Search

CN-224204772-U - Integrated circuit breaker applied to energy storage confluence cabinet and energy storage confluence cabinet

CN224204772UCN 224204772 UCN224204772 UCN 224204772UCN-224204772-U

Abstract

The utility model discloses an integrated circuit breaker applied to an energy storage confluence cabinet and the energy storage confluence cabinet, comprising an electric energy detection module, a circuit breaker and a control circuit, wherein the circuit breaker is connected between a power grid and a load, the electric energy detection module is connected with the circuit breaker, and the electric energy parameter on the circuit breaker is consistent with the electric energy parameter on a circuit between the power grid and the load, so that the electric energy detection module is connected with the circuit breaker, namely, the electric energy parameter on the circuit can be detected, and in addition, the control circuit is connected with a BAU, and the electric energy parameter is transmitted to the BAU so as to enable the BAU to display the electric energy parameter. The electric energy detection module, the circuit breaker and the control circuit are integrated into one circuit breaker, the distance between the devices of each part in the circuit breaker is smaller, and the BAU is multiplexed to display the electric energy parameters, so that the protection effect on the circuit between the power grid and the load can be achieved, the space occupation of the energy storage bus cabinet can be reduced, and the volume of the energy storage bus cabinet is reduced.

Inventors

  • LIU YONG
  • OUYANG ZHIYONG
  • ZHAO SHUN

Assignees

  • 杭州协能科技股份有限公司

Dates

Publication Date
20260505
Application Date
20250314

Claims (10)

  1. 1. The integrated circuit breaker applied to the energy storage bus cabinet is characterized by comprising an electric energy detection module, a circuit breaker switch and a control circuit; The first end of the circuit breaker is connected with the power grid, and the second end of the circuit breaker is connected with the load; the control circuit comprises a control circuit, an electric energy detection module, a BAU battery array management unit, a control circuit and a control circuit, wherein the electric energy detection module is connected with the circuit breaker; The control circuit is used for transmitting the electric energy parameters of the circuit between the power grid and the load, which are acquired by the electric energy detection module, to the BAU so that the BAU displays the electric energy parameters, and the circuit breaking switch is used for being turned off when the circuit between the power grid and the load is abnormal.
  2. 2. The integrated circuit breaker for use in an energy storage busway of claim 1, wherein the power detection module comprises a current detection module; The input end of the current detection module is connected with the circuit breaking switch, and the output end of the current detection module is connected with the first input end of the control circuit and is used for collecting current on a circuit between the power grid and the load.
  3. 3. The integrated circuit breaker of claim 2, wherein the current detection module comprises a current sensor having a primary coil wound around a wire between the grid and the circuit breaker for sensing current in a circuit between the grid and a load, and a secondary coil connected to a first input of the control circuit for sensing current in the primary coil and transmitting the current to the control circuit.
  4. 4. The integrated circuit breaker for use in an energy storage bustle as in claim 1, wherein said circuit breaker comprises a first current collection transformer, a second current collection transformer, a third current collection transformer, contacts of a first circuit breaker, contacts of a second circuit breaker, contacts of a third circuit breaker, contacts of a fourth circuit breaker, and a trip; The contact of the first circuit breaker is connected between a first alternating-current phase line of the power grid and a first alternating-current phase line of the load, the contact of the second circuit breaker is connected between a second alternating-current phase line of the power grid and a second alternating-current phase line of the load, the contact of the third circuit breaker is connected between a third alternating-current phase line of the power grid and a third alternating-current phase line of the load, and the contact of the fourth circuit breaker is connected between a zero line of the power grid and a zero line of the load; The primary coil of the first current acquisition transformer is wound on a wire between a first alternating-current phase line of the power grid and a first alternating-current phase line of the load and is used for inducing current between the first alternating-current phase line of the power grid and the first alternating-current phase line of the load; the primary coil of the third current acquisition transformer is wound on a wire between a third alternating-current phase line of the power grid and a third alternating-current phase line of the load and is used for inducing current between the third alternating-current phase line of the power grid and the third alternating-current phase line of the load; The secondary coil of the first current acquisition transformer, the secondary coil of the second current acquisition transformer and the secondary coil of the third current acquisition transformer are connected with the input end of the release and are used for transmitting currents on the primary coil of the first current acquisition transformer, the primary coil of the second current acquisition transformer and the primary coil of the third current acquisition transformer to the release; The output end of the release is respectively connected with the contact of the first circuit breaker, the contact of the second circuit breaker, the contact of the third circuit breaker and the control end of the contact of the fourth circuit breaker, and is used for controlling the contact of the first circuit breaker, the contact of the second circuit breaker, the contact of the third circuit breaker and the contact of the fourth circuit breaker to be turned off when the current between any one AC phase line between the power grid and the load is larger than a preset current threshold value.
  5. 5. The integrated circuit breaker for use in an energy storage busway of claim 4, wherein the power detection module comprises a voltage detection module; The first input end of the voltage detection module is connected with the contact of the first circuit breaker, the second input end of the voltage detection module is connected with the contact of the second circuit breaker, the third input end of the voltage detection module is connected with the contact of the third circuit breaker, and the output end of the voltage detection module is connected with the first input end of the control circuit and is used for collecting the voltage difference between at least two alternating-current phase lines on a circuit between the power grid and the load and transmitting the voltage difference to the control circuit.
  6. 6. The integrated circuit breaker for use in an energy storage busway of claim 5, further comprising a first fuse, a second fuse, and a third fuse; The first fuse is connected between the contact of the first disconnection switch and the first input end of the voltage detection module, the second fuse is connected between the contact of the second disconnection switch and the second input end of the voltage detection module, and the third fuse is connected between the contact of the third disconnection switch and the third input end of the voltage detection module; The first fuse, the second fuse and the third fuse are used for being disconnected when the current flowing through the first fuse is larger than the protection current.
  7. 7. The integrated circuit breaker for use in an energy storage bustle as recited in claim 1, further comprising an alarm module; The alarm module is connected with the control circuit and used for giving an alarm when the control circuit determines that the electric energy parameter is abnormal.
  8. 8. The integrated circuit breaker for use in an energy storage closet of any of claims 1-7, wherein the control circuit comprises an electrical energy parameter acquisition module and a control module; The input end of the electric energy parameter acquisition module is connected with the output end of the electric energy detection module and is used for acquiring the electric energy parameter of the circuit between the power grid and the load acquired by the electric energy detection module; The input end of the control module is connected with the output end of the electric energy parameter acquisition module and is used for transmitting the electric energy parameters of the circuit between the power grid and the load acquired by the electric energy detection module to the BAU.
  9. 9. The integrated circuit breaker of claim 8, wherein the control circuit further comprises a communication module, wherein the control module is connected with a control end of the circuit breaker, and wherein the communication module is connected with the control module and the BAU; The control module transmits the electric energy parameters to the BAU through the communication module, and the BAU transmits the received breaker turn-off instruction to the control circuit through the communication module, so that the control circuit controls the breaking switch to be turned off when receiving the breaker turn-off instruction.
  10. 10. An energy storage busway characterized by comprising an integrated circuit breaker as claimed in any of claims 1-9 for use in an energy storage busway.

Description

Integrated circuit breaker applied to energy storage confluence cabinet and energy storage confluence cabinet Technical Field The utility model relates to the field of electric energy conversion, in particular to an integrated circuit breaker applied to an energy storage bus cabinet and the energy storage bus cabinet. Background The energy storage conflux cabinet generally comprises a battery cluster conflux module and a low-voltage distribution module, wherein the battery cluster conflux module conflux direct current output by a plurality of groups of parallel battery clusters in the energy storage system to a direct current bus to form uniform direct current output and transmit the uniform direct current output to the voltage conversion module so that the voltage conversion module converts the direct current on the direct current bus into alternating current and then is connected with a grid, the low-voltage distribution unit is connected between the grid and a load and comprises a breaker and a multifunctional electric energy meter, the multifunctional electric energy meter is used for collecting and displaying electric energy parameters of a circuit between the grid and the load, and when the circuit between the grid and the load is abnormal, such as overcurrent or overload abnormality, the breaker is automatically disconnected to protect the circuit. In the prior art, the functions of the circuit breaker and the multifunctional electric energy meter in the low-voltage power distribution unit are mutually decoupled, so that the circuit breaker and the multifunctional electric energy meter are arranged in a scattered manner on hardware, namely, a larger space exists between the circuit breaker and the multifunctional meter, the internal space of the energy storage bus cabinet is occupied to be larger, the volume of the energy storage bus cabinet is further larger, and the installation and the application of the energy storage bus cabinet are inconvenient. Disclosure of utility model The utility model aims to provide an integrated circuit breaker applied to an energy storage bus cabinet and the energy storage bus cabinet, wherein an electric energy detection module, a circuit breaker switch and a control circuit are integrated into one circuit breaker, the distance between parts of devices in the circuit breaker is smaller, and a BAU is multiplexed to display electric energy parameters, so that the circuit between a power grid and a load can be protected, the space occupation of the energy storage bus cabinet can be reduced, and the volume of the energy storage bus cabinet is reduced. In order to solve the technical problems, the utility model provides an integrated circuit breaker applied to an energy storage bus cabinet, which comprises an electric energy detection module, a circuit breaker switch and a control circuit; The first end of the circuit breaker is connected with the power grid, and the second end of the circuit breaker is connected with the load; the control circuit comprises a control circuit, an electric energy detection module, a BAU battery array management unit, a control circuit and a control circuit, wherein the electric energy detection module is connected with the circuit breaker; The control circuit is used for transmitting the electric energy parameters of the circuit between the power grid and the load, which are acquired by the electric energy detection module, to the BAU so that the BAU displays the electric energy parameters, and the circuit breaking switch is used for being turned off when the circuit between the power grid and the load is abnormal. Preferably, the power detection module comprises a current detection module; The input end of the current detection module is connected with the circuit breaking switch, and the output end of the current detection module is connected with the first input end of the control circuit and is used for collecting current on a circuit between the power grid and the load. Preferably, the current detection module comprises a current sensor, wherein a primary coil of the current sensor is wound on a wire between the power grid and the circuit breaker and used for sensing current on a circuit between the power grid and a load, and a secondary coil of the current sensor is connected with a first input end of the control circuit and used for sensing current on the primary coil and transmitting the current to the control circuit. Preferably, the circuit breaker comprises a first current collection transformer, a second current collection transformer, a third current collection transformer, a contact of the first circuit breaker, a contact of the second circuit breaker, a contact of the third circuit breaker, a contact of the fourth circuit breaker and a release; The contact of the first circuit breaker is connected between a first alternating-current phase line of the power grid and a first alternating-current phase line of the load, the contac