WO2012111912A2

WO2012111912A2 - Inflator for mounting protective gear

Info

Publication number: WO2012111912A2
Application number: PCT/KR2012/000027
Authority: WO
Inventors: 문만호
Original assignee: 주식회사 시큐어메딕
Priority date: 2011-02-14
Filing date: 2012-01-03
Publication date: 2012-08-23
Also published as: KR101066963B1; WO2012111912A3

Abstract

The present invention relates to an inflator for mounting protective gear. The inflator for mounting protective gear includes: a body part, in one side of which an explosion chamber is defined, and on the other side of which first and second guide parts, each having a smaller diameter than that of the explosion chamber and a plurality of heat-sink pins on the outer surface thereof, are disposed in series, the body part including a plurality of pressure-release holes defined in the first guide part adjacent to the explosion chamber; an upper cap sealing the explosion chamber, the upper cap inserting a power supply connector into the explosion chamber so as to cause an explosion using a trigger; a follower and follower-fixing part which are moved by means of the air that is heated and expanded when the explosion occurs in the explosion chamber so as to punch a cartridge coupled to the end of the second guide part, and which return to the original position thereof by means of an elastic part; a lateral surface case part spaced apart from the outside of the first and second guide parts, respectively, so as to provide a partition chamber between the outer surfaces of the first and second guide parts, the lateral surface case part performing heat-exchange between the heated and expanded air discharged through the pressure release holes and gas discharged from the cartridge; and a discharge part passing through the lateral surface case part and a side surface of the body part on which the second guide part is disposed, and being inserted into the lateral surface case part and the side surface of the body part so as to supply the gas discharged from the cartridge into the protective gear.

Description

Inflator for protective gear mounting

The present invention relates to an inflator for mounting protective equipment, and more particularly, to an inflator for mounting protective equipment that can reduce the generation of noise and heat generation.

In general, a two-wheeled vehicle has a higher risk of an accident than a four-wheeled vehicle, and has a very high probability of physical injury or death of a driver when an accident occurs.

By law, motorcycle drivers are required to wear helmets to protect the heads of at least two-wheelers, but they are unprotected against the spine, neck, chest, ribs, and lumbar spine. It is not.

By the choice of two-wheelers, they are wearing protective clothing with plastic guards, but they can easily slip on the road in the event of an accident.

In view of such a problem, an airbag jacket has been developed that protects the upper body of a two-wheeled vehicle driver when an accident occurs, such as an airbag of a four-wheeled vehicle.

The airbag jacket is provided with an inflator to expand the airbag jacket by ejecting the compressed gas filled therein when the power supply is triggered when the accident occurs. Since the inflator is provided in the airbag jacket, the inflator is sensitive to heat and noise unlike the airbag inflator of the automobile.

The conventional inflator is very loud due to the explosion of the gunpowder when triggered, the heat is seriously generated, there is a concern that the wearer of the protective gear is burned locally, apart from the accident, and also secondary damage caused by noise.

The problem to be solved by the present invention in consideration of the above problems is to provide an inflator for mounting a protective equipment that can minimize the noise generated during the triggering, and can quickly release heat.

In order to solve the above problems, the inflator for mounting the protective equipment of the present invention is provided with a percussion chamber on one side, and a first guide portion and a second guide portion having a smaller diameter than the percussion chamber are continuously provided on the other side. A plurality of heat dissipation fins are provided on the outer surfaces of the first guide part and the second guide part, the body part having a plurality of pressure releasing holes provided in the first guide part adjacent to the compartment, the airtight compartment and the power supply connector Is inserted into the compartment to move the percussion, and by the air is heated and expanded when the percussion in the percussion chamber to form a perforation in the cartridge coupled to the end of the second guide portion, the elastic portion to the original position Restoring the ball and the ball and the government, the first guide portion and the second guide portion spaced apart from the outside, the first guide portion and the second guide A side case portion which provides a compartment between the outer surface of the portion and heat exchange between the heat-expanded air discharged through the pressure relief ports and the gas discharged from the cartridge, the side case portion and the second guide It is inserted through the side of the body portion provided with a discharge portion for supplying the gas discharged from the cartridge to the protective equipment.

The protective device mounting inflator of the present invention configured as described above has a heat radiating fin on the outside of the body to exchange heat with a gas of a low temperature at which the heat generated when the explosion is expelled and released to facilitate heat dissipation, thereby protecting by heat generated in the inflator There is an effect that can prevent burn damage of the wearer.

In addition, the present invention by inducing the noise generated when triggered into the compartment, by using a sound absorbing material, there is an effect that can prevent the occurrence of secondary damage by the noise.

1 is an exploded perspective view of an inflator for mounting protective equipment according to a preferred embodiment of the present invention.

Figure 2 is a cross-sectional configuration of the combined state of the protective device mounting inflator according to an embodiment of the present invention.

3 and 4 are cross-sectional views according to the operating state of the present invention, respectively.

5 to 7 are diagrams illustrating another embodiment of the balls applied to the present invention, respectively.

Description of reference numerals

100: Body 110: Cock room

120: first guide portion 130: second guide portion

140: heat radiation fin 150: step

200: upper cap 210: power supply connector

220: trigger 310: public government

320: ball 321: hook

322: point 323,324: gas supply line

325: home 330: elastic part

400: side case portion 410: compartment

500: cartridge 600: discharge part

610: discharge ball

Hereinafter, with reference to the accompanying drawings embodiments of the inflator for mounting the protective equipment of the present invention configured as described above will be described in detail.

1 is an exploded perspective view of a protective equipment mounting inflator according to a preferred embodiment of the present invention, Figure 2 is a cross-sectional configuration of the combined state of FIG.

1 and 2, the protective device mounting inflator according to a preferred embodiment of the present invention, the cocking chamber 110 is provided on one side, the cocking chamber 110 to the other side of the cocking chamber 110 First and

second guide parts

120 and 130 having smaller diameters are continuously provided, and the first guide part 120 includes a plurality of pressure releasing holes 121 and the first and second guide parts. Body portion 100 including a heat radiation fin 140 provided on the outer surface of the 120 and 130, coupled to the cockpit 110 of the body portion 100 to prevent leakage of pressure, the power supply connector provided from the outside An upper cap 200 for connecting the 210 to the trigger 220 inserted into the trigger chamber 110 without leakage of pressure, and between the compartment 110 and the first guide part 120. Inserted and moved to the first guide portion 120 by the pressure at the trigger part 310 and the bottom portion of the ball portion 310 The ball point 320 is located in the second guide portion 130, the elastic portion 330 for restoring the ball 320 to the original position after the trigger, and the first portion of the body portion 100 It is coupled to the lower portion of one side of the body portion 100 so as to be spaced apart by a predetermined distance to the outside of the guide portion 120 and the second guide portion 130, of the first guide portion 120 and the second guide portion 130 The side case portion 400, which forms a compartment 410 between the outer surface, and stores the compressed gas, is coupled to the end of the second guide portion 130, the ball 320 is moved downward when triggered The cartridge 500 which is punctured by the gas and discharges the gas to the second guide part 130, and is inserted into the side of the second guide part 130 and the side case part 400, and discharged from the cartridge 500. A discharge unit 600 for discharging the gas to the outside.

Hereinafter, the configuration and operation of the protective device inflator according to a preferred embodiment of the present invention configured as described above in more detail.

First, in the present invention, the protective equipment is to protect the driver's body or property damage by inflating momentarily when an accident or a set signal is detected in the protective clothing, bicycle driver's guard, ski suit, other protective equipment and equipment of the motorcycle driver Say the gear.

As the inflator may be directly installed in the protective equipment, it is necessary to minimize the generation of noise and heat of the inflator as described above.

To this end, the body portion 100 has a tubular structure with a different diameter at both ends. That is, one end of the body portion 100 is larger in diameter, and the compartment 110 is provided with a gunpowder filled in the larger space portion.

An upper cap 200 is coupled to an opening of the compartment 110, and the upper cap 200 maintains a firmly coupled state to maintain a tight airtight state even when an explosive is exploded and supplies current from the outside. The power supply connector 210 flows into the compartment 110 in a state of maintaining airtightness, and heat is generated while current supplied through the power supply connector 210 is energized in the compartment 110. A trigger 220 for triggering gunpowder is provided.

The shape of the body portion 100 on the lower side of the compartment 110 is a shape in which the predetermined length extends downwardly to a smaller diameter than the diameter of one end of the compartment 110 is provided inside.

The other end side having the smaller diameter has a first guide part 120 and a second guide part 130 connected in a row from the compartment 110, which is one end of the body part 110, to the ball 320. ) Guides you to move stably.

In addition, the other end of the body portion 110 is provided with a heat dissipation fin 140, which will be described in detail later, the heat dissipation fin 140 is the temperature is lowered when the compressed gas is supplied to expand, the low temperature gas and the trigger Heat generated during heat exchange can be prevented.

The ball compartment 110 and the first guide portion 120 of the ball hole 310 is inserted to stabilize the ball at the bottom and to absorb the explosion heat of the trigger 220, the ball hole 310 At the bottom of the ball 320 is fixed.

The ball fixing unit 310 has a wider cross-sectional area than the ball and serves to easily transfer the air pressure to the ball.

Between the first guide portion 120 and the second guide portion 130 is provided with a stepped step 150 is provided with a through-hole in the center, the engaging portion 321 protruding from the outer surface of the ball 320 is coupled state In contact with the bottom of the step (150) to limit the ball 320 rises further.

The lower portion of the engaging portion 321 of the ball 320 is provided with an elastic portion 330 having a restoring force in a compressed state, the end of the ball 320 is a sharp portion 322 for puncturing the cartridge 500 It is provided.

The first guide portion 120 at the lower side of the hollow portion 310 is provided with a plurality of pressure relief holes 121 for releasing the pressure of the air expanded in the cock chamber 110.

The pressure relief port 121 guides the expanded and heated air in the compartment 110 to the compartment 410. The compartment is provided by the side case part 400 coupled to be spaced apart from the outer side of the first and

second guide parts

120 and 130 on the lower side of the body part 100.

Figure 3 is a cross-sectional configuration of the present invention showing a state in which the ball punctures the cartridge when triggered, Figure 4 is a cross-sectional configuration of the present invention showing a state in which the ball is restored after the trigger.

3 and 4, as described above, due to the expansion pressure of the air generated while explosives are exploded in the compartment 110, the ballast portion 310 and the ball 320 are formed by the first guide part 120. ) And the second guide portion 130 moves downward, wherein the cusp portion 322 of the ball 320 forms perforations in the cartridge 500 coupled to the end of the second guide portion 130. do.

At this time, the elastic part 330 is in a compressed state, but the compressed state is maintained by the pressure difference with the inflated air pressure, but the air expanded through the pressure relief holes 121 flows out into the compartment 410 and has a restoring force. Will have

The punching process of the cartridge 500 is performed within a very short time, and instantly returns to the restored state as shown in FIG. 4 from the punched state as shown in FIG. 3.

As shown in FIG. 4, the ball 320 and the ball fixing part 310 move upward along the first and

second guide parts

120 and 130 by the restoring force of the elastic part 330 to return to the original position. do.

The upper side of the cartridge 500 is perforated by the ball 320, the compressed carbon dioxide filled therein is expanded and discharged is discharged through the discharge hole 610 of the discharge unit 600. At this time, the leaked carbon dioxide instantly inflate the protective equipment to prevent the wearer's body damage.

In addition, a low temperature phenomenon occurs instantaneously by the expansion and discharge of carbon dioxide, which is transferred to the inner side of the second guide portion 130 and the lower side of the body portion 100, thereby lowering the temperature of the body portion 100. .

At this time, the heat-expanded air discharged to the compartment 410 in FIG. 3 is heat-exchanged in the compartment, thereby lowering the temperature. In this case, heat exchange and transition are performed between the heat-expanded air and the carbon dioxide having a low temperature by the heat dissipation fins 140, and thus, it is possible to lower the temperature of the heat-expanded air generated during the triggering.

In addition, as the heat-expanded air passes through the compartment 410, vortices are formed by the heat dissipation fins 140 so that the discharge rate is lowered. Accordingly, the heat exchange time is increased, thereby lowering the temperature and significantly reducing noise. Done.

That is, the heat dissipation fins 140 not only increase the surface area for heat exchange well, but also lower the exhaust speed of the heat-expanded air, and act as a silencer to simultaneously reduce heat and noise.

If necessary, the compartment 410 may be further filled with a sound absorbing material to further reduce or block noise and generated flames, and further reduce heat by delaying a discharge rate of air to expand and heat.

As such, the inflator for mounting the protective equipment according to the preferred embodiment of the present invention can reduce heat and noise generated at the same time, so as to prevent the secondary damage of the wearer, which may occur when supplying gas for inflating the protective equipment. do.

5 is another embodiment cross-sectional view of the ball applied to the present invention.

Referring to FIG. 5, in another embodiment of the ball applied to the present invention, a gas supply line 323 is provided inside the ball 320.

The gas supply line 323 is provided to penetrate the peak portion 322 of the ball 320 and the side portion adjacent to the ball fixing portion 310, and part of the carbon dioxide of the cartridge 500 in the state as shown in FIG. Alternatively, by supplying a part of the carbon dioxide supplied to the second guide portion 130 to the first guide portion 120 side, it is possible to further lower the temperature of the air that is heated and expanded by the percussion.

By lowering the temperature of the heat-expanded air, it is possible to shrink the air and thus can further reduce the noise generated when the air is discharged to the outside through the lower side of the side case 400.

6 is a cross-sectional view of another embodiment of a ball applied to the present invention.

Referring to FIG. 6, another embodiment of the ball 320 performs the same function as the gas supply line 323 shown in FIG. 5, but the gas supply line 324 is positioned around the peak portion 322. It is formed.

This is the same as that of FIG. 5, but the same function, by supplying the cold carbon dioxide to the first guide portion 120 to be directly mixed with the heat-expanded air it is possible to cool and compress the air.

Figure 7 is a block diagram of another embodiment of a ball applied to the present invention.

Referring to FIG. 7, a structure for cooling and cooling cold carbon dioxide emitted from the cartridge 500 by mixing with air that is thermally expanded by a percussion for convenience of processing, and considering the convenience of processing, the ball is disposed on the outer surface of the ball 320. The groove 325 in the vertical direction is formed.

As soon as the ball forms a hole in the cartridge 500 through the groove 325, a portion of the carbon dioxide rises along the groove to be supplied to the second guide part 130, and the ball 320 is restored as shown in FIG. 4. When it is moved to the first guide portion 120 is not only directly mixed with the heat-expanded air, but also lowers the temperature of the body portion 100 constituting the first guide portion 120 to exchange heat with the heat-expanded air Can lower the temperature.

As described above, the present invention has been described in detail with reference to preferred embodiments, but the present invention is not limited to the above-described embodiments, and various modifications are made within the scope of the claims and the detailed description of the invention and the accompanying drawings. It is possible to carry out by this and this also belongs to this invention.

The present invention is to protect the wearer's safety in the event of an accident, mounted on the protective equipment worn by two-wheeler driver, sue worker, etc., in particular to provide an inflator of a structure that minimizes noise and heat, industrial application is possible have.

Claims

A compartment is provided on one side, and a first guide portion and a second guide portion having a smaller diameter than that of the compartment are continuously provided on the other side, and a plurality of heat dissipation fins are provided on the outer surfaces of the first guide portion and the second guide portion. A body part having a plurality of pressure releasing holes provided in the first guide part adjacent to the compartment;

An upper cap which seals the percussion chamber and injects a power supply connector into the percussion chamber to trigger the percussion chamber;

A ball and a ball holding unit which are moved by the heat-expanded air when triggered in the cocking chamber to form a perforation in the cartridge coupled to the end of the second guide part, and are restored to their original position by the elastic unit;

A space between the first guide part and the second guide part spaced apart from each other, and providing a compartment between the outer surface of the first guide part and the second guide part, and the heat-expanded air discharged through the pressure relief ports; A side case part for exchanging heat between gases discharged from the cartridge; And

Protective equipment mounting inflator comprising a discharge portion for penetrating the side of the body portion provided with the side case portion and the second guide portion for supplying the gas discharged from the cartridge to the protective equipment.
The method of claim 1,

The compartment is

Protective equipment mounting inflator, characterized in that the filling with the sound absorbing material.
The method of claim 1,

The ball,

And a gas supply line extending from the peak portion forming the perforation to the cartridge to the side surface of the upper side to supply the gas of the cartridge to the first guide portion and the discharge portion quickly.
The method of claim 1,

The ball,

And a gas supply line extending from the periphery of the peak portion forming the perforation to the cartridge to the side of the upper side to quickly supply the gas of the cartridge to the first guide portion and the outlet.
The method of claim 1,

The ball,

The groove in the vertical direction in the side portion is provided with a protective equipment mounting inflator, characterized in that to quickly supply the gas of the cartridge to the first guide portion and the outlet.