CN211105233U - Gas generator with injection molding type base - Google Patents
Gas generator with injection molding type base Download PDFInfo
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- CN211105233U CN211105233U CN201922132051.0U CN201922132051U CN211105233U CN 211105233 U CN211105233 U CN 211105233U CN 201922132051 U CN201922132051 U CN 201922132051U CN 211105233 U CN211105233 U CN 211105233U
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Abstract
The utility model discloses a gas generator with an injection molding type base, which comprises an igniter, a shell with an opening at one end, the injection molding type base and an injection molding body; the injection molding base is fixedly arranged at the opening end of the shell; the ignition tool passes through the injection molding body is fixed on the injection molding type base, the injection molding body contacts with the ignition tool, the injection molding body ignites the end with the ignition tool and seals inside the casing, the sealed space that injection molding body and casing formed is used for storing gas production medicament, directly mould the ignition tool on the injection molding type base through the injection molding body, ignite the end with the ignition tool and seal inside the casing, the installation sealing washer when omitting to produce gas generator, ignition tool binding off and installation short circuit ring process, the cost is reduced when having improved the leakproofness, the production efficiency is promoted, the production technology is simplified, in a short time, can produce and manufacture a large amount of gas generator, can satisfy very big market demand, cancel the sealing washer simultaneously, and the production cost is reduced.
Description
Technical Field
The utility model relates to an automobile safety field, concretely relates to gas generator with type of moulding plastics base.
Background
The MGG is a micro gas generator (hereinafter referred to as MGG), is a power source for a pretensioner of an automobile safety belt and provides power for tightening the automobile safety belt, and can also be used as a power source for other used products, such as a glass breaker and an intelligent fire-fighting equipment, so that the MGG has large market demand and strong competition; when the MGG is produced, procedures such as installation of a sealing ring, closing in of an igniter, closing in of a tube shell, installation of a short circuit ring and the like are generally required, the production procedures are various, the production efficiency is low, the market demand becomes extremely large along with the increase of the number of automobiles, and the existing MGG manufacturing process and the production capacity of the MGG cannot meet the extremely large market demand.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the gas generator with the injection molding type base is simple in manufacturing process and high in production efficiency.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: a gas generator with an injection molding type base comprises an igniter, a shell with an opening at one end, the injection molding type base and an injection molding body; the injection molding base is fixedly arranged at the opening end of the shell; the ignition tool is fixed on the injection molding type base through the injection molding body, the injection molding body is in contact with the ignition tool, the ignition end of the ignition tool is sealed inside the shell body through the injection molding body, and a sealed space formed by the injection molding body and the shell body is used for storing gas production medicaments. Directly mould the ignition tool package on the type of moulding plastics base through the injection molding body, ignite the end with the ignition tool and seal inside the casing, the installation sealing washer when saving production manufacturing gas generator, ignition tool binding off and installation short circuit ring process, the cost is reduced when having improved the leakproofness, production efficiency has been promoted, production technology has been simplified, in shorter time, can produce a large amount of gas generator, can satisfy very big market demand, the sealing washer has been cancelled simultaneously, gas generator's manufacturing cost has been reduced.
Preferably, the shell is cylindrical, and the injection molding base is hollow and cylindrical; an outward-turned annular flange is arranged at the opening end of the shell; the injection molding base is provided with the pressing ring, the pressing ring is closed up through the pressing ring, the pressing ring is in contact with the top surface of the flash, and the injection molding base is fixed at the opening end of the shell. The shell is cylindrical and the injection molding base is hollow and cylindrical, so that the gas generator is more convenient to assemble, and the whole gas generator is better in compatibility; due to the arrangement of the flash and the compression ring, the injection molding base and the shell are stably fixed, the injection molding base cannot be separated from the shell, and the stability of a product is ensured; the connection mode of the flash and the press ring can not cause the whole temperature of the gas generator to change greatly, can not ignite gas generating agent, can not extrude the gas generating agent in the shell, and can ensure the safety and reliability of the process of producing the gas generator.
Further, still include the support ring, the support ring is fixed to be set up inside the type of moulding plastics base, and support ring central axis and the coincidence of type of moulding plastics base central axis, support ring outline parcel have the injection molding. The arrangement of the support ring enables the injection molding body to have a larger contact area with the injection molding type base, and meanwhile, the support ring has a supporting effect on the injection molding body, so that the injection molding body is prevented from being difficult to form when the injection molding body is subjected to injection molding; after the injection molding body is cooled and molded, the injection molding body is not easy to fall off, and the sealing performance of the gas generator is improved.
Preferably, the central axis of the injection molding base is coincident with the central axis of the shell; the consistency of products is ensured, so that the gas generators produced in batches have consistency.
Furthermore, a circular groove is arranged at the bottom of the opening of the non-opening end of the shell, the area of the circular groove accounts for 50% -70% of the area of the bottom of the shell, and the depth of the circular groove is 30% -50% of the wall thickness of the shell; the gas produced after the gas production agent is ignited can easily break the circular groove, the time for the gas to break the shell is reduced, and power is provided for tightening the safety belt in time.
Preferably, the direction of the short circuit ring pins of the igniter is parallel to the axial direction of the shell, so that the pins are prevented from being inclined, and the gas generator is difficult to assemble in the subsequent process; the pin direction is parallel to the axis direction of the shell, and the pin states of the gas generator are the same, so that the gas generator is easy to assemble.
The beneficial effects of the utility model are that 1, the gas generator with type of moulding plastics base that provides in this scheme can directly mould the ignition tool package on the type of moulding plastics base through the injection molding body, ignite the end with the ignition tool and seal inside the casing, the installation sealing washer when saving manufacturing gas generator, the ignition tool binding off and installation short circuit ring process, the cost is reduced when having improved the leakproofness, and production efficiency is promoted, and the production technology is simplified, has cancelled the sealing washer simultaneously, and manufacturing cost is reduced.
2. The gas generator with the injection molding type base provided in the scheme has the advantages of simple structure, good sealing performance, high production safety, quicker gas generation, high response speed and convenience in assembly.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic structural view of a gas generator with an injection molding base of the present invention.
Reference numbers and corresponding part names in the drawings: 1-injection molding type base, 2-injection molding body, 3-igniter, 4-shell, 5-annular flange, 6-compression ring, 7-support ring, 8-circular groove and 9-pin.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and embodiments:
examples
As shown in fig. 1, the gas generator with the injection molding type base 1 comprises an igniter 3, a shell 4 with an opening at one end, the injection molding type base 1 and an injection molding body 2; the injection molding type base 1 is fixedly arranged at the opening end of the shell 4; the ignition device 3 is fixed on the injection molding base 1 through the injection molding body 2, the injection molding body 2 is in contact with the ignition device 3, the ignition end of the ignition device 3 is sealed inside the shell 4 through the injection molding body 2, and a sealed space formed by the injection molding body 2 and the shell 4 is used for storing gas production medicaments. Mould 3 packages of ignition tool on injection molding type base 1 through the injection molding body 2 is direct, ignite the end with ignition tool 3 and seal inside casing 4, the installation sealing washer when omitting to produce and make gas generator, 3 setbacks of ignition tool and installation short circuit ring processes, the cost is reduced when having improved the leakproofness, the production efficiency has been promoted, the production technology is simplified, in shorter time, can produce and make a large amount of gas generator, can satisfy very big market demand, the sealing washer has been cancelled simultaneously, the production cost is reduced.
Preferably, the housing 4 is cylindrical, and the injection molding base 1 is hollow and cylindrical; an outward-turned annular flange 5 is arranged at the opening end of the shell 4; be provided with clamping ring 6 on the type of moulding plastics base 1, through closing up to clamping ring 6, clamping ring 6 and overlap top surface contact, type of moulding plastics base 1 fixes at the 4 open ends of casing. The shell 4 is cylindrical and the injection molding base 1 is hollow cylindrical, so that the gas generator is more convenient to assemble, and the whole gas generator is better in compatibility; due to the arrangement of the flash and the pressing ring 6, the injection molding base 1 and the shell 4 are fixed stably, the injection molding base 1 cannot be separated from the shell 4, and the stability of a product is ensured; the connection mode of the flash and the press ring 6 can not cause the whole temperature of the gas generator to change greatly, can not ignite gas producing medicament, can not extrude the gas producing medicament in the shell 4, and ensures the safe and reliable process of producing the gas generator.
Further, still include support ring 7, support ring 7 is fixed to be set up inside injection molding base 1, and support ring 7 the central axis coincides with injection molding base 1 the central axis, and 7 outer contours of support ring have the injection molding 2 of parcel. The arrangement of the support ring 7 enables the injection molding body 2 to have a larger contact area with the injection molding base 1, and simultaneously has a supporting effect on the injection molding body 2, so that the injection molding body 2 is prevented from being difficult to form when the injection molding body 2 is subjected to injection molding; after the injection molding body 2 is molded, the injection molding body 2 is not easy to fall off, and the sealing performance of the gas generator is improved.
Preferably, the central axis of the injection molding base 1 coincides with the central axis of the shell 4; the consistency of products is ensured, so that the gas generators produced in batches have consistency.
Further, a circular groove 8 is formed in the bottom of the opening of the non-opening end of the shell 4, the area of the circular groove 8 accounts for 50% -70% of the area of the bottom of the shell 4, and the depth of the circular groove 8 is 30% -50% of the wall thickness of the shell 4; the gas produced after the gas production agent is ignited can easily break the circular groove 8, the time for the gas to break the shell is reduced, and power is provided for tightening the safety belt in time.
Preferably, the direction of the short circuit ring pins 9 of the igniter 3 is parallel to the axial direction of the shell 4, so that the pins 9 are prevented from being inclined, and the gas generator is difficult to assemble in a post process; the direction of the pins 9 is parallel to the axial direction of the shell 4, and the state of the pins 9 of the gas generator is the same, so that the gas generator is easy to assemble.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments thereof. To the utility model belongs to the technical field of the ordinary skilled person say, do not deviate from the utility model discloses a other embodiments that reach under the technical scheme all should be contained the utility model discloses a within the scope of protection.
Claims (6)
1. A gas generator with an injection molding type base comprises an igniter (3) and a shell (4) with an opening at one end, and is characterized by further comprising an injection molding type base (1) and an injection molding body (2); the injection molding base (1) is fixedly arranged at the opening end of the shell (4); the ignition tool (3) is fixed on the injection molding base (1) through the injection molding body (2), the injection molding body (2) is in contact with the ignition tool (3), the ignition end of the ignition tool (3) is sealed inside the shell (4) through the injection molding body (2), and a sealed space formed by the injection molding body (2) and the shell (4) is used for storing gas production medicaments.
2. Gas generator with injection moulded base according to claim 1, characterised in that the housing (4) is cylindrical and the injection moulded base (1) is hollow cylindrical; an outward-turned annular flash (5) is arranged at the opening end of the shell (4); the injection molding base (1) is provided with a pressing ring (6), the pressing ring (6) is closed up, the pressing ring (6) is in contact with the top surface of the flash (5), and the injection molding base (1) is fixed at the opening end of the shell (4).
3. The gas generator with the injection molding base is characterized by further comprising a support ring (7), wherein the support ring (7) is fixedly arranged inside the injection molding base (1), the central axis of the support ring (7) is coincident with the central axis of the injection molding base (1), and the outer contour of the support ring (7) is wrapped with the injection molding body (2).
4. Gas generator with injection moulded base according to claim 2, characterised in that the injection moulded base (1) centre axis coincides with the housing (4) centre axis.
5. The gas generator with injection molding type base according to claim 1 is characterized in that the bottom of the open end of the shell is provided with a circular groove (8), the area of the circular groove (8) accounts for 50-70% of the area of the bottom of the shell, and the depth of the circular groove (8) is 30-50% of the wall thickness of the shell (4).
6. Gas generator with injection moulded base according to claim 1, characterised in that the direction of the short circuit pins (9) of the igniter is parallel to the axial direction of the housing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922132051.0U CN211105233U (en) | 2019-12-02 | 2019-12-02 | Gas generator with injection molding type base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922132051.0U CN211105233U (en) | 2019-12-02 | 2019-12-02 | Gas generator with injection molding type base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211105233U true CN211105233U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922132051.0U Active CN211105233U (en) | 2019-12-02 | 2019-12-02 | Gas generator with injection molding type base |
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| CN (1) | CN211105233U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112657078A (en) * | 2021-01-10 | 2021-04-16 | 湖北航鹏化学动力科技有限责任公司 | Intelligent window breaking device |
-
2019
- 2019-12-02 CN CN201922132051.0U patent/CN211105233U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112657078A (en) * | 2021-01-10 | 2021-04-16 | 湖北航鹏化学动力科技有限责任公司 | Intelligent window breaking device |
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Effective date of registration: 20220614 Address after: 621000 Donghua village, Xinqiao Town, Youxian District, Mianyang City, Sichuan Province Patentee after: Sichuan Ruiya Kechuang Automobile Safety Technology Co.,Ltd. Address before: 621000 Donghua village, Xinqiao Town, Youxian District, Mianyang City, Sichuan Province Patentee before: Sichuan huaruiya Automobile Safety Technology Co.,Ltd. |