CN112833009A - Pump body structure, compressor and air conditioner - Google Patents
Pump body structure, compressor and air conditioner Download PDFInfo
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- CN112833009A CN112833009A CN202110291576.8A CN202110291576A CN112833009A CN 112833009 A CN112833009 A CN 112833009A CN 202110291576 A CN202110291576 A CN 202110291576A CN 112833009 A CN112833009 A CN 112833009A
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- pump body
- scroll
- body structure
- transmission shaft
- transmission rod
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/023—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where both members are moving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0021—Systems for the equilibration of forces acting on the pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/005—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The application relates to the technical field of compressors in general, and particularly relates to a pump body structure, a compressor and an air conditioner, wherein the pump body structure comprises two movable scroll plates, a crankshaft is connected with a transmission shaft through a transmission rod, the crankshaft drives the transmission shaft to move through the transmission rod, the transmission rod is of a rigid structure and can bear the temperature and the pressure in the compressor, the service life is long in the closed compressor, the transmission stability of the transmission rod force is good, the transmission frequency conversion error between the crankshaft and the transmission shaft is small, because the vortex tooth molded lines of the two movable vortex plates have opposite rotation directions, and the mass centers of the two movable vortex plates are respectively positioned at two opposite sides of the axis of the transmission shaft, the reaction force of the mass eccentricity of the two movable vortex plates on the transmission shaft is balanced, the radial force applied to the transmission rod is reduced, the balance hole structure on the existing movable vortex plate is eliminated, and the structural strength of the movable vortex plate is improved.
Description
Technical Field
The application relates to the technical field of compressors generally, and particularly relates to a pump body structure, a compressor and an air conditioner.
Background
In the seventies and eighties of the twentieth century, a scroll compressor is a type of refrigeration compressor which is favored in the application range of medium and small capacity, and a special pump body structure of the scroll compressor enables a movable scroll to bear complex acting force in the work process, as shown in fig. 1-2, a traditional movable scroll 1 is connected with a crankshaft 2, in order to balance mass eccentricity of a vortex tooth 11 on the whole movable scroll 1, a certain mass needs to be removed at a corresponding position on the back of the movable scroll 1, namely a balance hole 12 is arranged, but the balance hole weakens the structural strength of the movable scroll, deformation of the movable scroll under high temperature and high pressure is increased easily, abrasion, tooth breakage and the like occur, and the work reliability of the compressor is reduced.
Disclosure of Invention
In this summary, concepts in a simplified form are introduced that are further described in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
In order to solve the technical problems that the deformation is increased and the abrasion and the tooth breakage are easy to occur due to the fact that the balance hole is formed in the conventional movable scroll, the main aim of the application is to provide a pump body structure, a compressor and an air conditioner.
In order to achieve the purpose of the invention, the following technical scheme is adopted in the application:
the utility model provides a pump body structure, includes transmission shaft, two and moves vortex dish and transfer line, two move the vortex dish cover establish install in the transmission shaft, and two move the vortex tooth molded lines of vortex dish and revolve to opposite, two move the barycenter of vortex dish and be located respectively the relative both sides of transmission shaft axis, the transfer line is connected respectively the transmission shaft reaches bent axle, transfer line install in the bent axle, the transfer line is used for being connected with the bent axle, so that the bent axle passes through the transfer line drives the transmission shaft motion.
Further, in some embodiments of the present application, the pump body structure further includes two fixed scroll disks for assembling with the movable scroll disk, the two fixed scroll disks are respectively provided with an air suction port, and the two air suction ports are respectively located on two opposite sides of the transmission shaft.
Further, in some embodiments of the present application, two of the suction ports face to an axial direction of the transmission shaft, and the two suction ports face to opposite directions.
Further, in some embodiments of the present application, the fixed scroll further defines at least one pressure relief hole for connecting with a pressure relief valve.
Further, in some embodiments of the present application, the drive link is fitted with a first bushing for coupling with the crankshaft.
Further, in some embodiments of the present application, the transmission rod is provided with a second bushing, and the second bushing is connected with the transmission shaft through interference fit.
Further, in some embodiments of the present application, the movable scroll is provided with a connecting shaft sleeve, the connecting shaft sleeve is connected to the transmission shaft sleeve, and an anti-slip ring is installed between the connecting shaft sleeve and the transmission shaft.
Further, in some embodiments of the present application, the pump body structure further includes a housing installed between the two orbiting scrolls, and the housing is provided with an opening for the transmission rod to extend into.
Further, in some embodiments of the present application, the driving rod has a large end and a small end, the large end of the driving rod is connected to the driving shaft, and the small end of the driving rod is connected to the crankshaft.
A compressor is provided with the pump body structure.
An air conditioner is provided with the compressor.
According to the technical scheme, the pump body structure, the compressor and the air conditioner have the advantages and positive effects that:
the pump body structure adopts two movable scroll plates, a crankshaft is connected with a transmission shaft through a transmission rod, the crankshaft drives the transmission shaft to move through the transmission rod, the transmission rod is of a rigid structure and can bear the temperature and pressure in a compressor, the service life of the compressor is long in a closed compressor, meanwhile, the transmission rod force transmission stability is good, the transmission frequency error between the crankshaft and the transmission shaft is small, the meshing motion between the movable scroll plate and the fixed scroll plate is ensured due to the fact that the scroll tooth molded lines of the two movable scroll plates are opposite in rotation direction, the mass centers of the two movable scroll plates are respectively located on two opposite sides of the axis of the transmission shaft, the mass eccentric moment of the movable scroll plate relative to the transmission shaft is balanced, namely the reaction force of the mass eccentricity of the two movable scroll plates on the transmission shaft is balanced, the motion stability of the transmission shaft is ensured, the radial force borne by the transmission rod is reduced, and a balance hole, the structural strength of the movable scroll plate is improved, one crankshaft drives two movable scroll plates to operate efficiently and stably, and the efficiency of the compressor is improved.
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 shows an arrangement of orbiting scroll of a conventional scroll compressor.
Fig. 2 is a schematic structural view of a conventional orbiting scroll.
FIG. 3 is a schematic view illustrating a pump body structure incorporating the present application according to an exemplary embodiment.
FIG. 4 is a schematic diagram illustrating an arrangement incorporating the subject orbiting scroll according to one exemplary embodiment.
FIG. 5 is a schematic view of another perspective incorporating the subject orbiting scroll arrangement, according to an exemplary embodiment.
FIG. 6 is an illustration of a first orbiting scroll of the present application shown in accordance with an exemplary embodiment.
FIG. 7 is an illustration of a second orbiting scroll of the present application shown in accordance with an exemplary embodiment.
Wherein the reference numerals are as follows:
100-a crankshaft; 200-a transmission rod; 300-a drive shaft; 400-a first orbiting scroll; 500-a second orbiting scroll; 600-a first fixed scroll; 700-a second fixed scroll; 800-a housing;
110-a balance member;
210-a first sleeve; 220-second shaft sleeve; 230-a rod body;
410-a first connecting bushing; 420-a first orbiting scroll wrap; 421-a first end;
510-a second connecting bushing; 520-a second orbiting scroll wrap; 521-a second end;
610-a first suction port; 620-first pressure relief vent;
810-opening.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, 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 some embodiments of the present application, but not all embodiments. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application are within the scope of the present application without inventive efforts, and therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention but only to represent selected embodiments of the present invention. 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 invention.
Most of existing compressors adopt a movable scroll, as shown in fig. 1-2, the movable scroll 1 is connected with a crankshaft 2, in order to balance the mass eccentricity of the movable scroll 1 caused by the scroll teeth 11, a certain mass needs to be removed from the corresponding position on the back of the movable scroll 1, that is, a balance hole 12 is formed, the mass center of the movable scroll 1 is located on the rotation axis of the crankshaft 2, but the balance hole weakens the structural strength of the movable scroll, the deformation of the movable scroll at high temperature and high pressure is easily increased, and the conditions of abrasion, tooth breakage and the like occur, so that the working reliability of the compressor is reduced.
In order to solve the technical problems that the deformation is increased after the balance hole is formed in the conventional movable scroll, abrasion easily occurs and teeth are broken, the application provides a pump body structure, the structural form of the conventional movable scroll is changed, two movable scrolls are adopted, the two movable scrolls are respectively sleeved and installed on a transmission shaft 300, a transmission rod 200 is installed between a crankshaft 100 and the transmission shaft 300, the crankshaft 100 drives the transmission shaft 300 to move through the transmission rod 200, and the compression amount and the efficiency of the compressor are improved.
The transmission rod 200 is of a rigid structure, the transmission rod 200 can adapt to temperature and pressure changes in the compressor, the service life of the transmission rod 200 in a closed compressor is long, meanwhile, the force transmission stability of the transmission rod 200 is good, and the frequency conversion error between the crankshaft 100 and the transmission shaft 300 is small.
The spiral direction of the scroll wrap profile of two movable scroll plates is opposite, two movable scroll plates are guaranteed to move in a meshing mode with the matched fixed scroll plate respectively, the mass centers of the two movable scroll plates are located on two opposite sides of the axis of the transmission shaft 300 respectively, the eccentric moment of the two movable scroll plates relative to the transmission shaft 300 is balanced, the reaction force of the eccentricity of the scroll wrap quality of the two movable scroll plates on the transmission shaft 300 is balanced, the radial force of the transmission shaft 300 is reduced, the balance hole is prevented from being formed in the movable scroll plate, and the structural strength of the movable scroll plate is guaranteed.
FIG. 3 is a schematic view illustrating a pump body structure incorporating the present application according to an exemplary embodiment, and FIG. 4 is a schematic view illustrating an arrangement incorporating the orbiting scroll of the present application according to an exemplary embodiment.
Referring to fig. 3 and 4, the present application provides a pump body structure, a compressor and an air conditioner, wherein the air conditioner is provided with the compressor, the compressor is provided with the pump body structure, the pump body structure comprises a transmission rod 200, a transmission shaft 300, two movable scrolls, two fixed scrolls, a shell cover 800 and some necessary existing structural components required for the assembly of the two movable scrolls and the two fixed scrolls, in the present embodiment, for the convenience of description and distinction of the two movable scrolls and the two fixed scrolls, the two movable scrolls are respectively defined as a first movable scroll 400 and a second movable scroll 500, and the two fixed scrolls are respectively defined as a first fixed scroll 600 and a second fixed scroll 700.
One end of the transmission rod 200 is connected with the crankshaft 100, the crankshaft 100 is provided with a balance piece 110 near the transmission rod 200, and the balance piece 110 is used for correcting the eccentric force applied to the crankshaft 100 and ensuring the stability of the motion of the crankshaft 100. The transmission rod 200 extends in the radial direction of the crankshaft 100, the other end of the transmission rod 200 is connected with the transmission shaft 300, the first movable scroll 400 and the second movable scroll 500 are sleeved at two ends of the transmission shaft 300 in a back-to-back manner, and the shell cover 800 is installed between the two movable scrolls, as shown in fig. 3, the first fixed scroll 600 is assembled and matched with the first movable scroll 400 from the right side, the first fixed scroll 600 is fixedly connected with the shell cover 800, so that the stability of the first fixed scroll 600 is ensured, the second fixed scroll 700 is assembled and matched with the second movable scroll 500 from the left side, and the second fixed scroll 700 is fixedly connected with the shell cover 800, so that the stability of the second fixed scroll 700 is ensured.
In this application, the crank pin position of bent axle 100 is connected to the one end of transfer line 200, bent axle 100 has sufficient position and motor assembly, and the other end of transfer line 200 is connected in the middle part of transmission shaft 300, and transfer line 200 is the same to the first distance that moves vortex dish 400 and second and moves vortex dish 500 to guarantee the stability of power transmission between transfer line 200 and the transmission shaft 300, improve the life of transfer line 200 and transmission shaft 300, improve the life-span of compressor. The first fixed scroll 600 and the second fixed scroll 700 are detachably connected with the housing 800 through bolts, a plurality of bolt holes are formed in the first fixed scroll 600 and the second fixed scroll 700 respectively, and the bolt holes can be distributed on the first fixed scroll 600 and the second fixed scroll 700 in a circumferential manner, so that the stability of the first fixed scroll 600 and the second fixed scroll 700 after installation is guaranteed.
The shell cover 800 is provided with an opening 810 corresponding to the middle part of the transmission shaft 300, the transmission rod 200 can extend into the shell cover 800 through the opening 810 and is connected with the transmission shaft 300, the transmission rod 200 is mainly used for power transmission in a compressor and forms a connecting rod structure similar to the crankshaft 100 with the crankshaft 100, in principle, the transmission rod 200 converts the rotation of the crankshaft 100 into the reciprocating motion of the transmission shaft 300, the arrangement mode of the movable scroll in the traditional pump body structure is changed, the structure of the double-pump body is more compact, the two movable scrolls are driven to rotate by one crankshaft 100, the compression amount of a refrigeration working medium is greatly improved, the compression efficiency is improved, the mass eccentric moment of the two movable scrolls relative to the transmission shaft 300 is balanced, the movable scroll is prevented from removing materials for maintaining the balance of the mass center, and the structural strength of the movable scroll is ensured.
The first fixed scroll 600 and the second fixed scroll 700 are respectively provided with an air inlet, a pressure relief hole and an air outlet, the air inlet on the first fixed scroll 600 is defined as a first air inlet 610, the air inlet on the second fixed scroll 700 is defined as a second air inlet (not marked), the pressure relief hole on the first fixed scroll 600 is defined as a first pressure relief hole 620, the pressure relief hole on the second fixed scroll 700 is defined as a second pressure relief hole (not marked), during the pump body assembly process, the first pressure relief hole 620 and the second pressure relief hole are respectively connected with a pressure relief valve, the first air inlet 610 and the second air inlet are respectively positioned at two opposite sides of the transmission shaft 300, preferably, the linear distance from the first air inlet 610 to the axis of the transmission shaft 300 is equal to the linear distance from the second air inlet to the axis of the transmission shaft 300, and the first air inlet 610 and the second air inlet face the axial direction of the transmission shaft 300, and the first suction port 610 and the second suction port face away from each other, so that the influence of the acting force generated by suction on the transmission shaft 300 is reduced, and the mass eccentricity brought by the scroll wrap is further balanced.
As shown in fig. 4, the wrap of the first orbiting scroll 400 is defined as a first orbiting scroll 420, the wrap of the second orbiting scroll 500 is defined as a second orbiting scroll 520, and the profile of the first orbiting scroll 420 of the first orbiting scroll 400 and the profile of the second orbiting scroll 520 of the second orbiting scroll 500 are opposite to each other, so as to ensure the proper meshing between the first orbiting scroll 400 and the first fixed scroll 600 and between the second orbiting scroll 500 and the second fixed scroll 700 during operation. In this embodiment, the molded line of the first movable scroll wrap 420 extends clockwise, the molded line of the second movable scroll wrap 520 extends counterclockwise, the first movable scroll wrap 400 is engaged with the first fixed scroll wrap 600, the second movable scroll wrap 500 is engaged with the second fixed scroll wrap 700, and the first movable scroll wrap 400 and the second movable scroll wrap 500 perform rotational translation under the driving of the crankshaft 100 and the transmission rod 200, so that the compressor forms a double pump body and works simultaneously, and the compression amount and the working efficiency of the compressor are further improved.
Referring to fig. 3, in the present embodiment, the exhaust port of the first fixed scroll 600 is located at the middle of the first fixed scroll 600, and the exhaust port of the second fixed scroll 700 is located at the middle of the second fixed scroll 700, so that the reaction force of the gas on the movable scroll during the exhaust process can be reduced, and the stability of the motion of the transmission shaft 300 can be ensured. The first pressure relief holes 620 and the second pressure relief holes may be respectively provided in a plurality, the first pressure relief holes 620 are uniformly distributed around the exhaust hole of the first fixed scroll 600, and the second pressure relief holes are uniformly distributed around the exhaust hole of the second fixed scroll 700, so that when the pump pressure abnormally rises, the pressure can be timely relieved through the pressure relief holes, and the reliability of the scroll wraps is improved.
The driving rod 200 includes a large end and a small end, the large end of the driving rod 200 is connected to the driving shaft 300, and the small end of the driving rod 200 is connected to the crankshaft 100, so as to ensure the stability of the connection between the driving rod 200 and the driving shaft 300, as shown in fig. 4, in this embodiment, the driving rod 200 includes a rod body 230, a first sleeve 210 and a second sleeve 220, the first sleeve 210 and the second sleeve 220 are respectively and fixedly installed at two ends of the rod body 230 in the length direction, the first sleeve 210 is connected to a crank pin of the crankshaft 100, the second sleeve 220 is connected to the driving shaft 300 in a sleeved manner, and the second sleeve 220 is in interference fit with the driving shaft 300, as understood by those skilled in the art, one end of the rod body 230 can be set as the large end, the other end of the rod body 230 is set as the small end, the; alternatively, in the case where the inner diameters of the first and second bushings 210 and 220 are inconvenient, the wall thickness of the second bushing 220 is increased so that the second bushing 220 is larger than the first bushing 210.
Fig. 5 is a schematic view from another perspective showing an arrangement incorporating the subject orbiting scroll according to an exemplary embodiment, fig. 6 is a schematic view of a first orbiting scroll 400 of the subject application shown according to an exemplary embodiment, and fig. 7 is a schematic view of a second orbiting scroll 500 of the subject application shown according to an exemplary embodiment.
Referring to fig. 5 to 7, when the extending end of the first orbiting scroll 420 is defined as a first end portion 421 and the extending end of the second orbiting scroll 520 is defined as a second end portion 521, in the present embodiment, after the first orbiting scroll 400 is assembled with the second orbiting scroll 500, the first end portion 421 and the second end portion 521 are respectively located at opposite sides of the drive shaft 300, so that the centroids of the first orbiting scroll 400 and the second orbiting scroll 500 are respectively located at opposite sides of the axis of the drive shaft 300.
The first movable scroll 400 and the second movable scroll 500 are respectively installed with a connection shaft sleeve, for clarity of description, the connection shaft sleeve installed on the first movable scroll 400 is defined as a first connection shaft sleeve 410, the shaft sleeve installed on the second movable scroll 500 is defined as a second connection shaft sleeve 510, the first connection shaft sleeve 410 and the second connection shaft sleeve 510 are respectively in interference fit with the transmission shaft 300, and anti-slip rings are installed between the first connection shaft sleeve 410 and the transmission shaft 300 and between the second shaft sleeve 220 and the transmission shaft 300, and may adopt a cross slip ring structure, thereby limiting the first movable scroll 400 and the second movable scroll 500 from rotating.
In this application, all adopt interference fit's mode assembly between transfer line 200 and the transmission shaft 300, between first movable scroll 400 and the transmission shaft 300 and between second movable scroll 500 and the transmission shaft 300 to reduce the friction pair between each part in the pump body structure, balanced the axial force, guaranteed first movable scroll 400 and the second movable scroll 500 closely cooperate.
The present embodiment further provides a compressor, the compressor includes the above pump body structure, wherein the transmission rod 200 is connected to the crank pin of the crankshaft 100, the compressor further includes a housing, a motor, a bearing, and necessary components for realizing functions of the compressor, the crankshaft 100 is driven by the motor to rotate, the crank pin of the crankshaft 100 drives the first sleeve 210 to realize eccentric rotation, and further drives the second sleeve 220 of the transmission rod 200 to move, and the transmission rod 200 drives the transmission shaft 300 to move through interference fit of the second sleeve 220 and the transmission shaft 300, and under the action of the anti-slip ring and the housing 800, the eccentric rotation of the crankshaft 100 is converted into the rotary motion of the first movable scroll 400 and the second movable scroll 500, so as to realize the cooperation of the first movable scroll 400 and the first fixed scroll 600, and the cooperation of the second movable scroll 500 and the second fixed scroll 700.
The embodiment also provides an air conditioner, the air conditioner is provided with the compressor, and the compressor adopts a double-pump body structure formed by the crankshaft 100, so that the compression efficiency of the compressor is high, and the refrigeration and heating efficiency of the air conditioner is improved.
In summary, the present application provides a pump structure, a compressor and an air conditioner, the pump structure employs two orbiting scrolls which are respectively mounted on a transmission shaft 300, a transmission rod 200 converts the rotary motion of a crankshaft 100 into the reciprocating motion of the transmission shaft 300, the two orbiting scrolls form a double-pump body form, the compression amount and efficiency of the compressor are improved, the scroll tooth profiles of the two orbiting scrolls have opposite directions, the centroids of the two orbiting scrolls are respectively located on two opposite sides of the axis of the transmission shaft 300, the air inlets on the two fixed scrolls are respectively located on two opposite sides of the transmission shaft 300, the two air inlets respectively face two sides of the axial direction of the transmission shaft 300, that is, the two air inlets are arranged in a biased manner and face opposite directions, so as to balance the reaction force of the scroll tooth mass of the two orbiting scrolls on the transmission shaft 300, and reduce the radial force applied to the transmission shaft 300 eccentrically, the balance hole structure is prevented from being arranged on the movable scroll plate, and the structural strength of the movable scroll plate is improved.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
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 general inventive concept. 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 (11)
1. A pump body structure, comprising:
a drive shaft (300);
the two movable scroll plates are respectively sleeved on the transmission shaft (300), the scroll tooth profile lines of the two movable scroll plates are opposite in rotation direction, and the mass centers of the two movable scroll plates are respectively positioned at two opposite sides of the axis of the transmission shaft (300); and
the transmission rod (200) is installed on the transmission shaft (300), and the transmission rod (200) is used for being connected with a crankshaft (100) so that the crankshaft (100) drives the transmission shaft (300) to move through the transmission rod (200).
2. The pump body structure according to claim 1, further comprising two fixed scroll disks for assembling with the orbiting scroll disk, wherein the two fixed scroll disks are respectively provided with suction ports, and the two suction ports are respectively located at opposite sides of the drive shaft (300).
3. The pump body structure according to claim 2, wherein the two suction ports face in an axial direction of the drive shaft (300), and the two suction ports face away from each other.
4. The pump body structure according to claim 2, wherein the fixed scroll further defines at least one relief hole for connection to a relief valve.
5. A pump body structure according to claim 1, characterized in that said transmission rod (200) is fitted with a first bushing (210) for connection with said crankshaft (100).
6. The pump body structure according to claim 1, characterized in that the transmission rod (200) is fitted with a second bushing (220), the second bushing (220) being connected to the transmission shaft (300) by interference fit.
7. The pump body structure according to claim 1, wherein the orbiting scroll is provided with a coupling boss which is coupled with the driving shaft (300) in a bushing manner, and an anti-slip ring is installed between the coupling boss and the driving shaft (300).
8. The pump body structure according to claim 1, characterized in that it further comprises a housing (800) mounted between the two orbiting scrolls, said housing (800) being provided with an opening into which said transmission rod (200) protrudes.
9. The pump body structure according to claim 1, wherein the transmission rod (200) has a large end and a small end, the large end of the transmission rod (200) being connected to the transmission shaft (300), and the small end of the transmission rod (200) being connected to the crankshaft (100).
10. A compressor, characterized in that a pump body structure according to any one of claims 1 to 9 is mounted.
11. An air conditioner characterized in that the compressor of claim 10 is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110291576.8A CN112833009B (en) | 2021-03-18 | 2021-03-18 | Pump body structure, compressor and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110291576.8A CN112833009B (en) | 2021-03-18 | 2021-03-18 | Pump body structure, compressor and air conditioner |
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| CN112833009A true CN112833009A (en) | 2021-05-25 |
| CN112833009B CN112833009B (en) | 2022-06-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309699A (en) * | 2021-07-05 | 2021-08-27 | 珠海格力电器股份有限公司 | Scroll compressor and air conditioner |
| CN114962259A (en) * | 2022-05-24 | 2022-08-30 | 江苏太平洋精锻科技股份有限公司 | Back pressure mechanism of air conditioner compressor of electric automobile |
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| JPH04121478A (en) * | 1990-09-12 | 1992-04-22 | Toshiba Corp | Scroll type compressor |
| CN101294571A (en) * | 2007-04-23 | 2008-10-29 | 周晓亮 | Double-head scroll compressor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113309699A (en) * | 2021-07-05 | 2021-08-27 | 珠海格力电器股份有限公司 | Scroll compressor and air conditioner |
| CN114962259A (en) * | 2022-05-24 | 2022-08-30 | 江苏太平洋精锻科技股份有限公司 | Back pressure mechanism of air conditioner compressor of electric automobile |
| CN114962259B (en) * | 2022-05-24 | 2023-12-05 | 江苏太平洋精锻科技股份有限公司 | Back pressure mechanism of electric automobile air conditioner compressor |
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|---|---|
| CN112833009B (en) | 2022-06-14 |
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