Air bag blowing control device

Abstract

The utility model provides an air bag blowing control device. The air bag blowing control device comprises a movement assembly, a main body support, a limiting flat plate and a sensor. The main body bracket is connected with the movement assembly and can reciprocate in the extension direction of the main body bracket; the limiting flat plate is arranged on the end face of one end of the main body support and is configured to limit the height of the blown air bag; through holes penetrating through the limiting flat plate and the main body bracket are formed in the limiting flat plate and the main body bracket; the sensor is arranged on one side wall of the through hole, and the sensor is configured to detect whether the blown air bag is within the sensing range of the air bag or not. According to the air bag blowing control device, it is guaranteed that the height of the air bag is not too high due to too much blowing amount in the inward folding process through the limiting flat plate, meanwhile, it is guaranteed that the blowing height of the air bag reaches the set height through detection of the sensor on the limiting flat plate, and therefore it is guaranteed that the blowing height of the air bag is stable in the inward folding process of the air bag; the inward folding stability of the air bag is improved, and the qualification rate of the air bag is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air bag detection equipment field, specifically, an air bag blowing control device. BACKGROUND

[0002] In the inward folding manufacturing process of air bag automobile safety air bag (such as side air bag installed on the side of automobile seat), the blowing state of safety air bag has very important influence on the control of air bag folding size, due to the diversity of air bag cavity and the instability of gas control, etc., in the actual blowing process, the air bag blowing state, blowing height is difficult to control and monitor well, therefore, a kind of air bag blowing control device for detecting the state of air bag in blowing process is needed.

[0003] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the utility model, and therefore can include information that does not constitute prior art known to those skilled in the art. CONTENT OF THE UTILITY MODEL

[0004] In view of the problems in the prior art, the purpose of the utility model is to provide an air bag blowing control device, which is used to control the inflation amount of air bag in the inward folding process, to avoid excessive blowing and insufficient blowing of air bag, thereby increasing the stability of air bag inward folding process and improving the qualified rate of folded air bag.

[0005] The embodiment of the utility model provides an air bag blowing control device, which comprises a motion assembly, a main body support, a limiting flat plate and a sensor.

[0006] The main body support is connected with the motion assembly, and the main body support can reciprocate in the extension direction of the main body support.

[0007] The limiting flat plate is arranged on the end face of one end of the main body support, and the limiting flat plate is configured to limit the height of the air bag after blowing.

[0008] The limiting flat plate and the main body support are provided with through holes penetrating both.

[0009] The sensor is arranged on one side wall of the through hole, and the sensor is configured to detect whether the blown air bag is within its sensing range.

[0010] According to some examples of the utility model, the air bag blowing control device further comprises a sensor support.

[0011] The sensor is arranged on one side wall of the through hole through the sensor support.

[0012] According to some examples of the present utility model, the sensor support is adjustable at the side wall position of the through hole.

[0013] According to some examples of the present utility model, the motion assembly is configured to drive the main support to move in the plane where the main support is located, or / and, in the direction perpendicular to the main support.

[0014] According to some examples of the present utility model, the sensor is a photoelectric reflection sensor.

[0015] According to some examples of the present utility model, the main support is connected with the mounting base of the motion assembly through a drag chain assembly.

[0016] The drag chain assembly comprises a slide rail, a hanger and a drag chain.

[0017] The slide rail is arranged at the end surface of the mounting base of the motion assembly towards the main support.

[0018] The hanger is slidably arranged at one side along the slide rail.

[0019] One end of the drag chain is connected with the mounting base of the motion assembly, and the other end of the drag chain is connected with the other side of the hanger and one end of the main support.

[0020] According to some examples of the present utility model, the air bag inflation control device further comprises a control unit.

[0021] The control unit is connected with the motion assembly and is configured to control the movement of the motion assembly.

[0022] According to some examples of the present utility model, the control unit is connected with the sensor and is configured to receive the electrical signal of the sensor.

[0023] The air bag inflation control device of the present utility model ensures that the air bag does not have too much inflation and too high height during the inward folding process through the limiting flat plate. BRIEF DESCRIPTION OF DRAWINGS

[0024] Other features, objects and advantages of the present utility model will become more apparent from the following detailed description of non-limiting examples with reference to the accompanying drawings.

[0025] Figure 1 and Figure 2The structural schematic diagram of different visual angle of the air bag blowing control device of one embodiment of the utility model respectively.

[0026] Reference signs

[0027] 1 motion assembly

[0028] 11 mounting seat

[0029] 121 slide rail

[0030] 122 hanger

[0031] 123 tow chain

[0032] 2 main body support

[0033] 21 through hole

[0034] 3 limiting flat plate

[0035] 4 sensor

[0036] 41 sensor support DETAILED DESCRIPTION

[0037] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations may, however, be implemented in many different forms and should not be construed as limited to the implementations set forth herein. Rather, these implementations are provided as example (s) so that this disclosure will be thorough and complete, and will fully convey the concept of example implementation (s) to those skilled in the art. Embodiments described below are examples only, and are not intended to limit the present disclosure in any way. Same reference numerals in different drawings identify same or similar elements, and explicit description of these similar elements can be omitted for clarity.

[0038] In the description of the present utility model, it needs to be understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the present utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0039] In the description of the utility model, it is necessary to explain, unless there is definite provision and limitation, the term "installation", "connection" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection or can communicate with each other;It can be directly connected, also can be indirectly connected through intermediate medium, can be the communication or the interaction relationship of two elements inside two elements.For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances.

[0040] The following disclosure provides many different embodiments or examples for implementing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the utility model. In addition, the utility model can refer to the same number and / or reference letter in different examples, and such repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0041] The structure of the air bag blowing control device of the utility model will be further described below in combination with the drawings and specific embodiments. It can be understood that each specific embodiment does not limit the protection scope of the utility model.

[0042] The utility model provides a kind of air bag blowing control device, Figure 1 And Figure 2 It is respectively the structure schematic drawing of different visual angle of the air bag blowing control device of an embodiment of the utility model, specifically, air bag blowing control device includes motion component 1, main body support 2, limit flat plate 3 and sensor 4.

[0043] The main body support 2 can be a strip-shaped flat plate, and the main body support 2 is connected with the motion assembly 1, and the limiting flat plate 3 is arranged on an end face of one end of the main body support 2 away from the motion assembly 1. Meanwhile, the main body support 2 can move back and forth in the extension direction of the main body support 2. In an embodiment, the main body support 2 can be connected with the mounting seat 11 of the motion assembly 1 through a drag chain assembly. More specifically, the drag chain assembly includes a sliding rail 121, a hanger 122 and a drag chain 123. The sliding rail 121 is arranged on an end face of the mounting seat 11 of the motion assembly 1 facing the main body support 2. One side (the side close to the mounting seat 11) of the hanger 122 is slidably arranged along the sliding rail 121. The slidable arrangement can be realized by arranging a roller or other sliding member matched with the sliding rail 121 on the side of the hanger 122. One end of the drag chain 123 is connected with the mounting seat 11 of the motion assembly 1, and the other end of the drag chain 123 is connected with the other side of the hanger 122 and one end of the main body support 2 (the end not provided with the limiting flat plate 3). The movement of the hanger 122 along the sliding rail drives the other end of the drag chain 123 and the main body support 2 to move, so as to realize the back-and-forth movement of the main body support 2 in the extension direction of the main body support 2.

[0044] The limiting flat plate 3 and the main body support 2 are provided with a through hole 21 penetrating both of them. The sensor 4 is arranged on a side wall of the through hole 21, and the sensor 4 is configured to detect whether the air-inflated air bag is within its sensing range. The limiting flat plate 3 is configured to limit the height of the air bag after being inflated. In the process of folding the air bag inward, the air bag is placed on a loading table, the limiting flat plate 3 (the main body support 2) is arranged at a certain height above the air bag, and the inflator inflates the air bag on one side of the air bag. When the height of the air bag is controlled by the limiting flat plate 3 to the lower end face of the limiting flat plate, the situation that the inflation height of the air bag is too high is avoided. When the height of the air-inflated air bag reaches the limiting flat plate 3 (the set height), the air bag is then inflated until the sensor 4 arranged in the through hole 21 detects the air bag. The inflator stops inflating (at this time, it is considered that the air bag is folded inward at the best air pressure) and starts to fold the air bag inward.

[0045] In actual use, the arrangement of the limiting flat plate 3 (the main body support 2) at a certain height above the air bag can be realized by controlling the motion assembly 1. That is, in some embodiments, the motion assembly 1 is configured to drive the main body support 2 to move in the plane in which the main body support 2 is located, or the motion assembly 1 is configured to drive the main body support 2 to move in the direction perpendicular to the main body support 2, or the motion assembly 1 can drive the main body support 2 to move in the plane in which the main body support 2 is located and in the direction perpendicular to the main body support 2 at the same time.

[0046] The height of the limiting plate 3 can be set according to the height (air pressure) required by the air bag, which is determined by the structure (size, shape, etc.) of the air bag itself. Similarly, the sensor 4 can be arranged at different positions on the side wall of the through hole 21, that is, the sensor 4 can be arranged at different vertical distances from the end surface of the limiting plate 3 away from the main support 2. Since the vertical distance of the sensor 4 from the end surface of the limiting plate 3 away from the main support 2 affects the height it detects, the position of the sensor 4 can be set according to the height at which the air bag is optimally inflated.

[0047] In order to make the air bag inflation control device of the utility model applicable to different air bags, the air bag inflation control device can further include a sensor support 41, which is adjustably arranged on a side wall of the through hole 21. When the sensor 4 is arranged in the through hole 21 through the sensor support 41, the position of the sensor 4 can be adjusted by adjusting the position of the sensor support 41, thereby adjusting the position of the air bag that can be detected. Adjusting the position of the sensor support 41 instead of the sensor 4 can reduce damage to the sensor during adjustment.

[0048] In an embodiment, the sensor 4 is a photoelectric reflective sensor 4. A photoelectric reflective sensor generally consists of a light source, a photosensitive element, a mirror or a reflective plate, and a signal processing circuit. When the light emitted by the light source of the photoelectric reflective sensor shines on the surface of the air bag, part of the light is absorbed by the air bag, and the other part of the light is reflected back to the light source. After the photosensitive element receives the reflected light, it generates a current signal proportional to the incident light. After amplification, filtering, digitization, and other processing by the signal processing circuit, the signal is finally converted into an electrical signal that can be recognized and utilized, thereby realizing the detection function of the air bag.

[0049] Further, the air bag inflation control device can further include a control unit connected with the motion assembly 1 and configured to control the movement of the motion assembly 1. The control unit can also be electrically connected with the sensor 4 and configured to receive the electrical signal of the sensor 4. It should be noted that in the technical solution of the air bag inflation control device of the utility model, each functional module and module unit, such as the control unit, can correspond to a specific hardware circuit in an integrated circuit structure, so only the improvement of the specific hardware circuit is involved, and the hardware part is not only a carrier for executing control software or computer programs, so the corresponding technical problems are solved and the corresponding technical effects are obtained without involving the application of any control software or computer programs, that is, the utility model only uses the improvement of the hardware circuit structure involved by these modules and units to solve the technical problems to be solved and obtain the corresponding technical effects, and the corresponding functions can be realized without the aid of specific control software or computer programs.

[0050] In summary, the air bag blowing control device is matched with the production equipment of the air bag inward folding process, and is used for controlling the inflation amount of the air bag in the inward folding process.

[0051] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the ordinary skilled in the art can change, modify, replace and transform the above-mentioned embodiments within the scope of the utility model.

[0052] The above content is a further detailed description of the utility model in combination with specific preferred embodiments, and the specific implementation of the utility model cannot be limited to these descriptions. For ordinary skilled in the art to which the utility model belongs, on the premise of not departing from the concept of the utility model, a number of simple deductions or replacements can be made, and all should be regarded as belonging to the protection scope of the utility model.

Claims

1. An air bag inflator control device characterized by comprising: The motion assembly, the main body support, the limiting plate and the sensor are included. The main body support is connected with the motion assembly and can move reciprocally in the extension direction of the main body support. The limiting plate is arranged on the end face of one end of the main body support and is configured to limit the height of the air bag after being inflated. The limiting plate and the main body support are provided with a through hole penetrating both of them. The sensor is arranged on one side wall of the through hole and is configured to detect whether the inflated air bag is within its sensing range.

2. The airbag inflation control apparatus according to claim 1, characterized by The air bag inflation control device further comprises a sensor support. The sensor is arranged on one side wall of the through hole through the sensor support.

3. The air bag inflation control apparatus according to claim 2, wherein The sensor support is adjustable in position on one side wall of the through hole.

4. The air bag inflation control apparatus according to claim 1, wherein The motion assembly is configured to drive the main body support to move in the plane where the main body support is located, or / and in the direction perpendicular to the main body support.

5. The air bag inflation control apparatus according to claim 1, wherein The sensor is a photoelectric reflection sensor.

6. The air bag inflation control apparatus according to claim 1, wherein The main body support is connected with the mounting base of the motion assembly through a drag chain assembly. The drag chain assembly comprises a slide rail, a hanger and a drag chain. The slide rail is arranged on the end face of the mounting base of the motion assembly towards the main body support. One side of the hanger is slidably arranged along the slide rail. One end of the drag chain is connected with the mounting base of the motion assembly, and the other end of the drag chain is connected with the other side of the hanger and one end of the main body support.

7. The air bag inflation control apparatus according to claim 1, wherein The movement of the hanger along the slide rail drives the other end of the drag chain and the main body support to move. The air bag inflation control device further comprises a control unit.

8. The air bag inflation control apparatus according to claim 7, wherein The control unit is connected with the motion assembly and is configured to control the movement of the motion assembly. The control unit is connected with the sensor and is configured to receive the electrical signal of the sensor.

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