Search

CN-122014568-A - Pump valve suction integrated damping and silencing integrated system

CN122014568ACN 122014568 ACN122014568 ACN 122014568ACN-122014568-A

Abstract

A pump valve suction integrated damping and silencing integrated system comprises an upper cover and a lower cover which are buckled to form a silencing shell. The invention has the beneficial effects that the self-reversing valve is integrated in the silencing shell, the active suction function of the system is endowed on the premise of not changing the existing ECU framework, the high-frequency cyclic massage is supported, the adapter and the three-dimensional hard limit and O-shaped ring are adopted to seal, the pipeline is prevented from being shrunken and a solid sound bridge is blocked, the anti-locking of an X shaft, the hollowed-out of a Y shaft double-bridge, the interference pre-compression of a Z shaft and the multi-line interference fit of the inner side of a damping sleeve are combined, the asymmetric rigidity of a motor end and a pump end is combined, vibration and swing resonance are eliminated, the direct sound is eliminated by a stepped labyrinth joint and an offset air inlet hole, the noise is reduced by matching with a sound absorbing piece, the long and thin elastic buffer piece wraps the motor tail to prevent collision and reduce convection interference, the sound absorbing piece and the air gap reserved at the motor tail form convection cooling, the axial fixing is realized by the buckle, and the elastic body is flexibly connected to an external structure, so that the vehicle-mounted silencing and damping are realized.

Inventors

  • WANG JIARONG
  • Request for anonymity
  • Request for anonymity
  • Request for anonymity

Assignees

  • 厦门劲创未来智能科技有限公司

Dates

Publication Date
20260512
Application Date
20260416

Claims (10)

  1. 1. A pump valve suction integrated damping and silencing system is characterized by comprising: An upper cover (1) and a lower cover (12) which are buckled to form a silencing shell; The air pump component (8) is arranged in the silencing shell, one end of the air pump component is a pump end, and the other end of the air pump component is a motor end; The automatic reversing valve (4) is integrated in the silencing shell, and the automatic reversing valve (4) is formed by connecting two air paths of two three-way electromagnetic valves in parallel, wherein two air source ends of the two three-way electromagnetic valves are respectively connected with an air inlet and an air outlet of the air pump assembly (8) through the air path connecting piece (6), and the unique public end of the automatic reversing valve is connected with an air outlet hole of the lower cover (12) through the adapter (5) so as to be connected with an external main air path bus; the damping suspension assembly comprises a first damping sleeve (7) and a second damping sleeve (10), wherein the first damping sleeve (7) and the second damping sleeve (10) are respectively sleeved at two ends of the air pump assembly (8), and the inner profile shapes of the first damping sleeve (7) and the second damping sleeve (10) are matched with the profile shape of the air pump assembly (8).
  2. 2. The integrated pump valve suction integrated damping and silencing system according to claim 1, wherein a suspension assembly (13) is arranged on the outer surfaces of the first damping sleeve (7) and the second damping sleeve (10) in a radially and tangentially protruding mode, the first damping sleeve (7) and the second damping sleeve (10) are respectively clamped on the upper cover (1) and the lower cover (12) through the suspension assembly (13), and the fixing is achieved through groove limiting formed by buckling of the upper cover (1) and the lower cover (12), so that axial movement of the air pump assembly (8) is prevented.
  3. 3. The integrated pump valve suction integrated damping and silencing system according to claim 2, wherein the suspension assembly (13) comprises cross ribs (131) and hollow cantilevers (132) which are respectively and independently arranged on the outer wall of the damping sleeve in a protruding mode, the cross ribs (131) have the function of laterally supporting and preventing shaking, and the hollow cantilevers (132) can convert a compression mode into bending and shearing deformation so as to reduce radial rigidity of the system and absorb high-frequency vibration.
  4. 4. The integrated pump valve suction integrated damping and silencing system according to claim 1, wherein the inner side walls of the first damping sleeve (7) and the second damping sleeve (10) are respectively provided with a discontinuous contact microstructure, and the discontinuous contact microstructure comprises inward extending protrusions and outward recessed clearance grooves, and is configured to convert the contact state between the first damping sleeve (7) and the second damping sleeve (10) and the air pump assembly (8) from surface contact to multi-line contact or multi-point contact, and form interference fit.
  5. 5. The integrated pump valve suction integrated damping and silencing system according to claim 1, wherein the damping suspension assembly further comprises at least two elastic bodies (2), the elastic bodies (2) are arranged on the outer wall of the silencing shell, the silencing shell is flexibly connected with the external assembly through the elastic bodies (2), and one or more of a binding belt (3), dispensing and clamping embedding are selected as a connection mode of the elastic bodies (2) and the silencing shell.
  6. 6. The integrated pump valve suction integrated damping and silencing system as set forth in claim 1, wherein the radial stiffness of the damping suspension assembly corresponding to the motor end of the air pump assembly (8) is greater than the radial stiffness of the damping suspension assembly corresponding to the pump end thereof, and an asymmetric stiffness match is formed to enable the system elastic center to coincide with the physical center of gravity, and the asymmetric stiffness match is realized by any one or a combination of multiple of the following structures: The thickness of the suspension ribs of the vibration-damping suspension assembly corresponding to the motor end is larger than that of the suspension ribs of the vibration-damping suspension assembly corresponding to the pump end; the suspension ribs of the damping suspension assembly corresponding to the motor end adopt a trapezoid variable cross-section structure; The motor end and the pump end are made of different materials or different hardness materials.
  7. 7. The integrated pump valve suction integrated damping and silencing system according to claim 1, wherein an acoustic labyrinth structure for blocking a sound wave linear propagation path is arranged at a joint of the upper cover (1) and the lower cover (12), and the acoustic labyrinth structure is formed by mutually overlapping or staggering matching of joint edges of the upper cover (1) and the lower cover (12) to form a nonlinear sound transmission path.
  8. 8. The integrated pump valve suction integrated system is characterized in that an air inlet hole is formed in a silencing shell, the air inlet hole is arranged in a staggered mode with the end portion of a motor of an air pump assembly (8) so as to eliminate a direct sound path of sound wave linear radiation, a sound absorbing piece (11) and an elastic buffer piece (9) are further arranged in the silencing shell, the elastic buffer piece (9) surrounds and wraps the side edge of the tail portion of the motor of the air pump assembly (8), the sound absorbing piece (11) is attached to the inner wall of the tail portion of the silencing shell, and a hollowed-out avoiding area or a diversion groove is formed in one side, facing the air pump assembly (8), of the sound absorbing piece (11) so that an air gap for natural convection cooling is reserved between the sound absorbing piece (11) and the end face of the tail portion of the motor of the air pump assembly (8) and is used for air intake.
  9. 9. The integrated pump valve suction integrated damping and silencing system according to claim 5, wherein the two side hanging lugs of the first damping sleeve (7) and the second damping sleeve (10) are abutted against the upper cover (1) and the lower cover (12), and interference pre-compression is formed when the upper cover (1) and the lower cover (12) are closed.
  10. 10. The integrated pump valve suction integrated damping and silencing system of claim 1, further comprising a gas path control method, specifically comprising the following steps: the step of inflation, namely controlling the autonomous reversing valve (4) to communicate the air outlet of the air pump assembly (8) with an external main air path bus, and starting the air pump assembly (8) to inflate the air bag; And when an air pumping instruction is received, controlling the autonomous reversing valve (4) to switch the air path, communicating the air inlet of the air pump assembly (8) with an external main air path bus, and starting the air pump assembly (8) to actively pump the air bag.

Description

Pump valve suction integrated damping and silencing integrated system Technical Field The invention relates to a pump valve, in particular to a pump valve suction integrated damping and silencing system. Background With the continuous upgrading of automobile seat comfort systems, pneumatic massage technology has evolved from traditional "slow inflation and deflation" to advanced cyclic massage modalities of "pneumatic and mechanical compounding" or "multi-chamber high frequency pulsing". This requires that the air bag must have a very high frequency of telescoping response, i.e., instantaneous inflation ejection and instantaneous deflation retraction. Meanwhile, the vehicle-mounted environment has strict requirements on NVH (noise and vibration) performance, and needs to cope with severe working conditions such as jolt, wide temperature range and the like. Therefore, developing a vehicle-mounted air source system which has high flow rate, is extremely silent and can support high-frequency pumping action becomes a technical problem to be solved in the field. In the prior art, the traditional seat massage ECU box (the built-in electromagnetic valve) only has the functions of active inflation, power failure and passive air leakage. Wherein, the passive air leakage mainly relies on the self elasticity of the air bag or the weight of the human body to extrude and exhaust, the exhaust speed is extremely slow, and the requirement of the high-level pulse cycle massage or the pneumatic and mechanical compound module on the quick retraction cannot be met. In order to realize the active pumping function, the existing ECU is generally required to be thoroughly abandoned, and the complex valve array module supporting the positive-negative pressure switching is redeveloped, so that the research and development cost and the vehicle-gauge verification cost are obviously increased. In addition, the existing small-flow air pump is mostly not provided with a special silencing shell, is only simply wrapped by soft rubber or a sound absorbing piece bag, has limited sound insulation effect, and is provided with the silencing shell, but the inner space is limited, so that the pump valve integrated integration is difficult to realize. In the aspect of shock absorption, the traditional solid rubber suspension lugs are easy to generate 'rigidity locking' (in zero clearance) or 'impact abnormal sound' (in play) in a vehicle-mounted bump environment. Meanwhile, the mass distribution of the motor end and the pump head end of the air pump is seriously uneven, the elastic center and the physical center of gravity are misplaced due to the traditional equal-rigidity single damping sleeve design, the teeterboard type swaying resonance is extremely easy to induce, and the universality of the installation direction in the vehicle is limited. In addition, the heat dissipation problem of the large-flow air pump in the airtight silencing shell is also needed to be solved, otherwise, the heat failure of the motor is easy to cause. Therefore, how to realize pump valve integration and suction integration in a compact silencing shell, thoroughly solve the problems of vibration, noise and heat dissipation, and upgrade the traditional ECU with zero cost to support the active suction function is a technical problem which needs to be solved by the person skilled in the art. Disclosure of Invention The invention aims to provide a pump valve suction integrated shock absorption and noise reduction integrated system aiming at the defects and the shortcomings in the prior art. The integrated pump valve suction integrated damping and silencing system comprises an upper cover and a lower cover, an air pump assembly, an autonomous reversing valve, an air pump assembly and a damping suspension assembly, wherein the upper cover and the lower cover are buckled to form a silencing shell, one end of the air pump assembly is a pump head end, the other end of the air pump assembly is a motor end, the autonomous reversing valve is integrated in the silencing shell and is formed by connecting two air paths of two three-way electromagnetic valves in parallel, two air source ends of the two three-way electromagnetic valves are respectively connected with an air inlet and an air outlet of the air pump assembly through an air path connecting piece, the unique public end of the air source ends of the two three-way electromagnetic valves are connected with an air outlet of the lower cover through an adapter, and then the air source ends of the two three-way electromagnetic valves are connected with an external main air path bus, the damping suspension assembly comprises a first damping sleeve and a second damping sleeve, the first damping sleeve and the second damping sleeve are respectively sleeved at two ends of the air pump assembly, and the inner profile shapes of the first damping sleeve and the second damping sleeve are matched with the profile of the air pump assembly.