阅读说明：本技术 一种锌银贮备电池用气体发生器及其制备方法 (Gas generator for zinc-silver reserve battery and preparation method thereof ) 是由 唐维邦 覃韬 吕能勇 张军君 简娟娟 刘强 袁再芳 张克彪 李萌 于 2021-08-26 设计创作，主要内容包括：本发明公开了一种锌银贮备电池用气体发生器及其制备方法,属于锌银贮备电池技术领域。该气体发生器包括气体发生组件,所述气体发生组件的一端可拆卸连接有点火部件,另一端设有导气组件,所述气体发生组件上设有喷气孔与导气组件的内部连通。导电柱采用玻璃封接的方式与短壳体连接,密封性好,保证了导电柱的绝缘性能,有助于提高气体发生器的结构强度和密封性。采用压紧环与短壳体螺纹连接的方式,压紧密封膜对烟火药剂进行密封,结构简单,操作便捷,简化了装配工艺,且采用螺纹连接密封可以根据烟火药剂的多少调节螺纹连接长度,适应性强。(The invention discloses a gas generator for a zinc-silver reserve battery and a preparation method thereof, belonging to the technical field of zinc-silver reserve batteries. The gas generator comprises a gas generation assembly, wherein one end of the gas generation assembly is detachably connected with an ignition part, the other end of the gas generation assembly is provided with a gas guide assembly, and the gas generation assembly is provided with a gas injection hole communicated with the inside of the gas guide assembly. The conducting posts are connected with the short shell in a glass sealing mode, the sealing performance is good, the insulating performance of the conducting posts is guaranteed, and the structural strength and the sealing performance of the gas generator are improved. Adopt clamp ring and short casing threaded connection's mode, compress tightly the seal membrane and seal the firework medicament, simple structure, the simple operation has simplified assembly process, and adopts threaded connection sealed can be according to how much regulation threaded connection length of firework medicament, strong adaptability.)

1. A gas generator for a zinc-silver reserve battery is characterized in that: the ignition device comprises a gas generation assembly, wherein one end of the gas generation assembly is detachably connected with an ignition part (3), the other end of the gas generation assembly is provided with a gas guide assembly (1), and the gas generation assembly is provided with a gas orifice communicated with the inside of the gas guide assembly (1).

2. The gas generator for a zinc-silver reserve battery according to claim 1, characterized in that: the gas guide assembly (1) comprises a gas guide tube (5) and a sleeve ring (4), and the sleeve ring (4) is connected with the gas generation assembly through the gas guide tube (5).

3. The gas generator for a zinc-silver reserve battery according to claim 2, characterized in that: and the gas generation assembly and the lantern ring (4) are provided with positioning grooves at positions corresponding to the gas guide pipe (5), and the positioning grooves are in clearance fit with the gas guide pipe (5).

4. The gas generator for a zinc-silver reserve battery according to claim 1, characterized in that: the gas generation assembly comprises a long shell (6) and a gunpowder column (2), a containing groove is arranged in the long shell (6), a jet hole is formed in one end of the containing groove, a pipe threaded hole is formed in the other end of the containing groove, and the gunpowder column (2) is located in the containing groove.

5. The gas generator for a zinc-silver reserve battery according to claim 1 or 4, characterized in that: the aperture of the air injection hole is 1-5 mm.

6. The gas generator for a zinc-silver reserve battery according to claim 1, characterized in that: ignition part (3) is equipped with the recess including short casing (7) and electrical heating component on short casing (7), has placed the fireworks medicament in the recess, and the open end of recess can be dismantled and be connected with seal assembly and seal, and electrical heating component's middle part is passed through insulating part (9) and is connected with short casing (7), and electrical heating component's one end stretches into in the recess and contacts with the fireworks medicament, and the other end extends to outside short casing (7).

7. The gas generator for a zinc-silver reserve battery according to claim 6, characterized in that: the sealing assembly comprises a sealing membrane (10) and a compression ring (11), the sealing membrane (10) is compressed and fixed on the short shell (7) by the compression ring (11), and a wrench through groove is formed in the compression ring (11); the electric heating assembly comprises four conductive columns (8) arranged side by side, and the four conductive columns (8) are connected into a double-bridge parallel structure by bridge wires.

8. A method for preparing a gas generator for a zinc-silver reserve battery is characterized by comprising the following steps: the method comprises the following steps:

A. manufacturing parts: the sleeve ring (4), the air duct (5) and the long shell (6) are made of stainless steel materials, the short shell (7) and the compression ring (11) are made of carbon steel materials, and the gunpowder column (2) is made of a double-base solid propellant;

B. and (3) integral assembly:

a. inserting two ends of the air duct (5) into positioning grooves on the long shell (6) and the lantern ring (4) respectively, and welding the welding seams to connect the lantern ring (4), the air duct (5) and the long shell (6) into a whole;

b. fixedly integrating four conductive columns (8) and a short shell (7) through glass sealing, welding bridge wires between the conductive columns (8), then placing pyrotechnic compositions into grooves of the short shell (7), covering a sealing film (10), screwing a compression ring (11) to fix the sealing film (10) and seal the grooves to obtain an ignition component (3);

c. and (b) filling the explosive columns (2) into the accommodating grooves of the long shell (6), and connecting the ignition part (3) in the step (b) with the long shell (6) in a threaded manner to complete the whole assembly work.

9. The method of manufacturing a gas generator for a zinc-silver reserve battery according to claim 8, characterized in that: and (b) performing full-length welding and sealing welding on the welding seam by adopting argon arc welding in the step a.

10. The method of manufacturing a gas generator for a zinc-silver reserve battery according to claim 8, characterized in that: and c, after the pipe threads of the short shell (7) are fully coated with glue, the pipe threads are connected with the long shell (6) in a threaded mode.

Technical Field

The invention relates to a gas generator for a zinc-silver reserve battery and a preparation method thereof, belonging to the technical field of zinc-silver reserve batteries.

Background

The zinc-silver reserve battery is a chemical power supply with high specific energy and specific power, has the advantages of large current, long-time discharge, long storage life, small internal resistance, stable discharge voltage, stable electrical property, high safety, high reliability, no maintenance and the like, and is widely used as a power supply direct current power supply in a high-power device. The gas generator has been widely applied to the field of the zinc-silver reserve battery pack, such as a parallel gas generator activation structure for the zinc-silver reserve battery disclosed in chinese patent publication No. CN109841860A, and an activation system and method for the zinc-silver reserve battery disclosed in chinese patent publication No. CN 108832151A. When the battery is activated, sufficient pressure is generated by the gas generator, and the separately stored electrolyte is injected into the battery stack within a specified time, so that the electrolyte is activated to establish electromotive force and output voltage to the outside.

However, the currently used gas generator for the zinc-silver reserve battery is to seal the electric ignition tube through a rubber gasket, a support seat and other structures, and the sealing method has complex assembly process and poor sealing performance, and affects the safety and reliability of battery activation.

Disclosure of Invention

In order to solve the technical problem, the invention provides a gas generator for a zinc-silver reserve battery.

The invention is realized by the following technical scheme:

the utility model provides a zinc-silver is gas generator for reserve battery, includes the gas generation subassembly, the one end of gas generation subassembly can be dismantled and is connected with ignition part, and the other end is equipped with the air guide subassembly, be equipped with the inside intercommunication of fumarole and air guide subassembly on the gas generation subassembly.

The gas guide assembly comprises a gas guide tube and a lantern ring, and the lantern ring is connected with the gas generation assembly through the gas guide tube.

And the gas generating assembly and the lantern ring are respectively provided with a positioning groove at the position corresponding to the gas guide tube, and the positioning grooves are in clearance fit with the gas guide tube.

The gas generation assembly comprises a long shell and a gunpowder column, a holding tank is arranged in the long shell, a gas orifice is arranged at one end of the holding tank, a pipe threaded hole is formed in the other end of the holding tank, and the gunpowder column is located in the holding tank.

The aperture of the air injection hole is 1-5 mm.

Ignition part includes short casing and electrical heating component, is equipped with the recess on the short casing, has placed the firework medicament in the recess, and the open end of recess can be dismantled and be connected with seal assembly and seal, and electrical heating component's middle part is passed through insulating part and short casing connection, and electrical heating component's one end stretches into in the recess and contacts with the firework medicament, and the other end extends outside the short casing.

The sealing assembly comprises a sealing film and a compression ring, the sealing film is compressed and fixed on the short shell by the compression ring, a wrench through groove is formed in the compression ring, the electric heating assembly comprises four conductive columns arranged side by side, and the four conductive columns are connected into a double-bridge parallel structure through bridge wires.

A preparation method of a gas generator for a zinc-silver reserve battery comprises the following steps:

A. manufacturing parts: the sleeve ring, the air guide pipe and the long shell are made of stainless steel materials, the short shell and the compression ring are made of carbon steel materials, and the double-base solid propellant is used for making the propellant columns;

B. and (3) integral assembly:

a. inserting two ends of the air duct into the positioning grooves on the long shell and the lantern ring respectively, and welding the welding seams to connect the lantern ring, the air duct and the long shell into a whole;

b. fixedly integrating the four conductive columns and the short shell through glass sealing, welding bridging wires between the conductive columns, then placing the pyrotechnic composition into the grooves of the short shell, covering a sealing film, screwing down the compression ring to fix the sealing film and seal the grooves to obtain the ignition component;

c. and c, filling the explosive columns into the accommodating grooves of the long shell, and connecting the ignition part in the step b with the long shell in a threaded manner to complete the whole assembly work.

And (b) performing full-length welding and sealing welding on the welding seam by adopting argon arc welding in the step a.

And c, after the pipe threads of the short shell are fully coated with glue, the pipe threads are connected with the long shell in a threaded mode.

The invention has the beneficial effects that:

1. the conducting posts are connected with the short shell in a glass sealing mode, the sealing performance is good, the insulating performance of the conducting posts is guaranteed, and the structural strength and the sealing performance of the gas generator are improved.

2. Adopt clamp ring and short casing threaded connection's mode, compress tightly the seal membrane and seal the firework medicament, simple structure, the simple operation has simplified assembly process, and adopts threaded connection sealed can be according to how much regulation threaded connection length of firework medicament, strong adaptability.

3. The lantern ring, the air guide pipe and the long shell are all made of stainless steel materials, welding connection and sealing are carried out through argon arc welding, operation is simple, structural strength of a connection part is good, overall structural strength of the gas generator is guaranteed, and activation reliability of the high-specific-energy zinc-silver storage battery is improved.

4. The aperture of the gas jet hole is 1-5 mm and is far smaller than the inner diameter of the gas guide tube, so that the gas generator is beneficial to keeping a high-temperature and high-pressure environment in the long shell when in work, thereby ensuring that the propellant charge is fully combusted, and improving the activation reliability of the high-specific-energy zinc-silver storage battery.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the assembled structure of the air guide assembly and elongated housing of the present invention;

fig. 3 is a schematic view of the structure of the ignition element of the present invention.

In the figure: the method comprises the following steps of 1-air guide assembly, 2-explosive column, 3-ignition part, 4-lantern ring, 5-air guide tube, 6-long shell, 7-short shell, 8-conductive column, 9-insulating part, 10-sealing film, 11-compression ring and 12-welding line.

Detailed Description

The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.

As shown in fig. 1 to 3, the gas generator for the zinc-silver reserve battery comprises a gas generating assembly, wherein one end of the gas generating assembly is in threaded connection with an ignition part 3, the other end of the gas generating assembly is welded with a gas guide assembly 1, and a gas injection hole is formed in the gas generating assembly and is communicated with the inside of the gas guide assembly 1.

The gas guide assembly 1 comprises a gas guide tube 5 and a lantern ring 4, and the lantern ring 4 is connected with the gas generation assembly through the gas guide tube 5.

And positioning grooves are processed on the gas generation assembly and the lantern ring 4 at positions corresponding to the gas guide tube 5, and the positioning grooves are in clearance fit with the gas guide tube 5. The positioning groove is arranged, so that the welding tightness of the air duct 5, the lantern ring 4 and the long shell 6 is improved.

The gas generation subassembly includes long casing 6 and powder column 2, and processing has the holding tank in the long casing 6, and the fumarole processing has the pipe thread hole in the one end of holding tank, the other end processing of holding tank, and powder column 2 is located the holding tank.

The aperture of the air injection hole is 1-5 mm. The aperture of the gas jet hole is 1-5 mm and is far smaller than the inner diameter of the gas guide tube 5, so that the long shell 6 can be kept in a high-temperature and high-pressure environment when the gas generator works, the full combustion of the propellant charge 2 is ensured, and the activation reliability of the high-specific-energy zinc-silver reserve battery is improved. When the gas generator works, if the aperture of the gas injection hole is too large, gas can flow out quickly, and the inside of the long shell 6 cannot be kept in a high-temperature and high-pressure environment; if the orifice diameter is too small, the long case 6 may burst due to too high internal pressure.

Ignition part 3 includes short casing 7 and electrical heating component, processes flutedly on the short casing 7, has placed the firework medicament in the recess, and the open end of recess can be dismantled and be connected with seal assembly and seal, and electrical heating component's middle part is passed through insulating part 9 and is connected with short casing 7, and electrical heating component's one end stretches into in the recess and contacts with the firework medicament, and the other end extends outside short casing 7.

Seal assembly includes seal membrane 10 and clamp ring 11, and clamp ring 11 compresses tightly seal membrane 10 to be fixed on short casing 7, and processing has the spanner to lead to the groove on the clamp ring 11, and electric heating assembly includes four electrically conductive posts 8 that set up side by side, and four electrically conductive posts 8 adopt the bridgewire to connect into the parallel structure of double bridge. Adopt clamp ring 11 and short casing 7 threaded connection's mode, compress tightly seal membrane 10 and seal up the firework medicament, simple structure, the simple operation has simplified assembly process, and adopts threaded connection sealed can be according to how much regulation threaded connection length of firework medicament, strong adaptability. The conductive post 8 is connected with a bonding wire 12.

A preparation method of a gas generator for a zinc-silver reserve battery comprises the following steps:

A. manufacturing parts: the lantern ring 4, the air duct 5 and the long shell 6 are made of stainless steel materials, the short shell 7 and the compression ring 11 are made of carbon steel materials, and the double-base solid propellant is used for making the propellant columns 2;

B. and (3) integral assembly:

a. inserting two ends of the air duct 5 into the positioning grooves on the long shell 6 and the lantern ring 4 respectively, and welding the welding seams to connect the lantern ring 4, the air duct 5 and the long shell 6 into a whole;

b. fixedly integrating four conductive columns 8 and a short shell 7 through glass sealing, welding bridging wires among the conductive columns 8, then placing pyrotechnic compositions into grooves of the short shell 7, covering a sealing film 10, screwing a compression ring 11 to fix the sealing film 10 and seal the grooves to obtain the ignition component 3; the conducting column 8 is connected with the short shell 7 in a glass sealing mode, the sealing performance is good, the insulating performance of the conducting column 8 is guaranteed, and meanwhile, the structural strength and the sealing performance of the gas generator are improved.

c. And (b) filling the explosive columns 2 into the accommodating grooves of the long shell 6, and connecting the ignition part 3 in the step b with the long shell 6 in a threaded manner to complete the whole assembly work.

And (b) performing full-length welding and sealing welding on the welding seam by adopting argon arc welding in the step a. The lantern ring 4, the air duct 5 and the long shell 6 are all made of stainless steel materials and are welded and sealed by argon arc welding, the operation is simple, the structural strength of the connecting part is good, the overall structural strength of the gas generator is ensured, and the activation reliability of the high-specific-energy zinc-silver reserve battery is improved.

And c, after the pipe threads of the short shell 7 are fully coated with glue, the pipe threads are connected with the long shell 6 in a threaded mode. The sealing of the threaded connection of the short housing 7 and the long housing 6 is ensured.

The working principle of the gas generator for the zinc-silver reserve battery is as follows:

when the zinc-silver reserve battery pack needs to be activated, an external power supply is connected through the welding wire socket, a direct current voltage with a certain size is applied to the gas generator, the bridge wire is electrified to generate heat to ignite the pyrotechnic composition in the short shell 7, the pyrotechnic composition 2 is ignited through the pyrotechnic composition, the pyrotechnic composition 2 is fully combusted in the long shell 6 and generates a large amount of gas, the gas passes through the gas jet hole, the gas guide pipe 5, the lantern ring 4 and the like, and then the electrolyte in the liquid reservoir is injected into the battery stack, so that the activation work of the zinc-silver reserve battery is completed.

The gas generator for the zinc-silver reserve battery has the following beneficial effects:

1. the conducting column 8 is connected with the short shell 7 in a glass sealing mode, the sealing performance is good, the insulating performance of the conducting column 8 is guaranteed, and the structural strength and the sealing performance of the gas generator are improved.

2. Adopt clamp ring 11 and short casing 7 threaded connection's mode, compress tightly seal membrane 10 and seal up the firework medicament, simple structure, the simple operation has simplified assembly process, and adopts threaded connection sealed can be according to how much regulation threaded connection length of firework medicament, strong adaptability.

3. The lantern ring 4, the air duct 5 and the long shell 6 are all made of stainless steel materials and are welded and sealed by argon arc welding, the operation is simple, the structural strength of the connecting part is good, the overall structural strength of the gas generator is ensured, and the activation reliability of the high-specific-energy zinc-silver reserve battery is improved.

4. The aperture of the gas jet hole is 1-5 mm and is far smaller than the inner diameter of the gas guide tube 5, so that the long shell 6 can be kept in a high-temperature and high-pressure environment when the gas generator works, the full combustion of the propellant charge 2 is ensured, and the activation reliability of the high-specific-energy zinc-silver reserve battery is improved.