Vibration reduction device and compressor

Abstract

The present application generally relates to the technical field of compressors, and specifically, to a vibration damping device and a compressor. The compressor is equipped with the vibration damping device, the vibration damping device includes a main body and an energy absorbing part, the energy absorbing part is movably installed on the main body, the main body is provided with a first matching part, the energy absorbing part is provided with a second matching part corresponding to the first matching part, the first matching part and the second matching part are arranged opposite to each other, a magnetic field is formed between the first matching part and the second matching part, the first matching part or the second matching part is a metal structure, when the first matching part and the second matching part move relative to each other, the magnetic field can be cut to form an eddy current effect, thereby converting kinetic energy into heat energy, thereby effectively suppressing vibration, the vibration damping device is installed on the peripheral side of the compressor, the energy absorbing part is movably arranged in the radial direction of the compressor, the energy absorbing part absorbs the radial vibration of the compressor, converts the radial vibration of the compressor into heat energy dissipation, and effectively suppresses the radial vibration of the compressor.

Description

Technical Field

[0001] The present application generally relates to the technical field of compressors, and in particular to a vibration reduction device and a compressor. Background Art

[0002] Rotary compressors are widely used in the field of air conditioning due to their simple structure and low cost. Rotary compressors are generally composed of a main cylinder, a liquid storage tank, and rubber pads. Due to the presence of the liquid storage tank, the center of gravity of the compressor is not at the geometric center of the main cylinder. The compressor shakes greatly when working, resulting in loud working noise and also affecting the service life of the compressor. Summary of the invention

[0003] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Application does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0004] In order to solve the technical problem of large radial shaking of existing compressors, the present application provides a vibration reduction device and a compressor.

[0005] In order to achieve the above invention objectives, this application adopts the following technical solutions:

[0006] A vibration reduction device, comprising:

[0007] Main body; and

[0008] An energy-absorbing member, movably connected to the main body member;

[0009] Among them, the main body is provided with a first matching part, and the energy-absorbing part is provided with a second matching part corresponding to the first matching part, a magnetic field is formed between the first matching part and the second matching part, and the first matching part or the second matching part is a metal structure so that the first matching part and the second matching part can cut the magnetic field when they move relative to each other.

[0010] Furthermore, in some embodiments of the present application, the first matching portion is a metal structure, and the second matching portion is a magnetic body.

[0011] Furthermore, in some embodiments of the present application, the main body has a first side wall and a second side wall, the first side wall is disposed back to back with the second side wall, the first side wall is used to contact the part to be damped, the second side wall is connected to the energy absorbing part, and the energy absorbing part can move toward or away from the second side wall.

[0012] Furthermore, in some embodiments of the present application, the main body is connected to a support rod, the energy absorbing part is penetrated by a through hole, the support rod passes through the through hole, and when the support rod is placed horizontally, the center of mass of the energy absorbing part is located below the center line of the support rod passing through the through hole, and the second matching portion is arranged at the bottom of the energy absorbing part.

[0013] Furthermore, in some embodiments of the present application, the main body is provided with an inner cavity for installing the support rod, the two ends of the support rod are respectively connected to the two inner walls opposite to each other in the inner cavity, and limiting members are respectively provided between the energy absorbing member and the two inner walls, and the limiting members are used to limit the movement range of the energy absorbing member.

[0014] Furthermore, in some embodiments of the present application, the main body is an annular structure, the main body is connected to a plurality of the energy-absorbing parts, the plurality of the energy-absorbing parts are distributed along the circumference of the main body, the first matching portion is extended along the circumference of the main body, and the first matching portion is located on the side of the energy-absorbing part in the axial direction toward the main body.

[0015] Furthermore, in some embodiments of the present application, the plurality of energy-absorbing parts include at least one group of two adjacent energy-absorbing parts that are staggered in the circumferential direction of the main body, and at least one of the energy-absorbing parts is disposed corresponding to the middle portion of the main body.

[0016] Furthermore, in some embodiments of the present application, the main body includes a first energy absorbing section and a second energy absorbing section in the circumferential direction, and the distribution density of the energy absorbing parts in the first energy absorbing section is greater than that in the second energy absorbing section.

[0017] Furthermore, in some embodiments of the present application, the gap between the first matching portion and the second matching portion is in the range of 2 mm to 5 mm.

[0018] A compressor is provided with the above-mentioned vibration reduction device.

[0019] Furthermore, in some embodiments of the present application, the above-mentioned compressor includes a liquid storage tank, a main cylinder body and a clamp, the vibration damping device is arranged around the main cylinder body, the energy-absorbing part is movably arranged in the radial direction of the main cylinder body, the clamp is arranged on the outside of the vibration damping device, and the locking head of the clamp and the liquid storage tank are arranged on opposite sides of the main cylinder body.

[0020] It can be seen from the above technical solutions that the advantages and positive effects of the vibration reduction device and compressor of the present application are:

[0021] On the one hand, the present application provides a vibration reduction device, which includes a main body and an energy-absorbing part. The energy-absorbing part can be movably installed on the main body. The main body is provided with a first matching part, and the energy-absorbing part is provided with a second matching part corresponding to the first matching part. The first matching part and the second matching part are arranged opposite to each other, and a magnetic field is formed between the first matching part and the second matching part. The first matching part or the second matching part is a metal structure. When the first matching part and the second matching part move relative to each other, the magnetic field can be cut to form an eddy current effect, thereby converting kinetic energy into heat energy, thereby effectively suppressing vibration.

[0022] The present application scheme also provides a compressor, which is equipped with the above-mentioned vibration reduction device, the vibration reduction device is installed on the circumferential side of the compressor, and the energy-absorbing part is movably arranged in the radial direction of the compressor. The energy-absorbing part absorbs the radial vibration of the compressor, converts the radial vibration of the compressor into heat energy dissipation, and effectively suppresses the radial vibration of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0025] Figure 1 is a schematic structural diagram of a compressor according to an exemplary embodiment.

[0026] Figure 2 is a schematic diagram of a radial cross-sectional structure of a compressor according to an exemplary embodiment.

[0027] Figure 3 1 is a first structural schematic diagram of a vibration reduction device according to an exemplary embodiment.

[0028] Figure 4 is a second structural schematic diagram of a vibration reduction device according to an exemplary embodiment.

[0029] Figure 5 is a third structural schematic diagram of a vibration reduction device according to an exemplary embodiment.

[0030] Figure 6 The diagram is a schematic diagram showing a vibration reduction device including an energy-absorbing component installed in accordance with an exemplary embodiment.

[0031] Figure 7It is a schematic diagram showing the relationship between the gap between the first matching part and the second matching part of a vibration reduction device and the energy dissipation coefficient according to an exemplary embodiment.

[0032] The reference numerals are described as follows:

[0033] 10-main cylinder; 20-clamp; 30-vibration damping device; 40-foot pad; 50-liquid storage tank; 60-fixing parts;

[0034] 21-locking head;

[0035] 31-main body; 32-energy dissipation part; 33-support rod; 34-limiting part; 35-first matching part;

[0036] 311 - inner cavity; 312 - first energy dissipation section; 313 - second energy dissipation section; 314 - first side wall surface; 315 - second side wall surface. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of this application. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0038] The rotary compressor is generally composed of a main cylinder, a liquid storage tank, and a rubber foot pad. Due to the presence of the liquid storage tank, the center of gravity of the compressor is not at the geometric center of the main cylinder. The compressor shakes greatly when working, resulting in loud working noise and also affecting the service life of the compressor. Therefore, in order to solve the technical problem of large radial shaking of the existing compressor, the present application provides a vibration reduction device and a compressor. The compressor is equipped with the vibration reduction device 30. The vibration reduction device 30 The main body 31 includes a main body 31 and an energy absorbing part 32. The energy absorbing part 32 can be movably installed on the main body 31. The main body 31 is provided with a first matching part 35. The energy absorbing part 32 is provided with a second matching part corresponding to the first matching part 35. The first matching part 35 and the second matching part are arranged opposite to each other. A magnetic field is formed between the first matching part 35 and the second matching part. The first matching part 35 or the second matching part is a metal structure. When the first matching part 35 and the second matching part move relative to each other, the magnetic field can be cut to form an eddy current effect, thereby converting kinetic energy into heat energy, thereby effectively suppressing vibration. The vibration reduction device 30 is installed on the peripheral side of the main cylinder body 10 of the compressor. The energy absorbing part 32 is movably arranged in the radial direction of the compressor. The energy absorbing part 32 absorbs the radial vibration of the compressor, converts the radial vibration of the compressor into heat energy dissipation, and effectively suppresses the radial vibration of the compressor.

[0039] It can be understood that when the first matching part 35 is a metal structure, the second matching part is a magnetic body, and the side of the second matching part facing the first matching part 35 is magnetic, thereby generating a magnetic field; when the second matching part is a metal structure, the first matching part 35 is a magnetic body, and the side of the first matching part 35 facing the second matching part is magnetic, so that when the first matching part 35 and the second matching part move relative to each other, the magnetic field is cut to form an eddy current effect, thereby converting kinetic energy into thermal energy.

[0040] Figure 1 is a schematic structural diagram of a compressor according to an exemplary embodiment. Figure 2 is a schematic diagram of a radial cross-sectional structure of a compressor according to an exemplary embodiment. Figure 3 is a first structural schematic diagram of a vibration reduction device 30 according to an exemplary embodiment. Figure 4 is a second structural schematic diagram of a vibration reduction device 30 according to an exemplary embodiment. Figure 5 is a third structural schematic diagram of a vibration reduction device 30 according to an exemplary embodiment. Figure 6 FIG. 1 is a schematic diagram showing a vibration reduction device 30 including an energy absorbing component 32 in an installed state according to an exemplary embodiment.

[0041] Combination Figure 1-6As shown, the present application provides a vibration reduction device 30 and a compressor, the compressor is equipped with the vibration reduction device 30 , and the compressor also includes a main cylinder 10 , a clamp 20 , the vibration reduction device 30 , a foot pad 40 , a liquid storage tank 50 and a fixing part 60 .

[0042] Three foot pads 40 are installed at the bottom of the main cylinder 10, and the liquid storage tank 50 is fixedly connected to the main cylinder 10 through the fixing member 60. The vibration reduction device 30 includes a main body 31 and an energy-absorbing member 32 movably installed on the main body 31. The three foot pads 40 realize the axial vibration reduction of the main cylinder 10 within a certain range, and the vibration reduction device 30 reduces the radial vibration of the main cylinder 10. The vibration reduction device 30 is arranged around the main cylinder 10, and the energy-absorbing member 32 is movably arranged in the radial direction of the main cylinder 10. The clamp 20 is arranged outside the vibration reduction device 30, and the locking head 21 of the clamp 20 and the liquid storage tank 50 are arranged on opposite sides of the main cylinder 10. The clamp 20 is made of a material with strong rigidity, such as stainless steel, to ensure that the main cylinder 10 fits the main body 31, which is conducive to the transmission of vibration.

[0043] In the embodiment of the present application, the main body 31 is an annular structure, and the main body 31 is sleeved outside the main cylinder body 10. The main body 31 is located above the middle part of the main cylinder body 10, and can also be as close as possible to the connection position between the fixing member 60 and the main cylinder body 10. The energy-absorbing member 32 can reciprocate in the radial direction of the main cylinder body 10, and the reciprocating movement of the energy-absorbing member 32 absorbs part of the vibration. The main body 31 is provided with a first matching part 35, and the energy-absorbing member 32 is provided with a second matching part. The first matching part 35 is a metal structure. Preferably, the material of the first matching part 35 is copper. The second matching part can be a magnetic part. Preferably, a permanent magnet can be selected for the second matching part. The side of the second matching part facing the first matching part 35 is magnetic, so that the first matching part 35 cuts the magnetic field when the second matching part moves relative to the first matching part, forming an eddy current effect, thereby converting kinetic energy into heat energy.

[0044] refer to Figure 3 and Figure 6As shown, the main body 31 is an annular structure, and the main body 31 is provided with an annular inner cavity 311 extending in the circumferential direction, the support rod 33, the energy absorbing part 32, and the first matching part 35 are located in the inner cavity 311, the first matching part 35 is an annular copper plate, and the first matching part 35 is arranged at the bottom of the inner cavity 311, and the two ends of the support rod 33 are respectively connected to the two inner side walls arranged opposite to each other in the inner cavity 311, and the energy absorbing part 32 is penetrated by a through hole, and the support rod 33 is penetrated by the through hole, and the center of mass of the energy absorbing part 32 is located below the center line of the through hole of the support rod 33, and the second matching part is arranged at the bottom of the energy absorbing part 32, and the energy absorbing part 32 and the two inner side walls are respectively provided with a limiting part 34, and the limiting part 34 is used to limit the moving range of the energy absorbing part 32. The limiting part 34 can be a spring, and the spring is sleeved on the support rod 33, and one end of the limiting part 34 is connected to the inner side wall of the inner cavity 311, and the other end of the limiting part 34 is connected to the energy absorbing part 32.

[0045] Those skilled in the art can select springs with larger elongation and moderate elasticity to avoid affecting the eddy current effect. At the same time, it can prevent the energy-absorbing part 32 from excessively moving and hitting the inner wall of the inner cavity 311, avoid generating other vibrations, and ensure the vibration reduction effect. In some embodiments, the limiter can be a vibration-absorbing pad installed on the energy-absorbing part 32, or a chain connecting the main part 31 and the energy-absorbing part 32 respectively.

[0046] In the embodiment of the present application, a plurality of energy absorbing parts 32 are distributed along the circumferential direction of the main body 31, the first matching portion 35 is extended along the circumferential direction of the main body 31, and the first matching portion 35 is located on the side of the energy absorbing part 32 facing the axial direction of the main body 31, the plurality of energy absorbing parts 32 includes at least one group of two adjacent energy absorbing parts 32 staggered in the circumferential direction of the main body 31, and at least one energy absorbing part 32 is arranged corresponding to the middle part of the main body 31.

[0047] The distances between the multiple energy-absorbing parts 32 and the first matching part 35 are distributed in an unequal manner. The initial energy absorption coefficients of different energy-absorbing parts 32 are adjusted by distance, that is, different energy-absorbing parts 32 are excited to move at different vibration frequencies, so as to achieve the purpose of vibration reduction in a wider frequency band, thereby realizing the full-band vibration reduction target covering the operation process of the compressor.

[0048] In combination with the vibration state of the compressor, the main body 31 is divided into a first energy absorbing section 312 and a second energy absorbing section 313 in the circumferential direction. The distribution density of the energy absorbing parts 32 in the first energy absorbing section 312 is greater than that in the second energy absorbing section 313. Figure 3-5As shown, there are two first energy absorbing sections 312, the first energy absorbing section 312 is between the dotted line a and the dotted line b and between the dotted line c and the dotted line d, the second energy absorbing section 313 is between the dotted line a and the dotted line d and between the dotted line b and the dotted line c, and the two first energy absorbing sections 312 are located on opposite sides of the main body 31. The distribution density of the energy absorbing parts 32 in the first energy absorbing section 312 is greater than the distribution density in the second energy absorbing section 313. After the main body 31 is sleeved on the main cylinder body 10, the first energy absorbing section 312 corresponds to one side of the displacement direction of the compressor center of mass, and the density of the energy absorbing parts 32 at the first energy absorbing end is appropriately increased to achieve a better vibration reduction effect. Preferably, in the first energy absorbing section 312, the gap between the energy absorbing part 32 and the first matching part 35 is controlled between 2mm and 3mm to improve the energy absorption coefficient of the energy absorbing part 32.

[0049] refer to Figure 7 As shown, Figure 7 1 is a schematic diagram showing the relationship between the gap between the first matching part 35 and the second matching part of a vibration reduction device 30 and the energy dissipation coefficient according to an exemplary embodiment. When the gap between the energy dissipation part 32 and the first matching part 35 is between 2-5 mm, the energy dissipation effect is better.

[0050] refer to Figure 4 As shown, Figure 4 This is the structural diagram of the second vibration reduction device 30 of the present application. The main body 31 is in the shape of an annular sheet. The inner ring surface of the main body 31 is connected to multiple energy-absorbing parts 32. After the vibration reduction device 30 is installed, the support rod 33 is in direct contact with the main cylinder body 10. Based on this structure, it also has a vibration reduction effect, but the vibration force transmission between the main cylinder body 10 and the vibration reduction device 30 is weak.

[0051] refer to Figure 5 As shown, Figure 5 This is a structural diagram of the third vibration reduction device 30 of the present application. The main body 31 is an annular structure. The first side wall surface 314 of the main body 31 is an inner annular surface, and the second side wall surface 315 of the main body 31 is an outer annular surface. The second side wall surface 315 of the main body 31 is connected to a support rod 33. The support member is radially extended. The energy absorbing member 32 is penetrated by a through hole. The support rod 33 passes through the through hole. The energy absorbing member 32 can reciprocate in the radial direction. When the support rod 33 is placed horizontally, the center of mass of the energy absorbing member 32 is located below the center line of the through hole through which the support rod 33 passes. The second matching portion is arranged at the bottom of the energy absorbing member 32 to ensure that the energy absorbing member 32 does not flip during the process of relative motion with the first matching portion 35 to cut the magnetic field to form eddy currents. The magnetic field cutting area is maximized, and as much vibration energy as possible is converted into heat energy dissipation to suppress the vibration of the compressor.

[0052] refer to Figure 7As shown, the energy absorbing part 32 includes a first energy absorbing part and a second energy absorbing part. The first energy absorbing part is a hemispherical structure, and the second energy absorbing part can be a cubic structure with a larger plane. The first energy absorbing part has a round surface and an arc surface, and the round surface of the first energy absorbing part is connected to the second energy absorbing part. In the embodiment of the present application, the energy absorbing part 32 adopts the form of a combination of a magnet and a metal block to reduce material costs. The first energy absorbing part can be made of stainless steel or lead. The second energy absorbing part can be divided into an upper and lower part. The upper part can be made of stainless steel or lead, and the lower part is used as a second matching part. A magnet is used to make the second matching part facing the first matching part 35 magnetic.

[0053] There are multiple energy absorbing parts 32, which are distributed in the circumferential direction of the main body 31. The second matching part is designed as an annular copper plate. When the energy absorbing part 32 is placed horizontally, the second matching part is located below the energy absorbing part 32. In this embodiment, the downward side of the energy absorbing part 32 is magnetic and is arranged parallel to the copper plate.

[0054] The support rod 33 is provided with two limit members 34, and the limit members 34 have a certain elasticity. Figure 5 In the embodiment, both sides of the moving direction of the energy absorbing member 32 are connected to the limiting members 34 respectively. The limiting member 34 on the side of the energy absorbing member 32 facing the second side wall surface 315 is connected to the second side wall surface 315, and the limiting member 34 on the side of the energy absorbing member 32 facing away from the second side wall surface 315 is connected to the support rod 33. The limiting member 34 limits the moving range of the energy absorbing member 32. Figure 5 In the structure shown, the energy dissipation member 32 is prevented from being separated from the support rod 33 .

[0055] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0056] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the general inventive concept of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A vibration reduction device, characterized in that: include: a main body (31); and An energy-absorbing member (32) movably connected to the main body member (31); The main body (31) is provided with a first matching portion (35), the energy dissipation component (32) is provided with a second matching portion corresponding to the first matching portion (35), a magnetic field is formed between the first matching portion (35) and the second matching portion, and the first matching portion (35) or the second matching portion is a metal structure so that the first matching portion (35) and the second matching portion cut the magnetic field when they move relative to each other; the main body (31) is an annular structure, the main body (31) is connected to a plurality of the energy dissipation components (32), and the plurality of the energy dissipation components (32) are arranged along the main body ( The main body (31) is provided with a circumferential distribution of the first matching portion (35), the first matching portion (35) is extended along the circumferential direction of the main body (31), and the first matching portion (35) is located on the side of the energy absorbing member (32) facing the axial direction of the main body (31); the main body (31) comprises two first energy absorbing sections (312) and two second energy absorbing sections (313) in the circumferential direction, the distribution density of the energy absorbing member (32) in the first energy absorbing sections (312) is greater than the distribution density in the second energy absorbing sections (313), and the two first energy absorbing sections (312) are located on opposite sides of the main body (31).

2. The vibration reduction device according to claim 1, characterized in that: The first matching portion (35) is a metal structure, and the second matching portion is a magnetic body.

3. The vibration reduction device according to claim 1, characterized in that: The main body (31) comprises a first side wall surface (314) and a second side wall surface (315); the first side wall surface (314) and the second side wall surface (315) are arranged in back-to-back relation; the first side wall surface (314) is used to contact the part to be damped; the second side wall surface (315) is connected to the energy absorbing part (32); and the energy absorbing part (32) is capable of moving towards or away from the second side wall surface (315).

4. The vibration reduction device according to claim 1, characterized in that: The main body (31) is connected to a support rod (33), the energy absorbing member (32) is penetrated by a through hole, the support rod (33) passes through the through hole, and when the support rod (33) is placed horizontally, the center of mass of the energy absorbing member (32) is located below the center line of the support rod (33) passing through the through hole, and the second matching portion is arranged at the bottom of the energy absorbing member (32).

5. The vibration reduction device according to claim 4, characterized in that: The main body (31) is provided with an inner cavity (311) for installing the support rod (33), the two ends of the support rod (33) are respectively connected to two inner side walls of the inner cavity (311) arranged opposite to each other, and limiting members (34) are respectively arranged between the energy consuming member (32) and the two inner side walls, and the limiting members (34) are used to limit the movement range of the energy consuming member (32).

6. The vibration reduction device according to claim 1, characterized in that: The plurality of energy absorbing parts (32) include at least one group of two adjacent energy absorbing parts (32) which are staggered in the circumferential direction of the main body (31), and at least one energy absorbing part (32) is arranged corresponding to the middle part of the main body (31).

7. The vibration reduction device according to any one of claims 1 to 6, characterized in that: The gap between the first matching portion (35) and the second matching portion ranges from 2 mm to 5 mm.

8. A compressor, characterized in that: A vibration reduction device according to any one of claims 1 to 7 is installed.

9. The compressor according to claim 8, characterized in that The compressor comprises a liquid storage tank (50), a main cylinder body (10) and a clamp (20); the vibration damping device is arranged around the main cylinder body (10); the energy absorbing component (32) is movably arranged in the radial direction of the main cylinder body (10); the clamp (20) is arranged outside the vibration damping device; and the locking head (21) of the clamp (20) and the liquid storage tank (50) are arranged on opposite sides of the main cylinder body (10).

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