CN220755255U

CN220755255U - Waterproof structure of SBR sensor

Info

Publication number: CN220755255U
Application number: CN202322267555.XU
Authority: CN
Inventors: 高友田; 高博; 侯延庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-08-22
Filing date: 2023-08-22
Publication date: 2024-04-09
Anticipated expiration: 2033-08-22

Abstract

The utility model discloses a waterproof structure of an SBR sensor, which comprises a shell, wherein a plurality of contacts and wires for connecting the contacts together are arranged in the shell, all the wires are connected to a circuit board, the circuit board is connected to an output circuit, cavities are arranged in the contacts, the shell is of a full-sealing structure, and the cavities of the contacts are connected with a sealing air chamber through pipelines. The contact of the utility model carries out internal circulation through the preset air chamber, has the functions of being conducted under external pressure and preventing the interference of external water inflow and erroneous conduction, and can ensure that the function is normal under various environments.

Description

Waterproof structure of SBR sensor

Technical Field

The utility model relates to a waterproof structure of an SBR sensor (namely a safety belt reminding device sensor, also called a seat occupation sensor for short, SBR), belonging to the fields of fuel vehicles, electric vehicles and sharing bicycles.

Background

In the past, when the contacts in the SBR design in the fuel car and electric car industry are conducted, exhaust needs to be carried out, the exhaust is carried out to the outside of the SBR, under the condition of no stress in the middle of the contacts, double faced adhesive tape around the contacts is supported, after stress, when the contacts are contacted, firstly, the contacts can be conducted only by exhausting air in the contacts, at this moment, the exhaust holes are communicated with the outside, the SBR sensor is usually arranged on foam cotton in a seat, after the protective skin outside the seat is drenched or in a humid environment, the foam cotton in the seat can absorb moisture, and the moisture enters the seat, so that the inside of the SBR is also filled with water, the position of the water enters along the air holes, once the contacts are conducted, the SBR sensor gives an alarm, and the vehicle cannot be used normally.

At present, more and more cases of SBR water inflow conduction occur in rainy seasons in the market, the cost is increased for protection, and improvement is performed on other cases, such as changing the skin of a seat into a waterproof type, and the problems still occur in environments with high humidity due to some effects in rainy days.

Disclosure of Invention

The utility model aims to solve the technical problems that: how to prevent the SBR water from being communicated in rainy season.

In order to solve the technical problems, the technical scheme of the utility model provides a waterproof structure of an SBR sensor, which comprises a shell, wherein a plurality of contacts and wires for connecting the contacts together are arranged in the shell, all the wires are connected to a circuit board, the circuit board is connected to an output circuit, and a cavity is arranged in the contacts.

Preferably, the sealed air chamber is arranged in the shell or arranged outside the shell.

Preferably, the contacts are respectively clung to the inner wall of the shell; the shell is a PET film; the contact, the wire and the pipeline communicated with the contact cavity are all sealed and wrapped by the PET film.

Preferably, the sealed air chamber has enough space inside to allow the internal air flow to circulate inside; exhausting air to the air chamber sealing air chamber when the contact is forced to be conducted; when the contact is not stressed, the inside of the sealed air chamber naturally reaches an equilibrium state.

The utility model makes the existing SBR into a fully sealed type, and has the function of the original sensor, and the air flow mobility when the contacts are conducted is utilized, so that a sealed air chamber is arranged in the SBR, and the sealed air chamber has the function of ensuring that the inside has enough space to enable the inside air flow to circulate internally. Exhausting air to the sealed air chamber when the contact is forced to be conducted; when the contact is not stressed, the inside of the sealed air chamber naturally reaches an equilibrium state. The utility model realizes the waterproof function on the basis of hardly increasing the price cost, and changes the exhaust and air inlet external circulation mode of the existing SBR product into the internal circulation of the structure of the utility model. The contact of the utility model carries out internal circulation through the preset air chamber, has the functions of being conducted under external pressure and preventing the interference of external water inflow and erroneous conduction, and can ensure that the function is normal under various environments.

Drawings

FIG. 1 is a schematic view of a waterproof structure of an SBR sensor;

fig. 2 is a schematic view of a sealed air chamber or contact cavity.

Detailed Description

In order to make the utility model more comprehensible, preferred embodiments accompanied with figures are described in detail below.

The utility model provides a waterproof structure of an SBR sensor, which is shown in figure 1, and comprises a shell 2, wherein the shell 2 is of a full-sealed structure, a plurality of contacts 3 and wires 4 for connecting the contacts 3 together are arranged in the shell 2, the contacts 3 are respectively clung to the inner wall of the shell 2, all the wires 4 are connected to a circuit board 5, and the circuit board 5 is connected to an output circuit 6. The contacts 3 are internally provided with cavities, the cavities of the contacts 3 are connected with the sealed air chamber 1 through pipelines, and the sealed air chamber 1 is arranged in the shell 2 or arranged outside the shell 2. The housing 2 is a PET film. The contact 3, the lead 4 and the pipeline communicated with the cavity of the contact 3 are all sealed and wrapped by PET film.

The inside of the sealed air chamber 1 has enough space to enable the internal air flow to circulate internally, and the contact 3 is exhausted to the air chamber sealed air chamber 1 when being forced to be conducted; when the contact 3 is not stressed, the inside of the sealed air chamber 1 naturally reaches an equilibrium state.

As shown in fig. 2, the sealed air chamber 1 is formed by stacking two sides of PET films by using double-sided adhesive 7, the double-sided adhesive 7 at the position of the sealed air chamber 1 and the position of the contact 3 is removed when being manufactured, the removed position forms a cavity, the bonded double-sided adhesive 7 also plays a supporting role in the middle of the films, the two sides of the contact can be separated, and a circuit is printed on the PET films. When the contact 3 is extruded, the lines on the PET films at the two sides are contacted and conducted, the thickness of the PET film is 0.125mm, the total thickness of the double faced adhesive tape 7 is about 0.5mm, the design diameter of the contact is 8mm to 12mm, the area of the sealed air chamber 1 is much larger than that of the contact, and therefore, the inside of the sealed air chamber is provided with air after sealing, and the air discharged by the contact 3 under extrusion contact is very little, so that the whole sealed air chamber 1 is not expanded.

Claims

1. The utility model provides a SBR sensor waterproof construction, includes shell (2), is equipped with a plurality of contacts (3) in shell (2) and connects wire (4) that each contact (3) are in the same place, and all wires (4) are connected to circuit board (5), and circuit board (5) are connected to output circuit (6), are equipped with the cavity in contact (3), its characterized in that, shell (2) be full seal structure, the cavity of each contact (3) passes through pipe connection sealed air chamber (1).

2. The SBR sensor waterproof structure of claim 1, wherein the sealed air chamber (1) is provided in the housing (2) or provided outside the housing (2).

3. The SBR sensor waterproof structure of claim 1, wherein the plurality of contacts (3) are respectively adhered to the inner wall of the housing (2); the shell (2) is a PET film; the contact (3), the lead (4) and the pipeline communicated with the cavity of the contact (3) are all sealed and wrapped by PET film.

4. The SBR sensor waterproof structure of claim 1, wherein the inside of the sealed air chamber (1) has a sufficient space for the internal air flow to circulate; exhausting air to the air chamber sealing air chamber (1) when the contact (3) is forced to be conducted; when the contact (3) is not stressed, the inside of the sealed air chamber (1) naturally reaches an equilibrium state.