Anti-pinch induction strip assembly of automobile front cover

Abstract

The utility model discloses an automobile front cover anti-pinch induction strip assembly, and belongs to the technical field of automobile safety devices.The automobile front cover anti-pinch induction strip assembly comprises a base, a fixing cover is fixedly connected to the top of the base, an upper air cushion is fixedly connected to the top of the fixing cover, and a telescopic air bag is fixedly connected to the middle of the top of the base; the inner side of the telescopic air bag is fixedly connected with a guide device, and the top of the telescopic air bag is fixedly connected with a conductive base. By arranging the guide device, the telescopic air bag and the upper air cushion, the triggering sensitivity of the anti-pinch function can be improved, when the anti-pinch induction strip is pressed and the conductive strip is close to the conductive seat, air in the upper air cushion can enter the wave-shaped barrel through the through pipe, the air pressure in the wave-shaped barrel is increased, and the anti-pinch function is achieved. And the upper sealing plate can be driven to drive the conductive seat to move upwards, so that the conductive seat is close to the active conductive strip, the time consumed by contact between the conductive strip and the conductive seat can be shortened, and more sensitive anti-pinch response is ensured.

Description

Technical Field

[0001] This application relates to the field of automotive safety device technology, and more particularly to an anti-pinch sensor strip assembly for a car hood. Background Technology

[0002] With the development of technology, many vehicles are equipped with anti-pinch functions. The realization of this function relies on anti-pinch sensor strips installed on the vehicle doors and windows. At the same time, some cars are equipped with automatic hood opening functions, which are mainly used in high-end models or new smart cars. In order to prevent foreign objects from being easily pinched when the hood is closed, the hood is usually also equipped with an anti-pinch sensor strip assembly.

[0003] However, existing anti-pinch sensor strip assemblies for car hoods have the following drawbacks: For example, existing anti-pinch sensor strip assemblies for car hoods are usually composed of a conductive strip, a conductive base, and an insulating layer. The principle is that when the insulating layer is squeezed, the contact between the conductive strip and the conductive base triggers a signal to achieve the anti-pinch function. However, the contact path between the conductive strip and the conductive base is relatively long, and the anti-pinch sensor strip assembly needs to be subjected to greater pressure to be triggered, resulting in a slow anti-pinch response speed. Summary of the Invention

[0004] The purpose of this application is to provide an anti-pinch sensor strip assembly for a car hood with fast anti-pinch response.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: an anti-pinch sensor strip assembly for a car hood, comprising a base, a fixed cover fixedly connected to the top of the base, an upper air cushion fixedly connected to the top of the fixed cover, a telescopic airbag fixedly connected to the middle of the top of the base, a guide device fixedly connected to the inner side of the telescopic airbag, a conductive seat fixedly connected to the top of the telescopic airbag, the telescopic airbag including a lower sealing plate fixedly connected to the middle of the top of the base, a corrugated cylinder fixedly connected to the top of the lower sealing plate, an upper sealing plate fixedly connected to the top of the corrugated cylinder, and a through pipe fixedly connected inside the upper sealing plate.

[0006] As a preferred embodiment, the base includes a base plate, the interior of which is provided with fixing holes.

[0007] As another preferred embodiment, the guiding device includes a fixed cylinder fixedly connected to the top of the lower sealing plate and a connecting rod at the bottom of the upper sealing plate. A movable block is movably connected inside the fixed cylinder. The movable block is fixedly connected to the connecting rod, and a spring is fixedly connected between the fixed cylinder and the movable block.

[0008] More preferably, the conductive base includes a base body fixedly connected to the top of the upper sealing plate, and the top of the base body is provided with a pressure groove.

[0009] Further preferably, the fixed cover includes a cover body fixedly connected to the top of the base, the top of the cover body is provided with a through hole, the lower part of the cover body is fixedly connected with a conductive strip, and both ends of the cover body are fixedly connected with sealing blocks.

[0010] Further preferably, the upper air cushion includes a pad body fixedly connected to the top of the fixed cover, and an upper air cavity is provided between the pad body and the fixed cover.

[0011] Compared with the prior art, the beneficial effects of this application are as follows:

[0012] This invention, by incorporating a guide device, a telescopic airbag, and an upper air cushion, improves the sensitivity of the anti-pinch function triggering. When the upper air cushion is compressed, it indents towards the side closer to the fixed cover. Simultaneously, under pressure, the fixed cover indents towards the side closer to the conductive seat, thereby moving the conductive strip closer to the conductive seat. Simultaneously, when the upper air cushion is compressed, the air inside enters the corrugated cylinder through the through-tube, increasing the air pressure within the corrugated cylinder. Under this air pressure, the corrugated cylinder moves the upper sealing plate, causing the conductive seat to move upwards. Consequently, when the anti-pinch sensing strip is compressed and the conductive strip approaches the conductive seat, the conductive seat also actively moves towards the conductive strip. This shortens the contact time between the conductive strip and the conductive seat and allows the anti-pinch function to be triggered even under lower pressure, ensuring a more sensitive anti-pinch response. Attached Figure Description

[0013] Figure 1 This is a cross-sectional structural diagram of the anti-pinch sensor strip assembly on the front hood of the car.

[0014] Figure 2 This is a schematic diagram of the overall structure of the anti-pinch sensor strip assembly on the front hood of the car.

[0015] Figure 3 This is a schematic cross-sectional view of the guide device of the anti-pinch sensor strip assembly on the front of the car hood.

[0016] Figure 4 This is a schematic diagram of the cross-sectional structure of the telescopic airbag of the anti-pinch sensor strip assembly on the front of the car.

[0017] Figure 5 This is a schematic cross-sectional view of the fixing cover of the anti-pinch sensor strip assembly on the front of the car.

[0018] In the diagram: 1. Base; 101. Base plate; 102. Fixing hole; 2. Guide device; 201. Fixing cylinder; 202. Connecting rod; 203. Spring; 204. Moving block; 3. Telescopic airbag; 301. Lower sealing plate; 302. Waveform cylinder; 303. Upper sealing plate; 304. Through pipe; 4. Conductive seat; 401. Seat body; 402. Pressure groove; 5. Fixing cover; 501. Cover body; 502. Through hole; 503. Conductive strip; 504. Sealing block; 6. Upper air cushion; 601. Cushion body; 602. Upper air chamber. Detailed Implementation

[0019] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0020] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0021] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0022] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0023] like Figure 1-5The illustrated car hood anti-pinch sensor strip assembly includes a base 1, a fixed cover 5 fixedly connected to the top of the base 1, an upper air cushion 6 fixedly connected to the top of the fixed cover 5, a telescopic airbag 3 fixedly connected to the middle of the top of the base 1, a guide device 2 fixedly connected to the inner side of the telescopic airbag 3, and a conductive seat 4 fixedly connected to the top of the telescopic airbag 3. The telescopic airbag 3 includes a lower sealing plate 301 fixedly connected to the middle of the top of the base 1, a corrugated cylinder 302 fixedly connected to the top of the lower sealing plate 301, an upper sealing plate 303 fixedly connected to the top of the corrugated cylinder 302, gas filling the space between the lower sealing plate 301, the upper sealing plate 303 and the corrugated cylinder 302, and a through pipe 304 fixedly connected inside the upper sealing plate 303. The lower end of the through pipe 304 communicates with the interior of the corrugated cylinder 302, and the upper end communicates with the upper air cushion 6. When the upper air cushion 6 is compressed, the cushion body 601 will indent towards the side closer to the fixed cover 5. At the same time, under the pressure, the fixed cover 5 will indent towards the side closer to the conductive seat 4, thereby driving the conductive strip 503 closer to the conductive seat 4. Simultaneously, when the upper air cushion 6 is compressed, the air inside will enter the wave-shaped cylinder 302 through the through pipe 304, causing the air pressure in the wave-shaped cylinder 302 to increase. Under the action of air pressure, the wave-shaped cylinder 302 can drive the upper sealing plate 303 to move the conductive seat 4 upward. As a result, when the anti-pinch sensing strip is compressed and the conductive strip 503 approaches the conductive seat 4, the conductive seat 4 will also actively move towards the conductive strip 503. This can shorten the time it takes for the conductive strip 503 and the conductive seat 4 to come into contact, and can still trigger the anti-pinch function under relatively small pressure, ensuring a more sensitive anti-pinch response.

[0024] Furthermore, the base 1 includes a base plate 101, and the base plate 101 has a fixing hole 102 inside, through which the base plate 101 can be fixed to the edge below the front cover.

[0025] Furthermore, the guide device 2 includes a fixed cylinder 201 fixedly connected to the top of the lower sealing plate 301 and a connecting rod 202 at the lower part of the upper sealing plate 303. A movable block 204 is movably connected inside the fixed cylinder 201. The movable block 204 is fixedly connected to the connecting rod 202. The movable block 204 and the connecting rod 202 can move up and down inside the fixed cylinder 201. A spring 203 is fixedly connected between the fixed cylinder 201 and the movable block 204. When the upper air cushion 6 is squeezed, causing the gas in the upper air cushion 6 to enter the corrugated cylinder 302 through the pipe 304, the corrugated cylinder 302 can overcome the elastic force of the spring 203 and smoothly drive the upper sealing plate 303 to rise under the action of air pressure. After the pressure is removed, the spring 203... Under the action of 03, the moving block 204 can drive the connecting rod 202 to descend, which in turn drives the upper sealing plate 303 to descend. The descent of the upper sealing plate 303 can squeeze the corrugated cylinder 302. Through the squeezing, the air in the corrugated cylinder 302 can flow back to the upper air cushion 6 through the through pipe 304, so that the upper air cushion 6 can quickly return to its original position after the air enters, which is convenient to trigger the anti-pinch function again. Moreover, the lifting and lowering of the connecting rod 202 and the moving block 204 can guide the lifting and lowering of the upper sealing plate 303, so that the upper sealing plate 303 will not be tilted during lifting and lowering, thus ensuring the stability of the conductive seat 4 and allowing the conductive strip 503 to be smoothly pressed into the pressure groove 402.

[0026] Furthermore, the conductive base 4 includes a base body 401 fixedly connected to the top of the upper closed plate 303. The top of the base body 401 is provided with a pressure groove 402, which is adapted to the lower part of the conductive strip 503, so that the conductive strip 503 can be completely fitted with the base body 401 after being pressed into the pressure groove 402, thus ensuring the stability of the circuit connection.

[0027] Furthermore, the fixed cover 5 includes a cover body 501 fixedly connected to the top of the base 1. The top of the cover body 501 is provided with a through hole 502 for the passage of the through pipe 304, so that the top of the through pipe 304 can communicate with the upper air cushion 6. A conductive strip 503 is fixedly connected to the lower part of the cover body 501. Both ends of the cover body 501 are fixedly connected with sealing blocks 504, which are used to seal the cover body 501 and prevent foreign objects from entering the cover body 501.

[0028] Furthermore, the upper air cushion 6 includes a cushion body 601 fixedly connected to the top of the fixed cover 5. An upper air chamber 602 is provided between the cushion body 601 and the fixed cover 5. The upper air chamber 602 is filled with gas. The cushion body 601, the cover body 501 and the wave cylinder 302 are made of silicone material, which is relatively soft. The through pipe 304 and the base plate 101 are made of rubber material.

[0029] Working principle: During use, the anti-pinch sensor assembly is fixed to the lower edge of the car hood, and the conductive base 4 and conductive strip 503 are connected to the electrical signal detection terminal of the vehicle computer. When the upper air cushion 6 is compressed, the cushion body 601 will indent towards the side closer to the fixing cover 5. At the same time, under the pressure, the fixing cover 5 will indent towards the side closer to the conductive base 4, thereby moving the conductive strip 503 closer to the conductive base 4. Simultaneously, when the upper air cushion 6 is compressed, the air inside will enter the wave cylinder 302 through the through pipe 304, causing the air pressure in the wave cylinder 302 to increase. Under the action of air pressure, the air cushion 6 in the upper air cushion 6 will indent towards the side closer to the fixing cover 503. The wave-shaped cylinder 302 can drive the upper sealing plate 303 to move the conductive seat 4 upward, thereby causing the anti-pinch sensing strip to be pressed. When the conductive strip 503 approaches the conductive seat 4, the conductive seat 4 will also actively move towards the conductive strip 503. This can shorten the time it takes for the conductive strip 503 and the conductive seat 4 to come into contact, and can still trigger the anti-pinch function under a small pressure, ensuring that the anti-pinch response is more sensitive. When the conductive strip 503 is pressed into the pressure groove 402 and contacts the seat 401, the anti-pinch circuit is connected, and the vehicle computer will control the front cover to stop closing or open the front cover, thereby realizing the anti-pinch function.

[0030] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A car hood anti-pinch sensor strip assembly, comprising a base (1), characterized in that: A fixed cover (5) is fixedly connected to the top of the base (1), an upper air cushion (6) is fixedly connected to the top of the fixed cover (5), a telescopic airbag (3) is fixedly connected to the middle of the top of the base (1), a guide device (2) is fixedly connected to the inner side of the telescopic airbag (3), a conductive seat (4) is fixedly connected to the top of the telescopic airbag (3), the telescopic airbag (3) includes a lower sealing plate (301) fixedly connected to the middle of the top of the base (1), a wave-shaped cylinder (302) is fixedly connected to the top of the lower sealing plate (301), an upper sealing plate (303) is fixedly connected to the top of the wave-shaped cylinder (302), and a through pipe (304) is fixedly connected inside the upper sealing plate (303).

2. The anti-pinch sensor strip assembly for a car hood as described in claim 1, characterized in that: The base (1) includes a base plate (101), and the base plate (101) has a fixing hole (102) inside.

3. The anti-pinch sensor strip assembly for a car hood as described in claim 1, characterized in that: The guiding device (2) includes a fixed cylinder (201) fixedly connected to the top of the lower sealing plate (301) and a connecting rod (202) at the bottom of the upper sealing plate (303). A movable block (204) is movably connected inside the fixed cylinder (201). The movable block (204) is fixedly connected to the connecting rod (202). A spring (203) is fixedly connected between the fixed cylinder (201) and the movable block (204).

4. The anti-pinch sensor strip assembly for a car hood as described in claim 1, characterized in that: The conductive base (4) includes a base body (401) fixedly connected to the top of the upper sealing plate (303), and the top of the base body (401) is provided with a pressure groove (402).

5. The anti-pinch sensor strip assembly for a car hood as described in claim 1, characterized in that: The fixed cover (5) includes a cover body (501) fixedly connected to the top of the base (1). The top of the cover body (501) is provided with a through hole (502). A conductive strip (503) is fixedly connected to the lower part of the cover body (501). A sealing block (504) is fixedly connected to both ends of the cover body (501).

6. The anti-pinch sensor strip assembly for a car hood as described in claim 1, characterized in that: The upper air cushion (6) includes a cushion body (601) fixedly connected to the top of the fixed cover (5), and an upper air chamber (602) is provided between the cushion body (601) and the fixed cover (5).

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