Connecting structure for preventing water from entering space occupying sensor

Abstract

The utility model relates to a connecting structure for preventing water from entering an occupying sensor, which comprises an occupying prevention sensor body positioned between a seat cover and seat foam, and the occupying prevention sensor body comprises an upper thin film protection layer, an upper silver paste layer, an upper carbon paste layer, an adhesive layer, a lower carbon paste layer, a lower silver paste layer and a lower thin film protection layer which are sequentially arranged from top to bottom, an air hole penetrating through the lower thin film protection layer, the lower silver paste layer and the lower carbon paste layer to be communicated with the adhesive layer is formed in the side, close to the seat foam, of the lower thin film protection layer, a waterproof breathable film is pasted to the position, located at the air hole, of the lower thin film protection layer, the waterproof breathable film is used for water blocking and ventilation, and the waterproof breathable film is made of ePTFE; the waterproof air-permeable membrane has the advantages that the waterproof air-permeable membrane is adhered to the position of the air-permeable hole in the bottom layer of the SBR, so that when water exists, the water is prevented from entering the SBR middle layer.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile seats, in particular to a connecting structure for preventing water from entering an occupancy sensor. BACKGROUND

[0002] With the rapid development of the electric vehicle industry, the high requirements of electric vehicles on passenger safety, all seats are currently equipped with seat occupancy sensors SBR (Safety Belt Reminder), i.e. safety belt reminder devices. The device is usually installed between the seat foam and the skin or between the foam and the skeleton, and functions to issue an alarm when a passenger is seated but does not wear a safety belt, so as to remind the co-driver passenger to wear a safety belt. The SBR sample has a gas permeable hole, the gas in the SBR is discharged, the upper and lower two layers of the SBR are in communication, and a specified resistance is output, so as to realize sensing whether the seat is occupied. However, the seat occupancy sensors SBR on the market do not have a waterproof function, and when the surface of the seat is watered, the SBR is prone to water entering, which causes the SBR to fail. SUMMARY

[0003] In view of the above problems, the purpose of the present application is to provide a connecting structure for preventing water from entering an occupancy sensor, which is used to prevent water from entering the SBR, so as to overcome the shortcomings of the prior art.

[0004] The connecting structure for preventing water from entering an occupancy sensor provided by the present application comprises: a water-preventing occupancy sensor body located between a seat surface cover and seat foaming, wherein the water-preventing occupancy sensor body comprises: an upper film protection layer, an upper silver paste layer, an upper carbon paste layer, a glue layer, a lower carbon paste layer, a lower silver paste layer and a lower film protection layer which are sequentially arranged from top to bottom, and a gas permeable hole is formed in the lower film protection layer and communicates with the glue layer through the lower film protection layer, the lower silver paste layer and the lower carbon paste layer on the side close to the seat foaming, and the improvement is that a waterproof gas permeable film is pasted on the position of the gas permeable hole on the lower film protection layer, the waterproof gas permeable film is used for water blocking and air permeation, and the material of the waterproof gas permeable film is ePTFE.

[0005] The beneficial effects of the present application are as follows: by pasting the waterproof gas permeable film on the position of the gas permeable hole of the bottom layer of the occupancy sensor (SBR), when there is water, the water is blocked from entering the middle layer of the SBR. BRIEF DESCRIPTION OF DRAWINGS

[0006] Other purposes and results of the present application will be more apparent and easy to understand by referring to the following description in conjunction with the drawings and with a more comprehensive understanding of the present application. In the drawings:

[0007] Fig. 1 It is a schematic diagram of the overall structure in the present embodiment.

[0008] Fig. 2 It is a schematic diagram of the occupancy sensor body in the present embodiment.

[0009] The figure mark: seat cover 1, seat foam 2, upper film protective layer 3, upper silver paste layer 4, upper carbon paste layer 5, glue layer 6, lower carbon paste layer 7, lower silver paste layer 8, lower film protective layer 9, air hole 10, waterproof air-permeable film 11, seat occupancy sensor body 12. DETAILED DESCRIPTION

[0010] Referring to Figs. 1-2 The embodiment shown provides a kind of connecting structure for preventing seat occupancy sensor from entering water, comprising: between seat cover 1 and seat foam 2, prevent seat occupancy sensor body 12, stop seat occupancy sensor body 12 includes: from top to bottom sequentially arranged upper film protective layer 3, upper silver paste layer 4, upper carbon paste layer 5, glue layer 6, lower carbon paste layer 7, lower silver paste layer 8, lower film protective layer 9, air hole 10 is set in the side close to seat foam 2, through lower film protective layer 9, lower silver paste layer 8 and lower carbon paste layer 7 and communicate glue layer 6, waterproof air-permeable film 11 is pasted on the position of air hole 10 on lower film protective layer 9, waterproof air-permeable film 11 is used for water blocking and ventilation, and the material of waterproof air-permeable film 11 is ePTFE.

[0011] Working principle: because seat occupancy sensor SBR is provided with air hole, when internal gas is discharged, make seat occupancy sensor SBR upper and lower two layers conduct, output specified resistance, realize whether the seat is occupied and sensed. Wherein, seat occupancy sensor SBR is compounded, and middle layer is disconnected in the position of air hole, and it is favorable for air to be discharged after upper and lower two layers contact. Waterproof air-permeable film 11 is pasted in the position of air hole 10 of bottom layer, when there is water, block water from entering into the middle layer of seat occupancy sensor SBR, and then solve the problem that water enters seat occupancy sensor SBR after seat is accidentally watered, and then conduct, directly make upper and lower layers contact, and send error signal problem.

[0012] The above is only specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of change or replacement within the technical range disclosed by the present application, and should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be limited by the protection scope of claim.

Claims

1. A connection structure for preventing water from entering an occupancy sensor, comprising: The anti-occupancy sensor body between the seat cover and the seat foam, the anti-occupancy sensor body comprises: from top to bottom, an upper film protection layer, an upper silver paste layer, an upper carbon paste layer, a glue layer, a lower carbon paste layer, a lower silver paste layer and a lower film protection layer are sequentially arranged, a gas permeable hole is arranged on the side close to the seat foam, the gas permeable hole communicates with the glue layer through the lower film protection layer, the lower silver paste layer and the lower carbon paste layer, characterized in that: a waterproof and breathable film is pasted on the position of the gas permeable hole on the lower film protection layer, the waterproof and breathable film is used for water blocking and air permeation, and the material of the waterproof and breathable film is ePTFE.

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