CN108799114A - Multi-cylinder rotary compressor and its compression mechanism - Google Patents
Multi-cylinder rotary compressor and its compression mechanism Download PDFInfo
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- CN108799114A CN108799114A CN201810539742.XA CN201810539742A CN108799114A CN 108799114 A CN108799114 A CN 108799114A CN 201810539742 A CN201810539742 A CN 201810539742A CN 108799114 A CN108799114 A CN 108799114A
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- China
- Prior art keywords
- slide plate
- cylinder
- partition board
- compression mechanism
- middle partition
- Prior art date
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Classifications
-
- 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
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
- F04C18/3562—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation
- F04C18/3564—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
-
- 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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
-
- 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
Abstract
The invention discloses a kind of multi-cylinder rotary compressor and its compression mechanism, the compression mechanism includes：At least two cylinders are recycled the piston rolled, the slide plate reciprocally slid in the sliding vane groove of each cylinder, the middle partition board being located between every two adjacent cylinders and extension spring part in the compression chamber of each cylinder, extension spring part includes one or two semicircular main paragraphs, the half cycle of main paragraph partition board between two adjacent cylinders and in winding, the length both ends of main paragraph diametrically and are respectively equipped with fixed part and enforcement division, fixed part is positioned at cylinder or middle partition board, and enforcement division driving slide plate is often abutted with piston.Compression mechanism according to the present invention can not only improve the rigidity of cylinder, and can improve the leakage problem of refrigerant.
Description
Technical field
The present invention relates to compressor apparatus fields, more particularly, to a kind of multi-cylinder rotary compressor and its compression mechanism.
Background technology
Twin-tub rotation-type compressor is compared with single cylinder rotary compressor, and cylinder thickness is than relatively thin, rigidity is poor.And
And due to being required to the built-in coil compression spring for only to slide plate tail end in each cylinder of twin-tub rotation-type compressor,
So that be required for opening up the spring installation cavity being connected to sliding vane groove on each cylinder, in this way due in script thickness with regard to relatively thin
Cylinder on open up spring installation cavity, to more weaken the rigidity of cylinder.In addition, opening up for spring installation cavity can also cause
The leakage problem of high pressure gas in compression chamber causes the efficiency of compressor to decline, as it is well known that twin-tub rotation-type compressor
Compressor efficiency (COP) is relatively low compared with single cylinder rotary compressor.
It points out in the related technology, in it can carry out cutting-out cylinder operating capacity-varying rotary type compressor, twin-tub rotation-type can be cancelled
Spring installation cavity in compressor on a cylinder, to improve the rigidity of a cylinder, but the spring on another cylinder
Installation cavity still can not be cancelled.And such scope of application for carrying out cutting-out cylinder operating capacity-varying rotary type compressor also office
Limit.
Invention content
The present invention is directed at least solve one of the technical problems existing in the prior art.Therefore, the present invention intends to propose one
Kind compression mechanism, the compression mechanism can not only improve the rigidity of cylinder, and can improve the leakage problem of refrigerant.
The present invention also proposes a kind of multi-cylinder rotary compressor with compression mechanism.
The compression mechanism of embodiment according to a first aspect of the present invention, including：At least two cylinders；In each cylinder
The piston rolled is recycled in compression chamber；The slide plate reciprocally slid in the sliding vane groove of each cylinder；It is located at per adjacent
Two cylinders between middle partition board；With extension spring part, the extension spring part includes one or two semicircles
Main paragraph, the half cycle of the main paragraph middle partition board between two adjacent cylinders and described in winding, the main body
The length both ends of section diametrically and are respectively equipped with fixed part and enforcement division, the fixed part be positioned at the cylinder or it is described in
Partition board, the enforcement division drive the slide plate often to be abutted with the piston.
Compression mechanism according to the ... of the embodiment of the present invention can not only improve the rigidity of cylinder, and can improve refrigerant
Leakage problem.
In some embodiments, there is the tail end of the slide plate jack, the enforcement division to be L-shaped and include：Prolong in an axial direction
The axis stretched stretches section；With；The inserting paragraph radially extended with the extending end for stretching section by the axis, the inserting paragraph inserting is described in
With the tail end only to the slide plate in jack.
In some embodiments, the jack is not opened in the height center position of the slide plate.
In some embodiments, there is the guide groove that the short transverse along the slide plate extends, the guide groove on the slide plate
It is connected to the jack and for importing the inserting paragraph in the jack.
In some embodiments, the periphery of the middle partition board has to cut off in an axial direction stretches cutting for section for avoiding the axis
Mouthful.
In some embodiments, the main paragraph is two and positioned at the both sides of the middle partition board.
In some embodiments, the main paragraph is two and positioned at the homonymy of the middle partition board and axially spaced.
In some embodiments, the main paragraph is one.
In some embodiments, there is groove, the fixed part is towards the middle partition board on the peripheral surface of the middle partition board
Axis direction protrusion and be embedded in the groove.
In some embodiments, there is the fastener radially worn, the fixed part is around being located on the middle partition board
It states on fastener.
In some embodiments, there is locating shaft, the fixed part to be directed away from the axis of the middle partition board on the cylinder
It protrudes and around being located on the locating shaft in line direction.
In some embodiments, the extension spring part is a continuous wire form springs.
The multi-cylinder rotary compressor of embodiment according to a second aspect of the present invention, including：Shell；Compression mechanism, the pressure
Contracting mechanism is located in the shell and for according to the compression mechanism of first aspect present invention embodiment；And driving mechanism, the drive
Motivation structure is located in the shell and for driving the compression mechanism to execute compressed action.
Multi-cylinder rotary compressor according to the ... of the embodiment of the present invention, by the way that the compression mechanism of above-mentioned first aspect is arranged, from
And improve the overall structure rigidity and efficiency of multi-cylinder rotary compressor.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obviously, or practice through the invention is recognized.
Description of the drawings
Fig. 1 is the sectional view of twin-tub rotation-type compressor according to an embodiment of the invention；
Fig. 2 is the enlarged drawing of compression mechanism shown in Fig. 1；
Fig. 3 is the sectional view of the Y-Y lines along Fig. 2；
Fig. 4 is the schematic diagram of extension spring part shown in Fig. 3；
Fig. 5 is the side view of Fig. 4；
Fig. 6 is the installation diagram of slide plate according to an embodiment of the invention and extension spring part；
Fig. 7 is the side view of Fig. 6；
Fig. 8 is the explosive view of slide plate according to an embodiment of the invention and extension spring part；
Fig. 9 is the side view of slide plate shown in fig. 8；
Figure 10 is the schematic diagram of compression mechanism according to an embodiment of the invention；
Figure 11 is the cooperation schematic diagram of middle partition board shown in Figure 10 and extension spring part etc.；
Figure 12 is the schematic diagram of compression mechanism according to an embodiment of the invention；
Figure 13 is the cooperation schematic diagram of middle partition board shown in Figure 12 and extension spring part etc.；
Figure 14 is the axis projection figure of compression mechanism according to an embodiment of the invention.
Reference numeral：
Twin-tub rotation-type compressor 100；
Shell 2；Circular cylindrical shell 2a；Exhaust pipe 3；Suction line 4；
Driving mechanism 5；Stator 6；Rotor 8；
Compression mechanism 10；
Bent axle 15；First eccentric part 15a；Second eccentric part 15b；Supplementary bearing 16；Base bearing 19；
Middle partition board 20；Groove 20a；Notch 20c；
First cylinder 17；First compression chamber 17a；First sliding vane groove 17b；First cylinder rear hole 17c；
Second cylinder 18；Second compression chamber 18a；Second sliding vane groove 18b；Second cylinder rear hole 18c；
First slide plate 25；First jack 271；
Second slide plate 26；Second jack 272；Guide groove 23a；
First piston 28；Second piston 29；
Coil component spring 30；
First main paragraph 30a；First enforcement division 30c；First inserting paragraph 30e1；First axle stretches a section 30g1；
Second main paragraph 30b；Second enforcement division 30d；Second inserting paragraph 30e2；Second axis stretches a section 30g2；
Fixed part 30f；
Biserial semicircle spring 33；
First main paragraph 33a；First enforcement division 33c；First inserting paragraph 33e1；First axle stretches a section 33g1；
Second main paragraph 33b；Second enforcement division 33d；Second inserting paragraph 33e2；Second axis stretches a section 33g2；
Fixed part 33f；Fixing screws 34；Sparge pipe 38；
Single-row semicircle spring 35；
Main paragraph 35a；Enforcement division 35c；Fixed part 35f；
Major diameter coil component spring 40；
First main paragraph 40a；First enforcement division 40c；
Second main paragraph 40b；Second enforcement division 40d；
Fixed part 40f；Locating shaft 43.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.For letter
Change disclosure of the invention, hereinafter the component of specific examples and setting are described.Certainly, they are merely examples, and
It is not intended to limit the present invention.In addition, the present invention can in different examples repeat reference numerals and/or letter.It is this heavy
It is for purposes of simplicity and clarity, itself not indicate the relationship between discussed various embodiments and/or setting again.This
Outside, the present invention provides various specific techniques and material example, but those of ordinary skill in the art may realize that
The applicable property of other techniques and/or the use of other materials.
In the following ,-Figure 14 referring to Fig.1, describes multi-cylinder rotary compressor according to the ... of the embodiment of the present invention and its compression mechanism.
As shown in Figure 1, multi-cylinder rotary compressor (such as twin-tub rotation-type compressor 100 shown in Fig. 1) can wrap
It includes：Shell (such as shell 2 shown in Fig. 1) and compression mechanism (such as the compressor shown in Fig. 1 being located in shell
Structure 10) and driving mechanism (such as driving mechanism 5 shown in Fig. 1), driving mechanism is for driving compression mechanism execution compression to move
Make.Here it is possible to understand, the composition and operation principle of multi-cylinder rotary compressor are well known to those skilled in the art,
Such as the introduction of specific embodiment hereinafter can be referred to, therefore do not repeat here.Furthermore, it is necessary to which explanation is as described herein
" multi-cylinder rotary compressor " can be vertical or horizontal.
As depicted in figs. 1 and 2, since rotary compressor is multi-cylinder, so that compression mechanism (such as shown in Fig. 1
Compression mechanism 10) include at least two cylinders (such as the first cylinder 17 and second cylinder 18 shown in Fig. 1).Compression mechanism
Further include：In the compression chamber of each cylinder be recycled roll piston (such as shown in Fig. 1 first piston 28 and second live
Fill in 29), in the sliding vane groove of each cylinder reciprocally slide slide plate (such as shown in Fig. 1 the first slide plate 25 and second slide
Piece 26), be located at per the middle partition board (such as middle partition board 20 shown in Fig. 1) between two adjacent cylinders.
As depicted in figs. 1 and 2, compression mechanism further includes：Extension spring part (coil component spring 30 as described later, biserial
Semicircle spring 33, single-row semicircle spring 35, major diameter coil component spring 40 etc.), extension spring part includes one or two masters
Body section (such as first main paragraph 30a and the second main paragraph 30b shown in Fig. 1), main paragraph are semicircle (managed as broad sense
Solution, i.e., regular semicircle and substantially semicircle).Main paragraph between two adjacent cylinders and in winding partition board half
Week, (it is understood that different according to the quantity of cylinder, extension spring part can be one or more, per adjacent two
Extension spring part can be set respectively between cylinder), the length both ends of main paragraph diametrically and are respectively equipped with fixed part (example
Fixed part 30f as shown in Figure 1) and enforcement division (such as first enforcement division 30c and the second enforcement division 30d shown in Fig. 1),
Fixed part is positioned at cylinder or middle partition board, and (i.e. fixed part is static or is substantially still in the position that it is positioned on cylinder or middle partition board
Set), enforcement division drives slide plate often to abut (i.e. slide plate can be pressed on piston by enforcement division) with corresponding piston.After in addition,
Literary embodiment one can support the description of this section to embodiment five.
Here it is possible to understand, " half cycle of partition board in main paragraph winding " refers to that main paragraph surrounds middle partition board periphery
The half-turn in face but may not be contacted with the peripheral surface of middle partition board.Illustrate that main paragraph is semicircle or substantially semicircle (i.e. C as a result,
Shape), it is located at the both sides on interval board diameter direction to the length both ends of main paragraph so that fixed part and enforcement division are diametrically
(fixed position is in the opposite of enforcement division in other words).
Since extension spring part (refers to bear pulling force but the extension spring that cannot buckle, such as can be that line stretches bullet
Spring or piece extension spring etc.), when compression mechanism according to the ... of the embodiment of the present invention is in the state of assembly in place, extension spring part
It is rendered as tensional state, since fixed part is in static or substantially static positioning states, to which enforcement division is by main part
Stretch the effect of recovery elastic force the axis direction of partition board can (i.e. inwardly) exert a force to slide plate in.
In short, extension spring part it is unassembled in place when, main part is not stretched, and extension spring part assembly in place
When, main part is stretched with the elastic force of original length is restored to, which applies to enforcement division towards the side of fixed part
To driving force, to which enforcement division can push central axial direction of the slide plate to cylinder by the driving force effect to slide plate
Movement abuts so that the apex of slide plate can enter in compression chamber with the peripheral surface of piston.Furthermore, it is necessary to explanation
It is that " apex " as described herein refers to one end of the axis direction of partition board in, and opposite one end is tail end, i.e., separate
One end of the axis direction of middle partition board.
It crosses as a result, and the extension spring part for compressing slide plate is set in middle partition board outer region, to stretch bullet in installation
When spring part, without opening up the spring installation cavity involved in the prior art on cylinder, and then the rigidity of cylinder is can effectively improve,
The coolant leakage problem for improving cylinder, not especially for the thinner thickness of each cylinder, rigidity in multi-cylinder rotary compressor
The situation of foot, improvement is more preferably apparent, can greatly improve the efficiency (i.e. COP) of multi-cylinder rotary compressor.Further, since
Extension spring part bears to be drawing force when working, and is not held compared with the compressed spring for being used to compress slide plate tail end in the prior art
It is buckled deformation force, the problem of to be less likely to occur to lose, service life is long.
In addition, compressed spring in the related technology usually requires that the back side in sliding vane groove is arranged, due to the back side of sliding vane groove
Narrow scope is smaller, is not easy to very much the installation of compressed spring, and the spring that the present invention uses is not necessarily to installation for extension spring part
In the narrow space of the back side of sliding vane groove, the idle region between adjacent cylinder can be located at, be arranged with surrounding middle partition board, from
And can have prodigious installation space, and it is convenient for assembly, do not interfere the installation of other parts, meets multi-cylinder rotary compressor
Miniaturization requirement, and since extension spring part can be protected by the cylinder of its both sides, to be not susceptible to shift
Collided with damage the problems such as, functional reliability is high.For example, by the way that extension spring part is arranged between two cylinders, so as to stretch
Spring part can be incorporated in compression mechanism, to which extension spring part will not interfere with bearing, muffler, motor or be note
The other component of the lubricating oil entered etc., and then the reliability of multi-cylinder rotary compressor can be improved.
In some embodiments of the invention, as depicted in figs. 1 and 2, there is the tail end of slide plate jack, enforcement division can be
L-shaped (such as first enforcement division 30c shown in Fig. 1) and include：In an axial direction (axial direction of middle partition board) extend axis stretch section (such as
First axle shown in Fig. 1 stretches a section 30g1) and stretch by axis the extending end of section and radially extend the insertion of (radial direction of middle partition board)
Section (such as top bulge-structure of the first inserting paragraph 30e1 shown in Fig. 1, i.e. L-shaped section), inserting paragraph inserting is to (embedding in other words
Enter to) in jack with tail end (such as the first jack 271 shown in Fig. 2 for being inserted into 25 tail end of the first slide plate only to slide plate
The interior tail end with only to the first slide plate 25).In addition, following Example one also can support the description of this section to embodiment five.
The structure of enforcement division is simple as a result, easy to process, and required installation space is small, utilizes existing sliding vane groove
Realize installation, and when extension spring part includes two main paragraphs, two main paragraphs can be above-mentioned L-shaped by one respectively
The slide plate of partition board both sides in enforcement division driving avoids two enforcement division generation action interference problems to improve realizability,
So that an extension spring part drives two slide plates simultaneously, and the Reliability of Microprocessor of extension spring part is high.
Certainly, the invention is not limited thereto, and in other embodiments of the invention, slide plate can also pass through other with enforcement division
Mode coordinates, such as lug boss can also be arranged at jack, while annular ring being arranged in inserting paragraph, and annular ring is set in
Enforcement division only supporting for slide plate is realized on lug boss, which is not described herein again.
In some embodiments of the invention, as shown in Figure 6 and Figure 7, jack can be opened in the height of slide plate
Heart position (that is, center eccentric setting of the jack with respect to slide plate, such as the eccentricity with m shown in Fig. 7), as a result,
The length that axis stretches section can be shortened, in this way, on the one hand may insure that inserting paragraph effectively applies to slide plate only supports power, on the other hand
The inclination and distortion amount that axis stretches section can be reduced, stretch section and the contact of slide plate tail end right angle, collision problem to reduce axis.This
Outside, at least following embodiment one can support the description of this section.Furthermore, it is necessary to explanation, short transverse as described herein
It refers to：The direction vertical with the thickness direction of slide plate and glide direction.
In some embodiments of the invention, as shown in Figure 8 and Figure 9, there can be the short transverse along slide plate on slide plate
The guide groove (such as guide groove 23a shown in fig. 8, guide groove 23a can penetrate through the tail end of slide plate) of extension, guide groove be connected to jack and
For inserting paragraph to be imported in jack.As a result, by the way that guide groove is arranged, the cooperation of inserting paragraph and jack can be facilitated, improve installation
Efficiency reduces installation difficulty, and can ensure that there is extension spring part enough drawing forces slide plate to be driven to be abutted with piston.This
Outside, at least following embodiment one can support the description of this section.
In some embodiments of the invention, as shown in figure 14, the periphery of middle partition board can have cut off in an axial direction with
The notch (such as notch 20c shown in Figure 11) of section is stretched in evacuation axis.Thus, it is possible to avoid the periphery of enforcement division and middle partition board
Face, which generates, contacts conflict of colliding with.In addition, at least following embodiment five can support the description of this section.
In some embodiments of the invention, as shown in Figures 2 and 3, main paragraph can be two (such as shown in Fig. 3
The first main paragraph 30a and the second main paragraph 30b) and positioned at the both sides of middle partition board, at this point, extension spring part can be round bullet
Spring 30.Thus, it is possible to partition board periphery idle space in fully utilizing, and extension spring part can obtain supported at three point, make
Extension spring part can the driving of more efficient and reliably centering partition board both sides slide plate, and two main parts are not susceptible to transport
Dynamic interference, Reliability of Microprocessor higher.In addition, when the fixed part of this two main paragraphs is integrated into one, stretching can be simplified
The overall structure of spring part, and make the fixed effect of the fixed part of extension spring part relatively reliable, the execution of two main paragraphs
The implementation effect in portion is relatively reliable.In addition, at least following embodiment one and embodiment five can support the description of this section.
In other embodiments of the present invention, as shown in Figure 10 and Figure 11, main paragraph can be two (such as in Figure 11
Shown in the first main paragraph 33a and the second main paragraph 33b) and positioned at the homonymy of middle partition board and axially spaced.It stretches at this time
Spring part can be biserial semicircle spring 33 (that is, two semicircle springs including being set up in parallel).Thus, it is possible to
Other parts, such as sparge pipe 38 etc. shown in Figure 11 is arranged in partition board other side space in fully utilizing, to more
Meet different actual demands well.In addition, when the fixed part of this two main paragraphs is integrated into one, stretching bullet can be simplified
The overall structure of spring part, and make the fixed effect of the fixed part of extension spring part relatively reliable, the enforcement division of two main paragraphs
Implementation effect it is relatively reliable.In addition, at least following embodiment two can support the description of this section.
In the still other embodiments of the present invention, as shown in Figure 12 and Figure 13, main paragraph can be one (such as in Figure 13
Shown in main paragraph 35a).At this point, extension spring part can be single-row semicircle spring 35 (that is, including single-row setting
A semicircle spring).Thus, it is possible to meet more actual requirements, such as when the number of cylinders in multi-cylinder rotary compressor
When the odd number that amount is three or more, so that it may to use this embodiment.In addition, at least following embodiment three, example IV can prop up
Hold the description of this section.
In some embodiments of the invention, as shown in figure 3, can have groove (such as trapezoidal on the peripheral surface of partition board
Slot, semi-circular groove etc., such as groove 20a shown in Fig. 3), the axis direction of fixed part partition board in is protruded and is embedded
In groove.Thus, it is possible to realize that fixed part is positioned at middle partition board, to improve the efficiency of assembling of fixed part.In addition, after at least
Embodiment one, the embodiment three of text can support the description of this section.
In other embodiments of the present invention, as shown in figure 11, there is the fastener (example radially worn on middle partition board
Fixing screws 34 etc. as shown in pin or Fig. 3), fixed part is around being located on fastener.Thus, it is possible to realize fixed part
It is positioned at middle partition board, to improve the efficiency of assembling and installation reliability of fixed part.In addition, at least following embodiment three can
To support the description of this section.
In the still other embodiments of the present invention, as shown in figure 14, have locating shaft (such as shown in Figure 14 on cylinder
Locating shaft 43 etc.), fixed part is directed away from the axis direction protrusion of middle partition board and around being located on locating shaft.Thus, it is possible to realize
Fixed part is positioned at cylinder, to improve the efficiency of assembling and installation reliability of fixed part.In addition, at least following embodiment
Five can support the description of this section.
In other embodiments of the present invention, as represented in figures 1 through 14, extension spring part be continuous wire form springs (or
Person says that extension spring part is made of a continuous wire form springs, wherein when main paragraph is two, a continuous wire form springs can
To bend out a bending section as the fixed part of two main paragraphs, i.e. two fixed parts can be integrated into one), it draws as a result,
The structure for stretching spring part is simple, easy to process and reliable to the biasing effect of slide plate, and uses a continuous wire form springs generation
For multiple compressed springs in the prior art, production cost can also be effectively reduced.
The design freedom of extension spring part is very big, may be implemented only to control two cylinders with a continuous wire form springs
Slide plate move back and forth respectively, so as to greatly reduce production cost, simplify structure, improve functional reliability.Certainly, originally
Invent it is without being limited thereto, in other embodiments of the invention, extension spring part can also include more continuous wire form springs, such as
First main paragraph 30a shown in Fig. 2 and the first enforcement division 30c can be a continuous wire form springs, the second main paragraph 30b and
Second enforcement division 30d can be an other continuous wire form springs.
In conclusion according to the multi-cylinder rotary compressor of at least one embodiment of the present invention, by the outer of middle partition board
The setting of all regions is round or semicircular extension spring part, and by the L-shaped enforcement division on extension spring part by the tail of slide plate
Side pressure is tight, so that the apex of slide plate is abutted with piston, so that slide plate can realize reciprocal fortune with the circulating rolling of piston
It is dynamic.In this manner it is possible to the spring installation cavity opened up on cylinder in the prior art for installing compressed spring is abolished, so as to
Improve the integral rigidity of multi-cylinder rotary compressor, and the efficiency of multi-cylinder rotary compressor can be improved, reduces Multi-cylinder rotation
The cost of formula compressor.In addition, other than changing for the design of sliding blade spring, the other structures of multi-cylinder rotary compressor
It has almost no change with shape, to significantly reduce difficulty of processing, improves the applicable range of the present invention.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obviously, or practice through the invention is recognized.
In the following ,-Figure 14 referring to Fig.1, describes multi-cylinder rotary compressor according to the ... of the embodiment of the present invention.
Embodiment one
In the present embodiment one, multi-cylinder rotary compressor is twin-tub rotation-type compressor 100, and extension spring part is circle
Spring 30.
As shown in Figure 1, twin-tub rotation-type compressor 100 includes shell 2, shell 2 includes circular cylindrical shell 2a and is welded on circle
Two end cap housings at the axial both ends of cylinder shell 2 are fixed with compression mechanism 10 and driving machine on the inner peripheral surface of circular cylindrical shell 2a
Structure 5, wherein driving mechanism 5 includes the stator 6 being fixed on circular cylindrical shell 2a inner peripheral surfaces and the rotor 8 being fixed on bent axle 15.
As shown in Figure 1, compression mechanism 10 includes：First cylinder 17, the second gas being fixed on circular cylindrical shell 2a inner peripheral surfaces
Cylinder 18, the middle partition board 20 being located between the first cylinder 17 and the second cylinder 18, the supplementary bearing 16 for connecting the first cylinder 17, connection the
The base bearing 19 of two cylinders 18, in the first compression chamber 17a of the first cylinder 17 first piston 28 of eccentric revolution, in the second gas
The song that the second piston 29 of eccentric revolution, driving first piston 28 and second piston 29 roll in second compression chamber 18a of cylinder 18
(bent axle 15 distinguishes slidably supported cooperation to axis 15 with base bearing 19, supplementary bearing 16, and has for being arranged first piston on bent axle 15
28 the first eccentric part 15a and the second eccentric part 15b for being arranged second piston 29), the first cylinder 17 move back and forth
(coil component spring 30 is used for for first slide plate 25, the second slide plate 26 moved back and forth in the second cylinder 18 and coil component spring 30
One slide plate 25 is pressed on first piston 28 and for the second slide plate 26 to be pressed on second piston 29) etc..
As shown in figures 1 and 3, coil component spring 30 is the extension spring part being process with a steel wire, in middle partition board 20
Circumferential play in stretch, the L-shaped first enforcement division 30c and L-shaped second that the both ends of coil component spring 30 are respectively provided with are executed
Portion 30d, the first enforcement division 30c compress the tail end (i.e. the back side) of the first slide plate 25, so that the apex of the first slide plate 25 is pressed on the
On the peripheral surface of one piston 28 (i.e. so that the top of the first slide plate 25 is aligned with the periphery of first piston 28 and connects), second executes
Portion 30d compresses the tail end (i.e. the back side) of the second slide plate 26, so that the apex of the second slide plate 26 is pressed on the periphery of second piston 29
On face (i.e. so that the top of the second slide plate 26 is aligned with the periphery of second piston 29 and connects).
As shown in Figure 1, when twin-tub rotation-type compressor 100 starts, the first compression chamber 17a and the second compression chamber 18a can
With the low pressure refrigerant sucked from the suction line 4 of the first cylinder 17 of connection and the second cylinder 18 respectively, low pressure refrigerant flows into
Into the first compression chamber 17a and the second compression chamber 18a, the first piston 28 and second piston 29 that are revolved round the sun relatively respectively and
First slide plate 25 of alternate reciprocating motion and the compression of the second slide plate 26, after low pressure refrigerant is compressed to high-pressure refrigerant respectively
It is discharged in shell 2 from the muffler of 19 axis side of supplementary bearing 16 and base bearing, is arranged from shell 2 after then flowing through driving mechanism 5
Tracheae 3 is discharged.
As shown in Figures 2 and 3, middle partition board 20 is located between the first cylinder 17 and the second cylinder 18, middle partition board 20 be for
Seal the circular slab of the second compression chamber 18a on the first compression chamber 17a and the second cylinder 18 on the first cylinder 17, middle partition board 20
Thickness can be close to the thickness of the flange portion (i.e. supplementary bearing 16 be used for and 17 fixed plane plate portion of the first cylinder) of supplementary bearing 16
The thickness of the flange portion (i.e. base bearing 19 is used for and 18 fixed plane plate portion of the second cylinder) of degree or base bearing 19, such as with
When 1HP twin-tub rotation-type compressors in domestic air conditioning, the thickness of middle partition board 20 may be about 7mm.
As shown in Figures 2 and 3, coil component spring 30 includes the first main paragraph 30a and the second main paragraph 30b, the first main paragraph
30a and the second main paragraph 30b surrounds 20 outer diameter half-turn of middle partition board respectively, and the tail end of the first main paragraph 30a is equipped with L-shaped first
The tail end of enforcement division 30c, the second main paragraph 30b are equipped with L-shaped second enforcement division 30d.Furthermore, it is necessary to explanation, in order to
Preferably show the connection type and coil component spring 30 of coil component spring 30 and the first slide plate 25 and the second slide plate 26 effect and
Effect, coil component spring 30 shown in Fig. 3 are its integrally-built axis projection, rather than can only be shown on the sections Y-Y
Part.
As shown in Figures 2 and 3, the first enforcement division 30c include along bent axle 15 axially extending first axle stretch section 30g1 and
Along the first inserting paragraph 30e1 of bent axle 15 radially extended, first axle stretches section 30g1 and the first inserting paragraph 30e1 is mutually perpendicular to structure
L-shaped, the first inserting paragraph 30e1 in the first jack 271 of the first slide plate 25, (carry on the back by the tail end to compress the first slide plate 25
Face) so that the apex of the first slide plate 25 is abutted with the peripheral surface of first piston 28.
As shown in Figures 2 and 3, the second enforcement division 30d include along bent axle 15 the second axially extending axis stretch section 30g2 and
Along the second inserting paragraph 30e2 of bent axle 15 radially extended, the second axis stretches section 30g2 and the second inserting paragraph 30e2 is mutually perpendicular to structure
L-shaped, the second inserting paragraph 30e2 in the second jack 272 of the second slide plate 26, (carry on the back by the tail end to compress the second slide plate 26
Face) so that the apex of the second slide plate 26 is abutted with the peripheral surface of second piston 29.
As shown in Figures 2 and 3, movement and second slide plate 26 of first slide plate 25 in the first sliding vane groove 17b is slided second
Movement in film trap 18b is in negative direction reciprocating motion mutually, moreover, the first enforcement division 30c being fixed in the first jack 271
The movement for moving and being fixed on the second enforcement division 30d in the second jack 272 is also in that negative direction moves back and forth mutually.Such as scheming
In example shown in 2 and Fig. 3, when the first slide plate 25 and the first enforcement division 30c are moved downward simultaneously, the second slide plate 26 and the
Two enforcement division 30d are moved right simultaneously；And when the first slide plate 25 and the first enforcement division 30c are moved right simultaneously, the second slide plate
26 and second enforcement division 30d move downward simultaneously.
As shown in Fig. 2, on the first cylinder 17 have along bent axle 15 axially through and with the first sliding vane groove 17b tail end connect
The first logical cylinder rear hole 17c, in the process of movement in the first enforcement division 30c insertings to the first cylinder rear hole 17c
In do not contacted with the first cylinder 17.On second cylinder 18 have along bent axle 15 axially through and with the second sliding vane groove 18b tail
The the second cylinder rear hole 18c for holding connection, in movement in the second main paragraph 30b insertings to the second cylinder rear hole 18c
It is not contacted in the process with the second cylinder 18.
As shown in Fig. 2, the path increment ST of the path increment of the first enforcement division 30c and the first slide plate 25 is the same, it is first eccentric
Two times of the eccentricity of portion 15a；The path increment ST of the path increment of second enforcement division 30d and the second slide plate 26 is the same, is second inclined
Two times of the eccentricity of center portion 15b.
As shown in figure 3, coil component spring 30 includes the fixed part 30f of connection the first main paragraph 30a and the second main paragraph 30b,
Fixed part 30f is C-shaped and is set as：With the position diametrically the first enforcement division 30c and the second enforcement division 30d and be embedded in
On groove 20a on the peripheral surface of partition board 20.
As shown in figure 3, although interaction is stretched repeatedly respectively by the first main paragraph 30a and the second main paragraph 30b, because round
Spring 30 is extension spring part, so the fixed part 30f of C-shaped will not deviate from out of groove 20a.Although in addition, as shown in figure 3,
It is expected that the fixed part 30f of C-shaped is located on the throw line of the first enforcement division 30c and the second enforcement division 30d, even with a little error
The normal operation of coil component spring 30 will not be influenced, certainly, is held when the fixed part 30f of C-shaped is located at the first enforcement division 30c and second
On the throw line of row portion 30d, the operational effect of coil component spring 30 is more preferable.
It follows that coil component spring 30 can be process by a steel wire, and by the first jack of the first slide plate 25
271, the extension spring that these three points of the groove 20a of the second jack 272 of the second slide plate 26 and middle partition board 20 are supported
Part.Therefore, coil component spring according to the ... of the embodiment of the present invention 30 and compressed spring (including compression type coil bullet in the related technology
Spring, compression flat spring, compression wire spring) there is very big difference, belong to entirely different design concept.
Moreover, compressed spring usually requires that the back side in sliding vane groove is arranged, since the back side narrow scope of sliding vane groove is smaller,
It is not easy to very much the installation of compressed spring, and the spring that the present invention uses is not necessarily to the back of the body mounted on sliding vane groove for extension spring part
In the narrow space in side, middle partition board can be surrounded and be arranged, so as to prodigious installation space, convenient for assembly and compressor
Setting, meet the miniaturization requirement of compressor.Moreover, when installation extension spring part, without being opened up on cylinder herein
Spring installation cavity described in background technology so as to effectively improve the rigidity of cylinder, while can improve in compression chamber
High pressure refrigerant leakage problem, improve the efficiency of compressor.In addition, extension spring part in the prior art be used for compress slide plate tail
The compressed spring at end is compared, and since there is no buckling distortion, to be less likely to occur to lose problem, service life is long.
As shown in Figure 3 and Figure 4, the internal diameter of coil component spring 30 is to be similar to justifying and including the first main body for 20 outer diameter of middle partition board
Section 30a, the second main paragraph 30b, the first enforcement division 30c, the second enforcement division 30d and fixed part 30f.Wherein, round bullet is manufactured
The line footpath of steel wire used in spring 30 can be different according to the specific discharge capacity of twin-tub rotation-type compressor 100, such as can be 0.6mm
~1.6mm.
As shown in figure 4, the part of the separate fixed part 30f of the first main paragraph 30a and the separate of the second main paragraph 30b are consolidated
The part for determining portion 30f has that axial gap is C and projection can be overlapped in the axial direction or (W is the first master the region that is substantially overlapped
The overlap margin of body section 30a and the second main paragraph 30b), it axially extends first axle at the end end of the first main paragraph 30a and stretches section
30g1 and the end end that section 30g1 is stretched from first axle extend radially out the first inserting paragraph 30e1, and first axle stretches section 30g1 and
One inserting paragraph 30e1 forms L-shaped first enforcement division 30c, the end end of the second main paragraph 30b along it is opposite it is axially extending go out the
Two axis, which stretch section 30g2 and stretch the end end of section 30g2 from the second axis, extends radially out the second inserting paragraph 30e2, and the second axis stretches section
30g2 and the second inserting paragraph 30e2 form L-shaped second enforcement division 30d.
As shown in Figure 2 and Figure 5, the first enforcement division 30 and the second enforcement division 30d are led from the first main paragraph 30a and second respectively
Body section 30b towards it is opposite it is axial extended with radius r bendings, then each extend over out the respectively along axial parallel radial direction again
One the second inserting paragraphs of inserting paragraph 30e1 30e2.First inserting paragraph 30e1 and the second inserting paragraph 30e2 is embedded in the first slide plate 25 respectively
In second jack 272 of the first jack 271 and the second slide plate 26.
As shown in 4 (a), in coil component spring 30 and the first slide plate 25 and the engineering of the second slide plate 26 assembling, in order to first
In inserting paragraph 30e1 insertings to the first jack 271 of the first slide plate 25, the second inserting paragraph 30e2 insertings to the second slide plate 26
In second jack 272, the direction (the dotted arrow F1 of Fig. 4) for the first enforcement division 30c being directed away from fixed part 30f is needed to stretch
The first inserting paragraph 30e1 is inserted into the first jack 271 with taking advantage of a situation, and the second enforcement division 30d is needed to be directed away from fixed part
The direction (the dotted arrow F2 of Fig. 4) of 30f, which is stretched, is inserted into the second inserting paragraph 30e2 in the second jack 272 with taking advantage of a situation.
As shown in Fig. 4 to Fig. 3, since the first inserting paragraph 30e1 is inserted into the first jack 271, and the second inserting paragraph 30e2 is inserted
Enter in the second jack 272, so that periphery of the internal diameter of the first main paragraph 30a and the second main paragraph 30b along middle partition board 20
Expand, to which the first main paragraph 30a and the second main paragraph 30b can form gap between the peripheral surface of middle partition board 20.
In this way, when coil component spring 30 is extension spring part, coil component spring 30, which can play, makes the first main paragraph 30a and the
The effect that two main paragraph 30b alternately stretch, that is to say, that the first enforcement division 30c and the second enforcement division 30d can be in coil component springs
It alternately moves reciprocatingly on 30 center line, i.e., described above " when the first enforcement division 30c is moved downward, the second enforcement division
30d can be moved right ", " when the first enforcement division 30c is moved right, the second enforcement division 30d can be moved downward ".
Even in addition, the clearance C formed between the first main paragraph 30a and the second main paragraph 30b shown in above-mentioned Fig. 5
C=0 can also, can be by but in order to preferably avoid the interference of the first enforcement division 30c and the second enforcement division 30d
The axial length of one enforcement division 30c and the second enforcement division 30d optimize, and set clearance C to C>0.In addition, when the first eccentric part
When the eccentricity difference of 15a and the second eccentric part 15b, the path increment of the first slide plate 25 and the second slide plate 26 can also be different.But
It is, if if there is surplus in the gap of the axial length and middle partition board 20 of the first main paragraph 30a and the second main paragraph 30b, so that it may to adopt
It is coped with the method for using not design for change, and with the design of only adjustment 30 length of coil component spring.
Moreover, in the big design of height of the path increment length either slide plate of slide plate, if being designed to expand respectively
Shaft length or internal diameter before stating, it will be able to be coped with the design for the length for increasing rear axle.But if extending the length of rear axle,
The right angle that the amount of bow r of rear axle is possible to the tail end of contact slide plate can cut off slide plate tail end in order to avoid the above problem
Right angle or method shown in fig. 5.
As shown in Figure 6 and Figure 7, the position that opens up of the second jack 272 of the second slide plate 26 is the center with the second slide plate 26
Highly deviated, bias m, in this manner it is possible to easily shorten the length n of the second enforcement division 30d.In this way, due to second
The length n of enforcement division 30d shortens, and during movement, the tilt quantity of the second enforcement division 30d just becomes smaller the second slide plate 26,
The problem of right angle so as to improve the tail end that the second enforcement division 30d contacts the second slide plate 26.Similarly, the first enforcement division 30c
It can also be designed improvement in conjunction with the method with the first slide plate 25.
As shown in Figure 8 and Figure 9, the tail end of the second slide plate 26 offers guide groove 23a, at this point, the second of the second enforcement division 30d
Inserting paragraph 30e2 can be inserted into along guide groove 23a, to which the second inserting paragraph 30e2 can be easily in embedding second jack 272.
Similarly, the first enforcement division 30c and the first slide plate 25 can also be designed improvement in conjunction with the method.
In the following, volume production assembling procedure of the description according to the coil component spring 30 of the present embodiment one.
Step 1：The the first compression chamber 17a and the second compression chamber 18a on the first cylinder 17 and the second cylinder 18, in
Aligning assembling is carried out on the basis of partition board 20.Be inserted into respectively in step 2, the first compression chamber 17a and the second compression chamber 18a piston and
Slide plate.
There are two types of assembly methods for the tool of coil component spring 30, one is：It is inserted into together with middle partition board 20 in step 1；Secondly
It is：Therefrom the side of partition board 20 is inserted into after step 2；But which kind of assembly method no matter coil component spring 30 select, and is required for
After step 2, by (guide groove 23a contributes to the realization of the process) in protruding apex inserting to jack.Then, then pass through song
The assembling aligning of axis 15 and base bearing 19 and supplementary bearing 16 completes the assembling of the element component of compression mechanism 10.
Embodiment two
In the present embodiment two, multi-cylinder rotary compressor is twin-tub rotation-type compressor, and extension spring part is biserial half
Coil component spring 33.
As shown in Figure 10 and Figure 11, embodiment two replaces the coil component spring in embodiment one using biserial semicircle spring 33
30, biserial semicircle spring 33 includes being fixed on two on middle partition board 20 semicircle wire form springs by fixed part 33f, two
Semicircle wire form springs are respectively the first main paragraph 33a and the second main paragraph 33b, the first main paragraph 33a and the second main paragraph 33b
It is respectively positioned on the homonymy of fixed part 24 and the first sliding vane groove 17b (or second sliding vane groove 18b) line L and along the axially spaced-apart of bent axle 15
Distribution is opened, to which two semicircle wire form springs compositions are set up in parallel to constitute biserial semicircle spring 33.
First main paragraph 33a and the second main paragraph 33b is connected by curving the fixed part 33f of U-shaped, so that biserial half
Coil component spring 33 can be process there are one wire form springs.Since biserial semicircle spring 33 is not generate the stretching bullet buckled
Spring part thereby may be ensured that there is gap between the first main paragraph 33a and the second main paragraph 33b, and the first main paragraph 33a,
It is also respectively provided with gap between second main paragraph 33b and middle partition board 20.
As shown in Figure 10 and Figure 11, the fixed part 33f of U-shaped can be fixed on the periphery of middle partition board 20 by fixing screws 34
On.In addition, the first main paragraph 33a and the second main paragraph 33b can be the identical circular arc of radius and alternately stretch, to lead to respectively
It crosses the first enforcement division 33c and the second enforcement division 33d drives the first slide plate 25 and the second slide plate 26 to move back and forth in opposite direction (i.e.
As described in embodiment one, when the first slide plate 25 and the first enforcement division 33c are moved downward simultaneously, the second slide plate 26 and second executes
Portion 33d is moved right simultaneously；And when the first slide plate 25 and the first enforcement division 33c are moved right simultaneously, the second slide plate 26 and the
Two enforcement division 33d are moved downward simultaneously).
Further, since the first main paragraph 33a and the second main paragraph 33b are respectively positioned on homonymy (i.e. two main bodys of above-mentioned line L
Section is located at the homonymy of middle partition board 20), it, can (i.e. connecting line L's be another in the other side of middle partition board 20 in the present embodiment two
Side) connection sparge pipe 38 etc..
In addition, other designs of the first enforcement division 33c and the second enforcement division 33d in the present embodiment two can be with reference implementations
The design of first enforcement division 30c and the second enforcement division 30d in example one, for example, the first enforcement division 33c is L-shaped and includes first slotting
Enter section 33e1 and first axle stretches a section 33g1, the second enforcement division 33d is L-shaped and includes that the second inserting paragraph 33e2 and the second axis stretch section
33g2.In addition, the disclosed feature of other in embodiment one may be applicable to the present embodiment two, Er Qieshi under the premise of reconcilable
It applies two and uses identical reference numeral with identical component in embodiment one.
Embodiment three
In the present embodiment three, multi-cylinder rotary compressor is twin-tub rotation-type compressor, and extension spring part is single-row half
Coil component spring 35.
As shown in Figure 12 and Figure 13, embodiment three replaces the biserial semicircle in embodiment two using single-row semicircle spring 35
Shape spring 33, compared with above-described embodiment two, single-row semicircle spring 35 eliminates first compared with biserial semicircle spring 33
Only include a main paragraph 35a, one end of main paragraph 35a passes through one of in main paragraph 33a and the second main paragraph 33b
Fixed part 35f is embedded in the groove 20a on 20 outer diameter of middle partition board (in addition, fixed part 30f can be with one or two, when solid
Determine to inlay in groove 20a overlapping when portion 30f is two), the other end one slide plate is compressed by L-shaped enforcement division 35c
(i.e. the first slide plate 25 and the second slide plate 26 tail end of one of them, the tail of the first slide plate 25 is compressed as shown in Figure 12 to tail end
End).
And (i.e. another in the first slide plate 25 and the second slide plate 26, as shown in Figure 12 second slides another slide plate
Piece 26) can be compressed by other means (such as by the prior art backwards to compressed spring or backwards to high pressure gas
Means compressed, wherein when the second slide plate 26 be by after the first slide plate 25 acts generated high pressure gas pressure
, can be poor with 5~10 seconds actuation times between the second slide plate 26 and the first slide plate 25 when starting start, in addition, in twin-tub
One of cylinder is set to carry out in the transfiguration design of cutting-out cylinder operating in rotary compressor, about the one of slide plate tail end of omission
Spring is designed as the prior art, does not repeat here).
In addition, other designs of the enforcement division 35c in the present embodiment three can be with the first enforcement division 30c in reference implementation example one
Or second enforcement division 30d design.In addition, the disclosed feature of other in embodiment one may be applicable under the premise of reconcilable
The present embodiment three, and implement two and use identical reference numeral with identical component in embodiment three.
Example IV
In the present embodiment four, multi-cylinder rotary compressor is three cylinder rotary compressors.
Rotary compressor disclosed in example IV is three cylinder rotary compressors comprising the axial direction along bent axle is arranged successively
The first cylinder, the second cylinder and the third cylinder of row are equipped with septum primum plate, the second cylinder between the first cylinder and the second cylinder
Septum secundum plate is equipped between third cylinder, septum primum plate is equipped with the coil component spring 30 or above-mentioned in above-described embodiment one
Biserial semicircle spring 33 in embodiment two, for pushing the slide plate on the first cylinder and the second cylinder to work respectively, the
Partition board is equipped with the single-row semicircle spring 35 in above-described embodiment three in two, for pushing the slide plate work on third cylinder
Make.In addition, according to example IV, it is contemplated that the application of the rotary compressor of more multi-cylinder is no longer illustrated one by one here.
Embodiment five
In the present embodiment five, multi-cylinder rotary compressor is twin-tub rotation-type compressor, and extension spring part is justified for major diameter
Shape spring 40.
As shown in figure 14, the present embodiment five shows by increasing the inclined of the first eccentric part 15a and the second eccentric part 15b
In the big twin-tub rotation-type compressor of slide plate path increment and discharge capacity, it uses major diameter coil component spring 40 to heart amount.Major diameter coil component spring 40
Design with the coil component spring 30 in above-described embodiment one is substantially the same, and also includes being distributed in the semicircular of 20 both sides of middle partition board
First main paragraph 40a and the internal diameter of semicircular second main paragraph 40b, the first main paragraph 40a and the second main paragraph 40b are very big,
Sufficient gap is maintained with the periphery of middle partition board 20, and maintains ample clearance with the inner circumferential of circular cylindrical shell 2a.
The apex of the apex of second main paragraph 40b and the first main paragraph 40a are connected by the fixed part 40f of C-shaped, fixed part
40f, and can be perpendicular to above-mentioned around being located on locating shaft 43 (locating shaft 43 is inserted in the circular groove on the second cylinder 18)
It is back and forth shaken on the direction of line L.
There is the tail end of first main paragraph 40a L-shaped first enforcement division 40c, the first enforcement division 40c to compress the first slide plate 25
Tail end, so that the first slide plate 25 is abutted with first piston 28, the tail end of the second main paragraph 40b has L-shaped second enforcement division
40d, the second enforcement division 40d compress the tail end of the second slide plate 26, the second slide plate 26 are made to be abutted with second piston 29.
In the present embodiment five, since slide plate path increment and middle partition board outer diameter are larger, in order to avoid the first enforcement division 30c
Conflict of colliding with is contacted with the generation of the peripheral surface of middle partition board 20 with the second enforcement division 30d, can be processed on the outer diameter of middle partition board 20
Notch 20c, to avoid above-mentioned conflict.
In addition, with reference to the design of the present embodiment five, it is readily apparent that, the circle in embodiment one to example IV
Locating shaft 43 also may be used to fix in spring 30, biserial semicircle spring 33, single-row semicircle spring 35.
In conclusion rotary compressor according to the ... of the embodiment of the present invention, by being used in the setting of middle partition board outer region
The extension spring part of slide plate tail end is compressed, thus when installing extension spring part, without opening up spring installation cavity on cylinder, into
And the rigidity of cylinder is improved, improve the coolant leakage problem of compression chamber, improves the efficiency (COP) of rotary compressor.In addition,
Extension spring part compared with being used to compress the compressed spring of slide plate tail end in the prior art, since there is no buckling distortion, thus
It is less likely to occur to lose problem, service life is long.
In addition, without conflicting with each other, those skilled in the art can be by difference described in this specification
The feature of embodiment or example and different embodiments or examples is combined.
In the description of the present invention, it is to be understood that, term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indicating or implies relative importance or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include one or more this feature.In the description of the present invention,
The meaning of " plurality " is two or more, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be direct phase
Even, can also can be indirectly connected through an intermediary that the interaction of the connection or two elements inside two elements is closed
System.For the ordinary skill in the art, above-mentioned term in the present invention specific can be understood as the case may be
Meaning.In the present invention unless specifically defined or limited otherwise, fisrt feature can be "above" or "below" second feature
One and second feature is in direct contact or the first and second features pass through intermediary mediate contact.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of being detached from the principle of the present invention and objective a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The range of invention is limited by claim and its equivalent.
Claims (13)
1. a kind of compression mechanism, which is characterized in that including：
At least two cylinders；
The piston rolled is recycled in the compression chamber of each cylinder；
The slide plate reciprocally slid in the sliding vane groove of each cylinder；
Middle partition board between being located at per two adjacent cylinders；With
Extension spring part, the extension spring part include one or two semicircular main paragraphs, and the main paragraph is located at phase
Between two adjacent cylinders and the half cycle of middle partition board described in winding, the length both ends of the main paragraph are diametrically and respectively
Equipped with fixed part and enforcement division, the fixed part is positioned at the cylinder or the middle partition board, and the enforcement division drives the cunning
Piece is often abutted with the piston.
2. compression mechanism according to claim 1, which is characterized in that the tail end of the slide plate has jack, the execution
Portion is L-shaped and includes：
The axis axially extended stretches section；With
The inserting paragraph that the extending end of section radially extends is stretched by the axis, is supported in the inserting paragraph inserting to the jack with stopping
The tail end of the slide plate.
3. compression mechanism according to claim 2, which is characterized in that the jack is not opened in the height of the slide plate
Heart position.
4. compression mechanism according to claim 2, which is characterized in that have along the height side of the slide plate on the slide plate
To the guide groove of extension, the guide groove is connected to the jack and for importing the inserting paragraph in the jack.
5. compression mechanism according to claim 2, which is characterized in that the periphery of the middle partition board have cut off in an axial direction with
The notch of section is stretched for avoiding the axis.
6. compression mechanism according to claim 1, which is characterized in that the main paragraph is two and is located at the middle partition board
Both sides.
7. compression mechanism according to claim 1, which is characterized in that the main paragraph is two and is located at the middle partition board
Homonymy and axially spaced.
8. compression mechanism according to claim 1, which is characterized in that the main paragraph is one.
9. compression mechanism according to claim 1, which is characterized in that have groove, institute on the peripheral surface of the middle partition board
Fixed part is stated towards the axis direction protrusion of the middle partition board and is embedded in the groove.
10. compression mechanism according to claim 1, which is characterized in that tight with radially wearing on the middle partition board
Firmware, the fixed part is around being located on the fastener.
11. compression mechanism according to claim 1, which is characterized in that have locating shaft, the fixed part on the cylinder
It is directed away from the axis direction protrusion of the middle partition board and around being located on the locating shaft.
12. according to the compression mechanism described in any one of claim 1-11, which is characterized in that the extension spring part is one
Continuous wire form springs.
13. a kind of multi-cylinder rotary compressor, which is characterized in that including：
Shell；
Compression mechanism, the compression mechanism are located in the shell and are the compression according to any one of claim 1-12
Mechanism；With
Driving mechanism, the driving mechanism are located in the shell and for driving the compression mechanism to execute compressed action.
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| CN201810539742.XA CN108799114A (en) | 2018-05-30 | 2018-05-30 | Multi-cylinder rotary compressor and its compression mechanism |
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| CN201810539742.XA CN108799114A (en) | 2018-05-30 | 2018-05-30 | Multi-cylinder rotary compressor and its compression mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109759736A (en) * | 2019-03-28 | 2019-05-17 | 昆山华恒焊接股份有限公司 | Compressor Concentric locating device and compressor welding system with the device |
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| CN109759736B (en) * | 2019-03-28 | 2023-09-26 | 昆山华恒焊接股份有限公司 | Compressor concentric positioning device and compressor welding system with same |
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