Impact detection device

Abstract

The utility model provides an impact detection device. A pressure pipe of the impact detection device can effectively detect impact without being compressed through a bumper structure. The impact detection device includes: a plurality of cylindrical members arranged along a straight line or a curved line, each of the plurality of cylindrical members having an internal space; the pressure pipe is arranged in the inner space and used for detecting impact, the rigidity of each of the multiple cylindrical components is larger than that of the pressure pipe, and any two adjacent cylindrical components of the multiple cylindrical components can be bent relatively to enable the pressure pipe to deform.

Description

TECHNICAL FIELD

[0001] The utility model relates to a shock detection device, especially a shock detection device suitable for a vehicle. BACKGROUND

[0002] In recent years, efforts to provide access to sustainable transport systems that also take into account people in a weak position such as elderly people or children among road users are becoming active. In order to achieve the purpose, research and development are devoted to further improving the safety or convenience of traffic through development related to collision safety performance. In the development related to collision safety performance, a shock detection device of a vehicle detects a shock by compression of a pressure tube by a bumper structure (such as a bumper beam and / or a bumper buffer material) to determine whether the vehicle has collided with a pedestrian. In order to enable the bumper structure to effectively compress the pressure tube, the shape design of the bumper structure is limited, which can conflict with the collision safety design of the bumper structure. Therefore, it is necessary to improve the shock detection device to overcome the above problems. SUMMARY

[0003] The utility model relates to a shock detection device, which can effectively detect a shock without compressing a pressure tube by a bumper structure.

[0004] According to an embodiment of the utility model, the shock detection device comprises: a plurality of cylindrical members arranged in a straight line or a curve, each of the plurality of cylindrical members having an internal space; a deformable pressure tube disposed in the internal space and used to detect a shock, the rigidity of each of the plurality of cylindrical members being greater than the rigidity of the pressure tube, and any two adjacent ones of the plurality of cylindrical members being relatively bendable to deform the pressure tube.

[0005] In an embodiment according to the utility model, each of the plurality of cylindrical members has a plurality of protrusions on an adjacent portion, and the plurality of protrusions on the adjacent portion engage the plurality of protrusions on another adjacent portion.

[0006] In an embodiment according to the utility model, when viewed from the front of the vehicle, the plurality of cylindrical members are disposed above the bumper beam of the vehicle.

[0007] Based on the above, in the shock detection device of the utility model, the pressure tube is disposed in the internal space of the plurality of cylindrical members arranged in sequence. When a shock acts on the shock detection device, the adjacent cylindrical members are relatively bent to compress the pressure tube therein, so that the pressure tube is deformed to detect the shock. Thus, the pressure tube of the shock detection device of the utility model can effectively detect a shock without being compressed by the bumper structure of the vehicle. Furthermore, the shape design of the bumper structure is less likely to be limited, and the bumper structure can have a good collision safety design. Attached Figure Description

[0008] Figure 1 This is a top view of an impact detection device according to an embodiment of the present invention;

[0009] Figure 2 yes Figure 1 A partial enlarged view of the impact testing device;

[0010] Figure 3 yes Figure 1 Side view of the impact detection device;

[0011] Figure 4 Show Figure 1 The impact detection device was subjected to an impact;

[0012] Figure 5 yes Figure 4 A partial enlarged view of the impact testing device;

[0013] Figure 6 Show Figure 1 The impact detection device is installed on the vehicle.

[0014] Explanation of icon numbers

[0015] 100: Impact detection device;

[0016] 101: Cylindrical structure;

[0017] 110: Cylindrical component;

[0018] 110a: Interior space;

[0019] 112: Adjacent parts;

[0020] 1121: Protrusion;

[0021] 120: Pressure pipe;

[0022] 30: Object;

[0023] 50: Vehicles;

[0024] 52: Bumper beam;

[0025] D1, D2, D3: Direction;

[0026] R: Region. Detailed Implementation

[0027] Reference will now be made in detail to exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same component reference numerals are used in the drawings and description to denote the same or similar parts.

[0028] Figure 1This is a top view of an impact detection device according to an embodiment of the present invention. Figure 2 yes Figure 1 A partial enlarged view of the impact detection device. Figure 3 yes Figure 1 A side view of an impact detection device, for example along... Figure 1 Observe the impact detection device from direction D1. Please refer to... Figures 1 to 3 The impact detection device 100 of this embodiment includes a plurality of cylindrical members 110 and a deformable pressure tube 120. The cylindrical members 110 are made of, for example, resin, and the plurality of cylindrical members 110 are as follows: Figure 1 The cylindrical structure 101, arranged sequentially along a straight line, extends in the direction D1. In other embodiments, the multiple cylindrical members 110 may be arranged sequentially along a curve, and this invention does not limit this. Each of the multiple cylindrical members 110 has an internal space 110a, and a pressure tube 120 for detecting impact is disposed in the internal space 110a of the cylindrical member 110. That is, the pressure tube 120 passes sequentially through the multiple cylindrical members 110. The method and principle of detecting impact by deforming the pressure tube 120 under pressure are known in the art and will not be described in detail here.

[0029] Figure 4 Show Figure 1 The impact detection device was subjected to an impact. Figure 5 yes Figure 4 A partial enlarged view of the impact detection device. In this embodiment, the stiffness of each of the plurality of cylindrical members 110 is greater than the stiffness of the pressure tube 120. When the impact detection device 100 as... Figure 4 When subjected to an impact from an object 30 (such as a pedestrian) along direction D2, any two adjacent cylindrical members 110 can bend relative to each other to at least... Figure 5 The area R shown is pressed along direction D3, causing the pressure tube 120 to deform. That is, when the impact detection device 100 is subjected to an impact, any two adjacent cylindrical members 110 may produce relative displacement and / or relative rotation, causing the cylindrical structure 101 to bend, thereby the pressure tube 120 is compressed and deformed by the cylindrical member 110 at the bend.

[0030] As described above, in the impact detection device 100 of the present embodiment, the pressure tube 120 is disposed in the inner space 110a of the plurality of cylindrical members 110 arranged in series. When an impact is applied to the impact detection device 100, the adjacent cylindrical members 110 are bent relative to each other to press the pressure tube 120 therein, and the pressure tube 120 is deformed to detect the impact. Thus, the impact detection device 100 of the present embodiment can effectively detect an impact without pressing the pressure tube 120 thereof by the bumper structure (e.g., the bumper beam and / or the bumper buffer material) of the vehicle. Further, the shape design of the bumper structure is less restricted, and the bumper structure can have a good crash safety design.

[0031] Please refer to Figure 2 and Figure 5 In detail, each cylindrical member 110 of the present embodiment has an adjacent portion 112 adjacent to another cylindrical member 110, and the adjacent portion 112 has a plurality of protrusions 1121 arranged in a tooth-like shape at intervals. The plurality of protrusions 1121 of the adjacent portion 112 of each cylindrical member 110 are engaged with the plurality of protrusions 1121 of the adjacent portion 112 of the other cylindrical member 110. Accordingly, when the impact detection device 100 is subjected to an impact to bend the cylindrical structure 101, the pressure tube 120 can be effectively pressed by the protrusions 1121 to deform the pressure tube 120, so as to improve the impact detection capability of the impact detection device 100.

[0032] Figure 6 The impact detection device shown in Figure 1 is installed in a vehicle. For simplicity of the drawing, only a partial structure of the vehicle 50 is shown, and the bumper beam 52 is schematically shown by a dashed line. Since the pressure tube 120 of the impact detection device 100 of the present embodiment can effectively detect an impact without being compressed by the bumper structure of the vehicle 50, as described above, the impact detection device 100 including the plurality of cylindrical members 110 and the pressure tube 120 can be disposed above the bumper beam 52 of the vehicle 50 when viewed from the front of the vehicle 50 (as shown in Figure 6 ). Accordingly, compared with the vehicle in which the impact detection device is disposed at the bumper beam, the vehicle 50 of the present embodiment can avoid that the impact detection device 100 misjudges that the vehicle 50 hits a pedestrian when the impact detection device 100 detects an impact of an object lower than the pedestrian, and can avoid that the impact detection device 100 is damaged by hitting an object at the height of the bumper beam 52 (e.g., a bumper of a truck or an edge of a guardrail).

[0033] In summary, in the impact detection device, the pressure pipe is arranged in the internal space of the plurality of cylindrical members arranged in sequence. When the impact is applied to the impact detection device, the adjacent cylindrical members are relatively bent to compress the pressure pipe in it, so that the pressure pipe is deformed to detect the impact. Therefore, the pressure pipe of the impact detection device of the utility model can effectively detect the impact without being compressed by the bumper structure of the vehicle. Further, the shape design of the bumper structure is less limited, and the bumper structure can have a good collision safety design.

[0034] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, but not limited to them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. An impact detection device, characterized by, Comprising: a plurality of cylindrical members arranged in a straight line or a curve, each of the plurality of cylindrical members having an internal space; a deformable pressure tube provided in the internal space and used to detect an impact, a rigidity of each of the plurality of cylindrical members being greater than a rigidity of the pressure tube, any two of the plurality of cylindrical members adjacent to each other being bendable relative to each other to deform the pressure tube.

2. The impact detecting apparatus according to claim 1, wherein an adjacent portion of each of the plurality of cylindrical members has a plurality of protrusions, the plurality of protrusions of the adjacent portion engaging the plurality of protrusions of another adjacent portion.

3. The impact detecting apparatus according to claim 1, wherein the plurality of cylindrical members are provided above a bumper beam of a vehicle when viewed from a front of the vehicle.

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