Safety air curtain and automobile

Abstract

The invention provides a safety air curtain and an automobile. The safety air curtain comprises an air bag, a lug assembly, a generator assembly and a drawstring assembly. The air bag is longitudinally arranged along a vehicle body and longitudinally spans a position from a front row A column to a B column of the vehicle; the lug piece assembly is fixed to an automobile body and connected with the air bag. The generator assembly is fixed to the automobile body, connected with the air bag and used for controlling the air bag to explode. The drawstring assembly is fixed to the automobile body, connected with the air bag and used for tensioning the air bag when the air bag is exploded. In the invention, the air bag is fixed on the vehicle body by using the lug assembly, so that the air bag is longitudinally arranged along the vehicle body and longitudinally crosses the position from the front row A column to the B column of the vehicle, and then the generator assembly is fixed on the vehicle body and is connected with the air bag, and when the vehicle is collided, the generator assembly receives an ignition signal to control the air bag to be ignited; after being exploded and unfolded, the air bag covers the position from a front row A column to a B column of the whole vehicle in the longitudinal direction of the vehicle body, and the protection area of the safety air curtain for protecting passengers is enlarged.

Description

Technical Field

[0001] The invention belongs to the technical field of safety air curtains, and in particular relates to a safety air curtain and a car. Background Art

[0002] At present, the airbags of automobiles are designed as two rows of protective airbags, and the generators are arranged in the side area above the B-pillar. However, in the second-row door models, the gullwing door structure cannot meet the requirements of the layout and deployment of conventional airbags, so the front and second row airbags need to be designed separately.

[0003] The existing safety curtain airbags cannot match the layout and deployment of gull-wing door models; there are currently no single-row safety curtain airbag products for gull-wing door models among conventional safety curtain airbags. Based on the layout position and protection requirements of gull-wing doors, a safety curtain airbag is designed that can meet the full-size safety protection performance requirements of the front row of gull-wing cars. Summary of the invention

[0004] The invention provides a safety air curtain to solve the problem that the existing safety air curtain cannot meet the full-size safety protection performance requirements of the front row of a gull-wing vehicle.

[0005] A safety air curtain comprises an air bag, an ear piece assembly, a generator assembly and a drawstring assembly;

[0006] The airbag is arranged longitudinally along the vehicle body, spanning from the front A-pillar to the B-pillar of the vehicle;

[0007] The ear piece assembly is fixed to the vehicle body and connected to the airbag bag;

[0008] The generator assembly is fixed to the vehicle body and connected to the airbag bag, and is used to control the explosion of the airbag bag;

[0009] The drawstring assembly is fixed to the vehicle body and connected to the airbag bag, and is used for tightening the airbag bag when the airbag bag is detonated.

[0010] Preferably, the first end of the airbag bag is arranged in the area of ​​the front B-pillar of the vehicle, and the second end of the airbag bag is arranged in the area of ​​the front A-pillar of the vehicle;

[0011] The first end of the drawstring assembly is fixed to the vehicle body close to the front B-pillar of the vehicle, and the second end of the drawstring assembly is connected to the second end of the airbag bag.

[0012] Preferably, the airbag bag comprises a safety bag and an air guide bag extending from the middle of the safety bag;

[0013] The safety bag is arranged in the longitudinal direction of the vehicle body, the first end of the safety bag is arranged in the area of ​​the front B-pillar of the vehicle, the second end of the safety bag is arranged in the area of ​​the front A-pillar of the vehicle, and the second end of the safety bag is connected to the drawstring assembly;

[0014] The air guide bag is connected to the generator assembly.

[0015] Preferably, a dividing strip is provided on the safety bag to divide the internal space of the safety bag to form a guide channel for guiding the airflow entering the safety bag.

[0016] Preferably, the separation zone includes a first separation zone, a second separation zone, a third separation zone and a fourth separation zone;

[0017] The first dividing strip is arranged in the middle of the safety bag, dividing the internal space of the safety bag into a front airbag cavity and a rear airbag cavity;

[0018] The second dividing strip is disposed in the rear airbag cavity to divide the rear airbag cavity to form a first guide path;

[0019] The third dividing strip and the fourth dividing strip are arranged in the front airbag cavity to divide the front airbag cavity to form a second guide path.

[0020] Preferably, the first separation strip is an arc-shaped separation strip, so that the front airbag cavity and the rear airbag cavity are interconnected;

[0021] The second dividing strip is a strip-shaped dividing strip, which is arranged in the middle area of ​​the rear airbag and divides the rear airbag cavity to form a first annular guide path;

[0022] The fourth dividing strip is a point-type dividing strip, which is arranged in the middle area of ​​the front airbag cavity and divides the front airbag cavity to form a second annular guide path;

[0023] The third dividing zone is an arc-shaped dividing zone, which is arranged on the upper inner wall of the second flow guiding path, and forms a bend in the upper part of the second flow guiding path that is divided into two parts.

[0024] Preferably, the ear assembly comprises a hanging ear, a first fastener and a first locking member;

[0025] The hanging ear is fixed on the safety bag, and the hanging ear is fixed on the vehicle body through the first fastener. The first locking member is installed on the first fastener and is used to lock the first fastener.

[0026] Preferably, the drawstring assembly comprises a drawstring, a hook, a second fastener and a second locking member;

[0027] The first end of the drawstring is connected to the safety bag, the second end of the drawstring is connected to the hook, the hook is fixed to the vehicle body through the second fastener, and the second locking member is installed on the second fastener for locking the second fastener.

[0028] Preferably, the generator assembly comprises a bracket body, a generator, a third fastener, a third locking member and a rivet bolt;

[0029] The bracket body is fixed to the vehicle body by a third fastener, and the generator is fixed to the bracket body and connected to the airbag bag;

[0030] The third locking member is installed on the third fastening member and is used to lock the third fastening member;

[0031] The first end of the rivet bolt is connected to the generator, and the second end of the rivet bolt is fixed to the vehicle body.

[0032] An automobile, comprising the safety air curtain, a body sheet metal part, a roof and an A / B pillar trim;

[0033] The safety airbag curtain is arranged on the body sheet metal along the longitudinal direction of the body, and the body sheet metal matches the roof and the A / B pillar trim to form a deployment gap, and the airbag bag is deployed from the deployment gap.

[0034] Preferably, the vehicle body sheet metal part comprises an X-direction sheet metal part and a B-pillar sheet metal part connected to a first end of the X-direction sheet metal part;

[0035] A plurality of mounting points are arranged at intervals along the longitudinal direction of the vehicle body on the X-direction sheet metal part, which are respectively used to mount the ear piece assembly, the generator assembly and the drawstring assembly.

[0036] Preferably, the mounting points include a first mounting point, a second mounting point and a third mounting point;

[0037] At least two of the first mounting points are arranged on the X-direction sheet metal part at intervals along the longitudinal direction of the vehicle body, and are used to mount at least two of the ear assemblies;

[0038] At least two of the second mounting points are arranged at intervals in the middle area of ​​the X-direction sheet metal part along the longitudinal direction of the vehicle body, and are used to mount the generator assembly;

[0039] The third mounting point is arranged at a position close to the second end of the X-direction sheet metal component and is used for mounting a drawstring assembly.

[0040] Preferably, the X-direction sheet metal component comprises an arc-shaped connecting arm arranged longitudinally of the vehicle body and an arc-shaped connecting portion extending from a first end of the arc-shaped connecting arm in the Z direction; one end of the arc-shaped connecting portion is connected to the B-pillar sheet metal component along the Z direction;

[0041] One of at least two of the first installation points is arranged on the arcuate connecting portion, the overlapping surface between the arcuate connecting arm and the arcuate connecting portion is S-shaped, and the safety bag is arranged at the portion where the arcuate connecting portion and the arcuate connecting arm meet to form an S-shape.

[0042] The present invention first uses an ear piece assembly to fix the airbag bag on the vehicle body, so that the airbag bag is arranged along the longitudinal direction of the vehicle body and spans the position from the front A-pillar to the B-pillar of the vehicle. Then the generator assembly is fixed on the vehicle body and connected to the airbag bag. When the vehicle collides, the generator assembly receives a detonation signal to control the detonation of the airbag bag. After the airbag bag is detonated and deployed, it covers the entire position from the front A-pillar to the B-pillar of the vehicle in the longitudinal direction of the vehicle body, thereby expanding the protective area of ​​the airbag curtain to protect the occupants. When the airbag bag is detonated, the airbag bag will be deployed instantly, the airbag bag in the B-pillar area will be restricted by the seat, and the airbag bag in the A-pillar area will not be tightened and restricted, and may deviate from the preset protection position (referring to the position from the front A-pillar to the B-pillar of the vehicle that protects the occupants). The drawstring assembly is fixed in the A-pillar area of ​​the vehicle body and connected to the airbag bag. The drawstring assembly can tighten the airbag bag to prevent the airbag bag from deviating from the preset protection position when deployed, thereby ensuring that the airbag bag can have a good protective effect.

[0043] The safety curtain airbag in this example is mainly used in the front row of the gull-wing door model. The first end of the airbag bag is arranged in the area of ​​the front B-pillar of the vehicle, and the second end of the airbag bag is arranged in the area of ​​the front A-pillar of the vehicle, spanning the front row of the vehicle in the longitudinal direction of the vehicle body. When the vehicle collides, the generator assembly controls the explosion of the airbag bag, and the airbag bag explodes and deploys to cover the entire front row of the vehicle in the longitudinal direction of the vehicle body. Compared with the existing safety curtain airbag, the protection area of ​​the safety curtain airbag is expanded to the B-pillar area, meeting the full-size safety protection performance requirements of the front row of gull-wing vehicles, improving the practicality of the equipment, and adapting to the layout position and protection requirements of gull-wing doors. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 is an axonometric view of the safety air curtain of the present invention;

[0045] Figure 2 is a cross-sectional view of the air bag of the present invention;

[0046] Figure 3 is a cross-sectional view of the middle ear piece assembly of the present invention;

[0047] Figure 4 is a cross-sectional view of the drawstring assembly of the present invention;

[0048] Figure 5 is a cross-sectional view of the bracket assembly of the present invention;

[0049] Figure 6 is an axonometric view of the air bag of the present invention;

[0050] Figure 7 is an expanded view of the air bag of the present invention;

[0051] Figure 8 It is an axonometric view of the X-axis sheet metal part of the present invention.

[0052] Among them, 1, airbag bag; 11, safety bag; 111, front airbag cavity; 112, rear airbag cavity; 12, air guide bag; 2, ear piece assembly; 21, hanging ear; 22, first fastener; 23, first locking piece; 3, generator assembly; 31, bracket body; 32, generator; 33, third fastener; 34, third locking piece; 35, rivet bolt; 4, drawstring assembly; 41, drawstring; 42, hook; 43, second fastener; 44, first Two locking parts; 5. Dividing strip; 51. First dividing strip; 52. Second dividing strip; 53. Third dividing strip; 54. Fourth dividing strip; 6. Guide channel; 61. First guide path; 62. Second guide path; 7. Body sheet metal; 71. X-axis sheet metal; 711. Arc-shaped connecting arm; 712. Arc-shaped connecting part; 72. B-pillar sheet metal; 8. Mounting point; 81. First mounting point; 82. Second mounting point; 83. Third mounting point. DETAILED DESCRIPTION

[0053] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0054] In the description of the present invention, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0055] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] The embodiment of the present invention provides a safety air curtain, referring to Figure 1 and Figure 7 The airbag includes an airbag bag 1, an ear piece assembly 2, a generator assembly 3 and a drawstring assembly 4; the airbag bag 1 is arranged along the longitudinal direction of the vehicle body, spanning the position from the front A-pillar to the B-pillar of the vehicle; the ear piece assembly 2 is fixed on the vehicle body and connected to the airbag bag 1; the generator assembly 3 is fixed on the vehicle body and connected to the airbag bag 1, and is used to control the explosion of the airbag bag 1; the drawstring assembly 4 is fixed on the vehicle body and connected to the airbag bag 1, and is used to tighten the airbag bag 1 when the airbag bag 1 explodes.

[0057] As an example, the ear piece assembly 2 is first used to fix the airbag bag 1 on the vehicle body, so that the airbag bag 1 is arranged along the longitudinal direction of the vehicle body, spanning the position from the front A-pillar to the B-pillar of the vehicle, and then the generator assembly 3 is fixed on the vehicle body and connected to the airbag bag 1. When the vehicle collides, the generator assembly 3 receives the detonation signal to control the detonation of the airbag bag 1. After the airbag bag 1 is detonated and deployed, it covers the entire position from the front A-pillar to the B-pillar of the vehicle in the longitudinal direction of the vehicle body, thereby expanding the protective area of ​​the airbag curtain to protect the occupants; when the airbag bag 1 is detonated, the airbag bag 1 will be deployed instantly, the airbag bag 1 in the B-pillar area will be restricted by the seat, and the airbag bag 1 in the A-pillar area will not be tightened and restricted, and may deviate from the preset protection position (referring to the position from the front A-pillar to the B-pillar of the vehicle that protects the occupants). The drawstring assembly 4 is fixed in the A-pillar area of ​​the vehicle body and connected to the airbag bag 1. The drawstring assembly 4 can tighten the airbag bag 1 to prevent the airbag bag 1 from deviating from the preset protection position when deployed, thereby ensuring that the airbag bag 1 can have a good protective effect.

[0058] The safety curtain airbag in this example is mainly used in the front row of the gull-wing door model. The first end of the airbag bag 1 is arranged in the area of ​​the front B-pillar of the vehicle, and the second end of the airbag bag 1 is arranged in the area of ​​the front A-pillar of the vehicle, spanning the front row of the vehicle in the longitudinal direction of the vehicle body. When the vehicle collides, the generator assembly 3 controls the airbag bag 1 to explode. After the airbag bag 1 explodes and expands, it covers the entire front row of the vehicle in the longitudinal direction of the vehicle body. Compared with the existing safety curtain airbags, the protection area of ​​the safety curtain airbag is expanded to the B-pillar area, meeting the full-size safety protection performance requirements of the front row of gull-wing vehicles, improving the practicality of the equipment, and adapting to the layout position and protection requirements of gull-wing doors.

[0059] In one embodiment, referring to Figure 1 The first end of the airbag bag 1 is arranged in the area of ​​the front B-pillar of the vehicle, and the second end of the airbag bag 1 is arranged in the area of ​​the front A-pillar of the vehicle; the first end of the pull strap assembly 4 is fixed to the vehicle body near the front B-pillar of the vehicle, and the second end of the pull strap assembly 4 is connected to the second end of the airbag bag 1.

[0060] As an example, the airbag bag 1 is arranged longitudinally along the vehicle body, the first end of the airbag bag 1 is arranged in the area of ​​the front B-pillar of the vehicle, and the second end of the airbag bag 1 is arranged in the area of ​​the front A-pillar of the vehicle. When the airbag bag 1 is detonated, the airbag bag 1 will be deployed instantly, the airbag bag 1 in the B-pillar area will be restricted by the seat, and the airbag bag 1 in the A-pillar area is not tightened and restricted, and may deviate from the preset protection position (referring to the position from the front A-pillar to the B-pillar of the vehicle for protecting the occupants). The first end of the pull strap assembly 4 is fixed on the vehicle body near the front B-pillar of the vehicle, and the second end of the pull strap assembly 4 is connected to the second end of the airbag bag 1, which can tighten the airbag bag 1 to prevent the airbag bag 1 from deviating from the preset protection position when deployed, thereby ensuring that the airbag bag 1 can play a good protective effect.

[0061] In one embodiment, referring to Figure 1 and Figure 2 The airbag bag 1 includes a safety bag 11 and an air guide bag 12 extending from the middle of the safety bag 11; the safety bag 11 is arranged along the longitudinal direction of the vehicle body, the first end of the safety bag 11 is arranged in the area of ​​the front B-pillar of the vehicle, the second end of the safety bag 11 is arranged in the area of ​​the front A-pillar of the vehicle, the second end of the safety bag 11 is connected to the drawstring assembly 4, and the safety bag 11 is connected to the generator assembly 3.

[0062] As an example, the airbag 1 includes a safety bag 11 and an air guide bag 12. The safety bag 11 is arranged along the longitudinal direction of the vehicle body. The first end of the safety bag 11 is arranged in the area of ​​the front B-pillar of the vehicle, and the second end of the safety bag 11 is arranged in the area of ​​the front A-pillar of the vehicle. The second end of the safety bag 11 is connected to the drawstring assembly 4. After the safety bag 11 is detonated and deployed, it covers the entire front position of the vehicle in the longitudinal direction of the vehicle body, spanning the area between the front A-pillar and the B-pillar of the vehicle. Compared with the existing safety airbag, the protection area of ​​the safety airbag is expanded to the B-pillar area, meeting the full-size safety protection performance requirements of the front row of the gull-wing car. The drawstring assembly 4 It is fixed in the A-pillar area of ​​the vehicle body and connected to the second end of the safety bag 11, which can tighten the airbag bag 1 to prevent the airbag bag 1 from deviating from the preset protection position when it is deployed, thereby ensuring that the airbag bag 1 can play a good protective effect; the air guide bag 12 extends from the middle of the safety bag 11, and the air guide bag 12 is connected to the generator assembly 3 by a clamp fixing method. When the vehicle collides, the generator assembly 3 inflates the safety bag 11 through the air guide bag 12 to control the explosion of the safety bag 11. The air guide bag 12 is located in the middle of the safety bag 11, which can make the overall deployment rate of the safety bag 11 more balanced, thereby ensuring its smooth deployment.

[0063] In one embodiment, referring to Figure 2 A dividing strip 5 is provided on the safety bag 11 to divide the inner space of the safety bag 11 to form a guide channel 6 for guiding the airflow entering the safety bag 11 .

[0064] As an example, the dividing strip 5 divides the internal space of the safety bag 11 to form a guide channel 6 for guiding the airflow entering the safety bag 11, increasing the balance of the overall deployment time of the safety bag 11, ensuring the protection effect of the driver and passengers, and improving the practicality of the equipment.

[0065] In one embodiment, referring to Figure 2 and Figure 7 The dividing strip 5 includes a first dividing strip 51, a second dividing strip 52, a third dividing strip 53 and a fourth dividing strip 54; the first dividing strip 51 is arranged in the middle of the safety bag 11, and separates the internal space of the safety bag 11 into a front airbag cavity 111 and a rear airbag cavity 112; the second dividing strip 52 is arranged in the rear airbag cavity 112, and separates the rear airbag cavity 112 to form a first guide path 61; the third dividing strip 53 and the fourth dividing strip 54 are arranged in the front airbag cavity 111, and separate the front airbag cavity 111 to form a second guide path 62.

[0066] As an example, the dividing strip 5 includes a first dividing strip 51, a second dividing strip 52, a third dividing strip 53 and a fourth dividing strip 54; the first dividing strip 51 is arranged in the middle of the safety bag 11, and separates the internal space of the safety bag 11 to form a front airbag chamber 111 and a rear airbag chamber 112. When the safety bag 11 is unfolded, the front airbag chamber 111 and the rear airbag chamber 112 begin to inflate at the same time, ensuring that the overall unfolding rate of the safety bag 11 is relatively balanced, ensuring its smooth unfolding. The second dividing strip 52 is arranged in the rear airbag chamber 112, and separates the rear airbag chamber 112 to form a first guide path 61. The gas flows into the rear airbag chamber 112 through the first guide path 61, so that the safety bag 11 corresponding to the rear airbag chamber 112 expands and unfolds, covering the rear half of the front row, preventing the head of the driver and passenger from being hit, and providing good protection for the driver and passenger. The third dividing strip 53 and the fourth dividing strip 54 are arranged in the front airbag cavity 111, dividing the front airbag cavity 111 to form a second guide path 62. The gas flows into the front airbag cavity 111 through the second guide path 62, causing the safety bag 11 corresponding to the front airbag cavity 111 to inflate and unfold, covering the rear half of the front row, thereby preventing the driver and passengers from getting hit on the head and providing good protection for the driver and passengers.

[0067] In one embodiment, referring to Figure 2 The first dividing strip 51 is an arc-shaped dividing strip, which allows the front airbag cavity 111 and the rear airbag cavity 112 to penetrate each other; the second dividing strip 52 is a strip-shaped dividing strip, which is arranged in the middle area of ​​the rear airbag cavity 112, dividing the rear airbag cavity 112 to form a first annular guide path 61;.

[0068] As an example, the first dividing strip 51 is an arc-shaped dividing strip, which is arranged in the middle of the safety bag 11 and is divided into two parts from the middle. The two parts are symmetrical to each other and are respectively arranged in the front airbag cavity 111 and the rear airbag cavity 112, so that the front airbag cavity 111 and the rear airbag cavity 112 of the safety bag 11 are interconnected, and the arc mouth of the arc-shaped dividing strip faces the side away from the air guide bag 12, ensuring that the gas can flow smoothly into the front airbag cavity 111 and the rear airbag cavity 112 of the safety bag 11 to avoid blocking the gas. The second dividing strip 52 is arranged in the middle area of ​​the rear airbag cavity 112, dividing the rear airbag cavity 112 to form a first annular guide path 61, so that the gas can quickly fill the rear airbag cavity 112; the fourth dividing strip 54 is a point-type dividing strip, which is arranged in the middle area of ​​the front airbag cavity 111, dividing the front airbag cavity 111 to form a second annular guide path 62, so that the gas can quickly fill the front airbag cavity 111; the third dividing strip 53 is an arc-shaped dividing strip, which is arranged on the upper inner wall of the second guide path 62, and a bend is formed in the upper part of the second annular guide path 62, which can slow down the speed of the gas filling the front airbag cavity 111. When the generator 3 inflates the safety bag 11, the inflation rates of the front airbag cavity 111 and the rear airbag cavity 112 are the same, so as to ensure that the overall deployment rate of the safety bag 11 is relatively balanced.

[0069] In one embodiment, referring to Figure 3 The ear assembly 2 includes a hanging ear 21, a first fastener 22 and a first locking member 23; the hanging ear 21 is fixed to the safety bag 11, the hanging ear 21 is fixed to the vehicle body through the first fastener 22, and the first locking member 23 is installed on the first fastener 22 for locking the first fastener 22.

[0070] As an example, a hook 21 is fixed on the safety bag 11 and is integrated with the safety bag 11. The hook 21 is fixed to the vehicle body by a first fastener 22. A first locking member 23 is installed on the first fastener 22 to lock the first fastener 22, thereby fixing the hook 21 and the safety bag 11 to the vehicle body, making it easy to install and disassemble the safety bag 11.

[0071] In one embodiment, referring to Figure 4 The drawstring assembly 4 includes a drawstring 41, a hook 42, a second fastener 43 and a second locking member 44; the first end of the drawstring 41 is connected to the safety bag 11, the second end of the drawstring 41 is connected to the hook 42, the hook 42 is fixed to the vehicle body through the second fastener 43, and the second locking member 44 is installed on the second fastener 43 for locking the second fastener 43.

[0072] As an example, when the safety bag 11 explodes, the safety bag 11 will unfold instantly, the safety bag 11 in the B-pillar area will be restricted by the seat, and the safety bag 11 in the A-pillar area will not be tightened and restricted, and may deviate from the preset protection position (referring to the position from the front A-pillar to the B-pillar of the vehicle that protects the occupants). The first end of the drawstring 41 is connected to the safety bag 11, and the second end of the drawstring 41 is connected to the hook 42. The hook 42 is fixed in the A-pillar area of ​​the vehicle body by the second fastener 43. The second locking member 44 is installed on the second fastener 43, which is used to lock the second fastener 43, so as to firmly fix the hook 42 and the drawstring 41 in the A-pillar area of ​​the vehicle body, and then the safety bag 11 can be tightened by the drawstring 41 to prevent the safety bag 11 from deviating from the preset protection position when unfolded, thereby ensuring that the safety bag 11 can play a good protective effect.

[0073] In one embodiment, referring to Figure 5 The generator assembly 3 includes a bracket body 31, a generator 32, a third fastener 33, a third locking member 34 and a rivet bolt 35; the bracket body 31 is fixed to the vehicle body through the third fastener 33, the generator 32 is fixed to the bracket body 31, and is connected to the airbag 1; the third locking member 34 is installed on the third fastener 33, and is used to lock the third fastener 33; the first end of the rivet bolt 35 is connected to the generator 32, and the second end of the rivet bolt 35 is fixed to the vehicle body.

[0074] As an example, both sides of the generator 32 are fastened to the bracket body 31, and the generator 32 is welded to the first end of the rivet bolt 35. The bracket body 31 is fixed to the vehicle body through the third fastener 33. The third locking member 34 is installed on the third fastener 33 to lock the third fastener 33, which is convenient for installation and disassembly of the bracket body 31. At the same time, the second end of the rivet bolt 35 is fixed to the vehicle body, and a double fastening method is adopted to prevent the generator 32 from loosening and ensure the stability of the generator 32.

[0075] An embodiment of the present invention provides a car, referring to Figure 1 , Figure 6 , Figure 7 and Figure 8 , including a safety airbag, a body sheet metal part 7, a roof and an A / B pillar trim; the safety airbag is arranged and fixed on the body sheet metal part 7 along the longitudinal direction of the body, the body sheet metal part 7 matches the roof and the A / B pillar trim to form a deployment gap, and the safety bag 11 of the airbag bag 1 is deployed from the deployment gap.

[0076] As an example, the body sheet metal 7 is matched with the ceiling and A / B pillar trim to form a deployment gap, and the ear piece assembly 2 is used to fix the airbag bag 1 to the body, so that the airbag bag 1 is arranged along the longitudinal direction of the body, spanning the position from the front A pillar to the B pillar of the vehicle, and then the generator assembly 3 is fixed to the body and connected to the airbag bag 1. When the vehicle collides, the generator assembly 3 receives the detonation signal to control the detonation of the airbag bag 1. After the airbag bag 1 is detonated and deployed, it covers the entire position from the front A pillar to the B pillar of the vehicle in the longitudinal direction of the body, expanding the protective area of ​​the airbag curtain to protect the occupants; when the airbag bag 1 is detonated, the airbag bag 1 will be deployed instantly, and the airbag bag 1 in the B pillar area will be restricted by the seat. If the airbag bag 1 in the A-pillar area is not tightened and restricted, it may deviate from the preset protection position (referring to the position from the front A-pillar to the B-pillar of the vehicle that protects the occupants). The drawstring assembly 4 is fixed in the A-pillar area of ​​the vehicle body and is connected to one end of the airbag bag 1. The drawstring assembly 5 can tighten the airbag bag 1 to prevent the airbag bag 1 from deviating from the preset protection position when it is deployed, thereby ensuring that the airbag bag 1 can play a good protective effect. The safety bag 11 of the airbag bag 1 is deployed from the deployment gap, which ensures that the safety bag 11 will not affect the matching relationship between the vehicle body sheet metal 7 and the ceiling and A / B-pillar trim, and that the deployment of the safety bag 11 is not affected by the assembly, and there is no twisting, folding, holes or other poor deployment phenomena.

[0077] In one embodiment, referring to Figure 6 , Figure 7 and Figure 8 The body sheet metal part 7 includes an X-direction sheet metal part 71 and a B-pillar sheet metal part 72 connected to a first end of the X-direction sheet metal part 71; a plurality of mounting points 8 are arranged on the X-direction sheet metal part 71 at intervals along the longitudinal direction of the body, which are used to mount the ear assembly 2, the generator assembly 3 and the pull strap assembly 4 respectively.

[0078] As an example, the vehicle body sheet metal 7 includes an X-direction sheet metal 71 and a B-pillar sheet metal 72. The B-pillar sheet metal 72 is connected to the first end of the X-direction sheet metal 71 and serves as a bracket for fixing the safety airbag. A plurality of mounting points 8 are arranged at intervals along the longitudinal direction of the vehicle body on the X-direction sheet metal 71. The plurality of mounting points 8 are respectively used to install the ear piece assembly 2, the generator assembly 3 and the drawstring assembly 4. The ear piece assembly 2 is used to fix the safety bag 11 on the X-direction sheet metal 71 to facilitate the installation and disassembly of the safety bag 11. The generator assembly 3 is used to inflate the safety bag 11 to ensure that the front and rear parts of the safety bag 11 are evenly deployed. When the airbag bag 1 explodes, the drawstring assembly 4 can tighten the safety bag 11 to prevent the safety bag 11 from deviating from the preset protection position when deployed, thereby ensuring that the safety bag 11 can play a good protective effect.

[0079] In one embodiment, referring to Figure 6 , Figure 7 and Figure 8The mounting point 8 includes a first mounting point 81, a second mounting point 82 and a third mounting point 83; at least two first mounting points 81 are arranged on the X-direction sheet metal 71 along the longitudinal direction of the vehicle body, and are used to install at least two ear piece assemblies 2; at least two second mounting points 82 are arranged in the middle area of ​​the X-direction sheet metal 71 along the longitudinal direction of the vehicle body, and are used to install the generator assembly 3; a third mounting point 83 is arranged at a position close to the second end of the X-direction sheet metal 71, and is used to install the drawstring assembly 4.

[0080] As an example, at least two first mounting points 81 are arranged on the X-direction sheet metal 71 at intervals along the longitudinal direction of the vehicle body, and are used to install at least two ear plate assemblies 2. The at least two ear plate assemblies 2 cooperate to fix the safety bag 11 on the X-direction sheet metal 71, so as to facilitate the installation and disassembly of the safety bag 11; at least two second mounting points 82 are arranged in the middle area of ​​the X-direction sheet metal 71 at intervals along the longitudinal direction of the vehicle body, and are used to install the generator assembly 3, so as to facilitate the inflation of the safety bag 11 and ensure that the front and rear parts of the safety bag 11 are evenly deployed; a third mounting point 83 is arranged at a position close to the second end of the X-direction sheet metal 71, and is used to install the drawstring assembly 4. When the airbag bag 1 explodes, the drawstring assembly 4 can tighten the safety bag 11 to prevent the safety bag 11 from deviating from the preset protection position when it is deployed, thereby ensuring that the safety bag 11 can play a good protective effect.

[0081] In one embodiment, referring to Figure 6 , Figure 7 and Figure 8 The X-direction sheet metal part 71 includes an arc-shaped connecting arm 711 arranged longitudinally of the vehicle body and an arc-shaped connecting portion 712 extending from a first end of the arc-shaped connecting arm 711 in the Z direction; one end of the arc-shaped connecting portion 712 is connected to the B-pillar sheet metal part 72 along the Z direction; one of the at least two first mounting points 81 is arranged on the arc-shaped connecting portion 712, the overlapping surface between the arc-shaped connecting arm 711 and the arc-shaped connecting portion 712 is S-shaped, and the part of the safety bag 11 arranged at the junction of the arc-shaped connecting portion 712 and the arc-shaped connecting arm 711 is S-shaped.

[0082] As an example, the X-direction sheet metal part 71 includes an arc-shaped connecting arm 711 and an arc-shaped connecting portion 712 arranged longitudinally of the vehicle body, the arc-shaped connecting portion 712 extends from the first end of the arc-shaped connecting arm 711 in the Z direction, and one end of the arc-shaped connecting portion 712 is connected to the B-pillar sheet metal part 72 along the Z direction. At least one of the two first mounting points 81 is set on the arc-shaped connecting portion 712, and the safety bag 11 can be arranged at the position of the B-pillar sheet metal part 72 accordingly, thereby expanding the protection area of ​​the safety bag 11 after detonation, and improving the equipment protection. The overlapping surface between the arc-shaped connecting arm 711 and the arc-shaped connecting part 712 is S-shaped, and the part of the safety bag 11 arranged at the junction of the arc-shaped connecting part 712 and the arc-shaped connecting arm 711 is S-shaped. The safety bag 11 is assembled in an S-shape in the B-pillar area, which not only ensures the matching relationship between the safety bag 11 and the body sheet metal 7, the ceiling and the A / B-pillar trim, but also makes the deployment of the safety bag 11 not affected by the assembly, and there is no twisting, folding, holes and other poor deployment phenomena, thereby realizing protection of the heads of the front passengers in the European wing door model and ensuring the protective performance of the safety airbag.

[0083] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A safety air curtain, characterized in that: It includes an air bag, an ear piece assembly, a generator assembly and a drawstring assembly; The airbag is arranged longitudinally along the vehicle body, spanning from the front A-pillar to the B-pillar of the vehicle; The ear piece assembly is fixed to the vehicle body and connected to the airbag bag; The generator assembly is fixed to the vehicle body and connected to the airbag bag, and is used to control the explosion of the airbag bag; The drawstring assembly is fixed to the vehicle body and connected to the airbag bag, and is used for tightening the airbag bag when the airbag bag is detonated.

2. The safety curtain airbag according to claim 1, characterized in that: The first end of the airbag bag is arranged in the area of ​​the front B-pillar of the vehicle, and the second end of the airbag bag is arranged in the area of ​​the front A-pillar of the vehicle; The first end of the drawstring assembly is fixed to the vehicle body close to the front B-pillar of the vehicle, and the second end of the drawstring assembly is connected to the second end of the airbag bag.

3. The safety curtain airbag according to claim 1, characterized in that: The airbag bag comprises a safety bag and an air guide bag extending from the middle of the safety bag; The safety bag is arranged in the longitudinal direction of the vehicle body, the first end of the safety bag is arranged in the area of ​​the front B-pillar of the vehicle, the second end of the safety bag is arranged in the area of ​​the front A-pillar of the vehicle, and the second end of the safety bag is connected to the drawstring assembly; The air guide bag is connected to the generator assembly.

4. The safety air curtain according to claim 3, characterized in that: The safety bag is provided with a dividing strip to divide the inner space of the safety bag to form a guide channel for guiding the airflow entering the safety bag.

5. The safety curtain airbag according to claim 4, characterized in that: The separation zone includes a first separation zone, a second separation zone, a third separation zone and a fourth separation zone; The first dividing strip is arranged in the middle of the safety bag, dividing the internal space of the safety bag into a front airbag cavity and a rear airbag cavity; The second dividing strip is disposed in the rear airbag cavity to divide the rear airbag cavity to form a first guide path; The third dividing strip and the fourth dividing strip are arranged in the front airbag cavity to divide the front airbag cavity to form a second guide path.

6. The safety curtain airbag according to claim 5, characterized in that: The first separation zone is an arc-shaped separation zone, so that the front airbag cavity and the rear airbag cavity are interconnected; The second dividing strip is a strip-shaped dividing strip, which is arranged in the middle area of ​​the rear airbag cavity and divides the rear airbag cavity to form a first annular guide path; The fourth dividing strip is a point-type dividing strip, which is arranged in the middle area of ​​the front airbag cavity and divides the front airbag cavity to form a second annular guide path; The third dividing zone is an arc-shaped dividing zone, which is arranged on the upper inner wall of the second flow guiding path, and forms a bend in the upper part of the second flow guiding path that is divided into two parts.

7. The safety curtain airbag according to claim 1, characterized in that: The ear piece assembly includes a hanging ear, a first fastener and a first locking member; The hanging ear is fixed on the safety bag, and the hanging ear is fixed on the vehicle body through the first fastener. The first locking member is installed on the first fastener and is used to lock the first fastener.

8. The safety curtain airbag according to claim 1, characterized in that: The drawstring assembly includes a drawstring, a hook, a second fastener and a second locking member; The first end of the drawstring is connected to the safety bag, the second end of the drawstring is connected to the hook, the hook is fixed to the vehicle body through the second fastener, and the second locking member is installed on the second fastener for locking the second fastener.

9. The safety curtain airbag according to claim 1, characterized in that: The generator assembly includes a bracket body, a generator, a third fastener, a third locking member and a rivet bolt; The bracket body is fixed to the vehicle body by a third fastener, and the generator is fixed to the bracket body and connected to the airbag bag; The third locking member is installed on the third fastening member and is used to lock the third fastening member; The first end of the rivet bolt is connected to the generator, and the second end of the rivet bolt is fixed to the vehicle body.

10. An automobile, characterized in that: The invention comprises the air curtain, the body sheet metal, the ceiling and the A / B pillar trim as described in any one of claims 1 to 8; The safety airbag curtain is arranged on the body sheet metal along the longitudinal direction of the body, and the body sheet metal matches the roof and the A / B pillar trim to form a deployment gap, and the airbag bag is deployed from the deployment gap.

11. The automobile according to claim 10, characterized in that: The body sheet metal part includes an X-direction sheet metal part and a B-pillar sheet metal part connected to a first end of the X-direction sheet metal part; A plurality of mounting points are arranged at intervals along the longitudinal direction of the vehicle body on the X-direction sheet metal part, which are respectively used to mount the ear piece assembly, the generator assembly and the drawstring assembly.

12. The automobile according to claim 11, characterized in that The mounting points include a first mounting point, a second mounting point and a third mounting point; At least two of the first mounting points are arranged on the X-direction sheet metal part at intervals along the longitudinal direction of the vehicle body, and are used to mount at least two of the ear assemblies; At least two of the second mounting points are arranged at intervals in the middle area of ​​the X-direction sheet metal part along the longitudinal direction of the vehicle body, and are used to mount the generator assembly; The third mounting point is arranged at a position close to the second end of the X-direction sheet metal component and is used for mounting a drawstring assembly.

13. The automobile according to claim 12, characterized in that The X-direction sheet metal component includes an arc-shaped connecting arm arranged longitudinally of the vehicle body and an arc-shaped connecting portion extending from a first end of the arc-shaped connecting arm in the Z direction; one end of the arc-shaped connecting portion is connected to the B-pillar sheet metal component along the Z direction; One of at least two of the first installation points is arranged on the arcuate connecting portion, the overlapping surface between the arcuate connecting arm and the arcuate connecting portion is S-shaped, and the safety bag is arranged at the portion where the arcuate connecting portion and the arcuate connecting arm meet to form an S-shape.

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