CN215524642U

CN215524642U - Thin film type seat safety system sensor

Info

Publication number: CN215524642U
Application number: CN202121882183.6U
Authority: CN
Inventors: 葛涛
Original assignee: Qijin Technology Jiangsu Co ltd
Current assignee: Qijin Technology Jiangsu Co ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2022-01-14
Anticipated expiration: 2031-08-11

Abstract

The utility model discloses a film type seat safety system sensor, which comprises a pressure sensing area and a tail connecting area, wherein the tail connecting area is provided with a lead connected with the pressure sensing area, the lead is provided with a detection resistor, the detection resistor is connected with the pressure sensing area in parallel, the tail connecting area is connected with a fixed sealing block, and the detection resistor, the end part of the lead and the end part of the tail connecting area are all fixed in the fixed sealing block.

Description

Thin film type seat safety system sensor

Technical Field

The utility model belongs to the technical field of automobile seat sensors, and particularly relates to a film type seat safety system sensor.

Background

Seat safety system sensors are used in vehicle seat occupant sensing systems such as seat belt alarm sensors, taxi automatic fare meters, air bag sensing and driver out of seat, for example, with this device it can sense the presence or absence of a person in the seat and if not the air bag is not deployed. The driver can automatically return to the neutral position when leaving the seat. The shape of the sensor and the sensitivity of the contact can be designed according to the shape and the hardness of the automobile seat and the tightness of the skin.

For example, chinese patent application No. 2020103544332 discloses a pressure sensor for a car seat, comprising: the pressure sensor comprises a first pressure sensing area, a second pressure sensing area, a middle connecting area and a tail connecting area; the first pressure sensing area, the second pressure sensing area, the middle connecting area and the tail connecting area are respectively provided with a first printing layer, a double-faced adhesive layer and a second printing layer; the first printing layer and the second printing layer are bonded through a double-sided adhesive layer; the double-sided adhesive layers of the first pressure sensing area and the second pressure sensing area are provided with contact points and branches, and the adjacent contact points are communicated through the branches; the double-sided adhesive layer of the first pressure sensing area and the double-sided adhesive layer of the second pressure sensing area are also provided with exhaust grooves; the exhaust groove is communicated with the contact point and/or the branch; the first pressure sensing area is connected with the second pressure sensing area through the middle connecting area; the second pressure sensing area is connected with the tail connecting area; when pressure exists on the automobile seat pressure sensor, the contact point is extruded to discharge air in the contact point through the exhaust groove, so that the first printing layer and the second printing layer form a conduction state through the contact point, and the automobile seat pressure sensor outputs a changed resistance value to a vehicle main control system; when the pressure on the automobile seat pressure sensor disappears, the contact point can suck air through the exhaust groove and restore the deformation, so that the first printing layer and the second printing layer are in an open circuit state again.

For another example, chinese patent application No. 201820426967X discloses a film seat sensor, which includes an upper circuit layer, a middle interlayer, and a lower circuit layer sequentially attached from top to bottom; the upper circuit layer comprises a first PET layer, an upper circuit silver paste layer and an upper circuit carbon paste layer which are sequentially printed on the lower surface of the first PET layer; the middle interlayer is a second PET layer, and the second PET layer is provided with a plurality of through holes; the lower circuit layer comprises a third PET layer, and a lower circuit silver paste layer and a lower circuit carbon paste layer which are sequentially printed on the upper surface of the third PET layer; the upper circuit silver paste layer and the lower circuit silver paste layer are provided with a plurality of silver paste contacts corresponding to each other; the upper line carbon paste layer and the lower line carbon paste layer are provided with a plurality of carbon paste contacts corresponding to each other; the through holes, the silver paste contacts and the carbon paste contacts of the second PET layer are all arranged correspondingly; the operating resistance is (0, 150 Ω), and the non-operating resistance is (1000K Ω, + ∞). When a person sits on the electric circuit, the circuit connection resistance value is within the working resistance value, and the person is detected to sit. After the person leaves, the switch-on and switch-off are carried out, the resistance value is within the non-working resistance value, and the person is detected to leave.

Above-mentioned two film sensor homoenergetic reach when someone takes the circuit switch-on, and the resistance is less, and when nobody took, the circuit breaks off completely, and the resistance is the infinity, but when it broke down, when circuit disconnection or silver thick liquid layer damaged unable switch-on, no matter someone took this moment, whole circuit all was in the off-state, and the system can't learn that where breaks down.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides the detection resistor, the whole circuit is in a conducting state when no person sits, and the resistance of the circuit is greatly reduced when a person sits, so that the state of the whole circuit can be detected at any time and can be found in time when a fault occurs.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a film formula seat safety coefficient sensor, includes forced induction district and afterbody joining region, afterbody joining region is provided with the wire of connecting the forced induction district, be provided with detection resistance on the wire, detection resistance and forced induction district are parallelly connected.

Further the tail connecting area is connected with a fixed sealing block, and the end parts of the detection resistor, the lead and the tail connecting area are all fixed in the fixed sealing block.

The pressure sensing area comprises a first printing layer, a first double-sided adhesive layer, a second printing layer and a second double-sided adhesive layer, the first double-sided adhesive layer is located between the first printing layer and the second printing layer, and the second printing layer is located between the first double-sided adhesive layer and the second double-sided adhesive layer.

Further the forced induction district includes a plurality of contact points and branch road, and adjacent two contact points pass through the branch road intercommunication, be provided with air discharge duct and exhaust hole on the branch road, the air discharge duct is located first double-sided adhesive layer, and the air discharge duct runs through first double-sided adhesive layer's side along the horizontal direction, the exhaust hole is along vertical first double-sided adhesive layer, second printing layer and the double-sided adhesive layer of running through of second.

Further the exhaust groove and the exhaust hole are mutually staggered in the horizontal direction.

Compared with the prior art, the utility model has the beneficial effects that: by arranging the detection resistor connected with the pressure sensing area in parallel, when no person takes the vehicle, the circuit is conducted through the detection resistor, the current still exists in the circuit, when a person takes the vehicle, the resistance of the pressure sensing area is far smaller than the detection resistor, the current is larger, when the circuit breaks down, if the circuit is in front of the detection resistor, no current exists in the circuit, the resistance is infinite, and if the circuit is behind the detection resistor, the current in the circuit keeps unchanged no matter whether a person takes the vehicle or not, namely, the utility model can quickly know whether the fault occurs or not and the occurrence position of the fault occurs.

Drawings

FIG. 1 is a front view of a first embodiment of the present invention;

FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;

fig. 3 is a front view of a second embodiment of the present invention.

Reference numerals: 1. a pressure sensing region; 11. a first printed layer; 12. a first double-sided adhesive layer; 13. a second printed layer; 14. a second double-sided adhesive layer; 2. a tail connection region; 3. fixing a sealing block; 4. a wire; 5. detecting a resistance; 6. an exhaust hole; 7. an exhaust groove.

Detailed Description

Embodiments of the thin film seat safety system sensor of the present invention are further described with reference to fig. 1 to 3.

In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate that the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the utility model, "a number" or "a number" means two or more unless explicitly specified otherwise.

The first embodiment is as follows:

the utility model provides a film formula seat safety system sensor, includes forced induction district 1 and afterbody joining region 2, afterbody joining region 2 is provided with wire 4 of connecting forced induction district 1, be provided with detection resistance 5 on the wire 4, detection resistance 5 is parallelly connected with forced induction district 1.

In this embodiment, the tail connection region 2 is preferably connected to a fixed sealing block 3, and the detection resistor 5, the end of the lead 4, and the end of the tail connection region 2 are all fixed in the fixed sealing block 3.

One end of the wire 4 is connected to the electrical system of the vehicle, which supplies power to the sensor and is able to detect the current or resistance in the sensor.

The resistance of the detection resistor 5 used in this embodiment is much larger than the resistance of the pressure sensing area 1 when the circuit is turned on.

The end parts of the detection resistor 5 and the lead 4 and the tail connecting area 2 are fixedly sealed inside through the fixing and sealing block 3, so that the purposes of fixing and water proofing can be realized, and the stable work of the connecting part is ensured.

The pressure sensing area 1 preferably includes a first printed layer 11, a first double-sided adhesive layer 12, a second printed layer 13 and a second double-sided adhesive layer 14, wherein the first double-sided adhesive layer 12 is located between the first printed layer 11 and the second printed layer 13, and the second printed layer 13 is located between the first double-sided adhesive layer 12 and the second double-sided adhesive layer 14.

The first double-sided adhesive layer 12 is used for fixing the first printing layer 11 and the second printing layer 13, and the second double-sided adhesive layer 14 is used for attaching the pressure sensing area 1 to the seat, so that the use is convenient.

This embodiment is preferred pressure-sensitive area 1 includes a plurality of contact points and branch road, and adjacent two contact points pass through the branch road intercommunication, be provided with air discharge duct 7 and exhaust hole 6 on the branch road, air discharge duct 7 is located first double-sided adhesive layer 12, and air discharge duct 7 runs through the side of first double-sided adhesive layer 12 along the horizontal direction, exhaust hole 6 runs through first double-sided adhesive layer 12, second printing layer 13 and second double-sided adhesive layer 14 along vertical.

In this embodiment, as shown in fig. 1 and fig. 2, it is preferable that the exhaust groove 7 and the exhaust hole 6 are at the same position in the horizontal direction, the exhaust groove 7 is disposed such that the first printing layer 11 and the second printing layer 13 are not attached to each other, the first double-sided adhesive has a thickness to separate the first printing layer 11 from the second printing layer 13 to form the exhaust groove 7, and the exhaust hole 6 directly penetrates from the first double-sided adhesive layer 12 to the outer side surface of the second double-sided adhesive layer 14; when exhausting or sucking, the exhaust groove 7 and the exhaust hole 6 can be simultaneously performed; and the two can mutually form a redundant exhaust position to prevent one of the two from being blocked and incapable of exhausting due to material or installation or use.

Example two:

as shown in fig. 3, in the present embodiment, the exhaust groove 7 and the exhaust hole 6 are staggered from each other in the horizontal direction, and other technical features are the same as those of the first embodiment, and in the present embodiment, the exhaust groove 7 and the exhaust hole 6 are staggered from each other, so that the probability that both are simultaneously blocked during installation or use can be reduced.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims

1. A membrane seat safety system sensor comprising a pressure sensing area and a tail attachment area, wherein: the tail connecting area is provided with a lead connected with the pressure sensing area, the lead is provided with a detection resistor, and the detection resistor is connected with the pressure sensing area in parallel.

2. The thin film seat safety system sensor of claim 1, wherein: the tail connecting area is connected with a fixed sealing block, and the detection resistor, the end part of the lead and the end part of the tail connecting area are fixed in the fixed sealing block.

3. The thin film seat safety system sensor of claim 2, wherein: the forced induction district includes first printing layer, first double-sided glue film, second printing layer and second double-sided glue film, first double-sided glue film is located between first printing layer and the second printing layer, the second printing layer is located between first double-sided glue film and the second double-sided glue film.

4. The thin film seat safety system sensor of claim 3, wherein: the forced induction district includes a plurality of contact points and branch road, and adjacent two contact points pass through the branch road intercommunication, be provided with air discharge duct and exhaust hole on the branch road, the air discharge duct is located first double-sided adhesive layer, and the air discharge duct runs through first double-sided adhesive layer's side along the horizontal direction, the exhaust hole runs through first double-sided adhesive layer, second printing layer and second double-sided adhesive layer along vertical.

5. The thin film seat safety system sensor of claim 4, wherein: the exhaust grooves and the exhaust holes are staggered in the horizontal direction.