Elastic support of compressor liquid accumulator and compressor system

Abstract

The invention relates to a liquid accumulator support, in particular to an elastic support of a compressor liquid accumulator and a compressor system, which comprises a first welding support, a second welding support and a damping component, the damping part is mounted on the second welding bracket through a connecting piece; the damping component comprises an upper-layer damping component and a lower-layer damping component which are arranged in an overlapped mode, the lower-layer damping component is attached to the surface of the second welding support, the middle of the upper-layer damping component is arched, and a through hole is formed between the upper-layer damping component and the lower-layer damping component; the first welding support is movably connected into the through hole of the damping component. Compared with the prior art, the problem that the damping coefficient and the cost of a liquid accumulator support in the prior art are difficult to optimize synchronously is solved. According to the welding support with the elastic damping component, the damping coefficient of the welding support is increased, and meanwhile the support cost is reduced.

Description

Technical Field

[0001] The present invention relates to a liquid receiver bracket, and more particularly to an elastic bracket for a compressor liquid receiver and a compressor system. Background Art

[0002] As one of the important components in a compressor system, the liquid receiver mainly functions to store, separate gas and liquid, filter, suppress noise, and buffer the refrigerant. Since the liquid receiver and the compressor are usually used together, the liquid receiver is usually installed on the housing of the compressor through a liquid receiver bracket.

[0003] When the compressor operates under stable load conditions, its main vibration is rotational vibration, which will be transmitted to the liquid receiver through the liquid receiver bracket and the connecting conduit, resulting in rotational vibration and radiated noise of the liquid receiver. At the same time, it will also cause vibration of the system piping connected to the liquid receiver. Furthermore, under various excitation effects during the operation of the compressor, when the vibration reaches the same or similar frequency as the natural frequency of the liquid receiver itself, it is easy to trigger structural resonance of the liquid receiver, deteriorating the noise. In severe cases, it will even break the system piping connected to the liquid receiver, causing harm.

[0004] Currently, liquid receiver brackets can be divided into clamp types and welding types. The clamp-type liquid receiver bracket has the advantages of high damping coefficient, less vibration and noise, and can dissipate the transmission of vibration to a certain extent. However, its manufacturing cost is relatively high, resulting in an increase in the cost of the compressor and the entire system. The welding-type liquid receiver bracket has a lower cost, but its damping coefficient is also lower, lacking sufficient buffering capacity.

[0005] For example, the liquid receiver, compressor disclosed in Patent CN207231013U and the compressor liquid receiver, compressor and air-conditioning system disclosed in Patent CN112781284A both further set vibration damping components on the basis of using a clamp-type liquid receiver bracket to improve the vibration damping ability. However, since both solutions use a clamp type with a relatively high cost and further add vibration damping components, the overall cost will be further increased, which is not conducive to large-scale use.

[0006] Therefore, it is necessary to design a liquid receiver bracket that can improve the damping coefficient while reducing the cost of the bracket. Summary of the Invention

[0007] The purpose of the present invention is to provide an elastic bracket for a compressor liquid receiver and a compressor system to solve at least one of the above problems, so as to solve the problem that it is difficult to synchronously optimize the damping coefficient and cost of the existing liquid receiver brackets. The present invention realizes the improvement of the damping coefficient of the welding bracket and the reduction of the bracket cost by designing a welding bracket with an elastic damping component.

[0008] The purpose of the present invention is achieved through the following technical solutions:

[0009] A first aspect of the present invention discloses an elastic bracket for a compressor liquid receiver, comprising a first welding bracket, a second welding bracket and a damping member;

[0010] The damping member is installed on the second welding bracket through a connecting member;

[0011] The damping member includes an upper damping member and a lower damping member which are stacked. The lower damping member is arranged in contact with the surface of the second welding bracket. The upper damping member arches in the middle, and a through hole is formed between the upper damping member and the lower damping member;

[0012] The first welding bracket is movably connected in the through hole of the damping member.

[0013] Preferably, the damping member is formed by stacking a plurality of arc-shaped spring pieces.

[0014] Preferably, the upper damping member is formed by stacking at least 6 arc-shaped spring pieces, and the lower damping member is formed by stacking at least 4 arc-shaped spring pieces. Through experiments, when the number of layers in the multi-layer damping structure is not less than 4, the effect is better. Further considering the connection strength, the upper damping member is set to not less than 6 layers and the lower damping member is set to not less than 4 layers to provide good connection strength and elasticity.

[0015] Preferably, the damping member is threadedly connected to the second welding bracket.

[0016] Preferably, the connecting member includes a first threaded member and a second threaded member which are in threaded cooperation; the first threaded member includes a bolt and a screw rod, and the second threaded member includes a nut.

[0017] Preferably, an elastic notch is formed on the second welding bracket, and the elastic notch is formed below the damping member.

[0018] Preferably, the line connecting the midpoint of the elastic notch and the center point of the through hole is perpendicular to the second welding bracket.

[0019] The formation of the elastic notch and its selected arrangement position enable the force to be evenly conducted to both sides through the damping member; further analysis shows that in the actual process, since one end of the elastic bracket is unconstrained and the other end is constrained, the forces on both sides are inconsistent during force transmission. Therefore, the stiffness of the elastic bracket is reduced by forming the elastic notch, and thus the deformation of the free end can be increased and the symmetry of force transmission can be improved.

[0020] Preferably, the elastic bracket is an axisymmetric structure; a pair of damping members are provided and are respectively connected to both ends of the second welding bracket.

[0021] The second aspect of the present invention discloses a compressor system, including a compressor, a liquid receiver, and an elastic support as described in any one of the above.

[0022] The liquid receiver is assembled on the compressor through the elastic support.

[0023] Preferably, the second welding support is fixedly welded to the compressor, and the first welding support is fixedly welded to the liquid receiver.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] In the present invention, a first welding support is welded at the liquid receiver end, a second welding support is welded at the compressor end, a specific elastic damping component is added between the first welding support and the second welding support, and further an elastic notch is added to the second welding support, which can undergo a certain degree of deformation. Through the combination of elastic components, the damping coefficient and energy dissipation coefficient of the overall elastic support can be effectively improved; further, the threaded form (the combination of bolts / screws and nuts) is used to constrain the damping component and the second welding support, which can increase the transmission loss in the high-frequency band, optimize the vibration of the liquid receiver and reduce the noise.

[0026] The elastic support of the present invention has a simple structure and has good vibration reduction and noise reduction effects. After being applied to the compressor system, there is no need to further design a vibration reduction structure or vibration reduction components, so that the elastic support and the overall system can have a lower cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of the elastic support (front welding) of the embodiment of the present invention;

[0028] Figure 2 is a schematic structural diagram of the second welding support of the embodiment of the present invention;

[0029] Figure 3 is a schematic structural diagram of the damping component of the embodiment of the present invention;

[0030] In the figure: 1 - first welding support; 2 - second welding support; 21 - elastic notch; 22 - welding section; 23 - damping connection section; 3 - damping component; 31 - upper damping component; 32 - lower damping component; 4 - connecting piece. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The present invention will be described in detail below with reference to the drawings and specific embodiments.

[0032] Embodiment

[0033] An elastic support for a compressor liquid receiver, as Figures 1-3 shown, includes a first welding support 1, a second welding support 2, and a damping component 3;

[0034] The damping component 3 is installed on the second welding bracket 2 through a connecting piece 4;

[0035] The damping component 3 includes an upper-layer damping component 31 and a lower-layer damping component 32 which are stacked. The lower-layer damping component 32 is attached to the surface of the second welding bracket 2, and the upper-layer damping component 31 arches in the middle, forming a through hole between the upper-layer damping component 31 and the lower-layer damping component 32;

[0036] The first welding bracket 1 is movably connected in the through hole of the damping component 3.

[0037] More specifically, in this embodiment:

[0038] The elastic bracket is composed of a first welding bracket 1 and a second welding bracket 2 connected through a damping component 3, and is an axisymmetric structure as a whole.

[0039] The second welding bracket 2 includes damping connection sections 23 on both sides and a welding section 22 connected between the two damping connection sections 23; the welding section 22 is in an arc shape and is used for welding and fixing with the compressor housing; the damping connection section 23 is used for connecting the damping component 3 and the second welding bracket 2, and an elastic notch 21 is also provided on the damping connection section 23.

[0040] The damping component 3 is installed on the elastic notch 21 of the damping connection section 23 through a connecting piece 4. More specifically, the damping component 3 is formed by stacking an upper-layer damping component 31 and a lower-layer damping component 32. Among them, the lower-layer damping component 32 is directly attached to the surface of the second welding bracket 2, and the upper-layer damping component 31 is stacked on the lower-layer damping component 32. Moreover, the upper-layer damping component 31 is an arched structure arched upward in the middle, so that a through hole is formed in the middle of the damping component 3. This through hole is arranged corresponding to the elastic notch 21 provided on the second welding bracket 2, and the connection line between the center point of the through hole and the middle point of the elastic notch 21 is perpendicular to the second welding bracket 2. The damping component 3 is specifically composed of several layers of arc-shaped spring sheets (damping steel sheets) stacked in sequence. Among them, the upper-layer damping component 31 needs to be stacked by at least 6 layers of arc-shaped spring sheets, and the lower-layer damping component 32 needs to be stacked by at least 4 layers of arc-shaped spring sheets. The specific stacking method, number of layers, thickness (single-layer thickness), wave pitch and material of the arc-shaped spring sheets in the damping component 3 are obtained by simulation and optimization according to the energy dissipation coefficient, stiffness and other performances required in the actual structure.

[0041] The damping component 3 and the second welding bracket 2 are assembled in a threaded connection form. Specifically, a threaded connection is formed between the second welding bracket 2 and the damping component 3 through bolts or screws and matching nuts.

[0042] The first welding bracket 1 is movably connected in the through hole formed by the damping component 3, and is used for welding and fixing with the liquid reservoir. The first welding bracket 1 is a rectangular plate as a whole, and one side thereof passes through the through hole (as a rotation axis) to form a hinged rotatable structure; a square hole is provided in the central part of the first welding bracket 1 for passing the end of a bolt or a screw to avoid collision between the first welding bracket 1 and the end of the bolt or the screw. Since the first welding bracket 1 can rotate around the axis in the through hole, positive welding (the first welding bracket 1 is turned to the outside and is in an open state) or reverse welding (the first welding bracket 1 is turned to the inside and is in a relative state) can be used under different welding method requirements.

[0043] When the elastic bracket is used in a compressor system, the first welding bracket 1 and the outer shell of the liquid reservoir can be welded and fixed by forward welding or reverse welding, and the second welding bracket 2 is welded and fixed to the outer shell of the compressor at the welding section 22. The compressor in the compressor system is usually a rotor compressor, which mainly generates rotary vibration.

[0044] The elastic bracket can improve the damping coefficient and energy dissipation coefficient of the elastic bracket by using the elastic damping component 3 with elasticity and the setting of the elastic notch 21; and the high-frequency transmission loss can be increased by using the constraint mode of threaded connection, thereby optimizing the vibration transmission of the liquid reservoir and reducing the noise generation. More specifically, when subjected to force (vibration): based on the use of a rotating pair between the first welding bracket 1 and the damping component 3 to form an active connection, preliminary vibration damping can be performed; based on the multi-layer damping structure adopted by the damping component 3, the forces between different layers are not completely consistent during vibration transmission, thereby causing deformation and friction between layers, further dissipating vibration energy; based on the opening of the elastic notch 21, it can be approximately regarded as a structure with one end "fixed" and the other end "cantilever", so the setting of the elastic notch 21 can reduce the stiffness of the "cantilever" side, thereby increasing its deformation capacity and further damping. This elastic bracket effectively realizes the vibration damping between the liquid reservoir and the compressor through the combined use of the above-mentioned multiple vibration damping structures.

[0045] The above description of the embodiments is to facilitate the understanding and use of the invention by those skilled in the art. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.

Claims

1. An elastic support for a compressor liquid reservoir, characterized in that, It includes a first welding bracket (1), a second welding bracket (2) and a damping component (3); The damping component (3) is installed on the second welding bracket (2) through a connecting piece (4); The damping component (3) includes an upper damping component (31) and a lower damping component (32) which are stacked. The lower damping component (32) is arranged in contact with the surface of the second welding bracket (2). The upper damping component (31) arches in the middle, and a through hole is formed between the upper damping component (31) and the lower damping component (32); The first welding bracket (1) is movably connected in the through hole of the damping component (3).

2. The elastic support for a compressor liquid reservoir according to claim 1, characterized in that, The damping component (3) is formed by stacking several layers of arc-shaped spring sheets.

3. The elastic support for a compressor liquid reservoir according to claim 2, characterized in that, The upper damping component (31) is formed by stacking at least 6 layers of arc-shaped spring sheets, and the lower damping component (32) is formed by stacking at least 4 layers of arc-shaped spring sheets.

4. The elastic support for a compressor liquid reservoir according to claim 1, characterized in that, The damping component (3) is threadedly connected to the second welding bracket (2).

5. The elastic support for a compressor liquid reservoir according to claim 4, characterized in that, The connecting piece (4) includes a first threaded piece and a second threaded piece that are in threaded cooperation; the first threaded piece includes a bolt and a screw rod, and the second threaded piece includes a nut.

6. The elastic support for a compressor liquid reservoir according to claim 1, characterized in that, An elastic notch (21) is formed on the second welding bracket (2), and the elastic notch (21) is formed below the damping component (3).

7. The elastic support for a compressor liquid reservoir according to claim 6, characterized in that, The line connecting the midpoint of the elastic notch (21) and the center point of the through hole is perpendicular to the second welding bracket (2).

8. The elastic support for a compressor liquid reservoir according to any one of claims 1 - 7, characterized in that, The elastic bracket is an axisymmetric structure; there are a pair of damping components (3) which are respectively connected to both ends of the second welding bracket (2).

9. A compressor system, characterized in that, It includes a compressor, a liquid receiver and the elastic bracket as described in any one of claims 1-8; The liquid receiver is assembled on the compressor through the elastic bracket.

10. The compressor system according to claim 9, characterized in that, The second welding bracket (2) is welded and fixed to the compressor, and the first welding bracket (1) is welded and fixed to the liquid receiver.

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