CN108775285B - Compressor and refrigerating system with same - Google Patents

Abstract

The invention discloses a compressor and a refrigerating system with the same, wherein the compressor comprises: casing, motor, compressing mechanism and can bear the elastic component of circumference moment, the motor is established in the casing, compressing mechanism establishes in the casing and with the motor links to each other, and elastic component connects between casing and compressing mechanism and/or between casing and the motor, and wherein, the elastic component who connects between casing and compressing mechanism is located one side of keeping away from the motor of compressing mechanism, and the elastic component who connects between casing and motor is located one side of keeping away from compressing mechanism of motor, elastic component is torsion spring just torsion spring can further bear axial compressive force and/or axial tensile force. According to the compressor, the elastic component capable of bearing the circumferential moment is adopted, so that the elastic component can bear the circumferential gas moment caused by the compression mechanism, the compression mechanism can be ensured to operate more stably, the compressor achieves better reliability and stability, and the vibration and the noise of the compressor are reduced.

Description

Compressor and refrigerating system with same

The scheme is a divisional application with Chinese patent application No. 2015102280389, application date 2015-05-06, invention name of compressor and refrigeration system with the compressor.

Technical Field

The invention relates to the field of compressor equipment, in particular to a compressor and a refrigerating system with the same.

Background

With the continuous development of the compressor industry, the improvement of the vibration noise of the compressor has become a problem of great concern, and in order to improve the vibration and noise of the compressor of the refrigerator, it is pointed out in the related art that the compression mechanism may be supported at the bottom of the housing by an elastic member. However, the characteristics of the rotary compressor are different from those of the refrigerator compressor, firstly, the refrigerator compressor is generally a reciprocating compressor, and the discharge capacity of the refrigerator compressor is often ten times smaller than that of the conventional rotary compressor, and secondly, the gas load of the rotary compressor is large, so that the rotary torque generated when the rotary compressor is operated is much larger than that of the refrigerator compressor. Therefore, when a common elastic element is arranged in the rotary compressor to support the compression mechanism, the circumferential torque resistance generated by the compression mechanism is insufficient, so that the reliability of the elastic element is insufficient, and even the problem that the elastic element is separated and slides off can be caused, so that the supporting and vibration damping effect of the elastic element needs to be sacrificed in order to ensure that the elastic element has enough strength and increase the rigidity of the elastic element.

In addition, compared with the refrigerator compressor, the rotary compressor has a slim structure, that is, the center of gravity of the rotary compressor is relatively higher, so that the conventional elastic element is difficult to achieve the effect of stable support, and the problems of inclination and toppling operation of the compression mechanism and the motor in the shell are easily caused.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. The invention is based on the object of providing a compressor which is reliable in operation.

The invention also provides a refrigerating system with the compressor.

A compressor according to a first aspect of the present invention comprises: a housing; a motor disposed within the housing; the compression mechanism is arranged in the shell and is connected with the motor; and an elastic member capable of bearing a circumferential moment, the elastic member being connected between the housing and the compression mechanism and/or between the housing and the motor, wherein the elastic member connected between the housing and the compression mechanism is located on a side of the compression mechanism away from the motor, the elastic member connected between the housing and the motor is located on a side of the motor away from the compression mechanism, the elastic member is a torsion spring, and the torsion spring can further bear an axial compression force and/or an axial tension force.

According to the compressor, the elastic component capable of bearing the circumferential moment is adopted, so that the elastic component can bear the circumferential gas moment caused by the compression mechanism, the compression mechanism can be ensured to operate more stably, the compressor achieves better reliability and stability, and the vibration and the noise of the compressor are reduced

Specifically, the compressor further includes a positioning seat connected between the housing and the elastic member.

Furthermore, a first limiting structure and a second limiting structure are respectively arranged at two ends of the elastic component, the first limiting structure is connected with the compression mechanism, and the second limiting structure is connected with the positioning seat.

Specifically, the compressor further includes: the elastic piece is connected between the shell and the compressor and/or between the shell and the motor, wherein the elastic piece connected between the shell and the compressor is positioned on one side of the compressor, which is far away from the motor, and the elastic piece connected between the shell and the motor is positioned on one side of the motor, which is far away from the compressor.

Optionally, the elastic member is a compression spring or an extension spring.

Optionally, the elastic member connected between the housing and the compression mechanism is a torsion spring, and an upper end of the torsion spring is sleeved on a lower end of the compression mechanism.

A refrigeration system according to a second aspect of the invention comprises a compressor according to the first aspect of the invention.

According to the refrigeration system of the invention, the overall performance of the refrigeration system is improved by arranging the compressor of the first aspect.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic view of a compressor according to an embodiment of the present invention;

FIG. 2 is a schematic view of the elastic member shown in FIG. 1;

FIG. 3 is a schematic view of an elastic member according to one embodiment of the present invention;

FIG. 4 is a schematic view of an elastic member according to another embodiment of the present invention;

fig. 5 is a schematic view of the elastic member, the elastic member and the positioning seat according to the embodiment of the invention.

Reference numerals:

100: a compressor;

1: a housing;

2: a motor; 21: a stator; 22: a rotor;

3: a compression mechanism; 31: a crankshaft; 32: a main bearing; 33: a cylinder; 34: a secondary bearing;

4: an elastic member; 41: a first limit structure; 42: a second limit structure;

5: an elastic member; 6: a positioning seat.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.

A compressor 100 according to an embodiment of the first aspect of the present invention is described below with reference to fig. 1 to 5. The compressor 100 may be a scroll compressor, a rotary compressor, a reciprocating compressor, etc., and the following description will only take the compressor 100 as a vertical rotary compressor as an example, but it should be understood that the compressor may be a horizontal rotary compressor, a scroll compressor, a reciprocating compressor, etc. after reading the following technical solutions in the art.

As shown in fig. 1, a compressor 100 according to an embodiment of the first aspect of the present invention includes: a housing 1, a motor 2, a compression mechanism 3, and an elastic member 4.

Specifically, the motor 2 is provided in the housing 1, and the compression mechanism 3 is provided in the housing 1 and connected to the motor 2. Referring to fig. 1, the housing 1 may be generally formed as a cylindrical cylinder closed at both ends, and the compression mechanism 3 and the motor 2 are both disposed in the housing 1, wherein the motor 2 may include: a stator 21 and a rotor 22, the rotor 22 may be rotatably provided inside the stator 21, and the compression mechanism 3 may include: the motor comprises a crankshaft 31, a main bearing 32, a cylinder 33 and a secondary bearing 34, wherein the main bearing 32 and the secondary bearing 34 can be respectively arranged at the upper end and the lower end of the cylinder 33 to define a compression cavity together with the cylinder 33, the lower end of the crankshaft 31 can sequentially penetrate through the main bearing 32, the cylinder 33 and the secondary bearing 34, and the upper end of the crankshaft 31 can be fixed with a rotor 22 in a sleeved mode, so that a refrigerant in the compression cavity can be compressed through the crankshaft 31 in the working process of the motor 2. The refrigerant is not limited in composition, and for example, the refrigerant may be any one of HCFC, HFC, and HC, or a combination of a plurality of these.

The elastic member 4 may be subjected to a circumferential moment, for example, the elastic member 4 may be a torsion spring, a rubber piece, a torsion bar, or the like, wherein, on one hand, the elastic member 4 may be connected between the housing 1 and the compression mechanism 3 and located on a side of the compression mechanism 3 away from the motor 2, for example, the elastic member 4 may be connected between a lower end of the compression mechanism 3 and a bottom wall of the housing 1; on the other hand, the elastic member 4 may also be connected between the housing 1 and the motor 2 and located on a side of the motor 2 away from the compression mechanism 3 (the figure does not show this example), for example, the elastic member 4 may be connected between an upper end of the motor 2 and a top wall of the housing 1; on the other hand, the elastic member 4 may be connected between the housing 1 and the compression mechanism 3 on the side of the compression mechanism 3 away from the motor 2 and between the housing 1 and the motor 2 on the side of the motor 2 away from the compression mechanism 3 (this example is not shown in the figure).

For example, in the example of fig. 1, when the elastic member 4 is connected between the housing 1 and the compression mechanism 3 on the side of the compression mechanism 3 away from the motor 2, the upper end of the elastic member 4 is connected to the sub-bearing 34 or the cylinder 33 so that the upper end of the elastic member 4 can be relatively stationary with respect to the compression mechanism 3, and the lower end of the elastic member 4 is directly or indirectly connected to the bottom of the housing 1 so that the lower end of the elastic member 4 can be relatively stationary with respect to the housing 1, whereby the elastic member 4 can bear a circumferential moment between the compression mechanism 3 and the housing 1. Of course, the elastic member 4 is not limited to a torsion spring, a rubber member, a torsion bar, or the like.

Here, it should be noted that the torsion spring herein should be understood in a broad sense, that is, the torsion spring may be a standard component in the prior art, for example, the wire diameter d of the torsion spring may be equal to the spring pitch p, but the torsion spring may also be a modified torsion spring, for example, the wire diameter d of the torsion spring is different from the spring pitch p.

According to the compressor 100 of the embodiment of the invention, the elastic member 4 capable of bearing the circumferential moment is supported between the compression mechanism 3 and the bottom of the shell 1 and/or between the motor 2 and the top of the shell 1, so that the elastic member 4 can bear the circumferential gas moment of the compressor 100, the compression mechanism 3 can be ensured to operate more stably, the compressor 100 can achieve better reliability and stability, and the vibration and the noise of the compressor 100 are reduced.

In an embodiment of the present invention, the elastic member 4 is a torsion spring and the torsion spring can further bear an axial compression force and/or an axial tension force, that is, the elastic member 4 can not only bear a circumferential moment alone, but also bear an axial compression force, an axial tension force, or can bear both an axial compression force and an axial tension force, that is, the torsion spring can have characteristics of a compression spring at the same time; the torsion spring can also have the characteristics of an extension spring; the torsion spring can also have both the characteristics of a compression spring and the characteristics of an extension spring. Thereby, the elastic member 4 may have a better elastic supporting function, so that the operation of the compressor 100 is more stable and reliable.

For example, in some specific examples of the present invention, referring to fig. 2, when the torsion spring has multiple capacities of withstanding both circumferential moment and axial compression and/or tension forces, the wire diameter d of the torsion spring may satisfy: d is more than or equal to 2mm and less than or equal to 10mm (for example, D can be 2mm, 4mm, 6mm, 8mm, 10mm and the like), and meanwhile, the spring pitch D of the torsion spring and the pitch p of the torsion spring can satisfy the relationship: 4.5 ≦ D/p ≦ 11 (e.g., D/p may be 4.5, 5.5, 6.5, 7.5, 8.5, 9.5, 10.5, 11, etc.), and at the same time, D and the spring effective height H of the torsion spring may satisfy the relationship: 0.8 ≦ D/H ≦ 4.5 (e.g., D/p may be 0.8, 1.0, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, etc.), so preferably, D satisfies: 20mm < D < 150mm (for example, D can be 20mm, 30mm, 50mm, 80mm, 100mm, 120mm, 150mm, etc.), and p satisfies: 3mm ≦ p ≦ 11m (e.g., p may be 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, etc.), H satisfies: h is 16mm ≦ H ≦ 45mm (e.g., H may be 16mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, etc.). Therefore, the size is limited, the torsion spring can be ensured to have multiple capacities of bearing circumferential torque and axial force, a better vibration reduction effect is achieved, circumferential rotation of the rotating part in the compressor 100 can be effectively controlled, an effective elastic supporting effect is achieved, and operation reliability of the compressor 100 is improved.

The compressor 100 further includes a positioning seat 6, and the positioning seat 6 is connected between the shell 1 and the elastic member 4. For example, in the example of fig. 1, when the elastic member 4 is connected between the housing 1 and the compression mechanism 3 and is located on the side of the compression mechanism 3 away from the motor 2, the positioning seat 6 is installed in the housing 1 and fixed on the bottom wall of the housing 1, the upper end of the elastic member 4 is connected with the compression mechanism 3, and the lower end of the elastic member 4 is connected with the positioning seat 6, so that the elastic member 4 is indirectly installed on the housing 1 through the positioning seat 6. Thus, by providing the positioning seat 6, the mounting convenience and mounting efficiency of the elastic member 4 can be effectively improved, and the mounting reliability of the elastic member 4 can be ensured.

In addition, it is understood that when the elastic member 4 is connected between the housing 1 and the motor 2 and is located on a side of the motor 2 away from the compression mechanism 3 (the figure does not show the example), the positioning seat 6 may be installed in the housing 1 and fixed on a top wall of the housing 1, a lower end of the elastic member 4 is connected to the motor 2, and an upper end of the elastic member 4 is connected to the positioning seat 6, so that the elastic member 4 is indirectly installed on the housing 1 through the positioning seat 6. Thus, by providing the positioning seat 6, the mounting convenience and mounting efficiency of the elastic member 4 can be effectively improved, and the mounting reliability of the elastic member 4 can be ensured.

In one embodiment of the present invention, the two ends of the elastic member 4 are respectively provided with a first limiting structure 41 and a second limiting structure 42, the first limiting structure 41 is connected with the compression mechanism 3, and the second limiting structure 42 is connected with the positioning seat 6. Therefore, the first limiting structure 41 and the second limiting structure 42 are arranged, so that the assembly efficiency and the connection reliability of the elastic member 4, the compression mechanism 3 and the positioning seat 6 can be effectively improved, and the processing is convenient.

For example, in the example of fig. 1, the elastic member 4 is a torsion spring, the upper end of the torsion spring is provided with a first limit structure 41, and the lower end of the torsion spring is provided with a second limit structure 42, for example, in the example of fig. 3, the first limit structure 41 and the second limit structure 42 may each extend along the axial direction of the torsion spring, for example, in the example of fig. 4, the first limit structure 41 and the second limit structure 42 may each extend along the tangential direction of the circumferential direction of the torsion spring.

Accordingly, the bottom of the compression mechanism 3, for example, the bottom of the cylinder 33 or the bottom of the secondary bearing 34, may be formed with a first positioning hole adapted to the first stopper structure 41, and the top of the positioning socket 6 may be formed with a second positioning hole adapted to the second stopper structure 42. During the assembly, can be with first limit structure 41 cooperation in first spacing downthehole to realize torsion spring's the upper end and be connected with compression mechanism 3's spacing, simultaneously with the cooperation of second limit structure 42 in the spacing downthehole of second, thereby realize torsion spring's lower extreme and the spacing of positioning seat 6 and be connected. Of course, the present invention is not limited thereto, and the elastic member 4 may be connected between the compression mechanism 3 and the housing 1 in other manners.

Preferably, referring to fig. 1, the elastic member 4 is a torsion spring, and an upper end of the torsion spring is sleeved on a lower end of the compression mechanism 3. For example, in the example of fig. 1, the upper end of the torsion spring is sleeved on the shaft portion of the auxiliary bearing 34, so that the compression mechanism 3 can be elastically supported by the torsion spring in the entire circumferential direction, and thus, for the compressor 100 with a slim and tall structure, the torsion spring can achieve a more stable supporting effect, and the problem that the compression mechanism 3 and the motor 2 tilt and tilt in the casing 1 is avoided.

In one embodiment of the present invention, the compressor 100 further includes: at least one elastic element 5 that can be subjected to an axial force, for example, the elastic element 5 may be a compression spring or an extension spring, wherein, on the one hand, the elastic element 5 may be disposed between the housing 1 and the compression mechanism 3 and on the side of the compression mechanism 3 away from the motor 2; on the other hand, the elastic member 5 may also be provided between the housing 1 and the motor 2 and on a side of the motor 2 away from the compression mechanism 3 (this example is not shown in the figure); on the other hand, the elastic member 5 may be provided between the housing 1 and the compression mechanism 3 on the side of the compression mechanism 3 away from the motor 2 and between the housing 1 and the motor 2 on the side of the motor 2 away from the compression mechanism 3 (this example is not shown in the figure).

In an alternative example of the present invention, referring to fig. 5, when the elastic member 4 is connected between the housing 1 and the compression mechanism 3 and located on a side of the compression mechanism 3 away from the motor 2, the positioning seat 6 may be fixed with one elastic member 4 and four elastic pieces 5, in this case, the elastic member 4 may be a torsion spring having a compression spring characteristic, the elastic pieces 5 may be compression springs, the four elastic pieces 5 may be uniformly spaced in a circumferential direction of the elastic member 4, preferably, an upper end of each elastic piece 5 is connected to the compression mechanism 3, and a lower end of each elastic piece 5 is connected to the base. From this, can bear the elastic component 5 of axial force through the setting to elastic component 4 only need bear by the circumferential gas moment that compressing mechanism 3 arouses, need not to compromise the characteristic of bearing the axial force, and then has reduced elastic component 4's the design degree of difficulty, for example elastic component 4 only need choose for use torsion spring's standard component can.

In another alternative example of the present invention (this example is not shown in the figures), when the elastic member 4 is connected between the housing 1 and the motor 2 and is located on a side of the motor 2 away from the compression mechanism 3, in this case, the elastic member 4 may be a torsion spring having a tensile spring characteristic, and the positioning seat 6 may have four elastic members 5 fixed thereon, in this case, the elastic members 5 may be compression springs.

Of course, the present invention is not limited thereto, and when the elastic member 4 is connected between the housing 1 and the compression mechanism 3 and is located at a side of the compression mechanism 3 away from the motor 2, the elastic member 5 may also be provided between the housing 1 and the motor 2 and is located at a side of the motor 2 away from the compression mechanism 3; when the elastic member 4 is connected between the housing 1 and the motor 2 and located on the side of the motor 2 away from the compression mechanism 3, the elastic member 5 may also be simultaneously disposed between the housing 1 and the motor 2 and located on the side of the motor 2 away from the compression mechanism 3.

A refrigeration system (not shown) according to an embodiment of the second aspect of the present invention includes the compressor 100 according to the above-described embodiment of the first aspect of the present invention. Specifically, the refrigeration system may further include a condenser (not shown), an expansion mechanism (not shown), an evaporator (not shown), and the like, wherein the compressor 100 and the expansion mechanism are connected to the condenser, and the evaporator is connected to the expansion mechanism. Other constructions and operations of the refrigeration system according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

According to the refrigeration system of the embodiment of the invention, by arranging the compressor 100 of the embodiment of the first aspect, the overall performance of the refrigeration system is improved, specifically, the vibration and the noise of the refrigeration system can be reduced, and the working reliability and the service life of the refrigeration system are improved.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, as used herein, refer to an orientation or positional relationship illustrated in the drawings, which is used for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (7)

1. A compressor, characterized in that the compressor is a rotary compressor, the compressor comprising:

a housing;

a motor disposed within the housing;

the compression mechanism is arranged in the shell and is connected with the motor; and

the elastic component can bear circumferential moment, the elastic component is connected between the casing and the compression mechanism and between the casing and the motor, or the elastic component is connected between the casing and the motor, wherein, the elastic component connected between the casing and the compression mechanism is located on one side of the compression mechanism far away from the motor, the elastic component connected between the casing and the motor is located on one side of the motor far away from the compression mechanism, the elastic component is a torsion spring, and the torsion spring can further bear axial compression force and/or axial tension force.

2. The compressor of claim 1, further comprising a positioning seat connected between the shell and the resilient member.

3. The compressor of claim 2, wherein the two ends of the elastic member are respectively provided with a first limiting structure and a second limiting structure, the first limiting structure is connected with the compression mechanism, and the second limiting structure is connected with the positioning seat.

4. The compressor of claim 1, further comprising: the elastic piece is connected between the shell and the compressor and/or between the shell and the motor, wherein the elastic piece connected between the shell and the compressor is positioned on one side of the compressor, which is far away from the motor, and the elastic piece connected between the shell and the motor is positioned on one side of the motor, which is far away from the compressor.

5. The compressor of claim 4, wherein the elastic member is a compression spring or an extension spring.

6. The compressor of claim 1, wherein the resilient member connected between the housing and the compression mechanism is a torsion spring, an upper end of the torsion spring fitting over a lower end of the compression mechanism.

7. Refrigeration system, characterized in that it comprises a compressor according to any one of claims 1-6.

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