CN221652284U - Energy storage system power-on circuit - Google Patents
Energy storage system power-on circuit Download PDFInfo
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- CN221652284U CN221652284U CN202323663657.XU CN202323663657U CN221652284U CN 221652284 U CN221652284 U CN 221652284U CN 202323663657 U CN202323663657 U CN 202323663657U CN 221652284 U CN221652284 U CN 221652284U
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- 238000004146 energy storage Methods 0.000 title claims abstract description 76
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims description 34
- 238000011084 recovery Methods 0.000 claims description 8
- 238000003306 harvesting Methods 0.000 claims 2
- 206010014357 Electric shock Diseases 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000010891 electric arc Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
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- 238000000034 method Methods 0.000 description 1
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Abstract
The application discloses an energy storage system power-on circuit which comprises an energy storage interlocking circuit, a power-on control circuit and a power-on detection circuit, wherein the power-on interlocking circuit is connected with the power-on detection circuit; the energy storage interlocking circuit comprises a plurality of energy storage modules and a high-voltage interlocking connector, and the plurality of energy storage modules are connected in series through the high-voltage interlocking connector; the power-on control circuit is electrically connected with the energy storage interlocking circuit and is used for outputting the electric energy stored by the energy storage interlocking circuit to the electric equipment so as to power on the electric equipment; the power-on detection circuit is electrically connected with the power-on control circuit and is used for detecting whether the electric energy output by the power-on control circuit maintains the electric equipment in a normal power-on state according to the voltage output by the power-on control circuit. The power-on circuit of the energy storage system provided by the application not only can effectively avoid the risk of electric shock of the high-voltage connector in the electrified state, but also can detect the power-on state of the energy storage system.
Description
Technical Field
The application relates to the technical field of energy storage system control, in particular to an energy storage system power-on circuit.
Background
The energy storage system generally adopts a plurality of battery boxes or a plurality of battery modules to provide working voltage for external electric equipment, for example, the working voltage required by an electric automobile is up to hundreds of volts and far exceeds human safety voltage 36V, in the system assembly process, when a high-voltage connector is manually plugged, because the whole loop voltage is added at two ends of a connector endpoint, the high-voltage connector does not have breaking capacity, high-voltage breakdown air can generate strong arc discharge between two devices, the time is short, but the energy is high, and the damage to personnel and equipment around a break point can be caused. And users or maintenance personnel often need to carry out under the state that the consumer has been powered down when overhauling high voltage system, however if high voltage system breaks down, when failing to power down the consumer smoothly, often can cause the danger of assembly electric shock for the maintenance personnel. Accordingly, there is a need to provide an improved solution to overcome the above technical problems in the prior art.
Disclosure of utility model
In view of the above problems, the present application aims to provide a power-on circuit of an energy storage system, which not only can effectively avoid the risk of electric shock caused by plugging and unplugging a high-voltage connector in a live state, but also can detect the power-on state of the energy storage system.
The application provides an energy storage system power-on circuit which comprises an energy storage interlocking circuit, a power-on control circuit and a power-on detection circuit, wherein the power-on interlocking circuit is connected with the power-on detection circuit;
The energy storage interlocking circuit comprises a plurality of energy storage modules and a high-voltage interlocking connector, and the plurality of energy storage modules are connected in series through the high-voltage interlocking connector;
The power-on control circuit is electrically connected with the energy storage interlocking circuit and is used for outputting the electric energy stored by the energy storage interlocking circuit to electric equipment so as to power on the electric equipment;
The power-on detection circuit is electrically connected with the power-on control circuit and is used for detecting whether the electric energy output by the power-on control circuit maintains the electric equipment in a normal power-on state according to the voltage output by the power-on control circuit.
Optionally, the high voltage interlock connector includes a power connection terminal and an interlock terminal, the power connection terminal having a length greater than a length of the interlock terminal;
the power supply connecting terminal is respectively connected with the positive electrode and the negative electrode of the energy storage module and is used for forming an electric energy output loop after the high-voltage interlocking connector is connected with the energy storage module;
The interlocking terminal is used for forming an interlocking signal loop after the high-voltage interlocking connector is connected with the energy storage module so as to output a low-voltage interlocking signal, and the low-voltage interlocking signal is used for indicating whether the connection state of the electric energy output loop is normal or not.
Optionally, the power-on control circuit includes a battery management module and a switching device, where the battery management module is electrically connected with the interlocking signal loop and is used to close the switching device according to the low-voltage interlocking signal output by the interlocking signal loop to power up the electric equipment.
Optionally, the power-on detection circuit comprises an acquisition circuit, a comparison circuit and a power-on result display circuit;
the acquisition circuit is used for acquiring the voltage output by the power-on control circuit through a voltage dividing resistor, performing operation processing on the acquired voltage through a differential operational amplifier and outputting detection voltage;
The comparison circuit is electrically connected with the acquisition circuit and is used for comparing the received detection voltage with a reference voltage and outputting a corresponding level signal according to a comparison result;
The power-on result display circuit is electrically connected with the comparison circuit and is used for controlling the light-emitting device in the power-on result display circuit to emit light when the electric equipment is in a normal power-on state according to the received level signal.
Optionally, the acquisition circuit comprises a first voltage dividing resistor, a second voltage dividing resistor, a third voltage dividing resistor, a fourth voltage dividing resistor and a differential operational amplifier;
One end of the first voltage dividing resistor is electrically connected with the first output end of the power-on control circuit, and the other end of the first voltage dividing resistor is electrically connected with one end of the second voltage dividing resistor and the first input end of the differential operational amplifier respectively;
the other end of the second voltage dividing resistor is grounded;
One end of the third voltage dividing resistor is electrically connected with the second output end of the power-on control circuit, and the other end of the third voltage dividing resistor is electrically connected with one end of the fourth voltage dividing resistor and the second input end of the differential operational amplifier respectively;
and the output end of the differential operational amplifier is electrically connected with the other end of the fourth voltage dividing resistor and the comparison circuit.
Optionally, the acquisition circuit further comprises a first diode and a second diode for preventing reverse connection, and a first high-voltage self-recovery fuse and a second high-voltage self-recovery fuse for protecting the acquisition circuit.
Optionally, the comparing circuit includes a comparator, a first input end of the comparator is electrically connected with an output end of the differential operational amplifier, a second input end of the comparator is electrically connected with a power conversion circuit for providing the reference voltage, and an output end of the comparator is electrically connected with the power-on result display circuit.
Optionally, the power conversion circuit includes a standby power output circuit, a first voltage conversion circuit, and a second voltage conversion circuit;
The first voltage conversion circuit is used for converting a first voltage signal input by the standby power supply output circuit into a second voltage signal required by the differential operational amplifier, the comparator, the second voltage conversion circuit and the power-on result display circuit;
the second voltage conversion circuit is used for converting the second voltage signal into the reference voltage.
Optionally, the power conversion circuit further comprises an input filter circuit and an output filter circuit for reducing high frequency electromagnetic interference.
Optionally, the power-on result display circuit comprises a light emitting diode, a current limiting resistor and a pull-up resistor;
The anode of the light emitting diode is electrically connected with the second voltage signal output end of the first voltage conversion circuit through the current limiting resistor, and the cathode of the light emitting diode is electrically connected with the output end of the comparator;
One end of the pull-up resistor is electrically connected with the output end of the comparator, and the other end of the pull-up resistor is electrically connected with the second voltage signal output end of the first voltage conversion circuit.
According to the power-on circuit of the energy storage system, the plurality of energy storage modules are connected in series through the high-voltage interlocking connector to form the energy storage interlocking circuit, so that the connection state of the high-voltage electric energy output circuit is controlled through the closed state of the low-voltage interlocking signal circuit, the risk of electric shock when the high-voltage connector is plugged and unplugged in an electrified state is avoided, the voltage output by the energy storage system is detected through the power-on detection circuit, and when the voltage output by the energy storage system can enable electric equipment to be in the electrified state, power-on warning is provided for an maintainer, and the accident of assembly electric shock is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a power-on circuit of an energy storage system according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a high voltage interlock connector according to an embodiment of the present application;
FIG. 3 is a schematic diagram illustrating connection of a circuit on an energy storage system according to an embodiment of the present application;
Fig. 4 is a schematic diagram of a power conversion circuit according to an embodiment of the application.
Detailed Description
The foregoing and other features, aspects, and advantages of the present application will become more apparent from the following detailed description of the preferred embodiments, which proceeds with reference to the accompanying drawings. While the application may be susceptible to further details of technical means and effects for achieving the desired purpose, there is shown in the drawings a form a further part hereof, and in which is shown by way of illustration and not by way of limitation, certain well-known elements of the application. Like elements are denoted by like reference numerals throughout the various figures. For clarity, the various features of the drawings are not drawn to scale.
FIG. 1 is a schematic diagram of a power-on circuit of an energy storage system according to an embodiment of the present application; as shown in fig. 1, the power-on circuit of the energy storage system provided by the application comprises an energy storage interlocking circuit 110, a power-on control circuit 120 and a power-on detection circuit 130.
The energy storage interlock circuit 110 includes a plurality of energy storage modules (such as PACK 1-PACKn in fig. 1) and a high voltage interlock connector 111, and the plurality of energy storage modules are connected in series through the high voltage interlock connector 111; the power-on control circuit 120 is electrically connected with the energy storage interlocking circuit 110, and is configured to output the electric energy stored in the energy storage interlocking circuit 110 to the electric device, so as to power on the electric device; the power-on detection circuit 130 is electrically connected to the power-on control circuit 120, and is configured to detect whether the electric energy output by the power-on control circuit 120 maintains the electric equipment in a normal power-on state according to the voltage output by the power-on control circuit 120.
In order to avoid the risk of electric shock when the high-voltage connector is plugged in and plugged out in an electrified state, in the embodiment of the present application, a plurality of energy storage modules are connected in series to form a high-voltage interlocking loop by adopting a high-voltage interlocking connector 111 as shown in fig. 2. The high voltage interlocking connector 111 generally comprises a socket and a plug, wherein the socket and the plug both comprise a power connection terminal and an interlocking terminal, the socket is generally installed with the energy storage module, and the energy storage module and the power-on control circuit 120 are connected by plugging in and plugging out the plug. The length of the power connection terminal is larger than that of the interlocking terminal, so that when the plug is plugged in, the power connection terminal is firstly connected, then the interlocking terminal is connected, and when the plug is unplugged, the interlocking terminal is firstly disconnected, and then the power connection terminal is disconnected; the power supply connecting terminal comprises a power supply positive electrode connecting terminal and a power supply negative electrode connecting terminal, which are respectively connected with the positive electrode and the negative electrode of the energy storage module, and an electric energy output loop is formed after the high-voltage interlocking connector 111 is connected with the energy storage module; an interlock signal loop is formed after the high-voltage interlock connector 111 is connected with the energy storage module through the interlock terminal to output a low-voltage interlock signal for indicating whether the connection state of the power output loop is normal. Specifically, when the high-voltage plug is plugged in, since the power supply connection terminal of the high-voltage plug is plugged in before the middle interlocking terminal, whether the high-voltage plug is successfully connected can be judged by whether the interlocking terminal is connected, after the high-voltage plug is normally connected, the interlocking terminal is in a connection state, an interlocking signal loop formed by a low-voltage signal wire connected with the interlocking terminal feeds back a low-voltage interlocking signal to the power-on control circuit 120, so that the power-on control circuit indicates that the energy storage module is successfully connected, and can power on electric equipment; when the high-voltage plug is disconnected, the middle interlocking terminal is disconnected before the high-voltage power supply connecting terminal, the power-on control circuit 120 cannot receive the low-voltage interlocking signal, and the power-on control module immediately performs power-off operation on the electric equipment at the moment, so that arc discharge in a high-voltage environment is avoided, and the risk of electric shock of the high-voltage plug connector is reduced.
FIG. 3 is a schematic diagram illustrating connection of a circuit on an energy storage system according to an embodiment of the present application; as shown in fig. 3, the power-on control circuit 120 includes a battery management module 121 and a switching device 122, where the battery management module 121 is electrically connected with the interlocking signal circuit, and is configured to close the switching device 122 according to a low-voltage interlocking signal output by the interlocking signal circuit, so as to power up the electric device. Specifically, the battery management module 121 may close the switching device 122 when there is a power-on demand only when the interlock signal loop is closed, i.e., a low-voltage interlock signal may be received, and the switching device 122 may be a circuit breaker or a high-voltage contactor, which is not limited in the present application. When the high voltage interlock connector 111 falls off, the interlock signal loop is in an open state, the battery management module 121 cannot receive the low voltage interlock signal, and at this time, even if there is a power-on demand, the battery management module 121 does not perform a closing operation on the switching device 122 to power the electric device.
In order to avoid failure of the energy storage system and incapability of smoothly powering down the electric equipment when power-down requirements exist, the power-up state of the energy storage system is detected by arranging the power-up detection circuit 130 in the power-up circuit of the energy storage system, and corresponding power-up warning is provided for a user when the energy storage system is powered up, so that the risk of electric shock during assembly is reduced. Specifically, the power-on detection circuit 130 may include an acquisition circuit 131, a comparison circuit 132, and a power-on result display circuit 133; the acquisition circuit 131 is configured to acquire the voltage output by the power-on control circuit 120 through a voltage dividing resistor, perform operation processing on the acquired voltage through a differential operational amplifier U1, and output a detection voltage; the comparing circuit 132 is electrically connected to the collecting circuit 131, and is configured to compare the received detection voltage with a reference voltage, and output a corresponding level signal according to a comparison result; the power-on result display circuit 133 is electrically connected to the comparison circuit 132, and is configured to control the light emitting device in the power-on result display circuit 133 to emit light when the electric device is in a normal power-on state according to the received level signal.
The collecting circuit 131 includes a first voltage dividing resistor R1, a second voltage dividing resistor R2, a third voltage dividing resistor R3, a fourth voltage dividing resistor R4, and a differential operational amplifier U1. One end of the first voltage dividing resistor R1 is electrically connected to the first output end of the power-on control circuit 120, and the other end of the first voltage dividing resistor R1 is electrically connected to one end of the second voltage dividing resistor R2 and the first input end of the differential operational amplifier U1, respectively; the other end of the second voltage division resistor R2 is grounded; one end of the third voltage dividing resistor R3 is electrically connected to the second output end of the power-on control circuit 120, and the other end of the third voltage dividing resistor R3 is electrically connected to one end of the fourth voltage dividing resistor R4 and the second input end of the differential operational amplifier U1, respectively; the output end of the differential operational amplifier U1 is electrically connected to the other end of the fourth voltage dividing resistor R4 and the comparison circuit 132. In order to ensure that the collecting circuit 131 can work normally and stably, in other embodiments of the present application, the collecting circuit 131 further includes a first diode D1 and a second diode D2 for preventing reverse connection, and a first high-voltage self-recovery fuse Fu1 and a second high-voltage self-recovery fuse Fu2 for protecting the collecting circuit 131. The anode of the first diode D1 is electrically connected to one end of the high voltage positive electrode of the power-on control circuit 120, the cathode of the first diode D1 is connected to the first voltage dividing resistor R1 through the first high voltage self-recovery fuse Fu1, the cathode of the second diode D2 is electrically connected to one end of the high voltage negative electrode of the power-on control circuit 120, and the anode of the second diode D2 is connected to the third voltage dividing resistor R3 through the second high voltage self-recovery fuse Fu2.
The comparing circuit 132 includes a comparator U2, a first input end of the comparator U2 is electrically connected to an output end of the differential operational amplifier U1, a second input end of the comparator U2 is electrically connected to a power conversion circuit that provides the reference voltage, and an output end of the comparator U2 is electrically connected to the power-on result display circuit 133.
Fig. 4 is a schematic structural diagram of a power conversion circuit according to an embodiment of the present application; as shown in fig. 4, in an embodiment of the present application, the power conversion circuit may include a standby power output circuit 210, a first voltage conversion circuit 220, and a second voltage conversion circuit 230. The first voltage conversion circuit 220 is configured to convert a first voltage signal input by the standby power output circuit 210 into a second voltage signal VCC required by the differential operational amplifier U1, the comparator U2, the second voltage conversion circuit 230, and the power-on result display circuit 133; the second voltage conversion circuit 230 is configured to convert the second voltage signal VCC into the reference voltage VREF. In this embodiment, the voltage of the first voltage signal is higher than the second voltage signal VCC, and the voltage of the second voltage signal VCC is higher than the reference voltage VREF. In other embodiments of the present application, to ensure that the power conversion circuit can output a more stable reference voltage VREF, the power conversion circuit further includes an input filter circuit 240 and an output filter circuit 250 for reducing high frequency electromagnetic interference.
The power-on result display circuit 133 includes a light emitting diode LED, a current limiting resistor R5, and a pull-up resistor R6. The anode of the light emitting diode LED is electrically connected with the second voltage signal output end of the first voltage conversion circuit 220 through the current limiting resistor R5, and the cathode of the light emitting diode LED is electrically connected with the output end of the comparator U2; one end of the pull-up resistor R6 is electrically connected to the output end of the comparator U2, and the other end of the pull-up resistor R6 is electrically connected to the second voltage signal output end of the first voltage conversion circuit 220.
For example, to ensure the balance of the voltage dividing resistor network in the collecting circuit 131, the resistance of the first voltage dividing resistor R1 is generally equal to the resistance of the third voltage dividing resistor R3, the resistance of the second voltage dividing resistor R2 is equal to the resistance of the fourth voltage dividing resistor R4, and the detection voltage V OUT＝(VH+-VH-) ×r2/(r1+r2) output by the differential operational amplifier U1. Assume that the minimum voltage output by the tank interlock circuit 110 in the embodiment of the present application is 240V; the ratio of R2/(R1+R2) is 0.01, the reference voltage VREF output by the power conversion circuit is set to 2.4V. When the detected voltage output by the acquisition circuit 131 is greater than or equal to the reference voltage VREF, the level signal output by the comparison circuit 132 is a low level signal, at this time, the light emitting diode LED in the power-on result display circuit 133 is turned on to indicate that the electric equipment is in a power-on state, and when the detected voltage output by the acquisition circuit 131 is less than the reference voltage VREF, the level signal output by the comparison circuit 132 is a high level signal, at this time, the light emitting diode LED in the power-on result display circuit 133 is not turned on to indicate that the electric equipment is in a power-off state.
In summary, according to the power-on circuit of the energy storage system, the plurality of energy storage modules are connected in series through the high-voltage interlocking connector to form the energy storage interlocking circuit, so that the connection state of the high-voltage electric energy output circuit is controlled through the closed state of the low-voltage interlocking signal circuit, the risk of electric shock when the high-voltage connector is plugged and unplugged in an electrified state is avoided, the voltage output by the energy storage system is detected through the power-on detection circuit, and when the voltage output by the energy storage system can enable electric equipment to be in the electrified state, power-on warning is provided for an maintainer, and the accident of assembly electric shock is avoided.
In the description of the present application, unless explicitly stated and limited otherwise, the terms "first," "second," "third," and the like are merely used for distinguishing between similar elements and not for indicating or implying a relative importance or a particular order. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a list of elements does not include only those elements but may include other elements not expressly listed.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present application should be included in the present application.
Claims (10)
1. The power-on circuit of the energy storage system is characterized by comprising an energy storage interlocking circuit, a power-on control circuit and a power-on detection circuit;
The energy storage interlocking circuit comprises a plurality of energy storage modules and a high-voltage interlocking connector, and the plurality of energy storage modules are connected in series through the high-voltage interlocking connector;
The power-on control circuit is electrically connected with the energy storage interlocking circuit and is used for outputting the electric energy stored by the energy storage interlocking circuit to electric equipment so as to power on the electric equipment;
The power-on detection circuit is electrically connected with the power-on control circuit and is used for detecting whether the electric energy output by the power-on control circuit maintains the electric equipment in a normal power-on state according to the voltage output by the power-on control circuit.
2. The energy storage system power up circuit of claim 1, wherein the high voltage interlock connector comprises a power connection terminal and an interlock terminal, the power connection terminal having a length greater than a length of the interlock terminal;
the power supply connecting terminal is respectively connected with the positive electrode and the negative electrode of the energy storage module and is used for forming an electric energy output loop after the high-voltage interlocking connector is connected with the energy storage module;
The interlocking terminal is used for forming an interlocking signal loop after the high-voltage interlocking connector is connected with the energy storage module so as to output a low-voltage interlocking signal, and the low-voltage interlocking signal is used for indicating whether the connection state of the electric energy output loop is normal or not.
3. The power-on circuit of the energy storage system according to claim 2, wherein the power-on control circuit comprises a battery management module and a switching device, the battery management module is electrically connected with the interlocking signal loop and is used for closing the switching device according to a low-voltage interlocking signal output by the interlocking signal loop to power up the electric equipment.
4. The energy storage system power-up circuit of claim 3, wherein the power-up detection circuit comprises an acquisition circuit, a comparison circuit and a power-up result display circuit;
the acquisition circuit is used for acquiring the voltage output by the power-on control circuit through a voltage dividing resistor, performing operation processing on the acquired voltage through a differential operational amplifier and outputting detection voltage;
The comparison circuit is electrically connected with the acquisition circuit and is used for comparing the received detection voltage with a reference voltage and outputting a corresponding level signal according to a comparison result;
The power-on result display circuit is electrically connected with the comparison circuit and is used for controlling the light-emitting device in the power-on result display circuit to emit light when the electric equipment is in a normal power-on state according to the received level signal.
5. The energy storage system power-up circuit of claim 4, wherein the acquisition circuit comprises a first voltage dividing resistor, a second voltage dividing resistor, a third voltage dividing resistor, a fourth voltage dividing resistor, and a differential operational amplifier;
One end of the first voltage dividing resistor is electrically connected with the first output end of the power-on control circuit, and the other end of the first voltage dividing resistor is electrically connected with one end of the second voltage dividing resistor and the first input end of the differential operational amplifier respectively;
the other end of the second voltage dividing resistor is grounded;
One end of the third voltage dividing resistor is electrically connected with the second output end of the power-on control circuit, and the other end of the third voltage dividing resistor is electrically connected with one end of the fourth voltage dividing resistor and the second input end of the differential operational amplifier respectively;
and the output end of the differential operational amplifier is electrically connected with the other end of the fourth voltage dividing resistor and the comparison circuit.
6. The energy storage system power up circuit of claim 5, wherein the harvesting circuit further comprises a first diode and a second diode for anti-reverse connection, and a first high voltage self-recovery fuse and a second high voltage self-recovery fuse for protecting the harvesting circuit.
7. The power-on circuit of claim 5 or 6, wherein the comparing circuit comprises a comparator, a first input terminal of the comparator is electrically connected to an output terminal of the differential operational amplifier, a second input terminal of the comparator is electrically connected to a power conversion circuit that provides the reference voltage, and an output terminal of the comparator is electrically connected to the power-on result display circuit.
8. The energy storage system power up circuit of claim 7, wherein the power conversion circuit comprises a standby power output circuit, a first voltage conversion circuit, and a second voltage conversion circuit;
The first voltage conversion circuit is used for converting a first voltage signal input by the standby power supply output circuit into a second voltage signal required by the differential operational amplifier, the comparator, the second voltage conversion circuit and the power-on result display circuit;
the second voltage conversion circuit is used for converting the second voltage signal into the reference voltage.
9. The energy storage system power up circuit of claim 8, wherein the power conversion circuit further comprises an input filter circuit and an output filter circuit for reducing high frequency electromagnetic interference.
10. The energy storage system power-up circuit of claim 8, wherein the power-up result display circuit comprises a light emitting diode, a current limiting resistor, and a pull-up resistor;
The anode of the light emitting diode is electrically connected with the second voltage signal output end of the first voltage conversion circuit through the current limiting resistor, and the cathode of the light emitting diode is electrically connected with the output end of the comparator;
One end of the pull-up resistor is electrically connected with the output end of the comparator, and the other end of the pull-up resistor is electrically connected with the second voltage signal output end of the first voltage conversion circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323663657.XU CN221652284U (en) | 2023-12-29 | 2023-12-29 | Energy storage system power-on circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323663657.XU CN221652284U (en) | 2023-12-29 | 2023-12-29 | Energy storage system power-on circuit |
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| Publication Number | Publication Date |
|---|---|
| CN221652284U true CN221652284U (en) | 2024-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323663657.XU Active CN221652284U (en) | 2023-12-29 | 2023-12-29 | Energy storage system power-on circuit |
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| CN (1) | CN221652284U (en) |
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2023
- 2023-12-29 CN CN202323663657.XU patent/CN221652284U/en active Active
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