CN220535472U - STPS sensor application system of automobile seat with fixed component - Google Patents

Abstract

The utility model discloses an application system of an automobile seat STPS sensor with a fixed component, which comprises the following components: the micro-switch trigger end half assembly is composed of a micro-switch sensor, a mounting bracket and a micro-switch sensor fixing plate in sequence; the micro-switch trigger end half assembly and the seat movable rail sheet metal opponent part are fixedly arranged on the seat movable rail through steel nails which sequentially penetrate through steel nail preformed holes on two sides of the micro-switch trigger end half assembly and the seat movable rail sheet metal opponent part; the signal trigger plate and the seat static rail sheet metal opponent part are fixedly arranged on the seat static rail by sequentially penetrating steel nails through steel nail preformed holes on two sides of the signal trigger plate and the seat static rail sheet metal opponent part; the micro switch trigger end half assembly is triggered or disconnected with the signal trigger plate through the relative movement of the seat movable rail and the seat static rail, so that the ECU for controlling the pop-up air bag to output or stop outputting signals is realized. The utility model has simple and stable installation and high operation reliability.

Description

STPS sensor application system of automobile seat with fixed component

Technical Field

The utility model relates to the technical field of automobile seats, in particular to an application system of an STPS sensor of an automobile seat with a fixed component.

Background

Currently, car seat position sensors (STPS sensors, seat Trigger Position Sensor) are used to determine the position of a seat along a track of a car seat. As part of a safety system triggering scheme (safety system deployment strategy) for front seat passengers, a vehicle seat STPS sensor is used as an input to a restraint control module. In general, the vehicle seat position sensors required by current safety system solutions have limited capabilities to detect only two different fore/aft regions (near and far). These vehicle seat position sensors act as switches and cannot provide higher resolution seat linear position information (seat linearposition information).

North american regulations (FMVSS 226) require staged squib of front seat airbags to achieve protection for different human bodies, staged squib, i.e. a gas generator with two stages of squibs, the first stage producing a cushioning effect on the movement of the head of a person and the second stage of squib reaching the maximum pressure. Typically, vehicle seat STPS sensors are based on Hall effect/magnetic induction/precision switching signals and the like. A switch in the vehicle seat STPS sensor when triggered indicates that the occupant is sitting too close to a safety limit region, e.g., an airbag squib region, and in this case helps optimize the timing of airbag triggering (airbag deployment). Therefore, for a common short slide rail seat, the STPS sensor can be added on the slide rail, and when the main driving and the auxiliary driving meet the emergency of triggering the STPS sensor, a signal (STPS sensor triggering signal) can be input to the ECU for judging whether the airbag needs to be exploded or not.

Disclosure of Invention

The utility model aims to solve the technical problems of providing an application system of an automobile seat STPS sensor with a fixed component, which is simple and stable to install and high in operation reliability, and aims at the requirements of north american regulations on grading and ignition of a front seat airbag, and through relative movement of a seat movable rail and a seat static rail, a micro switch trigger end half assembly is triggered with a signal trigger plate, so that when a seat slide rail is arranged at a designated position or interval in a sliding way, an upper spring plate presses and deforms to trigger a switch of the sensor, and the upper spring plate rebounds to disconnect the switch of the sensor, thereby realizing output or stop outputting signals to an ECU (electronic control unit) for controlling the sprung-open airbag. And the ECU will aggregate and analyze the various signals it collects to signal a staged flare.

In order to solve the above technical problems, the present utility model provides an application system of an STPS sensor for an automobile seat, which comprises: the micro-switch trigger end half assembly is composed of a micro-switch sensor, a mounting bracket and a micro-switch sensor fixing plate in sequence; the micro-switch trigger end half assembly and the seat movable rail sheet metal opponent part are fixedly arranged on the seat movable rail through steel nails which sequentially penetrate through steel nail preformed holes on two sides of the micro-switch trigger end half assembly and the seat movable rail sheet metal opponent part; the signal trigger plate and the seat static rail sheet metal opponent part are fixedly arranged on the seat static rail by penetrating through respective steel nail preformed holes of the steel nails in sequence; the micro switch trigger end half assembly is triggered or disconnected with the signal trigger plate through the relative movement of the seat movable rail and the seat static rail, so that the ECU for controlling the pop-up air bag to output or stop outputting signals is realized.

In particular, the steel nail is selected from self-tapping screws or rivets.

Specifically, the micro-switch sensor is composed of a sensor positioned at the upper part and a sensor switch body positioned at the lower part, wherein the sensor and the buckle are connected through a wire positioned in the middle.

Specifically, the projections of the forward surface and the reverse surface of the mounting bracket are T-shaped, and the left end and the right end of the forward surface are respectively provided with one steel nail preformed hole, and a four-way positioning column and a two-way positioning column which are raised between the two steel nail preformed holes; the upper end and the lower end of the reverse surface are provided with buckling holes and two positioning holes with different protruding degrees so as to respectively fix the sensor and the buckle reversely, fix the sensor switch body positively, and fix the first fixing buckle and the second fixing buckle between the buckling holes and the two positioning holes so as to fix the electric wire reversely.

Specifically, a raised positioning facet is further arranged around the steel nail preformed hole on the forward face, and the section of the positioning facet is composed of three sections of truncated circular rings.

Specifically, four locating ribs and four locating bayonets are arranged on the surface of the column body of the four-way locating column, the four locating ribs are located at the bottom to the middle of the surface of the column body, and the locating bayonets are located at the top to the middle of the surface of the column body.

Specifically, two adjacent positioning ribs or positioning bayonets are 90 degrees, and 45 degrees are formed between the adjacent positioning ribs and the adjacent positioning bayonets.

Specifically, the two-way positioning column is provided with two positioning wings protruding along the column axis, and 180 degrees are formed between the two positioning wings.

Specifically, the sensor and the clasp of the clasp are secured in the clasp bore in opposite directions.

Specifically, the sensor switch body is provided with two raised sensor positioning columns, and the sensor positioning columns extend out of the positioning holes and are reversely fixed on the positioning holes by the buckling of the micro-switch sensor fixing plate.

Specifically, an upper elastic sheet extending downwards in an inclined manner is arranged at the bottom of the sensor switch body, and when the upper elastic sheet is pressed and deformed back to the bottom, the sensor switch body is triggered to output a signal to an ECU (electronic control Unit) for controlling the airbag to be sprung and opened; when the upper elastic sheet rebounds to be far away from the bottom, the sensor switch body is disconnected so as to stop outputting signals to the ECU for controlling the airbag to be sprung.

Specifically, the signal trigger plate comprises two fixed ends with the steel nail preformed holes and a trigger plate main body, wherein the trigger plate main body is rectangular, and one end of the trigger plate main body and the upper elastic sheet obliquely extend downwards in the same direction so as to be beneficial to triggering of the trigger plate main body and the upper elastic sheet.

Specifically, the stationary rail sheet metal opponent part of the seat is composed of two sheet metal opponent parts.

Specifically, the sizes of the steel nail reserved holes on the two sheet metal opposite hand pieces can be different, and the steel nail reserved holes are matched with the respective steel nails.

The beneficial effects of the utility model include:

(1) The mounting bracket is integral, so that the assembly of the half assembly of the trigger end of the micro switch is facilitated, the pre-tightening effect can be achieved before the micro switch is truly fixed, an operator can install the micro switch with one hand and then fasten the micro switch with screws, and the micro switch is convenient and reliable.

(2) The effect of accurate installation can be played through special structure (four-way reference column, two-way reference column, location facet, buckle hole, first fixed knot, second fixed knot and the locating hole) on the installing support, can also reduce the precision error when mutually adorning because of the multipart when using, makes the installation more stable.

(3) The utility model can effectively realize the output and stop of signals through the upward pressing and the rebound of the upper elastic sheet.

Drawings

In order to more clearly illustrate the technical solutions of the present utility model, the following brief description of the drawings is given for the purpose of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without the need for inventive work for a person skilled in the art.

Fig. 1 is an exploded view of the components of the present utility model.

Fig. 2 is an exploded view of the components of the trigger end half assembly of the microswitch of the present utility model.

Fig. 3 is a schematic view of the fixation of the micro switch sensor, the mounting bracket and the steel nail.

Fig. 4 is a schematic diagram of the fixation of the micro switch trigger end half assembly and the sheet metal opponent of the seat moving rail.

Fig. 5 is a schematic diagram of the connection of the signal trigger plate and the stationary rail sheet metal opponent of the seat.

Fig. 6 is a schematic diagram of the trigger end half assembly of the micro switch and the signal trigger plate according to the present utility model.

Fig. 7 is a schematic diagram of the operation of the microswitch trigger half assembly of the present utility model on a seat track.

Symbol description

1. A microswitch sensor;

11. sensor and buckle

111. A buckle;

12. electric wire

13. Sensor switch body

131. A sensor positioning column;

132. a spring plate is arranged;

2. a mounting bracket;

21. a four-way positioning column;

211. positioning ribs;

212. positioning bayonets;

22. a two-way positioning column;

222. positioning wings;

23. locating the facets;

24. a snap hole;

25. first fixing buckle

26. Second fixing buckle

27. Positioning holes;

3. a micro-switch sensor fixing plate;

4. seat movable rail sheet metal opponent;

5. steel nails;

51. self-tapping screw;

52. a rivet;

6. seat static rail sheet metal opponent;

7. a signal trigger plate;

p0 is installed at an initial position;

p1 signal output initial point position;

the P2 signal outputs the end point position.

Detailed Description

The following description of the embodiments of the present utility model will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, there is shown an automotive seat STPS sensor application system with a fixture assembly according to the present utility model comprising: the micro-switch trigger end half assembly is composed of a micro-switch sensor 1, a mounting bracket 2 and a micro-switch sensor fixing plate 3 in sequence; the micro-switch trigger end half assembly and the seat movable rail sheet metal opponent 4 sequentially penetrate through steel nail preformed holes on two sides of the micro-switch trigger end half assembly and the seat movable rail sheet metal opponent 4 by steel nails 5 to be fixedly arranged on the seat movable rail; the signal trigger plate 7 and the seat static rail sheet metal opponent 6 are also fixedly arranged on the seat static rail by penetrating the steel nails 5 through the steel nail preformed holes of the signal trigger plate and the seat static rail sheet metal opponent in sequence; the micro switch trigger end half assembly is triggered or disconnected with the signal trigger plate 7 through the relative movement of the seat movable rail and the seat static rail, so that the ECU for controlling the pop-up air bag is output or stopped from outputting signals.

The steel nail 5 is selected from a tapping screw 51 or a rivet 52. The micro switch sensor 1 is composed of a sensor at the upper part and a buckle 11 which is connected with a sensor switch body 13 at the lower part through a wire 12 at the middle part. The projection of the forward surface and the reverse surface of the mounting bracket 2 is T-shaped, and the left end and the right end of the forward surface are respectively provided with a steel nail preformed hole, a four-way positioning column 21 and a two-way positioning column 22 which are raised between the two steel nail preformed holes; the upper and lower ends of the reverse surface are provided with a snap hole 24 and two positioning holes 27 of different degrees of protrusion to fix the sensor and the snap 11 in reverse and the sensor switch body 13 in forward respectively, and a first fixing button 25 and a second fixing button 26 provided between the snap hole 24 and the two positioning holes 27 to fix the electric wire 12 in reverse. The periphery of the steel nail preformed hole on the forward face is also provided with a convex positioning facet 23, and the section of the positioning facet 23 consists of three sections of truncated circular rings. The surface of the four-way positioning column 21 is provided with four positioning ribs 211 and four positioning bayonets 212 which are raised along the circumference of the column, the positioning ribs 211 are positioned from the bottom to the middle of the surface of the column, and the positioning bayonets 212 are positioned from the top to the middle of the surface of the column. The adjacent two positioning ribs 211 or positioning bayonets 212 are 90 degrees, and the adjacent positioning ribs 211 and positioning bayonets 212 are 45 degrees. The two-way positioning column 22 is provided with two positioning wings 222 protruding along the column axis, and 180 degrees are formed between the two positioning wings 222. The sensor and the catch 111 of the catch 1 are fixed in the catch hole 24 in the opposite direction. The sensor switch body 13 is provided with two raised sensor positioning posts 131, and the sensor positioning posts 131 extend out of the positioning holes 27 and are reversely fixed on the positioning holes 27 by the micro switch sensor fixing plate buckle 3. The bottom of the sensor switch body 13 is provided with an upper elastic sheet 132 extending obliquely downwards, and when the upper elastic sheet 132 is pressed and deformed back to the bottom of the sensor switch body 13, the sensor switch body 13 is triggered to output a signal to an ECU (electronic control Unit) for controlling the pop-up airbag; when the upper spring piece 13 rebounds away from the bottom of the sensor switch body 13, the sensor switch body 13 is disconnected so as to stop outputting a signal to the ECU controlling the pop-up airbag. The signal trigger plate 7 consists of two fixed ends with steel nail preformed holes and a trigger plate main body, wherein the trigger plate main body is rectangular, and one end of the trigger plate main body and the upper elastic sheet 13 extend downwards in an inclined manner in the same direction so as to be beneficial to triggering with the upper elastic sheet 13. The seat static rail sheet metal opponent 7 consists of two sheet metal opponents. The sizes of the steel nail reserved holes on the two sheet metal opposite hand pieces can be different, and the steel nail reserved holes are matched with the respective steel nails.

Referring to fig. 1-6, a method of securing assembly of the present utility model is shown:

1. fixed assembly of micro-gap switch trigger end half assembly

Firstly, a sensor positioning column 131 of the sensor switch body 13 penetrates out of a positioning hole 27 from the forward surface of the mounting bracket 2 so as to fix the sensor switch body 13 forward, and then the sensor switch body 13 is reversely fixed on the positioning hole 27 by a buckle of the micro switch sensor fixing plate 3, so that preliminary fixing and positioning are completed; then the electric wire 12 is reversely fixed on the first fixing buckle 25 and the second fixing buckle 26, and finally the buckle 111 for fixing the sensor and the buckle 11 is reversely fixed in the buckle hole 24 to complete the fixing assembly of the micro-switch trigger end half assembly.

2. The micro-switch trigger end half assembly is fixed on the seat movable rail

The micro-switch trigger end half assembly and the seat movable rail sheet metal are correspondingly assembled to the hand piece 4, the four-way positioning column 21 on the mounting bracket 2 limits 2 degrees of freedom (the positioning ribs 211 and the positioning bayonets 212 respectively), the two-way positioning column 22 limits 1 degree of freedom (namely the positioning wings 222), and the positioning facet 23 limits 3 degrees of freedom (namely the three-section truncated circular ring). Meanwhile, 4 positioning bayonets 212 are formed on the four-way positioning column 21 on the mounting bracket 2, so that a pre-tightening effect can be achieved. Finally, the self-tapping screw 51 is installed in the steel nail preformed hole, locking operation is completed, and the micro-switch trigger end half assembly is fixed on the seat movable rail.

3. The signal trigger plate is fixed on the static rail of the seat

The signal trigger plate 7 and the seat static rail sheet metal are correspondingly assembled to the hand piece 6, the fixed rivet 52 is arranged in the steel nail reserved hole, locking operation is completed, and the signal trigger plate 7 is fixed on the seat static rail.

The principle of the utility model is as follows:

referring to fig. 7, the micro-switch trigger end half assembly is fixed at an installation initial position PO of the seat moving rail; when the half assembly of the trigger end of the micro switch moves leftwards to the signal output initial point position P1, the bottom of the sensor switch body 13 is provided with an upper elastic sheet 132, the upper elastic sheet 132 is pressed and deformed back to the bottom of the sensor switch body 13, and because the micro switch sensor 1 is internally provided with resistors with different resistance values, the switch of the sensor switch body 13 is triggered through the change of current, and a signal is output to an ECU (electronic control Unit) for controlling the pop-up safety airbag; when the half assembly of the trigger end of the micro switch continues to move leftwards to the signal output end point position P2, the upper elastic sheet 13 rebounds to be far away from the bottom of the sensor switch body 13, and as different resistance resistors are arranged in the micro switch sensor 1, the switch of the sensor switch body 13 is disconnected through the change of current, and the output signal is stopped to the ECU for controlling the pop-up airbag.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the scope of the utility model, but rather to cover any modifications, equivalents, improvements or the like within the spirit and scope of the present utility model.

Claims (14)

1. An automotive seat STPS sensor application system comprising a stationary assembly comprising: the micro-switch trigger end half assembly is composed of a micro-switch sensor, a mounting bracket and a micro-switch sensor fixing plate in sequence; the micro-switch trigger end half assembly and the seat movable rail sheet metal opponent part are fixedly arranged on the seat movable rail through steel nails which sequentially penetrate through steel nail preformed holes on two sides of the micro-switch trigger end half assembly and the seat movable rail sheet metal opponent part; the signal trigger plate and the seat static rail sheet metal opponent part are fixedly arranged on the seat static rail by penetrating through respective steel nail preformed holes of the steel nails in sequence; the micro switch trigger end half assembly is triggered or disconnected with the signal trigger plate through the relative movement of the seat movable rail and the seat static rail, so that the ECU for controlling the pop-up air bag to output or stop outputting signals is realized.

2. The automotive seat STPS sensor application system according to claim 1, wherein the steel nail is selected from a self-tapping screw or a rivet.

3. The sensor-in-car-seat STPS sensor application of claim 1, wherein the micro-switch sensor is composed of a sensor at an upper portion and a sensor switch body at a lower portion connected by a wire at a middle portion.

4. The STPS sensor application system for the automobile seat according to claim 3, wherein the projection of the forward surface and the reverse surface of the mounting bracket is T-shaped, and the left end and the right end of the forward surface are respectively provided with a steel nail preformed hole, a four-way positioning column and a two-way positioning column which are raised between the two steel nail preformed holes; the upper end and the lower end of the reverse surface are provided with buckling holes and two positioning holes with different protruding degrees so as to respectively fix the sensor and the buckle reversely, fix the sensor switch body positively, and fix the first fixing buckle and the second fixing buckle between the buckling holes and the two positioning holes so as to fix the electric wire reversely.

5. The automotive seat STPS sensor application of claim 4, further comprising a raised locating facet around the steel pin preformed hole of the forward face, the locating facet being formed in cross section by a three-section truncated ring.

6. The application system of the STPS sensor of the automobile seat according to claim 4, wherein the column surface of the four-way positioning column is provided with four positioning ribs and four positioning bayonets which are raised along the column circumference, the positioning ribs are positioned from the bottom to the middle of the column surface, and the positioning bayonets are positioned from the top to the middle of the column surface.

7. The automotive seat STPS sensor application of claim 6, wherein 90 degrees are between two adjacent ones of the positioning ribs or the positioning bayonets and 45 degrees are between two adjacent ones of the positioning ribs and the positioning bayonets.

8. The system of claim 4, wherein the two positioning posts have two positioning wings protruding along the post axis, and the two positioning wings are 180 degrees apart.

9. The automotive seat STPS sensor application of claim 4, wherein the raised tabs of the sensor and tabs are secured in the tab holes in opposite directions.

10. The sensor switch assembly of claim 4, wherein said sensor switch body has two raised sensor posts extending from said locating holes and secured in opposite directions to said locating holes by said microswitch sensor mounting plate.

11. The sensor application system of the automobile seat STPS according to claim 1, wherein an upper spring extending obliquely downwards is arranged at the bottom of the sensor switch body, and the upper spring triggers the sensor switch body when being pressed and deformed upwards to tie back the bottom so as to output a signal to an ECU for controlling the airbag to be sprung; when the upper elastic sheet rebounds to be far away from the bottom, the sensor switch body is disconnected so as to stop outputting signals to the ECU for controlling the airbag to be sprung.

12. The sensor system of claim 11, wherein the signal trigger plate comprises two fixed ends with the steel nail preformed holes and a trigger plate main body, wherein the trigger plate main body is rectangular and one end of the trigger plate main body extends obliquely downwards in the same direction with the upper spring plate so as to be beneficial to triggering with the upper spring plate.

13. The automotive seat STPS sensor application system of claim 1, wherein the seat static rail sheet metal opponent is comprised of two sheet metal opponents.

14. The automotive seat STPS sensor application system of claim 13, wherein the steel pin preformed holes on the two sheet metal opponents may be different in size, the steel pin preformed holes being matched with the respective steel pins.