CN115342588B - Vibration-damping mats and household appliances - Google Patents
Vibration-damping mats and household appliances Download PDFInfo
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- CN115342588B CN115342588B CN202110533111.9A CN202110533111A CN115342588B CN 115342588 B CN115342588 B CN 115342588B CN 202110533111 A CN202110533111 A CN 202110533111A CN 115342588 B CN115342588 B CN 115342588B
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- wall
- vibration reduction
- shock absorbing
- damping
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/10—Arrangements for mounting in particular locations, e.g. for built-in type, for corner type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/32—Supports for air-conditioning, air-humidification or ventilation units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/245—Means for preventing or suppressing noise using resonance
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/12—Sound
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2201/00—Insulation
- F25D2201/30—Insulation with respect to sound
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
本发明公开一种减振脚垫和家用电器，其中，减振脚垫用于连接家用电器的压缩机和底板，减振脚垫包括第一减振结构、第二减振结构和连接结构，第一减振结构具有连接压缩机的第一端、用于连接底板的第二端和贯穿第一端的空腔；第二减振结构插接于空腔内，并与空腔间隙配合，第二减振结构具有安装通道，安装通道供连接减振脚垫与底板的安装螺栓穿设；连接结构连接第一减振结构的内壁与第二减振结构的外壁。上述减振脚垫具有较好的减振效果，利于获得低振动噪音的家用电器。
The present invention discloses a vibration-damping foot pad and a household appliance, wherein the vibration-damping foot pad is used to connect the compressor and the bottom plate of the household appliance, and the vibration-damping foot pad comprises a first vibration-damping structure, a second vibration-damping structure and a connecting structure, wherein the first vibration-damping structure has a first end connected to the compressor, a second end used to connect to the bottom plate and a cavity penetrating the first end; the second vibration-damping structure is inserted into the cavity and cooperates with the cavity gap, and the second vibration-damping structure has an installation channel, and the installation channel is provided for the installation bolts connecting the vibration-damping foot pad and the bottom plate to pass through; the connecting structure connects the inner wall of the first vibration-damping structure and the outer wall of the second vibration-damping structure. The above-mentioned vibration-damping foot pad has a good vibration-damping effect, which is conducive to obtaining a household appliance with low vibration noise.
Description
Technical Field
The invention relates to the technical field of vibration reduction, in particular to a vibration reduction foot pad and a household appliance.
Background
The damping foot pad is an important component for connecting the bottom angle of the compressor and the bottom plate of the household appliance (the bottom plate of the box body of the household appliance such as a refrigerator, an air conditioner and the like), and is fixed on the bottom plate of the household appliance through a mounting bolt under normal conditions, and one end of the damping foot pad, which is far away from the bottom plate, is connected with the bottom angle of the compressor. The vibration damping effect of the vibration damping foot pad directly influences the vibration noise level of household appliances such as refrigerators, air conditioners and the like. However, the lateral rigidity of the vibration damping foot pad in the related art is relatively high, so that vibration excitation of the bottom corner of the compressor is mostly transmitted to the mounting bolts, and is transmitted to the bottom plate through the mounting bolts, thereby causing the bottom plate of the household appliance to resonate, and generating fundamental frequency (minimum natural frequency) resonance noise. Namely, the vibration damping effect of the vibration damping foot pad in the related art is limited, which is not beneficial to obtaining the household appliances with low vibration noise.
Disclosure of Invention
The invention mainly aims to provide a vibration reduction foot pad, aiming at increasing the vibration reduction effect of the vibration reduction foot pad so as to be beneficial to obtaining a household appliance with low vibration noise.
In order to achieve the above object, the present invention provides a vibration damping foot pad for connecting a compressor and a base plate of a home appliance, comprising:
a first vibration reduction structure having a first end connected to the compressor, a second end for connecting to the base plate, and a cavity extending through the first end;
The second vibration reduction structure is inserted in the cavity and is in clearance fit with the cavity, and is provided with a mounting channel for the mounting bolt to pass through, and
And the connecting structure is used for connecting the inner wall of the first vibration reduction structure with the outer wall of the second vibration reduction structure.
In an embodiment, the connection structure is disposed obliquely with respect to the arrangement direction of the first end and the second end.
In an embodiment, the connection structure and the arrangement direction of the first end and the second end form an included angle of 30 ° -60 ° with the opening towards the first end.
In an embodiment, in the arrangement direction from the first end to the second end, the lower end of the connection structure is connected to the inner wall of the first vibration reduction structure, the upper end of the connection structure is connected to the outer wall of the second vibration reduction structure, or the upper end of the connection structure is connected to the inner wall of the first vibration reduction structure, and the lower end of the connection structure is connected to the outer wall of the second vibration reduction structure.
In one embodiment, the connecting structure comprises a plurality of reinforcing ribs which are arranged at intervals and surround the second vibration reduction structure;
Or the connecting structure is a hollow round platform structure, the big end of the round platform structure is connected with one of the inner wall of the first vibration reduction structure and the outer wall of the second vibration reduction structure, and the small end of the round platform structure is connected with the other of the inner wall of the first vibration reduction structure and the outer wall of the second vibration reduction structure.
In an embodiment, the plurality of connection structures are arranged at intervals in an arrangement direction from the second end to the first end.
In one embodiment, the distance between the inner wall of the first vibration reduction structure and the outer wall of the second vibration reduction structure is 2mm-8mm, and/or
The cavity penetrates through the second end, the end face of the second vibration reduction structure away from the first end is flush with the end face of the second end, and/or
The thickness of the connecting structure, the thickness of the second vibration reduction structure and the thickness of the first vibration reduction structure are sequentially increased.
In an embodiment, one end of the second vibration reduction structure protrudes out of the first end, and is sleeved with a limiting portion, the limiting portion and the first end define a limiting groove, and the limiting groove is used for preventing the compressor from being separated from the vibration reduction foot pad.
The present invention also provides a home appliance including:
A bottom plate;
the second end of the damping foot pad is connected with the bottom plate, and
The compressor is provided with a base angle, and the base angle is abutted with the first end.
In an embodiment, when the damping foot pad is provided with a limiting groove, the bottom corner is provided with a mounting hole, and the bottom corner is sleeved on the second damping structure through the mounting hole and is limited between the limiting part and the first end;
The inner diameter of the mounting hole is larger than the outer diameter of the second vibration reduction structure, and/or
The opening width of the limiting groove is larger than or equal to the thickness of the base angle.
In the vibration damping foot pad, the second vibration damping structure is in clearance fit with the first vibration damping structure and is connected through the connecting structure, so that the main body part of the vibration damping foot pad (the second vibration damping structure and the first vibration damping structure) is provided with a hollow part and is not a solid structure, the transverse rigidity (namely, the horizontal rigidity, namely, the horizontal direction determined by the X axis and the Y axis in the three-dimensional rectangular coordinate system) of the vibration damping foot pad is smaller, and vibration generated by working of the compressor is transmitted to the first vibration damping structure, and then the vibration of a smaller part can be transmitted to the second vibration damping structure through the connecting structure. In this way, even after the mounting bolt is in direct contact with the inner wall of the mounting channel, very little (very weak) vibration can be transmitted to the mounting bolt through the second vibration reduction structure, so that the mounting bolt and the bottom plate can be prevented from resonating. Therefore, the damping effect of the damping foot pad is good, and the damping foot pad is beneficial to obtaining household appliances with low vibration noise.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of a household appliance according to an embodiment of the present invention;
fig. 2 is a perspective exploded view of the home appliance shown in fig. 1;
FIG. 3 is a schematic perspective view of a vibration damping footpad of the home appliance of FIG. 1;
FIG. 4 is a side view of the shock pad shown in FIG. 3;
FIG. 5 is a top view of the shock pad shown in FIG. 3;
FIG. 6 is a schematic cross-sectional view taken along line A-A of FIG. 5;
FIG. 7 is a schematic view of the shock pad of FIG. 6 secured to a base plate by mounting bolts in one embodiment;
FIG. 8 is a schematic view of the shock pad of FIG. 6 in another embodiment secured to a base plate by mounting bolts.
Reference numerals illustrate:
| Reference numerals | Name of the name | Reference numerals | Name of the name |
| 10 | Household appliance | 200 | Bottom plate |
| 300 | Compressor with a compressor body having a rotor with a rotor shaft | 400 | Damping foot pad |
| 310 | Base angle | 500 | Mounting bolt |
| 600 | Gasket | 700 | Nut |
| 410 | First vibration reduction structure | 420 | Second vibration reduction structure |
| 430 | Connection structure | 412 | First end |
| 414 | Second end | 416 | Cavity cavity |
| 422 | Mounting channel | 424 | Limiting part |
| 400a | Limiting groove | 312 | Mounting hole |
| 424a | Chamfering angle | 432 | Reinforcing rib |
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear are referred to in the embodiments of the present invention), the directional indications are merely used to explain the relative positional relationship, movement conditions, and the like between the components in a specific posture, and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" is presented throughout this document, it is intended to include three schemes in parallel, taking "a and/or B" as an example, including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The invention provides a household appliance.
In an embodiment of the present invention, as shown in fig. 1 and 2, the home appliance 10 includes a base plate 200, a compressor 300, and a vibration damping foot pad 400. In some embodiments, the home appliance 10 is a refrigerator, and in this case, the bottom plate 200 may be a bottom plate of a cabinet of the refrigerator. In some embodiments, the home appliance 10 is a split type air conditioner, and the base plate 200 may be a base plate of a cabinet of an outdoor unit of the air conditioner. In some embodiments, the home appliance 10 is a window air conditioner, and in this case, the bottom panel 200 may be a bottom panel of a cabinet of the window air conditioner.
Vibration damping footpad 400 connects base plate 200 to compressor 300. When the compressor 300 is operated, vibration is generated, and the base plate 200 and the compressor 300 are connected through the vibration reduction foot pad 400, so that the vibration generated by the compressor 300 can be effectively prevented from being transmitted to the base plate 200, and the household appliance 10 with relatively low vibration noise can be obtained.
Specifically, in the present embodiment, the damper foot pad 400 connects the base plate 200 with the bottom corner 310 of the compressor 300. More specifically, in the present embodiment, the compressor 300 has two bottom corners 310, and the two bottom corners 310 are located at opposite ends of the bottom of the compressor 300, and at this time, the two bottom corners 310 may be considered to be spaced apart in the first direction. Each base angle 310 is connected to base plate 200 by at least one vibration dampening foot pad 400. Specifically, in the present embodiment, each base angle 310 is connected to the base plate 200 through a plurality of damper foot pads 400, and the plurality of damper foot pads 400 are arranged at intervals along a second direction, which is perpendicular to the first direction. More specifically, in this embodiment, each base angle 310 is connected to base plate 200 by two shock absorbing footpads 400.
In the present embodiment, as shown in fig. 7 and 8, the damper foot pad 400 is fixed to the base plate 200 of the home appliance 10 by the mounting bolts 500, and one end of the damper foot pad 400 remote from the base plate 200 is connected to the bottom corner 310 of the compressor 300. In this manner, it is very convenient to implement the shock pad 400 to connect the base plate 200 with the base angle 310 of the compressor 300.
In some embodiments, as shown in FIG. 7, mounting bolts 500 are provided to base plate 200 by welding. The damping foot pad 400 is sleeved on the mounting bolt 500 through the mounting channel 422. The gasket 600 is placed on the upper surface of the damper foot pad 400, and the nut 700 is screwed into the top of the mounting bolt 500 to compress the gasket 600, i.e., to fix the damper foot pad 400 to the bottom plate 200 of the home appliance 10.
In some embodiments, as shown in fig. 8, the shaft 510 of the mounting bolt 500 sequentially passes through the mounting channel 422 and the through hole of the base plate 200, the nut 700 is positioned at a side of the base plate 200 remote from the damper foot pad 400, and is screwed into the shaft 510 of the mounting bolt 500 such that the head 520 of the mounting bolt 500 presses against the upper surface of the damper foot pad 400, i.e., such that the damper foot pad 400 is fixed to the base plate 200 of the home appliance 10.
In general, the outer diameter of the mounting bolt 500 is smaller than the inner wall of the mounting channel 422, so that in an ideal state, the mounting bolt 500 can be spaced from the inner wall of the mounting channel 422, the mounting bolt 500 is prevented from being in direct contact with the inner wall of the mounting channel 422, and thus vibration generated by the compressor 300 can completely pass through the entire height of the vibration damping foot pad 400, be optimally absorbed and then be transmitted to the bottom plate 200, and partial vibration generated by the compressor 300 is prevented from not completely passing through the entire height of the vibration damping foot pad 400, namely, being transmitted to the mounting bolt 500 through the contact position of the inner wall of the mounting channel 422 and the mounting bolt 500, and being immediately transmitted to the bottom plate 200, so that the bottom plate 200 resonates, and fundamental frequency (minimum natural frequency) resonance noise is generated. In practical applications, the horizontal component of the vibration force generated during the operation of the compressor 300 may cause the vibration damping foot pad 400 to displace by a small extent, and the mounting bolt 500 is in direct contact with the inner wall of the mounting channel 422, so that part of the vibration generated by the compressor 300 is transferred to the mounting bolt 500 through the contact between the inner wall of the mounting channel 422 and the mounting bolt 500, and immediately transferred to the base plate 200, resulting in resonance of the base plate 200 and generation of resonance noise of fundamental frequency (minimum natural frequency).
To solve the above problems, as shown in fig. 1 to 6, in the present embodiment, the damper foot pad 400 includes a first damper structure 410, a second damper structure 420, and a connection structure 430.
The first vibration reduction structure 410 has a first end 412, a second end 414, and a cavity 416. The first end 412 is coupled to the compressor 300. Second end 414 is connected to base 200. A cavity 416 extends through the first end 412. In this embodiment, the first end 412 may be considered as one end surface of the first vibration reducing structure 410, i.e., the first end surface, and the second end 414 may be considered as one end surface of the first vibration reducing structure 410, i.e., the second end surface.
The second vibration damping structure 420 is inserted into the cavity 416 and is in clearance fit with the cavity 416. The second vibration damping structure 420 has a mounting channel 422. Mounting channel 422 is provided for mounting bolts 500 connecting damper foot pad 400 to base plate 200. In this embodiment, in the arrangement direction of the first end 412 and the second end 414, that is, in the up-down direction of the vibration damping pad 400, two ends of the mounting channel 422 respectively penetrate through two end surfaces of the second vibration damping structure 420, that is, the mounting channel 422 has two open ends, and the two open ends are located on two end surfaces of the second vibration damping structure 420 one by one. In other embodiments, the mounting channel 422 may extend only through the end surface of the second vibration reduction structure 420 that is distal from the second end 414, i.e., the mounting channel 422 may extend only through the upper end surface of the second vibration reduction structure 420.
The connection structure 430 connects the inner wall of the cavity 416 (the first vibration reduction structure 410) with the outer wall of the second vibration reduction structure 420. It should be noted that, in the present embodiment, after the connecting structure 430 connects the inner wall of the cavity 416 (the first vibration reduction structure 410) and the outer wall of the second vibration reduction structure 420, there is still a gap directly between the inner wall of the cavity 416 (the first vibration reduction structure 410) and the outer wall of the second vibration reduction structure 420, that is, in the present embodiment, the connecting structure 430 cannot completely fill the gap between the inner wall of the cavity 416 (the first vibration reduction structure 410) and the outer wall of the second vibration reduction structure 420.
In the related art, the main body portion (other portion than the mounting channel 422) of the damper foot pad 400 is a solid structure, and the lateral rigidity (i.e., horizontal rigidity) of the damper foot pad 400 is large. When the mounting bolts 500 are in direct contact with the inner wall of the mounting channel 422, most of the vibration generated from the compressor 300 is transferred to the mounting bolts 500 through the contact of the inner wall of the mounting channel 422 with the mounting bolts 500 and immediately transferred to the base plate 200, resulting in resonance of the base plate 200, generating fundamental frequency (minimum natural frequency) resonance noise.
In the shock pad 400, the second shock absorbing structure 420 is in clearance fit with the first shock absorbing structure 410 and is connected by the connection structure 430, so that the main body portion of the shock pad 400 (the second shock absorbing structure 420 and the first shock absorbing structure 410) has a hollow portion, is not a solid structure, has smaller transverse rigidity (i.e., horizontal rigidity, i.e., horizontal direction determined by the X axis and the Y axis in the three-dimensional rectangular coordinate system) of the shock pad 400, and further, after the vibration generated by the operation of the compressor 300 is transferred to the first shock absorbing structure 410, less vibration can be transferred to the second shock absorbing structure 420 through the connection structure 430. In this manner, even after the mounting bolt 500 is in direct contact with the inner wall of the mounting channel 422, the vibration that can be transmitted to the mounting bolt 500 through the second vibration reduction structure 420 is very small (very weak), so that the mounting bolt 500 can be prevented from resonating with the bottom plate 200. Therefore, the vibration damping effect of the vibration damping foot pad 400 is good, which is beneficial to the household appliance 10 with low vibration noise.
In this embodiment, the first end 412 is connected to the compressor 300, which means that the bottom corner 310 of the compressor 300 is pressed against the first end 412. Typically, the weight of compressor 300 is relatively high, and base angle 310 of compressor 300 may be stably pressed against first end 412 when compressor 300 is not in operation, and vibrations generated by operation of compressor 300 may cause compressor 300 to separate from damper foot pad 400 when compressor 300 is in operation.
To solve the above problem, in the present embodiment, one end of the second vibration reduction structure 420 protrudes out of the first end 412. One end of the second vibration reduction structure 420 protruding out of the first end 412 is sleeved with a limiting part 424. The stop 424 and the first end 412 define a stop slot 400a. The limit groove 400a serves to prevent the compressor 300 from being separated from the damper foot pad 400. Wherein, the bottom corner 310 of the compressor 300 is provided with a mounting hole 312, and the inner diameter of the mounting hole 312 is smaller than the outer diameter of the limiting part 424. During assembly, the limiting portion 424 passes through the mounting hole 312 in an extrusion deformation manner, so that the bottom corner 310 of the compressor 300 is sleeved on the second vibration reduction structure 420 and is limited between the limiting portion 424 and the first end 412. The limiting groove 400a defined by the limiting portion 424 and the first end 412 can effectively prevent the compressor 300 from being separated from the damper foot pad 400.
It should be understood that, in other embodiments, when the first end 412 is connected to the compressor 300, that means, the base angle 310 of the compressor 300 is pressed against the first end 412, and the first vibration reducing structure 410 is connected to the base angle 310 of the compressor 300 through the connecting piece, the limiting portion 424 may be omitted, and the second vibration reducing structure 420 may not protrude beyond the first end 412.
In this embodiment, the inner diameter of the mounting hole 312 is greater than the outer diameter of the second vibration reduction structure 420. In this way, the probability that the inner wall of the mounting hole 312 of the base angle 310 is directly contacted with the outer wall of the second vibration reduction structure 420 can be reduced, the probability that the vibration generated by the compressor 300 is directly transmitted to the second vibration reduction structure 420 through the base angle 310 can be reduced, and further the vibration transmitted to the mounting bolt 500 through the second vibration reduction structure 420 can be reduced, and the mounting bolt 500 and the bottom plate 200 are further prevented from resonating. It should be noted that, when the compressor 10 is operated, even if the inner diameter of the mounting hole 312 is larger than the outer diameter of the second vibration reduction structure 420, there is a possibility that the inner wall of the mounting hole 312 of the base angle 310 is directly contacted with the outer wall of the second vibration reduction structure 420, but the base angle 310 of the compressor 300 is mainly pressed against the first end 412, and even if the inner wall of the mounting hole 312 of the base angle 310 is directly contacted with the outer wall of the second vibration reduction structure 420, the vibration that can be transmitted to the mounting bolt 500 is very small.
In the present embodiment, in the arrangement direction of the first end 412 and the second end 414, the opening width of the limiting groove 400a is greater than or equal to the thickness of the bottom angle 310. As such, when base angle 310 is assembled to shock pad 400, base angle 310 is generally spaced from stop 424. In this way, the probability that the bottom corner 310 contacts the limiting portion 424 can be reduced, the probability that vibration generated by the compressor 300 is transmitted to the second vibration reduction structure 420 through the bottom corner 310 can be reduced, and further, the vibration transmitted to the mounting bolt 500 through the second vibration reduction structure 420 can be reduced, and further, the mounting bolt 500 and the bottom plate 200 are prevented from resonating. When the compressor 10 is operated, even if the base angle 310 is spaced from the stopper 424, the base angle 310 may contact the stopper 424, but the base angle 310 of the compressor 300 is mainly pressed against the first end 412, and even if the base angle 310 contacts the stopper 424, the vibration that can be transmitted to the mounting bolt 500 is very small.
In this embodiment, a rounded corner 424a is disposed at an end of the limiting portion 424 away from the first end 412. In this way, the stopper 424 is more conveniently passed through the mounting hole 312.
In this embodiment, the limiting portion 424 is annular. The outer diameter of the stop 424 is the same as the inner diameter of the cavity 416. The outer diameter of the limiting portion 424 is smaller than the inner diameter of the cavity 416, the limiting effect of the limiting portion 424 on the bottom corner 310 of the compressor 300 is limited, and the outer diameter of the limiting portion 424 is larger than the inner diameter of the cavity 416, so that the difficulty of the limiting portion 424 penetrating through the mounting hole 312 is increased, and the assembly is not facilitated. Specifically, in the present embodiment, the outer diameter of the stopper 424 is 16mm to 22mm. More specifically, in the present embodiment, the outer diameter of the stopper 424 is 19mm.
In this embodiment, the spacing between the inner wall of the first vibration reduction structure 410 and the outer wall of the second vibration reduction structure 420 is 2mm-8mm. When the outer diameter of the second vibration reduction structure 420 is fixed, the excessive spacing between the inner wall of the first vibration reduction structure 410 and the outer wall of the second vibration reduction structure 420 may result in an excessive outer diameter of the vibration reduction foot pad 400, which is unfavorable for the application of the vibration reduction foot pad 400 in the household appliance 10, while the insufficient spacing between the inner wall of the first vibration reduction structure 410 and the outer wall of the second vibration reduction structure 420 is unfavorable for reducing the transverse rigidity of the vibration reduction foot pad 400. In combination with the above, the interval between the inner wall of the first vibration reduction structure 410 and the outer wall of the second vibration reduction structure 420 is set to be 2mm-8mm. Specifically, in the present embodiment, the interval between the inner wall of the first vibration reduction structure 410 and the outer wall of the second vibration reduction structure 420 is 5mm.
In this embodiment, the outer diameter of the first vibration reduction structure 410 is 25mm-31mm and the outer diameter of the second vibration reduction structure 420 is 11mm-17mm. Specifically, in the present embodiment, the outer diameter of the first vibration reduction structure 410 is 28mm, and the outer diameter of the second vibration reduction structure 420 is 14mm.
In this embodiment, the height of the first vibration reduction structure 410 is 13mm-19mm. Specifically, in the present embodiment, the height of the first vibration reduction structure 410 is 16mm.
In this embodiment, the second vibration reduction structure 420 has an inner diameter of 5.5mm-11.5mm. Specifically, in the present embodiment, the inner diameter of the second vibration reduction structure 420 is 8.5mm.
In this embodiment, the inner wall and the outer wall of the first vibration damping structure 410 are both cylindrical structures. The inner wall and the outer wall of the second vibration reduction structure 420 are also both cylindrical structures.
In other embodiments, the inner wall and the outer wall of the first vibration reduction structure 410 may be other structures, such as a polygonal structure, and the inner wall and the outer wall of the second vibration reduction structure 420 may be other structures, such as a polygonal structure. At this time, the inner diameter and the outer diameter of the first vibration reduction structure 410 are the equivalent inner diameter and the equivalent outer diameter of the inner diameter and the outer diameter, and the inner diameter and the outer diameter of the second vibration reduction structure 420 are the equivalent inner diameter and the equivalent outer diameter of the inner diameter and the outer diameter.
In the present embodiment, the structure of the inner wall of the first vibration reducing structure 410 is the same as the structure of the outer wall of the second vibration reducing structure 420. It is understood that in other embodiments, the structure of the inner wall of the first vibration reduction structure 410 and the structure of the outer wall of the second vibration reduction structure 420 may be different.
In the present embodiment, the thickness of the connection structure 430, the thickness of the second vibration reduction structure 420, and the thickness of the first vibration reduction structure 410 are sequentially increased. As such, first damping structure 410 may have a better support strength and coupling structure 430 may have a better deformability, thereby further reducing the lateral stiffness of damping footpad 400. Specifically, in the present embodiment, the thickness of the first vibration reduction structure 410 is 3.5mm to 5.5mm, the thickness of the second vibration reduction structure 420 is 2.25mm to 3.25mm, and the thickness of the connection structure 430 is 1.2mm to 1.8mm. More specifically, in the present embodiment, the thickness of the first vibration reduction structure 410 is 4.5mm, the thickness of the second vibration reduction structure 420 is 2.75mm, and the thickness of the connection structure 430 is 1.5mm.
In this embodiment, the cavity 416 extends through the second end 414. The end surface of the second vibration reducing structure 420 remote from the first end 412 is flush with the end surface of the second end 414. In this way, when the damper foot pad 400 is fixed to the base plate 200 by the mounting bolts 500, the second damper structure 420 and the first damper structure 410 can both interfere with the base plate 200, so that the damper foot pad 400 can be more firmly fixed to the base plate 200.
It will be appreciated that in other embodiments, the cavity 416 may extend through the second end 414, where the end of the first vibration reduction structure 410 remote from the first end 412 is a closed end, and has a closure plate at the end, and the surface of the closure plate remote from the first end 412 is an end surface of the second end 414. The end surface of the second vibration reducing structure 420 remote from the first end 412 is connected to the surface of the closing plate near the first end 412. In this manner, the closing plate may be fixed to the base plate 200 by the mounting bolts 500, thereby achieving the fixation of the damper foot pad 400 to the base plate 200.
In the present embodiment, the connection structure 430 is disposed obliquely with respect to the arrangement direction of the first end 412 and the second end 414, that is, the connection structure 430 is disposed obliquely with respect to the first vibration reducing structure 410. As such, a portion of the vibration generated by the operation of the compressor 300 may be decomposed into lateral vibration (horizontal vibration) and longitudinal vibration (vertical vibration) along the connection structure 430 during the transmission to the second vibration reduction structure 420 through the connection structure 430, and the longitudinal vibration (vertical vibration) may not act on the second vibration reduction structure 420. Accordingly, the connection structure 430 is disposed obliquely with respect to the first vibration reduction structure 410, so that vibration can be further prevented from being transmitted to the second vibration reduction structure 420, and resonance of the base plate 200 can be further prevented, and fundamental frequency (minimum natural frequency) resonance noise is generated. Also, by adjusting the inclination angle of the connection structure 430, which is inclined with respect to the first vibration reduction structure 410, the lateral vibration (horizontal vibration) and the longitudinal vibration (vertical vibration) can be adjusted, thereby producing the vibration reduction foot pad 400 that satisfies the needs of different applications.
In the present embodiment, the connection structure 430 and the first end 412 form an angle α toward the first end 412 with respect to the arrangement direction of the second end 414, that is, the connection structure 430 forms an angle α toward the first end 412 with respect to the inner wall of the first vibration reduction structure 410. Wherein the included angle alpha is 30-60 degrees. In this way, the lateral vibration (horizontal vibration) and the longitudinal vibration (vertical vibration) can be made substantially the same. Specifically, in the present embodiment, the included angle α is 45 °.
In this embodiment, in the arrangement direction from the first end 412 to the second end 414, that is, in the up-down direction of the damper foot pad 400, the lower end of the connection structure 430 is connected to the inner wall of the first damper structure 410, and the upper end of the connection structure 430 is connected to the outer wall of the second damper structure 420. In this manner, the direction of vibration of the longitudinal vibration (vertical vibration) is directed toward the first end 412, so that the longitudinal vibration (vertical vibration) is sufficiently absorbed by the damper foot pad 400 and then transferred toward the second end 414 (bottom plate 200). It will be appreciated that in other embodiments, the upper end of the connection structure 430 may be connected to the inner wall of the first vibration reduction structure 410, and the lower end of the connection structure 430 may be connected to the outer wall of the second vibration reduction structure 420 in the arrangement direction from the first end 412 to the second end 414.
In this embodiment, the connection structure 430 includes a plurality of reinforcing ribs 432, and the plurality of reinforcing ribs 432 are spaced apart and surround the second vibration reduction structure 420. Thus, not only is the shock pad 400 structurally stable, but also the lateral stiffness of the shock pad 400 is facilitated to be reduced. Also, by providing different numbers of reinforcing ribs 432, both lateral (horizontal) and longitudinal (vertical) vibrations can be accommodated, thereby producing a vibration damping footpad 400 that meets the needs of different applications.
It will be appreciated that in other embodiments, the connection structure 430 may also be a hollow truncated cone structure, wherein a large end of the truncated cone structure is connected with one of the inner wall of the first vibration reduction structure 410 and the outer wall of the second vibration reduction structure 420, and a small end of the truncated cone structure is connected with the other of the inner wall of the first vibration reduction structure 410 and the outer wall of the second vibration reduction structure 420. Thus, the shock absorbing foot pad 400 is more beneficial to the structural stability. Specifically, in the present embodiment, one connection structure 430 includes four reinforcing ribs 432.
In the present embodiment, the connection structure 430 is plural. The plurality of connection structures 430 are arranged at intervals in the arrangement direction of the first end 412 to the second end 414. Thus, the shock absorbing foot pad 400 is advantageous in terms of structural stability. Also, by providing different numbers of the connection structures 430, lateral vibration (horizontal vibration) and longitudinal vibration (vertical vibration) can be adjusted, thereby producing the vibration damping footpad 400 that satisfies different application requirements. Specifically, in the present embodiment, the number of the connection structures 430 is two.
It will be appreciated that the shock absorbing footpad 400 described above has elastic deformation properties. Specifically, in the present embodiment, the material of the shock-absorbing pad 400 is rubber, that is, the material of the first shock-absorbing structure 410, the second shock-absorbing structure 420, the connecting structure 430 and the limiting portion 424 is rubber.
It is understood that the shock pad 400 described above is used in a household appliance 10 having a compressor 300, and that in other embodiments, the shock pad 400 described above may be used in other devices having a compressor 300, which are not the household appliance 10. It will be appreciated that in other embodiments, the damper foot pad 400 described above may be used in a device that does not have a compressor 300, which may or may not be a household appliance 10.
The foregoing description is only of the optional embodiments of the present invention, and is not intended to limit the scope of the invention, and all the equivalent structural changes made by the description of the present invention and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (9)
1. A vibration damping footpad for connecting a compressor and a base plate of a household appliance comprising:
a first vibration reduction structure having a first end connected to the compressor, a second end for connecting to the base plate, and a cavity extending through the first end;
The second vibration reduction structure is inserted in the cavity and is in clearance fit with the cavity, and is provided with a mounting channel for the mounting bolt to pass through, and
The connecting structure is used for connecting the inner wall of the first vibration reduction structure and the outer wall of the second vibration reduction structure, and a gap is reserved between the inner wall of the first vibration reduction structure and the outer wall of the second vibration reduction structure so as to enable a cavity penetrating through the first end to be continuous;
The connecting structure is a plurality of, in the direction of arranging of second end extremely first end, a plurality of connecting structure interval arrangement, connecting structure for first damping structure slope sets up, connecting structure includes a plurality of interval arrangements and encircles the strengthening rib of second damping structure a week, connecting structure is hollow round platform structure.
2. A shock absorbing footpad as claimed in claim 1, wherein the connecting structure is disposed obliquely with respect to the direction of alignment of the first and second ends.
3. A shock absorbing footpad as claimed in claim 2, wherein the connecting structure and the direction of arrangement of the first end and the second end form an angle of 30 ° to 60 ° open towards the first end.
4. A shock absorbing foot pad according to claim 2, wherein in the direction of arrangement of the first end to the second end, the lower end of the connecting structure is connected to the inner wall of the first shock absorbing structure, the upper end of the connecting structure is connected to the outer wall of the second shock absorbing structure, or the upper end of the connecting structure is connected to the inner wall of the first shock absorbing structure, and the lower end of the connecting structure is connected to the outer wall of the second shock absorbing structure.
5. The shock absorbing foot pad of claim 2 wherein the large head end of the frustoconical structure is connected to one of the inner wall of the first shock absorbing structure and the outer wall of the second shock absorbing structure and the small head end of the frustoconical structure is connected to the other of the inner wall of the first shock absorbing structure and the outer wall of the second shock absorbing structure.
6. A shock absorbing footpad as claimed in claim 1, wherein the spacing between the inner wall of the first shock absorbing structure and the outer wall of the second shock absorbing structure is in the range of 2mm to 8mm, and/or
The cavity penetrates through the second end, the end face of the second vibration reduction structure away from the first end is flush with the end face of the second end, and/or
The thickness of the connecting structure, the thickness of the second vibration reduction structure and the thickness of the first vibration reduction structure are sequentially increased.
7. The shock absorbing footpad of claim 1, wherein one end of the second shock absorbing structure protrudes beyond the first end and is sleeved with a limiting portion, the limiting portion and the first end defining a limiting slot for preventing the compressor from being separated from the shock absorbing footpad.
8. A household appliance, comprising:
A bottom plate;
A vibration damping footpad as defined in any one of claims 1-7, the second end being connected to the footpad and
The compressor is provided with a base angle, and the base angle is abutted with the first end.
9. The household appliance of claim 8, wherein one end of the second vibration reduction structure protrudes out of the first end and is sleeved with a limiting part, and the limiting part and the first end define a limiting groove;
When the damping foot pad is provided with the limiting groove, the bottom corner is provided with a mounting hole, and the bottom corner is sleeved on the second damping structure through the mounting hole and is limited between the limiting part and the first end;
The inner diameter of the mounting hole is larger than the outer diameter of the second vibration reduction structure, and/or
The opening width of the limiting groove is larger than or equal to the thickness of the base angle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110533111.9A CN115342588B (en) | 2021-05-14 | 2021-05-14 | Vibration-damping mats and household appliances |
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| CN202110533111.9A CN115342588B (en) | 2021-05-14 | 2021-05-14 | Vibration-damping mats and household appliances |
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| CN115342588A CN115342588A (en) | 2022-11-15 |
| CN115342588B true CN115342588B (en) | 2025-02-28 |
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| CN116928878B (en) * | 2023-08-07 | 2026-01-30 | 珠海格力电器股份有限公司 | Vibration-damping structure and air conditioner |
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| CN202381171U (en) * | 2011-07-15 | 2012-08-15 | 南车青岛四方机车车辆股份有限公司 | Locomotive diesel engine set elastic supporting structure |
| CN212250393U (en) * | 2020-06-18 | 2020-12-29 | 安徽美芝制冷设备有限公司 | Buffer structure and refrigeration plant |
| CN214841957U (en) * | 2021-05-14 | 2021-11-23 | 安徽美芝制冷设备有限公司 | Damping callus on sole and domestic appliance |
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| KR20060091644A (en) * | 2005-02-16 | 2006-08-21 | 엘지전자 주식회사 | Spring mounting structure for supporting linear compressor |
| CN207297271U (en) * | 2017-08-30 | 2018-05-01 | 青岛经济技术开发区海尔热水器有限公司 | Compressor damping system and heat pump water heater |
| CN210240436U (en) * | 2019-04-17 | 2020-04-03 | 百事德机械（江苏）有限公司 | Vibration damper for direct connection fan |
| CN111895036A (en) * | 2020-08-04 | 2020-11-06 | 青岛万宝压缩机有限公司 | Three-dimensional shock insulation system and compressor comprising same |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202381171U (en) * | 2011-07-15 | 2012-08-15 | 南车青岛四方机车车辆股份有限公司 | Locomotive diesel engine set elastic supporting structure |
| CN212250393U (en) * | 2020-06-18 | 2020-12-29 | 安徽美芝制冷设备有限公司 | Buffer structure and refrigeration plant |
| CN214841957U (en) * | 2021-05-14 | 2021-11-23 | 安徽美芝制冷设备有限公司 | Damping callus on sole and domestic appliance |
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