Limiting protection device used during adjustment of automobile seat

Abstract

The utility model discloses a limiting protection device for adjusting an automobile seat. The limiting protection device comprises a triggering part, the trigger part comprises a first trigger part and a second trigger part, the first trigger part is assembled on the back of a main driver seat, and the second trigger part is assembled on the back of a co-driver seat; an execution section; the execution part comprises a first execution part and a second execution part, and the first execution part and the second execution part are both embedded in a vehicle-mounted system of an automobile. The beneficial effects of the utility model are that according to the technical scheme, the pressure change can be automatically sensed when the main driver seat and the co-driver seat are adjusted, and the driving circuit of the motor can be automatically shielded when the back pressure of the main driver seat and the co-driver seat is increased, so that the work of the motor is stopped; according to the technical scheme, the automobile seat cushion is low in manufacturing cost and can be widely applied.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a limit protection device for adjusting an automobile seat. Background Technique

[0002] At present, in new models of household cars, especially new energy vehicles, the driver's seat and the front passenger seat generally have the function of electrically adjusting the seat. For such an electric adjustment device, the up and down, front and back of the seat and the front and back of the backrest can be adjusted by gently toggling the switch. However, people usually adjust the seat while sitting on it. Therefore, the power of this adjustment switch is very large and it can still be freely adjusted when carrying one person. But this also means that when the seat is adjusted backward, if there is an obstacle behind, especially an item placed between the front and rear seats, the powerful power of the seat adjustment device can easily damage these items. In some vehicle models, an automatic welcome function is also added. When the door is opened, the seat will automatically move backward, and the driver is more likely to ignore the items or even passengers behind the backrest, resulting in damage to the items or injury to people. Therefore, it is necessary to develop a limit protection device for adjusting an automobile seat that can automatically stop when encountering an obstacle. After searching, no technical solution identical to the utility model has been found. Content of the Utility Model

[0003] The main technical problem to be solved by the utility model is to provide a limit protection device for adjusting an automobile seat that can automatically stop when encountering an obstacle, and solve one or more of the above-mentioned prior art problems.

[0004] To solve the above technical problem, a technical solution adopted by the utility model is: a limit protection device for adjusting an automobile seat, and its innovation lies in: including

[0005] A triggering part; the triggering part includes a first triggering part and a second triggering part. The first triggering part is assembled on the back of the driver's seat, and the second triggering part is assembled on the back of the front passenger seat;

[0006] An execution part; the execution part includes a first execution part and a second execution part, and both the first execution part and the second execution part are embedded in the vehicle-mounted system of the automobile.

[0007] In some embodiments, the first triggering part includes a first contoured airbag assembled on the back of the driver's seat and a first pressure sensing device built in the first contoured airbag.

[0008] In some embodiments, the first pressure sensing device includes a first pressure sensor and a first signal transmitter, and the first signal transmitter is electrically connected to the vehicle-mounted system of the automobile.

[0009] In some embodiments, the second triggering portion includes a second profiling airbag assembled on the back of the driver's seat and a second pressure sensing device built into the second profiling airbag.

[0010] In some embodiments, the second pressure sensing device includes a second pressure sensor and a second signal transmitter, and the second signal transmitter is electrically connected to the vehicle-mounted system of the vehicle.

[0011] In some embodiments, the first execution portion includes a first signal receiver and a first shielding circuit, and the first shielding circuit is connected in parallel with the driving circuit for driving the motor under the driver's seat, and the first shielding circuit is electrically connected to the first signal receiver.

[0012] In some embodiments, the second execution portion includes a second signal receiver and a second shielding circuit, and the second shielding circuit is connected in parallel with the driving circuit for driving the motor under the driver's seat, and the second shielding circuit is electrically connected to the second signal receiver.

[0013] The beneficial effects of the present utility model are as follows: In this technical solution, when adjusting the driver's seat and the co-driver's seat, it can automatically sense the pressure change. When the back pressure of the driver's seat and the co-driver's seat becomes larger, it will automatically shield the driving circuit of the motor, thereby stopping the motor from working and avoiding the people or items on the rear seats from being squeezed. This technical solution has a low cost and can be widely applied. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings, where:

[0015] Figure 1 is a working system block diagram of a limit protection device for adjusting an automobile seat according to the present utility model.

[0016] Figure 2 is an installation schematic diagram of a first profiling airbag and a second profiling airbag of a limit protection device for adjusting an automobile seat according to the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model. Obviously, the described embodiments are only some of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0018] As Figure 1 and Figure 2 shown, the embodiment of the present utility model includes:

[0019] A limit protection device for adjusting an automobile seat, including

[0020] A trigger part; the trigger part includes a first trigger part and a second trigger part, the first trigger part is assembled on the back of the driver's seat, and the second trigger part is assembled on the back of the co-driver's seat;

[0021] An execution part; the execution part includes a first execution part and a second execution part, and both the first execution part and the second execution part are embedded in the vehicle-mounted system of the automobile.

[0022] In this embodiment, the first trigger part includes a first contoured airbag assembled on the back of the driver's seat and a first pressure sensing device 110 built in the first contoured airbag.

[0023] In this embodiment, the first pressure sensing device 110 includes a first pressure sensor and a first signal transmitter, and the first signal transmitter is electrically connected to the vehicle-mounted system of the automobile.

[0024] In this embodiment, the second trigger part includes a second contoured airbag assembled on the back of the co-driver's seat and a second pressure sensing device 120 built in the second contoured airbag.

[0025] In this embodiment, the second pressure sensing device 120 includes a second pressure sensor and a second signal transmitter, and the second signal transmitter is electrically connected to the vehicle-mounted system of the automobile.

[0026] In this embodiment, the first execution part includes a first signal receiver and a first shielding circuit 210, the first shielding circuit 210 is connected in parallel with the drive circuit for driving the motor under the driver's seat, and the first shielding circuit 210 is electrically connected to the first signal receiver.

[0027] In this embodiment, the second execution part includes a second signal receiver and a second shielding circuit 220, the second shielding circuit 220 is connected in parallel with the drive circuit for driving the motor under the co-driver's seat, and the second shielding circuit 220 is electrically connected to the second signal receiver.

[0028] The beneficial effect of the present utility model is that: this technical solution can automatically sense the pressure change when adjusting the driver's seat and the co-driver's seat. When the back pressure of the driver's seat and the co-driver's seat becomes larger, it will automatically shield the drive circuit of the motor, thereby stopping the motor from working and avoiding the people or objects on the back row from being squeezed. This technical solution has a low cost and can be widely applied.

[0029] Example 1

[0030] A pressure sensing device of a limit protection device during adjustment of an automotive seat is installed behind the seat backrest, covering the entire back surface. When a pressure signal at any point on the back surface is detected to be too large, a signal is immediately sent to a shielding circuit. When the shielding circuit receives the signal from the pressure sensor, it will immediately shield the seat motor to stop the motor from running. If the vehicle is in the starting state, an alarm can also be issued.

[0031] Example 2

[0032] Preferably, for the pressure sensing device of the limit protection device during adjustment of the automotive seat, a pressure sensor is not used in the pressure sensing device, otherwise the cost is too high and it is impossible to effectively monitor the pressure on the entire seat back surface. Instead, a thin-film type airbag is adopted. The shape of the airbag is the same as that of the seat back, and the installation method is to stick it entirely. Dense conductive metal wires or graphite are arranged on both surfaces of the airbag. Under normal conditions, there is no electricity on the airbag. When the seat adjustment switch is activated, a weak voltage is applied to both surfaces of the airbag. When an obstacle is encountered, a certain point on the seat back surface receives too much pressure, which will cause the two surfaces of the airbag to contact and generate an electric current signal. The pressure threshold for generating the signal is determined by the air pressure in the airbag. This pressure is not very large, but it is not easy to be accidentally triggered. This airbag type pressure sensing device has other advantages, such as being easy to install and being able to blend in with the soft decoration inside the vehicle.

[0033] After the execution part receives the pressure signal, it immediately stops the motor. When the pressure signal disappears, the shielding circuit of the execution part stops working and the motor resumes power supply, enabling the seat to continue to be adjusted. In addition, when the operator determines that the seat is to continue to be adjusted backward against an obstacle, the shielding circuit can also be manually turned off.

[0034] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A limit protection device for a vehicle seat during adjustment, characterized in that: including a triggering part; the triggering part includes a first triggering portion and a second triggering portion, the first triggering portion is assembled on the back of the driver's seat, and the second triggering portion is assembled on the back of the passenger seat; an execution part; the execution part includes a first execution portion and a second execution portion, and both the first execution portion and the second execution portion are embedded in the vehicle-mounted system of the vehicle.

2. The limit protection device for adjusting an automotive seat according to claim 1, characterized in that: The first triggering portion includes a first contoured airbag assembled on the back of the driver's seat and a first pressure sensing device (110) built into the first contoured airbag.

3. The limit protection device during the adjustment of an automotive seat according to claim 2, characterized in that: The first pressure sensing device (110) includes a first pressure sensor and a first signal transmitter, and the first signal transmitter is electrically connected to the vehicle-mounted system of the vehicle.

4. A limit protection device for adjusting an automotive seat according to claim 1, characterized in that: The second triggering portion includes a second contoured airbag assembled on the back of the passenger seat and a second pressure sensing device (120) built into the second contoured airbag.

5. The position-limiting protection device during adjustment of an automotive seat according to claim 4, characterized in that: The second pressure sensing device (120) includes a second pressure sensor and a second signal transmitter, and the second signal transmitter is electrically connected to the vehicle-mounted system of the vehicle. (There is a typo in the original Chinese, it should be "electrically connected" instead of "electrically motor") 6. The limit protection device during the adjustment of an automotive seat according to claim 1, wherein: The first execution portion includes a first signal receiver and a first shielding circuit (210), the first shielding circuit (210) is connected in parallel with a driving circuit for driving a motor under the driver's seat, and the first shielding circuit (210) is electrically connected to the first signal receiver.

7. The limit protection device for adjusting an automobile seat according to claim 1, characterized in that: The second execution portion includes a second signal receiver and a second shielding circuit (220), the second shielding circuit (220) is connected in parallel with a driving circuit for driving a motor under the passenger seat, and the second shielding circuit (220) is electrically connected to the second signal receiver.

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