 231 and the second indicator light 241 can work normally.

[0074] Specifically, the self-resetting normally open switch 252 can be disposed on the conversion box 260 and located outside the conversion box 260 to facilitate triggering the self-resetting normally open switch 252 .

[0075] In a feasible implementation, the conversion assembly further includes a fifth fuse 253, and the fifth fuse 253 is connected in series to the third control circuit. In this embodiment, the fifth fuse 253 can provide short-circuit protection for the third control circuit.

[0076] Exemplarily, two fifth fuses 253 are provided and are respectively connected in series to the two ends of the third control circuit. It is understandable that the two ends of the third control circuit are respectively connected to the first battery pack 110 or the second battery pack 120 or other power sources through the fifth fuses 253.

[0077] In this embodiment, the emergency generator 300 includes an electric starter motor (not shown), and the first battery pack 110 or the second battery pack 120 starts the emergency generator 300 through the electric starter motor.

[0078] In this embodiment, refer to Figure 1 As shown, the energy automatic conversion device in the form of a dual-electric combination further includes a main control unit 400, which is electrically connected to the emergency generator 300, and is used to control the startup energy component to start the emergency generator 300. In this embodiment, when the coil 1KM of the first contactor 211 is energized, the main control unit 400 can control the first battery pack 110 to start the emergency generator 300 after receiving a signal that the main power supply is off; when the coil 2KM of the second contactor 221 is energized, the main control unit 400 can control the second battery pack 120 to start the emergency generator 300 after receiving a signal that the main power supply is off.

[0079] Specifically, the main control unit 400 includes a main control box (not shown), a controller (not shown) arranged in the main control box, and a main control switch (not shown) connected to the controller. The input end of the main control switch is connected to the normally open main contact 1KM-1 of the first contactor 211 and the normally open main contact 2KM-1 of the second contactor 221, and the output end of the main control switch is connected to the emergency generator 300. The main control switch is controlled by the controller, thereby controlling the first battery group 110 or the second battery group 120 to start and supply energy to the emergency generator 300.

[0080] For example, the main control unit 400 can be connected to the first battery pack 110 through the normally open main contact 1KM-1 of the first contactor 211, or connected to the second battery pack 120 through the normally open main contact 2KM-1 of the second contactor 221, that is, the main control unit 400 is powered by the first battery pack 110 or the second battery pack 120, which simplifies the circuit and facilitates inspection, maintenance and troubleshooting of startup problems. Of course, the main control unit 400 can also be powered by other power sources.

[0081] In a feasible implementation, the second normally open contact 1KM-4 of the first contactor 211 and the second normally open contact 2KM-4 of the second contactor 221 can be connected to the main control unit 400 to feed back the main battery pack selection information to the main control unit 400 in real time. Of course, the second normally open contact 1KM-4 of the first contactor 211 and the second normally open contact 2KM-4 of the second contactor 221 can also be connected to other detection or alarm systems on the ship.

[0082] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An automatic energy conversion device in the form of a dual-electric combination, used for automatic power conversion between a first battery pack (110) and a second battery pack (120) of an emergency generator (300) as a self-starting energy source, characterized in that: The energy automatic conversion device in the dual-electric combination form comprises: A conversion component comprises a first contactor (211) and a second contactor (221), wherein the first contactor (211) and the second contactor (221) are interlocked, and when the coil (1KM) of the first contactor (211) is energized, the coil (2KM) of the second contactor (221) is de-energized; when the coil (2KM) of the second contactor (221) is energized, the coil (1KM) of the first contactor (211) is de-energized; The first battery pack (110) can be connected to the emergency generator (300) via the normally open main contact (1KM-1) of the first contactor (211), or the second battery pack (120) can be connected to the emergency generator (300) via the normally open main contact (2KM-1) of the second contactor (221).

2. The dual-electric combination energy automatic conversion device according to claim 1 is characterized in that: The conversion components also include: A first self-resetting normally closed switch (212) is connected in series with a normally closed contact (2KM-2) of the second contactor (221) and a coil (1KM) of the first contactor (211) to form a first control circuit; The second self-resetting normally closed switch (222) is connected in series with the normally closed contact (1KM-2) of the first contactor (211) and the coil (2KM) of the second contactor (221) to form a second control circuit.

3. The dual-electric combination energy automatic conversion device according to claim 2 is characterized in that: The conversion component also includes: A first fuse (213), connected in series in the first control circuit; The second fuse (223) is connected in series in the second control circuit.

4. The dual-electric combination energy automatic conversion device according to claim 2 is characterized in that: The conversion component also includes: A first incoming line switch (214), connected in series in the first control circuit; The second incoming line switch (224) is connected in series in the second control circuit.

5. The dual-electric combination energy automatic conversion device according to claim 1 is characterized in that: The conversion component also includes: a first diode (215), wherein the normally open main contact (1KM-1) of the first contactor (211) can be connected to the emergency generator (300) via the first diode (215); A second diode (225), the normally open main contact (2KM-1) of the second contactor (221) can be connected to the emergency generator (300) through the second diode (225).

6. The automatic energy conversion device in the form of a dual-electric combination according to any one of claims 1 to 5, characterized in that: The conversion component also includes: A first indicator light (231) is connected in series with a first normally open contact (1KM-3) of the first contactor (211) to form a first indication circuit, wherein the first indicator light (231) is used to indicate that the first storage battery pack (110) is online; A second indicator light (241) is connected in series with the first normally open contact (2KM-3) of the second contactor (221) to form a second indication circuit, and the second indicator light (241) is used to indicate that the second storage battery pack (120) is online.

7. The dual-electric combination energy automatic conversion device according to claim 6 is characterized in that: The conversion component also includes: A third fuse (232), connected in series to the first indication circuit; A fourth fuse (242) is connected in series in the second indicating circuit.

8. The dual-electric combination energy automatic conversion device according to claim 6 is characterized in that: The conversion component also includes a relay (251); a first normally open contact (3KM-1) of the relay (251) and a first normally open contact (1KM-3) of the first contactor (211) are connected in parallel and then connected in series with the first indicator light (231); a second normally open contact (3KM-2) of the relay (251) and a first normally open contact (2KM-3) of the second contactor (221) are connected in parallel and then connected in series with the second indicator light (241).

9. The dual-electric combination energy automatic conversion device according to claim 8 is characterized in that: The conversion component also includes a self-resetting normally open switch (252), which is connected in series with the coil (3KM) of the relay (251) to form a third control circuit.

10. The dual-electric combination energy automatic conversion device according to claim 9 is characterized in that: The conversion component also includes a fifth fuse (253) connected in series in the third control circuit.

Images