CN211592328U

CN211592328U - Foam structure for automobile seat and automobile seat

Info

Publication number: CN211592328U
Application number: CN201922238838.5U
Authority: CN
Inventors: 徐革伟; 张海涛; 石建磊
Original assignee: Hebei Anwen Auto Parts Co ltd
Current assignee: Hebei Anwen Auto Parts Co ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-09-29
Anticipated expiration: 2029-12-13

Abstract

The application discloses a foam structure for an automobile seat and the automobile seat, wherein the foam structure is used for supporting the automobile seat, and the automobile seat is provided with a seating surface; at least 1 groove is formed in one side, far away from the seating surface of the automobile seat, of the foam structure; a supporting piece is integrally formed in the foam structure in a foaming mode; the supporting piece is provided with an embedded end foamed in the foam structure and an exposed end extending into the groove; one side of the exposed end, which is far away from the seating surface of the automobile seat, is detachably provided with a pressure sensor assembly positioned in the groove; according to the technical scheme, the supporting piece is arranged in the foam structure, so that the pressure sensor can be mounted without depending on the shape of the skeleton structure of the automobile seat or whether the skeleton structure of the automobile seat exists, and the convenience in mounting the pressure sensor is improved.

Description

Foam structure for automobile seat and automobile seat

Technical Field

The present disclosure generally relates to the technical field of automobile seats, and in particular relates to a foam structure for a seat and an automobile seat.

Background

Currently, a pressure sensor is usually fixed on an integral framework structure of a seat sponge cushion body, and the pressure sensor receives a pressure signal to realize signal output through the stressed deformation of the sponge cushion body. Therefore, the installation of the pressure sensor is generally required to adapt to the overall skeleton structure of the seat; different types of seat frames need to be equipped with different mounting manners.

In addition, for a seat without a separate supporting framework in the rear row of the automobile, the pressure sensor cannot be installed before the seat leaves the factory, and can only be installed on the bearing surface on which the seat is to be placed when the seat is installed, so that the installation step of the seat is complicated.

Disclosure of Invention

In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a foam structure for a vehicle seat and a vehicle seat.

In a first aspect, the present application provides a foam structure for a vehicle seat for supporting a vehicle seat, the vehicle seat having a seating surface; at least 1 groove is formed in one side, far away from the sitting surface, of the foam structure; a supporting piece is integrally formed in the foam structure in a foaming mode; the supporting piece is provided with an embedded end foamed in the foam structure and an exposed end extending into the groove; and one side of the exposed end, which is far away from the seating surface, is detachably provided with a pressure sensor assembly positioned in the groove.

According to the technical scheme provided by the embodiment of the application, the pressure sensor assembly comprises a bearing plate and a pressure sensor positioned between the bearing plate and the top surface of the groove.

According to the technical scheme provided by the embodiment of the application, the pressure sensor is a film pressure sensor or a mechanical pressure sensor. .

According to the technical scheme provided by the embodiment of the application, the bearing plate is fixed at the exposed end in any one mode of hanging buckle connection, screw connection or buckle connection.

According to the technical scheme provided by the embodiment of the application, the exposed end of the supporting piece is provided with a flat mounting part; the bearing plate is provided with a first mounting hole; a second mounting hole is formed in the mounting part corresponding to the first mounting hole; the bearing plate is fixedly connected with the supporting piece through a buckle which sequentially penetrates through the first mounting hole and the second mounting hole.

According to the technical scheme provided by the embodiment of the application, the supporting piece is a metal piece and/or a plastic piece.

According to the technical scheme provided by the embodiment of the application, the number of the supporting pieces is more than or equal to 2; and the plane of more than 2 support pieces is parallel to the seating surface of the automobile seat.

According to the technical scheme provided by the embodiment of the application, one side of the bearing plate, which is far away from the pressure sensor assembly, is provided with a damping layer.

According to the technical scheme that this application embodiment provided, the damping layer is at least one in non-woven fabrics, sponge layer, plastic layer and the fabric.

In a second aspect, the application provides an automobile seat, which is characterized in that at least one foam structure for any one of the automobile seats is arranged on the automobile seat.

The above technical scheme of this application, through providing a foam structure for car seat, one side that the seat riding surface was kept away from to this structure is seted up flutedly, integrative foam molding has support piece in this structure, this support piece is equipped with in the recess and exposes the end, pressure sensor can install at this end that exposes, thereby make, after the human body sits on the seat, foam structure receives the extrusion deformation and sinks, support piece and the pressure sensor subassembly of fixing on support piece's the end that exposes are along with sinking, after the loading board contact of pressure sensor subassembly leads the skeleton of seat or the installation end basin of seat, pressure switch's loading board position is confirmed, the foam that is located the pressure sensor top conducts pressure to pressure sensor's upper portion, make pressure sensor receive the extrusion, thereby the activation switches on this pressure sensor's switch point, realize the conduction of pressure. Therefore, no matter the automobile seat with the framework structure or the automobile seat without the framework structure directly mounted on the bottom basin, the pressure sensor can be mounted without depending on the shape of the framework structure of the automobile seat or whether the framework structure of the seat exists or not by arranging the support piece in the foam structure, and the convenience for mounting the pressure sensor is improved.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 is a schematic vertical sectional view of a vehicle seat to which embodiment 1 of the present application is applied;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

fig. 3 is a schematic vertical sectional view of a vehicle seat to which embodiment 1 of the present application is applied;

FIGS. 4-6 are schematic structural views of a pressure sensor of the present application;

fig. 7-9 are schematic horizontal sectional structural views of different embodiments of the foam structure in example 1 of the present application.

Reference numbers in the figures:

1. a car seat; 2. a foam structure; 3. a seating surface; 4. a groove; 5. a support member; 5-1, embedding end; 5-2, exposing the end; 6. a pressure sensor assembly; 7. a carrier plate; 8. a pressure sensor; 9. an active layer; 10. a pressure-bearing layer; 15. a seat cover; 11. hanging parts; 12. an installation part; 13. buckling; 14. a damping layer; 16. a bottom basin; 17. a sensing film; 18. a first electrode; 19. a second electrode; 20. a protrusion; 21. a top cover; 22. an insulating layer.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example 1

Please refer to fig. 1 to 3, which are schematic structural views of an automobile seat 1 applied in the present embodiment; wherein the foam structure 2 is used for supporting a vehicle seat 1, the vehicle seat 1 having a seating surface 3; a groove 4 is formed in one side, far away from a seating surface 3 of the automobile seat 1, of the foam structure 2; a supporting piece 5 is integrally formed in the foam structure 2 in a foaming manner; the supporting piece 5 is provided with an embedded end 5-1 foamed in the foam structure 2 and an exposed end 5-2 extending into the groove 4; and a pressure sensor assembly 6 positioned in the groove is detachably arranged on one side of the exposed end, which is far away from the seating surface of the automobile seat.

Wherein the pressure sensor assembly 6 comprises a carrier plate 7, a pressure sensor 8 located between the carrier plate 7 and the top surface of the recess 4; the top surface of the groove 4 means an inner surface perpendicular to the depth direction of the groove 4;

wherein, the embodiment of the pressure sensor 8 optionally adopts the following mode:

1. the pressure sensor 8 is a film pressure sensor, as shown in fig. 4, the pressure sensor 8 sequentially comprises a sensing film 17, an activation layer 9 and a pressure bearing layer 10 on the bearing plate 7; the sensing film is made of, for example, SBR, wherein, as shown in fig. 5, the sensing film 17 includes, for example, a first electrode 18 and a second electrode 19 fixed above the first electrode 18 by a hollowed-out insulating layer 22; wherein, the activation layer 9 is provided with a bump 20 corresponding to the sensing position of the first electrode 19 and the second electrode 19; when the foam structure 2 is subjected to downward extrusion force, the pressure bearing layer 10 transmits the pressure to the activation layer 9, and the protrusions 20 on the activation layer 9 conduct the sensing positions of the first electrode 18 and the second electrode 19;

wherein the pressure bearing layer 10 and the activation layer 9 can be fixed on the carrier plate 7, for example, by means of a snap 13.

2. The pressure sensor 8 is a mechanical pressure sensor, as shown in fig. 6, and includes a first electrode 18, a top cover 21, and a second electrode 19. The first electrode 18 is integrated on the carrier 7, and the trigger portion of the first electrode 18 is exposed on the upper surface of the carrier 7. The top cover 21 is movably matched with the bearing plate 7, the second electrode 19 is arranged on the bearing plate 7 or the top cover 21, the second electrode 19 is separated from the trigger part of the first electrode 18, a bulge 22 for pressing the trigger part of the second electrode 19 is arranged on the top cover 21, and when the first electrode 18 and the second electrode 19 are pressed, the first electrode 18 and the second electrode 19 are in contact triggering. After the pressure sensor 8 is pressed by the foam structure 2, the top cover 21 presses the second electrode 19 to contact with the first electrode 18, so that the human body pressure sensor is conducted.

In other embodiments, the pressure sensor may be any other structure capable of sensing pressure.

The pressure sensor module 6 includes a connector and a lead wire for connecting an external circuit in addition to the above-described substrate structure; it will be appreciated by those skilled in the art that in order to achieve the load bearing effect of the support 5, the pressure sensor assembly 6, except for the connectors and the main body portion of the wires, such as the carrier plate 7, the activation layer 9 and the bearing layer 10, is within the recess 4, not beyond the underside of the foam structure 2, i.e. the side remote from the seating surface 3 of the car seat 1.

In other embodiments, the pressure sensor assembly 6 may take other embodiments.

The foam structure 6 is a basic component of the automobile seat 1 and is used for forming the outline of the seat, and a seat surface sleeve 15 sleeved outside the foam structure 6 is further arranged on the seating surface of the automobile seat 1; when the seating surface 3 is pressed from top to bottom, as shown in fig. 2, the lower part of the seat is seated on the bottom basin 16, the support member 5 stops moving downwards due to contact with the bottom basin 16, so that only a small downward stroke is provided, and the main body of the foam structure 2 has a large stroke, when the support member 5 is held by the bottom basin 16, the bottom surface of the groove 4 is displaced downwards relative to the support member 5, so that the support member 5 functions as a carrier for the pressure sensor assembly 6, and the pressure-bearing layer 10 transmits the downward pressure to the active layer 9, so that the sensing film 17 is conducted.

In the present embodiment, the support 5 is optionally implemented in the following manner:

1. bent metal or plastic pieces, such as wire or plastic rods; as shown in fig. 8, the head and tail ends of the continuously bent metal rod may be connected by a plastic buckle.

2. A whole section of punched metal rod or an integrally injection-molded plastic rod;

3. several sections of metal rods or plastic rods are spliced end to end;

4. a monolithic metal or plastic plate.

In any way, the metal wire or the metal rod is provided with at least 2 mounting points at the mounting position of the pressure sensor assembly 6; preferably, in order to make the structure of the wire or rod more stable, the wire is preferably formed into a closed loop, as shown in fig. 4.

Wherein the number of supports 5 optionally follows:

1. preferably 1 piece, i.e. in the manner shown in fig. 7 and 8; the 1 metal piece is only required to be positioned once in the foaming process of the foam structure 2, and the mounting points on the metal piece can be kept consistent.

2. For example, as shown in fig. 9, it may be 2 pieces, and in this case, two supporting members 5 may provide more supporting points for the pressure sensor assembly 6.

3. 3 or more. When the number of the supporting pieces 5 is greater than or equal to 2, the plane where all the supporting pieces 5 are located is preferably parallel to the seating surface 3 of the car seat 1; this ensures that the mounting points of the support 5 are on the same mounting surface.

Wherein, the connection mode of the supporting piece 5 and the pressure sensor assembly 6 can be selected from the following modes:

1. by adopting the manner of hanging and buckling connection, as shown in fig. 1, a hanging member 11, such as the hanging member 11, is fixed on the bearing plate 7, and the hanging member 11 can be clamped on the metal wire or the metal rod.

2. A buckling mode is adopted, and a flat mounting part 12 is required to be arranged on the supporting part 5; as shown in fig. 4, the mounting portion 12 is a plastic block or a metal plate welded on the support member 5, and a second mounting hole is formed on the metal plate or the plastic block; because the traditional pressure sensor, such as the existing SBR sheet, is provided with a first mounting hole; so that it can be fixedly connected by means of the snap 13 passing through the first and second mounting holes in sequence.

In other embodiments, the mounting portion 13 may be integrally formed with the support member.

3. And other fixable connecting modes such as screws and bolts are adopted.

When the supporting member 5 is a metal plate or a plastic plate, the bearing plate 7 is preferably fixed on the supporting member 5 by using a fastening method such as a snap, a screw, a bolt, etc.

The number of the grooves 4 is not limited, and can be 1, or 2 or more, wherein 1 pressure sensor assembly is arranged in each

groove

4, and 1 or more supporting members 5 can be arranged in each groove 4; it is also possible that adjacent grooves share one support 5.

The shape of the supporting member 5 is not limited, and is preferably circular as shown in fig. 4 and 6, and may be a profile structure formed by continuously bending as shown in fig. 5, or may be a single rod spanning the groove in other embodiments.

Preferably, the carrier plate 7 is provided with a damping layer 14 on the side facing away from the pressure sensor assembly 6. The damping layer 14 is at least one of a non-woven fabric, a sponge layer, a plastic layer and a fabric. Damping layer 14 may be used to reduce wear of pressure sensor assembly 6 and reduce frictional noise between pressure sensor assembly 6 and other structural components.

Example 2

The embodiment provides a car seat, be equipped with any one of the foam structure for car seat in embodiment 1 on car seat 1.

The groove 4, the supporting piece 5 and the pressure sensor assembly 6 can be arranged at 1 part, 2 parts or a plurality of parts on one of the automobile seats;

the foam structure can be used for a seat of a front seat, a seat of a rear seat and a front seat and a rear seat of an automobile.

By adopting the technical scheme of the embodiment 1, the pressure sensor can be installed on the automobile seat before the seat leaves a factory no matter whether the automobile seat is provided with a supporting framework structure or not, so that the secondary installation of a pressure sensor assembly is avoided; and different seat framework structures do not need to be considered any more to match with a proper pressure sensor assembly mounting structure, so that convenience is brought to mounting and design.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. The foam structure for the automobile seat is used for supporting the automobile seat (1), and the automobile seat (1) is provided with a seating surface (3); the bicycle is characterized in that at least 1 groove (4) is formed in one side, far away from the sitting surface (3), of the foam structure (2); a supporting piece (5) is integrally formed in the foam structure (2) in a foaming manner; the supporting piece (5) is provided with an embedded end (5-1) foamed in the foam structure (2) and an exposed end (5-2) extending into the groove (4); and a pressure sensor assembly (6) positioned in the groove is detachably arranged on one side of the exposed end (5-2) far away from the seating surface (3).

2. The foam structure for automobile seats according to claim 1, wherein the pressure sensor assembly (6) comprises a carrier plate (7), a pressure sensor (8) located between the carrier plate (7) and the top surface of the recess (4).

3. The foam structure for automobile seats according to claim 2, wherein the pressure sensor (8) is a film pressure sensor or a mechanical pressure sensor.

4. The foam structure for the automobile seat as claimed in claim 2, wherein the carrier plate (7) is fixed on the exposed end (5-2) by any one of a hanging buckle connection, a screw connection or a snap connection.

5. The foam structure for automobile seats according to claim 2, wherein the exposed end (5-2) of the support member (5) has a flat mounting portion (12); the bearing plate (7) is provided with a first mounting hole; a second mounting hole is formed in the mounting part (12) corresponding to the first mounting hole; the bearing plate (7) is fixedly connected with the supporting piece (5) through a buckle (13) which sequentially penetrates through the first mounting hole and the second mounting hole.

6. The foam structure for automobile seats according to any one of claims 1 to 5, wherein the support member (5) is a metal member and/or a plastic member.

7. The foam structure for automobile seats according to any one of claims 1 to 5, wherein the number of the support members (5) is 2 or more.

8. The foam structure for automobile seats according to any one of claims 2 to 5, characterized in that a damping layer (14) is provided on the side of the carrier plate (7) remote from the pressure sensor assembly (6).

9. The foam structure for vehicle seats according to claim 8, wherein the damping layer (14) is at least one of a non-woven fabric, a sponge layer, a plastic layer and a woven fabric.

10. A vehicle seat, characterized in that the vehicle seat (1) is provided with at least one foam structure for vehicle seats according to any one of claims 1 to 9.