Air pump assembly capable of reducing noise and massage device applying air pump assembly

Abstract

The utility model discloses an air pump assembly capable of reducing noise, which comprises a base plate, an air pump box and an air pump arranged in the air pump box, the air pump box is provided with a plurality of walls, and the air pump box is combined on the base plate in a suspension mode through an elastic assembly so as to prevent the air pump from transmitting mechanical vibration to the base plate. The elastic assembly comprises a plurality of elastic bodies, and the two ends of each elastic body are fixedly connected to the base plate and the air pump box respectively. The silencing sponge is clamped between the base plate and the air pump box; wherein the wall, facing the silencing sponge, of the air pump box is provided with at least one air hole, the air hole is communicated with the air pump through airflow, and the silencing sponge is arranged on a circulation path of the airflow so as to reduce noise generated by the airflow. Noise is absorbed through the silencing sponge, and the elastomer and the silencing sponge can be designed in a combined mode, so that the noise reduction effect is further enhanced. The elastic body extrudes the silencing sponge to share vibration of the air pump, and secondary noise generated by vibration of the air pump is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of air pump noise reduction devices, and in particular to an air pump assembly that can reduce noise and its application in massage devices. Background Technology

[0002] Air pump components are widely used in modern industrial production and daily life. From large industrial machinery, such as pneumatic tools and air supply for automated production lines, to small consumer devices, such as massage devices, air purifiers, and vacuum cleaners, air pump components play an indispensable role. They convert electrical energy into mechanical energy to compress and transport gases, providing the necessary air supply support for the normal operation of various equipment. A prominent problem with air pumps during operation is noise pollution. The causes of air pump noise are complex. On the one hand, the mechanical components inside the air pump, such as the rotor of the motor and the reciprocating motion of the piston, generate mechanical vibrations when operating at high speeds. These vibrations propagate outwards through the air pump's casing and connected pipes, thus generating noise. On the other hand, during the intake / exhaust process, the high-speed flow of gas rubs against and impacts the internal air passage walls and valves, generating aerodynamic noise. The noise problem is particularly severe when the air pump operates at a high frequency or under a heavy load. Noise pollution not only disrupts the work environment, affecting the work efficiency and physical and mental health of operators, but also greatly reduces the user experience in civilian settings.

[0003] Existing noise reduction technologies often focus on a single noise reduction method without fully considering the interrelationships between various factors that generate noise during air pump operation. For example, while sound-absorbing materials can absorb some noise, they cannot effectively prevent the transmission of noise caused by air pump vibration; and vibration damping measures, without coordination with other methods such as sound absorption, are unlikely to achieve ideal noise reduction results. Moreover, existing noise reduction designs also present numerous inconveniences in production, assembly, and after-sales maintenance. The complex structure increases production difficulty and cost, and repairs are also challenging in the event of a malfunction. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a noise-reducing air pump assembly and its application in massage devices. The noise-reducing air pump assembly described in this application has achieved significant technical breakthroughs in noise reduction, vibration reduction, installation and maintenance through innovative structural design.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A noise-reducing air pump assembly includes a base plate, an air pump housing, and an air pump disposed inside the air pump housing, the air pump housing having multiple walls.

[0007] The air pump housing is suspended and attached to the substrate via an elastic component to prevent the air pump from transmitting mechanical vibrations to the substrate; the elastic component includes:

[0008] Multiple elastomers, each having its two ends fixed to a substrate and an air pump housing, respectively; and

[0009] Sound-absorbing foam sandwiched between the substrate and the air pump box;

[0010] The air pump box has at least one air hole on its wall facing the sound-absorbing sponge. The air hole and the air pump are connected by airflow, and the sound-absorbing sponge is positioned in the airflow path to reduce the noise generated by the airflow.

[0011] Furthermore, the elastomer is a rubber support column.

[0012] Furthermore, the elastic body is a spring damping component.

[0013] Furthermore, the substrate and the porous wall are compressed by the elastomer to deform the sound-absorbing sponge, thereby sharing the resonance of the air pump.

[0014] Furthermore, the air pump box includes an upper cover and a lower cover, the upper cover and the lower cover being fastened together to form an accommodating space for accommodating the air pump.

[0015] Furthermore, the air pump is suspended inside the lower cover of the air pump box by a silicone sleeve.

[0016] Furthermore, the silicone sleeve includes a fitting portion for fitting the air pump and a mounting portion formed by the fitting portion extending outward from its radial ends.

[0017] Furthermore, the upper and lower covers of the air pump box are equipped with positioning posts that cooperate with the mounting part.

[0018] Furthermore, the lower cover of the air pump box has an exhaust pipe, which is connected to the exhaust end of the air pump.

[0019] A massage device is provided, the massage device is equipped with the above-mentioned air pump assembly, the massage device further includes a massage air bag, the massage air bag and the air pump assembly are in gas communication through the exhaust pipe.

[0020] Due to the adoption of the above technical solutions, this utility model has the following beneficial effects:

[0021] 1. The air pump assembly of this utility model incorporates sound-absorbing sponges on the walls of the air pump housing. These sponges directly absorb noise generated during the air pump's intake process. When noise propagates outward through the air vents, the sponges effectively absorb noise energy, significantly reducing noise leakage. Furthermore, this application not only absorbs noise through the sponges but also enhances the noise reduction effect through the combined design of the elastomer and the sponges. The elastomer's compression of the sponges also helps to distribute the vibration of the air pump, reducing secondary noise generated by vibration. This multi-dimensional noise reduction mechanism intervenes from both the source and propagation path of noise, achieving comprehensive noise reduction. Compared to traditional single-mode noise reduction, the noise reduction effect is more significant.

[0022] 2. The base plate of this invention is connected to the air pump box via an elastomer, which has excellent elastic deformation capability. When the vibration generated by the air pump is transmitted to the elastomer, the elastomer will undergo elastic deformation, absorbing and buffering the vibration energy, thereby reducing the transmission of vibration. For example, using a rubber support as the elastomer, the rubber material itself has excellent shock absorption performance, which can effectively reduce the impact of air pump vibration on surrounding components and structures, and improve the stability and reliability of the equipment. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of this utility model, and are not intended to limit this utility model.

[0024] Figure 1 This is the first three-dimensional structural diagram of this utility model.

[0025] Figure 2 This is the second three-dimensional structural diagram of this utility model.

[0026] Figure 3 This is the first exploded view of the structure of this utility model.

[0027] Figure 4 This is the first cross-sectional structural diagram of this utility model.

[0028] Figure 5 This is the exploded view of the second structure of this utility model.

[0029] Figure 6 This is a second cross-sectional structural diagram of the present invention.

[0030] Figure label:

[0031] In the figure, 100. Air pump box; 110. Wall; 111. Air hole; 112. Exhaust hole; 113. Exhaust pipe; 120. Wall with air hole; 130. Air pump box top cover; 140. Air pump box bottom cover; 200. Air pump; 300. Sound-absorbing sponge; 400. Base plate; 500. Elastomer; 510. Rubber support column; 600. Accommodating space; 700. Silicone sleeve; 710. Sleeve part; 720. Mounting part; 800. Positioning column. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] Unless otherwise defined, the technical or scientific terms used in this patent document shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar words used in this utility model patent specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "an," "a," or "the," etc., do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising," "including," etc., mean that the element or object preceding "comprising" or "including" encompasses the element or object listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.

[0037] Please see Figures 1-3 This utility model discloses a noise-reducing air pump assembly, which mainly includes a base plate 400, an air pump housing 100, and an air pump 200 disposed inside the air pump housing 100. The air pump housing 100 has multiple walls 110 and is attached to the base plate 400 in a suspended manner by elastic components. This suspended connection method can effectively prevent the air pump 200 from transmitting mechanical vibration to the base plate 400 during operation.

[0038] Please see Figures 4-6The elastic component includes multiple elastic bodies 500, with both ends of each elastic body 500 fixed to the base plate 400 and the air pump box 100, respectively. In practical applications, the elastic body 500 can be a rubber support column 510, which has good elasticity and shock absorption performance and can effectively absorb the mechanical vibration generated by the air pump 200. For example, the rubber support column 510 is made of natural or synthetic rubber material, and its hardness and elastic coefficient are reasonably designed to adapt to the weight and vibration frequency of the air pump 200. One end of the rubber support column is fixed to the base plate 400 by deformation, and the other end is also connected to the air pump box 100 by deformation. The elastic component also includes a sound-absorbing sponge 300 sandwiched between the base plate 400 and the air pump box 100. The sound-absorbing sponge 300 has a porous structure and can effectively absorb and weaken the propagation of sound. The air pump housing 100 has at least one air hole 111 on its wall facing the sound-absorbing sponge 300. The air hole 111 is connected to the air pump 200 by airflow, and the sound-absorbing sponge 300 is positioned in the airflow path. When the airflow generated by the air pump 200 flows through the air hole 111 to the sound-absorbing sponge 300, the sound-absorbing sponge 300 can reduce the noise generated by the airflow. In this embodiment, the substrate 400 and the wall 120 with air holes are compressed by the elastomer 500, causing the sound-absorbing sponge 300 to deform. After the sound-absorbing sponge 300 is deformed, its internal pore structure changes, further enhancing its noise absorption capacity, thereby sharing the resonance of the air pump 200. To ensure the best noise reduction effect of the sound-absorbing sponge 300, the deformation of the sound-absorbing sponge 300 caused by the compression of the elastomer 500 is less than 70% of its total deformation. For example, the sound-absorbing sponge 300 has a thickness of 10 cm when it is not compressed, and its total deformation is 5 cm (that is, it can be compressed to a maximum of 5 cm). In actual use, the deformation is controlled to within 3.5 cm by the compression of the rubber support column 510.

[0039] The air pump housing 100 of this application includes an upper cover 130 and a lower cover 140. The upper cover 130 and the lower cover 140 are fastened together to form an accommodating space 600 for accommodating an air pump 200. The air pump 200 is suspended inside the lower cover 140 by a silicone sleeve 700. The silicone sleeve 700 has good flexibility and shock absorption performance, which can further reduce the vibration generated by the air pump 200 during operation and transmit it to the air pump housing 100. The silicone sleeve 700 includes a fitting portion 710 for fitting the air pump 200 and mounting portions 720 extending outward from both radial ends of the fitting portion 710. The upper cover 130 and the lower cover 140 of the air pump housing are provided with positioning posts 800 that cooperate with the mounting portions 720. During installation, the silicone sleeve 700 is fitted onto the air pump 200, and then the mounting part 720 is aligned with the positioning posts 800 on the upper cover 130 and lower cover 140 of the air pump box, so that the silicone sleeve 700 is accurately installed inside the air pump box 100, thereby achieving the suspended installation of the air pump 200. The lower cover 140 of the air pump box has an exhaust pipe 113, which is connected to the exhaust end of the air pump 200 and is used to discharge the gas generated by the air pump 200 during operation. In this embodiment, the lower cover 140 of the air pump box also has an exhaust hole 112.

[0040] This utility model also relates to a massage device equipped with the aforementioned noise-reducing air pump assembly. The massage device also includes a massage air bag, which is connected to the air pump assembly via an exhaust pipe 113. When the air pump assembly operates, the air pump 200 delivers gas through the exhaust pipe 113 to the massage air bag, causing the air bag to inflate and thus massaging the corresponding parts of the user's body. Due to the noise-reducing structural design of the air pump assembly, the noise generated by the air pump during operation is significantly reduced, enhancing the user's massage experience.

[0041] Air pump box assembly: First, suspend the air pump 200 inside the lower cover 140 of the air pump box using the silicone sleeve 700. Tightly fit the sleeve 710 of the silicone sleeve 700 onto the air pump 200. Then, align the mounting part 720 with the positioning post 800 on the lower cover 140 of the air pump box to fix the silicone sleeve 700 to the lower cover 140. Next, fasten the upper cover 130 of the air pump box to the lower cover 140 of the air pump box, ensuring that the air pump 200 is sealed within the accommodating space 600. Ensure that the exhaust pipe 113 on the lower cover 140 of the air pump box and the exhaust end of the air pump 200 are aligned to ensure smooth exhaust without leakage. Elastic component installation: On the base plate 400, at the four corners corresponding to the air pump box 100, fix one end of the rubber support post to the base plate 400 through deformation. Then, place the sound-absorbing sponge 300 on the base plate 400, ensuring that the sound-absorbing sponge 300 covers the area between the rubber support posts. Next, the assembled air pump box 100 is placed on the sound-absorbing sponge 300, so that the other end of the rubber support column is inserted into the bottom of the air pump box 100 through deformation. At this time, the base plate 400 and the air pump box 100 are connected together by the rubber support column and the sound-absorbing sponge 300. The rubber support column compresses the sound-absorbing sponge 300, causing the sound-absorbing sponge 300 to deform to a certain extent, with the deformation controlled at about 50% of its total deformation. Air holes 111 are opened on the wall of the air pump box 100 facing the sound-absorbing sponge 300. The air holes 111 are evenly distributed on the wall 110 of the air pump box, and the air holes 111 are connected to the air pump 200 through an internal air passage.

[0042] Test: The assembled air pump assembly was connected to a power source, and the air pump 200 was started. A noise level was measured at a distance of 1 meter from the air pump assembly using a noise meter. The result showed a noise level of 45 decibels. In contrast, a conventional air pump assembly of the same type without this invention's structure produced a noise level of 65 decibels under the same test conditions. The comparison clearly demonstrates that the air pump assembly of this embodiment has a significant effect on noise reduction. Simultaneously, vibration testing of the substrate 400 revealed that the vibration amplitude of the substrate 400 was reduced by approximately 70% compared to traditional air pump assemblies, effectively preventing the air pump 200 from transmitting mechanical vibration to the substrate 400.

[0043] Component preparation: The dimensions and materials of the substrate 400, air pump box 100, air pump 200, silicone sleeve 700, and sound-absorbing sponge 300 are the same as in Example 1. Four spring dampers are prepared as elastic bodies 500. The springs of the spring dampers are made of high-strength alloy steel, with a spring diameter of 3 cm and a spring height of 6 cm. The spring constant has been calculated and tested to meet the requirements of supporting the air pump box 100 and effectively damping vibrations.

[0044] Air pump box assembly: Similar to Example 1, first suspend the air pump 200 inside the lower cover 140 of the air pump box through the silicone sleeve 700, then fasten the upper cover 130 of the air pump box and connect the exhaust pipe 113.

[0045] Elastic component installation: Install spring damper mounting bases on the base plate 400 at the four corners corresponding to the air pump box 100, fixing one end of the spring damper to the mounting base. Place the sound-absorbing sponge 300 on the base plate 400, then place the assembled air pump box 100 on the sound-absorbing sponge 300, ensuring the other end of the spring damper contacts the bottom of the air pump box 100, and fix it using a connecting device. The spring damper compresses the sound-absorbing sponge 300, controlling its deformation to approximately 60% of the total deformation. Four 1 cm diameter air holes 111 are also provided on the wall of the air pump box 100 facing the sound-absorbing sponge 300, and the air holes 111 are connected to the air pump 200 through internal air channels.

[0046] Air pump assembly installation: Install the air pump assembly assembled in Example 1 onto the bottom frame of the massage device, ensuring the air pump assembly is securely fixed. Connect the exhaust pipe 113 of the air pump assembly to each massage air bag via connecting pipes. The connecting pipes are made of soft yet strong rubber material to ensure smooth gas delivery and no air leakage.

[0047] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A noise-reducing air pump assembly, comprising a base plate, an air pump housing, and an air pump disposed within the air pump housing, the air pump housing having multiple walls; characterized in that: The air pump housing is suspended and attached to the substrate via an elastic component to prevent the air pump from transmitting mechanical vibrations to the substrate; the elastic component includes: Multiple elastomers, each having its two ends fixed to a substrate and an air pump housing, respectively; and Sound-absorbing foam sandwiched between the base plate and the air pump box; The air pump box has at least one air hole on its wall facing the sound-absorbing sponge. The air hole and the air pump are connected by airflow, and the sound-absorbing sponge is positioned in the airflow path to reduce the noise generated by the airflow.

2. The air pump assembly according to claim 1, characterized in that, The elastomer is a rubber support column.

3. The air pump assembly according to claim 1, characterized in that, The elastic body is a spring damping component.

4. The air pump assembly according to claim 1, characterized in that, The substrate and the porous wall are compressed by the elastomer to the sound-absorbing sponge, so that the sound-absorbing sponge deforms and thus shares the resonance of the air pump.

5. The air pump assembly according to claim 1, characterized in that, The air pump box includes an upper cover and a lower cover, which are fastened together to form an accommodating space for accommodating the air pump.

6. The air pump assembly according to claim 1, characterized in that, The air pump is suspended inside the lower cover of the air pump box by a silicone sleeve.

7. The air pump assembly according to claim 6, characterized in that, The silicone sleeve includes a fitting portion for fitting the air pump and a mounting portion formed by the fitting portion extending outward from its radial ends.

8. The air pump assembly according to claim 7, characterized in that, The upper and lower covers of the air pump box are equipped with positioning posts that cooperate with the mounting part.

9. The air pump assembly according to claim 6, characterized in that, The lower cover of the air pump box has an exhaust pipe, which is connected to the exhaust end of the air pump.

10. A massage device, wherein the massage device is configured with an air pump assembly as described in any one of claims 1 to 9, characterized in that, The massage device also includes a massage air bag, which is connected to the air pump assembly via the exhaust pipe.

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