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CN-224204086-U - Active and passive integrated safety device

CN224204086UCN 224204086 UCN224204086 UCN 224204086UCN-224204086-U

Abstract

The utility model discloses an active and passive integrated safety device, which belongs to the technical field of circuit protection devices and comprises a shell, wherein an igniter, a piston, an arc extinguishing chamber and a conductive loop are arranged in the shell, and an active signal source and a passive signal source are also arranged for giving out signals to trigger the igniter to perform ignition action, and the impact force generated by the igniter can drive the piston to move to a blocking position in the direction close to the arc extinguishing chamber so that the piston cuts off the conductive loop. The utility model realizes the coexistence of 'passive' protection and 'active' protection, wherein the 'active' protection mode does not need to depend on an automobile driving computer, the technical problem that the 'passive' protection has a safety leakage is effectively solved, and two power sources share one set of piston and arc extinguishing chamber, so that the volume of the device can be reduced, the space occupied by a circuit cutting device can be reduced, and the cost is reduced.

Inventors

  • LIU CHAOLONG
  • YAO ZHIQI
  • CHEN XIAOQUAN

Assignees

  • 杭州精晟新能源科技有限公司

Dates

Publication Date
20260505
Application Date
20250604

Claims (10)

  1. 1. The utility model provides an active and passive integrated safety device, includes casing (100), be provided with in casing (100) igniter (10), piston (20), explosion chamber (30) and conductive circuit (40), its characterized in that: The device is provided with an active signal source and a passive signal source which are used for giving out signals to trigger the ignition device (10) to perform ignition action, and the impact force generated by the ignition device (10) can drive the piston (20) to move to a blocking position in the direction approaching to the arc extinguishing chamber (30), so that the piston (20) cuts off the conductive loop (40).
  2. 2. The integrated active and passive safety device according to claim 1, wherein the ignition device (10) is one, the ignition device (10) is connected with the signal processor, and the signal processor can receive the active signal source and the passive signal source and output signals to trigger the ignition action of the ignition device (10).
  3. 3. An active and passive integrated safety device according to claim 1, wherein there are two igniters (10), and the two igniters (10) are respectively used for receiving an active signal source and a passive signal source.
  4. 4. The integrated active and passive safety device according to claim 1, wherein the active fusing module (42) is connected with the igniter (10) through an active trigger lead (11), and when the fuse inside the active fusing module (42) is disconnected, the active trigger lead (11) is communicated with the igniter (10) to output an active signal source.
  5. 5. The integrated active and passive safety device according to claim 4, wherein the active fusing module (42) is disposed inside the housing (100), and an arc extinguishing medium (50) is disposed in the housing (100) at a position corresponding to the active fusing module (42).
  6. 6. An active and passive integrated safety device according to claim 5, wherein the quenching medium (50) completely encloses the active fuse module (42).
  7. 7. An active and passive integrated fuse as defined in claim 4 wherein said active fuse module (42) is serially connected to said conductive loop (40).
  8. 8. An active and passive integrated fuse as defined in claim 4 wherein said active fuse module (42) is isolated from an ignition region in which said igniter (10) is located.
  9. 9. The integrated active and passive safety device according to claim 1, wherein the trigger response time of the active signal source for triggering the ignition tool (10) to ignite is less than or equal to 1ms, and the trigger response time of the passive signal source for triggering the ignition tool (10) to ignite is less than or equal to 2ms.
  10. 10. An active and passive integrated safety device according to claim 5 or 6, wherein said quenching medium (50) is selected from any one of quartz sand, metal grid, wire.

Description

Active and passive integrated safety device Technical Field The utility model mainly relates to the technical field of circuit protection devices, in particular to an active and passive integrated safety device. Background The circuit breaking device is used for rapidly breaking the circuit and realizing insulation when encountering safety problems, and the current circuit breaking device can be divided into a traditional fuse and an excitation trigger fuse, wherein the traditional fuse is a device for breaking an electronic circuit after excitation trigger of an electronic signal, and a conductor is broken through a piston to break the circuit. For example, in the patent document with the publication number CN219979438U, a circuit fast-cutting and emptying device is disclosed, an igniter, a piston and a conductor are arranged in a shell, the conductor penetrates through the shell, the igniter and the piston are located on the same side of the conductor, an arc-extinguishing chamber located on the other side of the conductor is further arranged in the shell, an arc-extinguishing body and a partition plate are arranged in the arc-extinguishing chamber, the partition plate divides the arc-extinguishing chamber into a plurality of arc-extinguishing chambers, the partition plate and the piston are provided with avoiding grooves corresponding to the other one for mutual insertion, the igniter can drive the piston to move to a blocking state in a direction close to the arc-extinguishing body, so that a plurality of fragments corresponding to the arc-extinguishing chambers one by one are formed by cutting part of the conductor through the piston, and the piston is inserted into the arc-extinguishing body in the blocking state. However, a circuit breaking device such as the above-mentioned activation trigger fuse requires a car driving computer to break the battery pack circuit after judgment by a policy calculation, and can be regarded as "passive" protection. And the automobile is in a dormant state when in use, and an automobile driving computer can not judge whether the battery pack has an accident caused by overlarge current or not. Or when the automobile is used, the current does not reach the level of the automobile driving computer, but the current is higher than a certain value for the automobile, and the heat accumulation reaching a certain value can lead the automobile to have an overheat state so as to lead the automobile to naturally cause certain loss of people and property. Although the prior art has a method of solving the above problem by connecting a passive fuse in series with a conventional fuse, it results in a large space and a high cost. Disclosure of utility model The technical scheme of the utility model aims at the technical problem that the prior art is too single, provides a solution which is obviously different from the prior art, and mainly provides an active and passive integrated safety device which is used for solving the technical problem that the 'passive' protection provided in the background art has safety leakage and reducing the space and the cost. The technical scheme adopted for solving the technical problems is as follows: The utility model provides an active and passive integrated safety device, includes the casing, be provided with igniter, piston, explosion chamber and conductive loop in the casing, still be equipped with initiative signal source and passive signal source, all be used for giving the signal and trigger igniter ignition action, the impact force that the igniter produced can drive the piston is towards being close to the direction of explosion chamber moves to blocking position, makes the piston will conductive loop cuts off. As an implementation manner of the above scheme, the igniter is one, and the igniter is connected to the signal processor, and the signal processor can receive the active signal source and the passive signal source (the two signal sources are not received at the same time) and output a signal to trigger the ignition action of the igniter. As another implementation manner of the above scheme, the number of the ignition tools is two, and the two ignition tools are respectively used for receiving an active signal source and a passive signal source. Specifically, the active fusing module is connected with the igniter through an active triggering lead, and when the fuse inside the active fusing module is disconnected, the active triggering lead is communicated with the igniter, and an active signal source is output. Preferably, the active fusing module is arranged inside the shell, and an arc extinguishing medium is arranged at a position corresponding to the active fusing module in the shell. Further, the arc extinguishing medium completely covers the active fusing module. Specifically, the active fusing module is serially connected to the conductive loop. Further, the active fusing module is isolated from an ignition region where the igni