CN217532624U - Automobile seat position sensor and automobile safety protection system - Google Patents

Abstract

The application relates to an automobile seat position sensor and an automobile safety protection system, wherein the automobile seat position sensor comprises a shell and a Hall chip, a mounting groove is formed in the outer side of the shell, a PCB (printed Circuit Board) is arranged in the mounting groove, a fixing groove is formed in the bottom of the mounting groove, an annular magnet is arranged in the fixing groove, an antenna of the Hall chip is close to the annular magnet and is connected with a lower contact of the PCB, a connector is further arranged on one side of the shell, a terminal of the connector is connected with a side contact of the PCB, and the Hall chip is used for directly or indirectly detecting the distance between an automobile seat and an automobile steering wheel; the automobile safety protection system comprises an automobile seat position sensor. The application has the following expected technical effects: the distance between the automobile seat and the automobile steering wheel is detected, so that the control system of the automobile controls the bouncing force of the safety airbag according to the distance, and the secondary injury to an automobile owner is effectively reduced.

Description

Automobile seat position sensor and automobile safety protection system

Technical Field

The application relates to the technical field of automobile sensors, in particular to an automobile seat position sensor and an automobile safety protection system.

Background

The automobile seat sensor is a full name of an automobile seat position sensor, belongs to a memory seat module, and is mainly used for acquiring the specific position of a seat and transmitting information to an ECU (electronic control unit) of the memory seat, and when the ECU of the memory seat controls an actuator to restore the seat to the last memory position, the sensor judges whether the seat reaches the memory position.

At present, a position sensor used on most automobiles aims at detecting the position of a seat on a slide rail, so that when a vehicle owner drives the vehicle next time, the seat can directly arrive at a specified place, and the memory function of the seat is realized.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when a car accident occurs, the safety airbag can be bounced off, and a car owner can be injured secondarily due to the fact that the strength of bouncing off the safety airbag is too high because the seat is closer to a steering wheel.

SUMMERY OF THE UTILITY MODEL

The application provides a car seat position sensor and car safety protection system to improve following technical problem: when a car accident happens, the safety airbag can be bounced off, and a car owner can be injured secondarily due to the fact that the seat is closer to the steering wheel and the bouncing force of the safety airbag is too high.

In a first aspect, the present application provides a car seat position sensor, which adopts the following technical scheme:

the utility model provides a car seat position sensor, includes casing and hall chip, the outside of casing sets up the mounting groove, be provided with the PCB board in the mounting groove, the bottom of mounting groove is provided with the fixed slot, be provided with annular magnetite in the fixed slot, hall chip's antenna closes on annular magnetite and with the below contact of PCB board is connected, one side of casing still is provided with the connector, the terminal of connector with the side contact of PCB board is connected, hall chip is used for direct or indirect distance between detection car seat and the car steering wheel.

Through adopting above-mentioned technical scheme, the mounting groove provides better mounted position for the PCB board, the fixed slot provides better mounted position for the annular magnetite, make hall chip's feeler ability and PCB board below contact be connected, then the terminal of indirect ground and connector is connected, hall chip can detect the distance between car seat and the car steering wheel through magnetic field variation, so that the control system of car controls the dynamics size that air bag bounced off according to above-mentioned distance size, reduce the secondary injury to the car owner.

Optionally, a clamping groove is formed in the shell, a clamping block is arranged on the connecting head, and the clamping block is detachably clamped in the clamping groove.

Through adopting above-mentioned technical scheme, casing and connector carry out removable equipment, simple structure, the preparation is convenient through draw-in groove and fixture block.

Optionally, a plurality of jacks are arranged on the PCB, and the bottom of the mounting groove is provided with insertion posts inserted into the jacks.

Through adopting above-mentioned technical scheme, insert the post and insert the back in the jack, can fix the tank bottom at the mounting groove with the PCB board restriction, make it can not rock at will, the structure is more firm.

Optionally, the PCB board the annular magnetite the hall chip the terminal of connector all through epoxy seal in inside the casing.

Through adopting above-mentioned technical scheme, after epoxy pours and solidifies, can seal the fixing totally of above-mentioned spare part in the casing, structural stability is better.

In a second aspect, the present application provides an automobile safety protection system, which adopts the following technical scheme:

an automobile safety protection system comprises an automobile seat base and the automobile seat position sensor, wherein a fixed slide rail is arranged on the automobile seat base, a movable slide rail connected with the bottom of an automobile seat is connected onto the fixed slide rail in a sliding manner, the automobile seat position sensor is mounted on the movable slide rail, a metal sheet is arranged at one end, close to an automobile safety airbag, of the automobile seat base, and a Hall chip of the automobile seat position sensor is used for sensing whether the metal sheet exists at the current position or not;

the automobile seat position sensor is electrically connected to a control system of an automobile safety airbag, the automobile seat position sensor outputs different signal values when sensing or not sensing the metal sheet, and the control system of the automobile safety airbag controls the bouncing force of the automobile safety airbag according to the read signal values.

Through adopting above-mentioned technical scheme, car seat makes a round trip to slide along with moving the slide rail on deciding the slide rail, with the distance between change car seat and the car air bag, when car seat position sensor and car seat made a round trip to slide, respond to the sheetmetal through the hall chip, export a signal value when the hall chip senses the sheetmetal, do not respond to another signal value of then exporting, then control car air bag spring-out's dynamics is controlled according to the size of two signal values by car air bag's control system, thereby reduce the secondary damage to the car owner.

Optionally, the car seat position sensor is fixedly mounted on a support, and the support is fixedly mounted on the movable slide rail.

Through adopting above-mentioned technical scheme, the support provides better mounted position for car seat position sensor, makes car seat position sensor can firmly be connected with moving the slide rail through the support.

Optionally, be provided with vertically arranged's connecting plate, the intermediate lamella of horizontal arrangement and vertically arranged's mounting panel on the support, the connecting plate with move fixed connection between the slide rail, the intermediate lamella is located the connecting plate with between the mounting panel, the connecting plate is located one side top of intermediate lamella, the mounting panel is located the opposite side below of intermediate lamella, car seat position sensor is fixed in on the mounting panel.

Through adopting above-mentioned technical scheme, the relative both sides of intermediate lamella provide better mounted position for connecting plate and mounting panel, make connecting plate and mounting panel can one up, another sets up down, fixes car seat position sensor after on the mounting panel, and the rethread connecting plate is fixed it on moving the slide rail, simple structure, convenient design.

Optionally, a riveting nut is arranged on the connecting plate, and the riveting nut is connected with the movable slide rail through a screw.

By adopting the technical scheme, the connecting plate can be fixed on the movable sliding rail through the riveting nut and the screw, and is simple and firm in structure and convenient to install.

Optionally, the connecting plate is further provided with a positioning hole, and the movable slide rail is further provided with a positioning column matched with the positioning hole.

Through adopting above-mentioned technical scheme, after the locating hole on the connecting plate inserted the reference column, had the effect of pre-installation to the connecting plate, it is more convenient when assembling riveting nut and screw in the later stage.

In summary, the present application includes at least one of the following beneficial technical effects:

after the PCB, the annular magnet, the Hall chip and the connector are indirectly connected, the Hall chip can detect the distance between the automobile seat and the automobile steering wheel through the change of a magnetic field, so that a control system of an automobile can control the opening force of the safety airbag according to the distance, and secondary damage to an automobile owner is reduced;

2. automobile seat makes a round trip to slide on deciding the slide rail along with moving the slide rail to change the distance between automobile seat and the car air bag, when automobile seat position sensor follows automobile seat and makes a round trip to slide, respond to the sheetmetal through hall chip, export a signal value when hall chip senses the sheetmetal, do not respond to another signal value of then exporting, then control automobile air bag spring the dynamics of opening according to the size of two signal values by automobile air bag's control system, thereby reduce the secondary injury to the car owner.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a vehicle seat position sensor in an embodiment of the present application.

Fig. 2 is a schematic structural diagram of an automobile safety protection system in an embodiment of the present application.

Fig. 3 is a schematic view of the mounting relationship between the bracket and the car seat position sensor in the embodiment of the present application.

Description of reference numerals:

101. a car seat base; 102. fixing a slide rail; 103. a movable slide rail; 104. a vehicle seat position sensor; 41. a housing; 411. mounting grooves; 412. fixing grooves; 413. a card slot; 414. inserting a column; 42. a PCB board; 421. a jack; 43. a ring magnet; 44. a Hall chip; 45. a connector; 451. a clamping block; 105. A metal sheet; 106. a support; 61. a connecting plate; 62. a middle plate; 63. mounting a plate; 611. riveting a nut; 612. a screw; 613. and (7) positioning the holes.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses car seat position sensor. Referring to fig. 1, the car seat position sensor is an inductive sensor and includes a housing 41 and a hall chip 44, an installation groove 411 is disposed on an outer side of the housing 41, a PCB 42 is disposed in the installation groove 411, a fixing groove 412 is disposed at a bottom of the installation groove 411, a ring magnet 43 is disposed in the fixing groove 412, an antenna of the hall chip 44 is adjacent to the ring magnet 43 and connected to a lower contact of the PCB 42, a connector 45 is further disposed on one side of the housing 41, a terminal of the connector 45 is connected to a side contact of the PCB 42, and the hall chip 44 is used for directly or indirectly detecting a distance between the car seat and a car steering wheel.

The housing 41 is provided with a locking groove 413, the connecting head 45 is provided with a locking block 451, and the locking block 451 is detachably locked in the locking groove 413. The shell 41 and the connector 45 are detachably assembled through the clamping groove 413 and the clamping block 451, and the structure is simple and the manufacture is convenient.

The PCB board 42 is provided with a plurality of insertion holes 421, and the bottom of the mounting groove 411 is provided with insertion posts 414 inserted into the insertion holes 421. After the inserting column 414 is inserted into the inserting hole 421, the PCB 42 can be limited and fixed at the bottom of the installing groove 411, so that the PCB cannot shake freely, and the structure is more stable.

The terminals of the PCB 42, the ring magnet 43, the hall chip 44, and the connector 45 are all sealed inside the housing 41 by epoxy resin. After the epoxy resin is poured and solidified, the parts can be completely sealed and fixed in the shell 41, and the structural stability is better.

The implementation principle of the automobile seat position sensor in the embodiment of the application is as follows: the mounting groove 411 provides a better mounting position for the PCB 42, the fixing groove 412 provides a better mounting position for the ring magnet 43, the feeler of the Hall chip 44 can be connected with the contact below the PCB 42, and then indirectly connected with the terminal of the connector 45, the Hall chip 44 can detect the distance between the automobile seat and the automobile steering wheel through the magnetic field change, so that the control system of the automobile can control the bouncing force of the automobile safety airbag according to the distance, and the secondary injury to the automobile owner is reduced.

The embodiment of the application also discloses an automobile safety protection system, refer to fig. 2 and fig. 3, automobile safety protection system includes automobile seat base 101 and as above automobile seat position sensor 104, be provided with on the automobile seat base 101 and decide slide rail 102, it has the sliding rail 103 that is connected with the automobile seat bottom to decide slide rail 102, automobile seat position sensor 104 installs on sliding rail 103, the one end that automobile seat base 101 is close to car air bag is provided with sheetmetal 105, the hall chip 44 of automobile seat position sensor 104 is used for responding to the current position and whether has sheetmetal 105.

The automobile seat position sensor 104 is electrically connected to the control system of the automobile airbag, when the metal sheet 105 is sensed or not sensed, the automobile seat position sensor 104 outputs different signal values, and the control system of the automobile airbag controls the bouncing force of the automobile airbag according to the read signal values.

The car seat position sensor 104 is fixedly mounted on a bracket 106, and the bracket 106 is fixedly mounted on the movable slide rail 103. The bracket 106 provides a better mounting position for the car seat position sensor 104, so that the car seat position sensor 104 can be firmly connected with the movable sliding rail 103 through the bracket 106.

The support 106 is provided with a connecting plate 61 arranged vertically, a middle plate 62 arranged horizontally and a mounting plate 63 arranged vertically, the connecting plate 61 and the movable slide rail 103 are fixedly connected, the middle plate 62 is arranged between the connecting plate 61 and the mounting plate 63, the connecting plate 61 is positioned above one side of the middle plate 62, the mounting plate 63 is positioned below the other side of the middle plate 62, and the automobile seat position sensor 104 is fixed on the mounting plate 63. The relative both sides of intermediate lamella 62 provide better mounted position for connecting plate 61 and mounting panel 63, make connecting plate 61 and mounting panel 63 can one up, another sets up downwards, fixes car seat position sensor 104 after on mounting panel 63, and the rethread connecting plate 61 is fixed it on moving slide 103, simple structure, convenient design.

The connecting plate 61 is provided with a riveting nut 611, and the riveting nut 611 is connected with the movable slide rail 103 through a screw 612. The connecting plate 61 can be fixed on the movable sliding rail 103 through the riveting nut 611 and the screw 612, and has the advantages of simple and firm structure and convenience in installation.

The connecting plate 61 is further provided with a positioning hole 613, and the movable slide rail 103 is further provided with a positioning column matched with the positioning hole 613. After the positioning hole 613 on the connecting plate 61 is inserted into the positioning column, the connecting plate 61 is pre-installed, and the riveting nut 611 and the screw 612 are more conveniently assembled at a later stage.

The implementation principle of the automobile safety protection system in the embodiment of the application is as follows: the car seat slides back and forth on deciding slide rail 102 along with moving slide rail 103 to change the distance between car seat and the car air bag, car seat position sensor 104 follows the car seat when making a round trip to slide, respond to sheetmetal 105 through hall chip 44, export a signal value when hall chip 44 senses sheetmetal 105, do not respond to another signal value of then export, then control the dynamics that car air bag bounced off by car air bag's control system according to the size of two signal values, thereby reduce the secondary injury to the car owner.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.

Claims (9)

1. A vehicle seat position sensor, characterized by: including casing (41) and hall chip (44), the outside of casing (41) sets up mounting groove (411), be provided with PCB board (42) in mounting groove (411), the bottom of mounting groove (411) is provided with fixed slot (412), be provided with annular magnetite (43) in fixed slot (412), the antenna of hall chip (44) closes on annular magnetite (43) and with the below contact of PCB board (42) is connected, one side of casing (41) still is provided with connector (45), the terminal of connector (45) with the side contact of PCB board (42) is connected, hall chip (44) are used for directly or indirectly detecting the distance between car seat and the car steering wheel.

2. The vehicle seat position sensor according to claim 1, wherein: the shell (41) is provided with a clamping groove (413), the connector (45) is provided with a clamping block (451), and the clamping block (451) is detachably clamped in the clamping groove (413).

3. The car seat position sensor according to claim 1, wherein: the PCB board (42) is provided with a plurality of jacks (421), and the bottom of the mounting groove (411) is provided with an inserting column (414) inserted into the jack (421).

4. The vehicle seat position sensor according to claim 1, wherein: PCB board (42), annular magnetite (43), hall chip (44), the terminal of connector (45) all through epoxy seal in inside casing (41).

5. The utility model provides an automobile safety protection system which characterized in that: the automobile seat position sensor comprises an automobile seat base (101) and the automobile seat position sensor as claimed in any one of claims 1 to 4, wherein a fixed slide rail (102) is arranged on the automobile seat base (101), a movable slide rail (103) connected with the bottom of an automobile seat is connected onto the fixed slide rail (102) in a sliding manner, the automobile seat position sensor (104) is mounted on the movable slide rail (103), a metal sheet (105) is arranged at one end, close to an automobile airbag, of the automobile seat base (101), and the Hall chip (44) of the automobile seat position sensor (104) is used for sensing whether the metal sheet (105) exists at the current position;

the automobile seat position sensor (104) is electrically connected to a control system of an automobile safety airbag, the automobile seat position sensor (104) outputs different signal values when the metal sheet (105) is sensed or not sensed, and the control system of the automobile safety airbag controls the bouncing force of the automobile safety airbag according to the acquired and read signal values.

6. The vehicle safety protection system according to claim 5, wherein: the automobile seat position sensor (104) is fixedly arranged on a support (106), and the support (106) is fixedly arranged on the movable sliding rail (103).

7. The vehicle safety protection system of claim 6, wherein: be provided with vertically arranged connecting plate (61), horizontally arranged intermediate plate (62) and vertically arranged mounting panel (63) on support (106), connecting plate (61) with move fixed connection between slide rail (103), intermediate plate (62) are located connecting plate (61) with between mounting panel (63), connecting plate (61) are located one side top of intermediate plate (62), mounting panel (63) are located the opposite side below of intermediate plate (62), car seat position sensor (104) are fixed in on mounting panel (63).

8. The vehicle safety protection system according to claim 7, wherein: the connecting plate (61) is provided with a riveting nut (611), and the riveting nut (611) is connected with the movable sliding rail (103) through a screw (612).

9. The vehicle safety protection system of claim 8, wherein: the connecting plate (61) is further provided with a positioning hole (613), and the movable slide rail (103) is further provided with a positioning column matched with the positioning hole (613).

Images