CN1347490A - Refrigerating system for domestic refrigerating appliances - Google Patents
Refrigerating system for domestic refrigerating appliances Download PDFInfo
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- CN1347490A CN1347490A CN00806212A CN00806212A CN1347490A CN 1347490 A CN1347490 A CN 1347490A CN 00806212 A CN00806212 A CN 00806212A CN 00806212 A CN00806212 A CN 00806212A CN 1347490 A CN1347490 A CN 1347490A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/02—Compression machines, plants or systems with non-reversible cycle with compressor of reciprocating-piston type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
- F04B39/0016—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons with valve arranged in the piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2339/00—Details of evaporators; Details of condensers
- F25B2339/04—Details of condensers
- F25B2339/042—Details of condensers of pcm condensers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/12—Sound
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compressor (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention relates to a refrigerating system for domestic refrigerating appliances which comprises a motor-compressor set with reciprocating compressor piston and a so-called fluxomizer. The aim of the invention is to provide a refrigerating system for domestic refrigerating appliances that can be produced with few components, that can be used for various applications without prior extensive modifications and that optimally makes use of the theoretical cyclic process. To this end, the inventive refrigerating system for domestic refrigerating appliances is provided with a hermetic motor-compressor set, a condenser that is connected to the motor-compressor set at the pressure-side and a capillary tube that is connected to the condenser at the outlet side and that is in thermal contact with the suction tube of the motor-compressor set. The refrigerating system further comprises a refrigeratory that is connected to the capillary tube, that is thermally coupled to a PCM device and that is connected to the motor-compressor set at the suction end, and a cooling fan for intensifying the convection in the refrigerator section of the refrigerating appliance. The outlet of the refrigeratory is connected to a fluxomizer which in turn is connected to the air intake of the motor-compressor set. Said motor-compressor set and said fluxomizer are mounted on a chassis and are flexibly supported and enclosed by a sound protection cover. The maximum overall height of said chassis including the components and the sound protection cover mounted thereon corresponds to the base height of the refrigerating appliance. The invention further relates to the inventive design of the hermetic refrigeration compressor, of the reciprocating compressor piston and of the fluxomizer.
Description
The present invention relates to a kind of totally enclosed Compressor Group, compressor piston in the unit and be referred to as the fluid thermal commutative set parts of (Fluxomizer) of growing up to be a useful person, and utilize the compressor bank of above-mentioned band piston and fluid thermal commutative set to grow up to be a useful person and realize being used for the refrigerating plant (Klteanlage) of domestic refrigerating appts.
Conventional refrigerating plant is housed in the family expenses cooling device, this refrigerating plant is pressed the work of compression-type refrigeration machine principle, therefore it has a refrigerant loop, this loop sucks and/or compressor, condenser and the evaporimeter of pressure damper (Druckd mpfer) are formed by having, and wherein preferably is provided with the capillary as expansion limiter between the condenser of family expenses cooling device and evaporimeter.As the configuration of any refrigerating plant, the numerous embodiments of the above-mentioned parts in the refrigerant loop equally also is well-known.In this case, usually refrigeration unit is loaded in the support, and evaporimeter is placed the outside, or its evaporimeter and rack rear wall are loaded on one, or constitute the rack rear wall by it.There is following defective in the refrigeration unit of the family expenses cooling device that this class is known: each parts of unit are all pressed the position of preliminary election design and are installed, and rely on the corresponding pipeline of refrigerant loop to fix, so the complex production process of cooling device.Thereby cost is increased.In order to remedy above-mentioned deficiency, in German utility model 9206167, the disclosed embodiment, the refrigeration unit preliminary election is assembled into assembly.Above-mentioned known schemes relates to a kind of refrigerator and/or vertical freezer of tape base base member, and condenser and compressor are loaded in the pedestal, and they are by blower fan blowing (cooling).Condenser, compressor and blower fan are installed in the closed air channel, and when the suction inlet in air channel and exhaust outlet were positioned at base side, they were closed by hole and/or palisade disk, and cover by door or air valve.The madial wall in air channel is covered with sound-absorbing material, and air channel itself is bent into U-shaped by hollow pipe and is fixed on the pedestal case (Sockelkasten) on every side by elastic component or bullet glue spare, perhaps is bearing in the bottom of pedestal case with similar mode.Another kind of known solution is: by elastic component or bullet glue spare compressor and/or condenser are linked to each other with the air channel inwall, perhaps they are supported on the bottom, air channel.
The shortcoming of such scheme is: the functor that is loaded in the base component has taken public inner chamber, finally causes more effectively utilizing muffler space.In addition, this known arrangement will be with the physical dimension of base component by the refrigeration plant cutting of determining, therefore, when replacing parts in other type unit with it, needs at least structurally to transform.
In handling characteristics, what people generally paid attention to is the preservation condition of cooling article based on the family expenses cooling device.In the family expenses cooling device of routine, by short period startup or disconnection compressor refrigeration space temperature (K ü hfachtemperatur) is regulated, that is to say, drive refrigerating plant with intermittent mode, the refrigeration space temperature fluctuation is remarkable, especially when newly depositing food in, tangible temperature difference will cause treating that chilled goods becomes dry between material storage room's temperature and the evaporimeter upper surface temperature.Also can be as disclosed in the German description of the invention 3926250A1, do not adopt intermittently to drive and add the evaporimeter of a band latent heat reservoir.This evaporimeter is surrounded by a regenerator that has filled cool storage medium, and above-mentioned cool storage medium has definite phase point temperature, and its thermal capacitance can satisfy that refrigerating plant estimates at least reaches heat absorption requirement in a few hours.Whereby, can regulate the driving of compressor near the certain limit phase transition temperature, and particularly advantageous be can improve blower fan to the Forced Convection Heat Transfer between evaporimeter upper surface and the refrigeration space, but so the storage space temperature highly stable, have fast cooling velocity, and obviously reduce the degree that chilled goods becomes dry.
Just because of people recognize this refrigerating plant, parts are installed the neither compact evaporimeter that installs band latent heat holder again additional, for the production cost that reduces the family expenses cooling device, for using based on for other theoretical circulation of actual refrigerating plant process status, when cry is not too high, can solve, but the demand that the material of bearing for the reduction environment recently drops into is more and more stronger with very special cooling pipe.
For this reason, task of the present invention provides a kind of refrigerating plant that is used for the family expenses cooling device, and this device production technology is not cumbersome, and need not do bigger change and just can be loaded on different application scenarios, and the theoretical circulation process the best that adopts.
Can finish above-mentioned task by means of a kind of refrigerating plant that is used for the family expenses cooling device that constitutes by the kind of refrigeration cycle that has filled cold-producing medium, this refrigerating plant is by a fully closed compressor group, one is connected the on high-tension side condenser of compressor bank, one capillary, the blower fan of the refrigeration space convection current of an evaporimeter that links to each other with capillary and a reinforcement refrigerating plant is formed, above-mentioned capillary link to each other with the outlet side of condenser and with the intake line thermo-contact of compressor bank, above-mentioned evaporimeter links to each other and links to each other with the suction side of compressor bank with a hot coupling of latent heat holder, wherein the outlet of evaporimeter is led to the fluid thermal commutative set that links to each other with the air intake duct of compressor bank and is grown up to be a useful person, compressor bank flexibly is loaded on fluid thermal commutative set in the blimp (Schallschutzh ü lle) and grows up to be a useful person and all be installed on the chassis, and the chassis adapts together with the design maximum height (Bauh he) of construction package that is assembled and the blimp base height with cooling device (K ü hlger le).A kind of preferred disposition of refrigerating plant of the present invention is: the chassis amounts to 100mm together with the design maximum height of construction package that is assembled and blimp.
In addition, above-mentioned task of the present invention can be finished by some parts of creating the above-mentioned refrigerating plant of ground exploitation.
Simultaneously, the invention still further relates to the fully closed compressor group that has outer cover bottom (Kapselboden) and outside housing cover, above-mentioned outer cover bottom links to each other each other hermetically with outside housing cover.In outer cover inside a drive motors is housed, the power supply of this motor is introduced hermetically by outside housing cover.Outside housing cover links to each other hermetically with cylinder component, and an inlet valve is housed in the cylinder head.The stator group of drive motors preferably is pressed in the outside housing cover.A pressure pipeline passes the outer cover bottom hermetically and draws outwardly.Fixedly mounted a pipe between outer cover bottom and outside housing cover, the interior space of pipe communicates and communicates with pressure pipeline by the interior space of at least one sheath through hole (Manteldurchbohrung) and outer cover.Above-mentioned pipe is as the bearing shaft of drive motors moving plate group.The cylindrical plate-like of the Upper shaft sleeve of moving plate, it is provided with respect to above-mentioned pipe eccentric axis, and as eccentric wheel, in this mode, the connecting-rod bearing surrounds the jacket surface of above-mentioned cylindrical disc.Be rigidly connected with pistons reciprocating (Oszillierenden Kolben) in cylinder with the connecting rod that the above-mentioned connecting-rod bearing links to each other rotationally.Piston is provided with air bleeding valve.The moving plate group can be made and be fit to the rotating mass balance.The another kind of structure of compressor bank of the present invention is: make cylinder component and mobile highway section (the Flie β strecke) thermal coupling of flowing through liquid refrigerant, in addition, by at least one spray-hole above-mentioned mobile highway section is communicated with the swept volume of piston, above-mentioned hole on distance piston lower dead point position very the small distance part pass cylinder wall.Preferred configuration mode is: make mobile highway section and pistons work volume crank angle on the piston lower dead point position be about 20 ° and locate to communicate.The entrance side in mobile highway section links to each other with capillary at the connecting line place of condenser, and the outlet in the highway section of flowing simultaneously links to each other with condenser inlet or communicates with pressure pipeline.
Feature of the present invention is to be provided with and the rigidly connected compressor piston of reciprocating connecting rod on compressor bank of the present invention, be close to cylinder inner wall a sealing lip is arranged, can control refrigerant flow tube road (Str mungskanal) by means of a valve, valve is opened flow duct during compression stroke, and valve is closed it when intake stroke, in this case, rigidly fix a bell guide on reciprocating connecting rod, this guide has the boot region of cylindrical axial setting.Radially the smooth piston base of Tu Chuing is in that side towards compression chamber of guide.The edge that the guide cylindrical region is left piston base departs from an angle around cylinder inner wall, and in this case, guide surrounds by being slidably disposed on the lip-deep sealing ring of cylindrical sheath, and the sealing ring has the ring-shaped edge of being close to cylinder inner wall.Guide is provided with some through holes, and the compression chamber side opening of above-mentioned through hole is opened by sealing ring during compression stroke, and is covered during intake stroke.The length of connecting rod is at least 8 times of crank throw.
In addition, above-mentioned task of the present invention can be finished by the fluid thermal commutative set structure of growing up to be a useful person, this fluid thermal commutative set is grown up to be a useful person and is made up of a liquid separator and a suction damper, and the intake line that is connected on the evaporator outlet of refrigerating plant communicates with the aforesaid liquid separator.This liquid separator has a reservoir, and above-mentioned suction damper is connected on the liquid separator, and links to each other with the compressor inleting pipe of refrigerating plant.Suck damper and constitute inner contra-flow heat exchanger (Gegenstromw rme ü bertrager).Adorn a standpipe in above-mentioned reservoir, this standpipe communicates with the air inlet pipe of compressor as injecting tubule.Preferably the outlet that fluid thermal commutative set of the present invention is grown up to be a useful person directly links to each other with the air inlet pipe of compressor.Above-mentioned inner contra-flow heat exchanger is made up of the capillary and the intake line of refrigerating plant, and this capillary links to each other condenser with evaporimeter, and round intake line coiled coil two circles.The particularly preferred structure that fluid thermal commutative set of the present invention is grown up to be a useful person is the member of isolating with surrounding environment heat that it is constituted a kind of closure, can design a kind of cylinder blanket (Ummantelung) that the fluid thermal commutative set is grown up to be a useful person and also be can be used for closed compressor that preferably both can be used in this way, above-mentioned shell heat extraction is isolated outer also rise elastic support and deadening.
The boundary that is loaded on the refrigerating plant structure height on the family expenses cooling device substrate level of the present invention and fully closed compressor group, condenser fluid thermal commutative set grow up to be a useful person parts cramped construction and compactly be provided with that to be used for different occasions with refrigerating plant be prerequisite.Except that the installation of evaporimeter, be that parts or refrigerating plant all need carry out and the irrelevant assembling of refrigerating plant production.Above-mentioned parts especially the fully closed compressor group by seldom, the assembling simple structure form.Owing in the fluid thermal commutative set is grown up to be a useful person, be provided with liquid container, needn't make refrigerant charge the best, as long as always and the adjusting relation that satisfies self just can make compressor suck best refrigerant amount.From the higher environment compatibility of needs, on the one hand, importantly sharply reduce lubricants capacity, for the loss of compensation compressor because oil only is used as lubricated, and is unnecessary.The configuration design of fully closed compressor group can be become make the outer cover upper surface not have heat radiation (Verlustw rmeableitung) function on the other hand, the substitute is and adopt the secondary soundproof measures that noise level is reduced to floor level.The secondary soundproof measures of fully closed compressor group also constitutes the elastic support that the fully closed compressor group be loaded on the refrigerating plant chassis and fluid thermal commutative set are grown up to be a useful person simultaneously.
Except that the evaporimeter of the band latent heat holder of packing into, refrigerating plant of the present invention moves in the mode of more optimizing, thereby refrigeratory capacity is big especially, also can reduce compressor indefinite ground and suck liquid, makes cold-producing medium can be superheated to environment temperature.Therefore, cross heat and do not absorbed, but from the mistake of the cold-producing medium that is condensed is cold, obtain by the contra-flow heat exchanger of packing into by environment.The characteristics of the total situation of energy are: at ambient temperature begin the compression, be isentropic Compression substantially, just in time under inferior adiabatic condition, spray liquid refrigerant then.Therefore, the loss of compressor is reduced and cold-producing medium is compressed.The gaseous stream that sucks from compressor is compressed the swept volume of piston and is delivered to the outer cover internal cavities according to the following current principle by the air bleeding valve of device in piston.Because piston base is rigidly fixed on the connecting rod, the power that acts on the piston is consistent with power on the bar, so said process does not form the normal force that causes loss.Power is few on the bar of the transmission device of the force rate conventional structure on the above-mentioned bar.Consequently the matching requirements to drive motors reduce.Since sealing very easily slide and when installing sealing ring to be close to cylinder inner wall very little as the surface of lip, the friction loss that forms between piston and the cylinder is insignificant.However, friction still is enough to stop sealing ring to vibrate vertically, thus sealing ring can to play air bleeding valve to friction and not need valve spring, its reason be that the inertia force of sealing ring can produce the restoring force that is used for valve.Owing to do not enlarge clearance space (Schadraum) in compression chamber outside, can select the size of the stroke cleavage surface of the air bleeding valve realized by sealing ring, make flow loss keep very little.Compare with the transmission device of traditional structure, oscillating mass is reduced to 1/15 to 1/35 the effect acoustical behavior also can obviously improve the piston compressor operation except that reducing cost the time.The characteristics of the following current compressor of realizing with the inlet valve of cylinder head and the air bleeding valve in the piston are almost completely to avoid the suction gas on the air-breathing path in the cylinder is heated.The whole flat enforceable front of piston guarantees that clearance volume is insignificant between compression period.Flow to the pressure damper that the elimination pressure oscillation can be installed by means of gases at high pressure atmosphere in the outer cover inner space and with clearly defined objective gases at high pressure.High pressure gas flows through the interior annular space of annular gap, moving plate bearing and moving plate between stator group, moving plate and stator, pass the interior space that the sheath through hole flows to tube axial from above-mentioned annular space, flow into pressure pipeline from this space again, simultaneously above-mentioned stream absorbs the heat that motor distributes.Then, high pressure gas flows through condenser, step-down capillary, evaporimeter, and the logistics that flows out from evaporimeter is inhaled into the fluid thermal commutative set grows up to be a useful person.In the time of in the liquid separator of above-mentioned logistics incoming fluid heat exchange integrator, the liquid composition of logistics is separated, this separation had both comprised the separation to oil, also comprised the separation of liquid towards cold-producing medium.Gaseous stream flows through grow up to be a useful person inner intake line and enter the air intake duct of compressor of fluid thermal commutative set, above-mentioned intake line is the parts that also work the contra-flow heat exchanger that sucks the damper effect, meanwhile this pipeline absorbs heat, flows through liquid capillaceous and flows through cold thereby make.In addition, the injection tubule of fluid oil-refrigerant mixture through communicating with air intake duct imports and sucks air-flow, therefore can realize inferior adiabatic compression.This inferior adiabatci condition that the compressor loss is reduced can be strengthened by the additional cooling of cylinder.When piston reaches bottom dead centre zone and spray-hole unlatching, flow through and the additional cooling of forming of the mobile highway section of cylinder thermally couple connection by liquid refrigerant, perhaps the liquid refrigerant that flows out from the highway section of flowing partly is inhaled into swept volume by spray-hole and forms additional cooling, and liquid refrigerant evaporates in swept volume simultaneously.Equally, be similar to the lubricated of two-cycle engine (2-Takt-Motoren) and carry out jet lubrication like that, do not have oil firing (lverbrennung) certainly, above-mentioned injection can be supplied with enough oil to all supporting-points, and guarantees that these supporting-points are lubricated.The formation of compressor can utilize eccentric eccentric wheel, the connecting-rod bearing, connecting rod, with the special rigidly connected piston of connecting rod, and air bleeding valve is set in piston, as adopting carbon dioxide as cold-producing medium, the characteristics of this formation were that kind power and pressure process are high.
Below in conjunction with the preferred embodiment of accompanying drawing detailed description refrigerating plant of the present invention, the preferred embodiment that this device has adopted fully closed compressor combination of the present invention and fluid thermal commutative set of the present invention to grow up to be a useful person.Among the figure:
Fig. 1 is the block diagram of refrigerating plant of the present invention;
Fig. 2 is a fully closed compressor group schematic diagram of the present invention;
The schematic diagram that Fig. 3 grows up to be a useful person for fluid thermal commutative set of the present invention;
Fig. 4 is the schematic diagram of compressor piston of the present invention;
Fig. 5 is the block diagram that has the refrigerating plant of the present invention of cylinder cooling;
Fig. 6 is the schematic diagram that has the fully closed compressor group of the present invention of cylinder cooling.
As shown in Figure 1, refrigerating plant of the present invention is made of the fully closed compressor group 10 that has a drive motors 101 and a compressor 102, on air inlet pipe 44 (see figure 3)s of compressor a fluid thermal commutative set is housed directly and grows up to be a useful person.The fluid thermal commutative set is grown up to be a useful person and 40 is comprised a suction damper 43 and a liquid separator 41 that constitutes internal exchanger, an injection tubule 45 that leads to the air intake duct 44 of compressor 102 immerses liquid container, and the intake line 6 that links to each other with evaporimeter 3 tangentially feeds liquid separator 41.Evaporimeter 3 has the latent heat holder that is used to reduce the temperature difference between evaporimeter upper surface temperature and the storeroom temperature, therefore, also absorbs heat when refrigerating plant is out of service.Only do not adopt free convection, can also carry out forced convection, so that obtain desired apotheca temperature by means of a unshowned blower fan.The refrigerant inlet of evaporimeter 3 links to each other with condenser 2 by capillary 42.Capillary 42 and 43 thermo-contacts of suction damper.The pressure pipeline 5 of drawing outwardly from the outer cover of fully closed compressor group 10 communicates with condenser 2.Refrigerating plant of the present invention is designed to the form of compact unit.Fully closed compressor group 10, fluid thermal commutative set grow up to be a useful person 40 and condenser 2 be installed on correspondingly the chassis, the member that is constituted comprises that the general construction height of secondary blimp is no more than 100mm.Above-mentioned secondary blimp is simultaneously also as being loaded on grow up to be a useful person 40 elastic bearing of fully closed compressor group 10 on the chassis and fluid thermal commutative set.For fear of driving evaporimeter 3, grow up to be a useful person 40 tie point of intake line 6 and fluid thermal commutative set is vibrationless.
Fig. 2 schematically shows the cutaway view of fully closed compressor group 10 of the present invention.The outer cover of fully closed compressor group 10 is made up of the outer cover bottom 11 and the outside housing cover 12 that link to each other hermetically each other.Cylinder component 13 links to each other hermetically with outside housing cover 12.The stator group 14 that drive motors 101 has magnetic field winding 14 ' is pressed in the outside housing cover 12.Be provided with a central shaft tube 15 between outer cover bottom 11 and the outside housing cover 12.Preferred outside housing cover 12 has an axle journal 12 ', and above-mentioned central siphon 15 is pressed on this axle journal, and outer cover bottom 11 preferably makes central siphon 15 insert axle sleeves by the axle sleeve 11 ' that is used for holding bearing.Greatly half part about the length of central siphon 15 has a radial jacket through hole 16 at least.In the zone that holds axle sleeve of outer cover bottom 11, pressure pipeline 5 communicates with the interior space of central siphon 15, and above-mentioned pressure pipeline passes hermetically from outer cover bottom 11.The moving plate 18 that has the drive motors 101 of top chock 19 and step 20 is contained on the central siphon 15, bearing 20 ' the positive installation bottom of its bottom bracket axle 11 ', that preferably dispose as sliding bearing.The upper bearing (metal) 19 ' that is located at axle journal 12 ' zone can be gas bearing or sliding bearing.The top chock 19 of moving plate 18 is in the form of annular discs, and the relative aforementioned tube eccentric shaft setting of this disk is also surrounded by the connecting-rod bearing 21.Connecting rod 22 is connected rotationally with the connecting-rod bearing 21, and piston 23 is rigidly fixed on the connecting rod.The stroke that form according to the eccentric structure by top chock 19 and process connecting rod 22 transmits, piston 23 moves back and forth in cylinder component 13.There is shown the situation that piston 23 is in bottom dead centre.Piston 23 is rigidly connected with connecting rod 22 and causes piston 23 to be subjected to respect to the swing (Neigeschwingung) of cylinder axis for tilting, therefore, the power on the piston of acting on is directly delivered on the connecting rod 22 and is consistent with power on the bar, that is to say not to be decomposed into force component on normal force and the bar.Can have the advantage that loss reduces thus, and in traditional having was installed in rotation on connecting rod piston structure on the piston pin, above-mentioned loss was mainly from normal force.In addition, piston 23 also can be provided with an air bleeding valve as shown in Figure 4, this valve is made up of the sealing ring 236 that can slightly move vertically, can realize the following current principle of refrigerant stream whereby, simultaneously can carry out jet lubrication to all supporting-points, be compressed the back through the air inlet that perhaps comprises liquid refrigerant and oil that is arranged on the unshowned inlet valve suction in the cylinder head and flow into the outer cover inner space by the air bleeding valve that is arranged in piston 23, then, flow to annular gap and the top moving plate bearing 19 ' between stator 14 and the moving plate 18 and arrive the annular space 24 that is between moving plate 18 and the central siphon 15, pass the interior space that radial hole 16 flows to central siphon 15 from the air inlet that above-mentioned annular space flows out, flow into pressure pipeline 5 from above-mentioned interior space again.Force the mobile mode of high pressure draught to all supporting-point lubricates inner formation of outer cover by this way, absorb the heat loss of motor simultaneously, therefore, outer cover itself needn't have heat exchange function.So the covering by means of flexible deadening can absorb vibration in the outer cover outside.
Fluid thermal commutative set of the present invention has been shown among Fig. 3 has grown up to be a useful person 40, it is formed by cylindrical liquid separator 41 with as the suction damper 43 of internal exchanger, and the intake line 6 that links to each other with evaporimeter 3 outlets tangentially leads to the aforesaid liquid separator.Internal exchanger 43 comprises the double helix part 47 in the liquid of being pressed into of helical liquid (Str mungsk rper) and capillary 42, the suction air flow stream is crossed above-mentioned liquid and is damped for additional stability in liquid separator 41, capillary 42 connects condenser 2 and evaporimeter 3 as the step-down limiter, and preferably capillary is grown up to be a useful person and can be spiraled around intake line 6 before 40 entering the fluid thermal commutative set.Lower area at liquid separator 41 is provided with a liquid container 46, a standpipe immerses in this container, this standpipe communicates with grow up to be a useful person 40 the outlet of fluid thermal commutative set at the middle part as injecting tubule 45, the air intake duct 44 of compressor 102 communicates with above-mentioned outlet, and this air intake duct is grown up to be a useful person with the fluid thermal commutative set and linked to each other hermetically.Grow up to be a useful person 40 elastic housing (Umh ü llung) of fluid thermal commutative set is not shown.This shell both had been used for grow up to be a useful person 40 the damping vibration formula supporting of fluid thermal commutative set on the chassis, also was used for isolating with the heat of environment, preferably unit of the shell of the shell that the fluid thermal commutative set is grown up to be a useful person and fully closed compressor 10 formation.The fluid thermal commutative set is grown up to be a useful person and 40 is made the actual process situation that reaches near best theoretical circulation process basically.Because liquid container 46 is again coolant collector and lubricant receptacle simultaneously, owing to need not make the charging amount optimum of cold-producing medium, refrigerating plant assembling of the present invention is very simple.
Fig. 4 shows a kind of preferred structure of piston of the present invention.There is shown the cylinder wall 237 of reciprocating compressor 102 (see figure 1)s, piston of the present invention moves back and forth between cylinder wall.Its movement travel is represented by dotted arrow.The left side of this accompanying drawing represents that piston is in compression stroke, and the right side represents that piston is in induction stroke.Cylinder has cylinder head, and this cylinder head links to each other with intake line 6 (see figure 1)s, is provided with a suitable inlet valve in the cylinder head.Piston is made of a guide 232 and a piston base 233, and above-mentioned guide is bell and is rigidly connected at its end and connecting rod 22 away from piston that piston base is fixedlyed connected with guide 232.Also can adopt identical measure that connecting rod 22 and guide 232 are connected together technically makes.Connecting rod 22 usefulness hinges are connected by on the motor-driven bent axle.Guide 232 has the ring-type front, and piston base 233 plane earths are fixed on the guide ring-type front.The diameter of piston base 233 is less than the diameter of cylinder-bore, to avoid because of killing with cylinder inner wall 237 with the axial wobble that bent axle rotates generation with connecting rod 22 rigidly connected pistons.On the other hand, the diameter of guide 232 is less than the diameter of piston base 233, and at this moment, guide 232 is coaxial and cylindrical with connecting rod 22 to its periphery from the ring-type front, thereby forms the sliding surface 234 that points to cylinder inner wall 237.Be provided with through hole 238 in the cylindrical sliding surface zone 234 of guide 232 in total jacket surface spaced at equal angles around.The back side of the surrounding zone that protrudes from guide 232 of sliding surface district 234 1 sides and piston base 233 is adjacent, its opposite side with around, adjacent towards edge 235 that cylinder inner wall 237 extends at angle, the usefulness of check piece (Hubf nger) is also made at above-mentioned edge.Around the cylindrical region 234 of guide 232 sealing ring 236 of being made by polytetrafluoroethylene (PTFE) is housed, this ring has first edge of being close to sliding surface 234 and second edge of being close to cylinder inner wall 237.That side at the back side of the sensing piston base 233 of sealing ring 236 is planes.
Because sealing ring 236 rubs greater than the friction on sliding surface 234 with cylinder inner wall 237, can change the position of sealing ring according to the stroke directions of piston.When compression stroke finishes, be in stop position (im Anschlag) by means of check piece 235 sealing rings 236, and opening travel gap 239V.This state shows in the left side of this accompanying drawing.By selecting the sliding capability of sealing ring 236, or can change by the respective upper surfaces of making sliding surface 234 and to disconnect moment.At stroke gap 239V open period, compressed cold-producing medium flows into crankshaft cavity 2311 from compression chamber 2310 by stroke gap 239V and through hole 238.Crankshaft cavity 2311 exports 5 (see figure 2)s by the motor cavity and the high pressure gas of compressor and communicates.Accompanying drawing 4 right sides show the position that piston is in sealing ring 236 during the intake stroke.Sealing ring 236 is close to the back side of piston base 233 with planar fashion.Therefore, do not have stroke gap 239V, and through hole 238 is closed, so cold-producing medium is sucked compression chamber 2310.
Sealing ring 236 is close to cylinder inner wall 237 and is close to sliding surface 234 respectively has the structure of a sealing lip that it can be slided on each plane, this can guarantee to guarantee simultaneously that in connecting rod 22 sealing big and crankcase between compression chamber 2310 and piston and the cylinder inner wall 237 when making the reciprocal inclination of piston big thus with respect to the cylinder axis gradient sealing ring 236 plays air bleeding valve.
The embodiment of Fig. 5 and refrigerating plant of the present invention shown in Figure 6 and the difference of the embodiment shown in Fig. 1 and Fig. 2 are that the former has an additional cylinder cooling device 51.Because other structure is identical, can be referring to the explanation to Fig. 1 or Fig. 2 to their explanation.The additional cylinder cooling device of compressor 102 is made of the movable highway section 51 that liquid refrigerant flows through.Liquid refrigerant is branched from the link circuit between condenser 2 and the capillary 42, and reverse flow crosses the mobile highway section 51 in the pressure pipeline 5 that is between compressor outlet and the condenser inlet, the highway section of therefore should flowing be branch road be again that reverse flow at the suitable place of structure connects the highway section.Except that mobile highway section 51, also be designed to be communicated with to flow highway section and displacement 2310 (see figure 4)s by a spray-hole at least among Fig. 6.When crank angle was 20 °, above-mentioned spray-hole 25 was in the bottom dead centre top of piston 23.Equally, these pore size distributions are around cylinder wall 237 (see figure 4)s.The form of no ridge rib (gratfrei) is made in the transition in mechanism of qi inwall upper surface and hole as much as possible.
Claims (15)
1, the formation that is used for the family expenses cooling device, filled the refrigerating plant of the kind of refrigeration cycle of cold-producing medium, this device is by a fully closed compressor group, one is connected the on high-tension side condenser of compressor bank, one capillary, the blower fan of the refrigeration space convection current of an evaporimeter that links to each other with capillary and a reinforcement refrigerating plant is formed, above-mentioned capillary link to each other with the outlet side of condenser and with the intake line thermo-contact of compressor bank, above-mentioned evaporimeter links to each other with a latent heat reservoir thermally couple connection and with the suction side of compressor bank, the fluid thermal commutative set that links to each other with air-breathing (44) of compressor bank (10) grow up to be a useful person (40) is led in the outlet that it is characterized in that evaporimeter (3), compressor bank (10) and flexibly be loaded on fluid thermal commutative set in the blimp grow up to be a useful person (40) all be installed on the chassis, the chassis adapts together with the design maximum height of construction package that is assembled and blimp and the base height of cooling device.
2. refrigerating plant as claimed in claim 1 is characterized in that the chassis amounts to 100mm together with the design maximum height of construction package that is assembled and blimp.
3. the totally enclosed type of band outer cover bottom and the outside housing cover unit that contracts, above-mentioned outer cover bottom links to each other each other hermetically with outside housing cover, a drive motors is equipped with in outer cover inside, the power supply of drive motors is introduced hermetically by outside housing cover, it is characterized in that cylinder component (13) links to each other hermetically with outside housing cover (12), wherein, an inlet valve is housed in the cylinder head, the stator group (14) of drive motors (101) is pressed in the outside housing cover (12), a pressure pipeline (5) passes outer cover bottom (11) hermetically and draws outwardly, between outer cover bottom (11) and outside housing cover (12), fixedly mounted a pipe (15), the interior space of pipe communicates with pressure pipeline (5), and communicate by space at least one sheath through hole (16) and the outer cover, pipe (15) is as the bearing shaft of the moving plate group (18) of drive motors (101), the cylindrical plate-like of Upper shaft sleeve (19) of moving plate (18), it is provided with and is used as eccentric wheel with respect to the aforementioned tube eccentric shaft, the connecting-rod bearing (21) surrounds the jacket surface of above-mentioned cylindrical disc, be rigidly connected with pistons reciprocating (23) in cylinder (13) with the rotatable connecting rod (22) that links to each other of the connecting-rod bearing (21), piston (23) is provided with air bleeding valve.
4. fully closed compressor group as claimed in claim 3 is characterized in that moving plate group (18) is formed into suitable rotating mass balance.
5. as claim 3 or 4 described fully closed compressor groups, it is characterized in that air cylinder structure assembly (13) and mobile highway section (51) thermal coupling of flowing through liquid refrigerant.
6. fully closed compressor group as claimed in claim 5 is characterized in that the spray-hole (25) that passes cylinder wall by at least one very little segment distance part on distance piston (23) lower dead point position in above-mentioned mobile highway section (51) holds with the work of piston (23) and communicates.
7. fully closed compressor group as claimed in claim 6, bent corner is about 20 ° of parts above the lower dead point position that being communicated with between the swept volume of it is characterized in that flowing highway section (51) and piston (23) (25) is located at piston (23).
8. coolant compressor is in piston in the cylinder, the compression chamber of cylinder communicates with intake line through an intake valve, piston and reciprocating connecting rod are rigidly connected, be close to cylinder inner wall a sealing lip is arranged, can control the refrigerant flow tube road by means of a valve, during compression stroke, above-mentioned valve is opened flow duct, this valve is closed flow duct during intake stroke, it is characterized in that on reciprocating connecting rod (22), rigidly fixing a bell guide (232), this guide has the boot region (234) of cylindrical axial setting, radially protrude, smooth piston base (233) is in that side towards compression chamber (2310) of guide (232), the edge that leaves piston base (233) of the cylindrical region (234) of guide (232) departs from an angle (235) around cylinder inner wall (237), guide (232) is surrounded by the sealing ring (236) that is slidably disposed on the cylindrical sheath surface (234), the sealing ring has the cylinder inner wall of being close to (237) ring-shaped edge, guide (232) is provided with some through holes (238), the opening of the compression chamber side of these through holes is opened by sealing ring (236) during compression stroke, and during intake stroke, be covered, the crankshaft cavity of compressor (2311) communicates with gases at high pressure outlets (5).
9. piston as claimed in claim 8, the length that it is characterized in that connecting rod (22) is at least 8 times of crank throw.
10. the fluid thermal commutative set of forming by a liquid separator (41) and a suction damper (43) grow up to be a useful person (40), the intake line (6) that is connected in the outlet of evaporimeter of refrigerating plant leads to the aforesaid liquid separator, this separator has a hopper, above-mentioned suction damper is connected that liquid separator (41) is gone up and links to each other with the suction pipe (44) of the compressor (102) of refrigerating plant, wherein, suck damper (43) and constitute inner contra-flow heat exchanger, be provided with a person in charge in above-mentioned hopper, this is responsible for as injecting tubule (45) and communicates with the air inlet pipe (44) of compressor (102).
11. fluid thermal commutative set as claimed in claim 10 is grown up to be a useful person, and it is characterized in that its gas outlet directly links to each other with the air inlet pipe (44) of compressor (102).
12. grow up to be a useful person, it is characterized in that above-mentioned inner contra-flow heat exchanger is made up of the condenser (2) that connects refrigerating plant and the capillary (42) and the intake line (6) of evaporimeter (3) as claim 10 or 11 described fluid thermal commutative sets.
13. fluid thermal commutative set as claimed in claim 12 is grown up to be a useful person, and it is characterized in that capillary (42) is around intake line (6) coiled coil two circles.
14. grow up to be a useful person, it is characterized in that it is a kind of closure, the member of isolating with environment heat as claim 10,11,12 or 13 described fluid thermal commutative sets.
15. fluid thermal commutative set as claimed in claim 14 is grown up to be a useful person, and it is characterized in that it is designed to cylinder blanket.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19916993A DE19916993C1 (en) | 1999-04-15 | 1999-04-15 | Piston for compressor for air conditioning system has a cylinder sealing ring which is caused to moved with a reciprocating motion to open and close the outlet for the compressed fluid |
| DE19916993.4 | 1999-04-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1347490A true CN1347490A (en) | 2002-05-01 |
Family
ID=7904640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00806212A Pending CN1347490A (en) | 1999-04-15 | 2000-04-13 | Refrigerating system for domestic refrigerating appliances |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP1171743A2 (en) |
| JP (1) | JP2002542448A (en) |
| KR (1) | KR20020000799A (en) |
| CN (1) | CN1347490A (en) |
| AU (1) | AU4549000A (en) |
| BR (1) | BR0009796A (en) |
| CA (1) | CA2370346A1 (en) |
| DE (1) | DE19916993C1 (en) |
| WO (1) | WO2000063627A2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107899803A (en) * | 2017-12-26 | 2018-04-13 | 安徽开诚电器有限公司 | A kind of spraying equipment of appliance switch element processing |
| CN117968306A (en) * | 2024-04-01 | 2024-05-03 | 上海东方低碳科技产业股份有限公司 | Integrated energy-saving refrigeration equipment |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3478967B1 (en) * | 2016-06-30 | 2021-04-21 | Graco Minnesota Inc. | Piston pump and seal ring |
| DE102019217779A1 (en) * | 2019-04-26 | 2020-10-29 | Continental Reifen Deutschland Gmbh | Portable / transportable system for sealing and inflating vehicle tires with a straight flow of compressed air |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE643935A (en) * | ||||
| US2530648A (en) * | 1946-09-26 | 1950-11-21 | Harry Alter Company | Combination accumulator, heat exchanger, and metering device for refrigerating systems |
| US3070973A (en) * | 1961-06-16 | 1963-01-01 | Gen Motors Corp | Refrigerating apparatus |
| US3084523A (en) * | 1962-01-30 | 1963-04-09 | Refrigeration Research | Refrigeration component |
| US3283524A (en) * | 1964-03-17 | 1966-11-08 | Byron John Thomson | Refrigeration system |
| US3319577A (en) * | 1965-02-25 | 1967-05-16 | Margrete L Stinnes | Sliding seal and valve for reciprocating pump plunger |
| FR1540705A (en) * | 1967-10-11 | 1968-09-27 | Danfoss As | Shielded motor-compressor, especially for refrigerators |
| US3545891A (en) * | 1968-11-01 | 1970-12-08 | Lennox Ind Inc | Compressor crankshaft arrangement |
| US3563677A (en) * | 1969-04-01 | 1971-02-16 | Carrier Corp | Compressor |
| DE2915848A1 (en) * | 1979-04-19 | 1980-11-06 | Helmut Thurner | Piston for compressor and suction pump - is of PTFE with spring-loaded lip maintaining cylinder wall sealing |
| JPS60164684A (en) * | 1984-02-08 | 1985-08-27 | Hitachi Ltd | Compressor for car air-conditioner |
| DE3616968A1 (en) * | 1986-05-20 | 1987-11-26 | Bosch Gmbh Robert | Nutating-piston compressor |
| JPS63137267U (en) * | 1987-02-27 | 1988-09-09 | ||
| DE3926250A1 (en) | 1989-08-09 | 1991-02-14 | Juergen Mertens | Refrigerator with efficient freezer compartment heat exchanger - has fan circulated thermal exchange between main compartment and freezer requiring small energy input for drive |
| DE9206167U1 (en) | 1992-05-08 | 1993-06-09 | Liebherr-Hausgeräte GmbH, 7955 Ochsenhausen | Refrigerator and/or freezer with a base part |
| JPH0679883A (en) * | 1992-09-02 | 1994-03-22 | Fuji Xerox Co Ltd | Fluid transfer pump |
| DE4243320A1 (en) * | 1992-12-21 | 1994-06-23 | Illbruck Gmbh | Refrigeration cabinets |
| DE4429097A1 (en) * | 1994-08-17 | 1996-02-22 | Thurner Bayer Druckguss | Piston compressor for gaseous media |
| US5669232A (en) * | 1994-11-22 | 1997-09-23 | Sanyo Electric Co., Ltd. | Refrigerating unit |
-
1999
- 1999-04-15 DE DE19916993A patent/DE19916993C1/en not_active Expired - Fee Related
-
2000
- 2000-04-13 KR KR1020017013066A patent/KR20020000799A/en not_active Application Discontinuation
- 2000-04-13 JP JP2000612681A patent/JP2002542448A/en active Pending
- 2000-04-13 BR BR0009796-9A patent/BR0009796A/en not_active Application Discontinuation
- 2000-04-13 AU AU45490/00A patent/AU4549000A/en not_active Abandoned
- 2000-04-13 WO PCT/EP2000/003356 patent/WO2000063627A2/en not_active Application Discontinuation
- 2000-04-13 EP EP00926921A patent/EP1171743A2/en not_active Withdrawn
- 2000-04-13 CN CN00806212A patent/CN1347490A/en active Pending
- 2000-04-13 CA CA002370346A patent/CA2370346A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107899803A (en) * | 2017-12-26 | 2018-04-13 | 安徽开诚电器有限公司 | A kind of spraying equipment of appliance switch element processing |
| CN117968306A (en) * | 2024-04-01 | 2024-05-03 | 上海东方低碳科技产业股份有限公司 | Integrated energy-saving refrigeration equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19916993C1 (en) | 2000-02-10 |
| JP2002542448A (en) | 2002-12-10 |
| KR20020000799A (en) | 2002-01-05 |
| BR0009796A (en) | 2002-03-26 |
| WO2000063627A2 (en) | 2000-10-26 |
| EP1171743A2 (en) | 2002-01-16 |
| AU4549000A (en) | 2000-11-02 |
| WO2000063627A3 (en) | 2001-03-15 |
| CA2370346A1 (en) | 2000-10-26 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |