CN211001193U - Automobile seat occupancy sensor - Google Patents

Abstract

The utility model discloses a car seat occupies sensor, including supporting component and switch module, the supporting component includes support and first boss, and the switch module includes the switch body, elastic component and the slider resets, and the slider includes movable casing, driven casing, spacing casing and second boss, through the motion of movable casing, and then makes the elastic component that resets deformation to drive driven casing and carry out vertical motion, with the trigger switch body. This application replaces the tradition through mechanical structure's sensor and is put through setting up two carbon film resistances, with signal transmission to car seat's controller. And then avoided exerting the heavy object suddenly and lead to receiving great impact of carbon film resistance, the easy damaged problem appears, simultaneously, also avoided when the user sits in the seat for a long time, carbon film resistance is in long-term on-state, the easy problem that generates heat and burns out appears to reduce and the frequency of maintenance change.

Description

Automobile seat occupancy sensor

Technical Field

The utility model relates to a sensor technology field especially relates to a car seat occupies sensor.

Background

Currently, the car seat sensor is a thin film type contact sensor, the contacts of the sensor are uniformly distributed on the stressed surface of the seat, and a trigger signal is generated when the seat is stressed by external pressure. The passenger sensing system applied to the automobile seat, such as a safety belt alarm sensor, a taxi automatic fare register, an air bag sensing device and the driver leaving the seat, for example, can sense whether a person is on the seat or not, and if the person is not on the seat, the air bag cannot be opened. 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, the hardness and the tightness of the skin of the automobile seat.

However, in the current stage, the car seat sensor is mainly connected through two carbon film resistors in a built-in circuit, so as to transmit signals to a controller of the car seat, such as a safety belt alarm sensor, a taxi automatic fare register and an air bag sensor, but the resistance value of the carbon film resistor is unstable, and when a heavy object is suddenly applied to the seat, the carbon film resistor receives large impact and is easy to damage; when a user sits on the seat for a long time, the carbon film resistor is in a long-term connection state and may be burnt out, and therefore the replacement frequency is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the weak point among the prior art, provide a car seat occupy-place sensor that can replace carbon film resistance to carry out signal transmission.

The purpose of the utility model is realized through the following technical scheme:

a car seat occupancy sensor comprising:

the support assembly comprises a support and a first boss, a spacing groove is formed in the support, the first boss is arranged in the spacing groove, and a conducting hole is formed in the first boss; and

the switch assembly comprises a switch body, a reset elastic piece and a sliding piece, wherein the sliding piece comprises a movable shell, a driven shell, a limiting shell and a second boss, the switch body is arranged on the limiting shell, the movable shell is arranged in the avoiding groove, a mounting groove is formed in the movable shell, the driven shell is arranged in the conducting hole, a groove is formed in the driven shell, the reset elastic piece is arranged in the groove and connected with the limiting shell, one side face of the limiting shell is arranged in the groove, the other side face of the limiting shell is exposed outside the groove, and the second boss is arranged in the mounting groove and connected with the driven shell.

In one embodiment, the switch assembly further includes a connector and a connection harness, the connection harness is connected to the switch body, and the connector is disposed on the connection harness.

In one embodiment, the switch assembly further comprises a protective sleeve disposed over the connection harness.

In one embodiment, the return elastic member is a spring.

In one embodiment, the supporting assembly further includes a buckling block, the switch assembly further includes a propping block, the buckling block is disposed in the avoiding groove, the propping block is disposed on the movable housing, and the buckling block is connected with the propping block.

In one embodiment, the support assembly further includes two clamping blocks, and the two clamping blocks are respectively disposed on the bracket.

In one embodiment, the support assembly further includes two reinforcing ribs, and the two reinforcing ribs are respectively arranged on the two clamping blocks in a one-to-one correspondence manner. In one of the embodiments, the first and second electrodes are,

in one embodiment, the switch assembly further includes a contact protrusion disposed in the groove, and the contact protrusion is connected to the switch body.

In one embodiment, the bracket is provided with a plurality of clearance grooves, and a space is respectively arranged between the clearance grooves.

In one embodiment, the vias are circular vias.

The utility model discloses compare in prior art's advantage and beneficial effect as follows:

the utility model relates to a car seat occupies sensor, this application replace the tradition through setting up two carbon film resistance switch-ons through mechanical structure's sensor, with signal transmission to car seat's controller. And then avoided exerting the heavy object suddenly and lead to receiving great impact of carbon film resistance, the easy damaged problem appears, simultaneously, also avoided when the user sits in the seat for a long time, carbon film resistance is in long-term on-state, the easy problem that generates heat and burns out appears to reduce and the frequency of maintenance change.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of an automobile seat occupancy sensor according to an embodiment of the present invention;

FIG. 2 is an internal schematic view of the vehicle seat occupancy sensor shown in FIG. 1;

FIG. 3 is an internal schematic view of the vehicle seat occupancy sensor shown in FIG. 1 from another perspective;

fig. 4 is a schematic structural diagram of a movable housing according to an embodiment of the present invention.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, a vehicle seat occupancy sensor 10 includes: the support assembly 100 is used for installing the switch assembly 200, and the switch assembly 200 is used for transmitting signals to a controller of the automobile seat.

Referring to fig. 1, the supporting assembly 100 includes a bracket 110 and a first boss 120, referring to fig. 2, the bracket 110 is provided with a avoiding groove 111, the first boss 120 is disposed in the avoiding groove 111, and the first boss 120 is provided with a via hole 121; referring to fig. 3, the switch assembly 200 includes a switch body 210, a reset elastic member 220 and a sliding member 230, the sliding member 230 includes a movable housing 231, a driven housing 232, a limit housing 233 and a second boss 234, the switch body 231 is disposed on the limit housing 233, the movable housing 231 is disposed in the avoiding groove 111, the movable housing 231 is provided with an installation groove 231a, the driven housing 232 is disposed in the conducting hole 121, the driven housing 232 is provided with a groove 232a, the reset elastic member 220 is disposed in the groove 232a, the reset elastic member 220 is connected to the limit housing 233, one side surface of the limit housing 233 is disposed in the groove 232a, the other side surface of the limit housing 233 is exposed out of the groove 232a, the second boss 234 is disposed in the installation groove 231a, and the second boss 234 is connected to the driven housing 232. Referring to fig. 2, the via hole 121 is a circular via hole. Referring to fig. 3, more specifically, the elastic restoring element 220 is a spring.

It should be noted that, in order to better describe the above working process, please refer to fig. 3, further, in an embodiment, the switch assembly 200 further includes a contact protrusion 280, the contact protrusion 280 is disposed in the groove 232a, and the contact protrusion 280 is connected with the switch body 210. The working process is as follows: when a user sits on the car seat, the movable shell 231 moves towards the direction close to the driven shell 232, then the second boss 234 arranged on the movable shell 231 pushes the driven shell 232, so that the driven shell 232 vertically moves in the through hole 121, and further the reset elastic piece 220 arranged in the groove 232a deforms, and the contact protrusion 280 triggers the switch body 210 to work, so that a signal is transmitted to the car seat microcontroller outside. When the user leaves the car seat, the restoring elastic member 220 is restored to the original state by the elastic force generated by the deformation, so that the sensor is in the off state. Thus, this application replaces the tradition through setting up two carbon film resistances through the sensor of mechanical structure and switches on, with signal transmission to car seat's controller. And then avoided exerting the heavy object suddenly and lead to receiving great impact of carbon film resistance, the easy damaged problem appears, simultaneously, also avoided when the user sits in the seat for a long time, carbon film resistance is in long-term on-state, the easy problem that generates heat and burns out appears to reduce and the frequency of maintenance change.

Referring to fig. 2 and 3, in one embodiment, the switch assembly 200 further includes a connector 240 and a connection harness 250, the connection harness 250 is connected to the switch body 210, and the connector 240 is disposed on the connection harness 250. It should be noted that the connector 240 is used for connecting an external controller of the car seat to transmit a signal to the controller of the car seat.

Referring to fig. 3, further, in an embodiment, the switch assembly 200 further includes a protective sleeve 260, and the protective sleeve 260 is disposed on the connection harness 250. It should be noted that the protective sleeve 260 plays a role of protecting the connection harness 250, so as to prevent the connection harness 250 from being worn and short-circuited.

Referring to fig. 2 and 4, in an embodiment, the supporting assembly 100 further includes a locking block 130, the switch assembly 200 further includes a supporting block 270, the locking block 130 is disposed in the avoiding groove 111, the supporting block 270 is disposed on the movable housing 231, and the locking block 130 is connected to the supporting block 270. It should be noted that, this application is provided with 6 buckle piece 130 and 6 and pushes up holding block 270 altogether, and the staff only needs to correspond 6 buckle piece 130 and 6 and pushes up holding block 270 and lock when the installation, alright install movable shell 231 to support 110 on, very convenient.

Referring to fig. 1, further, in an embodiment, the supporting assembly 100 further includes two clamping blocks 140, and the two clamping blocks 140 are respectively disposed on the bracket 110. It should be noted that the two clamping blocks 140 are used for clamping and fixing the connecting wire harness 250, so as to avoid the connecting wire harness 250 from being scattered.

Referring to fig. 1, further, in an embodiment, the supporting assembly 100 further includes two reinforcing ribs 150, and the two reinforcing ribs 150 are respectively disposed on the two clamping blocks 140 in a one-to-one correspondence manner. The two reinforcing ribs 150 serve to reinforce the mechanical strength of the two clamping blocks 140.

Referring to fig. 1, in one embodiment, the bracket 110 is provided with a plurality of clearance grooves 112, and a space is respectively disposed between the clearance grooves 112. By providing a plurality of clearance grooves 112, the input cost of the raw material can be reduced, and the overall weight of the vehicle seat sensor can be reduced.

Compared with the prior art, the utility model has the advantages of it is following:

above-mentioned car seat occupies sensor 10 moves through movable housing 231, and then makes the elastic component 220 that resets deformation to drive driven housing 232 and carry out vertical motion, with trigger switch body 210. This application replaces the tradition through mechanical structure's sensor and is put through setting up two carbon film resistances, with signal transmission to car seat's controller. And then avoided exerting the heavy object suddenly and lead to receiving great impact of carbon film resistance, the easy damaged problem appears, simultaneously, also avoided when the user sits in the seat for a long time, carbon film resistance is in long-term on-state, the easy problem that generates heat and burns out appears to reduce and the frequency of maintenance change.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. An automobile seat occupancy sensor, comprising:

the support assembly comprises a support and a first boss, a spacing groove is formed in the support, the first boss is arranged in the spacing groove, and a conducting hole is formed in the first boss; and

the switch assembly comprises a switch body, a reset elastic piece and a sliding piece, wherein the sliding piece comprises a movable shell, a driven shell, a limiting shell and a second boss, the switch body is arranged on the limiting shell, the movable shell is arranged in the avoiding groove, a mounting groove is formed in the movable shell, the driven shell is arranged in the conducting hole, a groove is formed in the driven shell, the reset elastic piece is arranged in the groove and connected with the limiting shell, one side face of the limiting shell is arranged in the groove, the other side face of the limiting shell is exposed outside the groove, and the second boss is arranged in the mounting groove and connected with the driven shell.

2. The car seat occupancy sensor of claim 1, wherein the switch assembly further comprises a connector and a connection harness, the connection harness being connected to the switch body, the connector being disposed on the connection harness.

3. The vehicle seat occupancy sensor of claim 2, wherein the switch assembly further comprises a protective sleeve disposed over the connection harness.

4. The car seat occupancy sensor of claim 1, wherein the return spring is a spring.

5. The car seat occupancy sensor of claim 1, wherein the support assembly further comprises a snap-in block, the switch assembly further comprises a propping block, the snap-in block is disposed in the clearance groove, the propping block is disposed on the movable housing, and the snap-in block is connected with the propping block.

6. The car seat occupancy sensor of claim 1, wherein the support assembly further comprises two clamping blocks, the two clamping blocks being disposed on the bracket, respectively.

7. The vehicle seat occupancy sensor of claim 6, wherein the support assembly further comprises two reinforcing ribs, and the two reinforcing ribs are respectively disposed on the two clamping blocks in a one-to-one correspondence.

8. The car seat occupancy sensor of claim 1, wherein the switch assembly further comprises a contact protrusion disposed within the recess, the contact protrusion being connected with the switch body.

9. The vehicle seat occupancy sensor of claim 1, wherein the bracket defines a plurality of clearance slots, and a space is defined between each of the clearance slots.

10. The car seat occupancy sensor of claim 1, wherein the via is a circular via.

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