CN111102194A - Pump body assembly of rotary compressor, rotary compressor and refrigeration equipment - Google Patents

Abstract

The application relates to the technical field of compressors, and provides a rotary compressor pump body assembly, a rotary compressor with the same and refrigeration equipment. The pump body subassembly includes: the air cylinder is provided with a hollow cavity and is provided with a slide sheet groove communicated with the hollow cavity; the upper flange and the lower flange are respectively covered on the upper side and the lower side of the cylinder in a sealing way; the sliding sheet is movably arranged in the sliding sheet groove; go up the flange and all seted up the flange spout with lower flange, the gleitbretter includes gleitbretter main part and gleitbretter afterbody, and the upper and lower both sides of gleitbretter afterbody all protrude the upper and lower both sides of gleitbretter main part stretch into respectively the flange spout, be provided with in the flange spout with the elastic component that the gleitbretter is connected. The width of the fin of increase gleitbretter afterbody to the flange spout of flange about the cooperation reserves the space for many elastic component designs, and many elastic components can increase the elastic force, thereby increases gleitbretter and rolling rotor's contact force, prevents that gleitbretter and rolling rotor from breaking away from, avoids the noise of the sound of dazzling.

Description

Pump body assembly of rotary compressor, rotary compressor and refrigeration equipment

Technical Field

The application relates to the technical field of compressors, in particular to a pump body assembly of a rotary compressor, the rotary compressor with the pump body assembly and refrigeration equipment with the pump body assembly.

Background

The sliding vane in the rotary compressor is a part which is arranged in a sliding vane groove of an air cylinder, can freely slide and is always contacted with a rolling rotor under the action of spring force, so that a closed containing cavity formed by the air cylinder and the rolling rotor is divided into an air suction cavity and an air exhaust cavity.

When the rotary compressor is running, the sliding blade is subjected to friction force at two sides, gas pressure at two ends, self inertia force, spring force and contact force of the rolling rotor. With the development of the frequency conversion technology, the rotating speed of the frequency conversion air conditioner is lower and lower, when the air conditioning system runs at light load and low frequency, the compressor sucks air and takes liquid, part of the refrigeration oil is dissolved in the refrigerant, and the friction force of a sliding sheet is increased; because of the influence of liquid gasification, the internal gas pressure borne by the slip sheet is increased, at the moment, the contact force of the rolling rotor is equal to or less than zero, and the slip sheet and the rolling rotor are separated and collided to change periodically, so that the sound of the rattling is caused.

Disclosure of Invention

In order to solve the technical problem or at least partially solve the technical problem, the application provides a pump body assembly of a rotary compressor, and the rotary compressor and a refrigeration device provided with the pump body assembly.

In a first aspect, an embodiment of the present application provides a pump body assembly of a rotary compressor.

According to the embodiment of the application, the pump body assembly of the rotary compressor comprises

The air cylinder is provided with a hollow cavity and is provided with a slide sheet groove communicated with the hollow cavity;

the upper flange and the lower flange are respectively covered on the upper side and the lower side of the cylinder in a sealing way;

the sliding sheet is movably arranged in the sliding sheet groove;

the upper flange and the lower flange are both provided with flange sliding grooves, each sliding piece comprises a sliding piece main body and a sliding piece tail portion, the upper side and the lower side of each sliding piece tail portion protrude out of the upper side and the lower side of each sliding piece main body and respectively extend into the flange sliding grooves, and elastic pieces connected with the sliding pieces are arranged in the flange sliding grooves.

Furthermore, the opposite upper and lower sides of the sliding piece tail part are respectively formed with a wing piece protruding out of the sliding piece main body, the wing pieces respectively extend into the flange sliding grooves, and the elastic piece is arranged between the upper flange or the lower flange and the wing pieces.

Further, the slide sheet groove extends to the hollow cavity from the outer wall surface along the radial direction of the cylinder.

Furthermore, the elastic part is a spring, a spring hole is formed in the upper flange or the lower flange, the spring hole extends into the flange sliding groove from the outer wall surface along the radial direction of the upper flange or the lower flange, the spring is located in the spring hole, and one end of the spring is abutted to the sliding piece.

Furthermore, a spring tail groove is formed in one side, far away from the hollow cavity, of the fin, and one end of the spring is connected to the inside of the spring tail groove.

Furthermore, a groove bottom hole which is simultaneously communicated with the flange sliding groove and the spring hole is formed in the upper flange or the lower flange.

Furthermore, a plurality of elastic pieces are arranged in the flange sliding grooves of the upper flange and the lower flange.

Furthermore, the flange sliding groove and the elastic piece in the upper flange are symmetrically arranged with the corresponding structure on the lower flange.

Furthermore, an elastic piece is arranged between the middle position of the tail part of the sliding sheet and the air cylinder.

Furthermore, the pump body assembly of the rotary compressor further comprises a rolling rotor eccentrically and rotatably arranged in the hollow cavity, the outer cylindrical surface of the rolling rotor is tangent to the inner side wall of the hollow cavity, and one end of the sliding sheet is tightly matched with the rolling rotor.

Furthermore, the pump body assembly of the rotary compressor further comprises a crankshaft which sequentially penetrates through the upper flange, the rolling rotor and the lower flange, and the rolling rotor is sleeved outside an eccentric part of the crankshaft.

Further, an air suction port and an air exhaust port which are communicated in the radial direction are formed on the air cylinder, and the sliding sheet groove is formed between the air suction port and the air exhaust port.

In a second aspect, the present application provides a rotary compressor.

The rotary compressor provided according to the embodiment of the present application comprises the pump body assembly provided by the embodiment of the present application.

In a third aspect, embodiments of the present application provide a refrigeration apparatus.

The refrigeration equipment provided by the embodiment of the application comprises the rotary compressor provided by the embodiment of the application.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages: the width of increase gleitbretter afterbody to the flange spout of flange about the cooperation reserves the space for many elastic component designs, and many elastic components can increase the elastic force, thereby increases the contact force of gleitbretter and rolling rotor, prevents that gleitbretter and rolling rotor from breaking away from, avoids the noise of the sound of dazzling.

Drawings

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

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a pump body assembly of a rotary compressor according to an embodiment of the present disclosure;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a schematic structural diagram of a slider according to an embodiment of the present disclosure; and

fig. 4 is a schematic structural diagram of a pump body assembly of another rotary compressor according to an embodiment of the present application.

In the figure, the position of the upper end of the main shaft,

1. a cylinder; 101. a slide groove; 102. a spring hole; 103. a slot bottom hole; 2. an upper flange; 201. a flange chute; 202. a spring hole; 203. a slot bottom hole; 3. a lower flange; 301. a flange chute; 302. a spring hole; 303. a slot bottom hole; 4. sliding blades; 401. a fin; 402. a spring tail groove; 5. a spring; 6. a rolling rotor; 7. a crankshaft.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail with reference to the accompanying examples and figures 1-4.

As shown in fig. 1, a schematic structural diagram of a pump body assembly of a rotary compressor is provided. The pump body assembly in the embodiment is particularly a pump body structure for a rotary compressor, and aims to solve the problem that when a traditional rotary compressor runs, slip sheets and rolling rotors are separated and collide periodically and change, so that the rattling noise is caused.

As shown in fig. 1 and fig. 2, a pump body assembly of a rotary compressor according to an embodiment of the present application includes a cylinder 1, an upper flange 2, a lower flange 3, and a sliding vane 4, wherein the cylinder 1 has a hollow cavity, and the cylinder 1 is provided with a sliding vane groove 101 communicating with the hollow cavity; the upper flange 2 is covered on the upper side of the cylinder 1 in a sealing way, the lower flange 3 is covered on the lower side of the cylinder 1 in a sealing way, and the upper flange 2 and the lower flange 3 seal a hollow cavity in the cylinder 1 to form a working cavity; the sliding sheet 4 is movably arranged in the sliding sheet groove 101;

go up and seted up flange spout 201 on the flange 2, seted up flange spout 301 on the lower flange 3, gleitbretter 4 includes gleitbretter main part and gleitbretter afterbody, the upper and lower both sides of the both sides of gleitbretter afterbody all bulge the flange spout 201 on the flange 2 and the flange spout 301 on the lower flange 3 are stretched into respectively to the upper and lower both sides of the both sides of gleitbretter main part, all be provided with the elastic component of being connected with gleitbretter 4 in flange spout 201 and the flange spout 301. The sliding sheet 4 always has the tendency of moving towards the hollow cavity under the action of the elastic piece.

In the above embodiment, the heights of the upper and lower sides of the slider tail are increased to protrude the slider body, and the flange sliding groove 201 of the upper flange 2 and the flange sliding groove 301 of the lower flange 3 are matched to leave a space for designing multiple elastic pieces, and the elastic pieces can be arranged in the flange sliding grooves of the upper and lower sides, and the multiple elastic pieces can increase elastic force, so that the contact force between the slider 4 and the rolling rotor of the rotary compressor is increased, the slider is prevented from being separated from the rolling rotor, and the noise of the rattling noise is avoided; on the other hand, the structure can save a spring hole and a spring tail hole (namely a groove bottom hole) of an air cylinder in the conventional rotary compressor, allow the sliding sheet and the sliding sheet groove to be lengthened, increase the contact distance between the sliding sheet and the sliding sheet groove, improve the tilting condition of the sliding sheet in the sliding sheet groove, reduce the friction force borne by the sliding sheet, reduce the power consumption of the compressor, improve the energy efficiency and the reliability, and improve the noise of the clicking sound.

Specifically, as shown in fig. 2 and 3, the opposite upper and lower sides of the tail of the sliding piece 4 are respectively formed with a wing 401 protruding out of the sliding piece main body, the wings 401 on the two sides respectively extend into the flange sliding groove 201 and the flange sliding groove 301, and the wings 401 are connected with an elastic member, that is, the elastic member is arranged between the upper flange and the wings 401, or the elastic member is arranged between the lower flange 3 and the wings 401, and the sliding piece 4 always has a tendency of moving towards the hollow cavity under the action of the elastic member.

In some embodiments, it is sufficient to make use of the design space generated by omitting the spring hole and the slot bottom hole in the cylinder part after the above design, extend the slide slot 101 from the outer wall surface to the hollow cavity along the radial direction of the cylinder 1, and lengthen the length of the slide 4, so that the contact distance between the two is increased as much as possible, and the tilting of the slide in the slide slot is reduced.

Preferably, as shown in fig. 1 and 2, the elastic member connected to the wing and disposed in the flange sliding groove 201 and the flange sliding groove 301 is a spring 5, the upper flange 2 is formed with a spring hole 202, the lower flange 3 is formed with a spring hole 302, the spring hole 202 extends into the flange sliding groove 201 from the outer wall surface along the radial direction of the upper flange 2, the spring hole 302 extends into the flange sliding groove 301 from the outer wall surface along the radial direction of the lower flange 3, the spring 5 is disposed in the spring hole 202 or the spring hole 302, and one end of the spring 5 abuts against the wing 401 of the sliding piece 4. The spring is used as a common elastic element, the elasticity can be changed linearly according to the deformation amount and is easy to control, and the spring hole 202 and the spring hole 302 are used for placing the spring 5 and limiting the direction of the elastic force.

More preferably, a spring tail groove 402 is formed on one side of the wing 401 away from the hollow cavity, one end of the spring 5 is connected in the spring tail groove 402, and the other end of the spring can be fixed in the spring hole 202 or the spring hole 302.

The upper flange 2 is provided with a groove bottom hole 203 which is simultaneously communicated with the flange sliding groove 201 and the spring hole 202; the lower flange 3 is provided with a groove bottom hole 303 which is simultaneously communicated with the flange sliding groove 301 and the spring hole 302. The groove bottom holes 203 and 303 are arranged, so that the flange sliding grooves 201 and the flange sliding grooves 301 can be conveniently machined.

In some embodiments, a plurality of elastic members are disposed in the flange sliding groove 201 of the upper flange 2 and the flange sliding groove 301 of the lower flange 3, so as to further increase the contact force between the sliding vane 4 and the rolling rotor of the rotary compressor, prevent the sliding vane from being separated from the rolling rotor, and avoid the noise of the rattling noise.

The flange sliding groove and the elastic piece in the upper flange 2 are symmetrically arranged with the corresponding structure on the lower flange 3. The symmetrical arrangement of the upper structure and the lower structure can realize the same elastic force of the sliding sheet at the two wing positions and realize the stable sliding of the sliding sheet in the sliding sheet groove.

As another specific embodiment, in addition to providing the elastic members on the upper flange 2 and the lower flange 3, one or more elastic members may be further provided on the cylinder 1. When the compressor runs, the elastic pieces at the three positions work together, so that a larger spring force can be generated, and the sliding sheet and the roller are prevented from being separated better. Specifically, an elastic piece can be arranged between the middle position of the tail of the sliding piece 4 and the cylinder 1, and the sliding piece 4 always has a trend towards the movement of the hollow cavity under the action of the elastic piece. Preferably, as shown in fig. 4, the elastic member connected to the vane 4 and disposed in the vane groove 101 is a spring 5, the cylinder 1 is formed with a spring hole 102, the spring hole 102 extends from the outer wall surface into the vane groove 101 in the radial direction of the cylinder 1, the spring 5 is disposed in the spring hole 102, and one end of the spring 5 abuts against the vane 4. The spring is used as a common elastic part, the elasticity can be changed linearly according to the deformation amount and is easy to control, and the spring hole 102 is used for placing the spring 5 and limiting the direction of the elastic force. More preferably, a spring tail groove 402 is also formed on one side of the sliding piece 4 away from the hollow cavity, one end of the spring 5 is connected in the spring tail groove 402, and the other end thereof can be fixed in the spring hole 102. The cylinder 1 is provided with a groove bottom hole 103 which is simultaneously communicated with the slide sheet groove 101 and the spring hole 102, and the arranged groove bottom hole 103 is convenient for processing the slide sheet groove 101 and the spring hole 102.

As shown in fig. 1 and 3, the pump body assembly of the rotary compressor further includes a rolling rotor 6 eccentrically and rotatably installed in the hollow cavity, an outer cylindrical surface of the rolling rotor is tangent to an inner sidewall of the hollow cavity, and one end of the sliding vane 4 is closely matched with the rolling rotor 6. The slide 4 and the rolling rotor 6 divide the working chamber into two parts, a suction chamber and an exhaust chamber respectively. Specifically, the cylinder 1 is formed with an intake port and an exhaust port that penetrate in the radial direction, and the vane groove 101 is provided between the intake port and the exhaust port.

As shown in the figure, the pump body assembly of the rotary compressor further comprises a crankshaft 7 which sequentially penetrates through the upper flange 2, the rolling rotor 6 and the lower flange 3, the rolling rotor 6 is sleeved outside an eccentric portion of the crankshaft 7, and the crankshaft 7 is used for driving the rolling rotor to realize eccentric rotation.

The above-described embodiments provide a pump body assembly having an optional assembly step comprising: firstly, centering an upper flange; then the crankshaft, the rolling rotor and the sliding vane are arranged, the eccentric part is positioned in the cylinder, the sliding vane is positioned in the sliding vane slot, and the rolling rotor is sleeved outside the eccentric part; finally, the lower flange is installed to make the lower flange be concentric.

It should be noted that other configurations and operations of the pump body assembly of the present application will be known to those skilled in the art, and reference may be made to the pump body assembly structure of the rotary compressor in the prior art, and will not be described in detail herein.

In addition, this application has still disclosed a rotary compressor, including the pump body subassembly that the above-mentioned embodiment provided, because this pump body subassembly is the pump body subassembly disclosed in the above-mentioned embodiment, consequently the rotary compressor who has this pump body subassembly also has all above-mentioned technological effects, no longer gives unnecessary details here. The rotary compressor according to the above embodiment may further include other necessary components or structures such as a housing assembly, a motor assembly, a suction pipe, a discharge valve, etc., and the corresponding arrangement positions and connection relationships may refer to those of the rotary compressor in the prior art, and the connection relationships, operation and working principles of each of the structures that are not described are known to those skilled in the art and will not be described in detail herein.

In addition, this application still discloses refrigeration plant, including rotary compressor, because this rotary compressor is the rotary compressor disclosed in the above-mentioned embodiment, consequently the refrigeration plant who has this rotary compressor also has above-mentioned all technological effects, and the no longer repeated description is given here.

The cooling device according to the above-described embodiment may be a refrigerator or an air conditioner, etc., and other configurations and operations of the cooling device will be known to those skilled in the art and will not be described in detail herein.

Some embodiments in this specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (14)

1. A pump body assembly of rotary compressor comprises

The air cylinder (1) is provided with a hollow cavity and a sliding sheet groove (101) communicated with the hollow cavity;

the upper flange (2) and the lower flange (3) are respectively covered on the upper side and the lower side of the cylinder (1) in a sealing way;

the sliding sheet (4) is movably arranged in the sliding sheet groove (101);

the sliding vane structure is characterized in that the upper flange (2) and the lower flange (3) are both provided with flange sliding grooves (201; 301), the sliding vane (4) comprises a sliding vane main body and a sliding vane tail portion, the upper side and the lower side of the sliding vane tail portion protrude out of the upper side and the lower side of the sliding vane main body and respectively extend into the flange sliding grooves (201; 301), and elastic pieces connected with the sliding vane (4) are arranged in the flange sliding grooves (201; 301).

2. The pump body assembly of the rotary compressor according to claim 1, wherein the opposite upper and lower sides of the tail portion of the vane are respectively formed with a wing (401) protruding from the main body of the vane, the wings respectively extend into the flange sliding grooves (201; 301), and the elastic member is disposed between the upper flange (2) or the lower flange (3) and the wing (401).

3. The pump body assembly of the rotary compressor according to claim 1, wherein the vane groove (101) extends from the outer wall surface to the hollow cavity in a radial direction of the cylinder (1).

4. The pump body assembly of the rotary compressor according to claim 2, wherein the elastic member is a spring (5), the upper flange (2) or the lower flange (3) is formed with a spring hole (202; 302), the spring hole (202; 302) extends from an outer wall surface to a flange sliding groove (201; 301) along a radial direction of the upper flange (2) or the lower flange (3), and the spring (5) is located in the spring hole (202; 302) and has one end abutting against the sliding vane (4).

5. The pump body assembly of the rotary compressor according to claim 4, wherein a side of the wing (401) away from the hollow cavity is provided with a spring tail groove (402), and one end of the spring (5) is connected in the spring tail groove (402).

6. The pump body assembly of the rotary compressor according to claim 4, wherein the upper flange (2) or the lower flange (3) is formed with a groove bottom hole (203; 303) simultaneously communicating with the flange sliding groove (201; 301) and the spring hole (202; 302).

7. The pump body assembly of the rotary compressor according to claim 1, wherein a plurality of elastic members are provided in the flange sliding grooves (201; 301) of the upper flange (2) and the lower flange (3).

8. The pump body assembly of the rotary compressor according to claim 1, wherein the flange sliding groove (201) and the elastic member in the upper flange (2) are symmetrically arranged with the corresponding structure on the lower flange (3).

9. The pump body assembly of the rotary compressor according to claim 1, wherein an elastic member is also provided between a middle position of the vane tail portion and the cylinder (1).

10. The pump body assembly of the rotary compressor according to claim 1, further comprising a rolling rotor (6) eccentrically and rotatably installed in the hollow cavity, wherein an outer cylindrical surface of the rolling rotor is tangent to an inner sidewall of the hollow cavity, and one end of the sliding vane (4) is closely fitted with the rolling rotor (6).

11. The pump body assembly of the rotary compressor according to claim 10, further comprising a crankshaft (7) sequentially penetrating the upper flange (2), the rolling rotor (6) and the lower flange (3), wherein the rolling rotor (6) is sleeved outside an eccentric portion of the crankshaft (7).

12. The pump body assembly of the rotary compressor according to claim 1, wherein the cylinder (1) is formed with a suction port and a discharge port penetrating in a radial direction, and the vane groove (101) is provided between the suction port and the discharge port.

13. A rotary compressor comprising a pump body assembly according to any one of claims 1 to 12.

14. A refrigerating apparatus comprising the rotary compressor of claim 13.

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