Integral type gas generator with guide pipe

Abstract

The utility model discloses an integral type gas generator with a conduit, which comprises a gas generator body, the conduit is arranged at the output end of the gas generator body, the conduit comprises a pipe joint used for being connected with the gas generator body, the end part of the pipe joint is connected with a gas delivery pipe, and at least one output end is arranged on the gas delivery pipe. A plurality of output holes are formed in the output end, and gas conveying spaces which are communicated with one another are formed in the pipe joint, the gas conveying pipe and the output end. The generator can be integrally arranged outside the safety air bag, the relative position of the generator and the safety air bag can be conveniently adjusted according to the structure and the position of a vehicle body only by arranging the air guide pipe part with the smaller diameter in the module, the requirement for the thickness of the air bag is lowered, and meanwhile the generator can be adjusted according to the difference of the needed air bag position and the air bag volume. And a plurality of output ends can be arranged on the gas conveying pipe, so that one gas generator can meet the inflation requirements of a plurality of safety airbags at the same time.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gas generator, especially to a kind of whole gas generator with conduit. BACKGROUND

[0002] Gas generator is a kind of device that releases gas by chemical reaction (combustion or decomposition) or physical compression, which is widely used in the field of automobile airbag.

[0003] Traditional gas generator is mostly or entirely built in airbag, and the corresponding airbag is thicker. With the development of new vehicles, especially the popularity of electric vehicles, due to the reduction of instrument desk space or the development of overhead airbag, there are more stringent requirements for the thickness of airbag, and the corresponding design has not recommended the generator main body and airbag to be in a chamber.

[0004] Therefore, the skilled in the art proposes a kind of whole gas generator with conduit to provide a new solution to solve the above technical problems. UTILITY MODEL CONTENT

[0005] Therefore, it is necessary to provide a kind of whole gas generator with conduit to solve the problems in the above background art, which realizes that the generator is placed outside the airbag, and only the conduit with smaller diameter than the generator body is placed in the airbag module.

[0006] In order to solve the above technical problems, the utility model adopts the technical scheme as follows:

[0007] The whole gas generator with conduit includes a gas generator body, an output end of the gas generator body is provided with a conduit, the conduit includes a pipe joint for connecting with the gas generator body, an end of the pipe joint is connected with a gas conveying pipe, at least one output end is arranged on the gas conveying pipe, a plurality of output holes are arranged on the output end, the inside of the pipe joint, the gas conveying pipe and the output end forms a gas conveying space in communication.

[0008] Preferably, the pipe joint is welded on the output end of the gas generator body.

[0009] Preferably, the plurality of output holes are arranged in single row or multiple rows.

[0010] Preferably, the plurality of output holes are arranged staggered.

[0011] Preferably, two output ends are connected on the gas conveying pipe.

[0012] Preferably, a plurality of output ends are connected on the gas conveying pipe.

[0013] Preferably, the output end of the gas generator body is welded with a flow guide cover, and the pipe joint is connected outside the flow guide cover.

[0014] Preferably, the pipe joint is welded outside the flow guide cover.

[0015] Preferably, the outside of the flow guide cover is provided with a crimping groove, and the pipe joint is crimped outside the flow guide cover through the crimping groove.

[0016] Preferably, the outside of the flow guide cover is provided with a threaded section, the inside of the pipe joint is provided with a threaded connection groove matched with the threaded section, and the pipe joint is connected with the flow guide cover through the cooperation of the threaded connection groove and the threaded section.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1、The utility model discloses a gas generator can be placed in the outside of the safety air bag, only need to place the smaller diameter gas guide pipe in the module, the relative position of the gas generator and the safety air bag can be adjusted according to the structure and position of the vehicle body, and the thickness requirement of the air bag is reduced.

[0019] 2、The utility model discloses at least one output end cooperates with the gas delivery pipe, and according to the different position and volume of the air bag, a plurality of output ends can be arranged on the gas delivery pipe, so that one gas generator can meet the inflation demand of a plurality of safety air bags. DRAWINGS

[0020] In order to more clearly illustrate the scheme in the utility model, the following will briefly introduce the drawings needed in the embodiment description, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to the drawings without creating labor.

[0021] Figure 1 It is a structural schematic view of the gas generator body and the guide pipe of the utility model;

[0022] Figure 2 It is a sectional view of the structural schematic view of the gas generator body and the guide pipe of the utility model;

[0023] Figure 3 It is a structural schematic view of the output hole arranged in a single row of the utility model;

[0024] Figure 4 It is a structural schematic view of the output hole arranged in a double row of the utility model;

[0025] Figure 5 It is a structural schematic view of the output hole arranged in a plurality of rows of the utility model;

[0026] Figure 6 Structure diagram of the utility model for a single straight pipe structure of the conduit;

[0027] Figure 7 Structure diagram of the utility model for a special-shaped pipe design of the conduit;

[0028] Figure 8 Structure diagram of the utility model for an L-shaped pipe design of the conduit;

[0029] Figure 9 Structure diagram of the utility model for a Y-shaped pipe design of the conduit;

[0030] Figure 10 Structure diagram of the utility model for an F-shaped pipe design of the conduit;

[0031] Figure 11 Structure diagram of the utility model for an E-shaped pipe design of the conduit;

[0032] Figure 12 Structure diagram of the utility model for a T-shaped pipe design of the conduit;

[0033] Figure 13 Structure diagram of the utility model for a plurality of pipe combination design of the conduit;

[0034] Figure 14 Structure diagram of the utility model for the gas generator body, the flow guide cover and the conduit;

[0035] Figure 15 Structure diagram of the utility model for the gas generator body, the flow guide cover and the conduit;

[0036] Figure 16 Structure diagram of the utility model for the flow guide cover when welding with the conduit;

[0037] Figure 17 Structure diagram of the utility model for the flow guide cover when mechanically crimping with the conduit;

[0038] Figure 18 Structure diagram of the utility model for the flow guide cover when screwing with the conduit.

[0039] Marking in the figure is as follows:

[0040] 1, gas generator body; 2, flow guide cover; 3, conduit; 31, pipe joint; 32, pipe body; 33, output end; 34, output hole; 21, crimping groove; 22, threaded section. DETAILED DESCRIPTION

[0041] In order to make the person skilled in the art better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application.

[0042] Please refer to Figures 1-18 , including the gas generator body 1, the output end of the gas generator body 1 is provided with a conduit 3, the conduit 3 comprises a pipe joint 31 for connecting with the gas generator body 1, the pipe joint 31 is connected with a gas delivery pipe 32 at the end, the gas delivery pipe 32 is provided with at least one output end 33, a plurality of output holes 34 are formed on the output end 33, the pipe joint 31, the gas delivery pipe 32 and the inside of the output end 33 form a gas delivery space in communication with each other.

[0043] It should be noted that the gas delivery pipe 32 is connected with a single or two or more output ends 33, as shown in Figures 3-13 , the conduit 3 can be a single straight pipe, an elbow pipe, a U-shaped pipe, an L-shaped pipe or a T-shaped pipe, an F-shaped pipe, an E-shaped pipe with a plurality of output ends 33 combined by two or more pipes or a special-shaped combined pipe designed by a plurality of pipes combined, in actual application, a plurality of output ends can be provided on the gas delivery pipe according to the different positions and volumes of the air bag, so that one gas generator can meet the inflation requirements of a plurality of safety air bags at the same time;

[0044] On the other hand, different sizes of the output end 33, different diameters of the output hole 34, different numbers of the output hole 34 and different positions of the output hole 34 can be set to realize different gas delivery ratios, so as to realize the inflation requirements of the air bag at different positions or functions, thereby improving the adaptability.

[0045] Please refer to Figures 1-2 , the pipe joint is welded on the output end of the gas generator body.

[0046] Please refer to Figures 3-5 , the plurality of output holes 34 are arranged in a single row, a double row, a plurality of rows or staggered, so as to meet the inflation requirements of the air bag at different positions and functions, it should be noted that the position, number and diameter of the output hole will affect the output performance during inflation.

[0047] Please refer to Figures 14-18 , the output end of the gas generator body 1 is welded with a flow guide cover 2, and the pipe joint 31 is connected to the outside of the flow guide cover 2.

[0048] Please refer to Figures 14-18The pipe joint 31 can be welded, mechanically crimped or threaded on the outer side of the fairing 2, when the pipe joint 31 is mechanically crimped with the fairing 2, the outer side of the fairing 2 is provided with a crimping groove 21, and the pipe joint 31 is crimped on the outer side of the fairing 2 through the crimping groove 21, when the pipe joint 31 is threaded with the fairing 2, the outer side of the fairing 2 is provided with a threaded section 22, and the inner side of the pipe joint 31 is provided with a threaded connecting groove matched with the threaded section 22, and the pipe joint 31 is connected with the fairing 2 through the threaded connecting groove matched with the threaded section 22.

[0049] In the present application, unless otherwise clearly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0050] Obviously, the above-described embodiments are only a part of the embodiments of the present application, not all the embodiments, and the preferred embodiments of the present application are given in the drawings, but do not limit the patent scope of the present application. The present application can be realized in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some technical features. Any equivalent structure made by using the contents of the present application specification and drawings, directly or indirectly applied to other related technical fields, is also within the patent protection scope of the present application.

Claims

1. An integral gas generator with a conduit, comprising a gas generator body (1), characterized in that, The gas generator body (1) is equipped with a conduit (3) at its output end. The conduit (3) includes a pipe connector (31) for connecting to the gas generator body (1). The end of the pipe connector (31) is connected to a gas delivery pipe (32). The gas delivery pipe (32) is provided with at least one output end (33). The output end (33) is provided with a plurality of output holes (34). The pipe connector (31), the gas delivery pipe (32) and the interior of the output end (33) form a gas delivery space that is interconnected.

2. The integral gas generator with conduit according to claim 1, characterized in that, The pipe fitting (31) is welded to the output end of the gas generator body (1).

3. The integral gas generator with conduit according to claim 1, characterized in that, The output holes (34) are arranged in a single row or multiple rows.

4. The integral gas generator with conduit according to claim 1, characterized in that, The output holes (34) are arranged in an alternating manner.

5. An integral gas generator with a conduit according to claim 1, characterized in that, The gas supply pipe (32) is connected to two output terminals (33).

6. The integral gas generator with conduit according to claim 1, characterized in that, The gas supply pipe (32) is connected to multiple output terminals (33).

7. The integral gas generator with conduit according to claim 1, characterized in that, The output end of the gas generator body (1) is welded with a flow guide (2), and the pipe joint (31) is connected to the outside of the flow guide (2).

8. An integral gas generator with a conduit according to claim 7, characterized in that, The pipe joint (31) is welded to the outside of the flow guide (2).

9. An integral gas generator with a conduit according to claim 7, characterized in that, The outer side of the flow guide (2) is provided with a crimping groove (21), and the pipe joint (31) is crimped to the outer side of the flow guide (2) through the crimping groove (21).

10. An integral gas generator with a conduit according to claim 7, characterized in that, The outer side of the flow guide (2) is provided with a threaded section (22), and the inner side of the pipe joint (31) is provided with a threaded connection groove that is compatible with the threaded section (22). The pipe joint (31) is connected to the flow guide (2) through the engagement of the threaded section (22) with the threaded connection groove.

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