CN1798925A - Position assembly of cooler - Google Patents
Position assembly of cooler Download PDFInfo
- Publication number
- CN1798925A CN1798925A CN03826342.4A CN03826342A CN1798925A CN 1798925 A CN1798925 A CN 1798925A CN 03826342 A CN03826342 A CN 03826342A CN 1798925 A CN1798925 A CN 1798925A
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- CN
- China
- Prior art keywords
- piston
- magnet sleeve
- piston assembly
- magnet
- fixed component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
- F04B35/045—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric using solenoids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/005—Pistons; Trunk pistons; Plungers obtained by assembling several pieces
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
- H02K1/30—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/16—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with polarised armatures moving in alternate directions by reversal or energisation of a single coil system
Abstract
There is provided a piston assembly configured to include: a hollow cylinder-shaped magnet sleeve having a magnet(s) bonded on external circumferential surface thereof; a hollow cylinder-shaped piston inserted into a hollow space of the magnet sleeve; and a hollow disc-shaped ring fixed to the piston by a shrink fitting process, and welded to the magnet sleeve which is made of the same material as the ring so as to obtain a configuration of the piston assembly in which the magnet sleeve and the piston are coupled to each other.
Description
Technical field
The present invention relates to a kind of piston assembly, wherein piston engages with the armature of linear motor, relate in particular to the piston assembly of the cooler that a kind of fixed component that is used to weld by soldering stainless steel ring or insertion constitutes, so that fixed component is fixed to the curved section of armature of linear motor with the convenience of the joining process of the piston that improves linear motor and armature.
Background technique
Usually, cooler be a kind of by such as the compression of working fluids such as helium, hydrogen, expanding or the like produces the device of cooling effect.Fig. 1 is the schematic representation of existing cooler.
As shown in Figure 1, cooler 1 comprises: drive part 100, be used for the linear reciprocating motion of the piston 140 that causes by electromagnetic interaction by linear motor 130, and coolant gas is compressed into the high temperature and high pressure state; Radiator portion 200 is used for being absorbed in the part heat of the coolant gas of drive part 100 compressed high temperature and high pressures, or is radiated outside; With cooling segment 300, be used for after radiator portion 200 absorbs a considerable amount of heats, coolant gas being transformed into the ultralow temperature state by coolant gas reciprocating thermodynamic cycle in heat exchanger 330.
Drive part 100 comprises the package 120 with inner space, and is fixed to framework 110, and framework 100 is surrounded with the inner/outer radiator portion 210,220 with displacer 310 with one heart; Linear motor 130, it has stator 130a and armature (magnetic sleeve pipe) 130b, and is installed in package 120 inside; Be fixed to the piston 140 of an end of the armature 130b of linear motor 130, and it makes the identical motion of armature 130b linear reciprocating motion that causes with electromagnetic interaction by linear motor 130; The cylinder 150 that is fixed on the inside center of framework 110 makes the linear reciprocating motion of piston 140 can be sent to displacer 310 equably, and this piston is inserted wherein with one heart with internal heat dissipating part 210; Sheet spring 160, it is used for fixing an end of twelve Earthly Branches bearing parallel operation connecting rod 320, so that the displacer connecting rod 320 that inserts piston 140 inside is with the displacer 310 of screwed joint is concentric with piston 140 and internal heat dissipating part 210 mutually with connecting rod 320; With spring-loaded 170, be used for by the fixing supporting slice spring 160 of fixing device.The reference number 130c of Miao Shuing not is an inner armature, an element of linear motor 130.
Radiator portion 200 comprises: be positioned at the internal heat dissipating part 210 that framework 110 is anterior and cylinder 150 and piston 140 are concentric, so that displacer 310 is with the uniform linear reciprocating motion of making of the linear reciprocating motion of piston 140, and be used for absorbing the heat of the coolant gas that is compressed into the high temperature and high pressure state from piston 140; With the outside radiator portion 220 of the outer circumferential surface that is fixed to internal heat dissipating part 210, be used for the outside of the heat radiation of the coolant gas of radiator portion 210 transmissions internally to cooler 1.
Cooling segment 300 comprises: displacement 310 and displacer connecting rod 320, it passes through from the compression of the coolant gas of piston 140 extruding and expands in the regime of elastic deformation internal linear to-and-fro motion of sheet spring 160, and this sheet spring 160 is fixed in the internal heat dissipating part 210 and supports an end of displacer connecting rod 320; Heat exchanger 330, it is installed in the displacer 310 and is stored in after piston 140 extruding and is compressed into the heat content (sensible heat) of coolant gas of the high temperature and high pressure of displacer 310, and after coolant gas expands, by temperature correction to getting back to cryogenically coolant gas, send the coolant gas of heat to high temperature; Displacer shell 340 with hollow cylinder, so that displacer 310 to be installed therein, and having a cooling side part 350 that is fixed to cylindrical body one end, the coolant gas of the heat exchanger 330 of cooling side part 350 with outside heat-shift so that by being installed in displacer 310 inside expands and becomes low temperature.
The work relationship of the cooler 1 of said structure is described below.
At first, by just as the linear motor 130 of an element of cooler 1, the electromagnetic interaction of stator 130a and armature 130b, armature 130b begins linear motion, and the piston 140 that is fixed to the end of armature 130b does the linear motion identical with armature 130b so that compresses refrigerant gas is filled in helium or hydrogen among the compression volume C.
When through radiator portion 200, the coolant gas of compression radiates cooler 1 by radiator portion 200 with a part of heat, and is being introduced in the heat exchanger 330 through after the displacer 310.
The linear interior expansion space P of resiliently deformable that moves to sheet spring 160 of displacer 310 quilts, wherein an end of displacer connecting rod 320 is fixed to the sheet spring, and owing to the pressure of the coolant gas that compresses is out of shape towards cooling segment 300.
The coolant gas of compression of introducing linearly moving displacer 310 is through being installed in the heat exchanger 330 of displacer 310 inside, and sends heat storing heat energy in heat exchanger 330, and flows to the expansion space P relative with displacer 310.By the elastic return that the pressure owing to piston 140 reduces, displacer 310 is moved to compression volume C.
Then, by flowing to the expand pressure quilt of ground coolant gas of expansion space P, displacer 310 is back and forth linear in the direction opposite with piston 140.By the strong input of the displacer connecting rod 320 that back and forth caused by displacer 310 linearities, sheet spring 160 is out of shape towards cooling segment 300 opposite sides.
Then, expansion space P is because the expansion of coolant gas is cooled and drops to very low temperature, and the cryogenic coolant gas that expands is once more through over-heat-exchanger 330, and receives the heat energy that will be introduced in compression volume C of storage in the heat exchanger 330.Because the expansion that the coolant gas that expands among the P of expansion space reduces, by the elastic return of sheet spring 160, displacer 310 is moved back to compression volume C.By repeating to compress the circulation that is introduced in the coolant gas among the compression volume C once more, finish the cooling down operation of carrying out cooler 1.
Now, will describe linear motor 130 below in detail as an element of cooler 1.
Linear motor is the motor that produces H plane in 3D shape in the common motor.By the change in the magnetic field that forms on stator on this plane, the armature of plane shape is driven in linear motion on this plane.
Fig. 2 is the figure of linear motor.
As shown in Figure 2, linear motor comprises: have the armature 13b of a plurality of magnet 139, magnet evenly at interval, sticks on the outer circumferential surface of the sleeve pipe 137 that wherein inserts piston each other; And have the stator 130a that wherein inserts armature 130b, be used to allow armature 130b by armature 130b magnet 139 and as the electromagnetic interaction linear reciprocating motion of the stator core 135 of the element of stator 130a.
Specifically, armature 130b comprises hollow cylinder-shaped sleeve 137 and magnet 139.Hollow cylinder-shaped sleeve 137 is made of stainless steel, and has the last bight portion on this cylindrical body one end, is bent-up outwardly to curved section 145 on sleeve pipe 137 and this cylindrical the other end with the right angle, is bent inwardly to sleeve pipe 137 with the right angle.Around curved section 145, provide with the isolated a plurality of screw jacks 146 of uniform distances, so that by using stove bolt 143 and nut 144 fixed pistons 140.
In addition, on the circumferential surface of sleeve pipe 137, form slit 138 in the length with proportional spacing.
As shown in Figure 2, stator 130a comprises the coil winding part 131 on the circumferential surface of the stator 130a with certain depth channel shaped; Columniform stator body 133, and have integrally formed end fitting 132 on the two ends of winding part; Stator coil 134 is wrapped on the coil winding part 131 of stator body 133; With a plurality of stator cores 135, it has the stator body by the groove that forms in the heart therein, so that coil 134 is adhesively fixed to the outer circumferential surface of the stator body 133 with winding around 134.
Fig. 3 is the engagement section figure of existing piston assembly.
As shown in Figure 3, in electromagnetic interaction by linear motor, armature 130b and piston are under the inner linear reciprocating situation of stator 130a, by using a plurality of stove bolts 143 and nut 144, the curved section 145 that forms on the end of armature 130b is fixed to the flange portion 141 of piston 140 to form piston assembly, thereby by receiving the linear reciprocating motion of armature 130b, piston 140 can be made the linear reciprocating motion identical with armature 130b.
In order to form the existing piston assembly of said structure, armature 130b and piston 140 are placed into glove box (glass box of sealing), and have on rubber gloves by using stove bolt 143 and nut 144, be engaged with each other the flange portion 141 of piston 140 and the curved section 145 of armature 130b fixing.
Yet, above-mentioned joint method is very inconvenient and expend time in, because joint method comprises the processing that a plurality of stove bolts 143 is inserted in one by one the bolt-inserting hole 142,146 that forms on the curved section 145 of the flange portion 141 of piston 140 and armature 130b respectively, and in little chest, have on rubber gloves and use nut fastening bolt 143 one by one such as glove box.
In addition, be difficult to nut 144 is fixed to the bolt 143 that inserts outer circumferential surface, because cover pipe range and dark.
Therefore, the existing joint method shortcoming of piston assembly is to have reduced operating efficiency and output, and this is because the difficulty of armature 130b and piston 140 and inconvenient screw joining process.
Summary of the invention
Therefore, the present invention relates to a kind of piston assembly, it overcomes fully because the restriction of prior art and one or more problems that shortcoming is brought.
The purpose of this invention is to provide a kind of piston assembly, replace using little bolt or screw in the existing situation by welding linear motor armature and stainless steel ring, armature compared with prior art, has been simplified the joining process of magnet sleeve and piston by constituting with the ring identical materials.
In addition, the joining process of magnet sleeve of the present invention and piston is simplified, because fixed component is inserted in the bolt-inserting hole that forms on the flange portion of piston, and soldered and be fixed to the curved section of magnet sleeve by applying the electric current fixed component.
As a result of, owing to simplified joining process, reduced and be used to time of engaging and assembling.Therefore, another object of the present invention is to save product cost and boost productivity.
Other advantages of the present invention, purpose and feature will be partly articulated in the following description, by check following content and from the present invention's ground practice school, other advantages of the present invention, purpose and feature are conspicuous for those of ordinary skills.By specification and its claims and accompanying drawing specifically noted structure, can realize and obtain objects and advantages of the present invention.
For realizing the advantage of these purposes and other, and according to the object of the invention, as this concrete enforcement and generalized description, piston assembly can comprise: hollow cylinder-shaped magnet sleeve, and it has the magnet that is combined on its outer circumferential surface; Hollow cylinder-shaped piston, it is inserted into the cavity of magnet sleeve; With open circles dish type ring, handle to be fixed to piston by shrink-fit, and be welded to, so that obtain the piston assembly structure that magnet sleeve and piston are engaged with each other by the magnet sleeve that constitutes with this ring identical materials.
In another aspect of this invention, piston assembly comprises: hollow cylinder-shaped magnet sleeve, and it has on an end of its cavity aduncate curved section and is combined in magnet on its outer circumferential surface; Hollow cylinder-shaped piston, it is provided in the cavity of magnet sleeve with being inserted into and has the fixed component patchhole that forms in its flange portion; And fixed component, by applying electric current its fusing is fixed to magnet sleeve, and as solvent that the flange portion of the curved section of magnet sleeve and piston is fixed to one another.
In another aspect of this invention, piston assembly comprises: hollow cylinder-shaped magnet sleeve, and it has the aduncate curved section on an end of its cavity and is combined in magnet on its outer circumferential surface, and this curved section has the fixed component patchhole; Hollow cylinder-shaped piston, it is provided in the cavity of magnet sleeve with being inserted into and has the fixed component patchhole that forms in its flange portion; And fixed component, by applying electric current its fusing is fixed to magnet sleeve, and as solvent that the flange portion of the curved section of magnet sleeve and piston is fixed to one another.
Should be understood that the generality of front of the present invention is described and following detailed is exemplary, and is intended to provide of the present invention further explanation as claimed in claim.
Description of drawings
Included accompanying drawing provides further explanation of the present invention, and a part combined and formation the application, and it has illustrated embodiments of the invention, and is used for explaining principle of the present invention together with specification.In the accompanying drawings:
Fig. 1 is the schematic configuration diagram of existing cooler;
Fig. 2 is the schematic configuration diagram of existing linear motor;
Fig. 3 is the engagement section figure of existing piston assembly;
Fig. 4 is the perspective exploded view according to the piston assembly of first embodiment of the invention;
Fig. 5 is the engagement section figure according to the piston assembly of first embodiment of the invention;
Fig. 6 is the perspective exploded view according to the piston assembly of second embodiment of the invention;
Fig. 7 is the engagement section figure according to the piston assembly of second embodiment of the invention; With
Fig. 8 is the engagement section figure according to the piston assembly of third embodiment of the invention.
Embodiment
To describe the preferred embodiments of the present invention in detail now, its example is illustrated in the accompanying drawing.
Fig. 4 is the perspective exploded view according to the piston assembly of first embodiment of the invention, and Fig. 5 is the engagement section figure according to the piston assembly of first embodiment of the invention.
Piston assembly 400 according to first embodiment of the invention comprises: the hollow cylinder-shaped magnet sleeve 420 so that certain thickness forms, have a plurality of magnet 410, and each magnet has predetermined size, is bonded on its outer circumferential surface; Hollow cylinder-shaped piston 430, it inserts in the cavity of magnet sleeve 420; And open circles dish type ring 440, it is made of stainless steel, and by shrink-fit handle compulsory be fixed to piston 430 so as to be positioned in magnet sleeve 420 and piston 430 between.Ring 440 is soldered to by constituting ground magnet sleeve 420 these sleeve pipe rings with circle 440 identical materials, so that by engaging magnet sleeve 420 and piston 430 acquisition piston assembly structures.The reference number 470 expression welding portions of not describing in the accompanying drawing.
Below, with the piston assembly of describing in detail according to first embodiment of the invention 400.
In the situation of the existing piston assembly shown in Fig. 2 and 3, fix engagement piston 140 and magnet sleeve 130b by using primary screw or bolt 143, this causes assembling the inconvenient and difficult of processing.
And, in the existing piston assembly and since the flange of piston and magnet sleeve by different materials constitute (that is, and the flange of piston constitute by aluminium and magnet sleeve constitute by stainless steel), two are difficult to weld together.
On the contrary, in piston assembly 400 as shown in Figure 4, removed the flange of existing piston, and be inserted between piston 430 and the magnet sleeve 420 by the shrink-fit processing by the ring 440 that stainless steel is made according to first embodiment of the invention.Then, by being that stainless steel constitutes ground magnet sleeve 420 and ring 440 welds together by identical materials, they all are that magnet sleeve 420 and piston 430 form an assembly.
Aforesaid shrink-fit is handled the piston 430 that expression will be made of stainless steel and the method for ring 440 forced engagement.In general, if the inside diameter of ring 440 is less than the outer dia 50 μ m (1 μ m:1/000mm) of piston 430, piston 430 can not be inserted in the ring 440 at room temperature, if but ring 440 is heated to 200-250 ℃, the inside diameter of ring 440 is expanded so that piston 430 can be inserted in the ring 440 through thermal expansion.Under this state,, piston 430 is separated with ring 440 to such an extent as to ring 440 closely engages with piston 430 if the temperature of ring 440 reduces.
Then, soldering is represented the contact segment by heating magnet sleeve 420 and ring 440 and is melted the method that two parts weld magnet sleeve 420 and ring 440.Welding method can be classified according to heating means, for example, and friction welding, resistance welding, plasma welding, laser bonding or the like.
The magnet sleeve 420 of piston assembly 400 comprises the hollow cylinder-shaped sleeve 460 with magnet 410.Shown in Figure 4 and 5, the sleeve pipe of being made by stainless steel 460 has hollow cylinder, and has curved section 450 on this cylindrical end, and it is outwardly-bent with the right angle.
Provide magnet sleeve 420 by a plurality of magnet 410, wherein the wall of a side closely is fixed to the curved section 450 that forms on the end of sleeve pipe 460.On the bonded outer circumferential surface that is fixed on sleeve pipe 460 of magnet 410.
Shown in Figure 4 and 5, piston 430 has hollow cylinder, made of aluminum and removed from it flange portion (with reference to as Fig. 3 141), and be longer than magnet sleeve 420.
Shown in Figure 4 and 5, ring 440 by with magnet sleeve 420 identical materials be that stainless steel is made, and have the open circles dish type of wanting between compulsory insertion magnet sleeve 420 and the piston 430.
To describe processing procedure below, wherein the element of aforesaid configuration is coupled, and finishes the piston assembly 400 according to first embodiment of the invention.
At first, by the shrink-fit processing method, ring 440 is forced to be assembled to 430, two parts of hollow cylinder-shaped piston and is made of different materials.Then, the piston 430 with the ring 440 that is fixed in it is inserted in the cavity of magnet sleeve 420.Insertion above utilizing, the wall of the opposite side of the peripheral surface of the part of ring 440 and magnet sleeve 420, promptly the opposite side of the last bight portion 450 of sleeve pipe 420 is adhering to each other.
Then, as shown in Figure 5, two parts magnet sleeve 420 being made by the same material stainless steel and ring 440 engage each other by the contact segment of welding magnet sleeve 420 and ring 440, make magnet sleeve 420 and piston 430 form an assembly.
Fig. 6 is the perspective exploded view according to the piston assembly 600 of second embodiment of the invention, and Fig. 7 is the engagement section figure according to the piston assembly 600 of second embodiment of the invention.
Piston assembly 600 according to second embodiment of the invention comprises: hollow cylinder-shaped magnet sleeve 620, it has aduncate curved section 680 on this cylindrical end, removed the bolt-inserting hole that forms in the curved section 680 from it, make that the curved section 680 of magnet sleeve 620 is fixed to the flange portion 640 of piston 630 by being fixed by the fusing that applies the fixed component 670 that electric current causes; Fixed component 670 is fixed to magnet sleeve 620 by applying its fusing of electric current, and fixes the curved section 680 of magnet sleeve 620 and the flange portion 640 of piston 630 as solvent; With piston 630, it has a plurality of fixed component patchholes 660 that form on the flange portion 640 of piston 630, wherein when fixed component 670 insertions are passed, fixed component 670 contacts with the curved section 680 of magnet sleeve 620, and be melted, and be fixed to the curved section 680 of magnet sleeve 620 so that magnet sleeve 620 and piston 630 are fixed to one another by applying electric current fixed component 670.
Fixed component 670 is by being suitable for by the electric current that applies the material of its fusing being made, and has rivet shape in overall structure.
Below, with the piston assembly of describing in detail according to second embodiment of the invention 600.
In the piston assembly according to second embodiment of the invention as shown in Figure 6, being different from shown in Figure 3 passing through uses a plurality of little fixing bolts 143 and nut 144 to fix the method for magnet sleeve 13b, the fixed component 670 that is used to weld is inserted into the fixed component patchhole 660 that forms on the flange portion 640 of piston 630, and then, if electric current is applied to fixed component 670 and magnet sleeve 620, fixed component 670 is melted on the curved section 680 of magnet sleeve 620, so that form rivet and make magnet sleeve 620 and piston 630 be engaged with each other.
The joint of fixed component 670 uses method for resistance welding, wherein electric current is applied to magnet sleeve 620 and fixed component 670, from the phase transition process of the fixed component 670 of solid-state liquefy, predetermined pressure is applied to fixed component 670 with the curved section 680 of welding magnet sleeve 620 and the flange portion 640 of piston 630.
As above-mentioned structure, forming in the piston assembly of coupled magnets sleeve pipe 620 and piston 630 by welding fixed component 670, shown in Fig. 6 and 7, sleeve pipe 690 has hollow cylinder, made by stainless steel, and have on this cylindrical end and be bent upwards part 650, it is bent-up outwardly to sleeve pipe 690 with the right angle, with the curved section 680 on the cylindrical body the other end, it is bent to sleeve pipe 690 with the right angle under inwardly.
Specifically, magnet sleeve 620 is configured to have the magnet 610 of a plurality of combinations, its each interval, and round the outer circumferential surface of sleeve pipe 690, each magnet has the curve shape of certain curvature.
Shown in Fig. 6 and 7, piston 630 made of aluminum is hollow cylinders, and be configured to have and on a cylindrical end, have certain thickness flange portion 640, so that its surface adhesively is fixed to the curved section 680 of magnet sleeve 620, and flange portion 640 also has a plurality of fixed component patchholes 660 on flange portion 640 peripheral surfaces, each hole has certain diameter, so that fixed component 670 is passed its insertion and is carried out phase transformation by the electric current that applies, thus fixed magnet sleeve pipe 620 and piston 630.
Shown in Fig. 6 and 7, fixed component 670 is made by the material that is suitable for method for resistance welding, wherein becomes liquid by the electric current fixed component 670 that applies from solid state phase changes, and with welding magnet sleeve 620 and piston 630, and it integrally becomes rivet shape.
Fig. 8 is the engagement section figure according to the piston assembly 800 of third embodiment of the invention.
With reference to figure 8, piston assembly 800 according to third embodiment of the invention comprises: hollow cylinder-shaped magnet sleeve 820, it has aduncate curved section 880 on this cylindrical body one end, with a plurality of fixed component patchhole 860b on the curved section 880, so that the fusing of the electric current that passes through to apply by fixed component 870 is fixed, the curved section 880 of magnet sleeve 820 is fixed to the flange portion 840 of piston 830; Fixed component 870, by the electric current that applies, its fusing is fixed to magnet sleeve 820, and fixes the curved section 880 of magnet sleeve 820 and the flange portion 840 of piston 830 as solvent; With piston 830, it has a plurality of fixed component patchhole 860a that form on the flange portion 840 of piston 830, when fixed component 870 is passed its insertion, fixed component 870 contacts with the fixed component patchhole 860b of the curved section 880 of magnet sleeve 820, and melt fixed component 870 so that it is fixed to magnet sleeve 820 by the electric current that is applied to fixed component 870 and magnet sleeve 820, thereby magnet sleeve 820 and piston 830 are by fixed to one another.
Fixed component 870 is made by the material that is suitable for by the electric current that applies melts, and has rivet shape in overall structure.
Replace a plurality of little fixing bolt 143 and nut 144 shown in Figure 3, in piston assembly according to third embodiment of the invention, fixed component 870 is placed on the curved section of magnet sleeve 820 and among the fixed component patchhole 860a, the 860b that form respectively on the flange portion 840 of piston 830, and quilt is passed its insertion, then, if electric current is applied to fixed component 870 so that magnet sleeve 820 and piston 830 are fixed to one another.
Below, by the element of above-mentioned configuration is fixed, describe the joining process of magnet sleeve of the present invention and piston in detail.
At first, the hollow cylinder flange portion 840 of piston 830 is adhered to the curved section 880 of magnet sleeve 820, then, fixed component 870 is placed among fixed component patchhole 860a, the 860b that forms respectively on the flange portion 840 of the curved section 880 of magnet sleeve 820 and piston 830, and wherein the end of fixed component 870 inserts and passes the curved section 880 of magnet sleeve 820.
If by (not shown)s such as resistance welding machines electric current is applied to magnet sleeve 820 and fixed component 870, then fixed component is from solid state phase changes to the liquid state.If press the fixed component 870 of phase transformation with predetermined pressure, fixed component 870 fusings are fixed between the flange portion 840 of the curved section 880 of magnet sleeve 820 and piston 830, to engage magnet sleeve 820 and piston 830 regularly, as shown in Figure 8 so.
The magnet sleeve of the linear motor of said structure is identical with the operation of aforesaid existing magnet sleeve and piston with the operation of piston, thereby omission is repeated in this description.
As mentioned above, according to the joining process of magnet sleeve of the present invention and piston than the more convenient of prior art and increased productivity greatly, this is to be inserted between magnet sleeve and the piston owing to the stainless steel ring is compulsory, and by making magnet sleeve with the ring identical materials and ring is welded together to form piston assembly of the present invention.
In addition, because fixed component is inserted in the fixed component patchhole that forms on the flange portion of piston, and electric current is applied to magnet sleeve, so that fixed component is touched the curved section that is fixed to magnet sleeve, bolt and screw have been removed from it, therefore, than prior art, joining process according to magnet sleeve of the present invention and piston becomes simpler, and because simple the processing reduced the time that is used for joining process, has reduced expense and improved productivity.
And the existing piston assembly often is the main cause that causes contaminated coolant, because the screw and the bolt that use have stayed many slits, and the frequent permeation that takes place passes this slit pollution freezing mixture after assembling.Yet, according to there being seldom or not having the slit in the piston assembly of the present invention, thereby prevented decreased performance owing to this reason.
Various modifications and changes may be made in the present invention, and this will be apparent to those skilled in the art and is.Therefore, the invention is intended to cover the modifications and variations of the present invention that fall in claims and the equivalent scope thereof.
Claims (14)
1. piston assembly, this piston assembly comprises:
Hollow cylinder-shaped magnet sleeve, it has the magnet that is combined on its outer circumferential surface;
Hollow cylinder-shaped piston, it inserts in the cavity of magnet sleeve; With
Open circles dish type ring handles to be fixed to piston by shrink-fit, and it is welded to by the magnet sleeve that constitutes with the ring identical materials, to obtain the structure of the piston assembly that magnet sleeve and piston be engaged with each other.
2. piston assembly according to claim 1 handles by shrink-fit that wherein ring is inserted between piston and the magnet sleeve.
3. piston assembly according to claim 1 is wherein by friction welding method welding magnet sleeve and ring.
4. piston assembly according to claim 1 is wherein by method for resistance welding welding magnet sleeve and ring.
5. piston assembly according to claim 1 is wherein by plasma welding method welding magnet sleeve and ring.
6. piston assembly according to claim 1 is wherein by method for laser welding welding magnet sleeve and ring.
7. piston assembly, this piston assembly comprises:
Hollow cylinder-shaped magnet sleeve, it has the aduncate curved section on an end of its cavity and is combined in magnet on its outer circumferential surface;
Hollow cylinder-shaped piston, it is provided in the cavity of magnet sleeve with being inserted into, and has the fixed component patchhole that forms in its flange portion; With
Fixed component, it is fixed to magnet sleeve by the fusing of the electric current by applying, and makes the flange portion of the curved section of magnet sleeve and piston fixed to one another as solvent.
8. piston assembly according to claim 7, wherein this fixed component is by the material of its fusing is made.
9. piston assembly according to claim 7, wherein this fixed component is integrally to become rivet shape.
10. piston assembly according to claim 7 wherein uses method for resistance welding to engage fixed component with the curved section of welding magnet sleeve and the flange portion of piston.
11. a piston assembly, this piston assembly comprises:
Hollow cylinder-shaped magnet sleeve, it has on an end of its cavity aduncate curved section and is combined in magnet on its outer circumferential surface, and this curved section has the fixed component patchhole;
Hollow cylinder-shaped piston, it is provided in the cavity of magnet sleeve with being inserted into, and has the fixed component patchhole that forms in its flange portion; With
Fixed component, it is fixed to magnet sleeve by the fusing of the electric current by applying, and makes the flange portion of the curved section of magnet sleeve and piston fixed to one another as solvent.
12. piston assembly according to claim 11, wherein this fixed component is by the material of its fusing being made applying electric current.
13. piston assembly according to claim 11, wherein this fixed component is integrally to become rivet shape.
14. piston assembly according to claim 11 wherein uses method for resistance welding to fix this fixed component with the curved section of welding magnet sleeve and the flange portion of piston.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KR2003/001496 WO2005010364A1 (en) | 2003-07-25 | 2003-07-25 | Pistion assembly of cooler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1798925A true CN1798925A (en) | 2006-07-05 |
| CN100400866C CN100400866C (en) | 2008-07-09 |
Family
ID=34101653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB038263424A Expired - Fee Related CN100400866C (en) | 2003-07-25 | 2003-07-25 | Position assembly of cooler |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20070048156A1 (en) |
| EP (1) | EP1658434A4 (en) |
| JP (1) | JP4220517B2 (en) |
| CN (1) | CN100400866C (en) |
| AU (1) | AU2003250569A1 (en) |
| WO (1) | WO2005010364A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110299233A (en) * | 2018-03-22 | 2019-10-01 | 国巨电子（中国）有限公司 | The manufacturing method of shunt resistance device |
| CN110364321B (en) * | 2018-03-26 | 2021-07-13 | 国巨电子（中国）有限公司 | Method for manufacturing shunt resistor |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7988430B2 (en) * | 2006-01-16 | 2011-08-02 | Lg Electronics Inc. | Linear compressor |
| US9856820B2 (en) | 2010-10-05 | 2018-01-02 | Mahle International Gmbh | Piston assembly |
| JP5435434B2 (en) * | 2011-06-03 | 2014-03-05 | Ｓｍｃ株式会社 | Piston assembly, fluid pressure cylinder, and method of manufacturing piston assembly |
| US8973484B2 (en) | 2011-07-01 | 2015-03-10 | Mahle Industries Inc. | Piston with cooling gallery |
| CN202918162U (en) * | 2012-10-31 | 2013-05-01 | 中山大洋电机股份有限公司 | DC brushless external rotor motor structure |
| KR102002119B1 (en) * | 2013-02-28 | 2019-07-19 | 엘지전자 주식회사 | Motor for compressor and reciprocating compressor having the same |
| CN103410723B (en) * | 2013-08-28 | 2015-11-25 | 徐州徐工施维英机械有限公司 | Concrete piston connection device, concrete conveying cylinder and concrete pump |
| JP6403071B2 (en) | 2015-06-11 | 2018-10-10 | Smc株式会社 | Fluid pressure cylinder |
| JP6292483B2 (en) | 2015-06-11 | 2018-03-14 | Smc株式会社 | Fluid pressure cylinder |
| JP6519865B2 (en) | 2015-06-11 | 2019-05-29 | Smc株式会社 | Fluid pressure cylinder |
| JP6403073B2 (en) | 2015-06-11 | 2018-10-10 | Smc株式会社 | Fluid pressure cylinder |
| JP6519864B2 (en) | 2015-06-11 | 2019-05-29 | Smc株式会社 | Fluid pressure cylinder |
| JP6403072B2 (en) * | 2015-06-11 | 2018-10-10 | Smc株式会社 | Fluid pressure cylinder |
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| GB660933A (en) * | 1949-05-06 | 1951-11-14 | Gen Presswork & Stampings Ltd | Improvements in, and to the manufacture of, sinkers for straight-bar knitting machines |
| US3488466A (en) * | 1965-10-07 | 1970-01-06 | Illinois Tool Works | Method and apparatus for welding rivet type metallic fasteners |
| US3848389A (en) * | 1969-12-29 | 1974-11-19 | Textron Inc | Bimetal rivets |
| GB1588515A (en) * | 1976-09-02 | 1981-04-23 | Ass Eng Ltd | Pistons |
| CH667832A5 (en) * | 1985-04-10 | 1988-11-15 | Metoxit Ag | METHOD FOR FORCE-CONNECTING A CYLINDRICAL CERAMIC PART TO A FLANGE MADE OF IRON MATERIAL. |
| EP0205090B1 (en) * | 1985-06-06 | 1990-09-05 | Nippondenso Co., Ltd. | Magneto rotor |
| JPH05190721A (en) * | 1992-01-08 | 1993-07-30 | Fujitsu Ltd | Semiconductor device and manufacture thereof |
| AU681825B2 (en) * | 1995-05-31 | 1997-09-04 | Sawafuji Electric Co., Ltd. | Vibrating compressor |
| JPH0910079A (en) * | 1995-06-27 | 1997-01-14 | Tanakaya:Kk | Front end assorting tray with slide motion under gravity |
| JPH09100779A (en) * | 1995-10-06 | 1997-04-15 | Zexel Corp | Compressor with electromagnetic clutch |
| EP0771966A3 (en) * | 1995-10-19 | 1998-09-16 | American Axle & Manufacturing Inc. | Dynamically balanced driveshaft assembly and method of balancing same |
| BR9900330A (en) * | 1998-01-12 | 2000-03-28 | Lg Eletronics Inc | Structure for silencer coupling for linear compressor. |
| US6273688B1 (en) * | 1998-10-13 | 2001-08-14 | Matsushita Electric Industrial Co., Ltd. | Linear compressor |
| DE60018491T2 (en) * | 1999-02-12 | 2006-04-13 | Okenseiko Co., Ltd., Inagi | Miniature motor unit |
| NZ500681A (en) * | 1999-10-21 | 2002-06-28 | Fisher & Paykel Appliances Ltd | A linear compressor with gas bearing passages between cylinder and cylinder lining |
| JP2001227465A (en) * | 2000-02-18 | 2001-08-24 | Toyota Autom Loom Works Ltd | Manufacturing method for hollow piston for compressor |
| KR100332816B1 (en) * | 2000-05-18 | 2002-04-19 | 구자홍 | Structure for supporting spring of linear compressor |
| JP3512371B2 (en) * | 2000-06-19 | 2004-03-29 | 松下電器産業株式会社 | Linear compressor |
| KR100701871B1 (en) * | 2000-11-10 | 2007-04-02 | 삼성광주전자 주식회사 | Piston-drive part of linear compressor and method of producting the same |
| KR100382930B1 (en) * | 2001-02-21 | 2003-05-09 | 엘지전자 주식회사 | Structure for reducing loss of linear compressor |
| KR100397556B1 (en) * | 2001-03-23 | 2003-09-17 | 주식회사 엘지이아이 | Reciprocating compressor |
| JP4064827B2 (en) * | 2001-05-25 | 2008-03-19 | エルジー エレクトロニクス インコーポレイティド | Reciprocating compressor |
| US6838789B2 (en) * | 2001-10-26 | 2005-01-04 | Lg Electronics Inc. | Reciprocating motor |
| KR20030041289A (en) * | 2001-11-19 | 2003-05-27 | 엘지전자 주식회사 | Apparatus for supporting piston in reciprocating compressor |
-
2003
- 2003-07-25 AU AU2003250569A patent/AU2003250569A1/en not_active Abandoned
- 2003-07-25 WO PCT/KR2003/001496 patent/WO2005010364A1/en active Application Filing
- 2003-07-25 US US10/553,056 patent/US20070048156A1/en not_active Abandoned
- 2003-07-25 CN CNB038263424A patent/CN100400866C/en not_active Expired - Fee Related
- 2003-07-25 EP EP03817664A patent/EP1658434A4/en not_active Withdrawn
- 2003-07-25 JP JP2005504594A patent/JP4220517B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110299233A (en) * | 2018-03-22 | 2019-10-01 | 国巨电子（中国）有限公司 | The manufacturing method of shunt resistance device |
| CN110299233B (en) * | 2018-03-22 | 2021-08-17 | 国巨电子（中国）有限公司 | Method for manufacturing shunt resistor |
| CN110364321B (en) * | 2018-03-26 | 2021-07-13 | 国巨电子（中国）有限公司 | Method for manufacturing shunt resistor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007518909A (en) | 2007-07-12 |
| CN100400866C (en) | 2008-07-09 |
| US20070048156A1 (en) | 2007-03-01 |
| WO2005010364A1 (en) | 2005-02-03 |
| EP1658434A4 (en) | 2010-07-21 |
| EP1658434A1 (en) | 2006-05-24 |
| JP4220517B2 (en) | 2009-02-04 |
| AU2003250569A1 (en) | 2005-02-14 |
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