CN1297790C - Four way valve and ice-making machine using the valve - Google Patents
Four way valve and ice-making machine using the valve Download PDFInfo
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- CN1297790C CN1297790C CNB2003101044920A CN200310104492A CN1297790C CN 1297790 C CN1297790 C CN 1297790C CN B2003101044920 A CNB2003101044920 A CN B2003101044920A CN 200310104492 A CN200310104492 A CN 200310104492A CN 1297790 C CN1297790 C CN 1297790C
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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
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C1/00—Producing ice
- F25C1/10—Producing ice by using rotating or otherwise moving moulds
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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
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
- F25B41/26—Disposition of valves, e.g. of on-off valves or flow control valves of fluid flow reversing valves
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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
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C5/00—Working or handling ice
- F25C5/02—Apparatus for disintegrating, removing or harvesting ice
- F25C5/04—Apparatus for disintegrating, removing or harvesting ice without the use of saws
- F25C5/08—Apparatus for disintegrating, removing or harvesting ice without the use of saws by heating bodies in contact with the ice
- F25C5/10—Apparatus for disintegrating, removing or harvesting ice without the use of saws by heating bodies in contact with the ice using hot refrigerant; using fluid heated by refrigerant
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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
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C2600/00—Control issues
- F25C2600/04—Control means
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Multiple-Way Valves (AREA)
Abstract
The present invention relates to a four-way valve and an ice making machine of the four-way valve. A main valve of the four-way valve comprises a slide seat which is integrated with a valve body, and a valve core of the four-way valve can move at the first position and the second position. The valve core comprises a slide block, wherein the slide block can slide on the slide seat; the surface of the slide block, which corresponds to the sliding surface of the slide seat, is provided with a concave cavity. A first port is formed on the valve body, a second port, and a third port and a fourth port are formed on the slide seat along the slide direction of the slide block. Flanges which approach to the slide seat are arranged in the ports, and the radial directions of the flanges inwards and convexly extend. The concave cavity at most causes adjacent two ports of the second port, the third port and the fourth port to communicate when the slide block slides between the first position and the second position, and thereby, the second port, the third port and the fourth port are simultaneously communicated. The present invention prevents the leakage between a high-voltage side and a low-voltage side.
Description
Technical field
The present invention relates to a kind of cross valve that is used for refrigerant-cycle systems, relate in particular to the main valve that is used for cross valve.The invention still further relates to a kind of ice machine that uses this cross valve.
Background technology
Conventional cross valve is widely used for for example refrigerant-cycle systems of refrigeration system, so that change the flow path of cold-producing medium.Fig. 9 a shows the main valve of the cross valve that is used for refrigerant-cycle systems of prior art.Wherein, slide block 103a is sliding between the primary importance and the second place on the slide 25a, and when primary importance, slide block 103a slides into the left side, and first port 93 is communicated with the 4th port 97, the 3rd port 96 is being communicated with second port 95; When the second place, slide block 103a slides into the right side, and first port 93 is communicated with the 4th port 97 with second port 95, the 3rd port 96.
Yet if the required refrigerating capacity of refrigeration system is less, it is less usually to have the refrigerant fluid that the refrigeration system of this cross valve charges into, and therefore the pressure that is acted on the piston element 26 by cold-producing medium is less.It is slower to slide when this makes slide block 103a on slide 25a, therefore may be in such position between two kinds of positions in the process that slide block 103a moves, that is, make second port 95, the 3rd port 96 and the 4th port 97 be communicated with simultaneously, shown in Fig. 9 a.In this case, because the pipeline that links to each other with a port in the above-mentioned port is in high pressure, and the pipeline that links to each other with another port in the above-mentioned port is in low pressure, so the high-pressure refrigerant fluid in the pipeline is communicated with the low pressure refrigerant fluid, and the high-pressure refrigerant fluid after the compression leaks in the low pressure line, and so-called " short circuit " phenomenon has taken place.This causes this slide block 103a to rest on position shown in Fig. 9 a, and this refrigeration system is with cisco unity malfunction like this.
If the refrigerating capacity of ice machine is less, then this ice machine can not use cross valve to carry out flow of refrigerant control.Conventional ice machine uses two magnetic valve W1, W2 to replace cross valve to control usually, shown in Fig. 2 a and 2b.Owing to introduce more parts and pipeline, for example magnetic valve W1, W2, reservoir 0 or the like are so the reliability of the refrigeration system of this conventional ice machine and parts utilization rate have reduced.In addition, because after ice-making process finishes, ice machine need switch to heating mode from refrigeration mode, so that ice is split away off from ice-making component (being evaporimeter T), so, if parts and pipeline are many more, then refrigerant fluid switches the power loss that produced and flow losses are just big more between high pressure and low pressure in handoff procedure, thereby has further reduced the efficient of this refrigeration system.
Summary of the invention
In order to overcome or to alleviate related problem of prior art and shortcoming, the invention provides a kind of improved cross valve and a kind of ice machine that uses this cross valve.
According to one aspect of the present invention, a kind of improved cross valve is provided, it comprises: be used for determining the main valve of refrigerant flowpath, be used to handle the pilot valve of this main valve; With the solenoid that is used to control this pilot valve.This main valve comprises: the valve pocket that is formed by valve body; With this valve body all-in-one-piece slide; The spool that comprises the slide block that can on this slide, slide, wherein this slide block is formed with a cavity in the face of on the slidingsurface of this slide; Be formed on first port on this valve body and be formed on second port, the 3rd port and the 4th port on this slide along the glide direction of this slide block; The sliding support that in this valve pocket, is connected with this slide block, piston element is connected with this sliding support in the both sides of this sliding support respectively, and described piston element is assemblied in this valve pocket and closely cooperate with the wall of this valve pocket, so that make this piston element in valve pocket, to move back and forth, make this spool in this valve body, between the primary importance and the second place, to move thus with this sliding support and this slide block with being integral.In this primary importance, this first port is communicated with through main valve chamber with the 4th port, and this second port is communicated with through this cavity with the 3rd port; In this second place, this first port is communicated with through main valve chamber with this second port, and the 3rd port is communicated with through this cavity with the 4th port.Second, third, at least one port in the 4th port is provided with the inside protuberance of projection radially in the position near this slide, this protuberance is configured to: so that the arbitrary position in the process of guaranteeing to slide between this first and second position when this slide block, this cavity makes that at the most two adjacent ports are communicated with in the described port.
Therefore, second, third, the 4th port can not be communicated with simultaneously, thereby prevent the leakage between high-pressure side and the low-pressure side, avoided the fault of refrigerant-cycle systems, also improved the efficient and the reliability of this system simultaneously.
According to another aspect of the present invention, a kind of ice machine with refrigerant-cycle systems is provided, this refrigerant-cycle systems comprises: the compressor that is used for compressed refrigerant; Be used to make this compressed condensation of refrigerant and to the condenser of extraneous heat rejection and removal; Capillary; Evaporate and absorb the evaporimeter of heat therein with cold-producing medium, this evaporimeter is as the ice-making component of this refrigeration machine, and wherein this refrigerant-cycle systems comprises according to cross valve of the present invention, so that in ice-make mode with deice between the pattern and switch.
Description of drawings
When reading the detailed description of specific embodiments of the invention in conjunction with the accompanying drawings, can understand the preferred embodiments of the present invention and others better, in the accompanying drawings:
Fig. 1 shows conventional magnetic valve;
Fig. 2 a and 2b are to use the schematic diagram of the refrigerant-cycle systems of conventional magnetic valve, and it shows refrigeration mode and heating mode respectively;
Fig. 3 a and 3b are the schematic diagrames of cross valve of the present invention, and it shows the situation of solenoid outage and energising respectively;
Fig. 4 a and 4b are to use the schematic diagram of the refrigerant-cycle systems of cross valve of the present invention, and this shown system is in refrigeration mode and heating mode respectively;
Fig. 5 is to use the schematic diagram of critical piece of the ice machine of cross valve of the present invention;
Fig. 6 shows the pilot valve of cross valve of the present invention;
Fig. 7 a and 7b show the main valve of cross valve of the present invention, and Fig. 7 c is the side view of this cross valve;
Fig. 8 is the slide block bottom view of cross valve;
Fig. 9 a shows the main valve of conventional cross valve;
Fig. 9 b shows the main valve of cross valve of the present invention;
Figure 10 is the perspective view of ice machine of the present invention;
Figure 11 shows the critical piece of ice machine of the present invention;
Figure 12 shows the evaporimeter of ice machine of the present invention;
Figure 13 shows the water storage case and the ice shoveling plate of ice machine of the present invention;
Figure 14 shows the motor that is connected with inner casing;
Figure 15 shows the photoelectric detection system that is used for ice machine of the present invention; With
Figure 16 is the schematic diagram that water storage case rotates between the two positions.
In the accompanying drawings, identical Reference numeral is represented parts identical or equivalence.
The specific embodiment
Shown in Fig. 3 a, 3b, 7a and 7b, cross valve M of the present invention comprises pilot valve X, main valve Y and solenoid Z.The valve pocket that main valve Y has valve body 20 and formed by this valve body 20.In valve pocket, slide 25 is integrally formed into valve body 20.Slide block 103 can reciprocatingly slide on this slide 25, and wherein the sliding-contact surface 31 in the face of slide 25 of this slide block 103 is provided with a cavity 30.
Two piston elements 26 are connected with this slide block 103 in the both sides of this slide block 103 respectively.These two piston elements 26 are assemblied in this valve pocket to cooperate with the wall of this valve pocket, and these two piston elements 26 can move back and forth in valve pocket with this slide block 103 with being integral, that is, can and be between the second place of valve body 20 right parts in the primary importance that is in valve body 20 left parts and move.These two piston elements 26 are divided into three parts with valve pocket, that is, and and first valve pocket 94 that limits by left hand piston element and valve body, the main valve chamber 120 that limits by two piston elements and valve body, and second valve pocket 98 that limits by right hand piston element and valve body.
The operation of cross valve M below will be described.Shown in Fig. 3 a and 7a, when solenoid Z is in off-position, the spool 101 of pilot valve X moves to drawing left side under the effect of spring 102, enters main valve Y and enters second valve pocket 98 of main valve Y through capillary 90, pilot valve X and capillary 100 through first port 93 at refrigerant-cycle systems mesohigh refrigerant fluid.The pressure of the high-pressure refrigerant in second valve pocket 98 is applied on the right hand piston element, and makes and to comprise that this spool of two piston elements 26 and slide block 103 moves to the primary importance of the left part of valve body integratedly.Cold-producing medium in first valve pocket 94 can flow into the 3rd port 96 through capillary 91, pilot valve X and capillary 99.When primary importance, first port 93 is communicated with the 4th port 97 through main valve chamber 120; Second port 95 is communicated with the 3rd port 96 through the cavity 30 of slide block 103.At this moment, refrigerant fluid at flow path among the cross valve M shown in Fig. 3 a.
Shown in Fig. 3 b and 7b, when solenoid Z is in "on" position, the spool 101 of pilot valve X is at this spring 102 of effect lower compression of the electromagnetic force of solenoid Z generation, so that move, enter main valve Y and enter first valve pocket 94 of main valve Y through capillary 90, pilot valve X and capillary 91 through port 93 at refrigerant-cycle systems mesohigh refrigerant fluid to the figure right side of face.The pressure of the high-pressure refrigerant in first valve pocket 94 is applied on the left hand piston element, and makes and to comprise that this spool of two piston elements 26 and slide block 103 moves to the second place of the right part of valve body integratedly.Cold-producing medium in second valve pocket 98 can flow into the 3rd port 96 through capillary 100, pilot valve X and capillary 99.When the second place, first port 93 is communicated with second port 95 through main valve chamber 120; The 4th port 97 is communicated with the 3rd port 96 through the cavity 30 of slide block 103.At this moment, refrigerant fluid at flow path among the cross valve M shown in Fig. 3 b.
As mentioned above, solenoid Z according to cross valve M is in outage or "on" position, the spool of main valve Y with and slide block can be in the primary importance or the second place, like this, make four ports of this cross valve M and pipeline thereof between a kind of flow regime and another kind of flow regime, switch.
The refrigerant-cycle systems of ice machine of the present invention below will be described.Shown in Fig. 4 a, 4b, 5,11, this refrigerant-cycle systems comprises compressor R, condenser S, evaporimeter T, capillary N and cross valve M of the present invention.This system charges into refrigerant fluid, for example R-134a subsequently more earlier through vacuumizing.
This refrigerant-cycle systems switches to refrigeration mode when the needs ice making, i.e. ice-make mode.Shown in Fig. 4 a, under the control of control module that for example is single-chip microcomputer, the solenoid Z of cross valve M is in off-position, and as mentioned above, the spool of this cross valve M is in primary importance, and the port 93 of winning is communicated with the 4th port 97; Second port 95 is communicated with the 3rd port 96.Higher pressure refrigerant gas is discharged from the exhaust end U of compressor R, and 105 first ports 93 that at first enter cross valve M by the road, flow to the 4th port 97 through the hole 108 that is on the piston holder in the main valve chamber 120 of main valve Y again, second port 95 and the 3rd port 96 and the pipeline 106 of condenser S, capillary N, evaporimeter T, pipeline 107, main valve Y successively by the road 109 subsequently,, be circulated back to the low pressure air suction end V of compressor R at last, so that finish a closed circuit.The low pressure refrigerant that enters compressor R is compressed into high-pressure refrigerant in this compressor R, and discharges from exhaust end U, begins new circulation thus.Wherein, first port 93 and the 4th port 97 export as high-pressure refrigerant inlet and the high-pressure refrigerant of cross valve M respectively.Second port 95 and the 3rd port 96 export as low pressure refrigerant inlet and the low pressure refrigerant of cross valve M respectively.Those of ordinary skill in the art should be appreciated that whole refrigerant-cycle systems moves in the steam compressed mode of routine.In this ice-make mode, refrigerant fluid is discharged heat on the heat exchange surface of condenser S, and absorbs heat on the heat exchange surface of evaporimeter T, makes that near the water-setting the heat exchange surface of evaporimeter T build-ups ice.
When ice is agglomerated to predetermined extent on the heat exchange surface of evaporimeter T, when this refrigerant-cycle systems switches to heating mode, promptly deice pattern.Shown in Fig. 4 b, under the control of control module that for example is single-chip microcomputer, the solenoid Z of cross valve M is in "on" position, and as mentioned above, the spool of this cross valve M is in the second place, and the port 93 of winning is communicated with second port 95; The 4th port 97 is communicated with the 3rd port 96.Higher pressure refrigerant gas is discharged from the exhaust end U of compressor R, and 105 first ports 93 that at first enter cross valve M by the road, flow to second port 95 through the hole 110 that is on the piston holder in the main valve chamber 120 of main valve Y again, the 4th port 97 and the 3rd port 96 and the pipeline 106 of evaporimeter T, capillary N, condenser S, pipeline 109, main valve Y successively by the road 107 subsequently,, be circulated back to the low pressure air suction end V of compressor R at last, so that finish a closed circuit.The low pressure refrigerant that enters compressor R is compressed into high-pressure refrigerant in this compressor R, and discharges from exhaust end U, begins new circulation thus.Wherein, first port 93 and second port 95 export as high-pressure refrigerant inlet and the high-pressure refrigerant of cross valve M respectively.The 4th port 97 and the 3rd port 96 export as low pressure refrigerant inlet and the low pressure refrigerant of cross valve M respectively.Those of ordinary skill in the art should be appreciated that whole refrigerant-cycle systems moves in the steam compressed mode of routine.Deice in the pattern at this, refrigerant fluid is discharged heat on the heat exchange surface of evaporimeter T, and absorbs heat on the heat exchange surface of condenser S, and the ice-out that condenses on the feasible heat exchange surface near evaporimeter T is so that make ice cube split away off.
This refrigerant-cycle systems is controlled by the electric power that control module switches on or off the solenoid Z that supplies to cross valve M in ice-make mode and the switching that deices pattern.Also can control in ice-make mode and the running time that deices under the pattern by this control module.In a preferred embodiment of the invention, this control module comprises single-chip microcomputer.Certainly, those of ordinary skill in the art should be appreciated that the control device that also can use other form realizes above effect.In a preferred embodiment of the invention, the ice making time for example is set at 12,15,18 minutes; The time that deices for example is set at 1.5 minutes.Certainly, also can be according to other factors, for example the temperature of environment temperature and water is regulated the ice making time and is deiced the time.
In the process that slide block 103 moves between this primary importance and this second place, be communicated with simultaneously for fear of second port 95, the 3rd port 96 and the 4th port 97, at least one port in these ports is provided with the inside flange 121 of projection radially in the position near slide 25.This flange is configured to and makes when the arbitrary position of slide block 103 between first and second positions, being formed on slide block 103 is communicated with in the face of the cavity 30 on the slidingsurface 31 of slide 25 makes two the adjacent ports in second port 95, the 3rd port 96 and the 4th port 97 at the most, thereby avoided described situation about being communicated with simultaneously to take place, prevented that thus high-pressure refrigerant from leaking into the low pressure refrigerant side.Preferably, be in second port 95, the 3rd port 96 and the 4th port 97 in position and be provided with flange 121 near slide 25.Shown in Fig. 9 b, even when slide block 103 is in the middle position of slide 25, these three ports are not communicated with simultaneously yet, prevent that thus the high-pressure refrigerant fluid from leaking in the low pressure line, thereby have avoided the reduction of refrigerating efficiency.
In a preferred embodiment of the invention, second port 95, the 3rd port 96 and the 4th port 97 are the roughly the same circular port of radius, and are arranged on the slide 25 with becoming a row equally spacedly and vertically.As mentioned above, under the control of pilot valve X, slide block 103 vertically slides into the primary importance or the second place with spool along this on slide 25.In this case, this is formed on slide block 103, and size is so definite longitudinally along this in the face of the cavity 30 on the slidingsurface 31 of slide 25, promptly, this size be not more than the twice of port radius and the summation of the spacing between this two port centers (promptly≤2r+d, wherein r is a radius, and d is the spacing between the port center), the twice that should be not more than this spacing simultaneously deduct the numerical value of the twice of this radius (promptly≤2d-2r, wherein r is a radius, and d is the spacing between the port center).At this moment, even this at least one port is not provided with flange 121 near slide 25, this size of this cavity 30 is communicated with when also can avoid this three ports 95,96,97.Certainly, it is more preferred this flange being set simultaneously.Those of ordinary skill in the art should be appreciated that this flange can replace with other equivalents, for example stage portion, convex, projection and protuberance etc.Those of ordinary skill in the art is communicated with when should be appreciated that and can also can prevent three ports 95,96,97 by the size of dwindling described port according to the present invention.But in some cases, port sizes is dwindled and has been hindered the mobile of cold-producing medium and increased pressure drop, and this efficient for whole refrigeration system is disadvantageous.On the contrary, according to the present invention, can under the situation of the size that does not reduce described port, realize beneficial technical effects of the present invention.
In use, for the refrigerant-cycle systems that uses the R-134a cold-producing medium, the high side pressure of the exhaust end U of compressor R reaches 1.5MPa, and the low-pressure lateral pressure of the suction end V of compressor R has only 0.1MPa.Although the pressure reduction between these two pressure is very big, measuring, leakage rate is not more than 50ml/min between the slidingsurface 31 of process slide block 103 and the slide 25.This leakage rate is very little, can think basically " not leaking ".
In a further advantageous embodiment, shown in Fig. 7 a and 7b, between slide block 103 and piston holder 23, be provided with a reed 24, the elastic force of this reed 24 presses against this slide block 103 on the slide 25, thereby reduced gap therebetween, arrived the leakage of low-pressure side to prevent the high-pressure side.
In another preferred embodiment, slide 25 and slide block 103 in the face of the slidingsurface 31 of this slide 25 by fine finishining, thereby have higher plane precision.This makes slide block 103 and slide 25 tightr being abutted against each other together, thereby has further reduced gap therebetween, arrives the leakage of low-pressure side to prevent the high-pressure side.
Another aspect of the present invention is to use the ice machine according to cross valve of the present invention.The above refrigerant-cycle systems of having described this ice machine with reference to Fig. 4 a and 4b.Cross valve of the present invention is used to make this refrigerant-cycle systems to switch between refrigeration and heating mode, promptly in ice-make mode with deice between the pattern and switch.Owing to adopted according to cross valve of the present invention, ice machine of the present invention can switch between refrigeration and heating mode apace, prevent that the high-pressure refrigerant fluid from leaking in the low pressure line, thereby eliminated the defective of prior art, thereby avoided the fault of refrigerant-cycle systems; Reduce the parts that use on the other hand, improved the efficient and the reliability of this system.Under the same conditions, through measuring, the ice-making capacity that has the ice machine of cross valve of the present invention compares high about 50% than the conventional ice machine that uses magnetic valve.
The others of ice machine of the present invention below will be described.
As shown in figure 11, cross valve M of the present invention and refrigerant-cycle systems are installed in the icemaker.Pipeline is connected with port 93,95,96,97 solderings, and is fixed on icemaker by metallic support G.This metallic support G locates the main valve Y of cross valve M fastening in the top, and is fixed at lower end on the base plate H of ice machine, is securely fixed in the housing to guarantee cross valve M.
Shown in Figure 11,12 and 13, the parts that are used for ice making comprise evaporimeter T, water storage case 51 and ice shoveling plate 53 etc.Figure 12 shows evaporimeter T, and it comprises a U-shaped pipe 46, a plurality of icing pipe 48, support 47 and inlet/outlet pipe 49.A plurality of icing pipes 48 seal at its lower end, and locate in the top to be connected with U-shaped pipe 46 by soldering.In each junction, U-shaped pipe 46 is provided with porose (not shown), so that make U-shaped pipe 46 and each freeze pipe 48 in internal communication.Water storage case 51 comes water filling by water pump unit (not shown), so that the pipe 48 that freezes is in below the water surface.
Shown in Figure 14,15, water storage case 51 is positioned at the inside of inner casing I.This inner casing I is fixed on the base plate H.The axle of stretching from an epitaxial lateral overgrowth of water storage case 51 54 passes inner casing I, and this axle 54 is integral with water storage case 51.Detector bracket 37 is fixed on the side of this inner casing I.Anti-dazzling screen 36 is arranged on from water storage case 51 outward extending axles 54. Photoelectric detector 35,38 is arranged on the two ends of detector bracket 37.This photoelectric detection system is formed by anti-dazzling screen 36, detector bracket 37 and photoelectric detector 35,38.In addition, a motor J is fixed on the opposite side of inner casing I.The axle of this motor J cooperates with the adapter 55 on the opposite side that is arranged on water storage case 51 integratedly, so that make motor J drive this water storage case 51 rotations.
When ice-make mode, water storage case 51 is arranged in the position shown in the double dot dash line K of Figure 16.This moment is because there is low-temperature refrigerant in icing the pipe in 48, so the water around the pipe 48 that freezes is frozen into ice, with the formation icicle.When icicle reached predetermined extent, the control module of ice machine provided a signal, made motor J drive water storage case 51 and was rotated counterclockwise around axle 54 and adapter 55 with anti-dazzling screen 36.During position shown in the dotted line L, anti-dazzling screen 36 is detected by photoelectric detector 38 in rotating to Figure 16, and this moment, control module provided a signal, made motor J stop, and makes the solenoid Z energising of cross valve M, thereby switches to the pattern of deicing.In the pattern of deicing, owing to have high temperature refrigerant in the pipe 48 that freezes, so the ice-out around the pipe 48 that freezes, the ice of hollow tubular splits away off from the pipe 48 that freezes.When deicing end, control module provides a signal, makes motor J drive water storage case 51 and turns clockwise around axle 54 and adapter 55 with anti-dazzling screen 36.During position shown in the double dot dash line K, anti-dazzling screen 36 is detected by photoelectric detector 35 in rotating to Figure 16, and this moment, control module provided a signal, made motor J stop, and makes the solenoid Z outage of cross valve M, so that switch to ice-make mode once more.The water pump unit is water filling in ice bank 51 once more, so that begin next ice-making process.Drive water storage case 51 at motor J and turn clockwise in the process, the ice shoveling plate 53 hinged with water storage case 51 shovels ice cube in the ice bank B along direction shown in the arrow among Figure 16.
Ice machine of the present invention can make things convenient for and make apace can be edible or the ice cube of chilled food.But this ice machine family expenses or commercialization, for example bar and dining room etc.
Though described the present invention in conjunction with the preferred embodiments, those of ordinary skills can carry out modification and replacement without departing from the scope of the invention.Therefore, the present invention comprise subsequently claim and whole modification and the replacement in the protection domain of its equivalents.
Other components list
10 pilot valve bodies, 29 embedded steel ring 84 pipelines eight
11 pilot valve slide 30a cavitys, 85 pipelines nine
12 pilot valve slide block 31a contact surfaces, 86 pipelines ten
13 pilot valve filter screens, 52 articulated elements N1 capillaries one
14 pilot valve reeds, 65 pipelines, one N2 capillary two
15 pilot valve slider brackets, 66 pipelines, two A water tanks
17 screws, 78 pipelines, three B ice storage boxes
22 interior stator 79 pipelines four C operation push-button plates
27 piston support sections, 80 pipelines, five D transparent windows
28 form position 81 pipelines, the six E housings of protuberance
28a does not have the situation 82 pipelines seven F portable plates of protuberance
Claims (11)
1. cross valve (M) that is used for refrigerant-cycle systems, it comprises:
Be used for determining the main valve (Y) of refrigerant flowpath, be used to handle the pilot valve (X) of this main valve; With the solenoid that is used to control this pilot valve (Z),
This main valve (Y) comprising:
The valve pocket that forms by valve body (20);
With this valve body (20) all-in-one-piece slide (25);
Comprise the spool that can go up the slide block (103) that slides at this slide (25), wherein this slide block (103) is formed with a cavity (30) in the face of on the slidingsurface (31) of this slide (25);
Be formed on first port (93) on this valve body (20) and be formed on second port (95), the 3rd port (96) and the 4th port (97) on this slide (25) along the glide direction of this slide block (103);
The sliding support (23) that in this valve pocket, is connected with this slide block (103), piston element (26,26) is connected with this sliding support in the both sides of this sliding support (23) respectively, and described piston element is assemblied in this valve pocket and with the wall of this valve pocket and cooperates, so that make this piston element in valve pocket, to move back and forth with this sliding support (23) and this slide block (103) with being integral, make this spool between the inherent primary importance of this valve body (20) and the second place, to move thus
In this primary importance, this first port (93) is communicated with through main valve chamber (120) with the 4th port (97), and this second port (95) is communicated with through this cavity (30) with the 3rd port (96); In this second place, this first port (93) is communicated with through main valve chamber (120) with this second port (95), and the 3rd port (96) is communicated with through this cavity (30) with the 4th port (97),
It is characterized in that, described second, third, at least one port in the 4th port (95,96,97) is provided with the inside protuberance of projection radially in the position near this slide, this protuberance is configured to: so that the arbitrary position in the process of guaranteeing to slide between this first and second position when this slide block (103), this cavity (30) makes that at the most two adjacent ports are communicated with in the described port.
2. cross valve as claimed in claim 1 is characterized in that, this second, third, the 4th port is provided with this protuberance in (95,96,97), and this protuberance is at least one flange (121).
3. cross valve as claimed in claim 1, it is characterized in that, described second port (95), the 3rd port (96) and the 4th port (97) are the identical circular port of radius, and be arranged on this slide (25), the described cavity (30) that is formed on this slidingsurface (31) of this slide block (103) is sized to the twice that is not more than the port radius and the summation of the spacing between this two port centers longitudinally along this with becoming a row equally spacedly and vertically.
4. cross valve as claimed in claim 3, it is characterized in that, described second port (95), the 3rd port (96) and the 4th port (97) are the identical circular port of radius, and be arranged on this slide (25), the described cavity (30) that is formed on this slidingsurface (31) of this slide block (103) is sized to longitudinally that the twice that is not more than described spacing deducts the twice of radius and the numerical value that obtains along this with becoming a row equally spacedly and vertically.
5. as claim 1,2,3 or 4 described cross valves, it is characterized in that, between this slide block (103) and this slider bracket (23), be provided with a reed (24), the elastic force of this reed (24) presses against on this slide (25) this slide block (103), thereby reduced gap therebetween, arrived the leakage of low-pressure side to prevent the high-pressure side.
6. cross valve as claimed in claim 5 is characterized in that, in the use of this cross valve (M), for using the R-134a cold-producing medium, is not more than 50ml/min through this slidingsurface (31) of this slide block (103) and the leakage rate between this slide (25).
7. ice machine with refrigerant-cycle systems, this refrigerant-cycle systems comprises:
The compressor (R) that is used for compressed refrigerant;
Be used to make this compressed condensation of refrigerant and to the condenser (S) of extraneous heat rejection and removal;
Capillary (N); With
Cold-producing medium evaporates and absorbs the evaporimeter (T) of heat therein, and this evaporimeter is as the ice-making component of this refrigeration machine,
It is characterized in that this refrigerant-cycle systems comprises as each the described cross valve (M) among the claim 1-5, so that in ice-make mode with deice between the pattern and switch.
8. ice machine as claimed in claim 7, it is characterized in that, this evaporimeter (T) comprises a U-shaped pipe (46), a plurality of icing pipe (48), support (47) and inlet tube and outlet, and a plurality of icing pipes (48) seal and locate in the top to be connected with U-shaped pipe (46) at its lower end, in each junction, U-shaped pipe (46) is communicated with each pipe (48) that freezes.
9. ice machine as claimed in claim 7, it is characterized in that, this ice machine comprises water storage case (51), a plurality of icing pipes (48) are under the water surface in this water storage case (51), and this ice machine also comprises a motor (J), and after ice-making process finished, this motor (J) drove this water storage case (51) and leaves from the initial position rotation, and this ice machine enters the pattern of deicing, so that ice cube comes off; After the process that deices finished, this motor (J) drove this water storage case (51) rotation and turns back to this initial position.
10. ice machine as claimed in claim 9, it is characterized in that, it also comprises photoelectric detection system, this photoelectric detection system comprises anti-dazzling screen (36), detector bracket (37) and photoelectric detector (35,38), wherein anti-dazzling screen (36) with this water storage case (51) by this motor (J) thus driving rotate, this photoelectric detector (35,38) can sense the rotation of this anti-dazzling screen (36), controls this motor (J) by control module thus.
11., it is characterized in that as claim 9 or 10 described ice machines, drive this water storage case (51) rotation at motor (J) and turn back in this initial position process, the ice cube that will come off with the hinged ice shoveling plate (53) of this water storage case (51) shovels in the ice bank (B).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101044920A CN1297790C (en) | 2003-10-30 | 2003-10-30 | Four way valve and ice-making machine using the valve |
| DE202004004202U DE202004004202U1 (en) | 2003-10-30 | 2004-03-10 | Four-way valve and ice machine with such a four-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101044920A CN1297790C (en) | 2003-10-30 | 2003-10-30 | Four way valve and ice-making machine using the valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1540268A CN1540268A (en) | 2004-10-27 |
| CN1297790C true CN1297790C (en) | 2007-01-31 |
Family
ID=34333526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101044920A Expired - Fee Related CN1297790C (en) | 2003-10-30 | 2003-10-30 | Four way valve and ice-making machine using the valve |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1297790C (en) |
| DE (1) | DE202004004202U1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005003237A1 (en) | 2005-01-24 | 2006-07-27 | BSH Bosch und Siemens Hausgeräte GmbH | Ice maker, tray and operating method for it |
| DE102005003238A1 (en) * | 2005-01-24 | 2006-07-27 | BSH Bosch und Siemens Hausgeräte GmbH | Ice makers |
| DE102005003242A1 (en) | 2005-01-24 | 2006-07-27 | BSH Bosch und Siemens Hausgeräte GmbH | Ice makers |
| CN107237900A (en) * | 2016-03-29 | 2017-10-10 | 珠海华宇金属有限公司 | A kind of flat spring and four-way reversing valve |
| CN108775728B (en) * | 2018-07-20 | 2023-08-04 | 珠海格力电器股份有限公司 | Multi-split water chiller-heater unit |
| JP7469789B2 (en) * | 2019-12-25 | 2024-04-17 | アクア株式会社 | Ice maker and refrigerator equipped with ice maker |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS578367A (en) * | 1980-06-17 | 1982-01-16 | Seiichi Yamashita | Power generation using hydraulic power of water supply |
| US4976286A (en) * | 1989-12-14 | 1990-12-11 | Automatic Switch Company | Four-way slide valve |
| JPH07151251A (en) * | 1993-12-01 | 1995-06-13 | Saginomiya Seisakusho Inc | Valve element for four-way selector valve and manufacture thereof |
| CN2342331Y (en) * | 1998-07-21 | 1999-10-06 | 鲍士雄 | Small ice making machine |
| CN1057155C (en) * | 1992-09-09 | 2000-10-04 | 株式会社日立制作所 | Air conditioning apparatus |
| CN2490378Y (en) * | 2001-06-25 | 2002-05-08 | 浙江三花集团有限公司 | Bistable electromagnetic four-way change valve |
-
2003
- 2003-10-30 CN CNB2003101044920A patent/CN1297790C/en not_active Expired - Fee Related
-
2004
- 2004-03-10 DE DE202004004202U patent/DE202004004202U1/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS578367A (en) * | 1980-06-17 | 1982-01-16 | Seiichi Yamashita | Power generation using hydraulic power of water supply |
| US4976286A (en) * | 1989-12-14 | 1990-12-11 | Automatic Switch Company | Four-way slide valve |
| CN1057155C (en) * | 1992-09-09 | 2000-10-04 | 株式会社日立制作所 | Air conditioning apparatus |
| JPH07151251A (en) * | 1993-12-01 | 1995-06-13 | Saginomiya Seisakusho Inc | Valve element for four-way selector valve and manufacture thereof |
| CN2342331Y (en) * | 1998-07-21 | 1999-10-06 | 鲍士雄 | Small ice making machine |
| CN2490378Y (en) * | 2001-06-25 | 2002-05-08 | 浙江三花集团有限公司 | Bistable electromagnetic four-way change valve |
Also Published As
| Publication number | Publication date |
|---|---|
| DE202004004202U1 (en) | 2004-05-19 |
| CN1540268A (en) | 2004-10-27 |
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