Search

CN-116409154-B - Maintenance switch, maintenance switch control method, and storage medium

CN116409154BCN 116409154 BCN116409154 BCN 116409154BCN-116409154-B

Abstract

The application provides a maintenance switch, a maintenance switch control method and a storage medium. The maintenance switch comprises an upper box body, a lower box body, a first locking piece, an identity information input device and a controller, wherein the upper box body comprises a first high-voltage terminal, the lower box body is detachably connected with the upper box body, the lower box body comprises a second high-voltage terminal used for being electrically connected with the first high-voltage terminal, the first locking piece is used for locking the upper box body and the lower box body, the identity information input device is used for receiving identity information input of an operator and verifying the identity information input by the operator, and the controller is used for controlling the first locking piece for unlocking the maintenance switch to enable the upper box body and the lower box body to be detachable in response to the fact that the first identity verification information of the operator passes and a high-voltage system of equipment to be maintained is in a non-working state. By the scheme of the application, an operator with only authority can unlock or lock the maintenance switch in the maintenance process, and safety accidents such as electric shock and the like of the operator can be avoided by operating the maintenance switch by other operators.

Inventors

  • WU XINGCHI
  • TAN JIGANG
  • MA AIGUO

Assignees

  • 比亚迪股份有限公司
  • 青岛市比亚迪汽车有限公司

Dates

Publication Date
20260505
Application Date
20211231

Claims (20)

  1. 1. A service switch, the service switch comprising: An upper case including a first high voltage terminal; A lower case detachably connected with the upper case, the lower case including a second high voltage terminal for electrically connecting with the first high voltage terminal; The first locking piece is used for locking the upper box body and the lower box body; the identity information input device is used for receiving the identity information input of the operator and verifying the identity information input by the operator; The controller is used for controlling the first locking piece of the unlocking maintenance switch to enable the upper box body and the lower box body to be separable in response to the fact that the first identity verification information of the operator passes and the high-voltage system of the equipment to be maintained is in a non-working state; the sealing cover structure is arranged on the lower box body and used for sealing or opening the second high-voltage terminal; the controller is further used for controlling the cover sealing structure to cover the second high-voltage terminal after the upper box body and the lower box body are separated; The device comprises an upper box body, a lower box body, a first locking piece, a second locking piece and a controller, wherein the first locking piece is used for detecting whether the upper box body is separated from the lower box body or not, the first locking piece comprises a pin and a connector, the pin is fixed on the upper box body and extends out of the surface of the upper box body, which faces the lower box body, the connector is located on the lower box body, when the pin is inserted into the connector, the first locking piece generates an interlocking signal, when the pin is separated from the connector, the interlocking signal of the first locking piece is disconnected, and the controller can judge whether the upper box body and the lower box body are separated or not according to the interlocking signal.
  2. 2. The service switch of claim 1, wherein said controller is further configured to open said second high voltage terminal by controlling said cover structure to connect said upper housing to said lower housing in response to second authentication information of said operator, and And after the upper box body is connected with the lower box body, controlling the first locking piece to lock the upper box body and the lower box body.
  3. 3. The service switch of claim 1, wherein the service switch includes a memory for storing the identity information.
  4. 4. The service switch of claim 1, wherein the first locking member includes a projection structure located on the upper case and a locking tab located on the lower case, the projection structure being provided with a locking hole, the projection structure extending into the lower case when the upper case is closed with the lower case, the locking tab extending into the locking hole of the projection structure, the upper case being separable from the lower case when the locking tab extends out of the locking hole.
  5. 5. The service switch of claim 4, further comprising a first motor; the controller is also used for responding to the passing of the second identity verification information of the operator, controlling the first motor to drive the lock tongue to rotate, enabling the lock tongue to unscrew from the locking hole, enabling the upper box body and the lower box body to be separated, and controlling the first motor to drive the lock tongue to insert into the locking hole, enabling the upper box body to be locked on the lower box body.
  6. 6. The service switch of claim 2, wherein the cover structure further comprises a cover plate and a second motor; the second motor is used for driving the cover plate to slide to a first position or a second position; The cover plate is positioned on the lower box body and is provided with a through hole, when the cover plate is positioned at the first position, the first high-voltage terminal penetrates through the through hole and is connected with the second high-voltage terminal, and when the cover plate is positioned at the second position, the second high-voltage terminal is covered by the cover plate; The controller is also used for controlling the second motor to start so that the second motor drives the cover plate to slide to the first position or the second position.
  7. 7. The maintenance switch according to claim 1, wherein a lower end of the second high voltage terminal is provided with a high voltage connector for connecting a load.
  8. 8. The service switch of claim 1, further comprising an indicator light for alerting the operator whether the service switch is currently in an openable or closable state.
  9. 9. The maintenance switch of claim 1, wherein the authentication information includes at least one of a password, a fingerprint, an iris, and a voiceprint.
  10. 10. A maintenance switch control method is characterized in that the maintenance switch comprises an upper box body, a lower box body, a first locking piece, a sealing cover structure and a second locking piece, the upper box body comprises a first high-voltage terminal, the lower box body comprises a second high-voltage terminal used for being electrically connected with the first high-voltage terminal, the first locking piece is used for locking the upper box body and the lower box body, the sealing cover structure is arranged on the lower box body and used for sealing or opening the second high-voltage terminal, the second locking piece is used for detecting whether the upper box body and the lower box body are separated or not, the second locking piece comprises a pin and a connector, the pin is fixed on the upper box body and extends out of the surface of the upper box body, which faces the lower box body, the connector is located on the lower box body, when the pin is inserted into the connector, the second locking piece is used for locking the upper box body and the lower box body, when the pin is separated from the connector, the second locking piece is disconnected, and the method comprises the steps of locking the second locking piece. Controlling to unlock the first locking piece so that the upper box body and the lower box body can be separated in response to the first identity verification information of an operator passing through and the high-voltage system of equipment to be maintained being in a non-working state; controlling the capping structure to cap the second high voltage terminal in response to the interlocking signal of the second locking member being disconnected; And responding to the passing of second identity verification information of the operator, and controlling the locking of the first locking piece so as to lock the upper box body and the lower box body.
  11. 11. The method of claim 10, wherein the capping structure comprises a cover plate for capping or opening the second high voltage terminal; after controlling unlocking the first locking member, the method further comprises; And controlling the cover plate of the cover structure to slide to a first position so that the cover plate covers the second high-voltage terminal.
  12. 12. The method of claim 11, wherein prior to controlling locking the first locking member, the method further comprises: and controlling the cover plate of the cover structure to slide to a second position so that the cover plate opens the second high-voltage terminal.
  13. 13. The method of claim 10, wherein prior to controlling unlocking the first latch, the method further comprises: Detecting whether an interlocking signal is valid, wherein the interlocking signal effectively characterizes the maintenance switch to be closed.
  14. 14. The method of claim 11, wherein prior to controlling unlocking the first latch, the method further comprises: And detecting whether the high-voltage system is in a working state or not when the interlocking signal is valid.
  15. 15. The method of claim 14, wherein after detecting whether the high voltage system is in operation, the method further comprises: When the high-voltage system is in a working state, the high-voltage system is controlled to stop working so as to disconnect the high-voltage loop.
  16. 16. The method of claim 15, wherein prior to opening the high pressure circuit, the method further comprises: detecting whether the equipment to be maintained is in a working state or not, and And when the equipment to be maintained is in a working state, controlling the equipment to be maintained to stop working.
  17. 17. The method of claim 10, wherein verifying the first authentication information of the operator comprises: acquiring first identity verification information of the operator acquired by an input device; Comparing the first authentication information with the third authentication information which is input in advance, and when the first authentication information is consistent with the third authentication information, passing the first authentication information.
  18. 18. The method of claim 10, wherein verifying the second authentication information of the operator comprises: Acquiring the second identity verification information acquired by the input device; Comparing the second identity verification information with the third identity verification information which is input in advance, and when the second identity verification information is consistent with the third identity verification information, passing the second identity verification information.
  19. 19. The method of claim 16, wherein the equipment to be serviced comprises a vehicle; detecting whether the equipment to be maintained is in a working state comprises: detecting whether the current speed of the vehicle is 0, and determining that the vehicle is in a non-working state when the current speed is 0.
  20. 20. The method of claim 10, wherein the first authentication information, the second authentication information, and the third authentication information each comprise at least one of a password, a fingerprint, an iris, and a voiceprint.

Description

Maintenance switch, maintenance switch control method, and storage medium Technical Field The present application relates to the field of control methods, and more particularly, to a maintenance switch, a maintenance switch control method, and a storage medium. Background The new energy automobile uses a power battery as a power source, and is provided with a high-voltage system, so that the high-voltage safety problem needs to be paid attention to during maintenance. The high-voltage maintenance switch is configured on the high-voltage system of the new energy automobile, and can be manually closed during maintenance so as to disconnect the high-voltage system and ensure the personal safety of maintenance personnel. In the related art, after the high-voltage maintenance switch is turned off, if any person mistakenly turns on the maintenance switch during maintenance of the maintenance personnel, safety accidents such as electric shock and the like can possibly occur to the maintenance personnel. Disclosure of Invention The present application has been made to solve the above-described problems. According to an aspect of the present application, there is provided a maintenance switch including: An upper case including a first high voltage terminal; A lower case detachably connected with the upper case, the lower case including a second high voltage terminal for electrically connecting with the first high voltage terminal; The first locking piece is used for locking the upper box body and the lower box body; the identity information input device is used for receiving the identity information input of the operator and verifying the identity information input by the operator; And the controller is used for controlling the first locking piece of the unlocking maintenance switch to enable the upper box body and the lower box body to be separable in response to the fact that the first identity verification information of the operator passes and the high-voltage system of the equipment to be maintained is in a non-working state. In one embodiment of the application, the maintenance switch further comprises a cover structure, a first high-voltage terminal and a second high-voltage terminal, wherein the cover structure is arranged on the lower box body and used for covering or opening the second high-voltage terminal; The controller is also used for controlling the cover sealing structure to cover the second high-voltage terminal after the upper box body and the lower box body are separated. In one embodiment of the application, the controller is further configured to open the second high voltage terminal by controlling the capping structure to connect the upper case with the lower case in response to second authentication information of the operator, and And after the upper box body is connected with the lower box body, controlling the first locking piece to lock the upper box body and the lower box body. In one embodiment of the application, the service switch comprises a memory for storing the identity information. In one embodiment of the present application, the first locking member includes a protrusion structure located on the upper case and a locking tongue located on the lower case, the protrusion structure is provided with a locking hole, when the upper case is closed with the lower case, the protrusion structure extends into the lower case, the locking tongue extends into the locking hole of the protrusion structure, and when the locking tongue extends out of the locking hole, the upper case is separable from the lower case. In one embodiment of the application, the service switch further comprises a first motor; The controller is also used for responding to the passing of the first identity verification information of the operator, controlling the first motor to start, enabling the first motor to drive the lock tongue to rotate, enabling the lock tongue to unscrew from the first locking piece to enable the upper box body and the lower box body to be separable, and controlling the first motor to drive the lock tongue to insert into the locking hole to enable the upper box body to be locked on the lower box body. In one embodiment of the application, the cover structure further comprises a cover plate and a second motor; the second motor is used for driving the cover plate to slide to a first position or a second position; The cover plate is positioned on the lower box body and is provided with a through hole, when the cover plate is positioned at the first position, the first high-voltage terminal penetrates through the through hole and is connected with the second high-voltage terminal, and when the cover plate is positioned at the second position, the second high-voltage terminal is covered by the cover plate; The controller is also used for controlling the second motor to start so that the second motor drives the cover plate to slide to the first position or the second position. In one embodiment of th