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CN-224204084-U - Active and passive modularized safety device

CN224204084UCN 224204084 UCN224204084 UCN 224204084UCN-224204084-U

Abstract

The utility model discloses an active and passive modularized 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, an active signal source and a passive signal source are arranged and are used for giving out signals to trigger the igniter to perform ignition action, impact force generated by the igniter can drive the piston to move to a blocking position towards a direction close to the arc extinguishing chamber, the conductive loop is cut off by the piston, and an active module used for generating the active signal source is arranged outside the shell. 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 item is effectively solved, the active module is externally arranged, and the two protection modes share one set of piston and arc extinguishing chamber, thereby reducing the volume of the device and being beneficial to reducing the cost.

Inventors

  • ZHANG KE
  • YU TINGTING
  • ZHOU ZHILONG

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 a passive modular 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 a direction approaching to the arc extinguishing chamber (30) so that the piston (20) cuts off the conductive loop (40); an active module (50) for generating an active signal source is external to the housing (100).
  2. 2. An active and passive modular safety device as claimed in claim 1, wherein the igniter (10) is provided as one, the igniter (10) is connected to a signal processor, and the signal processor is capable of receiving the active signal source and the passive signal source and outputting a signal to trigger the ignition of the igniter (10).
  3. 3. An active and passive modular safety device according to claim 1, wherein there are two of said ignitors (10), and wherein two of said ignitors (10) are adapted to receive an active signal source and a passive signal source, respectively.
  4. 4. An active and passive modular safety device according to claim 1, wherein the active module (50) is connected to the igniter (10) through an active trigger lead (11), and when the inside of the active module (50) melts, the active trigger lead (11) is communicated with the igniter (10) to output an active signal source.
  5. 5. An active and passive modular safety device according to claim 4, wherein the active module (50) is connected to the conductive loop (40).
  6. 6. The active and passive modular safety device according to claim 5, wherein the active module (50) comprises a housing (51), a mounting block (52) and an electric conductor (53), the mounting block (52) is arranged in the housing (51), two ends of the electric conductor (53) are respectively connected with the two active trigger leads (11), and the part of the electric conductor (53) which can be actively fused is arranged inside the housing (51).
  7. 7. An active and passive modular safety device as claimed in claim 6, wherein the housing (51) and the mounting block (52) are provided with through holes (54) for bolts.
  8. 8. An active and passive modular fuse as defined in claim 6 wherein said actively fusible portion of said electrical conductor (53) is located on one side of said mounting block (52), said one side of said mounting block (52) defining a fuse protective region.
  9. 9. An active and passive modular safety device according to claim 8, wherein the area of the active module (50) where fuse protection is achieved is filled with an arc suppressing medium (55).
  10. 10. An active and passive modular safety device as claimed in claim 9, wherein said quenching medium (55) is selected from any one of quartz sand, metal grid, wire.

Description

Active and passive modularized safety device Technical Field The utility model mainly relates to the technical field of circuit protection devices, in particular to an active and passive modularized 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, as shown in fig. 1, 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 also 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 respectively provided with an avoidance groove 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 bodies, 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 are brought into the corresponding arc-extinguishing chambers, and in the blocking state, one end of the piston close to the arc-extinguishing body is inserted into the arc-extinguishing body. 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 modularized 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 active and passive modularized safety device comprises a shell, wherein an igniter, a piston, an arc extinguishing chamber and a conductive loop are arranged in the shell; The device is provided with an active signal source and a passive signal source which are used for giving signals to trigger an ignition device to perform ignition action, and impact force generated by the ignition device can drive the piston to move to a blocking position in a direction approaching to the arc extinguishing chamber, so that the piston cuts off the conductive loop; An active module for generating an active signal source is arranged outside the shell. As one implementation mode of the scheme, the igniter is one, the igniter 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 igniter to perform ignition. 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. Further, the active module is connected with the ignition tool through an active trigger lead, and when the inside of the active module is fused, the active trigger lead is communicated with the ignition tool to output an active signal source. Further, the active module is connected to the conductive loop. Specifically, initiative module includes shell, installation piece and electric conductor, be equipped with the installation piece in the shell, the both ends of electric conductor are connected wi