SBR sensor

Abstract

The utility model discloses an SBR (sequencing batch reactor) sensor, which particularly relates to the technical field of automobile seat equipment and comprises an upper film layer, an insulating layer and a lower film layer, one side surface of the insulating layer is hermetically attached to the upper film layer, the other side surface of the insulating layer is hermetically attached to the lower film layer, and a plurality of contacts are uniformly distributed on the upper film layer and the lower film layer. Each contact is electrically communicated with the first terminal through a conductive piece, the insulating layer is provided with a plurality of through holes and an air cavity communicated with the through holes, the contacts on the upper film layer and the contacts on the lower film layer are arranged in a one-to-one correspondence manner, and a pair of corresponding contacts can be contacted and communicated through the through holes. The utility model has the advantages of simple structure, good waterproof and dustproof performance and capability of improving the durability of the product.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seat equipment, in particular to an SBR sensor. Background Art

[0002] With the increase in car ownership and the improvement in people's living standards, driving safety is receiving increasing attention. The SBR sensor (also known as the seat belt reminder sensor, or SBR for short) is a thin-film contact sensor with contacts evenly distributed across the seat's load-bearing surface. When the seat is occupied, the sensor is subjected to external pressure and generates a trigger signal. When the controller receives this trigger signal and detects that the occupant is not wearing a seat belt, it issues a visual and audible alarm to remind the passenger to fasten their seat belt.

[0003] At present, in the design of SBR sensors, when the contacts are turned on, the internal gas needs to be discharged to the outside of the SBR. When there is no force in the middle of the contact, the contacts are supported by double-sided tape on all sides. When the contacts are under force, the air in the contacts needs to be discharged first before the contacts can be turned on. At this time, the exhaust hole is connected to the outside world. The SBR sensor is usually installed on the foam inside the seat. In a humid environment, the foam inside the seat will absorb moisture, causing water to enter the SBR. Once water enters the SBR, the contacts will be turned on, and the SBR sensor will automatically alarm, affecting the owner's experience. Utility Model Content

[0004] The purpose of the utility model is to provide an SBR sensor to solve the problems existing in the above-mentioned prior art, which has a simple structure, good waterproof and dustproof properties, and can improve the durability of the product.

[0005] To achieve the above purpose, the present invention provides the following solutions:

[0006] The utility model provides an SBR sensor, comprising an upper film layer, an insulating layer and a lower film layer, one side surface of the insulating layer is sealed and fitted with the upper film layer, and the other side surface is sealed and fitted with the lower film layer, a plurality of contacts are arranged on the upper film layer and the lower film layer, each of the contacts is electrically connected to a first terminal through a conductive member, the insulating layer has a plurality of through holes and an air cavity connected to the through holes, the contacts on the upper film layer and the contacts on the lower film layer are arranged in a one-to-one correspondence, and a corresponding pair of the contacts can be in contact and connected through the through holes.

[0007] Preferably, the upper film layer and the lower film layer are made of PET film.

[0008] Preferably, the insulating layer is sealed and bonded to the upper film layer via PET double-sided adhesive, and the insulating layer is sealed and bonded to the lower film layer via PET double-sided adhesive.

[0009] Preferably, the conductive member includes a silver paste circuit layer and a carbon paste protective coating, the silver paste circuit layer is fixedly arranged on the upper film layer and the lower film layer, and the carbon paste protective coating is fixedly laid on the silver paste circuit layer.

[0010] Preferably, the insulating layer is made of insulating glue.

[0011] Preferably, it further comprises a waterproof tape layer, and the waterproof tape layer can wrap the upper membrane layer and the lower membrane layer.

[0012] Preferably, the first terminal is electrically connected to the second terminal through a wire, the first terminal is coated with hot melt adhesive, and the wire is sheathed with a PVC sleeve.

[0013] Compared with the prior art, the utility model has achieved the following technical effects:

[0014] The utility model provides an SBR sensor, wherein both sides of the insulating layer are sealed and fitted with the upper film layer and the lower film layer respectively, so that the SBR sensor as a whole has a fully sealed structure and has a good waterproof effect; and a certain volume of gas is stored in the through holes of the insulating layer and the air cavity; under the action of pressure, the upper film layer and the lower film layer will be deformed, and the contacts on the upper film layer and the contacts on the lower film layer can contact each other through the through holes, and when the contacts on the upper film layer and the contacts on the lower film layer contact each other, the gas in the through holes can be squeezed into the air cavity; when the pressure disappears and the contacts are not subjected to force, the gas inside the air cavity flows freely into the through holes, so that the contacts are separated. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is the structural diagram of SBR sensor;

[0017] Figure 2 This is an exploded view of the upper membrane layer, insulation layer, and lower membrane layer of the SBR sensor.

[0018] In the figure: 1-upper film layer; 2-lower film layer; 3-insulating layer; 4-contact; 5-conductive part; 6-through hole; 7-air cavity; 8-silver paste circuit layer; 9-carbon paste protective coating; 10-first terminal; 11-hot melt adhesive; 12-second terminal; 13-wire; 14-PVC casing. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] The purpose of the utility model is to provide an SBR sensor to solve the problems existing in the above-mentioned prior art, with a simple structure, good waterproof and dustproof performance, and the ability to improve the durability of the product.

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0022] The utility model provides an SBR sensor, such as Figure 1-2 As shown, it includes an upper film layer 1, an insulating layer 3 and a lower film layer 2. One side surface of the insulating layer 3 is sealed and fitted with the upper film layer 1, and the other side surface is sealed and fitted with the lower film layer 2. A plurality of contacts 4 are arranged on the upper film layer 1 and the lower film layer 2. Each contact 4 is electrically connected to the first terminal 10 through a conductive member 5. The insulating layer 3 has a plurality of through holes 6 and an air cavity 7 connected to the through holes 6. The contacts 4 on the upper film layer 1 and the contacts 4 on the lower film layer 2 are arranged one by one, and a corresponding pair of contacts 4 can be in contact and connected through the through holes 6. The insulating layer 3 is sealed against the upper and lower membrane layers 1 and 2 on both sides, respectively, creating a fully sealed SBR sensor structure with excellent waterproofing and improved product durability. Furthermore, a certain volume of gas is stored within the through-holes 6 and air cavity 7 of the insulating layer 3. Under pressure, the upper and lower membrane layers deform, allowing the contacts 4 on the upper and lower membrane layers 1 to contact each other through the through-holes 6. When these contacts 4 on the upper and lower membrane layers 2 come into contact, they squeeze the gas within the through-holes 6 into the air cavity 7. When the pressure disappears and the contacts 4 are free of force, the gas within the air cavity 7 flows freely into the through-holes 6, separating the contacts 4. The volume of the air cavity 7 is much larger than that of the contacts 4. Therefore, the gas expelled by the contacts 4 is almost negligible compared to the gas within the air cavity 7, preventing expansion of the sealed cavity as a whole. Furthermore, the volume of the air cavity 7 can accommodate both the exhaust volume required when all contacts 4 are triggered simultaneously and the intake volume required when all contacts 4 rebound simultaneously.

[0023] In the embodiment of the present invention, it is further preferred that the upper film layer 1 and the lower film layer 2 are made of PET film.

[0024] In the embodiment of the present invention, it is further preferred that the insulating layer 3 is sealed and bonded to the upper film layer 1 by means of PET double-sided adhesive, and the insulating layer 3 is sealed and bonded to the lower film layer 2 by means of PET double-sided adhesive, resulting in a good sealing effect.

[0025] In an embodiment of the present invention, it is further preferred that the conductive member 5 includes a silver paste circuit layer 8 and a carbon paste protective coating 9, wherein the silver paste circuit layer 8 is fixedly disposed on the upper film layer 1 and the lower film layer 2, and the carbon paste protective coating 9 is fixedly laid on the silver paste circuit layer 8. The carbon paste protective coating 9 is used to protect the carbon paste protective coating 9.

[0026] In the embodiment of the present invention, it is further preferred that the material of the insulating layer 3 is insulating glue.

[0027] It is further preferred in the embodiment of the present invention that the SBR sensor further includes a waterproof tape layer, which can wrap the upper membrane layer 1 and the lower membrane layer 2, further ensuring the waterproof effect of the SBR sensor.

[0028] In an embodiment of the present invention, the first terminal 10 is preferably electrically connected to the second terminal 12 via a wire 13. The first terminal 10 is coated with hot melt adhesive 11, and the wire 13 is covered with a PVC sleeve 14. The hot melt adhesive 11 wrapping the first terminal 10 not only provides waterproof and dustproof properties, but also provides a more secure connection between the first terminal 10 and the conductive layer interface of the SBR sensor.

[0029] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. An SBR sensor, characterized in that: It includes an upper film layer, an insulating layer and a lower film layer, one side surface of the insulating layer is sealed with the upper film layer, and the other side surface is sealed with the lower film layer. A plurality of contacts are arranged on the upper film layer and the lower film layer, and each of the contacts is electrically connected to the first terminal through a conductive member. The insulating layer has a plurality of through holes and air cavities connected to the through holes. The contacts on the upper film layer and the contacts on the lower film layer are arranged one by one, and a corresponding pair of contacts can be in contact and connected through the through holes.

2. The SBR sensor according to claim 1, characterized in that: The upper film layer and the lower film layer are made of PET film.

3. The SBR sensor according to claim 2, characterized in that: The insulating layer is sealed and bonded to the upper film layer via PET double-sided adhesive, and the insulating layer is sealed and bonded to the lower film layer via PET double-sided adhesive.

4. The SBR sensor according to claim 1, characterized in that: The conductive element includes a silver paste circuit layer and a carbon paste protective coating. The silver paste circuit layer is fixedly arranged on the upper film layer and the lower film layer, and the carbon paste protective coating is fixedly laid on the silver paste circuit layer.

5. The SBR sensor according to claim 1, characterized in that: The insulating layer is made of insulating glue.

6. The SBR sensor according to claim 1, characterized in that: It also includes a waterproof tape layer, which can wrap the upper membrane layer and the lower membrane layer.

7. The SBR sensor according to claim 1, characterized in that: The first terminal is electrically connected to the second terminal through a wire. The first terminal is coated with hot melt adhesive, and the wire is sheathed with a PVC sleeve.

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