CN219107089U

CN219107089U - Initiator structure based on externally-hung low-temperature explosion-proof battery

Info

Publication number: CN219107089U
Application number: CN202223281360.2U
Authority: CN
Inventors: 朱建楼; 曲兵兵; 潘之炜; 赵先锋; 张永刚
Original assignee: Wuxi Shengjing Microelectronics Co ltd
Current assignee: Wuxi Shengjing Microelectronics Co ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-05-30
Anticipated expiration: 2032-12-07

Abstract

The utility model provides an exploder structure based on an externally-hung low-temperature explosion-proof battery, which can ensure normal power supply and explosion initiation in an extremely low-temperature environment and has better safety and stability; the electric detonator is used for being connected with the exploder and is characterized by comprising an external charging battery module for storing electric quantity; and the charge and discharge protection module is connected between the external charging battery module and the initiator and is used for realizing charge and discharge overvoltage and overcurrent protection and outputting electric quantity to the initiator.

Description

Initiator structure based on externally-hung low-temperature explosion-proof battery

Technical Field

The utility model relates to the technical field of detonating equipment, in particular to an exploder structure based on an externally-hung low-temperature explosion-proof battery.

Background

In the explosion engineering, the electronic detonator needs to be detonated through an exploder, but the existing exploder does not have a low-temperature explosion-proof function, namely, the explosion working environment is worse, and the power supply battery of the exploder is used at most in a temperature environment of about-20 ℃, so that unstable conditions exist if the power supply battery is in an ultralow-temperature environment, and normal power supply cannot be realized.

Disclosure of Invention

Aiming at the problems, the utility model provides an outer hanging type low-temperature explosion-proof battery-based exploder structure, which can ensure normal power supply and explosion initiation in an extremely low-temperature environment and has better safety and stability.

The technical scheme is that the detonator structure based on the externally-hung low-temperature explosion-proof battery is used for being connected with the detonator and is characterized by comprising an external charging battery module used for storing electric quantity;

and the charge and discharge protection module is connected between the external charging battery module and the initiator and is used for realizing charge and discharge overvoltage and overcurrent protection and outputting electric quantity to the initiator.

It is further characterized by:

the initiator comprises a charging module, a charging module and a discharging module, wherein the charging module is connected with the charging and discharging protection module and is used for receiving electric quantity so as to supply power for the initiator;

the detonation battery is connected with the charging module and used for storing the electric quantity output by the charging module;

the electronic detonator driving module is connected with the detonation battery and is used for driving the electronic detonator after receiving the electric quantity stored by the charging module;

the external charging battery module and the detonating battery are lithium batteries with liquid electrolyte; the lithium battery is characterized in that the outer parts of the lithium batteries are provided with shells, and the shells are one of aluminum shells and aluminum plastic film shells;

the charge-discharge protection module comprises a fuse F1, current protection controllers U1 and U2, a voltage protection controller U3, resistors R1 to R7, capacitors C1 to C8 and MOS tubes Q1 to Q3, wherein the current protection controllers U1 and U2 are respectively provided with a model R5480K283CL control chip, the voltage protection controller U3 is respectively provided with a model S8261DAI control chip, and the MOS tubes Q1 to Q3 are respectively provided with a model WNMD2180 switch chip; the VBAT and VBAT-ends of the charge and discharge protection module are connected to the external charging battery module, and the B-ends and P-ends of the charge and discharge protection module are connected to the charging module.

The utility model has the beneficial effects that the power supply to the exploder can be realized under extremely low temperature and severe environment by arranging the connected external charging battery module and the charging and discharging protection module, so that the exploder has the characteristics of low temperature explosion prevention, and has good safety and stability and better economic use value.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a schematic circuit diagram of the charge-discharge protection module according to the present utility model.

Detailed Description

As shown in fig. 1 and 2, the initiator structure based on the externally-hung low-temperature explosion-proof battery is used for connecting an initiator and comprises an externally-charged battery module 1 for storing electric quantity;

and the charge and discharge protection module 2 is connected between the external charging battery module 1 and the exploder and is used for realizing charge and discharge overvoltage and overcurrent protection and outputting electric quantity to the exploder, so that the safety and stability of integral power supply can be improved.

The initiator comprises a charging module 3 which is connected with the charging and discharging protection module 2 and is used for receiving electric quantity so as to supply power for the initiator; the detonation battery 4 is connected with the charging module 3 and used for storing the electric quantity output by the charging module 3; the electronic detonator driving module 5 is connected with the detonation battery 4 and is used for driving the electronic detonator after receiving the electric quantity stored by the charging module 3; the charging module 3, the detonation battery 4 and the electronic detonator driving module 5 are all existing electronic modules or circuits; the external charging battery module 1 and the initiating battery 4 are both lithium batteries with liquid electrolyte, and the liquid electrolyte is favorable for reducing the internal resistance of the batteries and increasing the release of the battery capacity, so that the high-current discharge performance and the low-temperature performance of the batteries can be improved; the soft shell is arranged outside the lithium battery, the shell is an aluminum plastic film shell, when the lithium battery generates internal pressure, the soft package shell is inflated immediately along with the pressure to release the internal pressure, the lithium battery is not exploded due to the excessive internal pressure, and the explosion-proof safety of the lithium battery is improved; on the other hand, the soft shell of the lithium battery is convenient for changing the shape specification of the lithium battery, simplifies the production flow, reduces the production cost and is suitable for product industrialization.

The charge-discharge protection module 2 comprises a fuse F1, current protection controllers U1 and U2, a voltage protection controller U3, resistors R1 to R7, capacitors C1 to C8 and MOS transistors Q1 to Q3, wherein the current protection controllers U1 and U2 are all model R5480K283CL control chips, and can detect overcharge, overdischarge and charge overcurrent and discharge overcurrent of a single rechargeable lithium ion/lithium polymer battery, high-precision overcurrent detection can be realized through an external resistor R6 of an RSENSE pin, and after overdischarge is detected, an internal circuit is stopped to reduce consumption current, and two-stage protection can be realized through the arrangement of the current protection controllers U1 and U2; the voltage protection controller U3 adopts a model S8261DAI control chip, can realize load short circuit detection and charge overvoltage protection, and has the function of external discharge overvoltage protection; model WNMD2180 switch chips are adopted for the MOS tubes Q1-Q3; the VBAT+ and VBAT-ends of the charge and discharge protection module 2 are connected to the external charging battery module 1, and the B-and P-ends of the charge and discharge protection module 2 are connected to the charging module 3.

The working principle of the utility model is that after the charge-discharge protection module 2 receives the electric quantity stored by the external charging battery module 1, the charge-discharge overvoltage overcurrent protection is carried out through the current protection controllers U1 and U2 and the voltage protection controller U3, and then the electric quantity is output to the charging module 3 of the exploder, so that reliable guarantee is provided for the exploder to explode the electronic detonator, thereby realizing the power supply to the exploder in the extremely low temperature severe environment, and the exploder has the characteristics of low temperature explosion prevention and better safety and stability.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. An exploder structure based on an externally-hung low-temperature explosion-proof battery is used for connecting the exploder and is characterized by comprising an externally-charged battery module for storing electric quantity;

2. The initiator structure based on the externally-hung low-temperature explosion-proof battery according to claim 1, wherein: the initiator comprises a charging module, a charging module and a discharging module, wherein the charging module is connected with the charging and discharging protection module and is used for receiving electric quantity so as to supply power for the initiator;

and the electronic detonator driving module is connected with the detonation battery and is used for driving the electronic detonator after receiving the electric quantity stored by the charging module.

3. The initiator structure based on the externally-hung low-temperature explosion-proof battery according to claim 2, wherein: the external charging battery module and the detonating battery are lithium batteries with liquid electrolyte; the lithium battery is characterized in that a shell is arranged outside the lithium battery, and the shell is one of an aluminum shell and an aluminum plastic film shell.

4. The initiator structure based on the externally-hung low-temperature explosion-proof battery according to claim 2, wherein: the charge-discharge protection module comprises a fuse F1, current protection controllers U1 and U2, a voltage protection controller U3, resistors R1 to R7, capacitors C1 to C8 and MOS tubes Q1 to Q3, wherein the current protection controllers U1 and U2 are respectively provided with a model R5480K283CL control chip, the voltage protection controller U3 is respectively provided with a model S8261DAI control chip, and the MOS tubes Q1 to Q3 are respectively provided with a model WNMD2180 switch chip; the VBAT and VBAT-ends of the charge and discharge protection module are connected to the external charging battery module, and the B-ends and P-ends of the charge and discharge protection module are connected to the charging module.