CN105545746B - Compressor Manufacturing device and Compressor Manufacturing method - Google Patents

Abstract

The Compressor Manufacturing device and Compressor Manufacturing method of the present invention, improve the internal diameter roundness of the stator of compressor possessed motor.Compressor Manufacturing device (90) possesses：Compressing fixture (91) and pressing fixture (95).Compressing fixture (91) on the outside of closed container by making the power (F) of radial direction act on the outer peripheral face (83) of closed container, so as to form two convex portions along the circumferential direction arranged in the inner peripheral surface (81) of closed container, and make two convex portions into two recesses of the outer peripheral face (71) for being formed at stator (41).Fixture (95) is pressed by making the power (G) of radial direction act on the inner peripheral surface (70) of stator (41) on the inside of stator (41), so as to suppress the deformation of the inner peripheral surface (70) of the stator (41) as caused by the power (F) from compressing fixture (91).

Description

Compressor Manufacturing device and Compressor Manufacturing method

Technical field

The present invention relates to Compressor Manufacturing device and Compressor Manufacturing method.The present invention is for example related to air conditioner, refrigerator Deng the manufacture device and manufacture method of sealed electrical compressor used in refrigerating circulatory device.

Background technology

The method that stator as the existing motor by sealed electrical compressor is fixed on closed container, there are Stator with the external diameter bigger than closed container internal diameter is fixed on (referring for example to patent text by the method for closed container by hot charging Offer 1).There is also having by electric arc spot welding or laser welding, the stator with the external diameter smaller than closed container internal diameter is fixed on The method of closed container.

Stator is fixed on to the method for closed container there is also unreal applying heat dress (referring for example to patent document 2).At this In method, multiple lower opening close to each other are set in stator outer peripheral face.Opposed with above-mentioned multiple lower opening to closed container After position is locally heated, compressing fixture is radially oriented inner side and presses on the position, in closed container formation and lower opening The convex portion of engaging.By closed container thermal contraction caused by cooling, with the convex portion of closed container entering the lower opening of stator Row fastening, so as to which stator is fixed on into closed container.

Japanese Unexamined Patent Application 60-159391 publications

Japanese Unexamined Patent Publication 2007-303379 publications

It is fixed on by the stator of motor by hot charging in the method for closed container, it is difficult to which control action is in the tight of stator Gu power.The rigidity of the stator formed especially by laminated electromagnetic steel plate is smaller, and the roundness of the internal diameter of stator is deteriorated, thus Space between stator and rotor becomes uneven, in the operating of compressor, produces magnetic force imbalance sound.In addition, because of heating The difference of Temperature Distribution during closed container or the liberation because of machining deformation caused by part heating, so as to which stress concentration exists The ad-hoc location of stator core and produce iron loss so that motor efficiency reduce.

Even by electric arc spot welding or laser welding, stator is fixed on to the method for closed container, due in welding The tensile force caused by thermal contraction also acts on stator, therefore because the internal diameter roundness of stator is deteriorated, thus in compressor Magnetic force imbalance sound is produced in operation process.In addition, foreign matter can be entered in closed container in welding.

Filled in unreal applying heat and stator is fixed in the method for closed container, by the way that compressing fixture is radially oriented into inner side Closed container is pressed on, thus the convex portion of closed container enters multiple lower opening of stator outer peripheral face, but now stator inner peripheral surface has It may deform, the roundness of the internal diameter of stator is deteriorated.

The content of the invention

It is an object of the invention to the internal diameter roundness for the stator for for example improving compressor possessed motor.

The Compressor Manufacturing device of the mode of the present invention, manufactures following compressor, the compressor possesses：It is electronic Machine, it has a stator, and the stator outer peripheral face formed with two recesses along the circumferential direction arranged；Compression mechanism, its Driven by the motor；And container, it stores the stator and the compression mechanism.

The Compressor Manufacturing device is characterised by possessing：Compressing fixture, it is from the outside of the container to the appearance The power of the outer peripheral face effect radial direction of device, so as to form two convex portions along the circumferential direction arranged in the inner peripheral surface of the container, and Described two convex portions are made to enter described two recesses；And pressing fixture, it is from the inner side of the stator in the stator Side face acts on the power of radial direction, so as to suppress the deformation of the inner peripheral surface of the stator as caused by the power from the compressing fixture.

Preferably, described two recesses are formed at multiple positions of the circumferencial direction of the outer peripheral face of the stator, the pressure Clamper is to the power of the position effect radial direction with the multiple position correspondence of the outer peripheral face of the container, the pressing fixture pair The power of the position effect radial direction with the multiple position correspondence of the inner peripheral surface of the stator.

Preferably, the pressing fixture is configured to include drive mechanism and external mold, and the external mold is by the drive mechanism along footpath Contacted to driving, and with the inner peripheral surface of the stator.

Preferably, the pressing fixture is configured to the extraction rod and external mold for including wedge shape, and the external mold, which is formed, supplies the extraction The hollow bulb of the taper of rod insertion, and contacted with the inner peripheral surface of the stator.

Preferably, the compressing fixture forms described two convex portions in the state of the container is heated, described two Convex portion carries out thermal contraction after being heated by the container, so as to sandwich the part between described two recesses of the stator, The Compressor Manufacturing device is also equipped with other pressing fixtures, and other described pressing fixtures are from the outside of the container to the appearance The power of the outer peripheral face effect radial direction of device, so as to suppress the outer peripheral face of the container as caused by the thermal contraction of described two convex portions Deformation.

Preferably, it is described other pressing fixtures in the axial both ends of the container, than the compression mechanism close to institute State the power that radial direction is acted between one end of stator and the stator.

The Compressor Manufacturing method of another mode of the present invention, for manufacturing following compressor, the compression equipment It is standby：Motor, it has a stator, and the stator outer peripheral face formed with two recesses along the circumferential direction arranged；Compression Mechanism, it is driven by the motor；And container, it stores the stator and the compression mechanism, the Compressor Manufacturing Method is characterised by, acts on the outer peripheral face of the container power of radial direction from the outside of the container using compressing fixture, from And the inner peripheral surface in the container forms two convex portions along the circumferential direction arranging, and it is described two to enter described two convex portions Recess, using power of the fixture from the inner side of the stator to the inner peripheral surface effect radial direction of the stator is pressed, so as to suppress origin The deformation of the inner peripheral surface of the stator caused by power from the compressing fixture.

In the present invention, the pressing fixture of Compressor Manufacturing device makes the power of radial direction act on stator on the inside of stator Inner peripheral surface, so as to suppress the deformation of the inner peripheral surface of the stator as caused by the power from compressing fixture.Therefore in accordance with the invention it is possible to Improve the roundness of the internal diameter of stator.

Brief description of the drawings

Fig. 1 is the loop diagram of the refrigerating circulatory device of embodiment 1.

Fig. 2 is the loop diagram of the refrigerating circulatory device of embodiment 1.

Fig. 3 is the longitudinal section of the compressor of embodiment 1.

Fig. 4 is Fig. 3 A-A sectional views.

Fig. 5 is the stereogram of the stator core of the stator of the motor of embodiment 1.

Fig. 6 is the top view of the stator core of the stator of the motor of embodiment 1.

Fig. 7 is the partial perspective view of the closed container of embodiment 1.

Fig. 8 is the sectional elevation of the closed container of embodiment 1.

Fig. 9 is the top view of the divided-iron core of the stator of the motor of embodiment 1.

Figure 10 is the Compressor Manufacturing device of embodiment 1 and the top view of compressor.

Figure 11 is the Compressor Manufacturing device of embodiment 1 and the longitudinal section of compressor.

Figure 12 is the stator of the motor of embodiment 1 and the partial sectional view of closed container.

Figure 13 is the stator of the motor of embodiment 1 and the partial sectional view of closed container.

Figure 14 is the stator of the motor of embodiment 1 and the partial sectional view of closed container.

Figure 15 is Figure 14 E direction views.

Figure 16 is the top view of the stator for pressing fixture and motor of the Compressor Manufacturing device of embodiment 1.

Figure 17 is the Compressor Manufacturing device of embodiment 2 and the longitudinal section of compressor.

Figure 18 is the Compressor Manufacturing device of embodiment 3 and the longitudinal section of compressor.

Figure 19 is the Compressor Manufacturing device of embodiment 4 and the top view of compressor.

Figure 20 is the Compressor Manufacturing device of embodiment 4 and the longitudinal section of compressor.

Description of reference numerals：10 ... refrigerating circulatory devices；11a, 11b ... refrigerant loop；12 ... compressors；13 ... four-ways Valve；14 ... outdoor heat converters；15 ... expansion valves；16 ... indoor heat converters；17 ... control devices；20 ... closed containers； 21 ... suction lines；22 ... discharge pipes；23 ... suction silencers；24 ... terminals；25 ... refrigerating machine oils；26 ... container bodies；27… Container cover；30 ... compression mechanisms；31 ... cylinders；32 ... rotary-pistons；33 ... base bearings；34 ... supplementary bearings；35 ... discharges are eliminated the noise Device；36 ... blades；37 ... leaf springs；40 ... motor；41 ... stators；42 ... rotors；43 ... stator cores；44 ... coils； 45 ... wires；46 ... rotor cores；47 ... insulating elements；48 ... upper head plates；49 ... bottom plates；50 ... crank axles；51 ... is eccentric Axle portion；52 ... main shaft parts；53 ... countershaft portions；61 ... blade grooves；62 ... cylinder chamber；63 ... back pressure chambers；70 ... inner peripheral surfaces；71 ... is outer Side face；72 ... recesses；73 ... incised notch portions；74 ... divided-iron cores；75 ... teeth portion；76 ... fixed parts；77 ... protuberances；78 ... non-connect Touch region；79 ... contact areas；81 ... inner peripheral surfaces；82 ... convex portions；83 ... outer peripheral faces；84 ... processing holes；85 ... caulking parts；90… Compressor Manufacturing device；91 ... compressing fixtures；92 ... leading sections；93 ... heated perimeters；94 ... heated centers；95 ... pressing folders Tool；96 ... drive mechanisms；97 ... external molds；98 ... extract rod out；99 ... pressing fixtures.

Embodiment

Hereinafter, embodiments of the present invention are illustrated with figure.In addition in the various figures, to same or equivalent part, Mark identical reference.In the explanation of embodiment, by the explanation of same or equivalent part suitably omit or letter Change.In addition, in the explanation of embodiment, for being referred to as " on ", " under ", "left", "right", "front", "rear", " table ", " inner " Configuration, towards etc., only to facilitate explanation and described like that, the not configuration of device for limiting, utensil, part etc., court To etc..For the structure of device, utensil, part etc., its material, shape, size etc. within the scope of the invention can be suitably Changed.

Embodiment 1

Fig. 1 and Fig. 2 is the loop diagram of the refrigerating circulatory device 10 of present embodiment.Fig. 1 represents system during cooling operation Refrigerant circuit 11a.Fig. 2 represents refrigerant loop 11b during heating operation.

In the present embodiment, refrigerating circulatory device 10 is air conditioner.In addition, even if refrigerating circulatory device 10 be refrigerator, The equipment in addition to air conditioner of heat pump circulating device etc, it can also apply present embodiment.

As shown in Figure 1 and Figure 2, refrigerating circulatory device 10 possesses refrigerant loop 11a, 11b for refrigerant circulation.

It is connected with refrigerant loop 11a, 11b：Compressor 12, four-way valve 13, outdoor heat converter 14, expansion valve 15 with And indoor heat converter 16.Compressor 12 is compressed to refrigerant.Four-way valve 13 is cut in cooling operation and during heating operation Change the direction of refrigerant flowing.Outdoor heat converter 14 is the example of first heat exchanger.In cooling operation, outdoor heat exchange Device 14 acts as condenser, the refrigerant after being compressed by compressor 12 is radiated.In heating operation, outdoor heat converter 14 Acted as evaporator, heat exchange is carried out in outdoor air and using between the refrigerant after the expansion of expansion valve 15, so as to system Cryogen is heated.Expansion valve 15 is the example of expansion mechanism.Expansion valve 15 makes to utilize the refrigerant expansion after condenser radiating. Indoor heat converter 16 is the example of second heat exchanger.In heating operation, indoor heat converter 16 acts as condenser, The refrigerant after being compressed by compressor 12 is set to radiate.In cooling operation, indoor heat converter 16 acts as evaporator, in room Heat exchange is carried out between interior air and refrigerant after being expanded using expansion valve 15, so as to being heated to refrigerant.

Refrigerating circulatory device 10 is also equipped with control device 17.

Control device 17 is, for example, microcomputer.In Fig. 1 and Fig. 2, although only showing control device 17 and compression Machine 12 connects, but control device 17 is not connected only to compressor 12, and with being connected to refrigerant loop 11a, 11b each part Connection.Control device 17 monitors or controlled the state of each part.

As the refrigerant circulated in refrigerant loop 11a, 11b, can use R407C refrigerants, R410A refrigerants, The arbitrary refrigerant such as R1234yf refrigerants.Also R744 (CO can be used₂) refrigerant or R290 (propane) refrigerant.

Fig. 3 is the longitudinal section of compressor 12.Fig. 4 is Fig. 3 A-A sectional views.In addition, in Fig. 3 and Fig. 4, omit Represent the hatching of section.In addition, in Fig. 4, the inner side of closed container 20 is only shown.

In the present embodiment, compressor 12 is the Rotary Compressor of 1 cylinder.In addition, even if compressor 12 is more The Rotary Compressor or scroll compressor of cylinder, it can also apply present embodiment.

As shown in figure 3, compressor 12 possesses：Closed container 20, compression mechanism 30, motor 40 and crank axle 50.

Closed container 20 is the example of container.It is provided with closed container 20：For sucking the and of suction line 21 of refrigerant Discharge pipe 22 for discharging refrigerant.Closed container 20 is configured to include：Container body 26, one end of its short transverse are opened Mouthful；With container cover 27, it is installed on container body 26 in a manner of one end of the opening of closed vessel main body 26.

Compression mechanism 30 is accommodated in the inner side of closed container 20.Specifically, compression mechanism 30 is arranged at closed container 20 Lower inside.Compression mechanism 30 is driven by motor 40.Compression mechanism 30 is pressed the refrigerant for being drawn into suction line 21 Contracting.

Motor 40 is also accommodated in the inner side of closed container 20.Specifically, motor 40 is in the inner side of closed container 20, And it is arranged on the position passed through before the refrigerant after being compressed by compression mechanism 30 is discharged from discharge pipe 22.That is, motor 40 exists The inner side of closed container 20, and it is arranged on the top of compression mechanism 30.Motor 40 is the motor of concentratred winding.In addition, even if Motor 40 is the motor of Distributed Winding, can also apply present embodiment.

Refrigerating machine oil 25 is stored with the bottom of closed container 20, for lubricating each sliding part of compression mechanism 30.Refrigeration Machine oil 25 is drawn by being arranged at the oil pump of bottom of crank axle 50 with the rotation of crank axle 50, and to each of compression mechanism 30 Sliding part supplies.As refrigerating machine oil 25, such as use the POE (polyol ester), PVE (polyvinylether), AB as artificial oil (alkylbenzene).

Hereinafter, compression mechanism 30 is described in detail.

As shown in Figure 3 and 4, compression mechanism 30 possesses：Cylinder 31, rotary-piston 32, blade 36, base bearing 33 and Supplementary bearing 34.

During top view, the periphery of cylinder 31 is generally circular.Cylinder 31 when being internally formed top view substantially Space that is, cylinder chamber 62 for circle.The axial both ends open of cylinder 31.

It is provided with cylinder 31 and is connected with cylinder chamber 62, and the blade groove 61 radially extended.In the outer of blade groove 61 Generally circular space that is, back pressure chamber 63 when side is formed with the top view being connected with blade groove 61.

Although not shown, but in cylinder 31 suction inlet is provided with, for gas refrigerant to be inhaled from refrigerant loop 11a, 11b Enter.The outer peripheral face of suction inlet from cylinder 31 is penetrated to cylinder chamber 62.

Although not shown, but in cylinder 31 outlet is provided with, for the refrigerant after compression to be discharged from cylinder chamber 62.Row Outlet in a manner of the upper surface incised notch for making cylinder 31 to form.

Rotary-piston 32 is ring-type.Rotary-piston 32 carries out eccentric motion in cylinder chamber 62.Rotary-piston 32 slides certainly Such as it is embedded in the eccentric axial portion 51 of crank axle 50.

Blade 36 is shaped as flat approximately parallelepiped body.Blade 36 is arranged in the blade groove 61 of cylinder 31.Blade 36 By being arranged at the leaf spring 37 of back pressure chamber 63, rotary-piston 32 is pressed on all the time.Due to being high pressure in closed container 20, because If the operation start of this compressor 12, the power as caused by the difference of the pressure in the pressure in closed container 20 and cylinder chamber 62, Act on the face of the side of back pressure chamber 63 of blade 36 that is, vacuum side of blade.Therefore leaf spring 37 is mainly in the closed container 20 and vapour When compressor 12 in cylinder chamber 62 in the absence of pressure differential starts, used for the purpose of blade 36 is pressed on into rotary-piston 32.

When from side, base bearing 33 substantially fall T-shaped.Base bearing 33 is sliding freely embedded in main shaft part 52, The main shaft part 52 is the top part of the ratio eccentric axial portion 51 of crank axle 50.Base bearing 33 is by the cylinder chamber 62 of cylinder 31 and leaf The upside closing of film trap 61.

When from side, the substantially T-shaped of supplementary bearing 34.Supplementary bearing 34 is sliding freely embedded in countershaft portion 53, should Countershaft portion 53 is 51 part on the lower of ratio eccentric axial portion of crank axle 50.Supplementary bearing 34 is by the cylinder chamber 62 of cylinder 31 and blade The downside closing of groove 61.

Although not shown, but base bearing 33 possesses dump valve.Discharge silencer 35 is installed in the outside of base bearing 33.Via Dump valve discharge high temperature and high pressure gas refrigerant, temporarily enter discharge silencer 35, then from discharge silencer 35 to Space release in closed container 20.In addition, dump valve and discharge silencer 35 can also be arranged at supplementary bearing 34 or main shaft Hold the both sides of 33 and supplementary bearing 34.

Cylinder 31, base bearing 33, the material of supplementary bearing 34 are gray cast iron, sintered steel, carbon steel etc..The material of rotary-piston 32 Matter is, for example, the steel alloy containing chromium etc..The material of blade 36 is, for example, high-speed tool steel.

The side of closed container 20 is provided with suction silencer 23.Suction silencer 23 by the gas refrigerant of low pressure from Refrigerant loop 11a, 11b are sucked.In the case where liquid refrigerant returns, it is direct that suction silencer 23 suppresses liquid refrigerant Into the cylinder chamber 62 of cylinder 31.Suction silencer 23 is connected to the suction inlet of cylinder 31 via suction line 21.Suction is eliminated the noise The main body of device 23 is fixed on the side of closed container 20 by welding etc..

Hereinafter, motor 40 is described in detail.

In the present embodiment, motor 40 is brushless DC (DirectCurrent) motor.In addition, even if motor 40 be the motor in addition to brushless DC motor such as induction conductivity, can also apply present embodiment.

As shown in figure 3, motor 40 possesses：Substantially cylindric stator 41 and generally cylindrical rotor 42.

Stator 41 is abutted and fixed with the inner peripheral surface of closed container 20.Rotor 42 is set via 0.3~1mm or so space It is placed in the inner side of stator 41.

Stator 41 possesses stator core 43 and coil 44.Stator core 43 makes in the following manner：To be main using iron Composition, multiple electromagnetic steel plates that thickness is 0.1~1.5mm punching be certain shape, and be laminated vertically, by riveting, Welding etc. is fixed to make.Coil 44 is wound in stator core 43 via insulating element 47 with concentratred winding.The structure of coil 44 As at least one layer of envelope including cored wire and covering cored wire.The material of cored wire is, for example, copper.The material of envelope is, for example, AI (acyls Amine acid imide)/EI (ester acid imide).The material of insulating element 47 is, for example, PET (polyethylene terephthalate), PBT (poly- Mutual-phenenyl two acid bromide two alcohol ester), FEP (tetrafluoroethene hexafluoropropylene copolymer), PFA (tetrafluoroethene perfluoro alkyl ethylenes Base ether copolymer), PTFE (polytetrafluoroethylene (PTFE)), LCP (liquid crystal polymer), PPS (polyphenylene sulfide), phenolic resin.In coil 44 It is connected with wire 45.

Rotor 42 possesses rotor core 46 and permanent magnet (not shown).It is same with stator core 43, rotor core 46 with Following manner makes：By by using iron as main component, multiple electromagnetic steel plates that thickness is 0.1~1.5mm punching be certain Shape, and be laminated, be fixed by riveting, welding etc. to make vertically.Permanent magnet is inserted in multiple insertions Hole, multiple patchholes are formed at rotor core 46.Permanent magnet forms magnetic pole.As permanent magnet, such as use ferrite magnetic Iron, rare earth element magnet.

In order that permanent magnet is not pulled out vertically, under the axial both ends of rotor 42 that is, rotor upper end and rotor End, is respectively arranged with upper head plate 48 and bottom plate 49.Upper head plate 48 and bottom plate 49 double as spin balancer.Upper head plate 48 And bottom plate 49 is fixed on rotor core 46 by multiple fixation rivets (not shown) etc..

Although not shown, but in the vertical view of rotor core 46 axis hole is centrally formed with, the axis hole supplies the main shaft part of crank axle 50 52 hot chargings or press-in.Formed with the multiple through holes generally axially penetrated around the axis hole of rotor core 46.It is each Through hole turns into one of path of gas refrigerant of space release into closed container 20 from discharge silencer 35.

Although not shown, but in the case where motor 40 is configured to induction conductivity, the more of rotor core 46 are being formed at The conductor formed by aluminium, copper etc. is filled or plugged with individual slot.Moreover, formation end ring makes the cage line of two terminal shortcircuits of conductor Circle.

At the top of closed container 20, the terminal 24 being connected with the external power source of converter plant etc. is installed.Terminal 24 Glass terminal in this way.Terminal 24 is for example fixed on closed container 20 by welding.It is connected with terminal 24 from motor 40 Wire 45.

The discharge pipe 22 of axial both ends open is installed at the top of closed container 20.The gas discharged from compression mechanism 30 Refrigerant, the space out of closed container 20 are discharged by refrigerant loop from discharge pipe 22 to outside 11a, 11b.

Detailed content will be described later, motor 40 stator 41 outer peripheral face 71 formed with recess 72.For The stator 41 of motor 40 is fixed on to the inner side of closed container 20, and closed container 20 inner peripheral surface 81 formed with entrance The convex portion 82 of recess 72.

Hereinafter, the action to compressor 12 illustrates.

Powered from terminal 24 via wire 45 to the stator 41 of motor 40.Thus, coil 44 of the electric current in stator 41 Flowing, magnetic flux is produced from coil 44.The rotor 42 of motor 40 by from magnetic flux caused by coil 44 with from the permanent of rotor 42 The effect rotation of magnetic flux caused by magnet.By the rotation of rotor 42, the crank axle 50 for being fixed on rotor 42 is rotated.It is adjoint The rotation of crank axle 50, the rotary-piston 32 of compression mechanism 30 carry out bias in the cylinder chamber 62 of the cylinder 31 of compression mechanism 30 Rotation.Space between cylinder 31 and rotary-piston 32, two parts are divided into by the blade 36 of compression mechanism 30.With crank The rotation of axle 50, the volume change in above-mentioned two space.In the space of a side, by gradually expanding volume, thus from suction Silencer 23 sucks the gas refrigerant of low pressure.In the space of the opposing party, by the way that volume is gradually reduced, the thus gas in space Cryogen is compressed.The gas refrigerant of high pressure and high temperature is compressed to, from discharge silencer 35 into closed container 20 Discharge in space.The gas refrigerant being discharged, and then by motor 40, from the discharge pipe 22 positioned at the top of closed container 20 Discharged to outside closed container 20.The refrigerant discharged to outside closed container 20, again returned to by refrigerant loop 11a, 11b To suction silencer 23.

Although not shown, but in the case where compressor 12 is configured to shuttle-type rotary compressor, blade 36 is lived with rotation Plug 32 is integrally provided.If driving crank axle 50, receiving slit disengaging of the blade 36 along supporting mass, wherein supporting mass rotation are certainly Such as it is installed on rotary-piston 32.The rotation of the accompanying rotation piston 32 of blade 36, swing while be radially oriented advance and retreat, so as to The inside of cylinder chamber 62 is divided into discharge chambe and suction room.Supporting mass by cross section semicircular in shape shape two columnar part structures Into.Supporting mass is rotatably formed in the suction inlet and outlet of cylinder 31 embedded in circular retaining hole, the retaining hole Between portion.

Hereinafter, the stator core 43 of stator 41 to motor 40 and the structure of closed container 20 are said in order It is bright.

Fig. 5 is the stereogram of the stator core 43 of the stator 41 of motor 40.Fig. 6 is the stator of the stator 41 of motor 40 The top view of iron core 43.

As shown in figs.5 and 6, in the present embodiment, stator core 43 outer peripheral face 71 circumferencial direction it is more Individual position, formed with two recesses 72 along the circumferential direction arranged, formed with incised notch portion 73 between the two recesses 72.Separately Outside, outer peripheral face of the outer peripheral face 71 of stator core 43 equivalent to the stator 41 of motor 40.

Each recess 72 is vertically with trench-like extension.

Each incised notch portion 73 turns into the gas refrigerant of the space release into closed container 20 from discharge silencer 35 One of path.Each incised notch portion 73 also turns into the refrigerating machine oil 25 for the bottom that closed container 20 is back on motor 40 Path.

Stator core 43 is formed in a manner of along the circumferential direction linking multiple divided-iron cores 74.I.e., in the present embodiment, The stator 41 of motor 40, which has, along the circumferential direction to be linked so as to form multiple divided-iron cores 74 of stator core 43.At each point Iron core 74 is split formed with teeth portion 75.Teeth portion 75 turns into be extended from root with constant width to the inner side of radial direction, and in front end The shape of width extension.There is coil 44 in the winds portions extended with constant width of teeth portion 75.If electric current flows in coil 44 Dynamic, then being wound with the teeth portion 75 of coil 44 turns into magnetic pole.The direction of magnetic pole is determined by the sense of current flowed in coil 44.

In Fig. 5 and Fig. 6, as an example, show in 9 positions of the circumferencial direction of outer peripheral face 71 formed with cutting The stator core 43 of portion 73 and two recesses 72 is lacked, but the quantity for forming incised notch portion 73 and the position of two recesses 72 can be appropriate Change on ground.In addition, in order to which the stator 41 of motor 40 to be firmly secured to the inner side of closed container 20, preferably in outer peripheral face 71 Circumferencial direction three positions more than, form incised notch portion 73 and two recesses 72.

In addition, as an example, show to form one relative to two recesses 72 between the two recesses 72 and cut The structure in portion 73 is lacked, but the structure that two or more incised notch portion 73 is formed between the two recesses 72 can also be used.

In addition, as an example, the stator core 43 formed with 9 teeth portion 75 is shown, but the number of teeth portion 75 can Suitably change.

In addition, as an example, the stator core 43 being made up of multiple divided-iron cores 74 is shown, but one can also be used The stator core 43 of body.

In addition, as an example, show in whole teeth portion 75 or in total division iron core 74, the He of formation incised notch portion 73 The structure of two recesses 72, but incised notch portion can also be formed only in a part of teeth portion 75 or only in a part of divided-iron core 74 73 and two recesses 72.In addition, in the case of incised notch portion 73 and two recesses 72 are formed in total division iron core 74, with only existing A part of divided-iron core 74 forms incised notch portion 73 and compared with the situation of two recesses 72, can realize the shape system of divided-iron core 74 One changes the cost cutting brought.

In addition, as an example, each recess 72 is shown throughout the entirety of axial direction and with the structure of trench-like extension, but The structure of the part extension of each recess 72 only in the axial direction can be used, i.e. hole can also be formed as using each recess 72 Structure.Each recess 72 throughout axial direction entirety and with trench-like extension in the case of, be formed as hole with each recess 72 Situation is compared, and can realize the unitized cost cutting brought of shape of the electromagnetic steel plate of stacking, or can avoid electromagnetic steel The risk of the assembly defect of plate.

As shown in figs.5 and 6, recess 72 is set in a manner of two of close state are one group.Below by two The subregion of the outer peripheral face 71 for the stator core 43 that recess 72 forms with the part combination clamped by the two recesses 72, it is referred to as Fixed part 76.In the present embodiment, fixed part 76 is shown greatly is provided with 9 in the outer peripheral face 71 of stator core 43 at equal intervals. Therefore recess 72 all 18.6 in 18 inner sides for being used to for the stator 41 of motor 40 to be fixed on closed container 20 And use.

Fig. 7 is the partial perspective view of closed container 20.Fig. 8 is the sectional elevation of closed container 20.In addition, Fig. 7 is only shown An axial part for closed container 20.The axial direction of closed container 20 refers to the short transverse of closed container 20.Closed container 20 Axial direction and the stator 41 of motor 40 it is axially in parallel.In fig. 8, the hatching for representing section is omitted.

As shown in Figure 7 and Figure 8, in the present embodiment, closed container 20 inner peripheral surface 81 circumferencial direction it is more Individual position, formed with two convex portions 82 along the circumferential direction arranged.By making two convex portions 82 enter what Fig. 5 and Fig. 6 was represented Two recesses 72, and the formation for sandwiching the stator 41 of motor 40 has the part in incised notch portion 73, so as to by the stator of motor 40 41 are fixed on the inner side of closed container 20.

In the outer peripheral face 83 of closed container 20, and there is processing hole 84, the processing with each 82 corresponding position of convex portion Outer peripheral face 83 is pressed into and formed in order to which each convex portion 82 is formed at into inner peripheral surface 81 by hole 84.

In Fig. 7 and Fig. 8, as an example, show in three positions of the circumferencial direction of inner peripheral surface 81, formed with The closed container 20 of two convex portions 82, but the position formed with two convex portions 82 can suitably be changed.In addition, in order to will be electronic The stator 41 of machine 40 is firmly secured to the inner side of closed container 20, preferably three positions of the circumferencial direction of inner peripheral surface 81 with Two convex portions 82 of upper formation.

As shown in Figure 7 and Figure 8, although convex portion 82 is set in a manner of two of close state are one group, as after State like that, convex portion 82 by the stator 41 of motor 40 by the state of the inner side of closed container 20 is arranged at, by closed appearance The outer peripheral face 83 of device 20 is pressed into the inner side of closed container 20 and formed.Groups of two convex portions 82 enter groups of two recesses 72, so as to form two riveting points.Hereinafter, by two convex portions 82 for forming above-mentioned riveting point are combining, closed container 20 Inner peripheral surface 81 subregion, referred to as caulking part 85.In the present embodiment, inner peripheral surface of the caulking part 85 in closed container 20 81 and outer peripheral face 83, substantially it has been disposed at equal intervals three.Therefore convex portion 82 all six.

Fig. 9 is the top view of the divided-iron core 74 of the stator 41 of motor 40.

As described above, in the present embodiment, corresponding to the stator 41 of motor 40 and the mutual of closed container 20 Multiple positions, two convex portions 82 enter two recesses 72, and sandwiching the formation of the stator 41 of motor 40 has the part in incised notch portion 73, So as to which the stator 41 of motor 40 to be fixed on to the inner side of closed container 20.In the case of no incised notch portion 73, two are utilized Convex portion 82 fastens the part between two recesses 72, the B location that thus stress concentration represents in Fig. 9, i.e. divided-iron core 74 The end of the radially inner side of seam.Because B location was the position of the magnetic flux flows from the magnetic pole for being formed at teeth portion 75 originally, because If this stress concentration in the position, produces magnetic hysteresis loss.Magnetic hysteresis loss refers to the magnetic resistance increase due to the position of stress concentration, So as to be difficult to flow in the position magnetic flux and produce the situation of loss.Magnetic hysteresis loss is so-called iron loss, and it, which turns into, makes motor An important factor for efficiency reduces.On the other hand, in the present embodiment, due to having incised notch portion 73 between two recesses 72, Therefore the corner for the location of C, the i.e. radially inner side in incised notch portion 73 that stress concentration represents in Fig. 9 can be made.Because location of C is to come from The magnetic flux of magnetic pole positions away from from stream, so even stress concentration is in the position, it is also difficult to produce magnetic hysteresis loss.In addition, If stress concentration in location of C, can significantly reduce the stress for acting on B location.Therefore the generation of iron loss can be avoided, Suppress the reduction of motor efficiency.

In addition, as shown in figure 9, in the present embodiment, in the outer peripheral face 71 for the divided-iron core 74 for forming stator core 43 Incised notch portion 73 and two recesses 72 between region, formed with protuberance 77, the protuberance 77 is than divided-iron core 74 Other regions of outer peripheral face 71 are to the protruding outside of radial direction.Contacted by the inner peripheral surface 81 of closed container 20 with protuberance 77, from And the stator 41 of motor 40 can be more reliably fixed on to the inner side of closed container 20.And the outer peripheral face of substitution stator 41 71 entirety contact with the inner peripheral surface 81 of closed container 20, by making protuberance 77 be contacted with the inner peripheral surface 81 of closed container 20, from And improve the internal diameter roundness of stator 41.I.e., in the present embodiment, because two convex portions 82 for being formed at closed container 20 press from both sides Entering the formation of stator 41 has the part in incised notch portion 73, so even the fastening force that stator 41 is acted on from closed container 20 is relatively low, Stator 41 can be also fixed on to the inner side of closed container 20.Therefore by making the inner peripheral surface 81 and stator 41 of closed container 20 Outer peripheral face 71 contacts, and reduces its contact area, so as to take into account reliably fixed to stator 41 and improve stator 41 Internal diameter roundness.The region contacted by the inner peripheral surface 81 in the outer peripheral face 71 by stator 41 with closed container 20 is defined in prominent Go out portion 77, so as to reduce contact area.

In the present embodiment, form stator core 43 divided-iron core 74 outer peripheral face 71 incised notch portion 73 and two it is recessed Region between portion 72 is divided into：It is connected with incised notch portion 73 and does not form the non-contact area 78 of protuberance 77 and with two Any one connection of individual recess 72 and the contact area 79 formed with protuberance 77.In addition, though can also be by non-contact area 78 overturn with the position relationship of contact area 79, but in the case of being located at the side of recess 72 in non-contact area 78, convex portion 82 The root of recess 72 will not be entered.Therefore in order that contact area 79, is preferably arranged at by the fastening force increase based on convex portion 82 The side of recess 72.Non-contact area 78 and the area ratio of contact area 79 can arbitrarily be set.

In the present embodiment, the stator 41 of motor 40 is embedded in the inner side of closed container 20 by hot charging, so as to close The inner peripheral surface 81 for closing container 20 contacts with protuberance 77.Here, hot charging refers to following method：It is outer than stator 41 in heating internal diameter The small closed container 20 in footpath and in the state of making its thermal expansion, stator 41 is embedded in closed container 20, then utilizes closed container 20 thermal contractions carried out, are fixed on closed container 20 by stator 41.Only the stator 41 of motor 40 is being fixed by hot charging In the case of the inner side of closed container 20, it is possible to because the internal diameter roundness of stator core 43 is deteriorated, stator 41 and rotor Space between 42 becomes uneven, so as to cause magnetic force imbalance sound.But in the present embodiment, due in motor 40 Mutual corresponding multiple positions of stator 41 and closed container 20, two convex portions 82 enter two recesses 72 and sandwich motor The formation of 40 stator 41 has the part in incised notch portion 73, so as to reduce the fixation degree based on hot charging.That is, can be by stator The restraint location of hot charging, is only limitted to contact area 79 in the outer peripheral face 71 of iron core 43.Assuming that no non-contact area 78 is employed, But the region entirety between the incised notch portion 73 of the outer peripheral face 71 of divided-iron core 74 and two recesses 72 and closed container 20 Inner peripheral surface 81 contact structure, the knot of the inner side with the stator 41 of motor 40 to be only fixed on to closed container 20 by hot charging Structure is compared, and can also reduce the area of the restraint location of hot charging.Therefore the internal diameter roundness of stator core 43 can be improved, so as to The generation of magnetic force imbalance sound can be suppressed.In addition, the stator 41 of motor 40 embedding can also be embedded in closed container by cold 20 inner side.

In the present embodiment, two separate configurations of recess 72 are in the center of multiple 74 mutual circumferencial directions of divided-iron core The both sides of position.In addition, the center of the middle position of the circumferencial direction of divided-iron core 74 is illustrated that with chain-dotted line D in fig.9 Line.

Alternatively, it is also possible to there is no incised notch portion 73 in two recesses 72 of the stator 41 of motor 40.No matter incised notch portion is whether there is 73, by make two convex portions 82 motor 40 stator 41 and closed container 20 it is mutual corresponding to multiple positions, enter Enter two recesses 72, to sandwich the part between the two of stator 41 recesses 72, so as to which the stator 41 of motor 40 be fixed on The inner side of closed container 20.

Hereinafter, in order to manufacture compressor 12 device structure, manufacture compressor 12 method, by the device with And the effect that this method obtains illustrates.

To the explanation of structure

Figure 10 is the Compressor Manufacturing device 90 and compressor 12 for the device that is, present embodiment for manufacturing compressor 12 Top view.Figure 11 is the longitudinal section of Compressor Manufacturing device 90 and compressor 12.In addition, Figure 10 and Figure 11 will be manufactured Compressor 12 in way carries out simplifying expression.

As shown in figs.10 and 11, Compressor Manufacturing device 90 possesses：As the and of compressing fixture 91 for compressing stamping machine Pressing fixture 95 as liner fixture.

Compressing fixture 91 acts on the outer peripheral face 83 of closed container 20 the power F of radial direction from the outside of closed container 20, so as to As described later, two convex portions 82 along the circumferential direction arranging are formed in the inner peripheral surface 81 of closed container 20, and make two it is convex Portion 82 enters two recesses 72.Now, closed container 20 is in the state for not installing container cover 27, only container body 26.Press Fixture 95 is pressed to act on the inner peripheral surface 70 of stator 41 the power G of radial direction from the inner side of stator 41, so as to as described later, suppress origin The deformation of the inner peripheral surface 70 of stator 41 caused by power F from compressing fixture 91.

As described above, two recesses 72 are formed at multiple positions of the circumferencial direction of the outer peripheral face 71 of stator 41.Therefore press Clamper 91 make the power F of radial direction act on closed container 20 outer peripheral face 83 the position with the plurality of position correspondence.Pressing folder Tool 95 make radial direction power G act on stator 41 inner peripheral surface 70 the position with the plurality of position correspondence.In the present embodiment, Compressing fixture 91 make the power F of radial direction act on closed container 20 outer peripheral face 83 three positions.Pressing fixture 95 makes radial direction Power G acts at least three positions of the inner peripheral surface 70 of stator 41.

Pressing fixture 95 is configured to include drive mechanism 96 and external mold 97, and the external mold 97 is radially driven by drive mechanism 96 It is dynamic, and contacted with the inner peripheral surface 70 of stator 41.The power G of above-mentioned radial direction, it is inner peripheral surface 70 of the external mold 97 relative to stator 41 Pressing force.Got over from drive mechanism 96 and drive external mold 97 to the outside of radial direction, the pressing force is bigger, more will be outer by drive mechanism 96 Mould 97 drives to the inner side of radial direction, and the pressing force is smaller.Therefore the power G of radial direction can suitably be adjusted by drive mechanism 96 It is whole.

As drive mechanism 96, as long as can radially drive external mold 97, then arbitrary mechanism can be used.For example, The mechanism that external mold 97 is radially driven by oil pressure or air pressure can be used, embodiment 2 or 3 described later can also be used Such mechanism.

To the explanation of method

As the method for manufacture compressor 12 that is, the Compressor Manufacturing method possessed process of present embodiment, have Following process.

Store process：It is the process for the inner side that compression mechanism 30 is accommodated in closed container 20.In addition, closed container 20 is The state of container cover 27, only container body 26 is not installed.

Setting process：It is the process for the inner side that the stator 41 of motor 40 is arranged to closed container 20.

Manufacturing procedure：That multiple positions of the circumferencial direction of the inner peripheral surface 81 of closed container 20 are heated, and pair plus Multiple positions after heat are processed, so as to form the process into two convex portions 82 of two recesses 72.In the process, lead to Crossing compressing fixture 91 makes the power F of radial direction act on the outer peripheral face 83 of closed container 20 from the outside of closed container 20, so as to close The inner peripheral surface 81 for closing container 20 forms two convex portions 82 along the circumferential direction arranged, and makes above-mentioned two convex portion 82 recessed into two Portion 72.Meanwhile the inner peripheral surface 70 for by pressing fixture 95 making the power G of radial direction act on from the inner side of stator 41 stator 41, so as to Suppress the deformation of the inner peripheral surface 70 of the stator 41 as caused by the power F from compressing fixture 91.

Fixed work order：It is to make two thermal contractions of convex portion 82, the shape of the stator 41 of motor 40 is sandwiched using two convex portions 82 Into the part for having incised notch portion 73, so as to which the stator 41 of motor 40 to be fixed on to the process of the inner side of closed container 20.

Closing step：It is the process with one end of the opening of the closed vessel main body 26 of container cover 27.

Above-mentioned 5 processes are real according to storage process, setting process, manufacturing procedure, fixed work order, the order of closing step Apply.

Hereinafter, manufacturing procedure and fixed work order are illustrated.

Figure 12, Figure 13 and Figure 14 are each works for the stator 41 of motor 40 to be fixed on to the inner side of closed container 20 The partial sectional view of the stator 41 of motor 40 and closed container 20 in sequence.Figure 12, Figure 13 and Figure 14, specifically represent A part for the section of a part for the section of the stator core 43 of stator 41 and the container body 26 of closed container 20.Separately Outside, in Figure 12, Figure 13 and Figure 14, the hatching for representing section is omitted.

It is as shown in figure 12, in the outer peripheral face 83 of closed container 20, with two with each fixed part 76 in manufacturing procedure Certain scope centered on position corresponding to center between individual recess 72, from the outside of closed container 20 to closed appearance The part opposed with each fixed part 76 carries out local heating in device 20.After the thermal expansion of closed container 20 is made by heating, such as Shown in Figure 13, compressing fixture 91 is pressed as the crow flies from the outside of closed container 20 towards two recesses 72.Specifically, will have The width width more smaller than recess 72 and end face are two leading sections 92 of the compressing fixture 91 of the tabular surface of quadrilateral shape, together Two recesses 72 of Shi Chaoxiang press.Thus, as shown in figure 14, closed container 20 outer peripheral face 83 formed with compressing fixture 91 The equal processing hole 84 of the width of leading section 92.In two of the inner peripheral surface 81 of closed container 20 formed with two recesses 72 of entrance Convex portion 82.That is, the caulking part 85 with two riveting points is formed.A compressing fixture 91 each is used to three fixed parts 76. That is, three caulking parts 85 are formed with three compressing fixtures 91.Three caulking parts 85 by by three compressing fixtures 91 almost simultaneously Press on three positions of the outer peripheral face 71 of stator core 43 and formed.

In fixed work order, as shown in figure 14, the closed container 20 after thermal expansion cools down.If closed container 20 cools down, By thermal contraction, two convex portions 82 are furthered towards the center of the scope heated.Therefore by two convex portions 82, by fixed part 76 close two recess 72 along the circumferential direction fastens.Thus the stator 41 of the motor 40 including stator core 43 is fixed In closed container 20.Due to not being as the fixing means of existing hot charging, by the power of radial direction by the stator of motor 40 41 fix, but by the power of circumferencial direction, the stator 41 of motor 40 is fixed, therefore can reduce and assign stator core 43 Deformation.Further, since it is different from the existing fixing means using electric arc spot welding and laser welding, not to closed container 20 Implement perforation processing, therefore without worry foreign matter be mixed into or refrigerant leak.

Figure 15 is Figure 14 E direction views.That is, Figure 15 is the outer peripheral face of the closed container 20 from the E directions shown in Figure 14 83 figure.

As shown in figure 15, in manufacturing procedure, closed container 20 is locally heated, for example, circle heated perimeter 93 because Heat influence and soften closed container 20.If two leading sections 92 of compressing fixture 91 are pressed on into heated perimeter 93, The outer peripheral face 83 of closed container 20 forms two close processing holes 84.In the corresponding position of the inner peripheral surface 81 of closed container 20 Put, form two convex portions 82.In fixed work order, closed container 20 is cooled down, and two convex portions 82 are furthered towards heated center 94.

In manufacturing procedure, if the intrusion H (reference picture 14) of increase compressing fixture 91, the minimal wall of closed container 20 The thickness K (reference picture 14) in thick portion is gradually reduced.Here, the thickness K in minimum wall thickness (MINI W.) portion refers to be formed at closed container 20 The root of convex portion 82 is with processing the distance between hole 84.With the depth J (reference picture 14) in processing hole 84 increase, intrusion H Increase.In addition, the equal length that the depth J in processing hole 84 substantially protrudes with convex portion 82 from inner peripheral surface 81.Moreover, minimum wall thickness (MINI W.) The thickness K in portion is determined by the depth J for processing hole 84.On the basis of intrusion H is ensured, processing hole 84, minimal wall must be formed The thickness K in thick portion turn into it is smaller than the thickness of slab of closed container 20 go out substantially process hole 84 depth J value.If in order to increase intrusion H and increase processing hole 84 depth J, then the thickness K in the minimum wall thickness (MINI W.) portion of closed container 20 is thinning, so as to acted in internal pressure it is close When closing container 20, refrigerant is possible to leak from the minimum wall thickness (MINI W.) portion.Therefore it is resistance to required by it disclosure satisfy that closed container 20 The scope of Compressive Strength, determine the depth J in processing hole 84 maximum permissible value.If the thickness K in minimum wall thickness (MINI W.) portion is closed container 20 More than 0.5 times of thickness of slab, then usually can fully meet the compressive resistance of closed container 20.If for example, closed container 20 Thickness of slab is 2.6mm, then the depth J for making processing hole 84 is below 1.3mm.Therefore intrusion H is also as closed container 20 Less than 0.5 times of thickness of slab.

In the present embodiment, stator 41 outer peripheral face 71 three positions formed with fixed part 76, but preferably three Position is configured to 120 ° equidistant.As shown in figure 13, in manufacturing procedure, the leading section 92 of compressing fixture 91 is directly contacted with Closed container 20, so that closed container 20 is plastically deformed.Thus, caulking part 85 is formed at three positions.Due to a position Put to form two riveting points, therefore riveting point Volume Composition is six.1 compressing fixture 91 is used to a caulking part 85.That is, Compressing fixture 91 is total to set three.As shown in Figure 10, the power F of closed container 20 is put on from compressing fixture 91 towards closed appearance Central role of device 20.Three power F's is equal in magnitude.

Figure 16 is the pressing fixture 95 of the Compressor Manufacturing device 90 in manufacturing procedure and the stator 41 of motor 40 Top view.Figure 16 specifically represents to press the drive mechanism 96 of fixture 95 and external mold 97, the stator core 43 with stator 41.

By the rigidity of the stator 41 formed by laminated electromagnetic steel plate is relatively low, therefore radially by compressing fixture 91 Leading section 92 when pressing on the outer peripheral face 83 of closed container 20, the inner peripheral surface 70 of stator 41 is possible to deform, so that stator 41 internal diameter roundness is deteriorated.As its countermeasure, in the present embodiment, as shown in figure 16, make power G radially acting in stator 41 inner peripheral surface 70, and pressing fixture 95 is used to suppress the deformation of the inner peripheral surface 70 of stator 41.

Pressing fixture 95 has external mold 97, and the external mold 97 is acted on by radial drive of the drive mechanism 96 along stator 41 Power G.The quantity that at least a portion of the external mold 97 is divided into the teeth portion 75 with being formed at stator core 43 is identical.In order to determining The inner peripheral surface 70 of son 41 contacts, and the peripheral shape of the part after the segmentation of external mold 97, turns into identical with the inner circumferential shape of teeth portion 75 Circular shape.The part after the segmentation of the external mold 97 of fixture 95 is pressed, with the teeth portion that the power G pressing difference suitably set is opposed 75.In addition, in the part after pressing the segmentation of external mold 97 of fixture 95, can be contacted with only a part with teeth portion 75, remainder Divide and do not contacted with teeth portion 75.That is, there may also be the position as G=0.

To the explanation of effect

Hereinafter, the effect played to present embodiment illustrates.

In the present embodiment, the pressing fixture 95 of Compressor Manufacturing device 90, the power G of radial direction is made from the inner side of stator 41 The inner peripheral surface 70 of stator 41 is acted on, so as to suppress the inner peripheral surface 70 of the stator 41 as caused by the power F from compressing fixture 91 Deformation.Therefore according to present embodiment, it is possible to increase the internal diameter roundness of stator 41.

In the present embodiment, two convex portions of two recesses 72 for entering the outer peripheral face 71 for being arranged at stator 41 are formed 82, and the part that is sandwiched using two convex portions between two recesses 72 is fixed.Therefore, can not according to present embodiment Electric arc spot welding or the laser welding of generation foreign matter are needed, so as to manufacture the higher compressor 12 of the few reliability of foreign matter amount. Further, since can fully ensure the confining force of stator 41, therefore it can significantly reduce the stator 41 carried out by hot charging The contact area of outer peripheral face 71 and the inner peripheral surface 81 of closed container 20.Therefore fastening of the hot charging to stator 41 can significantly be reduced Power, so as to the higher compressor 12 of manufacturing property.

In the present embodiment, two in formation into two recesses 72 of the outer peripheral face 71 for being arranged at stator 41 are passed through During convex portion 82, from the inner side active force G of stator 41, it is deteriorated so as to reduce the internal diameter roundness of stator 41.Therefore according to this Embodiment, it is difficult to produce magnetic force imbalance sound in operation, the higher compressor 12 of reliability can be manufactured.

In the present embodiment, compressor 12 closed container 20 formed two convex portions 82, into compressor 12 Motor 40 two recesses 72 being formed of stator 41, and the formation sandwiched between above-mentioned two recess 72 has incised notch portion 73 Part, so as to which the stator 41 of motor 40 to be fixed on to the inner side of closed container 20.Due to incised notch portion 73, so as to relax into The stress concentration of an important factor for lose.In addition, in the incised notch portion 73 of the outer peripheral face 71 of stator 41 and two recesses 72 each other Between region formed with protuberance 77, the protuberance 77 than the outer peripheral face 71 of stator 41 outer pleurapophysis from other regions to radial direction Go out.Substitute the outer peripheral face 71 of stator 41 is overall to be contacted with the inner peripheral surface 81 of closed container 20, and make protuberance 77 and closed container 20 inner peripheral surface 81 contacts, so as to improve the internal diameter roundness of stator 41.Therefore according to present embodiment, motor can be suppressed The reduction of efficiency.

According to present embodiment, pressed down by the way that the generation of the iron loss of the stator 41 of motor 40 and internal diameter roundness are deteriorated Irreducible minimum is made as, so as to obtain the sealed electrical compressor that motor efficiency is high and noise is small.It can provide following Sealed electrical compressor, i.e. even for the situation of long-term use, will not also produce by the buffeting of the stator 41 of motor 40 A problem that causing noise, the increase vibrated, reliability height and the reduction iron loss as caused by the stress concentration of stator 41, electricity The sealed electrical compressor of gas good efficiency.

According to present embodiment, using close two convex portion 82 of closed container 20, in the stator 41 of motor 40 Enough clamping forces are produced between two recesses 72, so as to which the stator 41 of motor 40 is firmly fixed at into closed container 20.Following compressor 12 can be obtained, i.e. even for the long-term use of situation of sealed electrical compressor, also can be resistant to Caused common and excessive power in operating, and will not produce the noise as caused by the buffeting of the stator 41 of motor 40, Vibrate compressor 12 a problem that increase, reliability is high.Further, since it can make what the stator 41 of motor 40 was born Power reduces, and can suppress the generation of the iron loss as caused by stress concentration, therefore brings the raising of performance.

The material of closed container 20 is usually iron.Near 600 DEG C, the yield point of iron drastically declines.Herein by yield point So start the temperature drastically declined, the temperature referred to as softened.That is, the temperature of iron softening is 600 DEG C.Due to making closed container 20 The yield point of material decline, temperature when and making closed container 20 efficiently be deformed into certain shape, therefore heating is The temperature of material softening is less than fusing point.Decline yield point by heating, so that the plasticity of closed container 20 becomes Shape, suppress the resilience of the radial direction of the closed container 20 formed after convex portion 82, i.e. suppress the return of convex portion 82.In addition, can be high Imitate and reliably ensure that constant intrusion H (reference picture 14).Refer to that convex portion 82 enters the depth of recess 72 in this intrusion H Degree.As described above, the material of closed container 20 is iron, and its temperature softened is 600 DEG C.Moreover, the fusing point of iron is 1560 DEG C Left and right.Therefore, the heating-up temperature of local heating is preferably more than 600 DEG C and less than 1500 DEG C.Certainly, if material is beyond iron Material, then heating-up temperature change, be preferably its material softening temperature less than fusing point.

Heated perimeter 93 all includes the processing hole 84 at the pressing position as compressing fixture 91, so as to using above-mentioned The characteristic during material at high temperature of such closed container 20, is reliably formed convex portion 82.In addition, the press-in for forming convex portion 82 Power reduces, and is being deformed so as to reduce when compressor 12 assembles caused by stator core 43.In addition, by making closed container 20 Heated center 94 turn into the position overlapping with the center of two recesses 72, so as to be reliably formed two in closed container 20 After individual convex portion 82, using two convex portions 82 that thermal contraction is carried out towards heated center 94, two recesses 72 are sandwiched securely.

By being so reliably formed the convex portion 82 of closed container 20, and the convex portion 82 of closed container 20 sandwiches securely Between the recess 72 of the stator 41 of motor 40, carry out the stator 41 of fixed motor 40, therefore for the compressor of long-term use 12, power caused common and excessive during compressor 12 operates is can be resistant to, and the firm of buffeting can not be produced The fixation of the stator 41 of motor 40.In addition, even if in the case of fixation dual-purpose hot charging to stator 41, also can be big than ever Amplitude reduces stator 41 and the contact area of the hot charging of closed container 20.

The convex portion 82 that the stator 41 of motor 40 passes through closed container 20 sandwiches, and relative to the axial quilt of compressor 12 Supporting, relative to tangential direction, the stator 41 of motor 40 is not only by the progress that sandwiches of the convex portion 82 based on closed container 20 Supporting, and be also supported by using the rigidity of the convex portion 82 of closed container 20.With corresponding with acceleration caused by fixed part 76 Ground obtains the mode of required fixing intensity, selects solid shape.For example, by increase convex portion 82 sectional area or Person increases the number of fixed part 76, can increase fixing intensity.In addition, can be with satisfaction relative to the acceleration for producing axial direction The conveying of compressor 12, the mode of the abjection strength specification fallen etc., select the width of the recess 72 of stator 41.

In addition, in the present embodiment, in order in multiple recesses 72 of the multiple positions of stator core 43 formed with channel-shaped, Stator core 43 can be formed by being laminated same type of electromagnetic steel plate, without preparing many types, therefore can Suppress cost, also can further reduce the risk of assembly defect.

In addition, it is above-mentioned in order to ensure stator 41 and the higher fixing intensity of closed container 20 in the present embodiment Setting process in by after stator 41 and the hot charging of closed container 20, implement manufacturing procedure and fixed work order, but hot charging is not It is required.

In the case where carrying out hot charging, after by stator 41 and the hot charging of closed container 20, to the periphery of closed container 20 Face 83 carries out local heating with the 72 corresponding position of recess of stator 41.Then, by compressing fixture 91 be radially oriented inner side by The outer peripheral face 83 of closed container 20 is pressed on, the convex portion 82 engaged with recess 72 is formed in closed container 20.Moreover, pass through closed appearance Thermal contraction caused by the cooling of device 20, multiple convex portions 82 with closed container 20 will fasten between recess 72.Thus, it is possible to determine Son 41 is firmly fixed at closed container 20, and in the fixation carried out based on thermal contraction, can not produce will determine with rocking Son 41 is stably fixed to closed container 20.

In the present embodiment, due between the convex portion 82 of the closed container 20 in stator 41 and thermal contraction, not producing The intensity of the raw small degree rocked, by the hot charging of stator 41 in closed container 20, therefore with only with existing hot charging Situation about being fixed is compared, and can significantly reduce stator 41 and the contact area of the hot charging of closed container 20.Therefore can The stress for acting on stator 41 is reduced, so as to improve the performance of compressor 12.

In the present embodiment, stator core 43 turns into the part engaged the divided-iron core 74 of multiple T fonts as ring-type. In the recess 72 that the outer peripheral face 71 of stator core 43 is formed, each divided-iron core 74 is arranged at.Assuming that two close recesses 72 Formed across two divided-iron cores 74, then due to the power acted in corresponding two 82 thermal contractions of convex portion, mutually to push two The mode of individual divided-iron core 74 acts on, and it is therefore possible to the internal diameter roundness of stator core 43 is deteriorated.On the other hand, such as Fig. 9 It is shown, in a manner of the middle position of circumferencial direction of the two close recesses 72 to clamp a divided-iron core 74, it is formed at In the case of one divided-iron core 74, when corresponding two convex portions 82 have carried out thermal contraction, also can by this one The rigidity of individual divided-iron core 74, good internal diameter roundness is kept, therefore the generation of magnetic force imbalance sound can be suppressed.

In the present embodiment, as described above, the recess 72 of stator 41 is arranged to channel-shaped by substitution, such as can also set For the lower opening of quadrilateral shape.Even in this case, similarly stator 41 can be fixed on into closed container 20.For example, stator The lower opening of 41 quadrilateral shape, it can be formed by being laminated two kinds of electromagnetic steel plates.By the way that the lower opening of stator 41 is set into four sides Shape, stator 41 are not only clamped by the convex portion 82 of closed container 20, and can be by the convex portion 82 itself of closed container 20 Rigidity and be supported by, therefore stator 41 more firmly can be fixed on closed container 20.

Embodiment 2

For present embodiment, the difference of main explanation and embodiment 1.

Figure 17 is the Compressor Manufacturing device 90 of present embodiment and the longitudinal section of compressor 12.In addition, Figure 17 with Figure 11 is same, and the compressor 12 manufactured in way is carried out simplifying expression.

As shown in figure 17, the drive mechanism 96 of the pressing fixture 95 of Compressor Manufacturing device 90 can also be installed as chuck machine Structure.

Embodiment 3

For present embodiment, the difference of main explanation and embodiment 1.

Figure 18 is the Compressor Manufacturing device 90 of present embodiment and the longitudinal section of compressor 12.In addition, Figure 18 with Figure 11 is same, and the compressor 12 manufactured in way is carried out simplifying expression.

As shown in figure 18, the drive mechanism 96 of the pressing fixture 95 of Compressor Manufacturing device 90, can also be installed as wedge shape Mechanism.I.e., in the present embodiment, pressing fixture 95 is configured to the extraction rod 98 and external mold 97 for including wedge shape, the shape of external mold 97 Into the hollow bulb of the taper inserted for extracting rod 98 out, and contacted with the inner peripheral surface 70 of stator 41.By the way that rod 98 will be extracted out from outer The hollow bulb of mould 97 is extracted out downwards, and so as to which external mold 97 is radially driven using wedge-shaped effect, power G acts on the interior of stator 41 Side face 70.

Embodiment 4

For present embodiment, the difference of main explanation and embodiment 1.

Figure 19 is the Compressor Manufacturing device 90 of present embodiment and the top view of compressor 12.Figure 20 is compression mechanism Make the longitudinal section of device 90 and compressor 12.In addition, Figure 19 and Figure 20 is same with Figure 10 and Figure 11, by manufacture way Compressor 12 carry out simplifying expression.Compressing fixture 91 is omitted in Figure 19.

As shown in Figure 19 and Figure 20, Compressor Manufacturing device 90 is except possessing and the identical compressing fixture of embodiment 1 91 and pressing fixture 95 beyond, be also equipped with compress stamping machine that is, other pressing fixtures 99.

As Embodiment 1, after local heating is carried out to container body 26, pressurizeed using compressing fixture 91 When, because of the pressurization of compressing fixture 91, thermal contraction of container body 26 etc., the end of the opening of container body 26 is likely to occur change Shape.In the present embodiment, in order to reduce the deflection, utilized from the outside of closed container 20 and press fixture 99 to stator 41 Clamped between upper surface and the upper surface of closed container 20, and active force I.

That is, compressing fixture 91 forms two convex portions 82 in the state of after closed container 20 heats.Above-mentioned two convex portion 82 Thermal contraction is carried out after the heating of closed container 20, so as to sandwich the part between the two of stator 41 recesses 72, but is now made The power that closed container 20 deforms plays a role.Therefore in the present embodiment, as shown in figure 19, fixture 99 is pressed from closed container 20 outside, the power I of radial direction is set to act on the outer peripheral face 83 of closed container 20, so as to suppress to be drawn by the thermal contraction of two convex portions 82 The deformation of the outer peripheral face 83 of the closed container 20 risen.Specifically, as shown in figure 20, pressing fixture 99 acts on the power I of radial direction Than compression mechanism 30 close between one end of stator 41 and stator 41 in the axial both ends of closed container 20.It is here, closed Refer to one end of the opening of container body 26 in the axial both ends of container 20 close to one end of stator 41 than compression mechanism 30.Example Such as, as shown in figure 20, pressing fixture 99 make the power I of radial direction act on stator 41 inner peripheral surface 70 with separate at equal intervals four Position.That is, four pressing fixtures 99 clamp closed container 20 to configure at equal intervals, by these pressing fixtures 99.Thereby, it is possible to press down The deformation of closed container 20 processed.In addition, make the quantity for the position that the power I of radial direction acts on, the number of units that presses fixture 99 does not limit In four, as long as being two or more.

More than, embodiments of the present invention are illustrated, but several combinations in these embodiments can be come Implement.Either can also partly implement in these embodiments any one or it is several.For example, in these embodiments In explanation, several any combination can also be used only with any one in the part illustrated as " portion ".Separately Outside, the present invention is not limited to these embodiments, but can carry out various changes as needed.

Claims (7)

1. a kind of Compressor Manufacturing device, manufactures following compressor,

The compressor possesses：Motor, it has a stator, and the stator outer peripheral face formed with along the circumferential direction arranging Two recesses；Compression mechanism, it is driven by the motor；And container, it stores the stator and the compression mechanism,

The Compressor Manufacturing device is characterised by possessing：

Compressing fixture, it acts on the outer peripheral face of the container power of radial direction from the outside of the container, so as in the container Inner peripheral surface form two convex portions along the circumferential direction arranging, and described two convex portions is entered described two recesses；And

Press fixture, it acts on the inner peripheral surface of the stator power of radial direction from the inner side of the stator, so as to suppress by from The deformation of the inner peripheral surface of the stator caused by the power of the compressing fixture.

2. Compressor Manufacturing device according to claim 1, it is characterised in that

Described two recesses are formed at multiple positions of the circumferencial direction of the outer peripheral face of the stator,

The compressing fixture acts on the power of radial direction to the position of the outer peripheral face of the container and the multiple position correspondence,

Power of the pressing fixture to the position effect radial direction with the multiple position correspondence of the inner peripheral surface of the stator.

3. Compressor Manufacturing device according to claim 1, it is characterised in that

The pressing fixture is configured to include drive mechanism and external mold, and the external mold is radially driven by the drive mechanism, and with The inner peripheral surface contact of the stator.

4. Compressor Manufacturing device according to claim 1, it is characterised in that

The pressing fixture is configured to the extraction rod and external mold for including wedge shape, and the external mold forms the taper for the extraction rod insertion Hollow bulb, and contacted with the inner peripheral surface of the stator.

5. the Compressor Manufacturing device according to any one of Claims 1 to 4, it is characterised in that

The compressing fixture forms described two convex portions in the state of the container is heated,

Described two convex portions carry out thermal contraction after being heated by the container, so as to sandwich described two recesses of the stator Between part,

The Compressor Manufacturing device is also equipped with other pressing fixtures, and other described pressing fixtures are from the outside of the container to institute The power of the outer peripheral face effect radial direction of container is stated, so as to suppress the periphery of the container as caused by the thermal contraction of described two convex portions The deformation in face.

6. Compressor Manufacturing device according to claim 5, it is characterised in that

It is described other pressing fixtures in the axial both ends of the container, than the compression mechanism close to one end of the stator The power of radial direction is acted between the stator.

7. a kind of Compressor Manufacturing method, for manufacturing following compressor,

The compressor possesses：Motor, it has a stator, and the stator outer peripheral face formed with along the circumferential direction arranging Two recesses；Compression mechanism, it is driven by the motor；And container, it stores the stator and the compression mechanism,

The Compressor Manufacturing method is characterised by,

The power of radial direction is acted on the outer peripheral face of the container using compressing fixture from the outside of the container, so as in the container Inner peripheral surface form two convex portions along the circumferential direction arranging, and described two convex portions is entered described two recesses,

Using the power for pressing fixture from the inner side of the stator and acting on the inner peripheral surface of the stator radial direction, so as to suppress by from The deformation of the inner peripheral surface of the stator caused by the power of the compressing fixture.