Disclosure of the Invention
The problem to be solved in the present invention
Downward flow type ice making machine is constructed as follows and formed: conveying end is formed at the front surface at ice house, and utilizes and to insert indoor spoon etc. by this conveying end ice cube is taken out.In this case, the storage ice detecting device is positioned at the position that can touch the spoon that inserts by conveying end etc., and therefore spoon etc. can touch the storage ice detecting device when taking out ice cube, causes this storage ice detecting device to be damaged.
If when ice storing cabin takes out ice cube, only be removed at the ice cube of storing ice detecting device one side, have only the ice cube of this side reducing so, even consequently ice storing cabin is full of ice basically, the storage ice detecting device does not detect full ice state yet, and will restart ice making deicing operation.In this case, do not taking out a side of ice cube, ice cube is accumulated to the position at ice making sheets place, makes to have stoped after this ice cube by downward flow type ice making unit manufacturing to fall from ice making sheets, and this causes the repetition ice making, thereby causes fault.
The present invention has been proposed for this reason, suitably solving conventional downward flow type ice making machine built in problem, and, the object of the present invention is to provide a kind ofly can prevent to store that ice detecting device is damaged and can suppress the downward flow type ice making machine that fault takes place.
The method of dealing with problems
In order to overcome these problems and suitably to accomplish the end in view, downward flow type ice making machine according to the theme of claim 1 is following downward flow type ice making machine, it has ice house, downward flow type ice making unit and collecting mechanism: ice house has the ice storing cabin that is limited to wherein with the storage ice cube, and the conveying end that is formed on the ice cube of front side; Downward flow type ice making unit to be being arranged on the top in the ice storing cabin in the upwardly extending mode of right and left, and to flow down the ice making water ice making that mode is supplied with; Collecting mechanism is arranged on the below of downward flow type ice making unit, with will in downward flow type ice making unit, be used for the ice making water of ice making collect, it is characterized in that,
Detect ice storing cabin's medium floe is arranged on collecting mechanism with the storage ice detecting device of completely ice state storage rear.
According to the theme in the claim 1, collecting mechanism can stop and inserts spoon in the ice storing cabin etc. by conveying end and contact with the storage ice detecting device, thereby makes the storage ice detecting device avoid damaging.
The main points of the theme of claim 2 are, the storage ice detecting device has the check-out console that longshore current following formula ice making unit extends with predetermined length on left and right directions, and during ice cube start detection plate in being housed in ice storing cabin, the storage ice detecting device detects completely ices state.
Theme according to claim 2, even from the left side of ice storing cabin or right side when ice cube not being taken out equably, the full ice state of ice cube also can be by detecting at the upwardly extending check-out console of right and left, and, thereby can control generation and the trouble saving that prevents the repetition ice making by carrying out suitable ice making deicing operation.
The main points of the theme of claim 3 are, downward flow type ice making unit structure becomes to have that a pair of front and back are provided with, ice making sheets toward each other, make the ice cube that will fall from two ice making sheets by be arranged on downward flow type ice making unit under the ice parts of leading guide the front and back of ice storing cabin into.
According to the theme of claim 3, ice cube can be housed in the ice storing cabin substantially equably, makes the storage ice detecting device that is arranged at the collecting mechanism rear can correctly detect full ice state.
Advantage of the present invention
Can prevent to store ice detecting device according to downward flow type ice making machine of the present invention is damaged when taking out ice cube.
The optimal mode that carries out an invention
Next, come downward flow type ice making machine according to the present invention is described by preferred embodiment and with reference to accompanying drawing.In the following description, except as otherwise noted, " preceding ", " back ", " left side " and " right side " are to see downward flow type ice making machine employed term when (as shown in Figure 2) from the front.
Embodiment
Fig. 1 is for showing the longitudinal profile side view according to the downward flow type ice making machine of an embodiment, define the ice house 12 with heat insulation structural and being used to preserve the 12a of ice storing cabin of the ice cube M of scheduled volume in downward flow type ice making machine 10.Ice house 12 forms the case shape of opening upward, top board 14 with can adorn/removable mode is arranged on the top of ice house 12 to close upper opening.The top rear wall 16 that forms ice house 12 comprises vertically extending vertical wall portion 16a and from the horizontally extending backward horizontal walls 16b in the lower end of vertical wall portion 16b.In addition, downward flow type ice making unit 18 is arranged on the top in the 12a of ice storing cabin, and is positioned at the place ahead of vertical wall portion 16a with the predetermined distance of being separated by, and extends upward predetermined length at right and left, makes ice cube M fall and be housed among the 12a of ice storing cabin.
As shown in Figure 1, conveying end 20a is formed on the top of the antetheca 20 of ice house 12 in the mode that tilts up, makes spoon etc. to insert in the 12a of ice storing cabin by conveying end 20a and removes ice cube M.The side direction rear is with the track segment 22a of predetermined length extension in the past, be formed on the upper end of the left and right sides wall 22,22 that forms ice house 12, and on width (see figure 2) toward each other, and the drawer type opening-closing door 24 that conveying end 20a opens and closes slidably can be installed between two track segment 22a, the 22a.In other words, when opening-closing door 24 when layback goes out forward from ice storing cabin 12a inside along track segment 22a, 22a, opening-closing door 24 is closed conveying end 20a, and when opening-closing door 24 when track segment 22a, 22a remain among the 12a of ice storing cabin, conveying end 20a opens.
A pair of ice making sheets 26,26 that downward flow type ice making unit 18 state with approximate vertical that consists essentially of is provided with toward each other and the evaporation tube 28 that is arranged between two ice making sheets 26,26, constitutes refrigeration system and form with crooked (zigzag) shape, and, as shown in Figure 1, ice making sheets 26,26 with towards front and back to state be arranged among the 12a of ice storing cabin.The ice making sheets 26 that is positioned at rear side with respect to vertical wall portion 16a is separated from 16a by the interval that the ice cube M that ice making sheets 26 is made falls allowing.As shown in Figure 2, evaporation tube 28 has line part 28a, and this line part 28a extends repeatedly with curved shape on the left and right directions of ice making sheets 26, and contacts with the back side of two ice making sheets 26,26.Thereby when carrying out the ice making operation, when circulate coolant entered in the evaporation tube 28, two ice making sheets 26,26 all were forced to cooling.When deicing is operated, valve by refrigeration system switches and hot gas (high temperature coolant) is offered evaporation tube 28, with heating ice making sheets 26,26, melted the icing face of the ice cube M that generates at end face (following also claim " ice making face "), make ice cube M fall because of deadweight.
As shown in Figure 2, upwardly extending a plurality of protuberance 26a are being provided at predetermined intervals on the left and right directions on the ice making face of ice making sheets 26 at upper and lower, and vertically extending ice making zone 30 is limited by a pair of protuberance 26a, 26a adjacent on left and right directions.In other words, a plurality of ice makings zone 30 is limited to ice making face side according to the ice making sheets 26 of this embodiment abreast along left and right directions.As shown in Figure 2, being used for will be by deicing operation and the protuberance 26b that separate reliably from the ice cube M of ice making face deicing, be formed on the ice making face in each ice making zone 30, and the roughly centre position between the line part 28a, the 28a that separate up and down of lower end and evaporation tube 28.
The ice making water tank 32 of storage scheduled volume ice making water is arranged on the below of downward flow type ice making unit 18.As shown in Figure 4, this ice making water tank 32 comprise be positioned at downward flow type ice making unit 18 under collection unit (collecting mechanism) 32a, with the 32b of case portion that on left and right directions, is connected and rearward extends with the end (right-hand member in the present embodiment) of collection unit 32a.Collection unit 32a has bucket (tub) shape profile, and the bottom is downward-sloping towards the 32b of case portion, thereby the ice making water and the deicing water that allow to receive at collection unit 32a place promptly fall to the 32b of case portion.Not shown circulating pump is arranged at case portion 32b place, makes ice making water deliver to the ice making water ejector 34 that is arranged at above the downward flow type ice making unit 18 under the effect of pressure by pump.A plurality of spray-hole (not shown) are formed in the ice making water ejector 34 shown in Figure 1, and when carrying out the ice making operation, the ice making water of extracting out from ice making water tank 32 is ejected on the ice making face of the ice making sheets 26,26 that is cooled to ice making temperature by spray-hole.Then, the ice making water that falls on each ice making face is icing with the contacted position of line part 28a of evaporation tube 28 in ice making zone 30, generates the ice cube M with reservation shape on ice making face.
As shown in Figure 1, the deicing water supply pipe that is connected to outside water system is connected with the deicing water injector 36 on the top at the back side that is arranged on ice making sheets 26,26 by feed water valve (both are all not shown).When carrying out the deicing operation, when feed water valve is opened, supply to the deicing water of deicing water injector 36 from outside water system, supply to the back side of ice making sheets 26,26 by a plurality of spray-hole (not shown) that are formed in the deicing water injector 36, and flow down overleaf to quicken the thawing of the icing face between each ice making sheets 26 and the ice cube M.
The ice parts 38 of leading of upper end that attach to the collection unit 32a of ice making water tank 32 are arranged near downward flow type ice making unit 18 and being positioned under it.Lead ice parts 38 and have length greater than the width of ice making sheets 26, its with the short side direction (fore-and-aft direction) of length direction quadrature on cross section form as shown in Figure 1 horn shape.Leading ice parts 38 is provided with as follows, be the centre position place of its horn shape top between the rear side of ice making sheets 26,26, make the front side of the inclined plane guiding 12a of ice storing cabin that the ice cube M that falls from the ice making sheets 26 that is positioned at the front side has a down dip by the side direction forward of leading ice parts 38, and the rear side of the inclined plane guiding 12a of ice storing cabin that has a down dip by the side direction backwards of leading ice parts 38 of the ice cube M that falls from the ice making sheets 26 that is positioned at rear side.In leading each inclined plane of icing parts 38, form a plurality of through hole 38a, make and collect in the ice making water tank 32 by the through hole 38a that leads ice parts 38 at the ice making water of carrying out the ice making face that supplies to ice making sheets 26,26 when ice making is operated with at the deicing water of carrying out the back side that supplies to ice making sheets 26,26 when deicing is operated.
Downward flow type ice making machine 10 according to this embodiment is set as follows, promptly, after starting the ice making operation, the water level that detects ice making water tank 32 at float switch (float switch) (not shown) drops under the situation of predetermined water level, and not shown controlling organization is carried out control to stop the ice making operation and to switch to the deicing operation.This ice machine is also set as follows, promptly, the temperature that detects the hot gas after carrying out heat exchange with ice making sheets 26,26 when temperature testing organization in the deicing operation of switching becomes predetermined deicing when finishing temperature, and controlling organization is carried out control and operated to stop the deicing operation and it is switched to ice making.
As shown in Figure 1, detect the storage ice detecting device 40 that the ice cube M be housed among the 12a of ice storing cabin becomes full ice state and be arranged on horizontal walls 16b place, the rear of the collection unit 32a of this horizontal walls 16b in ice making water tank 32.Storage ice detecting device 40 consists essentially of: be attached to can adorn/removable mode is arranged on the reserved unit 42 at horizontal walls 16b place, as the travel switch 44 of testing agency, be arranged on the detection part 46 of reserved unit 42 places, swing, and be arranged on detection part 46 places, as the magnet 38 of detected mechanism.
As shown in Figure 5, horizontal walls 16b disposes a pair of guiding part separated from one another on width 50,50.Flange part 42c, 42c are arranged on the left and right sides of reserved unit 42, and this reserved unit 42 is configured to can spur forwards, backwards when flange part 42c, 42c are supported by guide portion 50,50.As shown in Figure 3, reserved unit 42 forms upward the case shape of opening with the place ahead, and the installation portion 42a of upward opening is formed at the central authorities of the inner bottom surface of reserved unit 42 on width.Travel switch 44 is installed on the installation portion 42a.In the inner front side of reserved unit 42, bearing (bearing) 42b is formed at the both sides of reserved unit 42 on width, and detection part 46 supports as follows pivotally, that is, but by two bearing 42b, 42b swing.
Detection part 46 consists essentially of: the check-out console 52 that extends with predetermined length on left and right directions, be arranged on the supporting axis 54,54 of two width ends of check-out console 52, the maintaining part 56 of extending from the width center back of check-out console 52, and the magnet 48 that is arranged on the rear end of support sector 56.Because supporting axis 54,54 is supported pivotally by the bearing 42b, the 42b that are arranged on the reserved unit 42, so detection part 46 can be around supporting axis 54,54 swings.Detection means 46 is configured such that at the normal position that is in free state that no external force applies (solid line position among Fig. 3), check-out console 52 extends downwards on the 12a of ice storing cabin medium dip ground from the front end of reserved unit 42, and magnet 48 is near the travel switch 44 that is attached on the reserved unit 42.Check-out console 52 the size on the left and right directions be set at the 12a of ice storing cabin the size on the left and right directions 1/2 or more than, make the storage state can in wide region, detect the ice cube that is housed among the 12a of ice storing cabin.
When ice cube M abuts against on the check-out console 52 and is under pressure, be positioned at entopic detection part 46 and rearward swing, magnet 48 is upward displacement and arrive the full ice detection position (position of double dot dash line among Fig. 3) that separates with travel switch 44 obliquely.When being removed by the state of ice cube M compressing, detection part 46 swing forwards under the effect of gravity is shifted and gets back to the normal position.
Travel switch 44 is connected on the controlling organization.When detection part 46 is positioned at normal position and magnet 48 near travel switch 44, travel switch 44 is set at will completely not iced signal and export controlling organization to.In addition, when along with detection part 46 from the normal position to completely icing detection position swing displacement, when travel switch 44 separated from magnet 48, travel switch 44 was set at and exports controlling organization to completely icing signal.Controlling organization is set as follows, promptly, when along with detection part 46 from the normal position to completely icing detection position swing displacement, when travel switch 44 input is completely iced signal, controlling organization judges that ice cube M has become full ice state, this moment, ice cube M storage reached the precalculated position among the 12a of ice storing cabin, and stopped ice making-deicing operation.Controlling organization is set as follows, promptly, when swing is shifted to the normal position from completely icing the detection position along with detection part 46, no longer when travel switch 44 input is completely iced signal, controlling organization is judged the storage of the ice cube M among the 12a of ice storing cabin from completely ice state minimizing, and starts ice making-deicing operation.
As depicted in figs. 1 and 2, detection part 46 in the storage ice detecting device 40 is positioned at the lower position, lower end than the ice making sheets 26 of downward flow type ice making unit 18, thereby when storage ice detecting device 40 carries out full ice when detecting, the storage level of ice cube M is no more than the lower end of ice making sheets 26.Detection part 46 is constructed as follows, that is, detection part 46 is positioned at the rear of the collection unit 32a of ice making water tank 32, and, the lower end of detection part 46 is positioned at the position higher than the lower end of collection unit 32a, therefore can not observe directly by the conveying end 20a that is formed in the ice house 12.In other words, the collection unit 32a of ice making water tank 32 is between conveying end 20a and detection part 46, make detection part 46 be hidden in after the collection unit 32a, and, storage ice detecting device 40 is arranged on such position, and the spoon that inserts by conveying end 20a in this position etc. can not touch detection part 46 easily.
[operation of embodiment]
Next, will the operation according to the downward flow type ice making machine of this embodiment be described.Suppose that when the detection part 46 in the storage ice detecting device was positioned at the normal position, controlling organization judged that the 12a of ice storing cabin is not in full ice state.
When ice making was operated, the ice making water that is housed in the ice making water tank 32 was extracted into ice making water ejector 34 by circulating pump, and supplied to each ice making zone 30 of two ice making sheets 26,26 by ice making water ejector 34. Ice making sheets 26,26 and in evaporation tube 28 coolant circulating carry out heat exchange and be forced to the cooling, the ice making water that supplies to the ice making zone 30 of ice making sheets 26,26 begins progressively to freeze at the contacted position of line part 28a of water and evaporation tube 28.The ice making water that does not freeze that falls from ice making sheets 26,26 is collected in the ice making water tank 32 by the through hole 38a that leads ice parts 38, and circulation is to supply to ice making sheets 26,26 once more.
When detecting through the scheduled time and float switch when specifying water level, controlling organization stops the ice making operation and also starts the deicing operation.As shown in Figure 2, when ice making operation is finished, in the ice making zone 30 of ice making sheets 26, generated on above-below direction separate, with the corresponding a plurality of ice cube M in contact site of the line part 28a of ice making sheets 26 and evaporation tube 28.
When the deicing operation start, switch freezing system valve so that hot gas in evaporation tube 28, circulate, and feed water valve opened by deicing water injector 36 deicing water being supplied to the back side of ice making sheets 26,26, thereby heating ice making sheets 26 is to melt the icing face with ice cube M.Note that equally, fall to the deicing water on the back side of ice making sheets 26,26, collect in the ice making water tank 32 by the through hole 38a that leads ice parts 38 with ice making water, and as next time ice making water.
When ice making sheets 26 was heated by deicing operation, the icing face thawing between ice cube M and the ice making sheets 26 made ice cube M begin landing on the ice making sheets 26.Be slipped to the protuberance 26b that ice cube M on the ice making sheets 26 slips over the below, make ice cube M separate reliably, and separate from the ice making face of ice making sheets 26.Separate the ice cube M that falls from ice making sheets 26 and drop on the corresponding inclined plane of leading ice parts 38, and enter among the 32a of ice storing cabin along the inclined plane landing.In this embodiment, the ice cube M that falls from two ice making sheets 26,26 discharges at fore-and-aft direction by the inclined plane of leading ice parts 38, and disperses storage in the wide region of the 12a of ice storing cabin.
When all ice cube M separate and because of hot air temperature rises from ice making sheets 26,26, temperature testing organization detects deicing when finishing temperature, and controlling organization stops the deicing operation, starts the ice making operation then.
When above-mentioned ice making-deicing operation is carried out repeatedly, and when preserving ice cube M in the 12a of ice storing cabin and arriving the planned position of storage ice detecting device 40, ice cube M abuts against on the check-out console 52 of detection part 46 from the front side.When check-out console 52 was compeled in ice cube M the past side pressure, detection part 46 was swung backward around supporting axis 54,54.Therefore, as shown in Figure 3, the magnet 48 that is arranged on detection part 46 places separates from travel switch 44.At this moment will completely ice signal from travel switch 44 and be input to controlling organization.Then, controlling organization judges that the 12a of ice storing cabin has reached full ice state, and carries out control to stop ice making deicing operation.
Remain among the 12a of ice storing cabin moving along rail portion 22a, 22a by opening-closing door 24, when opening conveying end 20a, the available spoon that inserts the 12a of ice storing cabin by conveying end 20a etc. take out ice cube.Because the detection part 46 of storage in the ice detecting device 40 is hidden in the rear of the collection unit 32a of ice making water tank 32,, thereby makes it possible to prevent to store ice detecting device 40 and be damaged so when taking out ice cube M, spoon etc. can not contact with detection part 46 easily.
When making storage reduce owing to take out ice cube M from the 12a of ice storing cabin, and when removed by the oppression state of ice cube M detection part 46, detection part 46 is side oscillation and displacement forward under the effect of gravity, makes magnet 48 get back to the normal position near travel switch 44.At this moment, travel switch 44 is no longer exported and is completely iced signal, thereby controlling organization is judged the storage of the 12a of ice storing cabin medium floe M from completely ice state minimizing, and carries out control and restart ice making deicing operation.
When deflection left side, position of taking out ice cube M from the 12a of ice storing cabin or right side, deflection left side, top or the right side of the peak shape MO of the ice cube M of accumulation.In this case, because the check-out console 52 of detection part 46 extends upward at right and left with predetermined length in the 12a of ice storing cabin in the storage ice detecting device 40, as Fig. 2 or shown in Figure 4, even make the top of peak shape MO become the stacking states on deflection left side or right side, ice cube M and check-out console 5 contacted states are also kept.This can be avoided such situation, that is, although ice storing cabin 12a inside is in full ice state substantially, storage ice detecting device 40 does not detect full ice state yet, thereby has avoided restarting ice making-deicing operation.That is to say that ice cube M is not stacked into the planned position place of the ice making sheets 26 of a side of not taking out ice cube M, thereby prevent to take place in the downward flow type ice making unit 18 to repeat ice making and fault.
[change]
The application is not limited to the structure of the foregoing description, can adopt other structure on demand.
Although 1. adopted with magnet near or leave and enable or forbid the testing agency of the travel switch of full ice signal as checkout gear among this embodiment, but this is not restrictive, and can adopt microswitch, other photo-electric near switch or can contact with switch member or separate and start or forbid the similar switch of completely icing signal along with the oppression department that is arranged on detection part (detected mechanism).
2. in this embodiment,, also may adopt detection part to be set directly at structure on the horizontal walls although be provided with detection part at the reserved unit place that is arranged at horizontal walls.In this case, should on horizontal walls, provide testing agency, that is, contact or separation according to the swing of detection part mechanism to be detected in this position in such position.
3. the structure of detection part is not limited to the structure of this embodiment, when check-out console is started by ice cube, detects as long as full ice is carried out in swing that can be by the check-out console that extends with predetermined length on left and right directions and displacement, just can take any form.
4. although be that the situation of collecting mechanism has provided the aforementioned description to this embodiment to the collection unit of the part that constitutes the ice making water tank, can change the shape of ice making water tank, make the ice making water tank itself become collecting mechanism.Alternatively, collecting mechanism and ice making water tank can be designed to separated components, make ice making water or the deicing water collected by collecting mechanism to flow in the ice making water tank by suitable pipeline.