Air pump sound insulation and shock absorption structure for automobile seat

Abstract

The utility model discloses an air pump sound insulation shock absorption structure for an automobile seat, which comprises a mute shell and a PUR shell, the mute shell comprises a mute shell upper shell and a mute shell lower shell, the mute shell upper shell and the mute shell lower shell are mutually clamped to wrap an air pump in the mute shell, the PUR shell is arranged outside the mute shell, and the PUR shell is connected with the air pump. The PUR shell comprises a PUR upper shell and a PUR lower shell, the PUR upper shell and the PUR lower shell are connected through a rubber sleeve, the mute shell is provided with a first wire harness avoiding hole, the PUR shell is provided with a second wire harness avoiding hole, the PUR shell is provided with a staple bolt, and the air pump provided with the mute shell and the PUR shell is connected to the seat framework through the staple bolt. The silencing air pump comprises the silencing shell and the PUR shell, two layers of shells are arranged outside the air pump, so that part of noise generated by the air pump can be isolated, meanwhile, due to the fact that a gap is reserved between the air pump and the silencing shell, vibration transmission is reduced, and the noise of the air pump is further reduced.

Description

Technical Field

[0001] The utility model belongs to the field of automobile seats, and in particular relates to an air pump sound insulation and shock absorption structure for automobile seats. Background Art

[0002] When the driver and passengers use the car for long distances or drive for a long time, they will not only feel mentally tired, but also suffer from muscle stiffness and soreness due to maintaining the same posture for a long time. In order to solve this problem, massage air bags are installed on the car seats to massage the backs or legs of the driver and passengers to relieve fatigue. The back massage air bags and / or leg massage air bags are provided with air source by air pumps, so that the back massage air bags and / or leg massage air bags can squeeze the corresponding parts of the driver and passengers by inflating or deflating the air bags, thereby achieving the massage effect.

[0003] The existing air pump is directly installed on the car seat frame through pins, so the air pump will generate a lot of noise, which can reach 50dBA. There are two reasons why the air pump generates noise. One is the noise generated by the air pump itself, and the other is the connection between the air pump shell and the seat frame. During the operation of the air pump, vibration is transmitted, which causes the noise to increase through resonance. Therefore, how to ensure the normal operation of the air pump while reducing the noise generated by the air pump is a technical problem that technical personnel in this field urgently need to solve. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned problem and to provide a sound insulation and shock absorption structure for an air pump for a car seat. The sound insulation and shock absorption structure includes a silent shell and a PUR shell. By arranging two layers of shells on the outside of the air pump, part of the noise generated by the air pump itself can be isolated. At the same time, since a gap is left between the air pump and the silent shell, the transmission of vibration is reduced, and the noise of the air pump is further reduced.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a sound insulation and shock absorption structure of an air pump for a car seat, comprising a silent shell and a PUR shell, the silent shell comprising a silent shell upper shell and a silent shell lower shell, the silent shell upper shell and the silent shell lower shell are mutually clamped to wrap the air pump in the silent shell, a PUR shell is arranged outside the silent shell, the PUR shell comprises a PUR upper shell and a PUR lower shell, the PUR upper shell and the PUR lower shell are connected by a rubber sleeve, the silent shell is provided with a first wiring harness avoidance hole, the PUR shell is provided with a second wiring harness avoidance hole, the PUR shell is provided with staples, and the air pump installed with the silent shell and the PUR shell is connected to the seat frame by staples.

[0006] As a further optimization, the present application also includes a fixed rubber sleeve, which is arranged between the air pump and the silent shell, and is used to further fix the connection between the upper shell and the lower shell of the silent shell, while increasing the gap between the air pump and the silent shell.

[0007] As a further optimization, the fixed rubber sleeve includes an inner ring and an outer ring, a plurality of convex strips are evenly distributed on the inner wall of the inner ring, the fixed rubber sleeve is connected to the air pump through the inner ring, the inner ring is connected to the outer ring through a plurality of connecting columns, a wiring harness fixing seat is provided on the outer wall of the inner ring, a third wiring harness avoidance hole is provided on the outer ring, the upper shell of the silent shell and the lower shell of the silent shell are further connected through the outer ring, and a connecting column avoidance hole is provided at the position of the silent shell relative to the connecting column.

[0008] As a further optimization, at least one foam is provided between the air pump and the silent housing.

[0009] As a further optimization, the silent housing is a POM plastic housing conforming to the air pump housing.

[0010] Advantages and beneficial effects of the utility model

[0011] 1. The utility model is provided with a silent shell on the outside of the air pump, and the silent shell is made of a POM plastic shell. In order to prevent the air pump from directly contacting the silent shell, the application is provided with foam on the top of the air pump, around the top of the air pump, around the bottom of the air pump and the bottom of the air pump, and a fixed rubber sleeve is added between the connection between the upper shell of the silent shell and the lower shell of the silent shell and the air pump. The connection between the upper shell of the silent shell and the lower shell of the silent shell can be further fixed by the fixed rubber sleeve, and at the same time, the gap between the air pump and the silent shell can be increased, thereby reducing the transmission of vibration. The noise of the air pump provided with the silent shell and the fixed rubber sleeve can be reduced to 41dBA.

[0012] 2. The utility model is provided with a PUR shell outside the silent shell. The PUR shell is made of polyurethane foam material, which can further isolate the noise of the air pump and reduce the transmission of vibration. The noise of the air pump equipped with the silent shell and the PUR shell is less than 38dBA. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the utility model;

[0015] Figure 2 It is an exploded view of the overall structure provided by the embodiment of the utility model;

[0016] Figure 3 It is an exploded view of the air pump assembly with a silent housing and a PUR housing provided by the utility model;

[0017] Figure 4 It is a schematic diagram of an air pump assembly with a silent housing provided by the utility model;

[0018] Figure 5 It is a schematic diagram of a fixed rubber sleeve provided in an embodiment of the utility model;

[0019] Figure 6 It is a schematic diagram of the structure of an air pump provided with foam provided in an embodiment of the utility model;

[0020] Figure numerals: silent housing 1, silent housing upper shell 11, silent housing lower shell 12, connecting column avoidance hole 13, PUR housing 2, PUR upper shell 21, PUR lower shell 22, air pump 3, rubber sleeve 4, foam 5, fixed rubber sleeve 6, inner ring 61, convex strip 611, outer ring 62, connecting column 63, wiring harness fixing seat 64 and air pump assembly with silent housing 7. DETAILED DESCRIPTION

[0021] The terms "first", "second", "third", "fourth", etc. in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein.

[0022] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be noted that, in the description of the present invention, the terms "upper", "lower", "left", "right", "inside", "outside", "front", "back", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0023] like Figure 1-Figure 3As shown, a sound insulation and shock absorption structure of an air pump for a car seat comprises a silent shell 1 and a PUR shell 2. The silent shell 1 is a shell made of POM plastic material. The silent shell 1 can play a certain noise reduction role. In order to facilitate the installation of the air pump 3 in the silent shell 1, the silent shell 1 is divided into a silent shell upper shell 11 and a silent shell lower shell 12. The air pump 3 is wrapped in the silent shell 1 by snapping between the silent shell upper shell 11 and the silent shell lower shell 12. In order to facilitate the connection of the wiring harness of the air pump 3 with the outside, a first wiring harness avoidance hole is provided on the silent shell 1. In order to prevent the contact area between the silent shell 1 and the air pump 3 from being too large and increasing the transmission of vibration, at least one foam 5 is provided on the air pump 3 so that there is a gap between the air pump 3 and the silent shell 1 to reduce the contact area. Figure 6 As shown, in this embodiment, foam 5 is provided on the top of the air pump 3, around the top of the air pump, around the bottom of the air pump and the bottom of the air pump.

[0024] In order to further connect the upper shell 11 of the silent housing and the lower shell 12 of the silent housing and increase the gap between the air pump 3 and the silent housing 1, the present application provides a fixed rubber sleeve 6 between the air pump 3 and the silent housing 1, see Figure 2 and Figure 5 The fixed rubber sleeve 6 includes an inner ring 61 and an outer ring 62. The fixed rubber sleeve 6 is connected to the air pump 3 through the inner ring 61, and is connected to the upper shell 11 and the lower shell 12 of the silent shell through the outer ring 62. In order to reduce the contact area between the inner ring 61 and the air pump 3 and to make a gap between the inner ring 61 and the air pump 3, in this embodiment, a plurality of convex strips 611 are evenly distributed on the inner wall of the inner ring 61. The inner ring 61 is connected to the outer ring 62 through a plurality of connecting columns 63. The connecting columns 63, on the one hand, play the role of connecting and supporting the outer ring 62, and on the other hand, can increase the gap between the inner ring 61 and the outer ring 62, thereby reducing the contact area between the air pump 3 and the lower shell 12. The vibration transmitted to the silent shell 1 through the fixed rubber sleeve 6 plays a role of buffering and shock absorption. A wire harness fixing seat 64 is provided on the outer wall of the inner ring 61, and a third wire harness avoidance hole is provided on the outer ring 62, so that the wire harness passes through the wire harness fixing seat 64 and then passes through the third wire harness avoidance hole to fix the rubber sleeve 6. Since the fixed rubber sleeve 6 is arranged between the air pump 3 and the silent shell 1, a connecting column avoidance hole 13 is provided at the position of the silent shell 1 relative to the connecting column 63. By arranging a silent shell 1 and a fixed rubber sleeve 6 on the outside of the air pump 3 to form an air pump assembly 7 with a silent shell, the air pump noise can be reduced to 41dBA.

[0025] In order to further reduce the noise generated by the air pump 3, in this embodiment, a PUR shell 2 is provided on the outside of the air pump assembly 7 with a silent shell. The PUR shell 2 is made of polyurethane foam. The polyurethane foam can further reduce the noise, so that the noise generated by the air pump 3 reaches <38dBA. Figure 1 and3 As shown, in order to facilitate the installation of the air pump assembly 7 with a silent shell in the PUR shell 2, the PUR shell 2 is divided into a PUR upper shell 21 and a PUR lower shell 22 in this embodiment, and the PUR upper shell 21 and the PUR lower shell 22 are connected by a rubber sleeve 4. In order to facilitate the connection of the wiring harness of the air pump 3 with the outside, a second wiring harness avoidance hole is provided on the PUR shell 2. In order to facilitate the installation of the assembled air pump on the seat frame, in this embodiment, staples are connected to the PUR upper shell 21 and the PUR lower shell 22 by cable ties, and the assembled air pump is connected to the seat frame by staples.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the utility model, rather than to limit them. Although the embodiments of the utility model are described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the embodiments of the utility model.

Claims

1. A sound insulation and shock absorption structure of an air pump for a car seat, characterized in that: The invention comprises a silent shell (1) and a PUR shell (2), wherein the silent shell (1) comprises a silent shell upper shell (11) and a silent shell lower shell (12), wherein the silent shell upper shell (11) and the silent shell lower shell (12) are mutually engaged to wrap an air pump (3) in the silent shell (1), wherein a PUR shell (2) is disposed outside the silent shell (1), wherein the PUR shell (2) comprises a PUR upper shell (21) and a PUR lower shell (22), wherein the PUR upper shell (21) and the PUR lower shell (22) are connected via a rubber sleeve (4), wherein the silent shell (1) is provided with a first wiring harness avoidance hole, wherein the PUR shell (2) is provided with a second wiring harness avoidance hole, wherein the PUR shell (2) is provided with a staple, and wherein the air pump (3) equipped with the silent shell (1) and the PUR shell (2) is connected to a seat frame via the staple.

2. The air pump sound insulation and shock absorption structure for a car seat according to claim 1, characterized in that: It also includes a fixed rubber sleeve (6), which is arranged between the air pump (3) and the silent housing (1) and is used to further fix the connection between the silent housing upper shell (11) and the silent housing lower shell (12), while increasing the gap between the air pump (3) and the silent housing (1).

3. The air pump sound insulation and shock absorption structure for a car seat according to claim 2, characterized in that: The fixed rubber sleeve (6) comprises an inner ring (61) and an outer ring (62), the inner wall of the inner ring (61) is evenly distributed with a plurality of convex strips (611), the fixed rubber sleeve (6) is connected to the air pump (3) via the inner ring (61), the inner ring (61) is connected to the outer ring (62) via a plurality of connecting posts (63), a wiring harness fixing seat (64) is provided on the outer wall of the inner ring (61), a third wiring harness avoidance hole is provided on the outer ring (62), the upper shell (11) of the silent shell and the lower shell (12) of the silent shell are further connected via the outer ring (62), and a connecting post avoidance hole (13) is provided on the silent shell (1) at a position relative to the connecting post (63).

4. The air pump sound insulation and shock absorption structure for a car seat according to claim 1, characterized in that: At least one foam (5) is provided between the air pump (3) and the silent housing (1).

5. The air pump sound insulation and shock absorption structure for a car seat according to claim 1, characterized in that: The silent housing (1) is a POM plastic housing that is shaped like an air pump housing.

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