Compressor assembly and refrigeration equipment

Abstract

The present invention discloses a compressor assembly, and also discloses a refrigeration device having the compressor assembly. The compressor assembly includes a compressor housing, a liquid receiver, and a counterweight structure. The liquid receiver is connected to the compressor housing. The counterweight structure includes a cantilever member and a counterweight member, and the counterweight member is connected to at least one of the compressor housing and the liquid receiver through the cantilever member. By designing the counterweight structure as an independent structure, this structure can be placed on any rotating machinery to achieve a vibration damping effect, enabling modular vibration damping, with the advantages of convenient installation and high reliability. In addition, the cantilever-type counterweight installation method can, while increasing the moment of inertia of the rotating machinery, also act as a dynamic vibration absorber, playing a better role in suppressing local vibration noise at the connection points.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration, and particularly to a compressor assembly and a refrigeration device. Background Art

[0002] During the operation of the compressor housing, vibrations and noises will occur. In order to reduce the noise of the compressor housing during operation, in the related art, generally, the compressor housing is fixed to the installation chassis of the compressor housing through elastic foot pads. Although it can reduce the vibrations and noises during the operation of the compressor housing to a certain extent, the noises and vibrations during the operation of the compressor housing are still very large. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a compressor assembly, which can improve the vibration damping effect.

[0004] The present invention also provides a refrigeration device having the above compressor assembly.

[0005] The compressor assembly according to the first aspect embodiment of the present invention includes a compressor, a liquid reservoir, and a weight structure. The compressor includes a compressor housing, and the liquid reservoir is connected to the compressor housing; the weight structure includes a cantilever member and a weight member, and the weight member is connected to at least one of the compressor housing and the liquid reservoir through the cantilever member.

[0006] The compressor assembly according to the embodiment of the present invention has at least the following beneficial effects: By designing the weight structure into an independent structure, this structure can be placed on any rotating machine to achieve the vibration damping effect, and modular vibration damping can be realized, with the advantages of convenient installation and high reliability. In addition, the cantilever type weight installation method can, while increasing the moment of inertia of the rotating machine, also play the role of a dynamic vibration absorber, and can better suppress the local vibration and noise at the connection.

[0007] According to some embodiments of the present invention, the weight member is located below the liquid reservoir.

[0008] According to some embodiments of the present invention, the cantilever member is connected to the lower part of the compressor housing.

[0009] According to some embodiments of the present invention, the cantilever member is connected to the bottom of the liquid reservoir.

[0010] According to some embodiments of the present invention, the cantilever member is connected to the lower part of the compressor housing, and the weight member is located on the side of the compressor housing away from the liquid reservoir.

[0011] According to some embodiments of the present invention, the counterweight includes a container and a counterweight material. The container is provided with a cavity, and the counterweight material is filled in the cavity.

[0012] According to some embodiments of the present invention, the counterweight material is a granular solid material.

[0013] According to some embodiments of the present invention, the counterweight material includes cement.

[0014] According to some embodiments of the present invention, the weight of the counterweight structure is m1, and the weight of the compressor assembly is m, satisfying: m1 / m≥4%.

[0015] The refrigeration device according to the embodiments of the second aspect of the present invention includes the compressor assembly according to the embodiments of the first aspect of the present invention.

[0016] The refrigeration device according to the embodiments of the present invention has at least the following beneficial effects: By adopting the compressor assembly according to the embodiments of the first aspect of the present invention, it has the advantages of convenient installation and high reliability. In addition, the cantilever counterweight installation method can increase the moment of inertia of the rotating machinery while acting as a dynamic vibration absorber, and can effectively suppress the local vibration and noise at the connection.

[0017] The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the drawings and embodiments, where:

[0019] Figure 1 is a schematic diagram of a compressor assembly in the related art;

[0020] Figure 2 is a schematic diagram of a compressor assembly according to an embodiment of the present invention;

[0021] Figure 3 is a schematic diagram of a compressor assembly according to another embodiment of the present invention;

[0022] Figure 4 is a schematic diagram of a compressor assembly according to another embodiment of the present invention;

[0023] Figure 5 is a schematic diagram of a compressor assembly according to another embodiment of the present invention;

[0024] Figure 6 is a schematic diagram of a compressor assembly according to another embodiment of the present invention;

[0025] Figure 7Schematic diagram of a compressor assembly according to another embodiment of the present invention;

[0026] Figure 8 Noise comparison diagram of a compressor assembly without a counterweight structure and a compressor assembly with a counterweight structure according to an embodiment of the present invention;

[0027] Figure 9 Vibration effect comparison diagram of a compressor assembly with cantilever members of different lengths according to an embodiment of the present invention;

[0028] Figure 10 Vibration effect comparison diagram of the counterweight structure of a compressor assembly according to an embodiment of the present invention installed at different positions.

[0029] Reference numerals:

[0030] 101, compressor housing; 102, liquid reservoir; 103, upper cup; 104, main cup; 105, lower cup; 106, exhaust pipe; 107, suction pipe;

[0031] 201, cantilever member; 202, counterweight member; 203, first connection portion; 204, second connection portion; 205, container; 206, counterweight material;

[0032] 501, axis of rotation. Detailed description of the embodiments

[0033] The embodiments of the present invention are described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout the drawings. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0034] In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0035] In the description of the present invention, the meaning of "a number of" is one or more, the meaning of "multiple" is two or more, "greater than", "less than", "exceeding", etc. are understood not to include the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0036] In the description of the present invention, unless otherwise clearly defined, terms such as "set", "install", "connect", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0037] The compressor is the heart of a refrigeration device. It is a driven fluid machine that raises low-pressure gas to high-pressure gas. It sucks in low-temperature and low-pressure refrigerant gas from the suction pipe, compresses it by the piston driven by the motor operation, and then discharges the high-temperature and high-pressure refrigerant gas to the exhaust pipe, providing power for the refrigeration cycle.

[0038] In a compressor, the liquid receiver is an important component. The liquid receiver is installed at the air-conditioning evaporator and the compressor suction pipe part, and it is a protective component to prevent liquid refrigerant from flowing into the compressor and causing liquid hammer. During the operation of the air-conditioning system, it is impossible to ensure that all the refrigerant is completely vaporized; that is, the refrigerant coming out of the evaporator will have liquid refrigerant entering the liquid receiver. Since the unvaporized liquid refrigerant is heavier than the gas, it will directly fall to the bottom of the liquid receiver cylinder, and the vaporized refrigerant will enter the compressor through the outlet of the liquid receiver, thus preventing the compressor from sucking in liquid refrigerant and causing liquid hammer.

[0039] During the operation of the compressor, vibration and noise will be generated. In order to reduce the noise during the operation of the compressor, in the related art, generally, the compressor is fixed to the installation chassis of the compressor through elastic feet pads. Although it can reduce the vibration and noise during the operation of the compressor to a certain extent, the noise and vibration during the operation of the compressor are still very large.

[0040] Then, through research, it is found that the overall weight of the compressor is an important factor affecting the vibration of the compressor. In the compressors in the related art, due to the relatively light weight of the compressor, the stability of the compressor during operation is poor, resulting in large working vibrations, which affect the working performance and reliability of the compressor, and make the working noise of the compressor relatively large. In the related art, the means of adding counterweights to the compressor or the liquid receiver is used to increase the rotational inertia of the whole compressor, but the improved effect still cannot meet the requirements.

[0041] Next, refer to Figures 1 to 10 , and illustrate how the compressor assembly and refrigeration device of the embodiments of the present invention solve the problems of noise and vibration.

[0042] Refer to Figure 1As shown, it can be understood that in the related art, the compressor assembly includes a compressor 101 and a liquid reservoir 102, the compressor includes a compressor housing 101, a main bearing assembly, a pump body and a secondary bearing assembly, the main bearing assembly, the pump body and the secondary bearing assembly are arranged in the compressor housing 101, the main bearing assembly and the secondary bearing assembly are respectively arranged at the axial ends of the cylinder assembly, the air inlet hole of the pump body is formed on the main bearing assembly or the secondary bearing assembly, and the exhaust pipe 106 of the liquid reservoir 102 is connected to the air inlet hole of the pump body.

[0043] The liquid reservoir 102 includes an upper cup body 103, a main cup body 104 and a lower cup body 105. The liquid reservoir 102 is provided with an exhaust pipe 106 and an intake pipe 107. The upper cup body 103, the main cup body 104 and the lower cup body 105 are connected in sequence from top to bottom to form a complete container 205 cup body. The upper cup body 103 is also connected to the intake pipe 107, and the lower cup body 105 is connected to the exhaust pipe 106. The exhaust pipe 106 is connected to the compressor.

[0044] It can be understood that in the traditional three-stage liquid storage container 102, the upper cup body 103, the main cup body 104 and the lower cup body 105 are welded to each other to form a complete container 205 cup body. The various parts are combined together by welding, which can reduce the difficulty of production and manufacturing and facilitate the processing of each part.

[0045] It is understood that the upper cup 103, main cup 104, and lower cup 105 of the spin-on liquid reservoir 102 are integrally formed. Specifically, the cup of the liquid reservoir 102 is a metal cylinder with its ends extruded. Specifically, a metal cylinder with an appropriate inner diameter is selected based on actual needs. The inner diameter is then narrowed at both ends by extrusion to form the upper cup 103 and lower cup 105. The main body of the metal cylinder remains as the main cup 104, resulting in an integral formation of the upper, main, and lower cups 103, 104, and 105. Simultaneously, the openings at both ends of the metal cylinder are extruded to form an exhaust port for connecting to the exhaust pipe 106 and an intake port for connecting to the intake pipe 107, respectively.

[0046] It is understood that the exhaust pipe 106 is welded to the lower cup body 105. Specifically, the exhaust pipe 106 and the lower cup body 105 are connected together through a flame brazing process. Flame brazing uses a flame formed by the combustion of a mixture of a combustible gas or liquid fuel and oxygen or air to perform brazing heating. Flame brazing is highly versatile, has a relatively simple process, is easy to master the operating techniques, and is also easy to automate. Flame brazing can be performed in air and does not require a shielding gas. At the same time, a wide range of brazing materials can be selected, ranging from low-temperature silver-based brazing materials to high-temperature nickel- and copper-based brazing materials. There are almost no requirements for the shape of the brazing material, making it simple and easy to use. The flame brazing process belongs to the prior art and will not be described in detail here.

[0047] In addition, the exhaust pipe 106 and the lower cup 105 can also be connected together by high-frequency induction brazing process. Induction brazing is a welding method that uses high-frequency, medium-frequency or power-frequency induction current as the heat source. The metal workpieces to be welded are placed inside the induction coil. By passing high-frequency alternating current, an induced electromagnetic field is generated. An induced electromotive force is coupled at the connection between the exhaust pipe 106 and the lower cup 105, and an induced eddy current is formed on the metal surface. Relying on the eddy current generated on the metal surface to heat up, and applying brazing powder to the welding part. When the melting temperature of the filler metal is reached, welding can be carried out. It is fast and efficient, and at the same time has less pollution and is beneficial to environmental protection. The induction brazing process belongs to the prior art and will not be elaborated here.

[0048] In addition, the exhaust pipe 106 and the lower cup 105 can also be connected together by CMT (Cold Metal Transfer technology) welding process. The CMT welding process uses two sets of wire feeding mechanisms that work together before and after, so that the wire feeding process is intermittent wire feeding. The rear wire feeding mechanism feeds the wire forward at a constant wire feeding speed, while the front wire feeding mechanism controls the pulsed wire feeding at a frequency of Hz according to the instructions of the control system. The digital welding control system can automatically reduce the welding current according to the start time of the arc generation until the arc goes out, and adjust the pulsed wire feeding. After the molten droplet drips from the wire, the digital control system raises the welding current again, further feeding the wire forward. After that, a welding arc is regenerated and a new round of welding process begins. This alternating change between "cold" and "hot" greatly reduces the generation of welding heat and reduces the conduction of welding heat in the welded parts. The CMT welding process belongs to the prior art and will not be elaborated here.

[0049] It can be understood that the suction pipe 107 and the upper cup 103 can also be welded by the above-mentioned welding methods.

[0050] Refer to Figures 2 to 7 As shown, a compressor assembly according to an embodiment of the present invention includes a compressor housing 101, a liquid reservoir 102 and a weight structure. The weight structure can be connected to the compressor housing 101 or the liquid reservoir 102, and the weight structure can be connected to the upper, middle or lower part of the compressor housing 101. Similarly, the weight structure can be connected to the upper, middle or lower part of the liquid reservoir 102.

[0051] It should be noted that in some other embodiments, weight structures can be installed on both the compressor housing 101 and the liquid reservoir 102 at the same time.

[0052] Refer to Figures 2 to 7As shown, it can be understood that the counterweight structure includes a cantilever member 201 and a counterweight member 202. The cantilever member 201 serves as a connection and is used to connect the counterweight member 202 to the compressor housing 101 or the accumulator 102. Here, the counterweight structure is made into an independent structure, so modular vibration reduction can be achieved. That is, the counterweight structure can be placed on any rotating machinery to achieve the vibration reduction effect, with the advantages of convenient installation and high reliability.

[0053] Referring to Figure 8 As shown, it can be understood that the abscissa represents the frequency (unit: Hz), and the ordinate represents the noise value (unit: dB). Figure 8 The filled bars in Figure 1 represent the values obtained from the test of the compressor assembly without the counterweight structure, and the unfilled bars represent Figure 4 the values obtained from the test of the compressor assembly with the counterweight structure set therein.

[0054] It can be seen that by adopting the compressor assembly of the embodiment of the present invention, the noise value can be effectively reduced at multiple frequencies. Especially when the frequency reaches 4000 Hz, the noise value obtained from the test of the compressor assembly without the counterweight structure reaches 69 dB, while the noise value obtained from the test of the compressor assembly of the embodiment of the present invention is only 63.6 dB, and the noise reduction effect is obvious.

[0055] It can be understood that the cantilever member 201 can also increase the distance between the counterweight member 202 and the center of the rotating structure, playing a role in enhancing the vibration reduction effect. Research shows that when the counterweight structure is far from the center of the rotating structure, the vibration reduction effect is better because, with the weight of the counterweight structure remaining unchanged, the farther the counterweight structure is from the center of the rotating structure, the greater the moment of inertia.

[0056] Among them, the moment of inertia is a measure of the inertia (the property of a rotating object to maintain its uniform circular motion or static state) when a rigid body rotates about an axis. For a particle, the moment of inertia I = mr 2 , where m is its mass and r is the perpendicular distance between the particle and the axis of rotation.

[0057] The role of the moment of inertia in rotational dynamics is equivalent to that of mass in linear dynamics. It can be formally understood as the inertia of an object with respect to rotational motion and is used to establish the relationships among several quantities such as angular momentum, angular velocity, torque, and angular acceleration.

[0058] The moment of inertia only depends on the shape of the rigid body, the mass distribution, and the position of the axis of rotation, and is independent of the rotational state of the rigid body about the axis (such as the magnitude of the angular velocity). Therefore, when the shape and mass distribution of the rigid body remain unchanged, different moments of inertia can be obtained by changing the position of the axis of rotation.

[0059] Therefore, the cantilever 201 can increase the distance between the counterweight 202 and the center of the rotating structure, increase the moment of inertia, and play a role in enhancing the vibration damping effect.

[0060] Referring to Figure 9 as shown, it can be understood that the abscissa represents different schemes, and the ordinate represents the vibration value (unit: m / s2). Figure 9 The filled bars in it represent the vibration values detected in the middle of the compressor housing 101, and the unfilled bars represent the vibration values detected in the middle of the cup of the liquid receiver 102. The scheme without a counterweight structure in the abscissa is the one adopted in Figure 1 as shown; the scheme representing the length of the cantilever 201 is the position of the counterweight structure set in Figure 4 it.

[0061] Referring to Figure 9 as shown, it can be understood that when no counterweight structure is set, the value detected in the middle of the compressor housing 101 is 15.1 m / s 2 , and the value detected in the middle of the cup of the liquid receiver 102 is 13.3 m / s 2 ; when a counterweight structure is set and the length of the cantilever 201 is 20 mm, the value detected in the middle of the compressor housing 101 is 14.2 m / s 2 , and the value detected in the middle of the cup of the liquid receiver 102 is 12.5 m / s 2 ; when a counterweight structure is set and the length of the cantilever 201 is 50 mm, the value detected in the middle of the compressor housing 101 is 12.4 m / s 2 , and the value detected in the middle of the cup of the liquid receiver 102 is 10.6 m / s 2 ; when a counterweight structure is set and the length of the cantilever 201 is 100 mm, the value detected in the middle of the compressor housing 101 is 10.7 m / s 2 , and the value detected in the middle of the cup of the liquid receiver 102 is 9.8 m / s 2 .

[0062] Therefore, it can be seen that as the length of the cantilever 201 increases, the distance between the counterweight 202 and the center of the rotating structure becomes larger, the moment of inertia also increases, and the vibration damping effect is more obvious.

[0063] In addition, the natural frequency of the counterweight structure can be adjusted to suppress vibrations at different frequencies. The counterweight 202 is equivalent to a mass, and the cantilever 201 is equivalent to a spring. A specific system natural frequency can be formed between the counterweight 202 and the cantilever 201. The length, thickness, or width of the cantilever 201 will affect the stiffness of the spring, thereby changing the natural frequency of this system.

[0064] It can be understood that this cantilever type counterweight installation method can, while increasing the moment of inertia of the rotating machinery, also function as a dynamic vibration absorber, playing a better role in suppressing local vibration and noise at the connection. Among them, a dynamic vibration absorber refers to a device that uses a resonance system to absorb the vibration energy of an object to reduce the vibration of the object. Its principle is to attach a mass-spring resonance system to the vibrating object, and the reaction force generated by this additional system during resonance can reduce the vibration of the vibrating object.

[0065] Refer to Figures 2 to 7 As shown, it can be understood that the cantilever member 201 includes a first connecting portion 203 and a second connecting portion 204. The first connecting portion 203 is used to connect the compressor housing 101 or the liquid receiver 102. The first connecting portion 203 is arranged vertically, and the second connecting portion 204 is arranged horizontally, that is, the first connecting portion 203 is perpendicular to the second connecting portion 204, and the width of the first connecting portion 203 is greater than the width of the second connecting portion 204.

[0066] By setting the first connecting portion 203, the contact area between the cantilever member 201 and the compressor housing 101 or the liquid receiver 102 can be increased, thereby increasing the connection stability. And because the second connecting portion 204 is arranged horizontally and connects the counterweight member 202, by increasing the vertically arranged first connecting portion 203, it is convenient to connect with the side wall of the compressor housing 101 or the side wall of the liquid receiver 102, improving the convenience of assembly. It can be understood that the cantilever member 201 can be welded to the compressor housing 101 or the liquid receiver 102 or connected by fasteners such as screws.

[0067] Refer to Figures 2 to 7 As shown, it can be understood that the counterweight member 202 includes a container 205 and a counterweight material 206. The container 205 is provided with a cavity (not shown in the figure), and the container 205 is also provided with an opening (not shown in the figure) that cooperates with the cavity. The counterweight material 206 is filled into the cavity through the opening.

[0068] By filling the counterweight material 206, the moment of inertia of the compressor assembly can be changed, making the counterweight structure more convenient to install. At the same time, the weight of the counterweight material 206 is also convenient to adjust to adapt to different working conditions or equipment.

[0069] Low-cost solid structures can be filled inside the container 205. Since solid materials have a higher density than liquid materials, the vibration damping effect is better under the condition of the same volume. In addition, small particle solid materials can be placed inside the cavity. When the counterweight structure moves together with the vibrating object, the small particle solid structures inside the cavity collide with each other, dissipating the vibration energy, thereby achieving a better vibration damping effect.

[0070] It can be understood that the counterweight material 206 can be a solid such as vibration damping particles, vibration damping powder or vibration damping liquid. For example, the counterweight material 206 can be rubber particles, silica gel particles, resin particles, perlite particles, vermiculite particles, rubber powder, silica gel powder, resin powder, perlite powder or vermiculite powder, etc., which have low cost and good vibration damping effect.

[0071] It can be understood that the counterweight material 206 can be selected as cement, which belongs to a powdery hydraulic inorganic binder. After adding water and stirring, it becomes a slurry, which can harden in the air or in water and can firmly cement materials such as sand and stone together. At the same time, cement is also a filler with low price and high density, which can meet various usage requirements.

[0072] It can be understood that the counterweight material 206 can also be a liquid such as water or oil, which has low cost and good vibration damping effect, and the selection of the counterweight material 206 is more flexible.

[0073] The cavity has a structure with an opening, which is convenient for filling the counterweight material 206, and there are no obstacles above, making the installation more convenient. At the same time, after filling the counterweight material 206, a cover can be provided at the opening to close the cavity.

[0074] It can be understood that the weight of the counterweight structure is m1, and the weight of the compressor assembly is m, satisfying: m1 / m≥4%, that is, the counterweight structure accounts for more than 4% of the weight of the entire compressor assembly. Through a large number of tests, it is found that when m1 / m<4%, the improvement of the vibration damping effect is not significant enough, and when m1 / m≥4%, the vibration damping effect can be effectively improved and the reliability is high.

[0075] Refer to Figures 5 to 7 As shown, it can be understood that since the liquid storage device 102 is connected to one side of the compressor housing 101, the rotational axis 501 of the compressor assembly is not the axis of the compressor housing 101, but is inclined at a certain angle towards the liquid storage device 102. Specifically, as Figure 5 shown, the liquid storage device 102 is arranged on the right side of the compressor housing 101, and the upper end of the rotational axis 501 is inclined towards the liquid storage device 102.

[0076] Refer to Figure 5 As shown, it can be understood that the cantilever member 201 is connected to the lower part of the compressor housing 101, the counterweight member 202 is located on the side of the compressor housing 101 close to the liquid storage device 102, and the counterweight member 202 is located below the liquid storage device 102. As Figure 5 can be seen, the counterweight member 202 is configured to be far from the rotational axis 501, so as to increase the distance from the counterweight member 202 to the rotational axis 501, thereby increasing the moment of inertia and improving the vibration damping effect.

[0077] Refer to Figure 6As shown, it can be understood that the cantilever 201 is connected to the bottom of the liquid reservoir 102, and the counterweight 202 is located below the liquid reservoir 102. From Figure 6 it can be seen that the counterweight 202 is configured to be away from the rotation axis 501, so as to increase the distance from the counterweight 202 to the rotation axis 501, thereby increasing the moment of inertia and improving the vibration damping effect.

[0078] Referring to Figure 7 As shown, it can be understood that the cantilever 201 is connected to the upper part of the compressor housing 101, and the counterweight 202 is located on the side of the compressor housing 101 away from the liquid reservoir 102. From Figure 7 it can be seen that the counterweight 202 is configured to be away from the rotation axis 501, so as to increase the distance from the counterweight 202 to the rotation axis 501, thereby increasing the moment of inertia and improving the vibration damping effect.

[0079] Referring to Figure 10 As shown, it can be understood that the abscissa represents different schemes, and the ordinate represents the vibration value (unit: m / s2). Figure 10 The filled bars in it represent the vibration values detected in the middle of the compressor housing 101, and the unfilled bars represent the vibration values detected in the middle of the cup of the liquid reservoir 102. In the abscissa, Scheme 1 represents the scheme without a counterweight structure, and it is the scheme shown in Figure 1 ; Scheme 2 represents the scheme in which the counterweight structure is placed at the lower part of the compressor housing 101 and opposite to the liquid reservoir 102, that is, the position of the counterweight structure set in Figure 4 ; Scheme 3 represents the scheme in which the counterweight structure is placed in the middle of the liquid reservoir 102, that is, the position of the counterweight structure set in Figure 3 ; Scheme 4 represents the scheme in which the counterweight structure is placed at the lower part of the liquid reservoir 102, that is, the position of the counterweight structure set in Figure 6 .

[0080] Referring to Figure 10 As shown, it can be understood that in Scheme 1, the value detected in the middle of the compressor housing 101 is 15.1 m / s 2 , and the value detected in the middle of the cup of the liquid reservoir 102 is 13.3 m / s 2 ; in Scheme 2, the value detected in the middle of the compressor housing 101 is 14.2 m / s 2 , and the value detected in the middle of the cup of the liquid reservoir 102 is 12.5 m / s 2 ; in Scheme 3, the value detected in the middle of the compressor housing 101 is 13.4 m / s 2 , and the value detected in the middle of the cup of the liquid reservoir 102 is 11.4 m / s 2; In Solution 4, the detected value in the middle part of the compressor housing 101 is 12.3 m / s 2 , and the detected value in the middle part of the liquid receiver 102 cup is 10.5 m / s 2 .

[0081] Referring to Figure 10 as shown, it can be understood that in the comparison between Solution 1 and Solution 2, the values detected in the middle part of the compressor housing 101 and the middle part of the liquid receiver 102 cup in Solution 2 are both smaller. That is, the solution where the counterweight structure is placed at the lower part of the compressor housing 101 and opposite to the liquid receiver 102 has a better vibration damping effect than the solution without the counterweight structure.

[0082] In the comparison between Solution 2, Solution 3 and Solution 4, for the values detected in the middle part of the compressor housing 101 and the middle part of the liquid receiver 102 cup, the value in Solution 3 is smaller than that in Solution 2, and the value in Solution 4 is smaller than that in Solution 3. This also proves that since the counterweight 202 in Solution 3 is farther away from the rotation axis 501 than the counterweight 202 in Solution 2, and the counterweight 202 in Solution 4 is farther away from the rotation axis 501 than the counterweight 202 in Solution 3, increasing the distance between the counterweight 202 and the rotation axis 501 can improve the vibration damping effect.

[0083] It can be understood that in addition to being farther away from the rotation axis 501, the counterweight 202 in Solution 4 can improve the vibration damping effect. The counterweight 202 is also arranged below the liquid receiver 102, making use of the original spare space of the compressor assembly. This position will not increase the outer diameter of the compressor assembly and will not occupy additional space of the refrigeration equipment, having higher feasibility.

[0084] The refrigeration equipment of the embodiment of the present invention includes the compressor assembly of the embodiment of the present invention.

[0085] The refrigeration equipment of the embodiment of the present invention, by adopting the compressor assembly of the embodiment of the present invention, has the advantages of convenient installation and high reliability. In addition, the cantilever counterweight installation method can, while increasing the moment of inertia of the rotating machinery, also play the role of a dynamic vibration absorber, and has a good inhibitory effect on the local vibration noise at the connection.

[0086] The above has described the embodiments of the present invention in detail with reference to the drawings, but the present invention is not limited to the above embodiments. Various changes can be made without departing from the gist of the present invention within the knowledge scope of those of ordinary skill in the art to which the present invention pertains.

Claims

1. A compressor assembly, characterized in that Includes: a compressor, including a compressor housing; a liquid reservoir connected to the compressor housing; a counterweight structure comprising a cantilever member and a counterweight member, wherein the counterweight member is connected to at least one of the compressor housing and the accumulator via the cantilever member to increase the distance between the counterweight member and the connection between the cantilever member and the compressor housing or the accumulator; Wherein, the counterweight is located below the liquid reservoir.

2. The compressor assembly according to claim 1, wherein The cantilever member is connected to the lower portion of the compressor housing.

3. The compressor assembly according to claim 1, wherein The cantilever member is connected to the bottom of the liquid reservoir.

4. The compressor assembly according to claim 1, wherein The cantilever member is connected to the upper portion of the compressor housing, and the counterweight member is located at a side of the compressor housing away from the liquid accumulator.

5. The compressor assembly according to any one of claims 1 to 4, characterized in that The balancing weight comprises a container and a balancing weight material. The container is provided with a cavity, and the balancing weight material is filled in the cavity.

6. The compressor assembly according to claim 5, characterized in that The counterweight material is a granular solid material.

7. The compressor assembly according to claim 5, wherein: The weight material includes cement.

8. The compressor assembly according to claim 1, wherein The weight of the counterweight structure is m1, and the weight of the compressor assembly is m, satisfying: m1 / m≥4%.

9. Refrigeration equipment, characterized in that A compressor assembly comprising the compressor assembly according to any one of claims 1 to 8.

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