CN216111181U - Air pump shock-absorbing structure and air pump assembly - Google Patents

Abstract

The utility model relates to an air pump damping structure, which comprises a shell for packaging an air pump and a damping device arranged between the shell and the air pump, wherein the damping device comprises a first damping piece and a second damping piece; the first shock absorber is sleeved in the middle of the air pump and fixedly held on the shell, and the second shock absorber is installed at one end of the air pump and abuts against the inner side end wall of the shell through pretightening force. According to the air pump damping structure, noise can be reduced to the maximum extent, reliable fixing can be achieved, and the whole structure is simple and compact. The utility model also relates to an air pump assembly comprising the air pump damping structure.

Description

Air pump shock-absorbing structure and air pump assembly

Technical Field

The utility model relates to the technical field of air pumps, in particular to an air pump damping structure particularly used in a seat massage system and an air pump assembly comprising the same.

Background

With the development of science and technology, more and more functions are integrated in the automobile seat. In order to meet the requirements of the vehicle user as much as possible and to increase the comfort of the user, a seat massage system can also be integrated in the vehicle seat. When the user keeps sitting and standing for a long time, the massage system can be used for relieving fatigue. In a seat massage system, an air pump assembly is typically employed to effect a corresponding massage operation. When the air pump is running, its motor is used to make its internal parts implement eccentric movement, and at the same time, the air bag can be used to make periodic compression and stretching movement. However, the air pump may periodically move axially and oscillate circumferentially during operation, so that the air pump may shake significantly and generate a loud noise, especially when the air pump is just started to operate and the load is heavy.

In order to reduce as much as possible the vibrations and noise generated during the operation of the air pump, some solutions have been proposed in the prior art. For example, it is known in the art to secure an air pump within an enclosure by means of a sponge device. However, the sponge block has poor elastic recovery capability after deformation, so that the damping function is reduced, the vibration isolation capability of the sponge is limited, and the effective service life is short. In addition, the sponge block has the defects of difficult fixation, easy displacement and the like.

Accordingly, there is a need for a novel shock absorbing structure for an air pump that overcomes one or more of the problems set forth above and/or other disadvantages associated with the prior art.

SUMMERY OF THE UTILITY MODEL

The present invention has been made in view of such a background, and an object thereof is to provide an air pump shock-absorbing structure, particularly for use in a seat massage system, which is capable of eliminating impact collisions to the maximum extent and reducing vibration transmission, thereby optimally achieving shock absorption and noise reduction.

According to an aspect of the present invention, there is provided an air pump shock-absorbing structure including a case enclosing an air pump and a shock-absorbing device disposed between the case and the air pump, wherein the shock-absorbing device includes a first shock-absorbing member and a second shock-absorbing member; the first shock absorber is sleeved in the middle of the air pump and fixedly held on the shell, and the second shock absorber is installed at one end of the air pump and abuts against the inner side end wall of the shell through pretightening force.

Advantageously, the casing comprises a first half-shell and a second half-shell engaged with each other, the first shock-absorbing member being provided on its periphery with a plurality of mounting lugs which are fixedly clamped between the first half-shell and the second half-shell engaged with each other. In this way, the air pump can be mounted in a suspended manner relative to the housing.

Advantageously, the first shock-absorbing member has an axially extending central hole, the inner wall of which is provided with a plurality of positioning protrusions which engage with a corresponding number of positioning recesses provided on the outer circumference of the air pump.

Advantageously, said first shock-absorbing member is further provided with a plurality of axial holes radially offset with respect to said central hole. The second shock-absorbing member has two opposite end surfaces respectively abutted against the end portion of the air pump and the inner side end wall of the first half shell, and a plurality of flexible protrusions are provided on each end surface. With these axial holes and flexible protrusions, the flexibility and shock-absorbing performance of the first and second shock-absorbing members can be increased.

Advantageously, the second shock absorbing member is provided on an outer periphery thereof with a protrusion provided with a first through groove through which a cable of the air pump passes. The inner side of the first half shell is provided with a mounting groove for receiving the protruding part of the second shock absorbing member, and the outer side of the first half shell is provided with a second through groove for receiving a cable.

Advantageously, the first and second damping members are made of a rubber material. The air pump shock-absorbing structure is preferably used in a seat massage system.

According to a second aspect of the present invention, there is provided an air pump assembly including an air pump and the air pump shock-absorbing structure described above.

The air pump damping structure has the advantages that noise can be reduced to the maximum extent, the whole structure relates to simple components, flexible fixation of the air pump on six degrees of freedom can be realized, reliable fixation can be realized by arranging the corresponding positioning devices, the whole structure is compact, and excessive space does not need to be occupied.

Drawings

The above and other features and advantages of the present invention will become more readily understood from the following description with reference to the accompanying drawings, in which:

fig. 1 is an exploded perspective view illustrating a shock-absorbing structure of an air pump according to an embodiment of the present invention;

FIG. 2 is a perspective view showing an assembled state of an air pump shock-absorbing structure according to an embodiment of the present invention;

FIG. 3 schematically illustrates an installation of the first and second vibration attenuating members on the air pump, wherein the first and second vibration attenuating members are indicated by dotted lines;

FIG. 4 is a schematic structural view of a first shock absorbing member;

FIG. 5A is a schematic view of the structure of the second cushion member; and FIG. 5B is a schematic view of a state in which the second damper is received in the first half shell of the housing.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific examples. Terms such as "first," "second," and the like are used hereinafter to describe elements of the present application and are used only to distinguish one element from another without limiting the nature, sequence, order, or number of such elements. In addition, it is to be noted that in the present description, identical and/or functionally identical technical features are provided with the same or similar reference signs. In addition, descriptions about orientations such as "up/down", "inside/outside", and the like may be used in the following description, unless explicitly stated otherwise, and are for convenience of description only and are not intended to form any limitation on the technical solution of the present invention.

Fig. 1 and 2 show schematic views of an air pump shock-absorbing structure 1 according to an embodiment of the present invention in an exploded state and an assembled state, respectively. The air pump shock absorption structure 1 comprises a shell 3 for packaging an air pump 2 and a shock absorption device arranged between the shell 3 and the air pump 2. The air pump 2 generally includes a motor portion 2a and a moving part portion 2b connected to the motor portion 2a, and the moving part portion 2b includes a part that performs an eccentric motion by being driven by a motor. According to a particular embodiment, the housing 3 comprises a first half-shell 3a and a second half-shell 3b engaged with each other, which first and second half- shells 3a, 3b may preferably be snap-connected. For example, with reference to fig. 1 and 2, a plurality of catches 4 projecting in the axial direction are provided on the first half-shell 3a, these catches 4 being intended to snap into engagement with a plurality of projections 4' provided in the circumferential direction of the second half-shell 3b (see fig. 2). Of course, other means of attachment known in the art are possible so long as the functionality described herein is achieved.

With particular reference to fig. 2, the first half-shell 3a is mainly intended to enclose said motor part 2a and the second half-shell 3b is mainly intended to enclose said moving part 2 b. As shown in fig. 3, the damper device includes a first damper 5 and a second damper 6, which are preferably made of a rubber material, the first damper 5 is fitted over a middle portion of the air pump 2 (specifically, over a circumferential wall at an end of the motor portion 2a adjacent to the moving part portion 2 b), and the second damper 6 is mounted on an end portion of the air pump 2 (specifically, on an end portion of the motor portion remote from the moving part portion 2 b) and abuts against an inner side end wall of the housing 3 with a preload.

The first damping member 5 is fixedly held on the housing 3 so that the air pump 2 is suspended relative to the housing 3 to avoid or minimize transmission of air pump vibrations. According to an advantageous embodiment, the first shock-absorbing member 5 is provided on its periphery with a plurality of mounting lugs 7 (see fig. 4). In the assembled state as shown in fig. 2, the plurality of mounting lugs 7 are fixedly clamped or clamped between the first and second half- shells 3a, 3b which are engaged with one another. The first shock-absorbing member 5 has an axially extending central hole 8 for receiving a portion of the air pump 2, the inner wall of the central hole 8 being provided with a plurality of positioning protrusions 9, said plurality of positioning protrusions 9 engaging with a corresponding number of positioning recesses 10 (see fig. 2) provided on the outer circumference of said air pump 3.

In order to increase the flexibility of the first shock absorbing member 5 as much as possible, said first shock absorbing member 5 is further provided with a plurality of axial holes 11 radially offset with respect to said central hole 8. As shown in fig. 4, four axial holes 11 are circumferentially provided around the center hole 8 of the first shock absorbing member 5, so that it is possible to provide more deformation and shock absorbing ability. Of course other arrangements of the holes are possible as long as the above-described function of increasing the flexibility of the shock absorbing member is achieved.

Referring to fig. 5A, similar to the first damper 5, the second damper 6 has a central hole 12 for receiving a tapered projection 13 (see fig. 3) provided at the motor end of the air pump 3, and the second damper 6 has two opposite end faces abutting against the motor end and the inner side end wall of the housing 3, respectively. For better absorption of vibrations, a plurality of flexible protrusions 14 are provided on each end face of the second shock absorbing member 6. As can be seen in fig. 5A, these flexible protrusions 14 are arranged around the central hole 12 of the second shock absorbing member 6. Advantageously, these flexible protrusions 14 may be integrally formed with the second damping member 6.

With the first and second dampers 5 and 6 described above, flexible fixation of the air pump 3 in six degrees of freedom can be achieved. In addition, the shock absorption member and the air pump are reliably connected through the positioning members (such as the positioning protrusions 9 and the positioning grooves 10). With the mounting lugs 7 provided on the first shock-absorbing member 5, the air pump 2 can be well isolated from the housing 3 to suspend the air pump 2. The elastic deformability of the first and second dampers 5 and 6 can absorb the circumferential vibration and the axial vibration of the air pump 2 well, respectively, so as to avoid the collision between the air pump 2 and the housing 3 as much as possible and reduce the noise.

Referring again to fig. 5A, the second shock absorbing member 6 is provided on the outer circumference thereof with a protrusion 15, and the protrusion 15 is provided with a first through-groove 17 through which a cable 16 of the air pump passes. As can be seen in particular from fig. 3, the cable 16 of the electric machine extends through a first through-going slot 17 provided in the projection 15 of the second shock absorbing member 6. Since the second damper 6 is disposed between the air pump and the housing, specifically, the first half-shell, the inner side of the first half-shell is provided with a mounting groove 18 (see fig. 5B) for receiving the protrusion 15 of the second damper 6, and the outer side of the first half-shell is provided with a second through-groove 19 for receiving the cable 16.

It should be understood that the air pump shock absorbing structure described above is preferably used in a seat massage system. But also can be used in other fields for providing the shock absorption and noise reduction effects for the air pump. By adopting the air pump damping assembly provided by the utility model, vibration transmission can be reduced to the greatest extent, so that damping and noise reduction can be realized optimally, and the air pump damping assembly is simple and compact in structure and simple to operate.

It should be noted that the above-described embodiments should be regarded as merely illustrative, and the present invention is not limited to these embodiments. Various changes and modifications may be made by those skilled in the art without departing from the scope or spirit of the utility model in view of the contents of this specification. With a true scope of the utility model being indicated by the following claims and their equivalents.

Claims (10)

1. An air pump shock-absorbing structure (1), the air pump shock-absorbing structure (1) comprising a housing (3) enclosing an air pump (2) and a shock-absorbing device arranged between the housing (3) and the air pump (2), characterized in that the shock-absorbing device comprises a first shock-absorbing member (5) and a second shock-absorbing member (6); the first damping piece (5) is sleeved in the middle of the air pump (2) and fixedly held on the shell (3), and the second damping piece (6) is installed at one end of the air pump (2) and abuts against the inner side end wall of the shell (3) with a pretightening force.

2. The air pump shock-absorbing structure (1) according to claim 1, wherein the housing (3) comprises a first half shell (3a) and a second half shell (3b) that are engaged with each other, and the first shock-absorbing member (5) is provided on the outer periphery thereof with a plurality of mounting lugs (7), the plurality of mounting lugs (7) being fixedly clamped between the first half shell (3a) and the second half shell (3b) that are engaged with each other.

3. The air pump shock-absorbing structure (1) according to claim 2, wherein the first shock-absorbing member (5) has a center hole (8) extending in the axial direction, and a plurality of positioning protrusions (9) are provided on an inner wall of the center hole (8), the plurality of positioning protrusions (9) being engaged with a corresponding number of positioning grooves (10) provided on the outer circumference of the air pump (2).

4. Air pump shock-absorbing structure (1) according to claim 3, characterized in that said first shock-absorbing member (5) is further provided with a plurality of axial holes (11) radially offset with respect to said central hole (8).

5. Air pump shock-absorbing structure (1) according to claim 4, characterized in that said second shock-absorbing member (6) has two opposite end faces, each provided with a plurality of flexible protrusions (14), respectively abutting against said end of said air pump (2) and the inner end wall of said first half-shell (3 a).

6. The air pump shock-absorbing structure (1) according to claim 5, wherein the second shock-absorbing member (6) is provided on an outer periphery thereof with a protrusion (15), and the protrusion (15) is provided with a first through-groove (17) through which a cable (16) of the air pump passes.

7. The air pump shock-absorbing structure (1) according to claim 6, wherein an inner side of the first half-shell (3a) is provided with a mounting groove (18) for receiving the protrusion (15) of the second shock-absorbing member (6), and an outer side of the first half-shell (3a) is provided with a second through-groove (19) for receiving a cable (16).

8. The air pump shock-absorbing structure (1) according to any one of claims 1 to 7, wherein the first shock-absorbing member (5) and the second shock-absorbing member (6) are made of a rubber material.

9. Air pump shock-absorbing structure (1) according to any one of claims 1 to 7, characterized in that it is used in a seat massage system.

10. Air pump assembly, characterized in that it comprises an air pump and an air pump shock-absorbing structure (1) according to any one of claims 1 to 9.

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