CN203272056U

CN203272056U - Sealed compressor

Info

Publication number: CN203272056U
Application number: CN 201320071061
Authority: CN
Inventors: 佐佐卓士
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 2012-02-09
Filing date: 2013-02-07
Publication date: 2013-11-06
Anticipated expiration: 2023-02-07
Also published as: JP2013160217A

Abstract

The utility model provides a sealed compressor. A convex part (8a) is arranged on the external diameter of a bushing (8) and is clung to the inner peripheral surface of a suction channel (7) and is sealed, so that the stress deformation of a compressing mechanism part (5) is reduced and the heat transfer of soldering is reduced; a convex part (8b) the outer peripheral surface of which is a spherical cambered surface with a center point in the axis of the bushing (8) is arranged, so that soldering and fixing can be carried out under the condition that the axis of a guiding tube (3) which is fixed on a connecting port (2) deviates the axis of a cylindrical space of the suction channel (7). The sealed compressor has the advantages that the performance, the reliability and the assembling property are excellent.

Description

Hermetic type compressor

Technical field

The utility model relates to the hermetic type compressor for air conditioner, refrigerated warehouse, water heater etc.

Background technique

In prior art, in the refrigeration agent sucting of this hermetic type compressor, be connected (for example, with reference to patent documentation 1) with lining between the suction path that is arranged at compression mechanical part and the connection mouth that is arranged at seal container.

Fig. 5 is the sectional view of the existing hermetic type compressor of patent documentation 1 record, and Fig. 6 is the amplification sectional view of the refrigeration agent sucting of Fig. 5.

As Fig. 5, shown in Figure 6, be formed with connection mouth 2 at the seal container 1 that is consisted of by iron material.At connection mouth 2, utilize silver solder 4 solderings to be fixed with the leading pipe 3 that is consisted of by copper pipe.On the other hand, the suction path 7 with the pressing chamber 6 of compression mechanical part 5 inside is connected is formed at the cylinder 16 that is made of iron material.Sucking path 7 is made of cylindric space.The cylindric outer circumferential face of lining (liner) 8 contacts by face and is fixed in the cylindric inner peripheral surface that sucks path 7.Because the cylindric inner peripheral surface that sucks path 7 and the cylindric outer circumferential face of lining 8 are close to sealing, isolate so will suck the Exhaust Gas refrigeration agent of refrigeration agent and seal container 1 inside.

Lining 8 is made of iron material, and to whole or part enforcement copper facing.The suction connection 9 that is connected with reservoir (accumulator) 20 is made of copper product.The copper facing section of leading pipe 3, lining 8 and suction connection 9 utilize copper solder 10 and the soldering one is fixed.Thus, the outside with lining 8 and leading pipe 3 and seal container 1 cuts off.

Refrigeration agent sucting 11 comprises: connection mouth 2, leading pipe 3, suction path 7, lining 8 and suction connection 9.

Motor part 14 comprises stator 12 and rotor 13.The both ends of the surface of cylinder 16 are by upper bearing (metal) 17 and lower bearing 18 sealings.Piston 19 arranged the eccentric part 15a of bent axle 15 is chimeric.

Compression mechanical part 5 comprises cylinder 16, upper bearing (metal) 17, lower bearing 18 and piston 19.

Below, compression mechanical part 5 and motor part 14 are described to the assembling procedure in seal container 1.

Stator 12 is fixed in seal container 1 inside by hot jacket in advance.Hot jacket is fixed with the bent axle 15 of rotor 13 and compression mechanical part 5 and inserts from the lower openings section of seal container 1.Then, be welded and fixed cylinder 16 at seal container 1.At this moment, the axle center in cylindric space of the suction path 7 that is arranged at cylinder 16 and the axle center of leading pipe 3 roughly as one man are welded and fixed.Then, the inside by leading pipe 3 that makes external diameter (φ D2) than the large some lining 8 of the internal diameter (φ d1) that sucks path 7 is pressed into to be fixed in and sucks path 7.Be pressed into fixingly by this, will suck an end sealing of path 7 and lining 8.And then at the copper facing inside diameter insertion suction connection 9 of these lining 8 the other ends, the other end of the other end of lining 8, leading pipe 3 and suction connection 9 utilize 10 solderings of copper solder to fix.

The look-ahead technique document

Patent documentation

Patent documentation 1: Japanese kokai publication sho 63-36075 communique

Summary of the invention

The problem that model utility will solve

But, in existing structure, in order to ensure being close to sealing, and insert the external diameter lining 8 larger a little than internal diameter that sucks path 7, make the problem of the Performance And Reliability variation of compression mechanical part 5 so have being close to the whole stress deformation that produces stress, generation of sealing surface.The heat effect that also has the copper solder 10 of the other end of the other end, leading pipe 3 of lining 8 and suction connection 9 is delivered to via lining 8 and sucks path 7, the problem that the Performance And Reliability of compression mechanical part 5 is worsened.In addition, in existing structure, must make the axle center in the cylindric space that sucks path 7 and the axle center of leading pipe 3 roughly as one man be welded and fixed accurately compression mechanical part 5.Therefore, in the situation that the axis deviation of leading pipe 3 sucks the axle center in the cylindric space of path 7, when lining 8 inserts suction path 7, have inner generation of suction path 7 and block, the problem that maybe can not insert.

The utility model is the model utility that solves present problem, purpose is to provide a kind of hermetic type compressor, it sucks the part of being close to sealing of path and lining by the ground inhibition of necessary inferior limit, improve the assembling margin, the axis deviation that can also guide pipe sucks being welded and fixed in the situation in axle center in cylindric space of path, and performance, reliability, assembling performance are excellent.

Be used for solving the method for problem

In order to solve present problem, the utility model provides a kind of hermetic type compressor, it is characterized in that: have compression mechanical part and via the motor of crank-driven above-mentioned compressor structure section in seal container, and have from the outside of above-mentioned seal container and gas refrigerant is imported to the refrigeration agent sucting of above-mentioned compressor structure section, wherein above-mentioned refrigeration agent sucting has: the suction path that is communicated with the pressing chamber of above-mentioned compressor structure section; Be fixed in the leading pipe of the connection mouth that arranges at above-mentioned seal container; And be configured in lining between above-mentioned suction path and above-mentioned leading pipe, and be formed with protuberance in the periphery of above-mentioned lining, utilize the inner peripheral surface of raised part and above-mentioned suction path to be close to sealing.

Thus, reduce the stress deformation to compression mechanical part that the insertion of liner causes, and guarantee to be close to sealing, and the heating when reducing soldering fixed-bearing, leading pipe and suction connection cause to sucking the heat transmission of path.

The effect of model utility

Hermetic type compressor of the present utility model can reduce lining and insert to sucking path the stress deformation to compression mechanical part that causes, and guarantee to be close to sealing, and the heating when reducing soldering stationary bushing, leading pipe and suction connection cause to sucking the heat transmission of path.

Description of drawings

Fig. 1 is the sectional view of refrigeration agent sucting of the hermetic type compressor of the utility model mode of execution 1.

Fig. 2 is the sectional view of refrigeration agent sucting of the hermetic type compressor of the utility model mode of execution 2.

Sectional view when Fig. 3 is the longitudinal direction axle misalignment of the explanation suction path of this hermetic type compressor and leading pipe.

Sectional view when Fig. 4 is the circumferencial direction axle misalignment of the explanation suction path of this hermetic type compressor and leading pipe.

Fig. 5 is the sectional view of existing hermetic type compressor.

Fig. 6 is the sectional view of the refrigeration agent sucting of this hermetic type compressor.

The reference numeral explanation

1 seal container

2 connection mouths

3 leading pipes

4 silver solders

5 compression mechanical parts

6 pressing chambers

7 suck path

8 linings

The 8a protuberance

8b spherical shape protuberance

9 suction connections

10 bronze medal solders

11 refrigeration agent suctings

12 stators

13 rotors

14 motor part

15 bent axles

Embodiment

The first model utility is a kind of hermetic type compressor, it has compression mechanical part and via the motor of crankshaft-drive compressors structure section in seal container, and have from the outside of seal container and gas refrigerant is imported to the refrigeration agent sucting of compression mechanical part, wherein the refrigeration agent sucting has: the suction path that is communicated with the pressing chamber of compression mechanical part; Be fixed in the leading pipe of the connection mouth that arranges at seal container; And be configured in the lining that sucks between path and leading pipe, and be formed with protuberance in the periphery of lining, utilize protuberance and the inner peripheral surface that sucks path to be close to sealing.Thus, can the ground inhibition of necessary inferior limit put on the stress deformation that sucks path from liner.And then the heat that can reduce the copper solder of the other end of the other end, leading pipe of liner and suction connection is delivered to cylinder via liner from sucking path, can improve the Performance And Reliability of compression mechanical part.

Particularly on the basis of the first model utility, the outer circumferential face of protuberance is for having the spheroform surface of central point on the axle center of lining for the second model utility.Thus, in the situation that be fixed in the axle center that the axis deviation of the leading pipe of connection mouth sucks path, the assembling margin of liner can be improved, assembly failure can be reduced.That is, suck the margin that departs from the axle center of the axle center of path and leading pipe by raising, can reduce assembly failure.

Below, with reference to accompanying drawing, mode of execution of the present utility model is described.In addition, the utility model is not limited by this mode of execution.

(mode of execution 1)

Fig. 1 represents the sectional view of the refrigeration agent sucting of the utility model mode of execution 1.The basic structure of hermetic type compressor is identical with structure shown in Figure 5, so the incomplete structure explanation except refrigeration agent sucting 11.

As shown in Figure 1, mode of execution 1 is provided with the protuberance 8a of the ring-type of outside dimension φ D3 at the outer circumferential face of lining 8 one ends.Lining 8 comprise one distolateral for outside dimension φ D5 cylinder and another distolaterally be the cylinder of outside dimension φ D6.Outside dimension φ D6 is larger than outside dimension φ D5.Protuberance 8a is formed at the cylinder of outside dimension φ D5.The front end more forward than protuberance 8a is the cylinder of outside dimension φ D5.Compare with the internal diameter size φ d1 that sucks path 7, by for example increasing a little outside dimension φ D3(, make outside dimension φ D3 and increase the size of 10～60 μ m degree with respect to the internal diameter size φ d1 that sucks path 7), the outer circumferential face of protuberance 8a is close to the inner peripheral surface of the suction path 7 of the pressing chamber 6 that is connected in compression mechanical part 5 and is brought into play sealing effect.

As illustrated in fig. 5, the refrigeration agent sucting 11 that imports gas refrigerants to compression mechanical part 5 from the outside of seal container 1 comprises: the suction path 7 that is communicated with the pressing chamber 6 of compression mechanical part 5; Be fixed in the leading pipe 3 of the connection mouth 2 that arranges at seal container 1; And be disposed at the lining 8 that sucks between path 7 and leading pipe 3.In addition, refrigeration agent sucting 11 also has the suction connection 9 that imports refrigerant gas from reservoir 20.

Connection mouth 2 is formed at the seal container 1 that is made of iron material.Suck path 7 and be formed at the cylinder 16 that is consisted of by iron material.Sucking path 7 is made of cylindric space.The lining 8 that is made of iron material is implemented copper facing whole or a part.

To as the assembling procedure of the refrigeration agent sucting 11 of the hermetic type compressor of above formation describe.

The leading pipe 3 that is made of copper pipe utilizes silver solder 4 solderings to be fixed in connection mouth 2.Cylinder 16 is fixed in seal container 1 in the axle center mode consistent with the axle center of leading pipe 3 in the cylindric space of suction path 7.One end of lining 8 is close to fixing by protuberance 8a with suction path 7.The front end of protuberance 8a contacts with the inner peripheral surface that sucks path 7 by substantial line to be close to, with

lining

8 and 7 sealings of suction path.Suction connection 9 is inserted into the other end of lining 8.The other end of the other end of lining 8, leading pipe 3 and suction connection 9 utilize 10 solderings of copper solder to fix.

As mentioned above, in the present embodiment, be the outer circumferential face that is arranged at the protuberance 8a of lining 8 by lining 8 with the sealed department of being close to that sucks path 7, can the ground inhibition of necessary inferior limit put on the stress deformation that sucks path 7 from lining 8.And then the heat that can reduce the copper solder 10 of the other end of the other end, leading pipe 3 of lining 8 and suction connection 9 is delivered to cylinder 16 via lining 8 from sucking path 7, can improve the Performance And Reliability of compression mechanical part 5.

(mode of execution 2)

Fig. 2 is the sectional view of refrigeration agent sucting of the hermetic type compressor of the utility model mode of execution 2, Fig. 3 is under the state of the longitudinal direction of the axis deviation compressor of the leading pipe of this hermetic type compressor, the sectional view of the refrigeration agent sucting when leading pipe and seal container are welded and fixed, Fig. 4 is under the state of the circumferencial direction of the axis deviation compressor of the leading pipe of this hermetic type compressor, the sectional view of the refrigeration agent sucting when leading pipe and seal container are welded and fixed.In addition, also description thereof is omitted to the identical symbol of the structure mark identical with the first mode of execution.

In mode of execution 2, be provided with the protuberance 8b of outside dimension φ D4 at the outer circumferential face of lining 8 one ends.It is circular shape that protuberance 8b makes by the peripheral shape at least in the cross section in the axle center of lining 8.In figure, expression is by the peripheral shape in the cross section in the axle center of lining 8 and the protuberance 8b that interior week is shaped as circular shape.Particularly preferably the outer circumferential face of protuberance 8b is the spheroform surface that has the outside dimension φ D4 of central point on the axle center of lining 8.

According to present embodiment, the outer circumferential face of protuberance 8b contacts with suction path 7 substantial line.Therefore, suck path 7 and lining 8 be close under the state of sealing fixing.

As shown in Figure 2, preferably in the axle center of leading pipe 3 mode consistent with the axle center that sucks path 7, leading pipe 3 is fixed in seal container 1.

But, as shown in Figure 3, in the axle center of the longitudinal direction of the axis deviation compressor of leading pipe 3 and leading pipe 3 under the state of the axis deviation δ that sucks path 7, even in the situation that leading pipe 3 is welded and fixed with seal container 1, lining 8 is also with respect to the axle center tilt alpha that sucks path 7 °, and the protuberance 8b of spheroform surface with suck path 7 and be close to.Thus, assemble with can keeping sealing.

In addition, as shown in Figure 4, depart from from the axle center rotation that sucks path 7 in the axle center of the circumferencial direction of the axis deviation compressor of leading pipe 3 and leading pipe 3 under the state of β °, even in the situation that leading pipe 3 is welded and fixed with seal container 1, lining 8 is also with respect to γ ° of the axle center inclination that sucks path 7, and the protuberance 8b of spheroform surface is close to suction path 7.Thus, assemble with can keeping sealing.

As mentioned above, in the present embodiment, by making lining 8 and sucking the protuberance 8b that has the spheroform surface of central point on the axle center of being close to sealed department and becoming lining 8 of path 7, on the effect basis of mode of execution 1, can improve the assembling margin of refrigeration agent sucting 11 and improve the quality of compressor.

Utilize possibility on industry

The utility model is not only applicable to the hermetic type compressor of air conditioner, can also be applicable to the hermetic type compressor that refrigerated warehouse, water heater are used.

Claims

1. hermetic type compressor is characterized in that:

Have compression mechanical part and via the motor of the described compression mechanical part of crank-driven in seal container, and have from the outside of described seal container and gas refrigerant is imported to the refrigeration agent sucting of described compression mechanical part, wherein

Described refrigeration agent sucting has: the suction path that is communicated with the pressing chamber of described compression mechanical part; Be fixed in the leading pipe of the connection mouth that arranges at described seal container; And be configured in lining between described suction path and described leading pipe,

Periphery at described lining is formed with protuberance,

Utilize the inner peripheral surface of described protuberance and described suction path to be close to sealing.

2. hermetic type compressor as claimed in claim 1 is characterized in that:

The outer circumferential face of described protuberance is for having the spheroform surface of central point on the axle center of described lining.