CN204239252U

CN204239252U - Rotary compressor

Info

Publication number: CN204239252U
Application number: CN201420668132.7U
Authority: CN
Inventors: 吴多更
Original assignee: Guangdong Meizhi Compressor Co Ltd
Current assignee: Guangdong Midea Toshiba Compressor Corp; Guangdong Meizhi Compressor Co Ltd
Priority date: 2014-11-07
Filing date: 2014-11-07
Publication date: 2015-04-01
Anticipated expiration: 2024-11-07

Abstract

The utility model discloses a kind of rotary compressor, comprising: housing, compressing mechanism, motor and baffle ring, described compressing mechanism is located in described housing; Described motor is located in described housing, and described motor comprises stators and rotators assembly, and described rotor assembly is connected with described compressing mechanism; Described baffle ring is set at least one end in the axial two ends of described rotor assembly.According to rotary compressor of the present utility model, by at least one end in the axial two ends of rotor assembly, baffle ring is set, thus effectively can reduce rotary compressor such as single cylinder compressor tell oil mass and flow resistance, and then the efficiency of rotary compressor can be promoted.In addition, the structure of rotary compressor is simple, easy processing, and easy for installation.

Description

Rotary compressor

Technical field

The utility model relates to art of refrigeration units, especially relates to a kind of rotary compressor.

Background technique

Point out in correlation technique, the rotor assembly of the motor of rotary compressor comprises: rotor iron core, rivet, equilibrium block, plate shaped end plate, wherein, because equilibrium block exists windward side, rotary compressor is caused to cause efficiency to decline because of flow resistance loss thus, and a large amount of refrigerator oils be mixed in rotor assembly convection cell effectively cannot be separated, stop, thus it is larger to cause rotary compressor to tell oil mass, reduce reliability and the system heat exchange efficiency of rotary compressor, and then causing rotary compressor more easy to wear, systematic function declines.

Model utility content

The utility model is intended at least to solve one of technical problem existed in prior art.For this reason, an object of the present utility model is to propose a kind of rotary compressor, and the structure of described rotary compressor is simple.

According to rotary compressor of the present utility model, comprising: housing; Compressing mechanism, described compressing mechanism is located in described housing; Motor, described motor is located in described housing, and described motor comprises stators and rotators assembly, and described rotor assembly is connected with described compressing mechanism; And baffle ring, described baffle ring is set at least one end in the axial two ends of described rotor assembly.

According to rotary compressor of the present utility model, by at least one end in the axial two ends of rotor assembly, baffle ring is set, thus effectively can reduce rotary compressor such as single cylinder compressor tell oil mass and flow resistance, and then the efficiency of rotary compressor can be promoted.In addition, the structure of rotary compressor is simple, easy processing, and easy for installation.

Particularly, described rotor assembly comprises: rotor; And equilibrium block, described equilibrium block is located at least one end in the described axial two ends of described rotor, and wherein said baffle ring is set in outside described equilibrium block.

Alternatively, the inner circumferential of described baffle ring is provided with projection, and the periphery of described equilibrium block is formed with groove, and described groove and described male cooperation are to be connected to described equilibrium block by described baffle ring.

Further alternatively, described projection is formed to projecting inward by a part for the periphery of described baffle ring.

Alternatively, the outer surface of described projection is the combination of curved surface, folding face or curved surface and plane.

Or alternatively, described projection is formed by the inside bending of a part for the periphery of described baffle ring.

Further, described groove runs through a side end face of the described rotor of vicinity of described equilibrium block.

Alternatively, the cross-section area of one end of the described rotor of the vicinity of described groove is greater than the cross-section area of one end away from described rotor of described groove.

Alternatively, the end face at the axial two ends of described equilibrium block is run through at the two ends of described groove respectively.

Alternatively, described groove is cone tank, dovetail groove or ladder-type groove.

Alternatively, described projection is the circumferential uniform intervals distribution of multiple and described multiple projection along described baffle ring, and described groove is multiple and described multiple groove and described multiple protruding one_to_one corresponding.

Alternatively, the internal diameter of described baffle ring is greater than the external diameter of described equilibrium block, and the difference d between the internal diameter of described baffle ring and the external diameter of described equilibrium block meets: 0.1 μm≤d≤6mm.

Or alternatively, described baffle ring and described equilibrium block interference fit.

Alternatively, the external diameter of described baffle ring is less than or equal to the external diameter of described rotor.

Or alternatively, described rotor assembly comprises rotor, wherein said baffle ring is set at least one end in the axial two ends of described rotor.

Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.

Accompanying drawing explanation

Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:

Fig. 1 is the sectional drawing of the rotary compressor according to the utility model embodiment;

Fig. 2 is the side view of the rotor assembly shown in Fig. 1;

Fig. 3 is the sectional drawing along A-A line in Fig. 2;

Fig. 4 is the explosive view of the equilibrium block shown in Fig. 1 and baffle ring;

Fig. 5 is the explosive view of another angle of the equilibrium block shown in Fig. 1 and baffle ring;

Fig. 6 a is the stereogram of the baffle ring shown in Fig. 4 and Fig. 5;

Fig. 6 b is the stereogram of another angle of the baffle ring shown in Fig. 4 and Fig. 5;

Fig. 6 c is the plan view of Fig. 6 a and the baffle ring shown in Fig. 6 b;

Fig. 6 d is the sectional drawing along B-B line in Fig. 6 c;

Fig. 7 is another schematic diagram of the baffle ring according to the utility model embodiment;

Fig. 8 is another schematic diagram of the baffle ring according to the utility model embodiment;

Fig. 9 a is the plan view of the equilibrium block shown in Fig. 4 and Fig. 5;

Fig. 9 b is the left view of the equilibrium block shown in Fig. 9 a;

Fig. 9 c is the sectional drawing of the equilibrium block shown in Fig. 9 b;

Fig. 9 d is the right elevation of the equilibrium block shown in Fig. 9 a;

Fig. 9 e is the plan view of the equilibrium block shown in Fig. 9 a;

Fig. 9 f is the worm's eye view of the equilibrium block shown in Fig. 9 a;

Figure 10 is according to the noise of the rotary compressor of the utility model embodiment and traditional rotary compressor and the schematic diagram telling oil mass;

Figure 11 is the schematic diagram according to the rotary compressor of the utility model embodiment and the COP (Coefficient of Performance, the coefficient of performance) of traditional rotary compressor.

Reference character:

100: rotary compressor;

1: housing;

21: main bearing; 22: cylinder; 23: supplementary bearing; 24: bent axle;

3: motor; 31: stator; 32: rotor assembly;

321: rotor; 322: equilibrium block;

3221: body; 3222: boss; 3223: groove; 3224: mounting hole;

4: baffle ring; 41: protruding; 5: rivet.

Embodiment

Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.

In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more.

In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.

Below with reference to Fig. 1-Figure 11, the rotary compressor 100 according to the utility model embodiment is described.Rotary compressor 100 can be single cylinder compressor.In description below the application, be described for single cylinder compressor for rotary compressor 100.Certainly, those skilled in the art are appreciated that rotary compressor 100 can also be multicylinder compressor such as duplex cylinder compressor.

As shown in Figure 1, according to the rotary compressor 100 such as single cylinder compressor of the utility model embodiment, housing 1, compressing mechanism, motor 3 and baffle ring 4 is comprised.

With reference to Fig. 1, housing 1 is vertically arranged, motor 3 and compressing mechanism are all located in housing 1, and motor 3 and compressing mechanism are arranged in the vertical direction, and motor 3 is positioned at the top of compressing mechanism.Motor 3 is for driving compressing mechanism to compress the refrigerant entered in compressing mechanism.

When rotary compressor 100 is single cylinder compressor, compressing mechanism comprises a cylinder 22, compressing mechanism also comprises main bearing 21, supplementary bearing 23, piston (scheming not shown) and slide plate (scheming not shown), specifically, main bearing 21 is located at the top of cylinder 22, and supplementary bearing 23 is located at the bottom of cylinder 22, main bearing 21, compression chamber is limited between cylinder 22 and supplementary bearing 23, piston is located in compression chamber and inwall along compression chamber can roll, cylinder 22 is formed with the radial vane slot extended, slide plate is located in vane slot movably, the inner of slide plate and the periphery wall of piston only support.When piston rolls, can the refrigerant entered in compression chamber be compressed.Here, it should be noted that, direction " interior " refers to towards the direction at cylinder 22 center, and its opposite direction is defined as " outward ", namely away from the direction at cylinder 22 center.

Compressing mechanism also comprises bent axle 24, and the upper end of bent axle 24 is connected with motor 3, and main bearing 21, cylinder 22 and supplementary bearing 23 are run through in the lower end of bent axle 24, and piston sleeve is located on the eccentric part of bent axle 24.When motor 3 works, dynamic crankshaft 24 can be with to rotate, and then drive and be set in the piston on its eccentric part and roll along the inwall of compression chamber, thus compress into the refrigerant in compression chamber.

When rotary compressor 100 is multicylinder compressor, compressing mechanism comprises multiple cylinder 22, and multiple cylinder 22 is arranged in the vertical direction, and is provided with dividing plate between two often adjacent cylinders 22.Be appreciated that other structure of multicylinder compressor is substantially identical with the structure of single cylinder compressor, and known by those skilled in the art, do not repeat them here.

With reference to Fig. 2 composition graphs 3, motor 3 comprises stator 31 and rotor assembly 32, and rotor assembly 32 is coaxially located in stator 31 rotationally, and stator 31 is suitable for being fixed on the inwall of housing 1, and rotor assembly 32 is connected with compressing mechanism, rotates to be with dynamic crankshaft 24.

Wherein, baffle ring 4 is formed as ring-type, and baffle ring 4 is set at least one end in the axial two ends of rotor assembly 32.That is, baffle ring 4 only can be set in one end away from cylinder 22 of rotor assembly 32, also only can be set in one end of the contiguous cylinder 22 of rotor assembly 32, or baffle ring 4 is set in the two ends of rotor assembly 32 respectively.

Alternatively, baffle ring 4 is shaping by metal casting, forging, punching press or cutting.Be appreciated that the concrete molding mode of baffle ring 4 specifically can be selected according to actual requirement, the utility model does not do concrete restriction to this.

Such as, as shown in Figure 1 and in conjunction with Figure 10 and Figure 11, in the upper end of rotor assembly 32, baffle ring 4 is set, the Flow Field Distribution of the refrigerant after the compression in housing 1 can be changed, according to the rotary compressor 100 such as single cylinder compressor of the utility model embodiment compared with traditional rotary compressor 100, noise and tell oil mass and be reduced, and the performance of rotary compressor 100 gets a promotion.

According to the rotary compressor 100 such as single cylinder compressor of the utility model embodiment, by at least one end in the axial two ends of rotor assembly 32, baffle ring 4 is set, thus effectively can reduce rotary compressor 100 such as single cylinder compressor tell oil mass and flow resistance, and then the efficiency of rotary compressor 100 can be promoted.In addition, the structure of rotary compressor 100 is simple, easy processing, and easy for installation.

According to an embodiment of the present utility model, rotor assembly 32 comprises: rotor 321 and equilibrium block 322, equilibrium block 322 is located at least one end in the axial two ends of rotor 321, in other words, equilibrium block 322 only can be located at the wherein one end in the axial two ends of rotor 321, also can be located at the axial two ends of rotor 321 simultaneously.Equilibrium block 322 is for playing the effect of balancing rotor 321.

With reference to Fig. 4 and Fig. 5 composition graphs 9a-Fig. 9 f, equilibrium block 322 comprises body 3221 and boss 3222, and body 3221 is roughly circular, and boss 3222 is roughly arc-shaped, but is not limited thereto.Boss 3222 is connected to the side away from rotor 321 of body 3221 on the surface, and boss 3222 is positioned at the side (upside such as, in Fig. 9 a) of body 3221.Wherein baffle ring 4 is set in outside equilibrium block 322, and the inner circle wall of baffle ring 4 can be formed as the shape suitable with the shape of the periphery wall of equilibrium block 322.

Alternatively, equilibrium block 322 can be linked into an integrated entity by rivet 5 and rotor 321.Such as, as shown in Fig. 3-Fig. 5, Fig. 9 a and Fig. 9 c, equilibrium block 322 is formed with multiple mounting hole 3224, multiple mounting hole 3224 is uniform intervals distribution in the circumference of body 3221, and each mounting hole 3224 runs through the axial two ends end face of equilibrium block 322 along the axis of body 3221.During assembling, rivet 5 from one end of the far from equilibrium block 322 of rotor 321 successively through the mounting hole 3224 rotor 321 and equilibrium block 322, thus can realize the connection of rotor 321 and equilibrium block 322.Certainly, equilibrium block 322 alternate manner and the equilibrium block 322 such as can also to be bolted and to form as one structure.

With reference to Fig. 3-Fig. 5, the inner circumferential of baffle ring 4 is provided with protruding 41, and the periphery of equilibrium block 322 is formed with groove 3223, with protruding 41, groove 3223 coordinates that baffle ring 4 is connected to equilibrium block 322.Wherein, projection 41 is positioned at the side of the adjacent rotor 321 of baffle ring 4.Thus, by arranging protruding 41 and groove 3223, baffle ring 4 and equilibrium block 322 can link into an integrated entity securely, and easy for installation, and efficiency of assembling is high.

Such as, protruding 41 formed to projecting inward by a part for the periphery of baffle ring 4, as shown in Fig. 6 a-Fig. 6 d.Here, it should be noted that, direction " interior " refers to towards the direction at baffle ring 4 center, and its opposite direction is defined as " outward ", namely away from the direction at baffle ring 4 center.Certainly, protruding 41 can also form (scheming not shown) from the inner circumferential of baffle ring 4 is projecting inward, and now protruding 41 is entity structure.

Alternatively, the outer surface of protruding 41 is the combination of curved surface, folding face or curved surface and plane.Such as in the example of Fig. 6 d, the outer surface of protruding 41 is formed as the sphere protruded towards the center of baffle ring 4, and thus, processing is simple and cost is low.Certainly, the utility model is not limited thereto, and such as in the example in figure 7, protruding 41 are formed as triangular shaped, and now the outer surface of protruding 41 is made up of two planes formed an angle, and namely the outer surface of protruding 41 is folding face.Or as shown in Figure 8, protruding 41 can also be formed by the inside bending of a part for the periphery of baffle ring 4.Be appreciated that the concrete shape of protruding 41 can require to arrange according to practical set, the utility model does not make particular determination to this.

With reference to Fig. 4 and Fig. 5 composition graphs 9b-Fig. 9 f, groove 3223 runs through a side end face of the adjacent rotor 321 of equilibrium block 322 (such as, left side in Fig. 9 c), and the side end face away from rotor 321 not running through equilibrium block 322 (such as, right side in Fig. 9 c), now the degree of depth (namely at the height axially of equilibrium block 322) of groove 3223 is less than the axial height of equilibrium block 322, and be less than the thickness of body 3221, can prevent baffle ring 4 from moving towards the direction away from rotor 321 like this, even come off from equilibrium block 322, thus further ensure the reliability that equilibrium block 322 is connected with baffle ring 4.Thus, during installation, direction shown in installation diagram 5 equilibrium block 322 can be put into baffle ring 4, the projection 41 of baffle ring 4 first by the opening end (i.e. a side end face of above-mentioned adjacent rotor 321) of groove 3223, then can enter in groove 3223.

Certainly, the cross-section area of one end (left end such as, in Fig. 9 c) of the adjacent rotor 321 of groove 3223 can also be greater than the cross-section area of one end away from rotor 321 (right-hand member such as, in Fig. 9 c) of groove 3223.Such as, along equilibrium block 322 axial, from one end of the adjacent rotor 321 of groove 3223 towards its direction away from one end of rotor 321, the cross-section area of groove 3223 reduces gradually, and now groove 3223 can be cone tank or dovetail groove.Or groove 3223 can also be ladder-type groove.

When the cross-section area of one end of the adjacent rotor 321 of groove 3223 is greater than the cross-section area of one end away from rotor 321 of groove 3223, the two ends of groove 3223 can run through the end face at the axial two ends of equilibrium block 322 respectively, now the outer surface of protruding 41 can be formed as the shape suitable with the shape of the internal surface of groove 3223, thus, protruding 41 not easily deviate from from one end away from rotor 321 of groove 3223.

Alternatively, protruding 41 be multiple, and multiple protruding 41 along the circumferential uniform intervals distribution of baffle ring 4, and groove 3223 is multiple, and multiple groove 3223 and multiple protruding 41 one_to_one corresponding.Such as, with reference to Fig. 4 and Fig. 5 composition graphs 6c, projection 41 and groove 3223 are respectively four, and four projections 41 uniform intervals in the circumference of baffle ring 4 is opened, and four grooves 3223 uniform intervals in the circumference of equilibrium block 322 is opened, and the angle between two now often adjacent projections 41 is 90 °, correspondingly, angle between two often adjacent grooves 3223 is also 90 °, and four projections 41 and four groove 3223 one_to_one corresponding coordinate, thus can by baffle ring 4 and the firm connection of equilibrium block 322.Be appreciated that protruding 41 and the number of groove 3223 and arrangement etc. can require and adaptive change according to practical set, the utility model does not make particular determination to this.

Baffle ring 4 and equilibrium block 322 are all roughly circular, and the internal diameter of baffle ring 4 is greater than the external diameter of equilibrium block 322, and the difference d between the external diameter of the internal diameter of baffle ring 4 and equilibrium block 322 meets: 0.1 μm≤d≤6mm.Its concrete numerical value can require and specific design according to as installed, and the utility model does not do concrete restriction to this.

Certainly, baffle ring 4 interference fit all right with equilibrium block 322, to link together securely, now the internal diameter of baffle ring 4 is less than the external diameter of equilibrium block 322.

Wherein, the external diameter of baffle ring 4 is less than or equal to the external diameter of rotor 321, and to prevent baffle ring 4 from hindering refrigerant upwards to flow, and baffle ring 4 is easy to assembly.

According to another embodiment of the present utility model, rotor assembly 32 comprises rotor 321, and wherein baffle ring 4 is set at least one end in the axial two ends of rotor 321, and now baffle ring 4 can be directly installed on rotor 321.Wherein, baffle ring 4 only can be arranged on the wherein one end at the axial two ends of rotor 321, or baffle ring 4 can also be arranged on the axial two ends of rotor 321 simultaneously.Thus, reduction rotary compressor 100 can be played equally and tell oil mass and flow resistance, promote the object of rotary compressor 100 efficiency.

Certainly, according to another embodiment of the present utility model, the axial two ends of rotor 321 are respectively equipped with an equilibrium block 322, are arranged with baffle ring 4, as shown in Figure 3 outside one of them equilibrium block 322.Be appreciated that the concrete setting position of baffle ring 4 can adaptive change according to the actual requirements, to meet actual requirement better.

According to the rotary compressor 100 such as single cylinder compressor of the utility model embodiment, have simple and reasonable, easy processing, the advantage such as easy for installation, can meet volume production processing request.

According to the rotary compressor 100 of the utility model embodiment other form and operation be all known to those skilled in the art, be not described in detail here.

In the description of this specification, specific features, baffle ring, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, baffle ring, material or feature can combine in an appropriate manner in any one or more embodiment or example.

Although illustrate and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and aim, scope of the present utility model is by claim and equivalents thereof.

Claims

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

Housing;

Compressing mechanism, described compressing mechanism is located in described housing;

Motor, described motor is located in described housing, and described motor comprises stators and rotators assembly, and described rotor assembly is connected with described compressing mechanism; And

Baffle ring, described baffle ring is set at least one end in the axial two ends of described rotor assembly.

2. rotary compressor according to claim 1, is characterized in that, described rotor assembly comprises:

Rotor; With

Equilibrium block, described equilibrium block is located at least one end in the described axial two ends of described rotor, and wherein said baffle ring is set in outside described equilibrium block.

3. rotary compressor according to claim 2, is characterized in that, the inner circumferential of described baffle ring is provided with projection, and the periphery of described equilibrium block is formed with groove, and described groove and described male cooperation are to be connected to described equilibrium block by described baffle ring.

4. rotary compressor according to claim 3, is characterized in that, described projection is formed to projecting inward by a part for the periphery of described baffle ring.

5. rotary compressor according to claim 3, is characterized in that, the outer surface of described projection is the combination of curved surface, folding face or curved surface and plane.

6. rotary compressor according to claim 3, is characterized in that, described projection is formed by the inside bending of a part for the periphery of described baffle ring.

7. rotary compressor according to claim 3, is characterized in that, described groove runs through a side end face of the described rotor of vicinity of described equilibrium block.

8. rotary compressor according to claim 3, is characterized in that, the cross-section area of one end of the described rotor of vicinity of described groove is greater than the cross-section area of one end away from described rotor of described groove.

9. rotary compressor according to claim 8, is characterized in that, the end face at the axial two ends of described equilibrium block is run through at the two ends of described groove respectively.

10. rotary compressor according to claim 8, is characterized in that, described groove is cone tank, dovetail groove or ladder-type groove.

11. rotary compressors according to claim 3, is characterized in that, described projection is the circumferential uniform intervals distribution of multiple and described multiple projection along described baffle ring, and described groove is multiple and described multiple groove and described multiple protruding one_to_one corresponding.

12. rotary compressors according to claim 2, is characterized in that, the internal diameter of described baffle ring is greater than the external diameter of described equilibrium block, and the difference d between the internal diameter of described baffle ring and the external diameter of described equilibrium block meets: 0.1 μm≤d≤6mm.

13. rotary compressors according to claim 2, is characterized in that, described baffle ring and described equilibrium block interference fit.

14. rotary compressors according to any one of claim 2-13, it is characterized in that, the external diameter of described baffle ring is less than or equal to the external diameter of described rotor.

15. rotary compressors according to claim 1, is characterized in that, described rotor assembly comprises rotor, and wherein said baffle ring is set at least one end in the axial two ends of described rotor.