CN114572148B - Hybrid generator capable of reducing gas temperature - Google Patents
Hybrid generator capable of reducing gas temperature Download PDFInfo
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- CN114572148B CN114572148B CN202210174706.4A CN202210174706A CN114572148B CN 114572148 B CN114572148 B CN 114572148B CN 202210174706 A CN202210174706 A CN 202210174706A CN 114572148 B CN114572148 B CN 114572148B
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- gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
- B60R21/264—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic
- B60R21/2644—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic using only solid reacting substances, e.g. pellets, powder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
- B60R21/276—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow with means to vent the inflation fluid source, e.g. in case of overpressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
- B60R2021/26011—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using a filter through which the inflation gas passes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
- B60R2021/26029—Ignitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a mixed generator capable of reducing gas temperature, and aims to provide a mixed generator capable of reducing gas temperature and beneficial to personal safety. It includes the body, be equipped with high-pressure inert gas in the body, the one end of body is equipped with ignition, ignition includes medicine cup and ignition tube subassembly, the medicine cup is located the body, the ignition tube subassembly is located outside the body, the ignition tube subassembly respectively with the tip of body and the open end fixed connection of medicine cup, be equipped with the transfer powder in the medicine cup, be equipped with the blind hole that a plurality of slope was arranged on the lateral wall of medicine cup, the bottom seal of medicine cup, the other end of body is fixed with cartridge filter and exhaust subassembly, the cartridge filter is located the body, be equipped with the circuitous runner of arranging in the lateral wall of cartridge filter, all be equipped with the filtration pore that a plurality of and runner are linked together on the interior lateral wall of cartridge filter, exhaust subassembly is located outside the body. The invention has the beneficial effects that: is beneficial to the personal safety.
Description
Technical Field
The invention relates to the related technical field of gas generators, in particular to a hybrid generator capable of reducing gas temperature.
Background
The gas generator referred to herein is mainly a gas generator used in a safety system of an automobile. When the vehicle collides, the gas generator inflates and expands the safety airbag to protect the safety of passengers.
Chinese patent publication No. CN112061072A, published as 2020, 12/11/h, entitled gas generator capable of reducing influence of ambient temperature on performance, which comprises a tube body, in which high-pressure gas is arranged, one end of the tube body is provided with an ignition device, the other end of the tube body is provided with a gas outlet structure, the gas outlet structure comprises a gas outlet tube sleeve, the gas outlet tube sleeve is fixedly connected with the tube body, one end of the gas outlet tube sleeve is sealed and located outside the tube body, one end of the gas outlet tube sleeve is sealed and provided with a plurality of exhaust holes, the other end of the gas outlet tube sleeve is provided with a diffuser and located inside the tube body, one end of the diffuser is fixedly connected with the gas outlet tube sleeve, the other end of the diffuser is provided with a plurality of gas outlet holes, a rupture membrane is arranged in the gas outlet tube sleeve, the rupture membrane is located between the gas outlet holes and the exhaust holes, and the inside of the tube body is communicated with the inside of the gas outlet tube sleeve through the plurality of gas outlet holes.
The gas generator that relates in the above-mentioned patent, the high-pressure gas that produces in the body is outside through the mode exhaust generator of direct vent for the combustion gas temperature is higher, makes the dwell time of high-temperature gas in the gasbag shorten, and then shortens the gasbag and to the guard time of human body, and passenger is scalded easily to overheated gas temperature simultaneously, is unfavorable for personal safety.
Disclosure of Invention
The invention provides a mixed generator which is beneficial to personal safety and can reduce the gas temperature, aiming at overcoming the defects that the gas temperature discharged by a gas generator is higher and is not beneficial to the personal safety in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a can reduce gas temperature's hybrid generator, it includes the body, be equipped with high-pressure inert gas in the body, the one end of body is equipped with ignition, ignition includes medicine cup and ignition tube subassembly, the medicine cup is located the body, the ignition tube subassembly is located outside the body, the ignition tube subassembly respectively with the tip of body and the open end fixed connection of medicine cup, be equipped with the priming in the medicine cup, be equipped with the blind hole that a plurality of slope was arranged on the lateral wall of medicine cup, the bottom of medicine cup is sealed, the other end of body is fixed with cartridge filter and exhaust subassembly, the cartridge filter is located the body, be equipped with circuitous runner of arranging in the lateral wall of cartridge filter, all be equipped with a plurality of filtration pore that is linked together with the runner on the interior lateral wall of cartridge filter, the exhaust subassembly is located outside the body.
The high-pressure inert gas exhaust device is characterized in that high-pressure inert gas is arranged in the tube body, an ignition device is arranged at one end of the tube body and comprises a medicine cup and an ignition tube assembly, the medicine cup is located in the tube body, the ignition tube assembly is located outside the tube body and is fixedly connected with the end portion of the tube body and the open end of the medicine cup respectively, a transfer charge is arranged in the medicine cup, a plurality of blind holes which are obliquely arranged are formed in the side wall of the medicine cup, the bottom of the medicine cup is sealed, a filter cylinder and an exhaust assembly are fixed to the other end of the tube body and are located in the tube body, a flow channel which is circuitously arranged is formed in the side wall of the filter cylinder, a plurality of filter holes communicated with the flow channel are formed in the inner side wall and the outer side wall of the filter cylinder, and the exhaust assembly is located outside the tube body. External current is input to the ignition tube assembly, flame is released by the ignition tube assembly, and igniting primer is ignited to generate gas, the generated gas enables the air pressure in the medicine cup to be instantly increased and punctures the bottom of the blind hole to enter the pipe body, the blind hole is obliquely arranged and arranged on the side wall of the medicine cup, so that the gas forms high-speed rotating vortex in the pipe body and pushes forward high-pressure inert gas in the pipe body; the eddy current rotating at high speed generates friction (the central angular speed is large) due to different angular speeds, the friction occurs layer by layer, the friction energy of the central layer is lost, the gas temperature is low, the energy of the outer layer is increased, and the temperature is increased; when the gas is pushed to the direction of the exhaust assembly, the gas with low temperature in the central layer can directly pass through the center of the filter cylinder and is exhausted out of the generator through the exhaust assembly; the high gas of outer temperature enters into the circuitous runner of arranging through the filtration pore of crossing on the cartridge filter lateral wall in, and carry out the heat exchange with the cartridge filter, thereby the gas temperature has been reduced, enter into the cartridge filter through the filtration pore of crossing on the cartridge filter inside wall at last, and outside the generator is discharged through exhaust assembly, avoid overheated gas to scald the passenger on the one hand, on the other hand makes low temperature gas and ambient temperature more approximate, it is few with heat exchange around, the dwell time of gas in the gasbag is of a specified duration, the gasbag is more lasting to human guard time, thereby the mesh that does benefit to the personal safety has been reached.
Preferably, one end of the filter cartridge is close to the medicine cup, the other end of the filter cartridge is far away from the medicine cup, the diameter of the filter cartridge is gradually increased from one end close to the medicine cup to the other end, a filter screen is arranged in the filter cartridge, the filter screen is fixedly connected with the inner side wall of the filter cartridge, and the filter screen is positioned on the side face of a filter hole in the inner side wall of the filter cartridge. The diameter of the filter cartridge is gradually increased from one end close to the medicine cup to the other end, so that gas with high temperature at the outer layer can enter a circuitous flow channel through the filter holes on the outer side wall of the filter cartridge to perform heat exchange, and meanwhile, gas with low temperature at the central layer can pass through the center of the filter cartridge, thereby improving the separation effect of cold and hot gases; the filter screen is used for filtering gas with low temperature in the central layer; the filter screen is located the side of the filtration pore on the cartridge filter inside wall, is convenient for the outer gas after the thermal treatment with the cartridge filter to pass through.
Preferably, a cavity communicated with the filtering hole is formed in the side wall of the filter cartridge, a baffle is arranged in the cavity, one end of the baffle is close to the medicine cup, the other end of the baffle is far away from the medicine cup and is fixedly connected with the side wall of the cavity, and the flow channel is in a C shape formed by the baffle after the cavity is separated. The gas with high outer layer temperature enters the cavity from the filter holes on the outer side wall of the filter cylinder and flows to the other side corresponding to the baffle plate from one side of the baffle plate along the C-shaped flow channel, so that the gas continuously generates heat exchange with the filter cylinder when flowing along the flow channel in the cavity, and the effect of cooling the gas is achieved.
Preferably, the density of the filter holes on the outer side wall of the filter cartridge is gradually increased from one end of the filter cartridge close to the medicine cup to the other end. The design makes the great majority of gas that outer layer temperature is high enter into the runner from the cartridge filter one end of keeping away from the medicine cup in, is favorable to prolonging the flow path of gas in the runner, improves heat exchange efficiency.
Preferably, the filter hole on the inner side wall of the filter cartridge is positioned at one end of the filter cartridge far away from the medicine cup. The design further prolongs the flow path of the gas with high temperature of the outer layer in the flow channel, thereby further improving the heat exchange efficiency.
Preferably, the filter holes on the inner side wall of the filter cylinder are uniformly distributed along the circumferential direction of the filter cylinder. The efficiency of the gas after heat exchange discharged from the flow channel is ensured, and meanwhile, the flow path of the gas in the flow channel is prolonged as much as possible, thereby being beneficial to improving the heat exchange efficiency of the gas.
Preferably, the thickness of the bottom of the medicine cup is larger than that of the bottom of the blind hole. The high-pressure gas that is favorable to preventing the medicine cup punctures medicine cup bottom for the gaseous bottom of only puncturing the blind hole in the medicine cup flows from the lateral wall of medicine cup, forms high-speed rotatory vortex in the body.
Preferably, the exhaust assembly comprises an exhaust pipe sleeve, the exhaust pipe sleeve is connected with the end part of the pipe body in a sealing mode, one end of the exhaust pipe sleeve is an open end and is located in the pipe body, the inside of the exhaust pipe sleeve is communicated with the inside of the filter cylinder through the open end, a rupture membrane is fixed in the open end, the other end of the exhaust pipe sleeve is sealed and is located outside the pipe body, and a plurality of air outlet holes which are uniformly distributed are formed in the side wall of one end, located outside the pipe body, of the exhaust pipe sleeve. The filtered and cooled gas breaks the rupture membrane and enters the exhaust pipe sleeve, and then is discharged into the airbag through the air outlet hole so as to protect the safety of passengers.
Preferably, the outer side wall of the exhaust pipe sleeve is provided with a flange edge, and the exhaust pipe sleeve is in friction welding with the end part of the pipe body through the flange edge. The friction welding is favorable for enhancing the connection strength of the pipe body and the air outlet pipe sleeve, and meanwhile, the air tightness is improved.
Preferably, the ignition tube assembly comprises an ignition tube seat and an ignition tube body, the end part of the ignition tube seat is connected with the end part of the tube body in a sealing mode, the ignition tube body is fixedly installed in the ignition tube seat, one end of the ignition tube body is communicated with the outside of the ignition tube seat, and the other end of the ignition tube body is located in the opening end of the medicine cup. One end of the ignition tube body is communicated with the outside of the ignition tube seat, so that external current is input to the ignition tube body, the ignition tube body is excited, flame is released from the other end of the ignition tube body, transfer powder is ignited, and high-temperature gas and flame are released to enable the pressure in the tube body to rise rapidly.
The invention has the beneficial effects that: on one hand, the passenger is prevented from being scalded by the overheated gas, on the other hand, the low-temperature gas and the ambient temperature are closer, the heat exchange with the surroundings is less, the pressure maintaining time of the gas in the air bag is long, and the protection time of the air bag on the human body is more lasting, so that the aim of benefiting the personal safety is fulfilled; the separation effect of cold and hot gas is improved; the efficiency of discharging the gas after heat exchange from the flow channel is ensured, and meanwhile, the flow path of the gas in the flow channel is prolonged as much as possible, so that the heat exchange efficiency of the gas is improved; the air tightness is good.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a filter cartridge;
fig. 3 is an enlarged view of a structure at a in fig. 1.
In the figure: 1. the ignition device comprises a pipe body, 2 parts of an ignition device, 3 parts of a explosive cup, 4 parts of an ignition pipe assembly, 5 parts of a transfer charge, 6 parts of a blind hole, 7 parts of a filter cylinder, 8 parts of an exhaust assembly, 9 parts of a flow passage, 10 parts of a filter hole, 11 parts of a filter screen, 12 parts of a cavity, 13 parts of a baffle plate, 14 parts of an exhaust pipe sleeve, 15 parts of a rupture membrane, 16 parts of an air outlet hole, 17 parts of a flange edge, 18 parts of an ignition pipe seat and 19 parts of an ignition pipe body.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
In the embodiment shown in fig. 1, 2 and 3, a hybrid generator capable of reducing gas temperature comprises a tube body 1, high-pressure inert gas is arranged in the tube body 1, an ignition device 2 is arranged at one end of the tube body 1, the ignition device 2 comprises a medicine cup 3 and an ignition tube assembly 4, the medicine cup 3 is arranged in the tube body 1, the ignition tube assembly 4 is arranged outside the tube body 1, the ignition tube assembly 4 is fixedly connected with the end part of the tube body 1 and the open end of the medicine cup 3, a propellant 5 is arranged in the medicine cup 3, a plurality of obliquely arranged blind holes 6 are arranged on the side wall of the medicine cup 3, the bottom of the medicine cup 3 is sealed, a filter cartridge 7 and an exhaust assembly 8 are fixed at the other end of the tube body 1, the filter cartridge 7 is arranged in the tube body 1, a circuitously arranged flow channel 9 is arranged in the side wall of the filter cartridge 7, a plurality of filter holes 10 communicated with the flow channel 9 are arranged on the inner and outer side wall of the filter cartridge 7, and the exhaust assembly 8 is arranged outside the tube body 1.
As shown in fig. 1 and 2, one end of the filter cartridge 7 is close to the cup 3, the other end of the filter cartridge 7 is far away from the cup 3, the diameter of the filter cartridge 7 gradually increases from the end close to the cup 3 to the other end, a filter screen 11 is arranged in the filter cartridge 7, the filter screen 11 is fixedly connected with the inner side wall of the filter cartridge 7, and the filter screen 11 is located on the side surface of the filter hole 10 on the inner side wall of the filter cartridge 7.
As shown in fig. 2, a cavity 12 communicated with the filtering hole 10 is provided in the side wall of the filtering cylinder 7, a baffle 13 is provided in the cavity 12, one end of the baffle 13 is close to the medicine cup 3, the other end of the baffle 13 is far away from the medicine cup 3 and is fixedly connected with the side wall of the cavity 12, and the flow channel 9 is in a C-shape formed by the baffle 13 separating the cavity 12.
As shown in fig. 2, the density of the filter holes 10 on the outer side wall of the filter cartridge 7 is gradually increased from one end of the filter cartridge 7 near the medicine cup 3 to the other end. The filter holes 10 on the inner side wall of the filter cartridge 7 are positioned at one end of the filter cartridge 7 far away from the medicine cup 3. The filter holes 10 on the inner side wall of the filter cartridge 7 are uniformly distributed along the circumferential direction of the filter cartridge 7.
As shown in fig. 3, the thickness of the bottom of the medicine cup 3 is larger than that of the bottom of the blind hole 6.
As shown in fig. 1, the exhaust assembly 8 includes an exhaust pipe sleeve 14, the exhaust pipe sleeve 14 is hermetically connected to an end of the pipe body 1, one end of the exhaust pipe sleeve 14 is an open end and is located inside the pipe body 1, the inside of the exhaust pipe sleeve 14 is communicated with the inside of the filter cartridge 7 through the open end, a rupture disk 15 is fixed inside the open end, the other end of the exhaust pipe sleeve 14 is sealed and is located outside the pipe body 1, and a plurality of air outlets 16 are uniformly distributed on a side wall of one end of the exhaust pipe sleeve 14 located outside the pipe body 1.
As shown in fig. 1, a flange 17 is provided on an outer side wall of the exhaust pipe cover 14, and the exhaust pipe cover 14 is friction-welded to an end of the pipe body 1 via the flange 17.
As shown in fig. 1, the squib assembly 4 includes a squib holder 18 and a squib body 19, an end of the squib holder 18 is hermetically connected with an end of the tube body 1, the squib body 19 is fixedly mounted in the squib holder 18, one end of the squib body 19 is communicated with an outside of the squib holder 18, and the other end of the squib body 19 is located in an open end of the cup 3.
External current is input to the ignition tube body 19, so that the ignition tube body 19 is excited, flame is released from the ignition tube body 19, the booster 5 is ignited to generate gas, the generated gas enables the air pressure in the explosive cup 3 to be instantly increased and punctures the bottom of the blind hole 6 to enter the tube body 1, the blind hole 6 is obliquely arranged and arranged on the side wall of the explosive cup 3, so that the gas forms high-speed rotating vortex in the tube body 1 and forwards pushes high-pressure inert gas in the tube body 1; the eddy current rotating at high speed generates friction (the central angular speed is large) due to different angular speeds, the friction occurs layer by layer, the friction energy of the central layer is lost, the gas temperature is low, the energy of the outer layer is increased, and the temperature is increased; when the gas is pushed to the direction of the exhaust assembly 8, the gas with low temperature at the central layer can directly pass through the center of the filter cylinder 7, is filtered by the filter screen 11 and is exhausted out of the generator through the exhaust assembly 8; the gas with high outer layer temperature enters the circuitous flow channel 9 through the filtering holes 10 on the outer side wall of the filter cylinder 7 and exchanges heat with the filter cylinder 7, so that the gas temperature is reduced, and finally enters the filter cylinder 7 through the filtering holes 10 on the inner side wall of the filter cylinder 7 and is discharged out of the generator through the exhaust assembly 8; when the filtered and cooled gas is discharged out of the generator through the exhaust assembly 8, the rupture disk 15 is ruptured to enter the exhaust pipe sleeve 14, and then the gas is discharged into the airbag through the gas outlet 16, so as to protect the safety of passengers.
The diameter of the filter cartridge 7 is gradually increased from one end close to the medicine cup 3 to the other end, which is beneficial to the heat exchange of the gas with high temperature at the outer layer entering the circuitous flow channel 9 through the filter holes 10 on the outer side wall of the filter cartridge 7, and meanwhile, the gas with low temperature at the central layer can pass through the center of the filter cartridge 7, thereby improving the separation effect of cold and hot gases.
When the gas with high outer layer temperature enters the flow channel 9, the gas enters the cavity 12 from the filter holes 10 on the outer side wall of the filter cylinder 7 and flows to the other side corresponding to the baffle 13 from one side of the baffle 13 along the C-shaped flow channel 9, so that the gas continuously generates heat exchange with the filter cylinder 7 when flowing along the flow channel 9 in the cavity 12, and the effect of cooling the gas is achieved.
Claims (6)
1. A hybrid generator capable of reducing gas temperature is characterized by comprising a pipe body (1), high-pressure inert gas is arranged in the pipe body (1), an ignition device (2) is arranged at one end of the pipe body (1), the ignition device (2) comprises a medicine cup (3) and an ignition tube assembly (4), the medicine cup (3) is located in the pipe body (1), the ignition tube assembly (4) is located outside the pipe body (1), the ignition tube assembly (4) is respectively and fixedly connected with the end portion of the pipe body (1) and the open end of the medicine cup (3), a transfer charge (5) is arranged in the medicine cup (3), a plurality of obliquely arranged blind holes (6) are formed in the inner side wall of the medicine cup (3), the open end of each blind hole (6) is far away from the bottom of the medicine cup (3), the bottom of each blind hole (6) is close to the bottom of the medicine cup (3), the bottom of the medicine cup (3) is sealed, a filter cartridge (7) and an exhaust assembly (8) are fixed to the other end of the pipe body (1), the filter cartridge (7) is located in the pipe body (1), a plurality of filter cartridges (9) are arranged in the outer side wall of the filter cartridge (7), a plurality of filter flow channels (9) are communicated with exhaust flow passages (8) respectively, and a plurality of filter flow channels (10) are formed in the filter assembly (9), the one end of cartridge filter (7) is close to medicine cup (3), medicine cup (3) are kept away from to the other end of cartridge filter (7), the diameter of cartridge filter (7) is crescent from the one end that is close to medicine cup (3) to the other end, be equipped with filter screen (11) in cartridge filter (7), the inside wall fixed connection of filter screen (11) and cartridge filter (7), one side of medicine cup (3) is kept away from to filter hole (10) that filter screen (11) are located on cartridge filter (7) inside wall, be equipped with in the lateral wall of cartridge filter (7) and filter cavity (12) that hole (10) are linked together, be equipped with baffle (13) in cavity (12), the one end of baffle (13) is close to medicine cup (3), the other end of baffle (13) is kept away from medicine cup (3) and with the lateral wall fixed connection of cavity (12), the shape of runner (9) is the C font that forms behind cavity (12) is separated by baffle (13), filter hole (10) on cartridge filter (7) inside wall is located the one end that medicine cup (3) keep away from medicine cup (3), the thickness of medicine cup (3) bottom is greater than the thickness of medicine cup (6).
2. The generator of claim 1, wherein the density of the filter holes (10) on the outer wall of the filter cartridge (7) increases from the end of the filter cartridge (7) near the cup (3) to the other end.
3. The generator of claim 1, wherein the filter holes (10) are uniformly distributed along the circumference of the filter cartridge (7) on the inner wall of the filter cartridge (7).
4. The generator of claim 1, wherein the exhaust assembly (8) comprises an exhaust pipe sleeve (14), the exhaust pipe sleeve (14) is connected with the end of the pipe body (1) in a sealing manner, one end of the exhaust pipe sleeve (14) is an open end and is located inside the pipe body (1), the inside of the exhaust pipe sleeve (14) is communicated with the inside of the filter cartridge (7) through the open end, a rupture disk (15) is fixed inside the open end, the other end of the exhaust pipe sleeve (14) is sealed and is located outside the pipe body (1), and a plurality of uniformly distributed gas outlet holes (16) are formed in the side wall of one end of the exhaust pipe sleeve (14) located outside the pipe body (1).
5. The generator as claimed in claim 4, characterized in that the outer wall of the exhaust pipe housing (14) is provided with a flange (17), and the exhaust pipe housing (14) is friction welded to the end of the pipe body (1) via the flange (17).
6. The generator of claim 1, wherein the squib assembly (4) comprises a squib holder (18) and a squib body (19), the end of the squib holder (18) is connected with the end of the tube body (1) in a sealing manner, the squib body (19) is fixedly arranged in the squib holder (18), one end of the squib body (19) is communicated with the outside of the squib holder (18), and the other end of the squib body (19) is positioned in the opening end of the medicine cup (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210174706.4A CN114572148B (en) | 2022-02-24 | 2022-02-24 | Hybrid generator capable of reducing gas temperature |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210174706.4A CN114572148B (en) | 2022-02-24 | 2022-02-24 | Hybrid generator capable of reducing gas temperature |
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| Publication Number | Publication Date |
|---|---|
| CN114572148A CN114572148A (en) | 2022-06-03 |
| CN114572148B true CN114572148B (en) | 2023-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210174706.4A Active CN114572148B (en) | 2022-02-24 | 2022-02-24 | Hybrid generator capable of reducing gas temperature |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021123691A1 (en) * | 2021-09-14 | 2023-03-16 | Zf Airbag Germany Gmbh | GAS GENERATOR FOR A VEHICLE SECURITY SYSTEM, GAS BAG MODULE AND VEHICLE SECURITY SYSTEM AND METHOD OF OPERATING AN GAS GENERATOR |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1147950A2 (en) * | 2000-04-17 | 2001-10-24 | Wilhelm Biemold | Gas generator, in particular for an airbag |
| CN1868980A (en) * | 2001-11-30 | 2006-11-29 | 大赛璐化学工业株式会社 | Inflator and airbag system |
| CN203391727U (en) * | 2013-07-10 | 2014-01-15 | 百利得(湖州)汽车安全系统有限公司 | Air generator for lateral air bag |
| CN110809539A (en) * | 2017-04-25 | 2020-02-18 | 天合安全气囊系统有限责任公司 | Generator, airbag module, vehicle safety system and method for purifying a pyrotechnically generated gas |
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| CN112061072A (en) * | 2020-08-13 | 2020-12-11 | 均胜汽车安全系统(湖州)有限公司 | Gas generator capable of reducing influence of ambient temperature on performance |
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| DE102011115518A1 (en) * | 2011-10-11 | 2013-04-11 | Trw Airbag Systems Gmbh | Gas generator, module with a gas generator, vehicle safety system and method for operating a vehicle passenger protection system |
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| CN211107306U (en) * | 2019-11-22 | 2020-07-28 | 延锋汽车智能安全系统有限责任公司 | Tubular hybrid gas generator for vehicle airbag and airbag |
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|---|---|
| CN114572148A (en) | 2022-06-03 |
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