A compressor for refrigeration equipment

Abstract

The present invention relates to a compressor of a refrigeration device applied to a refrigeration device, comprising a shell, a compression mechanism and a motor for driving the compression mechanism to operate are installed in the shell, a mounting ring for installing a liquid reservoir is arranged on one side of the shell, an elastic soft pad is fixed to the bottom of the shell, the upper end of the elastic soft pad is fixedly connected to the lower end of the compression mechanism through a supporting structure, a sound-absorbing structure is arranged in the supporting structure, and the elastic soft pad, the supporting structure and other structures are adopted to reduce the vibration generated when the compression mechanism is in operation, and avoid large vibration of the shell causing wear to the connecting pipe and the connecting part of the pipe between the shell and the liquid reservoir, and at the same time, the sound-absorbing structure can also reduce the noise generated when the compression mechanism is in operation; the anti-motion connection component can further buffer the vibration force transmitted by the shell, thereby reducing the vibration force reaching the liquid reservoir, reducing the fatigue damage to the connecting pipe and the connecting part between the liquid reservoir and the shell, and the protection effect is better.

Description

Technical Field

[0001] The present invention relates to a compressor, and in particular to a compressor of a refrigeration equipment applied to the refrigeration equipment. Background Art

[0002] The main excitation force of the rotary compressor is affected by the motor torque and the gas resistance torque. The compressor will generate vibration and noise due to the magnetic pull caused by the airflow impact, exhaust pressure pulsation, and the height difference between the stator and the rotor. In the related art, the vibration is reduced by increasing the weight of the compressor, but the vibration reduction effect is poor and the noise is large.

[0003] In order to solve the problems of poor vibration reduction and high noise, a certain compressor assembly and refrigeration equipment in the market adopts a design of a counterweight block and a base plate arranged circumferentially around the counterweight block, which has a certain market share.

[0004] The specification of Chinese patent CN114017341B discloses a compressor assembly and a refrigeration device, wherein the compressor assembly includes a compressor housing and a vibration-damping element, the vibration-damping element is installed in the compressor housing, the vibration-damping element includes a counterweight block and a substrate arranged circumferentially around the counterweight block, the substrate is fixedly connected to the compressor housing, and the substrate is provided with a through groove, the through groove is extended along the circumference of the counterweight block and penetrates along the thickness direction of the substrate. The invention reduces the rigidity of the substrate and makes it elastic by providing a through groove extending along the circumference of the counterweight block in the substrate, and the through groove penetrates along the thickness direction of the substrate. The counterweight block can move relative to the substrate within the elastic deformation range of the substrate. When the vibration wave passes through the vibration-damping element, the counterweight block moves relative to the substrate to offset the vibration wave, thereby reducing the vibration of the compressor assembly, having a good vibration reduction effect, and reducing the operating noise of the compressor assembly.

[0005] Although the above-mentioned prior art can play a certain vibration reduction role, it does not have a good vibration reduction effect on the connecting pipes and pipe connections between the shell and the liquid reservoir. The compressor is prone to cause continuous wear on the connecting pipes and pipe connections during operation, eventually leading to damage to the pipes or pipe connections. Summary of the invention

[0006] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to achieve a good vibration reduction effect on the compressor and at the same time prevent relative vibration from occurring between the outer shell and the liquid reservoir, thereby protecting the pipeline and the pipeline connection between the liquid reservoir and the outer shell.

[0007] In order to solve the above problems, the present invention provides a compressor for refrigeration equipment, comprising a shell, a compression mechanism and a motor for driving the compression mechanism to operate are installed in the shell, a mounting ring for mounting a liquid storage device is provided on one side of the shell, an elastic cushion is fixed to the bottom of the shell, the upper end of the elastic cushion is fixedly connected to the lower end of the compression mechanism through a supporting structure, and a muffler structure is provided in the supporting structure, and the muffler structure can reduce the noise generated by the compression mechanism during operation;

[0008] One side of the mounting ring is buffer-connected to the side wall of the housing through a blocking connection component.

[0009] In the compressor of the above-mentioned refrigeration equipment, an elastic cushion and a supporting structure are used to support and install the compression mechanism, so that the vibration generated by the compression mechanism during operation is transmitted from the supporting structure to the elastic cushion. In this process, the supporting structure will consume part of the kinetic energy, and then the elastic cushion will further eliminate the vibration force, thereby reducing the vibration generated by the compression mechanism during operation, avoiding large vibration of the outer shell causing fatigue damage to the connecting pipe between the outer shell and the liquid reservoir. At the same time, the sound-absorbing structure can also reduce the noise generated by the compression mechanism during operation; in addition, the anti-motion connection component can further buffer the vibration force transmitted by the outer shell, thereby reducing the vibration force reaching the liquid reservoir, reducing the tail end vibration of the liquid reservoir, and reducing the fatigue damage to the connecting pipe between the liquid reservoir and the outer shell, thereby achieving a better protection effect.

[0010] As a further supplement to the present application, the support structure includes a support ring, a plurality of support rings are provided and the diameters are different, the plurality of support rings are sequentially sleeved from the inside to the outside, and the plurality of support rings are coaxially arranged with the compression mechanism;

[0011] There are multiple diameter reducing parts at the lower end of the compression mechanism, the inner diameters of the multiple support rings are respectively the same as the diameters of the corresponding multiple diameter reducing parts, and the multiple support rings are respectively supported at the lower ends of the multiple diameter reducing parts.

[0012] As a further supplement to the present application, the sound-absorbing structure includes energy-absorbing holes. Each support ring is vertically provided with a plurality of energy-absorbing holes distributed along the circumference of the support ring surface, and the energy-absorbing holes on the plurality of support rings are staggered.

[0013] As a further supplement to the present application, the inner walls on the left and right sides of the energy absorbing hole are arc-shaped surfaces that are symmetrical to each other, and the arc-shaped surface of the energy absorbing hole is concave inward.

[0014] As a further supplement to the present application, a soft contact ring made of soft wear-resistant material is provided at the upper end of the support ring, and the upper end of the soft contact ring abuts against the bend of the diameter reducing portion.

[0015] As a further supplement to the present application, the anti-movement connection assembly includes:

[0016] A fixing plate, one side of which is fixed to one side of the housing, and a vertically extending sliding groove is provided on the fixing plate;

[0017] A slider, the slider is slidably connected in the slide slot and one end of the slider protrudes outside the slide slot opening;

[0018] A connecting sleeve block, which is movably sleeved on one end of the slider located outside the opening of the slide slot, and one end of the connecting sleeve block away from the fixed plate is fixed to one side of the mounting ring;

[0019] The connecting sleeve is elastically connected to the slider through the elastic member, and the slider is elastically connected to the fixing plate through the elastic member.

[0020] As a further supplement to the present application, the elastic member includes a first spring and a second spring. Two first springs are provided and are symmetrically arranged along the slider. The upper and lower ends of the first spring are respectively fixed to the slider and the inner wall of the slide groove. One end of the second spring is fixed to the side wall of the slider away from the fixed plate, and the other end of the second spring is fixed to the inner wall of the connecting sleeve block.

[0021] As another improvement of the present application, a metal spring is fixed in the gap between two adjacent support rings. There are multiple metal springs and they are arranged in an array along the circumference of the support ring. The upper and lower ends of the multiple metal springs are fixed to the lower end of the compression mechanism and the upper end of the elastic pad, and the bending angles of the bending parts on the metal springs are the same.

[0022] As another improvement of the present application, the bending angle of the bending portion on the metal spring increases from top to bottom, and the bending angles of multiple bending portions increase in multiples, and the maximum bending angle does not exceed 135°.

[0023] To sum up, when the compression mechanism generates a certain vibration force during operation, the vibration is transmitted from the supporting structure to the elastic cushion. During this process, the supporting structure will consume part of the kinetic energy, and then the elastic cushion will further eliminate the vibration force, thereby reducing the vibration generated by the compression mechanism during operation, avoiding large vibrations of the outer shell that may cause wear to the connecting pipe and the pipe connection between the outer shell and the liquid reservoir. At the same time, the sound-absorbing structure can also reduce the noise generated during the operation of the compression mechanism; in addition, the anti-motion connection assembly can further buffer the vibration force transmitted by the outer shell, thereby reducing the vibration force reaching the liquid reservoir, reducing the tail end vibration of the liquid reservoir, and reducing fatigue damage to the connecting pipe and the connection between the liquid reservoir and the outer shell, thereby achieving better protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the present application when the shell is cut open;

[0025] Figure 2 This is a schematic diagram of the elastic cushion and support ring structure of the first embodiment of the present application;

[0026] Figure 3 This is a cross-sectional view of the support ring of the first embodiment of the present application;

[0027] Figure 4 This is a schematic diagram of the connection between the support ring and the compression mechanism in the cutaway state in the first embodiment of the present application;

[0028] Figure 5 This is a schematic diagram of the structure of the anti-movement connection assembly and the mounting ring of the first embodiment of the present application;

[0029] Figure 6 This is a side sectional view of the fixing plate and the connecting sleeve block of the first embodiment of the present application;

[0030] Figure 7 This is a schematic diagram of the distribution structure of the support ring and the metal spring pieces in the second embodiment of the present application;

[0031] Figure 8 This is a schematic diagram of the metal spring and the bending portion structure of the second embodiment of the present application;

[0032] Fig. 9 This is a schematic diagram of the metal spring and bending portion structure of the third embodiment of the present application.

[0033] Description of the numbers in the figure:

[0034] 1. Shell; 2. Compression mechanism; 21. Variable diameter portion; 3. Motor; 4. Liquid reservoir; 5. Mounting ring; 6. Elastic cushion; 7. Support ring; 71. Soft contact ring; 72. Energy absorption hole; 8. Motion-blocking connection assembly; 81. Fixing plate; 811. Slide groove; 82. Connecting sleeve block; 83. First spring; 84. Sliding block; 85. Second spring; 9. Metal spring; 91. Bending portion. DETAILED DESCRIPTION

[0035] The following is a detailed description of three implementation methods of the present application in conjunction with the accompanying drawings.

[0036] The first implementation method:

[0037] The present invention provides a compressor for a refrigeration device, see Figure 1-Figure 3 , comprising a shell 1, a compression mechanism 2 and a motor 3 for driving the compression mechanism 2 are installed in the shell 1, a mounting ring 5 for mounting a liquid reservoir 4 is provided on one side of the shell 1, an elastic cushion 6 is fixed to the bottom of the shell 1, the upper end of the elastic cushion 6 is fixedly connected to the lower end of the compression mechanism 2 through a supporting structure, and a sound-absorbing structure is provided in the supporting structure, which can reduce the noise generated by the compression mechanism 2 during operation;

[0038] One side of the mounting ring 5 is buffer-connected to the side wall of the housing 1 via a blocking connection assembly 8 .

[0039] Based on the above structure, when the compression mechanism 2 generates a certain vibration force during operation, the vibration is transmitted from the supporting structure to the elastic cushion 6. During this process, the supporting structure will consume part of the kinetic energy, and then the elastic cushion 6 will further eliminate the vibration force, thereby reducing the vibration generated by the compression mechanism 2 during operation, avoiding the outer shell 1 from generating large vibrations to cause wear (fatigue damage) to the connecting pipe and the pipe connection between the outer shell 1 and the liquid reservoir 4. At the same time, the sound-absorbing structure can also reduce the noise generated by the compression mechanism 2 during operation; in addition, the anti-motion connection component 8 can further buffer the vibration force transmitted by the outer shell 1, thereby reducing the vibration force reaching the liquid reservoir 4, reducing the tail end vibration of the liquid reservoir 4, and reducing the fatigue damage to the connecting pipe and the connection between the liquid reservoir 4 and the outer shell 1, thereby achieving a better protection effect.

[0040] Figure 4 The supporting structure includes a supporting ring 7, and a plurality of supporting rings 7 are provided with different diameters. The plurality of supporting rings 7 are sequentially sleeved from the inside to the outside, and the plurality of supporting rings 7 are coaxially arranged with the compression mechanism 2;

[0041] There are multiple diameter reducing parts 21 at the lower end of the compression mechanism 2 . The inner diameters of the multiple support rings 7 are respectively the same as the diameters of the corresponding multiple diameter reducing parts 21 . The multiple support rings 7 are respectively supported at the lower ends of the multiple diameter reducing parts 21 .

[0042] By setting up multiple support rings 7 with different diameters, the multiple variable diameter portions 21 at the lower end of the compression mechanism 2 can be stably supported, thereby achieving stable support for the lower end of the entire compression mechanism 2 and achieving a good supporting effect. At the same time, it can interfere with the lateral or vertical vibration forces generated at various locations at the lower end of the compression mechanism 2 and provide a transmission effect.

[0043] Figure 2 The noise absorbing structure is shown to include energy absorbing holes 72. Each support ring 7 is vertically provided with a plurality of energy absorbing holes 72 distributed along the circumference of the surface of the support ring 7. The energy absorbing holes 72 on the plurality of support rings 7 are staggeredly distributed.

[0044] By setting the energy absorbing holes 72, the noise generated during the operation of the compression mechanism 2 is interfered with, and the propagation path and propagation path of the sound are continuously changed, thereby eliminating the sound and achieving the purpose of silencing.

[0045] Figure 3 It is shown that the inner walls on the left and right sides of the energy absorbing hole 72 are symmetrical arc surfaces, and the arc surface of the energy absorbing hole 72 is concave inward; by setting the inner walls on the left and right sides of the energy absorbing hole 72 to be symmetrical arc surfaces, the sound is disturbed by the inner walls on both sides of the energy absorbing hole 72 when passing through the energy absorbing hole 72, forming a concentration and dispersion effect, thereby achieving a good sound-absorbing effect.

[0046] Figure 2 and Figure 4 It is shown that a soft contact ring 71 made of soft wear-resistant material is arranged on the upper end of the support ring 7, and the upper end of the soft contact ring 71 abuts against the bend of the reducing portion 21. Through the arrangement of the soft contact ring 71, the upper end of the support ring 7 can be in soft contact with the bend of the reducing portion 21, thereby achieving the effect of avoiding mutual wear between the upper end of the support ring 7 and the lower end of the compression mechanism 2, and playing a certain protective role on the compression mechanism 2 while ensuring the vibration reduction effect.

[0047] Figure 5-Figure 6 The blocking connection assembly 8 is shown to include:

[0048] A fixing plate 81, one side of the fixing plate 81 is fixed to one side of the housing 1, and a vertically extending slide groove 811 is provided on the fixing plate 81;

[0049] A slider 84, wherein the slider 84 is slidably connected in the slide slot 811 and one end of the slider 84 protrudes outside the opening of the slide slot 811;

[0050] A connecting sleeve block 82, the connecting sleeve block 82 is movably sleeved on one end of the slider 84 located outside the opening of the slide slot 811, and one end of the connecting sleeve block 82 away from the fixing plate 81 is fixed to one side of the mounting ring 5;

[0051] Elastic member, the connecting sleeve block 82 is elastically connected to the slider 84 through the elastic member, and the slider 84 is elastically connected to the fixing plate 81 through the elastic member;

[0052] By setting the fixed plate 81, the slider 84, the connecting sleeve 82 and the elastic member, the slider 84 can slide up and down in the slide groove 811 under the influence of the elastic force of the elastic member, and the connecting sleeve 82 can slide relative to the slider 84 under the influence of the elastic force of the elastic member, so that the vibration force transmitted from the shell 1 is eliminated and reduced at the anti-motion connection component 8, thereby achieving the purpose of reducing the vibration force reaching the liquid reservoir 4.

[0053] Figure 6 The elastic member is shown to include a first spring 83 and a second spring 85. Two first springs 83 are provided and are symmetrically arranged along the slider 84. The upper and lower ends of the first spring 83 are respectively fixed to the slider 84 and the inner wall of the slide groove 811. One end of the second spring 85 is fixed to the side wall of the slider 84 away from the fixed plate 81, and the other end of the second spring 85 is fixed to the inner wall of the connecting sleeve block 82.

[0054] Second implementation method:

[0055] Figure 7-Figure 8It is shown that a metal spring sheet 9 is fixed in the gap between two adjacent support rings 7. There are multiple metal spring sheets 9 and they are arranged in an array along the circumference of the support ring 7. The upper and lower ends of the multiple metal spring sheets 9 are fixed to the lower end of the compression mechanism 2 and the upper end of the elastic cushion 6. The bending parts 91 on the metal spring sheets 9 have the same bending angle. Through the arrangement of the metal spring sheets 9, when the compression mechanism 2 generates vibration force during operation, the metal spring sheets 9 also consume the vibration force. When used in conjunction with multiple support rings 7, a better vibration reduction effect can be achieved.

[0056] The third implementation method:

[0057] Fig. 9 It is shown that the bending angle of the bending portion 91 on the metal spring 9 increases from top to bottom, and the bending angles of the multiple bending portions 91 increase exponentially, and the maximum bending angle does not exceed 135°, so that the vibration force is transmitted disorderly on the metal spring 9, thereby enhancing the energy consumption effect of the metal spring 9 on the vibration force, and improving the weakening effect of the metal spring 9 on the vibration force, so as to achieve better vibration reduction performance.

[0058] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A compressor for refrigeration equipment, comprising a housing (1), a compression mechanism (2) and a motor (3) for driving the compression mechanism (2) to operate installed in the housing (1), a mounting ring (5) for mounting a liquid storage device (4) being provided on one side of the housing (1), characterized in that: An elastic cushion (6) is fixed to the bottom of the housing (1); the upper end of the elastic cushion (6) is fixedly connected to the lower end of the compression mechanism (2) via a supporting structure; a sound-absorbing structure is provided within the supporting structure; the sound-absorbing structure is capable of reducing the noise generated by the compression mechanism (2) during operation; One side of the mounting ring (5) is buffer-connected to the side wall of the housing (1) via a blocking connection assembly (8); The support structure comprises a support ring (7), a plurality of the support rings (7) are provided and have different diameters, the plurality of the support rings (7) are sleeved in sequence from the inside to the outside, and the plurality of the support rings (7) are coaxially arranged with the compression mechanism (2); There are a plurality of diameter-changing parts (21) at the lower end of the compression mechanism (2), the inner diameters of the plurality of support rings (7) are respectively the same as the diameters of the corresponding plurality of diameter-changing parts (21), and the plurality of support rings (7) are respectively supported at the lower ends of the plurality of diameter-changing parts (21); The noise-absorbing structure comprises energy-absorbing holes (72), each of the support rings (7) being provided with a plurality of energy-absorbing holes (72) distributed along the circumference of the surface of the support ring (7) in a vertical direction, and the energy-absorbing holes (72) on the plurality of support rings (7) being distributed in a staggered manner; The inner walls on the left and right sides of the energy absorbing hole (72) are arc-shaped surfaces that are symmetrical to each other, and the arc-shaped surface of the energy absorbing hole (72) is concave inwards; A soft contact ring (71) made of a soft wear-resistant material is provided at the upper end of the support ring (7), and the upper end of the soft contact ring (71) abuts against the bend of the diameter reducing portion (21); The anti-movement connection assembly (8) comprises: a fixing plate (81), one side of the fixing plate (81) being fixed to one side of the housing (1), and a vertically extending sliding groove (811) being provided on the fixing plate (81); A sliding block (84), wherein the sliding block (84) is slidably connected in the sliding groove (811) and one end of the sliding block protrudes outside the opening of the sliding groove (811); A connecting sleeve block (82), the connecting sleeve block (82) being movably sleeved on one end of the slider (84) located outside the opening of the slide groove (811), and one end of the connecting sleeve block (82) away from the fixing plate (81) being fixed to one side of the mounting ring (5); An elastic member, wherein the connecting sleeve (82) is elastically connected to the slider (84) via the elastic member, and the slider (84) is elastically connected to the fixing plate (81) via the elastic member; The elastic member comprises a first spring (83) and a second spring (85), wherein two first springs (83) are provided and are symmetrically arranged along the slider (84), wherein upper and lower ends of the first spring (83) are respectively fixed to the slider (84) and the inner wall of the slide groove (811), wherein one end of the second spring (85) is fixed to the side wall of the slider (84) away from the fixed plate (81), and the other end of the second spring (85) is fixed to the inner wall of the connecting sleeve block (82).

2. The compressor of a refrigeration equipment according to claim 1, characterized in that: A metal spring sheet (9) is fixed in the gap between two adjacent support rings (7); a plurality of the metal spring sheets (9) are arranged and arranged in an array along the circumference of the support ring (7); upper and lower ends of the plurality of metal spring sheets (9) are fixed to the lower end of the compression mechanism (2) and the upper end of the elastic cushion (6); and the bending portions (91) on the metal spring sheets (9) have the same bending angle.

3. The compressor of a refrigeration equipment according to claim 2, characterized in that: The bending angles of the bending portions (91) on the metal spring sheet (9) increase from top to bottom, and the bending angles of the plurality of bending portions (91) increase in multiples, with the maximum bending angle not exceeding 135°.

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