CN101040120A - Compressor, refrigerating device and refrigerator - Google Patents

Compressor, refrigerating device and refrigerator Download PDF

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Publication number
CN101040120A
CN101040120A CNA2005800352809A CN200580035280A CN101040120A CN 101040120 A CN101040120 A CN 101040120A CN A2005800352809 A CNA2005800352809 A CN A2005800352809A CN 200580035280 A CN200580035280 A CN 200580035280A CN 101040120 A CN101040120 A CN 101040120A
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China
Prior art keywords
compressor
refrigerated warehouse
height
rotor
oil
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CNA2005800352809A
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Chinese (zh)
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CN101040120B (en
Inventor
喜多一朗
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Priority claimed from JP2005269622A external-priority patent/JP2006183655A/en
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
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Publication of CN101040120B publication Critical patent/CN101040120B/en
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Abstract

A compressor capable of increasing the storage efficiency of a compartment, preventing a reliability from being impaired due to the lowering of the returning property of oil, and reduced in height, a refrigerating device, and a refrigerator. Each of the compressor, the refrigerating device, and the refrigerator comprises a machine part for a hydrocarbon refrigerant, a rotor recessed part on the compression element side of the rotor, a bearing part extended into the rotor recessed part, and an electric element formed of an inverter-driven motor operated at multiple rotational speeds. Permanent magnets are used for the rotor to reduce the height of the compressor.

Description

Compressor, refrigerating plant and refrigerated warehouse
Technical field
The refrigerated warehouse that the present invention relates to compressor, uses the refrigerating plant of this compressor and use this compressor or refrigerating plant.
Background technique
Below, with reference to accompanying drawing, the refrigerated warehouse that uses above-mentioned prior art compressor is described.
Generally speaking, the refrigerated warehouse of prior art is in configuration machine room, the rear, bottom of refrigerated warehouse body, and the high pressure side of accommodating the freeze cycle of compressor etc. in this machine room constitutes thing.But, in recent years,, require to improve the taking in property of refrigerated warehouse from the viewpoint in convenience of use, saving space, in addition,, then require to improve the energy saving of refrigerated warehouse from the viewpoint of the environment of preserving our planet.In order to satisfy this requirement, the method for the upper rear portion of a kind of end face of the refrigerated warehouse body that the machine room is arranged on the usability difference or refrigerated warehouse body has been proposed.This motion for example is documented in the Japanese kokai publication hei 11-183014 communique.
Figure 33 is the structural representation that the refrigerated warehouse of the existing compressor of being put down in writing in the Japanese kokai publication hei 11-183014 communique is used in expression.
The case body 1 of refrigerated warehouse adopts and is followed successively by the such structure of cold storage room 2, vegetable compartment 3, refrigerating chamber 4 from top to bottom.Cold storage room 2 has cold storage room revolving door 5, and vegetable compartment 3 has vegetable compartment sliding door 6, and refrigerating chamber 4 has refrigerating chamber sliding door 7.
The cooling unit 10 that is made of storehouse internal fan 8 and vaporizer 9 grades according to the height that the height with the opening portion of the refrigerating chamber 4 that forms the container as undermost storeroom is roughly the same, is set at the rear portion, the back side of refrigerating chamber 4.Compressor 11 spreads all over the end face 11a of refrigerated warehouse body 1 of easy-to-use performance difference and back side 11b and is set in the recess 12 as the machine room of cold storage room 2 sides depression.
In cold storage room 2, be provided with a plurality of lattice 12b that are used for taking in food etc.Across accommodation space 12c of the superiors and the second layer accommodation space 12d that the lattice 12b by the superiors is divided, be arranged on the recess 12 of the upper rear portion of case body 1, give prominence to as protuberance 12e.
In above-mentioned this structure, along with moving of compressor 11, what the height of refrigerating chamber 4 and vegetable compartment 3 will correspondingly reduce compressor 11 takes in the volume part, therefore, can reduce the position of the division wall of dividing cold storage room 2 and vegetable compartment 3, so, make the collecting article that takes out in the vegetable compartment 3 become easy.
Summary of the invention
A kind of compressor, in seal container, take in the electronic member that constitutes by stator and rotor, the compression element by electronic member drives, the Machinery Ministry of being made up of compression element and electronic member flexibly is bearing on the seal container by support unit, its be have pressing chamber and in pressing chamber the reciprocating movement type compressor of pistons reciprocating, comprising: axle with main shaft part and core shift portion; Be fixed on the rotor on the described main shaft part; And the bearing portion of supporting spindle portion, Machinery Ministry uses hydrocarbon coolant as refrigeration agent, compare as the situation of refrigeration agent with using R134a, its inflator volume is relatively large, rotor is provided with rotor recesses in compression element one side, bearing portion extends in rotor recesses, and electronic member is the motor of the frequency conversion drive that turns round with multiple rotating speed, uses permanent magnet in the described rotor of electronic member.
Refrigerating plant comprises: heat insulating box, be provided with the compressor that is installed in the described heat insulating box and condensed device and decompressor and vaporizer in turn and form the freeze cycle and the above-mentioned compressor of a series of refrigerant flow path.
Refrigerated warehouse comprises: heat insulating box, be provided with the compressor that is installed in the described heat insulating box and condensed device and decompressor and vaporizer in turn and form the freeze cycle and the above-mentioned compressor of a series of refrigerant flow path.
Refrigerated warehouse is equipped with above-mentioned refrigerating plant.
Description of drawings
Fig. 1 is the sectional arrangement drawing of the compressor of present embodiment.
Fig. 2 is the horizontal sectional drawing of the compressor of present embodiment.
Fig. 3 is induction (induction) motor of the compressor in the present embodiment 1 and the comparison diagram of frequency conversion (inverter) motor.
Fig. 4 is the planimetric map of the salient pole concentrated winding stator of the compressor in the present embodiment 1.
Fig. 5 is the leg stereogram partly of the compressor of the refrigerated warehouse in the present embodiment 1.
Fig. 6 is the summary section of the compressor of the refrigerated warehouse in the embodiments of the present invention 2.
Fig. 7 is the summary section of the compressor of the refrigerated warehouse in the embodiments of the present invention 2.
Fig. 8 is the summary section of the compressor in the embodiments of the present invention 3.
Fig. 9 is the approximate three-dimensional map of the seal container of the compressor in the embodiments of the present invention 3.
Figure 10 is the general view of the seal container of the compressor in the embodiment of the present invention 3.
Figure 11 is the summary section of the compressor in the present embodiment 3.
Figure 12 is the summary section of the refrigerated warehouse in the embodiments of the present invention 4.
Figure 13 is the summary back elevation of the refrigerated warehouse in the same mode of execution.
Figure 14 is the summary parts unfolded drawing of the refrigerated warehouse in the same mode of execution.
Figure 15 is the sectional arrangement drawing of the compressor of the refrigerated warehouse in the same mode of execution.
Figure 16 is the horizontal sectional drawing of the compressor of the refrigerated warehouse in the same mode of execution.
Figure 17 is the induction motor of compressor of the refrigerated warehouse in the same mode of execution and the comparison diagram of adjustable frequency motor.
Figure 18 is the planimetric map of salient pole concentrated winding stator of the compressor of the refrigerated warehouse in the same mode of execution.
Figure 19 is the leg stereogram partly of the compressor of the refrigerated warehouse in the same mode of execution.
Figure 20 is the summary section of the refrigerated warehouse in the embodiments of the present invention 5.
Figure 21 is the skeleton diagram of the refrigerated warehouse in the embodiments of the present invention 6.
Figure 22 is the refrigeration agent in the same mode of execution and the solubility curve figure of refrigerator oil.
Figure 23 is the summary section of the refrigerated warehouse in the embodiments of the present invention 7.
Figure 24 is the summary back elevation of the refrigerated warehouse in the same mode of execution.
Figure 25 is the summary parts unfolded drawing of the refrigerated warehouse in the same mode of execution.
Figure 26 is the approximate three-dimensional map of the suction pipe arrangement major component of the refrigerated warehouse in the same mode of execution.
Figure 27 is the summary section of the compressor installed in the refrigerated warehouse in the same mode of execution.
Figure 28 is the summary section of the carrying state of the refrigerated warehouse in the same mode of execution.
Figure 29 is the summary section of the compressor of refrigerated warehouse when carrying in the same mode of execution.
Figure 30 is the summary section of the compressor installed in the refrigerated warehouse in the embodiments of the present invention 8.
Figure 31 is the plan view of the compressor inside of being installed in the refrigerated warehouse in the embodiments of the present invention 8.
Figure 32 is the summary section of the compressor installed in the refrigerated warehouse in the embodiments of the present invention 9.
Figure 33 is the summary section of the refrigerated warehouse of prior art.
Symbol description
1: the case body; 11,601,711,900: compressor 15a: door; 15b: storeroom; 23,200: end face; 27: recess; 28a: the back side; 29a: the superiors' accommodation space; 30c: indoor side diapire face; 30d: canopy bottom; 34b, 203: top; 101 times containers; 102: upper container; 103,403: seal container; 106: leg; 106b: stationary plane (binding face); 106c: curved part; 106d: below the elastic member configuration; 107,270: elastic member; 110: electronic member 111,240: rotor; 111a: rotor recesses; 112: stator; 113,209: compression element; 130,210: axle; 131,210b: main shaft part; 132,210a: core shift portion; 134,231: pressing chamber; 135: bearing portion; 136,232: piston; 151: permanent magnet; 161: stator core; 171: salient pole portion; 201: ventilation duct; 202: following; 210c: countershaft portion 220: main bearing; 221: supplementary bearing 280: compressor is provided with face; 281: recess; 406: leg; 410: teat (hump); 410a: leg teat; 410b: supporting teat; 411: concavity teat 413: support unit; 413a: support; 420: the attachment portion; 456: foot section; 456a: stationary plane; 609,709: vaporizer; 613: the first top parts; 615: the second top parts; 617: mechanical chamber cap; 618: freeze cycle; 619: capillary tube; 620: suction pipe; 701: heat insulating box; 727: recess; 733: suck pipe arrangement; 736: oil flows out and prevents trap; 737: pipe arrangement U curved part; 738: lower casing; 739: upper casing; 740a: shell joining portion; 740: compression case; 741: elastomer; 742: rotary driving part; 743: press part; 744: discharge pipe arrangement; 745: oil; 746: support; 751: the core shift axle; 752: axle; 753: bearing; 754: the cylinder body lid; 755: cylinder body; 756: piston; 757: pull bar (rod); 758: slide part; 800: suck pipe arrangement; 801: lower casing; 803: electronic member; 803a: rotor; 803b: stator 804: compression element; 805: support; 810: oil; 843: bearing portion; 906: suck pipe arrangement; 906a: spring; 907: discharge pipe arrangement; 908: oil; 935: cylinder body lid 936: cylinder body; 939: absorbing silencer.
Embodiment
In above-mentioned existing structure and since with as the recess 12 of machine room corresponding influence outward appearance in design at the inboard protuberance 12e that forms of refrigerated warehouse, taking in property also can descend, and therefore, in order to dwindle protuberance 12e as far as possible, must reduce recess 12.Therefore, just there is such problem, must reduces the height of the compressor 11 of decision recess 12 the biggest factor highly.
This is not limited to adopt the refrigerated warehouse of the compressor configuration of above-mentioned existing structure on top, so long as for the short transverse of the machine room of taking in compressor the refrigerated warehouse of bigger restriction is arranged, will produce same problem.
In addition, reduce the small-sized shape of compressor height, then can make the invalid volume miniaturization of refrigerated warehouse more effectively, and for the store oil amount of compressor, if make the compressor miniaturization, so, the influence that the change of store oil amount changes to fuel head becomes big.For the ease of understanding, be the quadrangular prism shape of 150mm and 100mm if compressor adopts the base, the volume of inner storage member is empty, so, because of 15 milliliters oil mass change, the fuel head of 1mm changes.So degree of miniaturization is high more, the minimizing of the fuel head that discharge caused of oil will be more obvious.
Generally speaking, the oil that compressor utilizes pressure difference and centrifugal force will be stored in inner below is supplied with slide part, and therefore, the oil mass of supplying with slide part because of the minimizing of fuel head reduces, and is guaranteeing that aspect the reliability, the wearing and tearing of slide part etc. are problems.
The present invention invents in order to solve above-mentioned original problem, and its purpose is to provide a kind of lift-launch in the efficient of taking in that can improve in the storehouse, and does not destroy compressor in the refrigerated warehouse of reliability of compressor because of the backflow decline of oil.
In order to address the above problem, compressor of the present invention, in seal container, take in the electronic member that constitutes by stator and rotor and by the compression element of electronic member drives, the Machinery Ministry of being made up of compression element and electronic member flexiblely is supported in the seal container by support unit, and be possess pressing chamber and in pressing chamber the reciprocating motion type of pistons reciprocating, this compressor comprises: the axle with main shaft part and core shift portion; Be fixed on the rotor on the main shaft part; And the bearing portion of supporting spindle portion.Machinery Ministry uses hydrocarbon coolant as refrigeration agent, compares as the situation of refrigeration agent with using R134a, and the inflator volume is relatively large.Rotor is provided with rotor recesses in compression element one side.Bearing portion extends in rotor recesses, and electronic member is the motor with the frequency conversion drive of multiple rotation speed operation, uses permanent magnet in the described rotor of electronic member.Like this, make the height of compressor just be lowered.
Therefore, not only can reduce the height of the machine room of taking in compressor, and the accommodation space in the storehouse becomes big and taking in property also can significantly improve.
In addition, like this, when realizing the miniaturization of compressor short transverse, compare with the R134a of existing common replacement freon refrigerant, the inflator volume increases, and therefore, compares from the situation of the bad R134a of the viewpoint of miniaturization with use, by the hydrocarbon coolant that uses the inflator volume to increase relatively, the refrigerating capacity of the per unit volume of hydrocarbon approximately narrows down to 1/2 with comparing originally.Therefore, guarantee that the required compressor inflator volume of equal refrigerating capacity increases to 2 times, like this, the volume flowrate of refrigeration agent increases, and the flow velocity during compressor operation in the pipe arrangement increases.
Compressor of the present invention not only can dwindle as the projection that is contained in machine room side in the storehouse of the compressor containing space in the refrigerated warehouse, can also provide the outward appearance of a kind of lift-launch in the storehouse good, the compressor in the refrigerated warehouse that taking in property also is improved.
In addition, the volume flowrate of the refrigeration agent that in pipe arrangement, flows when refrigerated warehouse of the present invention passes through to increase compressor operation, then can guarantee refrigerator oil to promote and the required enough flow velocitys that in pipe arrangement, rise, by increasing the amount of returning of returning the refrigerator oil of compressor from vaporizer, just can improve the reliability of refrigerated warehouse.
Below, enumerate feature of the present invention and effect etc.
Compressor of the present invention, in seal container, take in the electronic member that constitutes by stator and rotor and by the compression element of electronic member drives, the Machinery Ministry of being made up of compression element and electronic member flexiblely is supported in by support unit in the seal container, and it is to possess pressing chamber and the reciprocating motion type of pistons reciprocating in pressing chamber.This compressor comprises: the axle with main shaft part and core shift portion; Be fixed on the rotor on the main shaft part; And the bearing portion of axle supporting spindle portion.Machinery Ministry uses hydrocarbon coolant as refrigeration agent, compares as the situation of refrigeration agent with using R134a, and the inflator volume is relatively large.Compression element one side at rotor has rotor recesses.Bearing portion extends in described rotor recesses, and electronic member is the motor of the frequency conversion drive that turns round with multiple rotating speed, uses permanent magnet in the described rotor of electronic member.Like this, make the height of compressor be lowered.
Thus, by adopting the adjustable frequency motor that uses permanent magnet, then do not need to produce the required field current of rotation torque, thereby can make the long-pending thick attenuation of stator or rotor.Consequently, reduce the compression element of compressor and the height of electronic member, thereby can reduce the height of whole compressor, and can reduce the height of recess as the machine room that compressor is set, therefore, can dwindle the projection (protuberance) of accommodation space one side of recess in the storehouse, thereby improve outward appearance, it is big that accommodation space in the storehouse becomes, and taking in property also can significantly improve.
In addition, like this, when realizing the miniaturization of compressor short transverse, compare with the R134a of existing common replacement freon refrigerant, the inflator volume increases, and therefore, compares from the situation of the bad R134a of the viewpoint of miniaturization with use, by the hydrocarbon coolant that uses the inflator volume to increase relatively, the refrigerating capacity of the per unit volume of hydrocarbon narrows down to about 1/2 with comparing approximately originally.Therefore, the inflator volume of compressor can be increased to 2 times in order to ensure equal refrigerating capacity, like this, the volume flowrate of refrigeration agent increases, and the flow velocity during compressor operation in the pipe arrangement increases.
In addition, be used as refrigerator oil by using mineral oil, like this, compare with the combination of existing R134a and ester oil, refrigeration agent increases the solubility of refrigerator oil.
In addition, compressor of the present invention, the hydrocarbon coolant of being enclosed in the compressor is R600a, the oil of being enclosed in the compressor uses mineral oil or alkylbenzene.
Therefore, by using the mineral oil as refrigerator oil big with the R600a intermiscibility, compare with the combination of existing R134a and ester oil, refrigeration agent becomes big to the solubility of refrigerator oil.Therefore,, increase the amount of returning of together returning the refrigerator oil of compressor with refrigeration agent, can improve the reliability of refrigerated warehouse like this from vaporizer by utilizing the thermal siphon effect even when defrosting.
In addition, compressor of the present invention, the electronic member of compressor are by insulator and the salient pole of winding around is concentrated winding type (salientpole concentrated winding type) in a plurality of salient pole portion of the stator core that constitutes stator.
Thus, because coil is not across between the slit of separating, but closely concentrate in the salient pole portion that is wrapped in one by one, therefore, can not occur not only can further reducing the height of the electronic member of compressor like this because of coil swells across the coil that causes between the slit, and, can also further reduce the height of whole compressor, and the height that reduces the recess that compressor is set.Therefore, in the taking in property that improves refrigerated warehouse lower floor, can also dwindle the protrusion (protuberance) of the accommodation space of recess in the storehouse, thereby improve outward appearance, make the accommodation space in the storehouse become big, taking in property also can significantly be improved.
In addition, compressor of the present invention is that compression element has the cylinder body group that comprises pressing chamber, and the foot section of cylinder body group is installed in salient pole and concentrates on the stator of winding type.Like this, in the motor that uses the concentrated winding of salient pole, the coil end height that can make coil outstanding height from stator core significantly reduces than the coil end height of the coil of induction motor, therefore, not only can significantly reduce the length of foot section of the cylinder body group of compression element, and, can further reduce the center of gravity of compressor.
In addition, compressor of the present invention, its permanent magnet that is incorporated in the rotor are the permanent magnets of terres rares.
Like this, compare with general employed ferrite lattice, the Magnetic flux density of rare earth element magnet is approximately big 4 times, therefore, still can obtain equal above magnetic flux even reduce the height of magnet, the height of the electronic member of compressor not only can be further reduced, the total height of compressor can also be further reduced, and the height that reduces the recess that compressor is set.Therefore, in the taking in property that improves refrigerated warehouse lower floor, can also dwindle the protrusion (protuberance) of the accommodation space of recess in the storehouse, thereby improve outward appearance, it is big that the accommodation space in the storehouse becomes, and taking in property also can significantly be improved.
In addition, compressor of the present invention is, by the Machinery Ministry that electronic member and compression element constituted of compressor by support unit by yielding support in seal container, simultaneously, make the distance between the surface of contact of the foot section of the center of gravity of above-below direction of compressor and compressor and elastic member short apart between the lower end surface of the center of gravity of ratio piston compressor above-below direction and described support unit.
Like this, because the amplitude of the vibration of compressor is minimum near center of gravity, become big along with then vibrating away from center of gravity, so whole compressor is around the center of gravity vibration, therefore, littler near the following vibration of the support unit of the amplitude ratio supporting machinery portion of the vibration of the surface of contact of the leg of center of gravity and described elastic member, therefore, not only can further reduce the vibration that is communicated to refrigerated warehouse, but also a kind of high-quality compressor that does not have the noise that uncomfortable vibration and friction produced can be provided.
In addition, compressor of the present invention is, by the Machinery Ministry that electronic member and compression element constituted of compressor by support unit by yielding support in seal container, and the leg of compressor and the surface of contact of elastic member are positioned at the top of the lower end surface of support unit.
Therefore, the vibration of compressor from as the Machinery Ministry of vibration generation source after pass on via support unit the below, its direction becomes up, and passes on to elastic member by foot section.So it is complicated that the reception and registration route of vibration becomes, therefore, vibration is weakened in passing on route, and, can also increase support unit to the distance between the surface of contact of the leg of compressor and elastic member.Therefore, particularly the vibration in the zone that frequency is high is passed on and is weakened, the vibration amplitude of the surface of contact of leg and described elastic member diminishes, therefore, not only can further reduce the vibration that is communicated to refrigerated warehouse, and a kind of high-quality compressor that does not have the noise that uncomfortable vibration and friction produced can be provided.
In addition, because the amplitude of the vibration of compressor is minimum near center of gravity, along with becoming big away from the center of gravity vibration, so whole compressor is around the center of gravity vibration, therefore, littler near the following vibration of the support unit of the amplitude ratio supporting machinery portion of the vibration of the surface of contact of the leg of center of gravity and described elastic member, therefore, not only can further reduce the vibration that is communicated to refrigerated warehouse, but also a kind of high-quality compressor that does not have the noise that uncomfortable vibration and friction produced can be provided.
In addition, compressor of the present invention is, the height that makes described elastic member greater than compressor in recess the face that is provided with and the distance between the foot of compressor.
Thus, become the projection in the storehouse of refrigerated warehouse, dwindle disfeaturing property, taking in property be used for take in the height of recess of compressor after, pass in order to reduce from the vibration of compressor, and can increase the height of effective elastic member, and vibration is further weakened.Therefore, can provide a kind of high-grade compressor that does not have the noise that uncomfortable vibration and friction produced.
In addition, compressor of the present invention is, leg has with the fixing stationary plane of seal container with towards the curved part of top and the surface of contact that ends with the elastic member card.
Therefore, leg is positioned on the stationary plane of the good seal container bottom of operability such as joint, forms curved part by crooked leg simply, like this, not only can make the face of configuration elastic member become more surface of contact near center of gravity, and makes and be very easy to.
In addition, by forming curved part, then can increase leg and be fixed on the distance of stationary plane to the elastic member configuration of disposing elastic member on the seal container, because it is elongated from the distance that the vibration of stationary plane is passed on, therefore, particularly the reception and registration in the high zone of frequency is weakened, thereby can further reduce the vibration that is communicated to refrigerated warehouse.Therefore, make simply, and can reduce the vibration that is communicated to refrigerated warehouse, thereby the high-quality refrigerated warehouse of the noise that no uncomfortable vibration and friction cause can be provided with low cost.
In addition, compressor of the present invention is, the rib that the leg setting is extended across two places below stationary plane and curved part and the elastic member configuration at least.
Therefore, the rigidity of foot section strengthens, and the intrinsic value that leg itself is had increases, and foot section itself is difficult to vibration, therefore, can further reduce from the stationary plane of seal container below the elastic member configuration of foot section and the vibration reception and registration of elastic member, refrigerated warehouse body.Therefore in addition, can form rib, owing to the intensity enhancing of foot section, also can be resolved because of the impact of carrying refrigerated warehouse causes the individual problem of foot section distortion by the simple pressurization of manufacturing process.
Therefore, make simply, and can reduce the vibration that is communicated to refrigerated warehouse, thereby, can provide a kind of high-quality refrigerated warehouse that does not have uncomfortable vibration and do not have the noise that causes because of vibration with low cost.
In addition, compressor of the present invention is the compressor that carries in refrigerated warehouse, seal container possesses upper container and following container, the a plurality of legs that are fixed on down on the container are arranged in the recess by elastic member, be provided with by compressor recess is set in the face at recess, and set elastic member at recess, like this, the height that makes described elastic member is greater than the distance between the foot of the face that is provided with of described compressor and described compressor.
Like this, can increase to the height of the effective elastic member of reception and registration of refrigerated warehouse the vibration that reduces compressor.And the thickness that face is set is the factor of the protuberance size in the decision refrigeration Kuku, if but in order to obtain the cooling characteristics of refrigerated warehouse, structure as the supporting compressor must have certain thickness, by forming recess, can guarantee simultaneously that then reducing vibration by the height that increases elastic member passes on, guarantees cooling characteristics and guarantee intensity as the structure of supporting compressor by the thickness of guaranteeing the face that is provided with.Therefore, by increasing to reducing the height of the effective elastic member of vibration of passing on compressor, the noise that not only can alleviate uncomfortable vibration so greatly and produce because of vibration, simultaneously can also be by the thermal insulation of guaranteeing refrigerated warehouse retention performance and keep anti-carrying by the intensity of guaranteeing structure, thereby a kind of high-quality refrigerated warehouse can be provided.
In addition, compressor of the present invention utilizes a full week or a part that recess set on the face is set at compressor, embeds the also downside of secures resilient member.
Like this, can be under the situation of not adding unnecessary parts the position of secures resilient member, so the position of compressor can not departed from, the variation of elastic member supporting surface and the vibration that causes are passed on to change and also can be alleviated, thereby a kind of compressor that carries in the high-quality refrigerated warehouse that the noise that the uncomfortable vibration on the face is set or causes because of vibration of elastic member in refrigerated warehouse significantly alleviate can be provided.
In addition, compressor of the present invention possesses in the following container of seal container by the little recessed or protruding formed teat (bump) of the periphery of ratio of curvature seal container.Like this, if having smooth curved surface near planar surface portion, the reduced stiffness of this part so, be subjected to the influence of noise or vibration easily, even in this case, also can improve the rigidity of teat periphery by teat, and the compressor that can provide a kind of vibration and noise to be minimized.
In addition, compressor of the present invention is, near the set leg teat leg of the compressor that teat has in seal container to be installed and the attachment portion of seal container.Like this, then can improve near the rigidity the attachment portion of compressor and foot section, therefore, can alleviate from seal container and the vibration of propagating, noise by foot section.
In addition, compressor of the present invention is that teat has near supporting the teat set attachment portion of the lower end surface of support unit and seal container.Like this, then can improve near the rigidity in underpart of support, therefore, can reduce vibration, the noise propagated to seal container from compressor.
In addition, compressor of the present invention possesses in the following container of seal container by the little recessed or protruding teat that forms of the periphery of ratio of curvature seal container, near the leg of the compressor that described teat is set in the seal container to be installed and the attachment portion of seal container, by leg is set in teat, like this, can improve near the rigidity in attachment portion of compressor and foot section, therefore, even not from stationary plane towards above the situation of curved part under, if with the fixing part of leg in seal container as teat, so, then can reduce the vibration in the vibration communicating path of compressor by teat, the vibration of refrigerated warehouse be passed on thereby can reduce.
In addition, compressor of the present invention, the foot of following container to the height at the top of upper container is below the 144mm.Like this, even if in the conditional refrigerated warehouse of the short transverse of machine room, still can provide a kind of on the basis of realizing low vibration, low noise and the compressor that carries.
In addition, compressor of the present invention, the height that the supreme container top of face is set is below the 155mm, the height of elastic member is more than the 20mm.Like this, even if on the short transverse of machine room, exist in the refrigerated warehouse of restriction, still can provide a kind of on the basis of realizing low vibration, low noise and the compressor that carries, and, owing to can guarantee that elastic member has enough height, therefore, can realize the more compressor of low noise.
In addition, compressor of the present invention, described compressor is to utilize member beyond the support of the supporting inner structure part that described electronic member and compression element constituted to realize the miniaturization of short transverse, is provided with in compressor and suction pipe arrangement that described seal container is connected and is used for preventing that oil from preventing trap (trap) from the oil outflow of the inner outflow of compressor.
Therefore, not only client but also carrying or move refrigerated warehouse is set from the logistics progress that is dispensed into StoreFront, and refrigerated warehouse is put upside down when carrying, compressor is also laterally toppled over, and oil flows into the opening end at the suction pipe arrangement of compressor inside opening, in this case, be provided with oil and flow out and prevent trap owing to suck pipe arrangement, therefore, can not flow into the inside that sucks pipe arrangement, and, oil can not take place from sucking the phenomenon that pipe arrangement flows out to the vaporizer adverse current.
Like this,, flow out by oil and to prevent trap, can prevent that then oil is trapped in suction pipe arrangement and the vaporizer even after carrying, prop up refrigerated warehouse and reset.
Therefore, flow out the outside of compressor, therefore, can guarantee the oil mass in the compressor, thereby prevent that fuel head from significantly reducing, can also guarantee fuel feeding, further reduce the danger of compressor injury etc. to the compressor slide part owing to can prevent oil.
In addition, compressor of the present invention, the compressor of inner low pressure type comprises two ones upper casing and lower casing up and down, after inner structure part is taken in inside, upper casing and lower casing are bonded together at the shell joining portion with being sealed, be arranged on suction pipe arrangement in the lower casing and lower casing internal face substantially at grade, and at the compressor inside opening.
Like this,, after carrying, prop up refrigerated warehouse and reset, can prevent that also oil is trapped in outside the compressor even have when compressor tilts more oil easily from the compressor that sucks this suction pipe arrangement that pipe arrangement flows out.
In addition, compressor of the present invention, refrigeration agent is enclosed in the freeze cycle, and described refrigeration agent is enclosed the light specific gravity of the oil in the compressor than quilt under the state of liquefaction.
Like this,, after carrying, prop up and be provided with refrigerated warehouse, can prevent also that oil is trapped in outside the compressor even more oil is easily from the compressor of the combination that sucks this refrigeration agent that pipe arrangement flows out and oil when having used compressor to tilt.
In addition, compressor of the present invention, the refrigeration agent of being enclosed in the compressor is R600a, the oil of being enclosed in the compressor uses mineral oil.
Like this,, after carrying, prop up and be provided with refrigerated warehouse, can prevent that also oil is trapped in outside the compressor even more oil is easily from the compressor of the combination that sucks this refrigeration agent that pipe arrangement flows out and oil when using compressor to tilt.
In addition, because the unit time volume flowrate of refrigeration agent increases, therefore, flow velocity in the pipe arrangement of refrigeration agent by in the refrigeration system time increases and is about 2 times of R134a, about 20 times of carbon dioxide, therefore, the oil that is trapped in the refrigeration system can return compressor inside rapidly, thereby can prevent the low on fuel in the shell.
Refrigerating plant of the present invention has heat insulating box, be equipped with the compressor be installed in the heat insulating box and condensed device and decompressor and vaporizer in turn and form the freeze cycle of a series of refrigerant flow path, and carries above-mentioned arbitrary compressor.
Like this, owing to be equipped with a kind of on the basis of the miniaturization that has realized short transverse, guarantee the reliability of compressor, and reduce the compressor of noise, vibration, therefore, on the basis of the machine room height that can significantly reduce refrigerating plant, can also provide a kind of noise, vibration is low and reliability is high refrigerating plant.
In addition, refrigerating plant of the present invention has heat insulating box, be equipped with the compressor be installed in the heat insulating box and condensed device and decompressor and vaporizer in turn and form the freeze cycle of a series of refrigerant flow path, and carries above-mentioned arbitrary compressor or refrigerating plant.
Like this, owing to carry after the miniaturization that has realized short transverse, guarantee the reliability of compressor, and reduce the compressor of noise, vibration, therefore, on the basis of the machine room height that can significantly reduce refrigerating plant, can also provide a kind of noise, vibration is low and reliability is high refrigerating plant.
Below, with reference to accompanying drawing, the mode of execution of compressor of the present invention is described.In addition, the present invention is not limited to present embodiment.
(mode of execution 1)
Fig. 1 is the sectional arrangement drawing of the compressor of present embodiment 1, Fig. 2 is the horizontal sectional drawing of the compressor of present embodiment 1, Fig. 3 is the induction motor of compressor of the refrigerated warehouse in the present embodiment 1 and the comparison diagram of adjustable frequency motor, and Fig. 4 is the planimetric map of salient pole concentrated winding stator of the compressor of the refrigerated warehouse in the same mode of execution.Fig. 5 is the leg stereogram partly of the compressor of the refrigerated warehouse in the same mode of execution.
In the drawings, making by drawing and forming thickness is that the following container 101 of the mortar shape that forms of the rolled plate of 2mm to 4mm and the upper container 102 of the shape of falling the mortar are bonded with each other, and welding joint partly full week and form seal container 103.The inside that makes refrigeration agent 104 that the R600a by hydrocarbon constitutes and be stored in seal container 103 at the refrigerator oil 105 that the big mineral oil of bottom and R600a intermiscibility constitutes.Downside at seal container 103 is fixed with leg 106, by the elastic member 107 that ends with leg 106 card, and the position that is fixed in the pin 108 of the hole 109 movable embeddings (trip embedding) by making elastic member 107 to the recess 27 that is arranged at refrigerated warehouse.
In addition, leg 106 in seal container 103 by as the support 113a of support unit and spring 114 and by yielding support, simultaneously, between the surface of contact 106a of the center of gravity A of compressor 11 above-below directions and the leg 106 of compressor and elastic member 107 apart from B, distance C between the lower end surface 113b of center of gravity A of ratio piston compressor 11 above-below directions (Fig. 1 " A ") and support unit is short.
As described in present embodiment, structure above the surface of contact 106a of the leg 106 of the center of gravity A of compressor short transverse ratio piston compressor and elastic member 107 is arranged in, the lower end surface 113b of the support unit of the surface of contact 106a ratio piston compressor inside of the leg 106 of compressor and elastic member 107 is positioned at the top.
In addition, the aspect ratio compressor of elastic member 107 in recess the face that is provided with D and the lowest end E of compressor between big apart from F.
Leg 106 have the stationary plane 106b that is fixed on the seal container and the curved part 106c that erects up and the elastic member configuration that ends with the elastic member card below 106d, at least two places below stationary plane 106b and curved part 106c and elastic member configuration among the 106d are provided with the rib 106e across extension.
Electronic member 110 concentrates the stator 112 of winding to form by rotor 111 and salient pole.Compression element 113 is constructed above electronic member 110, and it drives by electronic member 110.
Electronic member 110 and compression element 113 all are incorporated in the seal container 103, and in the lower end of the bottom of following container 101 and stator 112 by as the support 113a of support unit and spring 114 and by yielding support.
The support 113a and the spring 114 that are assemblied in these stator 112 lower ends are support units of yielding support Machinery Ministry.
The terminal 115 of the part of container 101 is used for the electric (not shown) of inside and outside contact at seal container 103 under constituting, by going between 116 to electronic member 110 power supplies.In addition, in seal container 103, be provided be used for the discharge tube 120 that is connected with the discharge pipe arrangement 31 of refrigeration system be used for and suck the suction pipe 121 that pipe arrangement 33 is connected and in refrigeration system, enclose refrigeration agent 104 backs, be used for making system to become the sealed pipe 122 of confined space.
By the running of compression element 113, refrigeration agent 104 is inhaled into the inside of seal container 103 by sucking pipe arrangement 33 and suction pipe 121, and discharges to discharging pipe arrangement 31 from discharge tube 120.
This discharge pipe arrangement 31 has flexibly with the discharge tube 120 of compression element 113 and seal container and is connected.
Below, the details of compression element 113 is described.
Axle 130 comprises: by be pressed into, the main shaft part 131 that shrunk fit is fixed with rotor 111 and the core shift portion 132 that forms with respect to main shaft part 131 core shifts.Cylinder body group 133 has roughly cylindrical circular pressing chamber 134, and has the bearing portion 135 of main shaft part 131 of supporting axle 130 of being used for, and is formed at the top of electronic member 110.
At this moment, be formed with rotor recesses 111a in compression element one side of rotor 111, bearing portion 135 extends in this rotor recesses 111a.
Piston 136, and is connect by the coupling gear 137 core shift portion 132 with axle 130 to pressing chamber 134 by movable embedding (trip embedding), rotatablely moving of axle 130 is converted to the to-and-fro motion of piston 136.Space by piston 136 expansions, compresses chamber 134, suck refrigeration agent 104 in the seal containers 103 from the suction port 141 of absorbing silencer (muffle) 140, by being arranged on the valve (not shown) that cylinder body covers 142 inside, and by formed exhaust silencer 143 and discharge tube 144 in cylinder body group 133, discharge tube 120, and be expelled in the discharge pipe arrangement 31 of outside of seal container 103.
Discharge tube 144 as high press fit pipe is that internal diameter is the steel pipe of 1.5mm to 3.0mm, thereby it uses L word or the bending of U word to have ductility, and the discharge tube 120 of compression element 113 and seal container 103 flexiblely is connected.
Below, the details of electronic member 110 is described.
Rotor 111 is by the main body portion 150 of the silicon steel plate that is laminated with 0.2mm to 0.5mm and take in the hole 152 of permanent magnet set in the main body portion 150 151 and after inserting permanent magnet 151 and the end plate 153 of blocking hole 152 is formed, and is fixed into an integral body by rivet pin 154.
Stator 112 is made up of by the stator core 161 of the silicon steel plate of 0.2mm to 0.5mm with as the coil 162 of the copper cash of the insulating covering that is surrounded by 0.3mm to 1mm outward lamination.It is circular that stator core 161 is that salient pole portion 171 interval according to the rules forms, and the salient pole that coil 162 is wound onto in the salient pole portion 171 is concentrated winding type.Link into an integrated entity by contact line 172 between each coil.
Below, comparative descriptions adjustable frequency motor and induction motor.
For the ease of understanding explanation, in Fig. 3, be that the boundary compares with the center line, the cross section of induction motor is represented in the left side, the cross section of adjustable frequency motor is represented on the right side.Each motor is used in the compressor with identical substantially maximum refrigerating capacity.The height L1 of the stator core 161 of the stator 112 of adjustable frequency motor is more much lower than the height H 1 of the stator core 181 of the stator 180 of induction motor.And the height L4 of the rotor 111 of the adjustable frequency motor also height H 4 than the rotor 182 of induction motor is low.In addition, using salient pole to concentrate in the adjustable frequency motor of winding, more much lower than coil end height H2, the H3 of the coil 183 of induction motor as coil 162 from coil end height L2, the L3 of the outstanding height of stator core 161.In addition, by using uncommon great soil group magnet, and can make the height L4 of the height L1 of stator core 161 of height L5, adjustable frequency motor of permanent magnet 151 and rotor 111 lower as permanent magnet 151.
Below, the operation of compressor 11 is described.
If compressor 11 is energized, so, the stator 112 that electricity is supplied to electronic member 110 by terminal 115, lead-in wire 116, by the rotating magnetic field that stator 112 is produced, rotor 111 begins rotation.Because of the rotation of rotor 111, the core shift portion 132 of the axle 130 that connects with rotor carries out and the rotatablely moving of the axle center core shift of axle 130.The core shift motion quilt and the coupling gear 137 that core shift portion 132 connects of axle 130 are transformed into to-and-fro motion, and become the to-and-fro motion of the piston 136 that connects with the other end of coupling gear 137, in the volume of piston 136 in changing pressing chamber 134, carry out the suction compression of refrigeration agent 104.
The volume that piston 136 sucks, discharges in pressing chamber 134 interior reciprocal processes is called the inflator volume, because of the big or small cooling capacity of inflator volume will change.
Carry out the compressor 11 that is supported by elastic member 107 and leg 106 of aforesaid operations, be installed in as in the machine room (not shown) of the formed recess in the back side of refrigerated warehouse, concave depth (highly) is decided by the height of compressor 11.
The opposing party and, in the storehouse of refrigerated warehouse, the protuberance corresponding with recess is outstanding.If protuberance greatly then taking in property is poor, therefore, need a kind of technology that reduce compressor 11 height.
Below, the height of compressor 11 is carried out specific description.The following container 101 of compressor 11, upper container 102 use the steel plate of 2mm to 4mm, about altogether 7mm.Following container 101 and upper container 102 are respectively the shapes that has curvature at above-below direction.This is in order to make the living space of placing refrigerated warehouse more comfortable, and the needs that reduce noise design, and have curvature by making container, make the rigidity of container, intrinsic value be improved, and the noise that resonance causes is controlled.The radius of curvature approximately is R100mm to 150mm, in order to obtain such curvature, must be about 13mm intensity in a side.
Secondly, refrigerator oil 105 is stored in the bottom of seal container 103.In order to guarantee compressor 11 running under various conditions, refrigerator oil 105 is enclosed about 200 milliliters (ml) to 250 milliliters (ml), in height accounts for 20mm greatly.And if refrigerator oil 105 contacts with electronic member 110, so just becoming unusual input increases, and therefore, needs about 9mm as the space length that can not contact.
For the compressor 11 that is carried in the home-use refrigerated warehouse, in miniaturization be with the noise suppression of compressor 11 less be even more important, therefore, the rigidity that improves seal container 103 is very important, from improving the viewpoint of reliability, guarantee that refrigerator oil 105 is also very important.From these aspects, add up to thickness of slab 7mm, curvature 13mm, degree and oil 20mm, guarantee to need 49mm altogether by the 9mm that space length is required, on feature, dwindle that this is off size suitable.
Therefore, the height of compressor 11 is determined by electronic member 110 and compression element 113 substantially.Compression element 113 is by dwindling the inflator volume, and can dwindle piston 136 or coupling gear 137, axle 130, bearing portion 135, for example, if use existing general R134a, compare with the situation of using R600a so, obtain the required inflator volume of identical refrigerating capacity and can narrow down to 1/2.
Like this, from the viewpoint of miniaturization, the situation during with the disadvantageous R134a of use is compared, and in the compressor that the R600a that increases the inflator volume relatively uses, the inflator volume of compressor can be increased to about 2 times in order to ensure equal refrigerating capacity.Like this, because the volume flowrate of refrigeration agent increases, flow velocity during compressor operation in the pipe arrangement increases, therefore, the volume flowrate of the refrigeration agent that in pipe arrangement, flows during by the increase compressor operation, not only can guarantee the refrigerator oil required sufficient flow velocity of rising in pipe arrangement that raises up like this, and because of increasing the reliability that the capacity of reflux of returning the refrigerator oil of compressor from vaporizer can improve compressor.
In addition, by using mineral oil as refrigerator oil, like this, compare with the R134a of prior art and the combination of ester oil, refrigeration agent increases the solubility of refrigerator oil.
Thus, by use with the big mineral oil of R600a refrigeration agent intermiscibility as refrigerator oil, compare with the R134a of prior art and the combination of ester oil, refrigeration agent increases the solubility of refrigerator oil, therefore, when defrosting, also utilize the thermal siphon effect and increase the capacity of reflux that together flows back to the refrigerator oil of compressor with refrigeration agent, like this, can further improve the reliability of compressor from vaporizer.
Then, shown in the left side of the center line of Fig. 3, in induction motor,, so, just can not produce the required moment of torsion of compressor 11 runnings if the long-pending high H1 and the H4 of the stator 180 of electronic member 110 and rotor 182 are little.On the contrary, in rotor 111, have the adjustable frequency motor of permanent magnet 151 by using, and do not need to produce the required field current of rotation torque, therefore, the long-pending high L1 of stator 112 and the long-pending high L4 step-down of rotor 111 not only can be made, but also electronic member 110 can be dwindled.Explanation in further detail, induction motor must make electric current through rotor (secondary), and need higher long-pending height in order to obtain this field current, but, because adjustable frequency motor has magnet secondary, so does not need to be used for producing the field current of moment of torsion, thereby can make long-pending high step-down.
And, if size H2, H3 that the coil 162 of the stator 112 of more electronic member 110 is given prominence to from outstanding size of stator core 161 and the coil the Distributed Winding 183, so, concentrate in the winding at salient pole, coil is not across between the slit of separating, but concentrate and closely be wound in one by one the salient pole portion, therefore, coil can not take place across between the slit and cause the protuberance of coil, therefore, significantly diminish shown in L2, L3, the total height of stator 112 descends, and can further dwindle electronic member 110.
Like this, because of coil tails off from the outstanding size of the iron core of stator, make that electronic member 110 can miniaturization, and, can also shorten being used for the cylinder body group 133 as compression element is installed in the height that salient pole is concentrated the foot section 133a in the stator core 161 of coiled pipe type significantly, can realize the miniaturization of compression element simultaneously.
In addition,, so, compare with general ferrite lattice if the permanent magnet of adjustable frequency motor 151 uses the magnet of terres rares, its excellent in magnetic characteristics, Magnetic flux density is approximately 4 times, and magnetic energy product is approximately 10 times etc., also can obtain sufficient characteristic even size is little.Therefore, not only can further reduce the height L5 of permanent magnet 151 and the height L1 of stator 112, but also can further dwindle electronic member 110.
In addition, in embodiments of the present invention, be formed with rotor recesses 111a in compression element 113 1 sides of rotor 111, bearing portion 135 extends in this rotor recesses 111a.Therefore, if according to the present invention, then can not shorten the length of bearing portion 135, make electronic member 110 and compression element 113 overlapping and dispose on the projection plane of short transverse, like this, not only can reduce the height of the whole Machinery Ministry that comprises electronic member 110 and compression element 113 greatly, and can not reduce the reliability of compressor and can further reduce the height of compressor.
If more specifically say, according to inventor's design, in induction motor, the long-pending height of stator 180 is 42mm, and the coil end height H2 of coil 183, H3 are 25mm, and the height H 4 of rotor 182 is 65mm.In contrast, in adjustable frequency motor, the long-pending high L1 of stator 112 is 26mm, and next lower in the situation of using rare earth element magnet equally, L1 is 16mm, if use salient pole to concentrate winding, coil end height L2, the L3 of the coil 162 of stator 112 become 9mm so.In addition, the long-pending height of rotor 111 is 35mm, if use rare earth element magnet, so just can be contracted to 20mm, compares with the compressor of usage induction motor, and maximum can be dwindled 58mm.
And as mentioned above, rotor 111 is at the over half degree of depth formation rotor recesses 111a of compression element 113 1 sides according to the rotor height direction.Because bearing portion 135 extends in this rotor recesses 111a, therefore, the lamination height of rotor 111 is 35mm, if use rare earth element magnet, so just can be contracted to 20mm, and, owing to the height of Machinery Ministry can be reduced to about the 10mm of bearing portion 135 expanded ranges, therefore, the total height of Machinery Ministry can be reduced about 25mm altogether.
As mentioned above, need not to improve the sliding length that total height just can prolong axle 130 and bearing portion 135 by prolonging the expanded range of bearing portion 135, making, and can reduce the compressive load that is applied on the axle 130, therefore, can improve the reliability of compressor.
But if continue to prolong the expanded range of bearing portion 135, so, the degree of depth of rotor recesses 111a will increase, and therefore, the fixed range that rotor 111 is fixed on the axle 130 shortens.
Particularly as described in the present embodiment, electronic member 110 is positioned at this mode in its underpart adopting compression element 113 to be arranged in top and the compressor that disposes, the rotor that in the electronic member 110 of bottom, is equipped with only by its with spool between retention force support.Therefore, as induction motor, obtain in the inside of using the rotor of flowing through by electric current under the situation of such motor of magnetic force, the heating of rotor 111 increases during running, because of might making rotor 111, thermal expansion comes off from axle 130, therefore, be fixed on the fixed range of axle on 130 can not shortening rotor 111 aspect the reliability significantly.But, according to inventor's research, using under the situation of permanent magnet 151 the do not flow through inside of rotor 111 of electric current, but utilize permanent magnet to obtain magnetic force, therefore, heating reduces significantly, and, compare with induction motor, it highly reduces, weight lightens, and therefore, can shorten fixed range significantly.For example, even if fixed range is contracted to about the 6mm below 20% of rotor total height, retention force is still enough, and vibration that rotor 111 can not cause because of the heating in when running or transportation etc. and impact etc. come off from axle 130.Improving reliability by the sliding length that prolongs axle 130 and bearing portion 135, and guaranteeing to reduce the height of the whole Machinery Ministry of being formed by compression element 113 and electronic member 110 on the basis of the rotor 111 and the retention force of axle 130.
In addition, by the fixed length of shortening rotor 111, and can improve the oil supply ability of the oil supply mechanism that is arranged on axle 130 inner (not shown).This be because, the slip of bearing portion 135 and axle 130 be to make that refrigerator oil 105 rises to axle 130 because the spiral fluted lift of oil supply with the distance of refrigerator oil 105 bottom, and this lift shortens significantly.Therefore, improve to the oil supply ability of the oil supply such as slide part of compression element 113, therefore, make reliability be improved by the slide part between axle 130 and the bearing portion 135, axle 130.
The particularly raising of said herein oil supply ability, under the situation of the compressor 11 that turns round with lower rotation by the adjustable frequency motor in the lift-launch present embodiment, the direct ratio that is reduced to rotating speed, oil supply ability when the centrifugal force of utilization axle comes oil supply then can descend, have such problem, but as mentioned above, by improving the oil supply ability, even under the situation of the compressor 11 that turns round with lower rotation, still can stably supply with refrigerator oil 105 to slide part.
Like this, when realization prevents coming off of rotor 111 and improves the oil supply reliability, in order to realize the miniaturization of short transverse, and in being the rotor 111 of 35mm, total height uses permanent magnet, then, change the fixed length of rotor 111 and axle 130 according to the rotating speed of 50 hertz (Hz) and carry out affirmation experiment to oil mass.Its result is that 80% situation of rotor total height is compared with rotor 111 and axle 130 fixed length, under 50% situation, improves 3% to oil mass, so, win initial success aspect the oil mass improving to give.In addition, under 30% situation, improve 5%, under 15% situation, improve 8% to oil mass to oil mass.
In addition, whether improve in order to confirm the oil supply reliability of frequency-changeable compressor when hanging down rotation, and the affirmation of carrying out under 20 hertz of giving oil mass is tested.Its result is that 80% situation of rotor total height is compared with rotor 111 and axle 130 fixed length, under 50% situation, improves 5% to oil mass, so, win initial success aspect the oil mass improving to give.In addition, under 30% situation, improve 10%, under 15% situation, improve 15% to oil mass to oil mass.
As mentioned above, because of bearing extends in rotor, so refrigerator oil 105 is promoted to is used for the spiral fluted lift of oil supply and then can shortens, the oil supply reliability is improved, when normal rotation and low rotation, all be set at below 50%, therefore, can win initial success, preferably below 30%, then can obtain certain effect.In addition, continue to shorten fixed length, it is contracted to about 15%, so, effect is then more obvious, and to the influence first meeting clue sometimes of the reliability that keeps rotor.When adopting, owing to must confirm fully that therefore, fixed length preferably is lower than 15% as far as possible,,, and should avoid that this thing happens then owing to keep the reliability of rotor to decline to a great extent if below 10%.
Particularly when low rotation, shorten refrigerator oil 105 is promoted to being used for the spiral fluted lift of oil supply, give oil mass for improving, its effect is very obvious.In recent years, energy-conservationization of refrigerated warehouse constantly developed, and adopted the compressor that turns round of the low rotation mode with energy-saving effect becoming main flow.But, when this low rotation, in any case owing to all can descend for oil mass, therefore, in order to improve, and in the oil supply structure of compressor inside, carried out various improvement to oil mass.Wherein, as described in present embodiment, improve to this starting point of oil mass by shortening fixed length, except having whole height that reduces compressor and the effect that lowers the center of gravity, also has the effect that when low rotation, improves to oil mass, therefore, it is a kind of technology with a plurality of beneficial effects.
As mentioned above, for the total height that makes compressor 11 becomes lower, the electronic member 110 of compressor 11 uses the frequency variator drive electric motor that turns round according to a plurality of rotating speeds that comprise higher than source power supply frequency at least frequency, by in the rotor 111 of electronic member 110, using permanent magnet 151, make to make compressor 11 miniaturizations, but also can dwindle height as the recess 27 of the machine room that compressor 11 is set.Therefore, can dwindle the outstanding of the accommodation space side of protuberance 30b in the storehouse of recess 27, thereby make it specious, it is big that the accommodation space in the storehouse becomes, and taking in property also can increase substantially.
In addition, by in a plurality of salient pole portion 171 of the stator core 161 of the stator 112 that constitutes compressor 11, concentrating winding type and in magnet 151, use rare earth element magnet via the salient pole of insulator winding around 162, and further compresses machine 11.
On the other hand, the compressor 11 of present embodiment, particularly compression element 113 adopt possess pressing chamber 134 and in pressing chamber 134 reciprocating motion type of pistons reciprocating 136, compression element 113 and electronic member 110 flexiblely are supported on the seal container 103 by spring 114.
As mentioned above, the member beyond the supporting structure portion by utilizing compression element 113 and electronic member 110 realizes reducing the purpose of compressor 11 height, like this, compares easy reduction vibration with rotary compressor etc.On structure, utilize the size of height dimension, even if the limited reciprocating movement type compressor of application in the refrigerated warehouse of top configuration compressor formula also can reduce the height of whole compressor.Particularly compressor 11 is configured under the situation on top, then can reduces the vibration that becomes big problem.Therefore, even vibration might be communicated to the refrigerated warehouse of the top configuration compressor formula of case body 1, also can eliminate user's sticky feeling, simultaneously, can dwindle the height of the recess 27 that compressor 11 is set, thereby provide a kind of taking in property of refrigerated warehouse to be improved and refrigerated warehouse easy to use.
In addition, reciprocating movement type compressor is inner low pressure type, and electronic member 110 is provided in the below in the seal container 103, simultaneously, and by flexiblely being supported on the seal container 103 as the support 113a of support unit and spring 114.Compression element 113 is provided in the top of electronic member 110, simultaneously, by as have resilient shapes high press fit pipe discharge tube 144 and be connected with seal container 103.On the support unit that will be configured in as the compression element 113 in vibration of compressor source by electronic component portion 110 in the seal container 103, therefore, compare with the situation of direct yielding support compression element 113, adopt this mode can make the distance of itself and elastic supporting part farther, and, owing to weakened during the stator of the vibration that in compression element 113, produces by the strong electronic member 110 of rigidity, be communicated to the outside of compressor then from the support unit of compressor, therefore can reduce the vibration of compressor.
In addition, the discharge tube 144 rubber-like shapes of the high press fit pipe of conduct in the compression element 113, like this, the vibration of compression element 113 is discharged from 144 of pipes and weakens, and is conveyed to the outside of compressor then, therefore, can further reduce the vibration of compressor.
In addition, leg 106 in seal container 103 by as the support 113a of support unit and spring 114 and by yielding support.Simultaneously, between the surface of contact 106a of the center of gravity A of the above-below direction of compressor and the leg of compressor 106 and elastic member 107 apart from B, distance C between the lower end surface 113b of the center of gravity A of the above-below direction of ratio piston compressor and support unit is short.Like this, the amplitude of the vibration of compressor is minimum near center of gravity A, along with away from center of gravity, it is big that vibration becomes, whole compressor is vibrated round center of gravity, therefore, than the support unit of supporting machinery portion following near center of gravity leg 106 and the Oscillation Amplitude of the surface of contact of elastic member 107 diminish, therefore, can reduce vibration and be conveyed to refrigerated warehouse.
In addition, in rotor 111, use permanent magnet 151 to reduce the height of rotor 111, and stator 112 uses salient poles to concentrate winding type to reduce the height of stator 112, so then can reduce the center of gravity of whole electronic member 110.
In addition, adopt at stator 112 under the situation of Distributed Winding, because coil exposes up from the assembly department that cylinder body group 133 is installed on the stator 112, therefore, the size of foot section that must make cylinder body group 133 is greater than the size of exposing of coil.But, adopt salient pole to concentrate winding type by stator 112, and can shorten the foot section that is installed in the cylinder body group 133 of the assembly department on the stator 112 as cylinder body group 133, can reduce the center of gravity of compression element in addition.
And, by the extended length of bearing portion 135 in rotor recesses 111a of prolongation cylinder body group 133, and can make cylinder body group 133 more downward, thereby can lower the center of gravity.
As mentioned above, the center of gravity A of the Machinery Ministry by making compressor inside is lower, make the leg 106 that the seal container 103 as the compressor outside is equipped with and the surface of contact 106 of elastic member 107 be positioned at the more position of top then, make to become littler apart from B between the surface of contact of center of gravity A and leg 106 and elastic member 107, be conveyed to refrigerated warehouse from compressor thereby can further reduce vibration.
This be requirement for example with the whole height as far as possible miniaturization of compressor configuration at the compressor of the such refrigerated warehouse in top, and, this not only require low vibration but also require in the refrigerated warehouse of low noise be reuse very much a bit.Make the factor of compressor miniaturization have a variety of, wherein, aspect internal structure, by in rotor 111, using permanent magnet 151, and can be in the maintenance effect of the rotor 111 of retainer shaft 130, thereby bearing portion 135 is further extended in rotor reduce internal height, configuration aspects externally, improve the putting surface of leg 106 on elastic member 107, also can realize the miniaturization of total height under the state that is provided with in being arranged on refrigerated warehouse, and, can realize centre of gravity and the high low oscillatory type light duty compressor of supporting stability.
In addition, according to present embodiment, the surface of contact 106a of the leg of compressor and elastic member more is positioned at the top than the lower end surface 113b of support unit.Like this, the vibration of compressor is passed on through support unit towards the below from the Machinery Ministry as vibration generation source, and afterwards, its direction becomes up, passes on to elastic member 107 by leg 106.So because the reception and registration route of vibration becomes complicated, therefore, vibration is further weakened in passing on route, and, the distance between the surface of contact 106a of leg 106 from support unit to compressor and elastic member 107 can also be prolonged.Therefore, particularly the vibration reception and registration owing to high-frequency region is weakened, the Oscillation Amplitude of the surface of contact 106a of leg 106 and elastic member 107 diminishes, therefore, can also reduce vibration and being conveyed to refrigerated warehouse, thereby the high-quality refrigerated warehouse of the noise that no uncomfortable vibration and friction cause can be provided.
In addition, leg 106 has the following 106d of elastic member configuration that stationary plane 106b that is fixed on the seal container 103 and the curved part 106c that erects upward and card end elastic member.Like this, leg is positioned on the stationary plane 106b of good seal container 103 bottoms of operability such as bonding, the face of configuration elastic member is positioned at more near below the elastic member configuration of center of gravity, can form curved part by the bending of simple leg like this, therefore makes to be very easy to.
In addition, leg 106 is fixed on stationary plane 106b on the seal container 103 and is positioned at as the downside of the lower end surface 113b of the stationary plane of the support unit 113a of container 101 down.As the vibration of the compression element 113 in vibration of compressor source by electronic member 110, but also by being supported the spring 114 that parts 113a is supported, in seal container 103, also be communicated to and be positioned at distance and add the vibration source stationary plane of the support unit 113a at position farthest.Therefore, vibration is significantly weakened.
In addition, leg 106 from stationary plane roughly after substantially horizontal stretches, erect vertically upward by forming curved part 106c, once more roughly after the substantially horizontal bending, form 106d below the elastic member configuration, therefore, until the surface of contact 106a of itself and elastic member 107, the reception and registration route of vibration is complicated and elongated, is weakened so vibration is passed on.In addition, because 106d is positioned at the position of center of gravity A of the Vertical direction of more close compressor below the configuration of the elastic member of elastic member 107, simultaneously, the length of elastic member 107 is long enough also, therefore, in elastic member 107, vibrate and also can fully be weakened, and can fully reduce the vibration that is communicated to refrigerated warehouse, thereby the high-quality refrigerated warehouse of the noise that no uncomfortable vibration and friction cause can be provided.
In the present embodiment, erecting of this Vertical direction highly is 24mm.This is 16% of a compressor total height.
In addition, the lower end surface 113b that erects aspect ratio support 113a of this Vertical direction more is positioned at the top, but, because the underpart of the spring 114 that engages with support 113a is embedded on the support 113a, and it is not have elasticity and be fixed on the seal container, therefore, in seal container, be fixed in the rubber-like spring the underpart above then better.
In addition, along with erecting highly of Vertical direction uprises, the distance that erects part is elongated, therefore, is difficult in and erects the high rigidity of acquisition in the part.Particularly under situation about being subjected to because of gate switch of refrigerated warehouse etc. from the impact force of the substantially horizontal of outside, the surface of contact 106a that can take place with leg 106 and elastic member 107 is the center, the such oscillation phenomenon of distortion before and after the above-below direction, therefore, stress concentrate be created in leg 106 erect the part periphery, reliability might descend.Therefore, if consider external impact force, then even more ideal aspect the reliability of compressor about then below 30% of the compressor total height.
In addition, by forming curved part 106c, be fixed on stationary plane on the seal container 103 distance between to the elastic member configuration of disposing elastic member 107 and can increase from leg 106, because it is elongated from the distance that the vibration of stationary plane 106b is passed on, therefore, particularly the reception and registration of high-frequency region is weakened, thereby can further reduce the vibration that is communicated to refrigerated warehouse.Therefore, make simply, and can reduce the vibration that is communicated to refrigerated warehouse, thereby can provide the no uncomfortable vibration and the high-quality refrigerated warehouse of the caused noise of friction with low cost.
And, by the rib 106e that extends across 106d below curved part 106c and the elastic member configuration is set on leg 106, make the rigidity of leg 106 strengthen, the intrinsic value raising that leg 106 itself has.Simultaneously, be difficult for vibration, therefore, can further reduce the vibration that conveys to elastic member, refrigerated warehouse body from the stationary plane of seal container 103 through leg because leg 106 itself becomes.In addition, owing to just can form rib, make the intensity enhancing of foot section, therefore, also can improve because of the transportation impact of refrigerated warehouse causes leg such problem that deforms by making simple pressing technology.
Therefore, make to make to become easily, can reduce to the vibration of refrigerated warehouse and pass on, thereby can provide the no uncomfortable vibration and the high-quality refrigerated warehouse of the caused noise of friction with low cost.
As mentioned above, as the miniaturization factor of the short transverse of compressor 11, distinguish from big aspect and then to comprise viewpoint corresponding and the viewpoint corresponding with compression element 113 with electronic member 110.Adopt this two factors simultaneously, still keep wherein any factor, select to get final product by required value and the viewpoint on other characteristic or the quality of coordinating reduction rigidity.
For example, the durable reliability of the precision of not having relatively high expectations, and the electronic member 110 that mainly is difficult to become the big reason of noise, vibration with reduction highly constitutes the method for main body, compressor 11 is being configured in the structure on top, in the influence of controlling noise, vibration, realizing also having advantage aspect the miniaturization.
On the other hand,, also can expect to realize miniaturization, and have the high advantage of cost performance with under the situation of achieving the goal in the miniaturization by compression element 113 with low cost.
In addition, as mentioned above, since compressor 11 is configured in the top of the case body 1 of refrigerated warehouse, and the position of close user's ear, so just must consider noise and vibration more than existing refrigerated warehouse, realize miniaturization by the height that reduces compressor 11, can be not extremely important because of the combination of the noise of refrigerated warehouse, miniaturization factor that vibration exerts an influence.In the structure of structure that supports electronic member 110, compression element 113 and supporting seal container 103, in controlling noise, vibration, take various ways to reduce height, perhaps do not adopt the simple design method that reduces height that produces baneful influence because of noise, vibration also very effective.
(mode of execution 2)
Fig. 6 is the summary section of the compressor of the refrigerated warehouse in the embodiments of the present invention 2.Fig. 7 is the summary section of the compressor of the refrigerated warehouse in the embodiments of the present invention 2.
In addition, for will not setting forth one by one,, include same content so long as not producing item improperly to using present embodiment with general structure and the action effect of mode of execution 1.
In the drawings, compression element 209 clips axle 210 the 210a of core shift portion, and have on coaxial main shaft part 210b and 210c of countershaft portion and the axle supporting spindle 210b of portion as the main bearing 220 of bearing portion and the supplementary bearing 221 of the axle supporting countershaft 210c of portion.
In addition, on the 210a of core shift portion, have by coupling component 230 pistons reciprocating 232 in pressing chamber 231.
In addition, by among the figure as can be known, seal container 250 comprises upper container 251 and following container 252, a plurality of legs 260 that are fixed on down on the container 252 are set in the recess by elastic member 270.Be provided with at the compressor of recess recess 281 is set on the face 280, in recess 281, set simultaneously elastic member 270, like this, the big mode of distance that is provided with between the foot 290 of face 280 and compressor according to the aspect ratio compressor of elastic member 270 is carried compressor.In addition, the downside of elastic member 270 embeds in the recess 281 and is fixed.
Below, operation, the effect of the compressor that adopts said structure described.
Compressor is in operation process, and in order in pressing chamber 231 refrigeration agent to be compressed to high pressure, this compressive load conveys to the 210a of core shift portion by piston 232 and coupling component 230.
Therefore, this compressive load that the core shift portion of axle 210 is born is passed on and deflection to whole axle 210, so, bear bigger surface pressure at the main shaft part 210b of axle and the slide part between the main bearing 220.
The main shaft part 210b of axle 210 and the sliding length of main bearing 220 are short more, and this surface pressure is just big more.But, in the present embodiment, except the main shaft part 210b and main bearing 220 of axle 210, also at its two local supporting axles 210 of supplementary bearing 221 of the 210c of countershaft portion of axle 210 and axle supporting, therefore, can can further prevent the bending of axle from the piston 232 of two-side supporting, thereby improve the reliability of the slip surface of axle 210 as vibration source.
In addition, compare, even if shorten the sliding length of main bearing 220 with existing mode, also can come completion, so just can guarantee the sliding length of whole axle 210, therefore with the sliding length of supplementary bearing 221, the reliability of compressor can be do not reduced, and the height of compressor can be further reduced.
Like this, in reciprocating movement type compressor, for this a great problem of bearing length of how when reducing height, guaranteeing a supporting axle 210, if employing the present invention so, has main bearing 220 and supplementary bearing 221 in the both sides that clip the 210a of core shift portion that possesses the piston 232 that moves back and forth, like this, just can the bending of axle 210 can be further prevented, thereby the reliability of the slip surface of axle can be improved from the piston 232 of two-side supporting as vibration source.Therefore, compare,, still can guarantee the reliability of compressor, therefore, can not reduce the reliability of compressor, and can further reduce the height of compressor even the sliding length of main bearing shortens with existing mode.
Wherein, in the present embodiment, supplementary bearing 221 clips the 210a of core shift portion and is configured in a side opposite with main bearing 220, still, even clip rotor 240 with main shaft part 210b coaxial on countershaft portion is set, equally also can guarantee the bearing length of a supporting axle 210, compare, even the sliding length of main bearing shortens with existing mode, still can guarantee the reliability of compressor, therefore, the reliability of compressor can be do not reduced, and the height of compressor can be further reduced.
In addition, be arranged in the recess, be provided with at the compressor of recess recess 281 is set on the face 280, simultaneously, set elastic member 270 in recess 281, like this, the height of elastic member 270 is become, and distance that ratio piston compressor is provided with between the foot 290 of face 280 and compressor is big.Like this, just can increase the height that can effectively the vibration from compressor be conveyed to the elastic member 270 of refrigerated warehouse.On the other hand, the thickness that face is set is the factor of the protuberance size of decision in the storehouse of refrigerated warehouse, the structure of conduct supporting compressor for the cooling characteristics that obtains refrigerated warehouse, must have certain thickness, can realize simultaneously that by forming recess reducing vibration by the height that increases elastic member passes on, and guarantee cooling characteristics and the intensity of guaranteeing as the structure of supporting compressor by the thickness of guaranteeing the face that is provided with.Therefore, increase can be passed on the height from the elastic member of the vibration of compressor effectively, like this, the noise that not only can significantly alleviate uncomfortable vibration and produce because of vibration, simultaneously, can also guarantee to keep characteristic by the thermal insulation of guaranteeing refrigerated warehouse, and keep anti-transportation, thereby a kind of high-quality refrigerated warehouse can be provided by the intensity of guaranteeing structure.
As mentioned above, external support structure as the supporting compressor, increase the height of elastic member to realize reducing vibration by forming recess, like this, on the basis of the height that further reduces compressor, do not reduce the reliability of compressor, and then the noise that can significantly alleviate uncomfortable vibration that compressor causes and be produced because of vibration.In addition, can also dwindle protuberance size in the end face of refrigerated warehouse carries the storehouse of the such refrigerated warehouse of compressor.
In addition, by embedding the downside of secures resilient member, and can be under the situation of not adding unnecessary parts the position of secures resilient member, make the position of compressor can not depart from, the vibration that causes because of the variation of the supporting surface of elastic member is passed on to change and also can be alleviated, and, can provide a kind of cheap and anti-transportation also to be improved, and the high-quality refrigerated warehouse that significantly alleviates of the noise that face on uncomfortable vibration be set or because of vibration cause of elastic member in refrigerated warehouse.
(mode of execution 3)
Fig. 8 is the summary section of the compressor in the embodiments of the present invention 3.Fig. 9 is the approximate three-dimensional map of the seal container of the compressor in the embodiments of the present invention 3.Figure 10 is the general view of the seal container of the compressor in the embodiments of the present invention 3.Figure 11 is the summary section of the compressor in the embodiments of the present invention 3.
In addition, for will not setting forth one by one with mode of execution 1 and 2 general structure and action effects, so long as not producing item improperly to using present embodiment, include same content, in the present embodiment, will the seal container of the compressor that illustrated in mode of execution 1 and 2 be described.
In the drawings, have a plurality of teats 410 in the bottom of seal container 403.
A plurality of teats 410 mainly contain from the inside of seal container and are convex teat that protrudes shape and the concavity teat 411 that is concave shape from the outside of seal container 403 to private side to the outside.
As the convex teat, has leg teat 410a near the leg 406 of the compressor of in seal container 403, being installed and the attachment portion 420 of seal container 403.This leg teat 410a is than the curvature of seal container periphery obviously little curvature and the convex teat that forms according to the periphery of attachment portion 420.
In addition, be used for supporting support unit 413, form by the spring 414 that support 413a and elastic member as support unit constitute by the Machinery Ministry that electronic member and compression element constituted of seal container inside.Near the seal container of the lower end surface that is positioned at support 413a, possesses supporting teat 410b.This supporting teat 410b is than the curvature of seal container periphery obviously little curvature and the convex teat that forms according to the periphery of support vertical lower.
In addition, the support 413a of the below of seal container 403 and leg 406 and spring 414 is fixed by spot welding (spot welding), that is, the underpart of leg 406 and support 413 is welded on the convex teat.
In addition, in seal container, form the concavity teat 411 that the periphery than seal container cave in more to the inside, and according to than the obvious little curvature and forming of the curvature of the periphery of seal container, its with support teat 410b and form continuously.
Below, operation, the effect of the compressor that adopts said structure described.
As described in present embodiment, particularly be equipped with a plurality of teats 410 in the bottom of seal container 403, thereby, owing to will realize the purpose of the miniaturization of compressor short transverse, be difficult on seal container and below setting slightly be spherical curved surface from the center of compressor, make top and following might the becoming of seal container near the such curved surface in plane.
Like this, if having in the shape of seal container 403 near the so smooth curved surface of planar surface portion, so, the rigidity of this part will die down, and is subjected to the influence of noise or vibration easily.
Therefore, in the present embodiment, near the seal container that is positioned at as the lower end surface of the support 413 of the Machinery Ministry of vibration generation source and seal container, supporting teat 410b is set, like this, when the vibration of Machinery Ministry is passed through spring 414 when seal container is propagated, with the attachment portion 420 as the stationary plane of the underpart of support 413a and seal container 403 is the center, conveys to the little supporting teat 410b of curvature in its vicinity.Like this, just can improve near the rigidity in support underpart, therefore, can reduce from vibration, the noise of compressor biography to seal container.
And, as seal container 403 and leg, particularly below seal container side as near the attachment portion 420 of the leg 406 of the compressor of the external support of compressor and seal container 403 leg teat 410a being set, like this, can improve near the rigidity the attachment portion 420.Therefore, can reduce vibration, the noise of propagating through leg 406 and to the refrigerated warehouse body from seal container.
As mentioned above, near the support of the private side of compressor and outer side, be provided with block protuberance, like this, even make seal container for the total height that reduces compressor below, become under the situation near the deep camber curved surface on plane, by using the compressor of particularly passing on the rigidity in the route to be improved in the vibration of seal container, and the refrigerated warehouse that can provide a kind of vibration, noise further to reduce.
And, in the present embodiment, form concavity teat 411 continuously to the inboard of seal container depression with supporting teat 410b, form little concavo-convex, like this, very effective of curvature continuously by shape for the rigidity of further raising teat according to complexity.
In addition, as described in present embodiment, except pass on route with the vibration of seal container 403 is that the center setting has the teat of small curve, if as illustrated in the enforcement mode 1, the surface of contact 106a of the leg of compressor and elastic member is positioned at lower end surface 113b than support unit more by last position, thus, the vibration that can further improve compressor is after pass on towards the below and through support unit as the Machinery Ministry of vibration generation source, direction becomes the rigidity of passing through the reception and registration route of leg 106 when elastic member 107 is passed on up, makes and passes on the route complexity.Therefore, can further reduce the vibration of refrigerated warehouse.
In addition, because elastic member 107 more is positioned at position near the center of gravity A of the above-below direction of compressor than 106d below the elastic member configuration, therefore, the amplitude of the vibration of compressor is minimum near center of gravity A, becomes big along with then vibrating away from center of gravity, whole compressor is vibrated around center of gravity, therefore, below the support unit of supporting machinery portion, compare, diminish near the vibration amplitude of the surface of contact of the leg 106 of center of gravity and elastic member 107, therefore, can further reduce vibration passes on to refrigerated warehouse.
In addition, as described in present embodiment, except pass on route with the vibration of seal container 403 particularly is that the center is provided with and has the teat of small curve, if as illustrated in the mode of execution 2, be provided with at the compressor of recess recess 281 is set on the face 280, simultaneously, in recess 281, set elastic member 270, like this, carry under the situation of compressor in the big mode of distance that ratio piston compressor is provided with between the foot 290 of face 280 and compressor that becomes of the height according to elastic member 270, vibrate from Machinery Ministry to the effect that the foot of compressor passes on except having to reduce, can also increase elastic member, thereby, can further reduce the vibration of refrigerated warehouse, noise.
In addition, as described in present embodiment, except the vibration communicating path with seal container 403 is that the center setting has the teat of small curve, also as shown in figure 11, possess at teat under the situation of stationary plane 456a of leg, even without as the illustrated curved part that erects towards the top from stationary plane in the enforcement mode 1, if leg is fixed on fixing part on the seal container as teat, so, the vibration in the route is passed in the vibration that still can reduce compressor by teat.Therefore, do not possess from the fixing part of seal container towards above under the situation of the curved part that erects, also the contacting part 458 of the leg 456 of compressor and elastic member 457 can be configured in more position near the center of gravity A of the above-below direction of compressor.Therefore, the amplitude of the vibration of compressor is minimum near center of gravity A, become big along with then vibrating away from center of gravity, whole compressor is vibrated around center of gravity, therefore, below the support unit of supporting machinery portion, compare, diminish near the vibration amplitude of the surface of contact 458 of the leg 456 of center of gravity and elastic member 457, therefore, can further reduce vibration passes on to refrigerated warehouse.
Therefore, can provide a kind of manufacturing process simple, and can reduce the compressor of the vibration that is communicated to refrigerated warehouse, thereby can provide a kind of high-quality refrigerated warehouse that does not have the noise that uncomfortable vibration and friction cause with low cost.
(mode of execution 4)
Figure 12 is the summary section of the refrigerated warehouse in the embodiments of the present invention 4, Figure 13 is the summary back elevation of refrigerated warehouse in the same mode of execution, Figure 14 is the summary parts unfolded drawing of refrigerated warehouse in the same mode of execution, Figure 15 is the sectional arrangement drawing of the compressor of refrigerated warehouse in the same mode of execution, Figure 16 is the horizontal sectional drawing of the compressor of refrigerated warehouse in the same mode of execution, Figure 17 is the induction motor of the compressor of refrigerated warehouse in the same mode of execution and the comparison diagram of adjustable frequency motor, Figure 18 is the planimetric map of salient pole concentrated winding stator of the compressor of refrigerated warehouse in the same mode of execution, and Figure 19 is the stereogram of the leg part of the compressor of refrigerated warehouse in the same mode of execution.
With reference to the accompanying drawings, embodiments of the present invention are described.In addition, identical with background technique structure will mark identical symbol and omit its detailed explanation.
In the drawings, case body 1 comprises resinites such as ABS is carried out the interior case 13 of vacuum forming and use the heat insulation wall of injecting the insulator 15 of filled and process in the space that outer container 14 constituted of metallic material such as pre-coated steel plate and forming.Insulator 15 for example uses RPUF or phenolphthalein foam or styrenic foams etc.In addition, if use the cyclopentane of hydrocarbon system, so, then better from the viewpoint that prevents global warming as foamed material.
Case body 1 is distinguished into a plurality of area of insulation, and a 15a is arranged in front.It is rotary that door 15a adopts top, and the bottom is the structure of drawing and pulling type.Switching chamber 16 and the vegetable compartment 3 of ice making compartment 17 and drawing and pulling type and the refrigerating chamber 4 of drawing and pulling type of the drawing and pulling type that the storeroom 15b by heat insulation subregion is cold storage room 2 from top to bottom, be set up in parallel.In each area of insulation, the door 15a with thermal insulation is set respectively by packing ring 18.Be cold storage room revolving door 5, switching chamber sliding door 19, ice making compartment sliding door 20, vegetables sliding door 6, refrigerating chamber sliding door 7 from top to bottom.
Cold storage room revolving door 5 is provided with door pocket (door pocket) 21 with as accommodation space, is provided with a plurality of lattice 22 of taking in refrigerated warehouse.
The following describes the details of case body 1.The outer container 14 of case body 1 is to cut end face 23 machine room plate 28 the most inboard and that bend to Shell Plate 24 and the bottom panel 25 and the backplate 26 of U word shape and form recess 27 by sealed type assembling to constitute.The case body 1 of assembling forms recess 27 in the part across end face 23 and back side 28a.Recess 27 is side-prominent as the superiors lattice 29 and interior case 13 the superiors accommodation space 29a that divided and second layer lattice 30 and the superiors lattice 29 second layer accommodation space 30a one that divided of protuberance 30b in refrigerated warehouse.In addition, the lattice of the indoor side diapire face 30c of preferred protuberance 30b and the superiors' lattice 29 bottom 30d is roughly on same horizontal plane.
In addition, bottom panel 25 and backplate 26 are provided with the depression handle that can catch on finger tip.
In addition, interior case 13 is than the little circle of outer container 14, and back side the inside part depression inwards, by it being assembled in the outer container 14, forms the space that is filled foam heat-insulating body 15 like this in case body 1.Therefore, part also is filled foam heat-insulating body 15 and forms heat insulation wall about machine room plate 28, and its intensity is also guaranteed.
Below freeze cycle is described.Freeze cycle is by the condensed device (not shown) on the compressor 11 on the face that the is provided with 28b that will be provided in recess 27 and the discharge pipe arrangement 31 that is connected with compressor 11 and the end face 23 that is arranged on Shell Plate 24 and side, recess 27 and the bottom panel 25, as the capillary tube 32 of decompressor be used for dewatered exsiccator (not shown), the vaporizer 9 that is disposed and suck pipe arrangement 33 and connect into ring-type and constitute near the storehouse, the back side of vegetable compartment 3 and refrigerating chamber 4 internal fan 8.
Be provided with the top cover 34 that is fixed by screw etc. in recess 27, it is taken in compressor set in recess 27 and machine room fan 34a, condensed device (not shown), exsiccator (not shown), discharges pipe arrangement 31, sucks the part of pipe arrangement 33 etc.The top of top cover 34 and end face 23 roughly at grade, the top 34b of compressor 11 is positioned at the position lower than end face 23.
Capillary tube 32 and suction pipe arrangement 33 are steel pipes that length equates substantially, and except the end, but other parts are soldered in the mode of heat exchange.In order to reduce pressure, capillary tube 32 uses the bigger thin footpath steel pipe of internal flow resistance, and its internal diameter is the length of 0.6mm to 1.0mm, simultaneously by regulating the decompression amount that designs.In order to reduce the pressure loss, suck pipe arrangement 33 and use the steel pipe in big footpath, its internal diameter is that 6mm is to 8mm.In addition,, make capillary tube 32 and suck that pipe arrangement 33 is compressed into sinuous (sawtooth) shape and the back side that is arranged on refrigerated warehouse 2, and be embedded in the insulator 15 between interior case 13 and backplate 26 in order to ensure the length of heat exchanger 35.An end of capillary tube 32 and suction pipe arrangement 33 is from giving prominence near vegetable compartment 3 rears of interior case 13 and being connected with vaporizer 9, another end is outstanding upward from the grooving portion at the face that the is provided with 28b edge that is arranged on machine room plate 28, and is connected with condensed device (not shown), compressor 11 with the exsiccator (not shown) respectively.
In addition, sucking pipe arrangement 33 and discharging in the pipe arrangement 31, with compressor 11 joints near be provided with the U-shaped turn of bilge 36 that is used for keeping the ductility that is connected, and be incorporated in the recess 27.In order to improve assembly operation and service, in order to reduce the closeness of pipe arrangement, and can be visual to tubing connection portion from the rear, tubing connection portion is configured in the left and right sides of compressor 11 in the back side one side in the face of compressor 11.
Details to compressor 11 describes below.
In the accompanying drawings, engaging by drawing and forming thickness is the following container 101 of the mortar shape that forms of the rolled plate of 2mm to 4mm and the upper container 102 of the shape of falling the mortar, and welding joint partly full week and form seal container 103.The refrigerator oil 105 that refrigeration agent 104 and bottom are arranged in the internal storage of seal container 103.Leg 106 is fixed on the downside of seal container 103, by blocking the elastic member 107 that ends with leg 106, makes hole 109 movable being embedded in the pin 108 set in the recess 27 of refrigerated warehouse of elastic member 107, fixes the position with this.
In addition, leg 106 in seal container 103 by as the support 113a of support unit and spring 114 and by yielding support.Simultaneously, the distance C apart between the lower end surface 113b of the center of gravity A of the Vertical direction of B ratio piston compressor 11 and support unit between the surface of contact 106a of the leg 106 of the center of gravity A of the Vertical direction of compressor 11 and compressor and elastic member 107 is short.
As described in present embodiment, the leg 106 of the center of gravity A ratio piston compressor of the short transverse of compressor and the surface of contact 106a of elastic member 107 are positioned at the top, compare with the lower end surface 113b of the support unit of compressor inside, the leg 106 of compressor and the surface of contact 106a of elastic member 107 are positioned at the top.
In addition, the aspect ratio compressor of elastic member 107 in recess the face that is provided with D and the lowest end E of compressor between big apart from F.
Leg 106 has stationary plane 106b that is fixed on the seal container and the curved part 106c that erects up and blocks the following 106d of elastic member configuration that ends elastic member, and the rib 106e that extends across at least two places among stationary plane 106b and curved part 106c and the following 106d of elastic member configuration also is being set.
Electronic member 110 concentrates the stator 112 of winding to form by rotor 111 and salient pole.Compression element 113 is constructed above electronic member 110, and is driven by electronic member 110.
Electronic member 110 all is incorporated in the seal container 103 with compression element 113, by flexiblely being supported in down the bottom of container 101 and the lower end of stator 112 as the support 113a of support unit and spring 114.
At the support 113a that the lower end was equipped with of this stator 112 and spring 114 is to be used for the support unit of yielding support Machinery Ministry.
The terminal 115 of the part of container 101 is used for connecting electric (not shown) under constituting inside and outside seal container 103, by going between 116 to electronic member 110 power supplies.In addition, in seal container 103, be provided be used for the discharge tube 120 that is connected with the discharge pipe arrangement 31 of refrigeration system be used for suck the suction pipe 121 that pipe arrangement 33 is connected and in refrigeration system, enclose refrigeration agent 104 after, be used for making system to become the sealed pipe 122 of confined space.
By the running of compression element 113, refrigeration agent 104 is inhaled into the inside of seal container 103 by sucking pipe arrangement 33 and suction pipe 121, discharges to discharging pipe arrangement 31 from discharge tube 120.
This is discharged pipe arrangement 31 and flexiblely is connected with the discharge tube 120 of compression element 113 and seal container.
Below, the details of compression element 113 is described.
Axle 130 has by being pressed into shrunk fit and the main shaft part 131 of fixed rotor 111 and the core shift portion 132 that forms with main shaft part 131 core shifts.Cylinder body group 133 has slightly cylindrical circular pressing chamber 134, also has the bearing portion 135 of main shaft part 131 of supporting axle 130 that is used for simultaneously, and is formed at the top of electronic member 110.
At this moment, rotor 111 forms rotor recesses 111a in compression element one side, and bearing portion 135 extends in this rotor recesses 111a.
Piston 136, and is connect by the coupling gear 137 core shift portion 132 with axle 130 in pressing chamber 134 by movable embedding (trip embedding), rotatablely moving of axle 130 is converted to the to-and-fro motion of piston 136.Space by piston 136 expansions, compresses chamber 134, suck refrigeration agent 104 in the seal containers 103 from the suction port 141 of absorbing silencer 140, utilization is arranged on the valve (not shown) that cylinder body covers 142 inside, is expelled in the discharge pipe arrangement 31 of seal container 103 outsides by formed exhaust silencer 143 and discharge tube 144, discharge tube 120 in cylinder body group 133.
Discharge tube 144 as high press fit pipe is that internal diameter is the steel pipe of 1.5mm to 3.0mm, uses the bending of L word or U word and has ductility, and the discharge tube 120 of compression element 113 and seal container 103 flexiblely is connected.
Below, the details of electronic member 110 is described.
Rotor 111 is by the main body portion 150 of the silicon steel plate of stacked 0.2mm to 0.5mm and take in the hole 152 of the permanent magnet 151 that is located in the main body portion 150 and insert after the permanent magnet 151 and the end plate 153 of blocking hole 152 is formed, and is fixed into an integral body by rivet pin 154.
Then, stator 112 is made up of the coil 162 of the copper cash of the insulating covering of the stator core 161 of the silicon steel plate of lamination 0.2mm to 0.5mm and outsourcing 0.3mm to 1mm.It is circular that to be salient pole portions 171 form according to fixing interval in stator core 161, and coil 162 is wound onto in the salient pole portion 171 and (is called salient pole and concentrates winding), connects into an integral body by contact line 172 between each coil.
Below, by adjustable frequency motor and induction motor relatively are described.
For the ease of understanding explanation, in the drawings, be that the boundary is divided into both sides and compares with the center line, the cross section of induction motor is represented in the left side, the cross section of adjustable frequency motor is represented on the right side.Each motor is used in the compressor with identical substantially maximum refrigerating capacity.The height L1 of the stator core 161 of the stator 112 of adjustable frequency motor is significantly less than the height H 1 of stator core 181 of the stator 180 of induction motor.And the height L4 of the rotor 111 of the adjustable frequency motor also height H 4 than the rotor 182 of induction motor is low.In addition, using salient pole to concentrate in the adjustable frequency motor of winding, coil end height H2, the H3 of the coil end height L2 of the height that exposes from stator core 161 as coil 162, the coil 183 that L3 is significantly less than induction motor.And permanent magnet 151 uses uncommon great soil group magnet, can make the height L4 of the height L1 of stator core 161 of height L5, adjustable frequency motor of permanent magnet 151 and rotor 111 lower like this.
Below, operation, the effect of the refrigerated warehouse that adopts said structure described.
At first, the temperature setting to each area of insulation describes.For stored refrigerated, cold storage room 2 is set to 1～5 ℃ with the temperature of not freezing as lower limit usually.By user's setting, can change the temperature of switching chamber 16 and set, it can be from the freezer temperature scope to refrigeration, vegetable compartment temperature range and set needed temperature range for.In addition, ice making compartment 17 is independently to ice preserving chamber, and it is set to-18～-10 ℃ of higher temperature.
In most of the cases, the temperature of vegetable compartment 3 is configured to equate with cold storage room 2 or is high slightly 2 ℃～7 ℃.For freezing preservation, refrigerating chamber 4 is set to-22 ℃～-18 ℃ usually, but in order to improve preservation state, also is set to lower temperature low temperature for example-30 ℃ sometimes.
In order to keep different temperature to set effectively, each chamber is distinguished by heat insulation wall, and heat insulation wall forms by foam-filled insulator 15 between interior case 13 and outer container 14.Insulator 15 has enough heat-shielding performancies, guarantees the intensity of case body 1 simultaneously.
Operation to freeze cycle describes below.According to the temperature that sets in the storehouse, begin and stop the cooling running by signal from temperature transducer (not shown) and control panel (not shown).According to the instruction of cooling running beginning, compressor 11 is discharged the refrigeration agent 104 of High Temperature High Pressure.The refrigeration agent 104 that is discharged from dispels the heat and condensing liquefaction in the condensed device (not shown) then by discharging pipe arrangement 31, in capillary tube 32, be depressurized and become the liquid refrigerant of low-temp low-pressure, arrive vaporizer 9 then, refrigeration agent in the vaporizer 9 is evaporated gasification, in the buffer (not shown), distribute, like this each chamber is cooled off by the cool air of the low temperature of heat exchange.
Below, the operation of compressor 11 is described.
If compressor 11 is energized, so, the stator 112 that electricity is supplied to electronic member 110 by terminal 115, lead-in wire 116, by 112 rotating magnetic fields that produced, rotor 111 begins rotation.Because of the rotation of rotor 111, the core shift portion 132 of the axle 130 that links with rotor carries out and the rotatablely moving of the axle center core shift of axle 130.The core shift motion quilt and the coupling gear 137 that core shift portion 132 connects of axle 130 are transformed into to-and-fro motion, so become the to-and-fro motion of the piston 136 that connects with the other end of coupling gear 137, piston 136 changes the volume in the pressing chamber 134 on one side, also carries out the suction compression of refrigeration agent 104 simultaneously.
The volume that sucks, discharges in the reciprocal process of piston 136 in pressing chamber 134 is called the inflator volume, because of the big or small cooling capacity of inflator volume will change.
In the refrigerated warehouse that carries out aforesaid operations, carried in the recess 27 that forms across the end face 23 of refrigerated warehouse and back side 28a by compressor that elastic member 107 and leg 106 supported 11.Concave depth (highly) needs the bottom and height, upper container 102 and the minimum slit of top cover 34 of the minimum slit that face 28b is set, compressor 11, the thickness of top cover 34 of the following container 101 of compressor 11 at least.For fear of compressor 11 with face 28b is set or top cover 34 contacts, need minimum slit, if fix from the minimum thickness of intensity aspect top cover 34, concave depth (highly) is then determined by the height of compressor 11 so.
On the other hand, in the storehouse of refrigerated warehouse, because recess 27, protuberance 30b is outstanding.The taking in property variation if protuberance 30b is excessive, simultaneously, when opening cold storage room revolving door 5 and see cold storage room 2 indoor, because of the outstanding outward appearance that has a strong impact on of protuberance 30b.Therefore, need a kind of technology that reduces compressor 11 height.
Height to compressor 11 carries out specific description below.The following container 101 of compressor 11, upper container 102 use the steel plate of 2mm to 4mm, about altogether 7mm.Following container 101 and upper container 102 are the shape that has curvature at above-below direction respectively.This is in order to make the living space of placing refrigerated warehouse more comfortable, and the needs that reduce noise design, and have curvature by making container, and the rigidity of container, intrinsic value improve like this, and the noise that causes that resonates is controlled.The radius of curvature is approximately R100mm to R150mm, and in order to obtain this curvature, it is strong that a side must be about 13mm.
Secondly, refrigerator oil 105 is stored in the bottom of seal container 103.In order to guarantee compressor 11 running under various conditions, refrigerator oil 105 is enclosed about 200 milliliters to 250 milliliters, in height accounts for 20mm greatly.And, if refrigerator oil 105 contacts with electronic member 110, will increase unusual input so, therefore, need about 9mm as the space length that can not contact.
In the refrigerated warehouse on the end face 23 that compressor 11 is carried at refrigerated warehouse, because compressor 11 is near the position of user's ear, therefore, the noise that reduces compressor 11 is more important, therefore, the rigidity that improves seal container 103 is very important, from improving the viewpoint of reliability, guarantees that refrigerator oil 105 is also very important.Owing to these reasons, add the 7mm of thickness of slab, the 13mm of curvature, curvature and the 20mm that oil produces are guaranteed the 9mm that space length is required, need 49mm altogether, therefore, it is not too appropriate to dwindle this size from characteristic.
Therefore, the height of compressor 11 is determined by electronic member 110 and compression element 113 substantially.Compression element 113 then can be realized the miniaturization of piston 136 and coupling gear 137, axle 130, bearing portion 135 by dwindling the inflator volume, and still, refrigerating capacity diminishes if the inflator volume diminishes.In the present embodiment, obtain big ability,, come compresses member 113 like this according to turning round than the high rotating speed of source power supply frequency (is 50 hertz or 60 hertz in Japan) in order to utilize little inflator volume.More specifically say, because the inflator volume can approximately dwindle 30%, therefore, the reduced of piston 136 also diminishes so act on the load of axle on 130, therefore, the length of the bearing portion 135 of the load of supporting axle also can shorten, and electronic member 110 is established near compression element 113.By the ingenious height rotation that utilizes frequency variator to produce, in inventor's design, can be contracted to 5mm to 10mm.
In addition, adopt the frequency variator mode to set a plurality of rotating speeds of electronic member 110, needn't comprise the rotating speed that is equivalent to the frequency higher than in Japan source power supply frequency (50 hertz or 60 hertz).
Promptly, be no more than the setting combination of source power supply frequency (being not limited in Japan) as the upper limit of the frequency of a plurality of settings, be expected to obtain energy-saving effect and quiet effect, aspect miniaturization, reduce the effect of electronic member 110 thickness according to above-mentioned frequency variator mode, the combination of the inflator volume that does not adopt compresses member 113 is also arranged.
Below, shown in the left side of the center line among Figure 17, in induction motor,, so, just can not produce the required moment of torsion of compressor 11 runnings if the long-pending thick H1 and the H4 of the stator 180 of electronic member 110 or rotor 182 are little.In contrast, by utilizing the adjustable frequency motor that has used permanent magnet 151 in the rotor 111, owing to need not to produce the required field current of rotation torque, therefore, the long-pending thick L1 of stator 112 and the long-pending thick L4 of rotor 111 can reduce, and can also make electronic member 110 miniaturizations.If explanation in more detail, induction motor must make electric current through rotor (secondary), and need in order to obtain this field current high long-pending thick, but owing to adjustable frequency motor has magnet secondary, therefore do not need to be used for producing the field current of moment of torsion, thereby can reduce long-pending thick.
And, if size H2, H3 that size that the coil 162 of the stator 112 of more electronic member 110 exposes from stator core 161 and the coil the Distributed Winding 183 expose, concentrate in the winding at salient pole, coil is not across between the slit of separating, but concentrate and closely be wound in one by one the salient pole portion, therefore, coil can not take place across between the slit and cause the protuberance of coil, therefore, shown in L2, L3, significantly diminish, the total height of stator 112 descends, and can further make electronic member 110 miniaturizations.
In addition, if the permanent magnet of adjustable frequency motor 151 uses the magnet of terres rares, so, compare with general ferrite lattice, its magnetic property is good, and Magnetic flux density is approximately 4 times, and magnetic energy product is approximately 10 times, also can obtain sufficient characteristic even size is little.Therefore, can not only further reduce the height L5 of permanent magnet 151 and the height L1 of stator 112, but also can further dwindle electronic member 110.
In addition, in the present embodiment, at the compression element 113 1 sides formation rotor recesses 111a of rotor 111, bearing portion 135 extends in this rotor recesses 111a.Therefore, according to the present invention, do not shorten the length of bearing portion 135, but make electronic member 110 and compression element 113 overlapping and be configured on the projection plane of short transverse, not only can reduce the height of the whole Machinery Ministry that comprises electronic member 110 and compression element 113 so greatly, and can not reduce the reliability of compressor and further reduce the height of compressor.
Say that more specifically in inventor's design, in induction motor, the long-pending thick of stator 180 is 42mm, the coil end height H2 of coil 183, H3 are 25mm, and the height H 4 of rotor 182 is 65mm.In contrast, in adjustable frequency motor, the long-pending thick L1 of stator 112 is 26mm, and next lower in the situation of using rare earth element magnet equally, L1 is 16mm, if use salient pole to concentrate winding, coil end height L2, the L3 of the coil 162 of stator 112 become 9mm so.In addition, the long-pending thick of rotor 111 is 35mm, if use rare earth element magnet, so just can be contracted to 20mm, compares with the compressor of usage induction motor, and maximum can be dwindled 58mm.
In addition, as mentioned above, form rotor recesses 111a according to the degree of depth over half of rotor height direction in compression element 113 1 sides of rotor 111.Bearing portion 135 extends in this rotor recesses 111a.With the long-pending thick 35mm that is reduced into of rotor 111,, so just can be contracted to 20mm if use rare earth element magnet, then, owing to the height of Machinery Ministry can be reduced to about 10mm, therefore, the total height of Machinery Ministry can be reduced about 25mm altogether as the extended length of bearing portion 135.
As mentioned above,, need not to increase total height like this and just can increase the sliding length of axle 130 and bearing portion 135, and can reduce the compressive load on the axle 130, therefore can improve the reliability of compressor by increasing the extended length of bearing portion 135.
But if continue to increase extended length, so, the degree of depth of rotor recesses 111a will become greatly, and therefore, the fixed length that rotor 111 is fixed on the axle 130 will shorten.
Particularly as described in the present embodiment, adopting compression element 113 to be positioned at top, electronic member 110 is arranged in this mode in its underpart and the compressor that disposes, the rotor that is equipped with in the electronic member 110 of bottom only by it with spool between retention force support.Therefore, as induction motor, obtain in the inside of using the rotor of flowing through by electric current under the situation of such motor of magnetic force, the heating of rotor 111 increases during running, because of thermal expansion rotor 111 might come off from axle 130, therefore, be fixed on the fixed length of axle on 130 can not significantly shortening rotor 111 aspect the reliability.But, according to inventor's research, using under the situation of permanent magnet 151 the do not flow through inside of rotor 111 of electric current, but utilize permanent magnet to obtain magnetic force, therefore, heating significantly reduces, and, compare with induction motor, its height reduces, weight lightens, and therefore, can significantly shorten fixed length.For example, even if fixed length is contracted to about the 6mm below 20% of rotor total height, retention force is still enough, and vibration that rotor 111 can not cause because of the heating in when running or transportation etc. and impact etc. come off from axle 130.Improving reliability by the sliding length that prolongs axle 130 and bearing portion 135, and guaranteeing to reduce the height of the whole Machinery Ministry of being formed by compression element 113 and electronic member 110 on the basis of the rotor 111 and the retention force of axle 130.
In addition, by shortening the fixed length of rotor 111, so just can improve the oil supply ability of the oil supply mechanism that is located at axle 130 inner (not shown).This is because the slip of bearing portion 135 and axle 130 is to make refrigerator oil 105 rise to the oil supply spiral fluted lift of axle 130 with the distance of refrigerator oil 105 bottom, and this lift significantly shortens.Like this, improve to the oil supply ability of the oil supply such as slide part of compression element 113 by the slide part between axle 130 and the bearing portion 135 and axle 130, therefore, reliability is improved.
Particularly the raising of said here oil supply ability is meant, under by lift-launch described adjustable frequency motor of present embodiment and situation with lower rotation running compressor 11, with the direct ratio that is reduced to of rotating speed, utilize the centrifugal force of axle and oil supply ability when carrying out oil supply will descend.But, as mentioned above,, under situation, also can stably supply with refrigerator oil 105 to slide part with lower rotation running compressor 11 by improving the oil supply ability.
Like this, when having realized preventing the coming off and improve the oil supply reliability of rotor 111,, in rotor 111, used permanent magnet in order to realize the miniaturization of short transverse, change the fixed length of rotor 111 and axle 130 then according to 50 hertz rotating speed, carry out affirmation experiment to oil mass.Consequently, be that 80% situation of rotor total height is compared with rotor 111 and axle 130 fixed length, under 50% situation, improved 3%, so win initial success aspect the oil mass improving to give to oil mass.In addition, under 30% situation, improved 5%, under 15% situation, improved 8% to oil mass to oil mass.
Whether in addition, improve in order to confirm the oil supply reliability of frequency-changeable compressor when the low rotation, the affirmation of giving oil mass of having carried out 20 hertz is down tested.Consequently, be that 80% situation of rotor total height is compared with rotor 111 and axle 130 fixed length, under 50% situation, improved 5%, so win initial success aspect the oil mass improving to give to oil mass.In addition, under 30% situation, improved 10%, under 15% situation, improved 15% to oil mass to oil mass.
As mentioned above, because of bearing extends in rotor, like this refrigerator oil 105 is promoted to and is used for the spiral fluted lift of oil supply and will shortens, the oil supply reliability is improved, when normal rotation and low rotation, all be made as below 50%, so just can win initial success, preferably below 30%, then can obtain certain effect.In addition, continue to shorten fixed length, it is contracted to about 15%, so, effect is then more obvious, and to the influence first meeting clue sometimes of the reliability that keeps rotor.When adopting, owing to must confirm fully that therefore, fixed length preferably is lower than 15% as far as possible,, because the reliability that keeps rotor to hold declines to a great extent, should avoid that this thing happens so if below 10%.
Particularly when low rotation, shorten refrigerator oil 105 is promoted to being used for the spiral fluted lift of oil supply, give oil mass very effective for improving.In recent years, energy-conservationization of refrigerated warehouse constantly developed, and adopted the compressor that turns round of the low rotation mode with energy-saving effect becoming main flow.But, when this low rotation, how to descend no matter for oil mass, in order to improve, in the oil supply structure of compressor inside, carried out various effort to oil mass.Wherein, as described in present embodiment, improve to this starting point of oil mass by shortening fixed length, except having whole height that reduces compressor and the effect that lowers the center of gravity, also have the effect that when low rotation, improves to oil mass, so it is a kind of technology with a plurality of beneficial effects.
As mentioned above, for the top that makes compressor 11 lower than the end face 23 of case body 1, the electronic member 110 of compressor 11 uses the frequency variator drive electric motor that turns round according to a plurality of rotating speeds that comprise the frequency higher than source power supply frequency at least, use permanent magnet 151 in the rotor 111 of electronic member 110, compressor 11 miniaturizations not only can be made like this, and the height of the recess 27 that compressor 11 is set can be dwindled.Therefore, in the taking in property of the lower floor of improving refrigerated warehouse, can dwindle the protuberance 30b institute projection of the accommodation space of recess 27 in the storehouse, thus pleasing aesthetic appearance, it is big that the accommodation space in the storehouse becomes, and taking in property also can significantly improve.
In addition, by in a plurality of salient pole portion 171 of the stator core 161 of the stator 112 that constitutes compressor 11, concentrating winding mode and magnet 151 to use rare earth element magnets to the salient pole of insulator winding around 162, so further compresses machine 11, and can reduce the height of the recess 27 that compressor 11 is set.Therefore, in the taking in property of the lower floor of improving refrigerated warehouse, can dwindle the protuberance 30b institute projection of accommodation space one side of recess 27 in the storehouse, thus pleasing aesthetic appearance, it is big that the accommodation space in the storehouse becomes, and taking in property also can significantly improve.
On the other hand, the compressor 11 of present embodiment, particularly compression element 113 adopt possess pressing chamber 134 and in pressing chamber 134 reciprocating motion type of pistons reciprocating 136, compression element 113 and electronic member 110 flexiblely are supported in the seal container 103 by spring 114.
As mentioned above, the member beyond the supporting structure portion by utilizing compression element 113 and electronic member 110 realizes reducing the purpose of compressor 11 height, like this, compares easy reduction vibration with rotary compressor etc.On structure, utilize the size of height dimension, even the reciprocating movement type compressor of the restriction in the application is arranged in the refrigerated warehouse of top configuration compressor formula, also can reduce the height of whole compressor.Particularly compressor 11 is configured under the situation on top, then can reduces the vibration that becomes big problem.Therefore, even vibration might be communicated to the refrigerated warehouse of the top configuration compressor formula of case body 1, also can eliminate user's sticky feeling, simultaneously, dwindle the height of the recess 27 that compressor 11 is set, thereby can provide the taking in property of a kind of refrigerated warehouse lower floor to be improved and refrigerated warehouse easy to use.
In addition, reciprocating movement type compressor is inner low pressure type, and electronic member 110 is provided in the below in the seal container 103, and by flexiblely being supported on the seal container 103 as the support 113a of support unit and spring 114.Compression element 113 is provided in the top of electronic member 110, and by as have resilient shapes high press fit pipe discharge tube 144 and be connected with seal container 103.On the support unit that will be configured in as the compression element 113 in vibration of compressor source by electronic component portion 110 in the seal container 103, therefore, compare with the situation of direct yielding support compression element 113, adopt this mode can make the distance of it and elastic supporting part farther, and, owing to weakened during the stator of the vibration that in compression element 113, produces by the strong electronic member 110 of rigidity, be communicated to the outside of compressor then from the support unit of compressor, therefore can reduce the vibration of compressor.
In addition, the discharge tube 144 rubber-like shapes of the high press fit pipe of conduct in the compression element 113, like this, the vibration of compression element 113 is discharged from 144 of pipes and weakens, and is conveyed to the outside of compressor then, therefore, can further reduce the vibration of compressor.
In addition, leg 106 in seal container 103 by as the support 113a of support unit and spring 114 and by yielding support.And the distance C apart between the lower end surface 113b of the center of gravity A of the Vertical direction of B ratio piston compressor and support unit between the surface of contact 106a of the center of gravity A of the Vertical direction of compressor and the leg of compressor 106 and elastic member 107 is short.Like this, the amplitude of the vibration of compressor is minimum near center of gravity A, become big along with then vibrating away from center of gravity, whole compressor is vibrated round center of gravity, therefore, below the support unit of supporting machinery portion, compare, diminish near the Oscillation Amplitude of the surface of contact of the leg 106 of center of gravity and elastic member 107, and then can reduce vibration and be conveyed to refrigerated warehouse therefore.
In addition, use permanent magnet 151 in the rotor 111, reduce the height of rotor 111, and stator 112 uses salient poles to concentrate winding type to reduce the height of stator 112, thereby can reduce the center of gravity of whole electronic member 110.
In addition, adopt at stator 112 under the situation of Distributed Winding, because winding exposes upward from the assembly department that cylinder body group 133 is installed on the stator 112, therefore, the size of foot section that must make cylinder body group 133 is greater than the size of exposing of winding.But stator 112 adopts salient pole to concentrate winding type, so just can shorten as the foot section that cylinder body group 133 is installed in the cylinder body group 133 of the assembly department on the stator 112, can also reduce the center of gravity of compression element.
And because of prolonging the extended length of bearing portion 135 in rotor recesses 111a of cylinder body group 133, it is lower that cylinder body group 133 is descended, thereby can lower the center of gravity.
As mentioned above, the center of gravity A of the Machinery Ministry by further reduction compressor inside, make the surface of contact 106 of the leg 106 equipped in the seal container 103 as the compressor outside and elastic member 107 be positioned at the position of top more then, like this, become littler apart from B between the surface of contact of center of gravity A and leg 106 and elastic member 107, be conveyed to refrigerated warehouse from compressor thereby can further reduce vibration.
This is not only in order to satisfy the requirement in miniaturization that the whole height of the compressor of compressor configuration in the such refrigerated warehouse in top is tried one's best, and, this in the refrigerated warehouse that must realize low vibration, low noise simultaneously be reuse especially a bit.Make the factor of compressor miniaturization varied, aspect internal structure, rotor 111 uses permanent magnet 151, the maintenance effect of the rotor 111 of retainer shaft 130, thereby bearing portion 135 is extended in rotor more reduce internal height, configuration aspects externally, raising leg 106 puts the putting surface on elastic member 107, even also can realize the miniaturization of whole height under the state that is provided with in being arranged on refrigerated warehouse, and can realize centre of gravity and the high low mode of vibration light duty compressor of supporting stability.
In addition, according to present embodiment, the surface of contact 106a of the leg of compressor and elastic member is positioned at the top than the lower end surface 113b of support unit.Like this, the vibration of compressor is passed on through support unit towards the below from the Machinery Ministry as vibration generation source, and its direction becomes up afterwards, passes on to elastic member 107 by leg 106.So because the reception and registration route of vibration becomes complicated, therefore, vibration is further weakened in passing on route, and, the distance between the surface of contact 106a of leg 106 from support unit to compressor and elastic member 107 can also be prolonged.Therefore, particularly the vibration reception and registration owing to high-frequency region is weakened, the Oscillation Amplitude of the surface of contact 106a of leg 106 and elastic member 107 diminishes, therefore, can also reduce vibration and being conveyed to refrigerated warehouse, thereby the high-quality refrigerated warehouse of the noise that no uncomfortable vibration and friction cause can be provided.
In addition, leg 106 has the stationary plane 106b that is fixed on the seal container 103 and curved part 106c up, card and ends 106d below the elastic member configuration of elastic member.Like this, leg is positioned on the stationary plane 106b of seal container 103 bottoms of good operability such as bonding, the configuration elastic member and be positioned at more near below the elastic member configuration of center of gravity, can form curved part like this by the bending of simple foot section, therefore make and be very easy to.
In addition, leg 106 is fixed on stationary plane 106b on the seal container 103 and is positioned at as the downside of the lower end surface 113b of the stationary plane of the support unit 113a of container 101 down.As the vibration of the compression element 113 in vibration of compressor source by electronic member 110, but also by being supported the spring 114 that parts 113a is supported, in seal container 103, also be communicated to and be positioned at from adding the vibration source stationary plane of the support unit 113a at position farthest.Therefore, vibration is significantly weakened.
And, leg 106 from stationary plane roughly after substantially horizontal stretches, erect vertically upward by forming curved part 106c, once more roughly after the substantially horizontal bending, form 106d below the elastic member configuration, therefore, until the surface of contact 106a of it and elastic member 107, the reception and registration route of vibration is complicated and elongated, is weakened so vibration is passed on.In addition, because 106d is positioned at the position of center of gravity A of the Vertical direction of more close compressor below the configuration of the elastic member of elastic member 107, simultaneously, the length of elastic member 107 is long enough also, therefore, in elastic member 107, vibrate and also can fully be weakened, and can fully reduce the vibration that is communicated to refrigerated warehouse, thereby the high-quality refrigerated warehouse of the noise that no uncomfortable vibration and friction cause can be provided.
In addition, by forming curved part 106c, then can increase from leg 106 and be fixed on stationary plane on the seal container 103 distance below the elastic member configuration of configuration elastic member 107, elongated from the distance that the vibration of stationary plane 106b is passed on, therefore, particularly the reception and registration in the zone that frequency is high is weakened, thereby can further reduce the vibration that is communicated to refrigerated warehouse.Therefore, manufacturing process is simple, and can reduce the vibration that is communicated to refrigerated warehouse, thereby high-grade refrigerated warehouse of the noise that no uncomfortable vibration and friction risen can be provided with low cost.
And, the rib 106e that curved part 106c is set on leg 106 and extends across 106d below the elastic member configuration, like this, the rigidity of leg 106 strengthens, the intrinsic value raising that leg 106 itself has.Simultaneously, because 106 itself become and be difficult for vibration, therefore, can further reduce the vibration that conveys to elastic member, refrigerated warehouse body from the stationary plane of seal container 103 through foot section.In addition, just can form rib, because the intensity enhancing of foot section, impact because of the transportation of refrigerated warehouse and to cause foot section such individual problem that deforms also can improve by pressurization easy to manufacture.
Therefore, manufacturing process is easy, and can reduce to the vibration of refrigerated warehouse and pass on, thereby can provide no uncomfortable vibration and high-grade refrigerated warehouse of the caused noise of friction with low cost.
As mentioned above, as the miniaturization factor of the short transverse of compressor 11, distinguish from big aspect and then to comprise viewpoint corresponding and the viewpoint corresponding with compression element 113 with electronic member 110.Adopt this two factors simultaneously, still keep wherein any one factor, reduce the required value of rigidity and other characteristic or the viewpoint on the quality by coordination and select to get final product.
For example, the durable reliability of the precision of not having relatively high expectations, and mainly be difficult to become the method for electronic member 110 height of the big reason of noise, vibration with reduction, compressor 11 is being configured in the structure on top, in the influence of controlling noise, vibration, realizing also having advantage aspect the miniaturization.
On the other hand,, also be expected to realize miniaturization, and have the high advantage of cost performance with under the situation of achieving the goal in the miniaturization by compression element 113 with low cost.
As mentioned above, since compressor 11 is configured in the top of the case body 1 of refrigerated warehouse, and the position of close user's ear, so, will consider noise and vibration more than original refrigerated warehouse, realize that by the height that reduces compressor 11 key of miniaturization is can be to the combination of the noise of refrigerated warehouse, miniaturization factor that vibration exerts an influence.In the structure of structure that supports electronic member 110, compression element 113 and supporting seal container 103, in controlling noise, vibration, take various ways to reduce height, the design of height of perhaps considering to reduce the baneful influence that noise, vibration produced is also very effective.
Below, if be conceived to the accommodation space 29a of the superiors and the second layer accommodation space 30a of refrigerated warehouse, so, the inside of the accommodation space 29a of the superiors is the place that hand is difficult to get at, even the most inboard of the space 29a of the superiors stopped up by protuberance 30b, but from the usability aspect, because the degree of depth shoals, collecting articles such as food are in the scope that hand can get at, therefore, can prevent that food from putting expiredly for a long time, usability improves on the contrary.On the other hand, if protuberance 30b is outstanding to second layer accommodation space 30a, so when opening cold storage room revolving door 5, protuberance 30b will be heaved in sight at once, have a strong impact on outward appearance, simultaneously, in the inside of food being put into second layer accommodation space 30a or when therefrom taking out, food etc. is obstructed and is difficult to pick and place halfway, and is therefore very inconvenient.But, the lattice bottoms 30d that makes the accommodation space 29a of the superiors with as the horizontal plane of the protuberance 30b of the indoor side diapire face of recess 27 substantially on same horizontal plane, like this, from seeing that in appearance they roughly link to each other to continuity, can not feel that protuberance 30b's is outstanding, so also can under the state that outward appearance is improved, compressor 11 be housed in the recess 27 of regulation.
In addition, imperceptible protuberance 30b's is outstanding, and outward appearance improves, and the collecting article of the food highly lower than the front of second layer accommodation space 30a etc. can successfully put the inside into and therefrom take out, and therefore uses easily.
Size more specifically, for the distance of end face 23 to the lattice bottom 30d of the accommodation space 29a of the superiors, heat insulation wall thickness in end face 23 and the storehouse is 25mm, the height of the accommodation space 29a of the superiors is that 140mm is (because be the topmost part in the storehouse, if considering pull height obliquely is that 123mm, diameter are that 350 milliliters of standard can dixie cups of 66mm are determined the size of taking out, then be 140mm), if design the lattice plate thickness, so just become 175mm according to 10mm.If the thickness of the face that the is provided with 28b of the compressor 11 of recess 27 is 20mm, the compressor 11 and gap of face 28b is set and the gap between top cover 34 inner faces is respectively 3mm, the thickness of top cover 34 is 2mm, the indoor side diapire face 30c that makes the lattice bottoms 30d of the accommodation space 29a of the superiors and recess 27 is roughly on same horizontal plane, so, the maximum height that can be housed in the compressor 11 in the recess 27 is 147mm.
In contrast, more specifically see the size of compressor 11, the following container 101 of seal container 103 adds up to 7mm with the thickness of upper container 102, for the required height of curvature that obtains upper container 102 is 14mm, cylinder body group 133 has the top of pressing chamber 134 to be divided into 39mm, distance has stator 112 attachment faces of bearing portion 135 1 sides to be of a size of 20mm, the height of stator 112 is 26mm, the lower end of stator 112 to the lower end of rotor 111 is of a size of 9mm, the lower end of rotor 111 is 9mm to the distance of refrigerator oil 105, and the height of refrigerator oil 105 is 20mm.These sizes add up to 144mm, and this is the height space in the described recess 27 that can accommodate in the present embodiment.
As mentioned above, because the height of this compressor probably is more than the 190mm in the refrigerated warehouse of original normal capacity, therefore, can realize the miniaturization of large scale height.Particularly by using the adjustable frequency motor that has used permanent magnet 151 in the rotor 111 that turns round according to a plurality of rotating speeds that comprise the frequency higher than source power supply, like this, just can constitute the compression element 113 and the electronic member 110 of compressor 11 according to suitable dimensions, and can in the rigidity of the noise that keeps being used for better keeping seal container 103, compressor 11 be installed in the recess 27 of regulation.In addition, by making as the horizontal plane of the protuberance 30b of the indoor side diapire face of recess 27 substantially on same horizontal plane, like this, just can provide one to link to each other to continuity from seeing in appearance roughly, imperceptible protuberance 30b's is outstanding, and rakish refrigerated warehouse.
In addition, miniaturization factor by adopting short transverse is as the main body of improving electronic member 110, like this, how to guarantee that the noise of following the change of compression element 113 specifications to be produced, the reliability problems of vibration aspect are alleviated, therefore, compressor 11 is configured in refrigerated warehouse top, this is for the refrigerated warehouse that has noise, vibration, be the problem that can solve noise, vibration, realize the effective means of the miniaturization of height simultaneously.
In the present embodiment, the ground height of case body 1, promptly end face 23 is below the 1800mm apart from the height on ground.This maximum height that highly is women according to standard heights upwards stretches scope that arm gets at is set.
If end face 23 is apart from the aspect ratio 1800mm height on ground, so, do not dwindle even increase the height of compressor 11, still can it be installed in the recess 27 at an easy rate, on the contrary, the usability on refrigerated warehouse top becomes poorer, and what be difficult to satisfy simultaneously whole refrigerated warehouse takes in efficient and usability.
In the present embodiment, by the height of end face 23 apart from ground is controlled at below the 1800mm, at first, consider the usability in the refrigerated warehouse, simultaneously the height of compressor 11 is dwindled as far as possible, the advantage of the useful space in the performance control infringement refrigerated warehouse can improve to greatest extent and take in efficient to greatest extent.
(mode of execution 5)
Figure 20 is the summary section of refrigerated warehouse in the embodiments of the present invention 5.
In addition, the structure for identical with mode of execution 4 marks identical symbol and omits detailed explanation.
For will not setting forth one by one,, include same content so long as not producing item improperly to using present embodiment with general structure and the action effect of mode of execution 4.
In the drawings, at the end face 200 of case body 1 ventilation duct 201 that is communicated with recess 27 is set just down, be positioned at this mode according to the top 203 of compressor 11, compressor 11 be arranged on the face that the is provided with 28b of recess 27 than following 202 of ventilation duct 201 high and lower positions than end face 200.Be provided with condensed device 204 on the top of ventilation duct 201, condensed device 204 is communicated with discharge pipe arrangement 31.The end face 200 of ventilation duct 201 and the top cover 34 of recess 27 top roughly on same horizontal plane perhaps constitutes an integral body.In addition, ventilation duct 201 sucks air from being taken into mouthfuls 205, and by condensed device 204, be provided with the recess 27 of compressor 11, discharge from the exhaust port 206 of top cover 34 then.
In above-mentioned structure, because it is low and than following 202 of ventilation duct 201 high positions that the top of compressor 11 is configured in end face 200 than case body 1, therefore, accommodate the outstanding size of recess 27 side in refrigerated warehouse of compressor 11, promptly, the outstanding size decreases of protuberance 30b, thus can effectively utilize the interior space of refrigerated warehouse more.
In addition, in the total altitude range of the height of the height of ventilation duct 201 and recess 27, get final product with the mode design of the height of accommodating compressor 11.Therefore, for example in large-scale refrigerated warehouse, even the factor of the miniaturization in the mode of execution 1 increases, and must adopt aspect the refrigerating capacity under the situation of larger-size compressor, still can expand the degrees of freedom of design, and, in large-scale refrigerated warehouse, also can be easily provided in the high refrigerated warehouse of taking in property that compressor 11 is taken at the end face rear.
On the other hand, because the required ventilation duct 201 of cooling of compressor 11 is configured in the storehouse of refrigerated warehouse on the end face 200 that hand is difficult to get at, therefore, it also can effectively utilize except being used for taking near end face 200.In addition, because it is low and than following 202 of ventilation duct 201 high positions that the top 203 of compressor 11 is configured in end face 200 than case body 1, therefore, the top of compressor 11 just is configured in the projection plane of direction of ventilation of ventilation duct 201, the end face 203 that temperature is the highest in compressor 11 is cooled off effectively, and characteristic, the reliability of compressor 11 also are improved.In addition, constitute condensed device 204 by the inside at ventilation duct 201, like this, the radiating effect of condensed device 204 improves, thereby can improve the efficient of system.
Below, the accommodation space 29a of the superiors and the second layer accommodation space 30a of elaboration refrigerated warehouse.The the inside of the accommodation space 29a of the superiors is the place that hand is difficult to get at, even the inside of the accommodation space 29a of the superiors is stopped up by protuberance 30b, but aspect usability, because the degree of depth shoals, collecting articles such as food are in the scope that hand can access, and therefore, can prevent to put expired for a long time, like this, usability improves on the contrary.On the other hand, if protuberance 30b is side-prominent to second layer accommodation space 30a one, so, when opening cold storage room revolving door 5, protuberance 30b will be heaved in sight at once, has a strong impact on outward appearance, simultaneously, in the inside of food being put into second layer accommodation space 30a or in therefrom taking out, food etc. is obstructed and is difficult to pick and place halfway, and is therefore very inconvenient.But, the lattice bottoms 30d that makes the accommodation space 29a of the superiors with as the indoor side diapire face 30c of recess 27 substantially on same horizontal plane, like this, link to each other to continuity from seeing in appearance roughly, therefore imperceptible protuberance 30b's is outstanding, so also can under the state that outward appearance is improved, compressor be housed in the recess 27 of regulation.
In addition, here the situation of said cardinal principle on same horizontal plane has, and the indoor side diapire face 30c of recess 27 and the lattice of the accommodation space 29a of the superiors bottom 30d is substantially at the indoor side of the situation on the same horizontal plane, recess 27 diapire face 30c with as the upside of the lattice of the underpart, space of the accommodation space 29a of the superiors situation on same horizontal plane substantially.By making the case that forms the accommodation space 29a of the superiors near the diapire face 30c of the indoor side of recess 27, like this, from seeing that in appearance they roughly link to each other to continuity, therefore imperceptible protuberance 30b's is outstanding, so also can under the state that outward appearance is improved, compressor be housed in the recess 27 of regulation.
In addition, can successfully put the inside into and take out, therefore use easily from the inside than the low collecting articles such as food of height between second layer accommodation space 30a mouthful.
And, because the accommodation space 29a of the superiors is in higher position, be difficult to take in, therefore, if for the height that reduces the container as far as possible it is designed to take in the minimum constructive height of 350 milliliters of standard can dixie cups (height 123mm), so, the container height setting of the accommodation space 29a of the superiors is the 125mm that the 2mm gap is arranged with top, so just can utilize the refrigerated warehouse inner space most effectively.
In the refrigerated warehouse shown in the figure, if size more specifically, for from the lattice of the accommodation space 29a of the superiors bottom 30d to the end face 200 that comprises ventilation duct 201 and the distance between above the top cover 34, if the thickness of slab according to the end face 200 that forms ventilation duct 201 is 2mm, the internal height of ventilation duct 201 is 18mm, heat insulation wall thickness in following 202 and the storehouse of ventilation duct 201 is 25mm, the height of the accommodation space 29a of the superiors is the 125mm of minimum constructive height of the tinned drink that can take in 350ml, the lattice plate thickness is that this mode of 10mm designs, so, it just becomes 180mm.The thickness of the face that the is provided with 28b of the compressor 11 of recess 27 is 20mm, compressor 11 and the gap of face 28b is set and the inner face of top cover 34 between the gap respectively be 3mm, the thickness of top cover 34 is 2mm, if make the lattice bottom 30d of the accommodation space 29a of the superiors, the indoor side diapire face 30c of recess 27 is substantially on same horizontal plane, so, the maximum height of the compressor 11 that can accommodate within the total height of recess 27 and ventilation duct 201 is 152mm, if use the compressor 11 of the height dimension shown in the mode of execution 1 as 144mm, so, this size can enough be accommodated design, and can be easy to satisfy corresponding with the maximization of refrigerated warehouse and requirement that compressor size is maximized.
Promptly, realized that compressor 11 gos deep into the containing space in the storehouse and the accommodation space coordination in appearance of the superiors, usually usability is relatively poor, therefore, in the relatively empty accommodation space 29a of the superiors of accommodation space, the poor especially rear space of usability is arranged in compressor and accommodates recess 27, and in easy-to-use front space, can endways arrangement be accommodated in and often once take in a plurality of tinned drinks in the food that is incorporated in the refrigerated warehouse, therefore, the quantity of taking in of whole cold storage room also increases, and the accommodation space 29a of the superiors also can be effectively utilized.
As mentioned above, the ventilation duct 201 that is communicated with recess 27 is designed to the end face 200 of refrigerated warehouse body 1, the top 203 of compressor 11 is lower and than following 202 height of ventilation duct 201 than the end face 200 of refrigerated warehouse body 1, like this, required ventilation duct 201 such as the cooling of compressor 11 grades be configured in that hand is difficult to get at and the end face 200 of usability difference near, therefore, not only can effectively near the of end face 200 be used as taking in purposes purposes in addition, and the taking in property of refrigerated warehouse inside also will improve.In addition, because it is low and than following 202 of ventilation duct 201 high positions that the top 203 of compressor 11 is configured in end face 200 than refrigerated warehouse body 1, therefore, the top 203 that temperature is the highest in compressor 11 is effectively cooled off, and characteristic, the reliability of compressor 11 also are improved.
(mode of execution 6)
Figure 21 is the generalized schematic of the refrigerated warehouse in the embodiments of the present invention 6, and Figure 22 is the solubility curve figure of refrigeration agent and refrigerator oil in the same mode of execution.
In refrigerated warehouse body 601, the cold storage room 602 in the zone that temperature is higher is configured in the top, and the refrigerating chamber 604 in the zone that temperature is lower is configured in the below, has so-called refrigeration type down.Cold storage room 602 and refrigerating chamber 604 for example adopt the such thermal-protective material of polyurethane with heat insulation on every side.In addition, picking and placeing of collecting article such as food is to be undertaken by insulated door not shown in the figures.
Stored refrigerated in order to carry out, cold storage room 602 is set to 1 ℃～5 ℃ usually, in order to improve freshness, for example also is set at-3 ℃～0 ℃ lower slightly temperature sometimes, and the user can freely be switched above-mentioned temperature according to collecting article sometimes and be set.In addition, fresh-keeping for wine or root vegetable etc. is carried out, for example, be set at temperature higher slightly about 10 ℃ sometimes.
In order to carry out freezing preservation, refrigerating chamber 4 is set to-22 ℃～-18 ℃ usually, but in order to improve freshness, for example also is set at-30 ℃～-25 ℃ lower temperature sometimes.
Formation machine room 611 on refrigerated warehouse body 601, is constituting the tomography shape than first top part, the 613 low second set top parts 615 of position of the back side 614 1 sides of refrigerated warehouse outer container at underrun first top part 613 of machine room 611.Condensed device 616 is provided in the superjacent air space of first top part 613, compressor 612 is provided in the superjacent air space of second top part 615, is fixed on the refrigerated warehouse body 1 by screw etc. as the mechanical chamber cap 617 that covers condensed device 616 and the resin cap of compressor 612.
Herein, because vaporizer 609 is fixed on the rear of refrigerating chamber 604, therefore, the relation of the short transverse of compressor 612 and vaporizer 609 has just become configuration compressor 612 on the part of the end face of refrigerated warehouse body 601, and near the part the bottom relation of configuration vaporizer 609, and the return route that flows to the refrigeration agent in the freeze cycle of compressor 612 from vaporizer 609 has the relation that promotes a lot of distances in short transverse.
Freeze cycle 618 is by equipping compressor 612 and condensed device 616 successively and being formed as capillary tube 619 and vaporizer 609 these a series of refrigerant flow paths of decompressor.
This compressor 612 is by the piston reciprocating movement type compressor that to-and-fro motion is compressed refrigeration agent in cylinder body.
In addition, the zone of machine room 611 is made of first top part 613 and second top part 615 and mechanical chamber cap 617.
Wherein, in refrigerated warehouse body 601, under the situation of the freeze cycle 618 of using three-way valve and switching valve, these functional parts also are provided in the machine room 611 sometimes.
In addition, in the present embodiment, use capillary tube 619, but also use the electric expansion valve that freely to control the refrigerant flow that drives by stepping motor sometimes as the decompressor that constitutes freeze cycle 18.
The operation of the refrigerated warehouse that constitutes adopting aforesaid way below, effect describe.
The refrigeration agent of the High Temperature High Pressure of discharging by the operation of compressor 612 in condensed device 616 with refrigerated warehouse body 601 above air carry out heat exchange, heat radiation and condensing liquefaction arrive capillary tube 619 then.Afterwards, on one side in capillary tube 619, be depressurized with suction pipe 620 heat exchanges on one side, and arrive vaporizer 609.
By the effect of cooling fan (not shown), because of becoming the lower cool air of temperature, the evaporation of the refrigeration agent in the vaporizer 609 flows in cold storage room 602 and the refrigerating chamber 604, begin each space is cooled off.In vaporizer 609, carry out after the refrigeration agent of heat exchange by suction pipe 620 with air in the refrigerated warehouse, and together be inhaled in the compressor 612 with refrigerator oil.
As mentioned above, in freeze cycle 618, when compressor 612 being provided in than vaporizer 609 more by the position of top, particularly as described in the present embodiment, compressor 612 is configured on the part of end face of refrigerated warehouse body 1, vaporizer is configured near the bottom of refrigerated warehouse body 601, the range of lift of return route that flows to the refrigeration agent of compressor 612 from vaporizer 609 becomes under the big situation, together be discharged in the freeze cycle 618 from compressor 612 and refrigeration agent, and how the refrigerator oil that is trapped in the liquid-storage container that does not have special expression among the figure in the vaporizer 609 returns compressor 612 by suction pipe 620, and this is the important factors of the reliability of relevant compressor 612.
In addition, the characteristic of returning for the refrigerator oil in the lifting pipe arrangement also has the influence from the refrigerating machine oil viscosity, but well-known, flow velocity and its relation of the refrigeration agent in the pipe arrangement are bigger.
But, flow velocity in order to ensure refrigeration agent, if increase refrigerating capacity by inflator volume that increases compressor 612 and the rotating speed that improves compressor 612, thereby guarantee the flow velocity of refrigeration agent, so, will cause the evaporating temperature of vaporizer 609 to descend, it is big that the compression ratio of compressor 612 becomes, power consumption increases, and therefore, solves very difficulty by these means.
Therefore, in the present embodiment, as the refrigeration agent of freeze cycle 618 and use the isobutane of hydrocarbon coolant.
(table 1) expression isobutane and original replacement freon refrigerant be the physics value of R134a in-30 ℃ saturated solution for example.
Proportion (kg/m 3) Latent heat of vaporization (kJ/kg) The refrigerating capacity of per unit volume (proportion * latent heat of vaporization) (kJ/m 3)
Isobutane ?1.360 ?382.91 ?520.8
?R134a ?4.426 ?219.52 ?971.6
?CO 2 ?37.908 ?303.48 ?11258.5
Shown in (table 1), the refrigerating capacity of the per unit volume of isobutane is 520.8kJ, and is opposite with it, and the refrigerating capacity of the per unit volume of the R134a of replacement freon (Freon) refrigeration agent originally is 971.6kJ, compare with R134a, the refrigerating capacity of the per unit volume of isobutane approximately is its 1/2.Therefore, for the refrigerating capacity that makes compressor 612 equates that with original R134a the inflator volume of compressor 612 increases to about 2 times, the piston discharge capacity of the unit time of compressor 612 increases to about 2 times too.That is, because of the volume flowrate of unit time of refrigeration agent increases, therefore, the flow velocity during compressor 612 runnings in the pipe arrangement increases to 2 times.
In addition, as the CO of natural refrigeration agent 2The refrigerating capacity of per unit volume be 11258.5kJ, isobutane and CO 2Compare, the refrigerating capacity of per unit volume approximately is its 1/20.Therefore, refrigerating capacity and the CO in order to make compressor 612 2Equate that the inflator volume of compressor 612 approximately increases to 20 times, the piston discharge capacity of the unit time of compressor 612 approximately increases to 20 times too.That is, because of the volume flowrate of unit time of refrigeration agent increases, therefore, the flow velocity during compressor 612 runnings in the pipe arrangement increases to 20 times.
Like this, compressor 612 is configured in vaporizer 609 above situation under, also can make the refrigerator oils that are trapped in the vaporizer 609 return compressor 612 rapidly, and can reduce because of the refrigerator oil in the compressor 612 is not enough and cause compressors 612 that damage etc. takes place.
In addition, when utilizing defrosting motor (not shown) that vaporizer 609 is defrosted, the refrigeration agent that is trapped in the vaporizer 609 also together is returned compressor 612 by the thermosiphon effect and the refrigeration agent of refrigeration agent.But, following these problems have also appearred, compressor 612 is provided in vaporizer 609 above, under the elongated situation of the total length of the suction pipe 620 that promotes pipe arrangement, if particularly refrigeration agent is little to the solubility of refrigerator oil, so, the amount of returning that together is returned the refrigerator oil of compressor 612 with refrigeration agent will reduce.
Therefore, as the refrigerator oil of freeze cycle 618 and use the mineral oil good with the isobutane intermiscibility.
Figure 22 is the more existing coordinate diagram of the solubility curve when combination isobutane and mineral oil when for example making up R134a and ester oil and in the present embodiment.Abscissa is the temperature (evaporating temperature) of the refrigeration agent in the vaporizer 609, and y coordinate is the solubility (quality %) of dissolving in the refrigeration agent in the refrigerator oil.As seen from the figure, along with the rising of evaporating temperatures in the vaporizer 609, solubility all increases under above-mentioned two kinds of situations, and evaporating temperature high more both difference that becomes is big more.Generally, the defrosting of vaporizer 609 is after attached to the dissolving of the frost on the vaporizer 609, for safety carries out, and becomes about 10 ℃ until vaporizer 609.Therefore, if relatively the temperature of vaporizer 609 is 10 ℃ of this point, so, compare with the existing situation of combination R134a and ester oil, solubility approximately is increased to 50% under isobutane and the mineral oil condition being used in combination.
Like this, compressor 612 is provided in vaporizer 609 above, under the situation about increasing as the total length of the suction pipe 620 that promotes pipe arrangement, when defrosting, utilize the thermosiphon effect of refrigeration agent, also can increase the amount of returning of together returning the refrigerator oil of compressor 612 with refrigeration agent from vaporizer 609.
Wherein, if compressor is the internal high pressure formula, refrigerator oil and discharging refrigerant in the atomizing of the inner space of seal container together are discharged from outside the compressor, therefore, the compressor 612 of present embodiment adopts inner low pressure type, like this, can control the refrigerating machine oil mass of discharging from compressor 612 in freeze cycle 618, therefore, can reduce the delay absolute magnitude of the refrigerator oil in the refrigerant piping of the property returned that is related to refrigerator oil.In addition, can further reduce the damage of the compressor 612 that causes because of the deficiency of the refrigerator oil in the compressor 612 etc., and can suppress to reduce because of the delay refrigerator oil in the refrigerant piping causes the efficient of the heat exchanger of vaporizer 609 or condensed device 616 etc.
In addition, reduce or use vacuum heat insulation material etc. that the heat-shielding performance of refrigerated warehouse body 601 is improved in the coefficient of overall heat transmission because of the polyurethane that constitutes refrigerated warehouse body 601, need to reduce under the situation of compressor 612 performances, as mentioned above, by being used in combination the compressor 612 of isobutane and mineral oil and inner low pressure type, then can guarantee required refrigerator oil in the compressor 612 at an easy rate.
In addition, in the present embodiment,, therefore, compare, can manage gap between piston and the cylinder body according to higher precision with rotary compressor because compressor uses the reciprocating motion type compressor that comes compressed refrigerant by piston to-and-fro motion in cylinder body.Like this, between packed-piston and cylinder body, can not guarantee sufficient sealing even do not use a large amount of refrigerator oils yet, and can reduce the refrigerating machine oil mass that together is discharged from the refrigeration agent of discharging via cylinder body, therefore, not only can reduce the refrigerating machine oil mass that is discharged from from compressor, and, more can reduce because of the deficiency of the refrigerator oil in the compressor 612 causes compressor 612 damage etc. takes place.
By being used in combination the above-mentioned effect of compressor isobutane and mineral oil and inner low-pressure type, even compressor 612 is provided in vaporizer 609 above, and increase under the situation of the distance between compressor 612 and the vaporizer 609, for example, as described in present embodiment, compressor 612 is configured in the part of the end face of refrigerated warehouse body 601, vaporizer is configured near the bottom of refrigerated warehouse body 601, refrigeration agent returns the recurrence route of compressor 612 from vaporizer 609 climb increases, and also can fully guarantee the reliability of refrigerated warehouse.
Like this, in refrigerated warehouse body 601, be provided with under the situation of the different a plurality of storerooms of temperature range, vaporizer 609 can be arranged in the storeroom storeroom in addition of the superiors, when compressor 612 runnings, by making vaporizer 609 away from compressor 612 that becomes high temperature and condensed device 616 etc., like this, not only can reduce the cooling loss that influences the vaporizer 609 that is caused from the heat extraction of high-temperature portion, can also maximally utilise the refrigerating capacity of vaporizer 609, therefore, can reduce power consumption.
(mode of execution 7)
Figure 23 is the summary section of refrigerated warehouse in the embodiments of the present invention 7, Figure 24 is the summary back elevation of refrigerated warehouse in the same mode of execution, Figure 25 is the summary parts unfolded drawing of refrigerated warehouse in the same mode of execution, Figure 26 is the approximate three-dimensional map of the suction pipe arrangement major component of refrigerated warehouse in the same mode of execution, Figure 27 is the summary section of the compressor that carries in the refrigerated warehouse in the same mode of execution, Figure 28 is the summary section of the carrying state of refrigerated warehouse in the same mode of execution, and Figure 29 is the summary section of the compressor when refrigerated warehouse is carried in the same mode of execution.
In the drawings, heat insulating box 701 possesses resinites such as ABS is carried out the interior case 713 of vacuum forming and use the heat insulation wall of injecting foam-filled insulator 715 in the space that outer container 714 constituted of metallic material such as pre-coated steel plate and forming.Insulator 715 for example uses RPUF or phenolphthalein foam or styrenic foams etc.In addition, if the cyclopentane that uses hydrocarbon system is so, then better from the viewpoint that prevents to warm as foamed material.
Heat insulating box 701 is divided into a plurality of area of insulation, and top is the rotation gate-type, and the bottom is the structure of drawing and pulling type.The refrigerating chamber 704 of the switching chamber 716 of the drawing and pulling type that is cold storage room 702 from top to bottom, is set up in parallel and the vegetable compartment 703 of ice making compartment 717 and drawing and pulling type and drawing and pulling type.By packing ring 718 insulated door is set respectively in each area of insulation.Be cold storage room revolving door 705, switching chamber sliding door 719, ice making compartment sliding door 720, vegetables sliding door 706, refrigerating chamber sliding door 707 from top to bottom.
Door pocket 721 is set in cold storage room revolving door 705 is provided with a plurality of lattice 722 of taking in as accommodation space, in refrigerated warehouse.In addition, the foot of cold storage room 702 is being provided with storage box 723.
In addition, the outer container 714 of heat insulating box 701 be by sealing assembling with end face the steel plate bending that is cut off of the inside part machine room plate 728 that becomes shell 724 and the bottom panel 725 and the backplate 726 of U word shape and constitute the recess 727 that makes end face rear depression constitute.Machine room plate 728 processes type by the pull and stretch of steel plate, adopts the R shape for improving the processability turn of bilge.By this R shape, guarantee the branch of foam-filled insulator 715 or the passage of fluidic junction, improve liquidity, and can prevent the space that lack of fill produces.
Even machine room plate 728 adopts the configuration portion of compressor 711 the darkest, pull and stretch then shallow more shape in two ends also can be guaranteed the branch of foam-filled insulator 715 or the passage of fluidic junction, and improve liquidity more to the left and right.
And, because machine room plate 728 adopts pull and stretch processing, and it is few to be used for foam-filled sealed department, therefore aspect engineering quantity, has advantage, and, if constitute same shape, so only need less drawing die expense to get final product, and can improve the machining accuracy and the dimensional accuracy of no pull and stretch wrinkle by sheet metal processing.
In addition, machine room plate 728 is provided with a plurality of pore (not shown) on each face, can not hinder outward appearance and Nei Guan like this, and can prevent to cause producing the space or deform because of residual air.
In addition, bottom panel 725 and backplate 726 are provided with the handle that the recess that can be hooked by finger tip constitutes.In the position extremely central from the place ahead, bottom surface, can hook from the place ahead in order to make finger tip, according to fixing interval bottom surface handle 729 is set in two places.The high as far as possible place of the topmost part of plate 726 is provided with back side handle 730 for finger tip can upwards be hooked at interval according to the rules, two places overleaf.
In addition, interior case 713 is than the little circle of outer container 714, and the back side is the inside depression to the inside, by it being assembled in the outer container 714, forms by the space of foam-filled insulator 715 in heat insulating box 701.Therefore, one is also constituted heat insulation wall by foam-filled insulator 715 about machine room plate 728, to guarantee intensity.And bottom surface handle 729 and back side handle 730 are also by being come proof strength by foam-filled insulator 715.
In addition, freeze cycle is the condensed device (not shown) that is provided with by the machine room fan 731 that yielding support is provided in compressor 711 in the recess 27, near setting compressor 711, in the end face of shell 724 and the side of recess 727 or bottom panel 725 bottoms and shell 724 etc., the capillary tube 732 as decompressor, dewatered exsiccator (not shown), at the back side of vegetable compartment 703 and refrigerating chamber 704, the vaporizer of establishing at its next door configuration cooling fan 708 709, suck pipe arrangement 733 and connect into annular and constitute.
Recess 727 is provided with the top cover 734 that is fixed by screw etc., and it is used for taking in compressor 711 and condensed device (not shown) and machine room fan and exsiccator and the pipe arrangement etc. that are arranged in the recess 727.
Capillary tube 732 is copper pipes that length equates substantially with sucking pipe arrangement 733, and except the end, but other parts are soldered in the mode of heat exchange.Capillary tube 732 uses the bigger thin footpath steel pipe of internal flow resistance for decompression, and its internal diameter is the length of 0.6mm to 1.0mm, and regulates the decompression amount that designs.In order to reduce the pressure loss, suck pipe arrangement 733 and use the steel pipe in big footpath, its internal diameter is designed to 6.35mm to 7.94mm.In addition,, make it be compressed into the shape that crawls, and form the portion of crawling at the back side of refrigerated warehouse 702 in order to ensure the length of heat exchange department 735, the centre of case 713 and backplate 726 in being configured in, and be embedded in the insulator 715.Capillary tube 732 is given prominence to from vegetable compartment 703 rear positions of interior case 713 with an end that sucks pipe arrangement 733 and is connected with vaporizer 709, another end is outstanding upward from the grooving portion (not shown) at the edge that is arranged on machine room plate 728, and is connected with condensed device and compressor 711 with the exsiccator (not shown) respectively.
Wherein, put into refrigerated warehouse because pipe arrangement takes out from the rear of the higher vegetable compartment 703 of temperature, therefore, the increase influence that picks and places the heat of being brought into because of pipe arrangement is little, and it has good energy-saving effect.
In addition, the oil that sucks pipe arrangement 733 flows out and prevents that trap 736 is set near the joint of it and compressor 711, and is incorporated in the recess 727.In order to improve assembling operation and service operation, alleviate the closeness of pipe arrangement, and can be visual to tubing connection portion from the rear, the tubing connection portion of compressor 711 is configured in the left and right sides of compressor towards the back side.
Suction pipe arrangement 733 is provided with a plurality of rising gradients and it is upwards advanced from the lower rear portion of compressor 711 towards the side, along slightly vertical direction, form riser portions afterwards at the Vertical direction center line height of ratio piston compressor 711 and the low position of height of ratio piston compressor 711.In order to make recess 727 minimums, and make its projection in the refrigeration Kuku minimum, must make compressor 711 miniaturizations and dwindle it and the space of compressor periphery wall as far as possible, on above-below direction, by being below the height of compressor 711 with the pipe arrangement height setting, like this, just can prevent pipe arrangement contact wall.
And, after suction pipe arrangement 733 rises in vertical direction, the oil that formation is made of the pipe arrangement U curved part of establishing towards the place ahead of heat insulating box 701 737 flows out and prevents that trap 736, pipe arrangement U curved apex are positioned at the place ahead one side of the more close heat insulating box of in-plane center line of ratio piston compressor.Compressor 711 forms the shape that has curvature towards end face, therefore, if constitute pipe arrangement curved part 737 above compressor 711, so just has rich space, so just can exceed to take the pipe arrangement accommodation space and make its miniaturization.In addition, can make pipe arrangement have elasticity, absorb vibration propagation, prevent that the stress in the pipe arrangement fixing part from concentrating, and reduce the danger of pipe arrangement breakage from compressor 711 by 737 of pipe arrangement U curved parts are set.
Suck pipe arrangement 733 by after the U bending, roughly be bent, be embedded in the insulator 715 from the end, the back side of machine room plate 728 along Vertical direction.
Internal structure to compressor 711 describes below.
In Figure 25, combination drawing and forming thickness is that the steel plate of 2mm to 4mm forms the lower casing 738 of bowl shape and falls the upper casing 739 of bowl shape, and the inside of the compression case 740 of the seal structure around the shell joining portion 740a of welding lap possesses with elastomer 741 and flexibly mounted rotary driving part 742 and press part 743.Connecting by the suction pipe arrangement 733 of open-ended in compression case 740 inside, discharging pipe arrangement 744 and constitute the Other Instruments of freeze cycle, and enclosed quantitative oil 745 and refrigeration agent (not shown).In addition, be equipped with at the following quadrate part of lower casing 738 and be used for the support 746 of yielding support heat insulating box 701.In addition, the tomography mode of support 746 yielding that is used for guaranteeing elastic supporting part thickness by one section is provided with.
Rotary driving part 742 is made up of motor 747 and bearing portion 748.Motor 747 is formed at the stator 749 that produces the hollow cylindrical electromagnetic coil of rotating force between the permanent magnet, the rotor 750 that has the permanent magnet relative with micro-gap in the hollow portion of stator 749 inside by having by applied voltage.Bearing portion 748 is by possessing core shift axle 751 in the end, inside is the hollow of both ends open, is provided with the axle 752 of the spraying hole of spiral helicine groove (not shown) internal communication around, is constituted with the bearing 753 of the mode stationary axle 752 of rotation freely.
Press part 743 is by being arranged on the top and having the cylinder body 755 of the cylinder body lid 754 of valve system (not shown), piston 756, being installed on piston 756 and the core shift 751 and the connecting rod 757 that rotary manipulation converts the linear reciprocation operation to is constituted according to the mode of shaking freely.In order to make compressed refrigeration agent directly be discharged to the outside of compressor 740, discharge pipe arrangement 744 and be connected with cylinder body lid 754 by valve system.In addition, suction portion is opened in compression case 740 inside by valve system.Particularly for noise reduction, suction passage sets the baffler (not shown) between the air intake passage of cylinder body lid 754 and machine room shell 740.
Suction pipe arrangement 733 becomes the mode on a plane and disposes the miniaturization of enforcement compressor 711 with the internal face of opening end and compression case 740.
Below, operation, the effect of the refrigerated warehouse that adopts said structure described.
At first, the temperature setting and the type of cooling to each area of insulation describes.For stored refrigerated, cold storage room 702 is that lower limit set is 1 ℃～5 ℃ with the temperature of not freezing usually.In addition, in order to improve the freshness of flesh of fish etc., storage box 723 is set to lower temperature, for example-3 ℃～1 ℃.
Switch chamber 716 and can change the temperature setting, can set the temperature of regulation for from the freezer temperature scope to refrigeration, vegetable compartment temperature range according to user's setting.In addition, ice making compartment 717 is independently to ice preserving chamber, and it possesses the automatic ice-making plant (not shown), is used for making automatically, stores and ice.What preserve ice is the cryogenic temperature scope, as reaching the purpose of preserving ice, also can be set at the cryogenic temperature more higher-18 ℃～-10 ℃ than cryogenic temperature.
Vegetable compartment more than 703 is set to cold storage room 702 and equates or 2 ℃～7 ℃ higher slightly temperature.Be set at the low temperature that does not freeze temperature, then can keep the freshness of zone of eclipse leaf vegetables for a long time
Refrigerating chamber 704 is set at-22 ℃～-18 ℃ usually for freezing preservation, in order to improve the state of freezing preservation, for example also is set at-30 ℃～-25 ℃ low temperature sometimes.
In order to keep different temperature to set effectively, each chamber is divided by heat insulation wall, but as method low-cost and the raising heat-shielding performance, can use integral body of insulator 15 foam-filled one-tenth.The heat insulating member such with using foam styrene compared, and it can have about 2 times heat-shielding performance, therefore, can enlarge by the thinning dividing plate and take in volume etc.
Operation to freeze cycle describes below.According to the temperature that sets in the refrigerated warehouse,, begin and stop the cooling running by the signal that temperature transducer (not shown) and control panel are sent.According to the instruction of cooling running, in compressor 711 inside, voltage is added on the motor 747 of rotary driving part 742 by electric wire from the terminal (not shown).
So motor 747 begins operation, the magnetic excitation coil of stator 749 produces rotating force between the rotor 750 with permanent magnet.By the rotation of rotor 750, in bearing portion 748, be fixed on axle 752 rotation synchronously on the rotor 750, also core shift rotation of core shift axle 751.Because of the rotation of core shift axle 751, by the connecting rod 757 that is provided with in the mode that can shake freely, piston 756 is back and forth operation in cylinder body 755.
Like this, carry out the squeeze operation of refrigerant gas at press part 743.Promptly, when piston 756 moves to apart from farthest position of cylinder body 755, pressure in the cylinder body 755 descends, and the valve system (not shown) that is arranged on the suction portion on the cylinder body lid 754 is opened, and the refrigerant gas in the compression case 740 is inhaled in the cylinder body 755 via the baffler (not shown).Then, when piston 756 moved to the nearest position of cylinder body 755, the refrigerant gas that is inhaled into was compressed and becomes the refrigerant gas of High Temperature High Pressure, and was discharged from by valve system from the discharge portion of cylinder body lid 754.The refrigerant gas that is discharged from is sent to outside the compression case 740 by directly covering the 754 discharge pipe arrangements 744 that are connected with cylinder body.
Like this, become the structure of the inside low-pressure type of the refrigerant gas that has low pressure in the compression case 740, the refrigerant gas that returns from the suction pipe arrangement is discharged in the compression case 740.
The bearing portion 748 and the slide part 758 in the press part 743 that are present in compressor 711 are guaranteed lubricity by oil 745.And oil 745 and refrigerant gas select to have the combination of intermiscibility, the combination of low R134a of ozone layer destroying coefficient and ester oil are arranged, the HC600a of the refrigeration agent of the hydrocarbon system of environment protection type that particularly the global warming coefficient is also low and the combination of mineral oil etc.
In addition, oil 745 is enclosed in the compression case 740 and is stored in the bottom, is determined in order to ensure the fuel head enclosed volume of stipulating.Supplying with oil 745 to slide part 758 is to utilize centrifugal force that the rotation of axle 752 produces and undertaken by the hollow of axle 752 is inner.Axle 752 lower end is immersed in the oil 745 fully, from here at the oil 754 of axle 752 inner adverse currents from being ejected at the set spraying hole (not shown) in the position relative with each position of slide part 758.And, by the spiral chute around the axle 752, can make oil 745 supply with slide part 758 fully.
The refrigeration agent of the High Temperature High Pressure that the operation by above-mentioned compressor 711 is discharged from dispels the heat in the condensed device (not shown) and condensing liquefaction is depressurized the refrigeration agent that becomes low-temp low-pressure by capillary tube 732, arrives vaporizer 709 then.
By the operation of cooling fan 708, carry out heat exchange with air in the refrigerated warehouse, the refrigeration agents in the vaporizer 709 are evaporated gasification, use the buffer (not shown) to wait the cool air that distributes by the low temperature of heat exchange, come each chamber is cooled off with this.
The refrigeration agent of discharging from vaporizer 709 is inhaled into compressor 711 through sucking pipe arrangement 733.At this moment, weld together according to mode and the capillary tube 732 of heat exchange but suck pipe arrangement 733, and be embedded in the insulator 715, therefore, heat can not escaped around, but from the suction pipe arrangement 733 of low temperature to capillary tube 732 heat transfers.In the decompression process of refrigeration agent, because capillary tube 732 is cooled, therefore, descend than enthalpy, cooling effect increases.The refrigerant temperature that sucks pipe arrangement 733 rises, and can become and the temperature of environment temperature more than about equally in export department.Rise owing to suck the refrigerant temperature of pipe arrangement 733, therefore, the thermal loss in being inhaled into compressor 711 processes is little, so efficient improves.The refrigerant temperature of freeze cycle in vaporizer 709 that generates cryogenic temperature is low-down temperature below-20 ℃, and be therefore, big especially to reducing the thermal loss effect.
In addition, because capillary tube 732 is higher high temperature, therefore, if it is configured in low-temperature section, so, producing heat radiation, freeze cycle generation thermal loss outside pipe arrangement 733 heat exchanges with sucking, and become the thermal force in the refrigerated warehouse, thereby finally reduce energy saving, but owing to disposed capillary tube 732 and sucked pipe arrangement 733 at the back side of the high cold storage room 702 of refrigeration storehouse temperature, therefore, thermal loss and can significantly not increase to the thermal force in the refrigerated warehouse, thus can guarantee energy saving.Particularly fully guarantee the length of heat exchange department 735, and, make its back side at cold storage room 2 crawl as and compression type is taken in, therefore, can obtain energy-conservationization and the abundant intensification that sucks pipe arrangement 733, and, owing to the portion of crawling adopts the structure that the rising gradient does not have trap is set, therefore, liquid refrigerant and refrigerator oil can not be detained, and can not cause that pressure loss etc. is to Effect on Performance.
When carrying or move to be provided with when carrying out the refrigerated warehouse of aforesaid operations, as shown in figure 26, use the ground handle 729 and the back side handle 730 that are located on bottom panel 725 and the backplate 726, carry with 4 many people such as people.
Increasing and function is more and more because of the refrigerated warehouse volume, optional feature and be used for the use amount of vacuum heat insulation material of energy-conservation big density and also increase thereupon, so the weight of refrigerated warehouse significantly increases, and, the height of outside dimensions has become main flow near the refrigerated warehouse of 1800mm, the width and the degree of depth are about 600mm to 750mm, and how to carry has been a very important factor.
When refrigerated warehouse is delivered to client house, refrigerated warehouse to fallen to carry certainly, therefore, be provided with handle in bottom surface and upper rear portion.In addition, being not only when joining goods, in removal of home or change room general layout etc., all is to put upside down to carry refrigerated warehouse before energising under a lot of situations.
By these handles, then can make the shop front towards on carry refrigerated warehouse, can prevent that in handling process door is opened suddenly and can't continues problems such as carrying and refrigerated warehouse inner member or collecting article fall.
At this moment, the inside of set compressor 711 in the recess 727 of end face, as shown in figure 27, during the opening end of open suction pipe arrangement 733 submerged oil 745 in compression case 740, oil can flow out from sucking pipe arrangement 733 adverse currents.But the oil that is made of pipe arrangement U curved part 737 flows out the delay face of the oil 745 when preventing trap 736 in the face of carrying and promotes towards the top, and therefore, oil 745 can not flow to and suck in the pipe arrangement 733 and in the vaporizer 709.When resetting after carrying, oil flows out the oil 745 that prevents in the trap 736 and returns in the compression case 740 because of gravity, does not stop up situation about sucking in the pipe arrangement 733 and oil 745 can not take place always.
Therefore, oil 745 in the compression case 740 is guaranteed quantitatively, thereby can prevent to supply with the low on fuel of slide part 758, particularly can prevent compressor 711 begin start when energising and supply with the low on fuel of slide part 758, therefore, can provide a kind of high refrigerated warehouse of reliability that can further reduce the danger of compressor 711 damage etc.
For the projection of recess 727 in refrigerated warehouse is contracted to inferior limit, also can be at the ultra-thin condensed device of top side configuration, also can adopt box structure, in recess 727, dispose compressor 711 and machine room fan 731 successively side by side, and guarantee the volume of above-below direction.In addition, amass and increase heat dissipation potential if condensed device enlarges fin and tube type, steel wire tubular type and spiral fin and tube type outer surface, so, it is very effective that size by dwindling condensed device or increase ability reach purpose of energy saving.
In addition, condensed device is not to be the forced refrigeration formula, can be to paste the natural refrigeration type that the good copper pipe arrangement that conducts heat is constituted in the inboard of outer container 723 yet, can make up to be used for antidrip copper pipe arrangement on the dividing plate that is provided between each chamber insulated door body yet.
If refrigeration agent uses the R600a of HC, because the specific volume of refrigerant gas is bigger, volume flowrate increases so, therefore, the flow velocity of heat exchange department also increases, and conduct heat to quicken, because of the cooling effect increase that the temperature that sucks pipe arrangement 733 rises and the cooling of capillary tube 732 produces, the opposite effect improves, and because big with the intermiscibility of refrigeration agent, gas flow rate is also big, therefore, oil 745 cyclicity is good, guarantee aspect the reliability favourable.
In addition, use the stream control gear of electronic three-phase valve or electric expansion valve etc., structure according to partitioned organization and temperature setting is used a plurality of vaporizers respectively, switch a plurality of capillary tubies, control decompression amount, in the stopped process of compressor 711, cut off gas, so then can further realize the purpose of energy-conservationization.Particularly, not only can reduce the thermal force in the refrigerated warehouse like this, but also have energy-saving effect by the stream control gear being set in place in the recess 727 of the end face of heat insulating box 701.
In addition, the back side handle 730 that is used for carrying refrigerated warehouse is set at the below of the recess 727 that is easy to guarantee intensity, if but in identical position, with the control panel is that central authorities are provided with back side handle 730 in its both sides, so, configuration space effectively not only, and have the effect that enlarges internal volume.In addition, if the left and right sides above top cover 734 is provided with back side handle 730, so, just can avoid compressor 711 the space being set and form handle shapes, therefore, the space efficiency height, even in handling process, the bight of holding heat insulating box 701 gets final product, and therefore, has the effect of easy carrying.By bottom surface handle 729 also is arranged on the bottom surface forward end, like this,, therefore, can improve the easy degree of carrying as long as hold corner part.
The recess 727 of heat insulating box 701 utilizes insulator 715 to constitute left and right sides wall, if but only constitute the side with shell 724, so, the thermal diffusivity of compressor 711 improves, and, can increase the space of components that is configured in the recess 727.
In the present embodiment, compressor 711 is installed in the recess 727 at the end face rear that is arranged in heat insulating box 701, but, top part at heat insulating box 701 is not provided with recess etc., but install at the top part that is roughly plane shape under the situation of compressor 711, refrigerated warehouse below vaporizer 709 is arranged in compressor 711 when equally also at carrying refrigerated warehouse etc. it being put upside down, prevents that oil from flowing in the suction pipe arrangement 733 and vaporizer 709 that is configured in compressor 711 belows.Therefore, guarantee the oil mass in the compressor 711, can prevent that fuel head from significantly reducing, guarantee slide part fuel feeding, can reduce the danger that damage etc. takes place compressor 711 to compressor 711.
(mode of execution 8)
Figure 30 is the summary section of the compressor in the refrigerated warehouse that carries in embodiments of the present invention 8, and Figure 31 is the aerial view of the inside of the compressor in the refrigerated warehouse that carries in embodiments of the present invention 8.
In the drawings, internally extend and be provided in substantially on the same plane for compressor not with shell inside from lower casing 801 at the inner pipe arrangements 800 that suck of compressor 100, with the suction port 802a of absorbing silencer 802 near and establish in opposite directions.
Sucking the shell inner opening portion of pipe arrangement 800 and the reason that the shell inner face roughly is provided on the same plane and be, on structure, is in order to prevent to suck the physical buffer of the inner structure part in 800 pairs of shells of pipe arrangement, to realize miniaturization.
In addition, the electronic member 803 with rotor 803a and stator 803b by support 805 with elastic member by yielding support in lower casing 801, at the top of electronic member 803 configuration compression element 804.
In addition, in that being installed in turn, compressor 100 and condensed device (not shown) and decompressor (not shown) and vaporizer (not shown) form in the freeze cycle of a series of refrigerant flow path, enclose R600a as refrigeration agent, enclose in the inside of compressor 100 with the big mineral oil of the intersolubility of R600a be the oil 810 of raw material.
Like this, be configured in the compressor 100 of bottom at electronic member 803, for the rotor 803a that makes the electronic member 803 that is rotated along with the running of compressor 100 does not cushion with oil 810, after the height of considering support 805 or mounting point, again it is configured.
In addition, on compression element 804, form the contacting part 820 that has certain interval with upper casing (not shown) or lower casing 801.
The following describes the details of compressor 100.
Axle 840 has by being pressed into shrunk fit and the main shaft part 841 of fixed rotor 803a, the core shift portion 842 that forms with main shaft part 841 core shifts.Cylinder body group 850 has slightly cylindrical circular pressing chamber 851, also has the bearing portion 843 of main shaft part 841 of supporting axle 840 that is used for simultaneously, and is formed at the top of electronic member 803.
At this moment, form rotor recesses 803c in compression element 804 1 sides of rotor 803a, bearing portion 843 extends in this rotor recesses 803c, like this, is embedded at the altitude range of the rotor of electronic member 803 and inserts compression element 804, realizes miniaturization with this.
Piston 860 is by in the movable embedding pressing chamber 851, and connects by the core shift portion 841 of coupling gear 861 with axle 840, makes rotatablely moving of axle 840 convert the to-and-fro motion of piston 860 to.Space by piston 860 expansions, compresses chamber 851, refrigeration agent in the suction port 802a suction casing of absorbing silencer 802, by being arranged on the valve (not shown) that cylinder body covers 852 inside, discharge in the discharge pipe arrangement 831 of shell outside by formed exhaust silencer 853 and discharge tube 854, discharge tube 870 in cylinder body group 850.
Discharge tube 854 as high press fit pipe is that internal diameter is the steel pipe of 1.5mm to 3.0mm, uses the bending of L word or U word and has ductility, and the discharge tube 870 of compression element 804 and shell flexiblely links together.
In addition, electronic member 803 uses the adjustable frequency motor that uses permanent magnet in rotor 803a.In existing common induction motor,, so, just can not produce the required moment of torsion of compressor 100 runnings if stator 803b and rotor 803a's is long-pending thick little.But, by using the adjustable frequency motor that in rotor 803a, has used permanent magnet, so just do not need to produce the required field current of rotation torque, therefore, the long-pending thick step-down of the long-pending thick or rotor 803a of stator 803b not only can be made, but also electronic member 803 miniaturizations can be made.
Below, the operation of compressor 100 is described.
If compressor is energized, so, electric current is flowed to the stator 803b of electronic member 803 by terminal 880, lead-in wire 881, and by the rotating magnetic field that stator 803b is produced, rotor 803a rotates.Because of the rotation of rotor 803a, the core shift portion 842 of the axle 840 that links with rotor carries out and the rotatablely moving of the axle center core shift of axle 840.The core shift motion quilt and the coupling device 861 that core shift portion 842 links of axle 840 convert to-and-fro motion to, become the to-and-fro motion of the piston 860 that links with the other end of coupling device 861, piston 860 makes the volume in the pressing chamber 851 change on one side, Yi Bian carry out the suction compression of refrigeration agent.
The volume that piston 860 sucks, discharges in pressing chamber 851 interior reciprocal processes is called the inflator volume, because of the big or small cooling capacity of inflator volume can change.
Below, to stopping under the state of compressor, refrigerated warehouse describes because of carrying waits the situation of toppling over.
If compressor 100 is in out-of-operation state for a long time, so, R600a liquefies and becomes liquid refrigerant 890, and is stored in the top of the oil 810 of the proportion mineral oil heavier than the R600a of liquefaction.So, under the state of refrigeration agent liquefaction, be stored in the universal refrigerant on oily top as liquid refrigerant, use the combination of carbon dioxide coolant, ester oil or ether oil like this too.In contrast, for example, using usually under the situation of R134a and ester oil as the prior art refrigeration agent, the upper and lower relation of oil and liquid refrigerant is then opposite, and liquid refrigerant is stored in the bottom, and ester oil is stored in its top.
As described in present embodiment, using liquid refrigerant 890 to be stored in the compressor 100 of the such refrigeration agent in oily 810 tops and the combination of oil, if compressor 100 is tilted, so, the oil 810 that is stored in the bottom arrive with the internal face of lower casing 801 substantially at grade and the suction pipe arrangement 800 of opening, so, oil flows out outside the shell easily, therefore, the oil 810 of shell inside reduces, and fuel head also finally reduces.
As mentioned above, if fuel head reduces, so, the oil mass that is supplied to the slide part of compression element 804 reduces, and the friction of slide part etc. might take place, and also may finally cause reliability decrease.
At this problem, in the present invention, the refrigerating capacity of applying unit volume is the about about 1/2 of R134a, is about about 1/20 refrigeration agent R600a of carbon dioxide.Like this, for the refrigerating capacity that obtains to equate with R134a or carbon dioxide, the inflator volume increased be about 2 times of R134a, about 20 times of carbon dioxide, therefore, the piston discharge capacity of compressor also is directly proportional with the increase of this inflator volume and increases.Promptly, because the volume flowrate of the unit time of refrigeration agent increases, therefore, flow velocity in the pipe arrangement of refrigeration agent by in the refrigeration system time increases and is about 2 times of R134a, about about 20 times of carbon dioxide, therefore, the oil 810 that is trapped in the refrigeration system can return the inside of compressor 100 rapidly, thereby can prevent the low on fuel in the shell.
In addition, for carrying of refrigerated warehouse etc. and the reduction of the refrigerating machine pasta that causes, if the time more than at least 5 minutes within 10 minutes after connecting compressor power, use comes the such frequency-converter device of rotating speed of Driven Compressor according to the rotating speed higher than source power supply frequency, so, because of the piston discharge capacity increase of high speed rotating compressor, like this, the flow velocity in the pipe arrangement when refrigeration agent passes through in the refrigeration system increases.Therefore, the oil 810 that is trapped in the refrigeration system can return the inside of compressor 100 rapidly, thereby prevents the low on fuel in the shell.
In addition, in the compressor 100 of present embodiment, realized the miniaturization of compressor in short transverse, compare with the whole height 190mm～200mm of existing common light duty compressor, the height of the compressor 100 of present embodiment is about 145mm, has realized the miniaturization on the short transverse.
When the whole height to this compressor carries out miniaturization, for fear of reliability decrease, and the fuel head of guaranteeing to enclose the oil mass of compressor inside is the 30mm that equates with original common light duty compressor, fuel head be original compressor whole height 12%～13%.In contrast, in the light duty compressor of present embodiment, fuel head increases to about 17% of the whole height of compressor, and oil flowed out when compressor tilted becomes a bigger problem.
Problem hereto, the compressor 100 of present embodiment is realizing making the compressor miniaturization by the height that reduces compression element 804 and electronic member 803 in the miniaturization.
Promptly, the part of the support 805 of the Machinery Ministry that yielding support is made up of compression element 804 and electronic member 803 is not as the factor that reduces height, but utilize the Machinery Ministry of compression element 804 and electronic member 803, be that inner structure part realizes reducing height, like this, oil 810 not with electronic member 803 buffering of Machinery Ministry, and fuel head is difficult for change.
As mentioned above, in the mode of refrigerated warehouse upper part of body configuration compressor 100, miniaturization about the short transverse of the compressor 100 that causes going wrong, in the factor and viewpoint that realize miniaturization, particularly can not promote aspect the oily outflow, in other words, in order to keep about controlling the reliability that oil flows out, and adopt the composite structure of above-mentioned distinctive miniaturization factor.
In addition, the topmost part of the pasta for oily 810 by guaranteeing to equate above size relationship with original compressor, also can be controlled the outflow of oil 810 to the height of the opening portion that sucks pipe arrangement 800.For example, the aperture position of suction pipe arrangement 800 in shell is positioned at than 1/2 of the maximum height of shell high top, so just can increase the effect that oil flows out when preventing compressor 100 inclinations.
In addition, in the present embodiment, owing in compression element 804, form the contacting part 820 that has certain interval with upper casing (not shown) or lower casing 801, therefore, when compressor tilts, contact with upper casing or lower casing 801 by contacting part 820, bigger inclination can not take place in the Machinery Ministry that big compression element 804 and electronic member 803 are formed.Therefore, can prevent the volume of Machinery Ministry compressing, and can guarantee space portion, thereby can prevent that oil 808 from flowing out from sucking pipe arrangement easily to the oil of the side shifting that tilts.
(mode of execution 9)
Figure 32 is the summary section that carries the compressor of refrigerated warehouse in the embodiments of the present invention 9.
In compressor 900 inside, suck pipe arrangement 906 and extend in the inside of shell, it is the direct absorbing type that engages with absorbing silencer 939 by the spring 906a as elastic member, passes through the inner space route of absorbing silencer 939 and leads in the cylinder body 936.In addition, the shell inside that sucks pipe arrangement 906 has the curved part towards the top, in shell towards above opening, and link with spring 906a as elastic member.
In addition, absorbing silencer 939 links to each other with the route of cylinder body lid 935, and it is configured on the same direction with cylinder body 936 or cylinder body lid 935.And, in order being connected, to suck pipe arrangement 906 and also be configured on the same direction with suction absorbing silencer 939.In order to reduce pressure pulsation, discharge the piping length that pipe arrangement 907 adopts regulation, and lower casing is installed in a side opposite with the cylinder body lid to improve the elasticity of pipe arrangement.Suck pipe arrangement 906 and discharge pipe arrangement 907 by constituting, so just can form the compressor 900 of more miniaturization in an opposite side.
According to above-mentioned direct absorbing type structure, under the situation that compressor 900 tilts, only the valve clearance of gap by cylinder body 936 or cylinder body lid 935 or be located at short spaces such as oil 908 return aperture (not shown) in the absorbing silencer 939 is that the adverse current that oil 908 can not take place flows out.
Adopt the spring of close and numerous ground tangle up to constitute if suck the joint of pipe arrangement 906 and absorbing silencer 939, so, will reduce the reception and registration of compressional vibration, and, oil 908 can be reduced because of the discharge of viscosity, therefore, the adverse current of oil 908 can be reduced from gapping of spring.
In addition, as connecting the elastic member that sucks pipe arrangement 906 and absorbing silencer 939, used spring in the present embodiment, but also can use the isoelastic resin of rubber.
Industrial utilizability
Because freezer involved in the present invention can be effectively and use easily the freezer inner space, therefore, be applicable to use the machine of the cooling devices such as freezer of home-use or office usefulness.

Claims (25)

1. compressor is characterized in that:
It is a reciprocating movement type compressor,
In seal container, take in electronic member that constitutes by stator and rotor and the compression element that drives by described electronic member,
The Machinery Ministry of being made up of described compression element and described electronic member flexibly is bearing on the described seal container by support unit,
This compressor have pressing chamber and in described pressing chamber pistons reciprocating, wherein, comprising:
Have main shaft part and core shift portion axle and
The bearing portion of the described main shaft part of axle supporting,
Described rotor is fixed on the described main shaft part,
Described Machinery Ministry uses hydrocarbon coolant as refrigeration agent, and compares as the situation of refrigeration agent with using R134a, and its inflator volume is relatively large,
Described rotor is provided with rotor recesses in described compression element one side,
Described bearing portion extends in described rotor recesses,
Described electronic member is the motor with the frequency conversion drive of multiple rotation speed operation,
In described rotor, use permanent magnet.
2. compressor as claimed in claim 1 is characterized in that:
Described hydrocarbon coolant is R600a,
The oil that is sealing in the compressor is mineral oil or alkylbenzene.
3. as claim 1 or the described compressor of claim 2, it is characterized in that:
Described electronic member is that the salient pole that a plurality of salient pole portion insulator to the stator core that constitutes described stator is wound with coil is concentrated winding type.
4. compressor as claimed in claim 3 is characterized in that:
Described compression element comprises the cylinder body group with pressing chamber,
Described cylinder body group has the foot section that formation is installed in the attachment face on the described electronic member,
The foot section of described cylinder body group is installed in described salient pole and concentrates in the stator core of winding type.
5. as each described compressor in the claim 1 to 4, it is characterized in that:
Described permanent magnet is made of the permanent magnet of terres rares.
6. as each described compressor in the claim 1 to 5, it is characterized in that:
Distance between the surface of contact of the center of gravity of the above-below direction of compressor and the leg of described compressor and elastic member, shorter than the distance between the lower end surface of described center of gravity and described support unit.
7. as each described compressor in the claim 1 to 6, it is characterized in that:
Be fixed on down leg on the container and be positioned at the more top of the lower end surface of described support unit with contacting of described elastic member.
8. compressor as claimed in claim 7 is characterized in that:
The height of described elastic member is bigger than the distance between the described foot of described surface of contact and described container down.
9. as claim 6 or 7 described compressors, it is characterized in that:
Described leg comprises:
Be fixed on the stationary plane on the described seal container;
The curved part that upwards erects; And
Card ends the surface of contact of described elastic member.
10. as each described compressor in the claim 6 to 8, it is characterized in that:
Described leg also has the rib that extends across at least two places of described stationary plane and described curved part and described surface of contact.
11. compressor as claimed in claim 1 is characterized in that:
Described seal container has upper container and following container,
The a plurality of legs that are fixed on the described container down are arranged in the recess by elastic member,
Described recess is provided with at compressor has recess on the face,
In described recess, be equipped with elastic member,
So that the height of described elastic member is installed to refrigerated warehouse greater than the mode of the distance between the foot of the face that is provided with of described compressor and described compressor.
12. compressor as claimed in claim 11 is characterized in that:
Utilize full week or its part of described recess, install to refrigerated warehouse so that the downside of described elastic member embeds fixing mode.
13., it is characterized in that as each described compressor in the claim 1 to 12:
On the following container of seal container, have by the little recessed or protruding formed teat (hump) of the periphery of ratio of curvature seal container.
14. compressor as claimed in claim 13 is characterized in that:
Described teat has near leg the teat set attachment portion of the leg of described compressor and described seal container.
15. compressor as claimed in claim 13 is characterized in that:
Described teat has near supporting the teat set attachment portion of the lower end surface of support unit and described seal container.
16., it is characterized in that as claim 6 or 7 described compressors:
The following container of seal container has by the little recessed or protruding formed teat of the periphery of ratio of curvature seal container,
Described teat is set near the attachment portion of the leg of described compressor and seal container.
17., it is characterized in that as each described compressor in the claim 11 to 16:
Height from the foot of described down container to the top of described upper container is below the 140mm.
18., it is characterized in that as each described compressor in the claim 1 to 17:
From the height that the supreme container napex of face is set is below the 150mm, and the height of elastic member is more than the 20mm.
19. compressor as claimed in claim 1 is characterized in that:
Also have and be configured on the suction pipe arrangement that is connected with described seal container, prevent that oil from flowing out from the inner oil that flows out of described compressor and prevent trap.
20. compressor as claimed in claim 19 is characterized in that:
Have and be divided into up and down two ones upper casing and lower casing,
After inner structure part was taken in inside, described upper casing and described lower casing were bonded together at the shell joining portion with being sealed,
The suction pipe arrangement that is arranged on described down shell-side roughly be positioned at same putting down with the internal face of described lower casing and on, and at the compressor inside opening.
21., it is characterized in that as claim 19 or 20 described compressors:
Refrigeration agent is enclosed in the freeze cycle,
Described refrigeration agent under the state of liquefaction than the light specific gravity of described oil.
22. compressor as claimed in claim 21 is characterized in that:
Described refrigeration agent is R600a,
Described oil is mineral oil.
23. a refrigerating plant is characterized in that, comprising:
Heat insulating box;
Be equipped with the compressor be arranged in the described heat insulating box and condensed device and decompressor and vaporizer in turn and form the freeze cycle of a series of refrigerant flow path; And
As each described compressor in the claim 1 to 22.
24. a refrigerated warehouse is characterized in that, comprising:
Heat insulating box;
Be equipped with the compressor be arranged in the described heat insulating box and condensed device and decompressor and vaporizer in turn and form the freeze cycle of a series of refrigerant flow path; And
As each described compressor in the claim 1 to 22.
25. refrigerated warehouse that the described refrigerating plant of claim 23 is installed.
CN2005800352809A 2004-10-14 2005-10-14 Compressor, refrigerating device and refrigerator Active CN101040120B (en)

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JP299895/2004 2004-10-14
JP2004299895 2004-10-14
JP2004349354 2004-12-02
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JP2005269622A JP2006183655A (en) 2004-10-14 2005-09-16 Compressor, refrigerating device and refrigerator
JP269622/2005 2005-09-16
PCT/JP2005/018919 WO2006041147A1 (en) 2004-10-14 2005-10-14 Compressor, refrigerating device, and refrigerator

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CN107345724A (en) * 2017-08-25 2017-11-14 中国工程物理研究院核物理与化学研究所 A kind of rotary cooling device for heat exchange
CN107345724B (en) * 2017-08-25 2023-03-14 中国工程物理研究院核物理与化学研究所 Rotary cooling device for heat exchange
CN112856903A (en) * 2019-11-12 2021-05-28 日立环球生活方案株式会社 Refrigerator with a door
CN112856901A (en) * 2019-11-12 2021-05-28 日立环球生活方案株式会社 Refrigerator with a door
CN112856900A (en) * 2019-11-12 2021-05-28 日立环球生活方案株式会社 Refrigerator with a door
CN112856900B (en) * 2019-11-12 2022-07-19 日立环球生活方案株式会社 Refrigerator with a door

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CN101482356A (en) 2009-07-15
CN100476328C (en) 2009-04-08
CN101040120B (en) 2011-03-30
CN101482356B (en) 2011-04-27
CN101010548A (en) 2007-08-01
CN101482355B (en) 2011-01-26
CN101482355A (en) 2009-07-15

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