JP2017161191A - Ice making machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem in a conventional ice making machine in which basic setting is allocated to a model of the ice making machine by a code of 2 digits, that shipping may be done with wrong code setting, and the model for making the ice block of small size may be excessively cooled to more than necessity due to wrong setting of the code, when the ice making machine is operated by user's hand, here, not only the normal ice blocks cannot be provided as an ice making chamber is excessively cooled, but also mechanical elements may be failed due to excessive growth of ice.SOLUTION: A closed cell-type ice making machine in which an ice making chamber is closed by a water tray, is composed of a temperature detection sensor 28 disposed in the ice making chamber, a control circuit 53 receiving a signal from the temperature detection sensor 28 and controlling switching of ice making/deicing operations, and code setting means 55 disposed on the control circuit 53 and setting basic items common to various ice making machines by a code for each model, and the code of each model in the code setting means 55 is set corresponding to an external dimension of the ice block made in an ice making small chamber.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an ice making machine that uses a code set for each model of an ice making machine to prevent an ice making defect and an ice making part from being caused by an incorrect code setting.

  Ice machines that automatically manufacture a large number of ice cubes, spheres, stars, heart shapes, etc. are widely used. In the present invention, when there are a large number of different types of ice making machines for manufacturing the deformed ice, it is possible to prevent mistakes in ice making, component failures, etc., by making sure that the codes given for each model are not mistaken. An ice making machine is provided. Therefore, prior to the description of the present invention, a schematic structure of a general automatic ice making machine will be described below.

  In the automatic ice making machine 10 shown in FIG. 6, a large number of ice making chambers provided downward in the ice making chamber 31 are closed by water trays 33 from below, and a large number of ice making waters are jetted and supplied from the water tray 33 to each ice making chamber. Is a so-called closed cell type. That is, the automatic ice making machine 10 defines an ice storage chamber 12 in the upper part of a substantially box-shaped housing 11 and a machine room 13 in the lower part. An ice making mechanism 30 is disposed above the ice storage chamber 12, and the ice cubes R generated in the ice making chamber 31 of the ice making mechanism 30 are dropped by the deicing operation and stored in the ice storage chamber 12. Further, the machine room 13 is provided with a compressor 21, a condenser 22, an expansion means 24, etc. constituting a refrigeration mechanism 20, which will be described later with reference to FIG. 8, and an evaporation pipe constituting a part of the refrigeration mechanism 20. 25 is closely attached to the upper surface of the ice making chamber 31.

  As shown in FIG. 7, the ice making mechanism 30 is disposed in the ice making chamber 31 that defines a large number of ice making chambers 32 that open downward, the water tray 33, and the lower portion of the water tray 33. The ice making water tank 34 and the water tray 33 and the water tray opening / closing mechanism 35 for tilting the ice making water tank 34 integrally are configured. A support arm 36 is attached to the left end portion of the water tray 33, and the support arm 36 is pivotally supported on a bracket 37 </ b> A of an attachment member 37 installed on the housing 11 via a pivot shaft 38. The vicinity of the right end of the water tray 33 is connected to a cam arm 39 constituting the water tray opening / closing mechanism 35 via a coil spring 40. The water tray 33 is driven to rotate the cam arm 39 forward and backward by driving the actuator motor 41, so that the ice making chamber 31 is closed by the water tray 33 and tilted downward from the ice making chamber 31. The posture is shifted to the opened state.

  The ice making water tank 34 has a bucket shape in which one side is deep, and can store ice making water supplied from a water supply unit 50 disposed above the housing 11. Further, a water supply pump 45 is disposed on the left front wall, which is the deepest part of the ice making water tank 34, and the ice making water stored in the ice making water tank 34 is passed through the injection hole 43 of the water tray 33. The ice is supplied to each ice making chamber 32 of the ice making chamber 31. Further, the water supply section 50 is composed of a water supply pipe 51 connected to an external water supply source such as a water supply, and a water supply valve 52 disposed in the middle of the water supply pipe 51. The water supply valve 52 is shown in FIG. Open / close control is performed by the control circuit 53. In the present specification, the water tray 33, the ice making water tank 34, and the water pump 45 are collectively referred to as an ice making water supply unit.

  FIG. 8 schematically shows the refrigeration mechanism (refrigeration circuit) 20 and the ice making chamber 31 and ice storage chamber 12 shown in FIG. The refrigeration circuit 20 is configured as a refrigeration system in which a compressor 21, a condenser 22, an expansion means 24, and an evaporation pipe 25 are connected in communication by a pressure pipe body 26. A bypass pipe 29 is connected to the middle of the pipe connecting the compressor 21 and the condenser 22 and the middle of the pipe connecting the expansion means 24 and the evaporation pipe 25, and a hot gas valve 27 is connected to the bypass pipe 29. Is provided. The expansion means 24 supplies the high-pressure liquefied refrigerant condensed in the condenser 22 to the evaporation pipe 25, where it is adiabatically expanded at once to remove the heat of vaporization, thereby bringing the evaporation pipe 25 below freezing point. It is to cool down. As the expansion means 24, a small-diameter capillary tube or a valve body is used. In this specification, an expansion valve is used. In FIG. 8, reference numeral 23 denotes a fan motor that blows and cools the condenser 22.

  In the above-described closed cell type automatic ice making machine 10, ice making water is supplied to each of the ice making chambers 32 by the ice making water supply unit to perform ice making operation, and the completion of ice making is detected and switched to deicing operation. Ice cube R is produced. That is, the water supply valve 52 of the water supply unit 50 shown in FIG. 7 is controlled to open, and a predetermined amount of ice making water is supplied from the water supply pipe 51 to the ice making water tank 34. Next, the ice making operation is started, the freezing operation of the refrigeration circuit 20 shown in FIG. 8 is performed, and each ice making chamber 32 of the ice making chamber 31 is cooled to below the freezing point. Further, by operating the water pump 45, the ice making water stored in the ice making water tank 34 is jetted and supplied to each of the ice making small chambers 32 opened downward, and the ice cube R is supplied to each ice making small chamber 32. Generate. The ice making water that has not been frozen in the ice making chambers 32 is collected into the ice making water tank 34 through a return hole (not shown) formed in the water tray 33, and again sent to each ice making chamber 32 by the water pump 45. Circulated. When a predetermined ice cube R is generated in each ice making chamber 32, the temperature detection sensor 28 provided in the ice making chamber 31 detects the ice making completion temperature and shifts from the ice making operation to the deicing operation. The hot gas valve 27 (FIG. 8) is switched to supply hot gas to the evaporation pipe 25 to raise the temperature of the ice making chamber 31. Further, the water tray opening / closing mechanism 35 is driven to tilt the water tray 33 to a required angle to open the ice making chamber 31, and the ice cubes R generated in each ice making chamber 32 are discharged to the ice storage chamber 12 below. Further, the ice making water remaining in the ice making water tank 34 is discharged to the drain pan 47 shown in FIGS.

  When the discharge of the ice cube R is completed, the water tray opening / closing mechanism 35 reversely operates to return the water tray 33 to the original closed position, and a predetermined amount of ice making water is supplied from the water supply unit 50 to the ice making water tank 34. Then, the ice making operation is started again, and the ice cube R is continuously generated by repeating the series of steps. When a predetermined amount of ice cube R is stored in the ice storage chamber 12, the ice storage detection switch 62 disposed in the ice storage chamber 12 detects that the ice is full, and the ice making operation is stopped. Such a method of operating an automatic ice making machine is disclosed in, for example, Patent Document 1.

JP 7-332820 A

  The above-described closed cell type automatic ice making machine 10 supplies ice making water to the corresponding ice making chambers 32 from the respective injection holes 43 of the water tray 33 that closes the ice making chamber 31 from below, as shown in FIG. In the ice making chamber 32, ice cubes R (not limited to this, but because there are various types of deformed ices, they are hereinafter sometimes referred to as ice blocks R) are manufactured. For example, when the ice cube R is manufactured, as shown in FIG. 9A, by supplying ice making water into each ice making chamber 32 through the injection holes 43, icing occurs on the inner wall of the ice making chamber 32. The ice cube R grows gradually. As can be seen from FIG. 9 (a), while the ice cube R is formed in the ice making chamber 32, a portion where the supplied ice making water is not frozen still remains as the hole portion R1.

  Of course, if the ice making time is lengthened, the hole portion R1 in the ice cube R gradually fills up, but when the hole portion R1 is completely filled, the ice making water in the injection hole 43 and the return hole of the fountain is provided. Problems such as bad streets and freezing of ice making water on the back side of the water tray 33 occur. In addition, since the electricity bill increases and the ice making operation for a long time is not preferable, the size of the hole R1 is adjusted in the market depending on the usage. In general, when emphasizing the shape of ice, as shown in FIG. 9B, the hole R1 generated in the ice cube R is grown so as to be small. On the contrary, when it is desired to increase the quantity of ice cube R, the ice making time is shortened and the hole R1 is grown to be large. In order to adjust the size of the hole R1 in the ice cube R, it is only necessary to control the length of the ice making time. Therefore, the detection of completion of ice making in the ice making chamber 31 is adjusted to be late or early. . That is, as described with reference to FIG. 7, the ice making chamber 31 of the automatic ice making machine 10 is provided with a thermistor that detects the ice making completion temperature, that is, a temperature detection sensor 28. Then, by adjusting the temperature detected by the temperature detection sensor 28 with the control circuit 53, the length of the ice making time is controlled to adjust the production amount of the ice block R (in other words, the size of the hole R1). ing.

  By the way, as described above, the shape of the ice block R manufactured by the closed cell type ice making machine includes a spherical shape, a star shape, a heart shape, and the like in addition to the ice cubes, and has various sizes depending on the application. There is something. Accordingly, in order to manufacture these deformed ices, the temperature zones for cooling the ice making chambers 32 are naturally different. And since it is necessary to memorize | store the cooling temperature according to the ice block R which each model manufactures in the said control circuit 53 used for an ice making machine, it is a wide cooling temperature range (for example, about -5 degreeC-about -40 degreeC). Setting is required. Of course, if the control circuit 53 is individually provided for each model of the ice making machine, the cooling temperature zone is sufficient for one corresponding model, but in general, the control circuit 53 is capable of supporting many models. The function is expanded in a single substrate.

For this reason, any type of current ice making machine can adjust the size of the hole R1 in the ice block R under the setting of the wide cooling temperature zone described above. In addition, depending on the type of refrigerant used in the refrigeration mechanism and Nissan's ice making capacity, ice makers may vary in water supply time and other auxiliary operation conditions in addition to the cooling temperature. Is set. Therefore, at present, as shown in FIG. 1, the control circuit 53 is provided with a code setting means 55, and the code setting means 55 sets the model of the ice making machine to a two-digit code. Assigned to the model. For example,
“10” = Setting of ice making of 25 kg type standard ice “A1” = Setting of ice making of 250 kg ice making type The two-digit code from “00 to FF” is expressed in hexadecimal. Yes.

  However, when the basic setting is assigned by the above-described two-digit code, there is no doubt that the code setting is mistakenly shipped when the code is set at the factory shipment stage. In this case, when the ice maker is operated by arriving at the user's hand, it is cooled to −40 ° C. due to an error in the code setting even though it is a model that manufactures an ice block R having a small size of about 20 mm, for example. May end up. In this case, the ice making chamber 31 is overcooled, so that the ice block R in a normal form cannot be obtained, and mechanical elements such as the water tray 33 and the actuator motor 41 are broken or damaged due to overgrowth of ice. There is. Further, when the cooling temperature is −5 ° C. due to an error in the code setting, the ice is not grown or the ice block R itself is not manufactured. Invite Further, the ice making machine is provided with a temperature adjusting unit for adjusting the ice making temperature, and the user may operate the temperature adjusting unit to adjust the ice making temperature up and down. In this case, there is no problem if the user adjusts the temperature within an appropriate ice-making temperature range. However, if the user sets the temperature outside the range of the proper ice making temperature in the ice making machine, the inconvenience as described above is caused.

In order to solve the above problems and achieve the intended object, the invention according to claim 1 is provided with an ice making chamber having a large number of ice making chambers opening downward, and is openable and closable below the ice making chamber. In an ice making machine comprising an ice making water supply unit that closes the ice making chamber from below during ice making operation and supplies ice making water to the ice making chamber,
A temperature detection sensor disposed in the ice making chamber for detecting a cooling temperature of the ice making chamber;
A control circuit that receives a temperature detection signal from the temperature detection sensor and controls switching between the ice making operation and the deicing operation;
The control circuit is provided with code setting means for setting basic items common to various types of ice making machines by code of each model,
The gist of the invention is that the model-specific code in the code setting means is set corresponding to the external size of the ice block manufactured in the ice making chamber.
According to the invention according to claim 1, since the model-specific code is set in accordance with the external dimensions of the ice block manufactured in the ice making chamber, the model-specific code is set by the code setting means. Separately, the ice making temperature can be set appropriately according to the external dimensions of the ice block. As a result, a normal form of ice block can be produced, and it is possible to prevent the parts of the ice making machine from being damaged or damaged due to overgrowth of ice. Moreover, there is no situation where ungrown ice or ice blocks are not produced. Furthermore, in the present invention, a random code that is not related to the controlled object of the ice making machine is not set, but a code corresponding to the size of the ice block to be manufactured. For this reason, the code setter can easily associate the ice making machine that is being operated with the code, making it easy to understand and making it difficult to make a code setting error.

The gist of the invention described in claim 2 is that the code of the code setting means includes an ice making temperature range corresponding to each model of the ice making machine.
According to the invention which concerns on Claim 2, it can prevent setting the ice making temperature which deviated from the ice making temperature according to the external dimension of an ice lump by setting an appropriate code | cord | chord for every model. That is, by appropriately setting the code setting means, it is possible to appropriately set the ice making temperature according to the external size of the ice block for each model.

The gist of the invention described in claim 3 is that an ice making amount corresponding to each model of the ice making machine is assigned to the code of the code setting means.
According to the invention of claim 3, it is possible to set the ice making temperature in accordance with the ice making amount of the ice making machine.

  According to the ice making machine of the present invention, the ice making temperature is set to an appropriate range by making a certain setting using the code setting for each model. Therefore, it is possible to prevent the occurrence of defective ice making and to prevent the failure and damage of the parts of the ice making machine.

It is the schematic which shows the refrigerating circuit of the ice making machine based on the Example of this invention, and the control circuit which controls ice making operation and deicing operation. It is the schematic of the code set panel which sets the code according to model. It is a figure which shows the code table according to machine type which concerns on 1st Example. It is a figure which shows the code table according to machine type which concerns on 2nd Example. It is a figure which shows the code table according to machine type which concerns on 3rd Example. It is a partially cutaway perspective view showing a schematic configuration of a conventionally known closed cell type automatic ice making machine. It is the schematic of the ice making mechanism in the automatic ice making machine shown in FIG. It is explanatory drawing which shows schematic structure of the freezing circuit used for the automatic ice making machine shown in FIG. 6, the ice making mechanism cooled by this freezing circuit, and the ice storage chamber arrange | positioned under this ice making mechanism. (a) is an explanatory view showing a state in which ice cubes grow gradually in the ice making chamber by supplying ice making water to the ice making chamber, and (b) is a diagram in which the ice cubes grow and the hole portion is formed. It is explanatory drawing which shows the state which became small.

  Next, a preferred embodiment of the ice making machine according to the present invention will be described with reference to the accompanying drawings. In addition, since the basic structure of the automatic ice making machine 10 according to each embodiment is the closed cell type automatic ice making machine described with reference to FIGS. Description is omitted. Further, the present invention is limited to the closed cell type, that is, an automatic ice making machine that manufactures ice in an ice making chamber by closing the ice making chamber with a water dish from below.

(First embodiment)
As shown in FIG. 1, the automatic ice making machine 10 of the first embodiment receives a temperature detection signal from the temperature detection sensor 28, and includes a plurality of control circuits 53 that control switching between ice making operation and deicing operation. Are provided with a code setting panel (code setting means) 55 for setting basic items common to the closed cell type automatic ice making machine by a model-specific code. That is, since the closed cell type automatic ice making machine 10 has a plurality of models in which the shape (external dimensions) of the ice block R to be manufactured and the ice making amount of the ice block R are different as described later, the control circuit 53 It is configured to be applicable to a plurality of models in common.

(Applicable models for control circuit 53)
The breakdown of the models of the closed cell type automatic ice making machine 10 to which the control circuit 53 can be applied is shown below. For example, as shown in FIG. 3, there are the following five types of ice blocks R to be manufactured (1) to (5).
(1) "Standard ice" which is ice cubes with a side of about 30mm
(2) "Small ice" that is ice cubes with a side of about 20mm
(3) "Medium ice" which is ice cubes with a side of about 50mm
(4) "Big ice" that is ice cubes with a side of about 100mm
(5) "Heart-shaped ice" which is a deformed ice
Further, the ice making amount of the ice block R per unit time (1 hour) includes the following six types (a) to (f).
(a) "25kg type" with ice making capacity of 25kg / h
(b) "35kg type" with ice making capacity of 35kg / h
(c) “45 kg type” with ice making capacity of 45 kg / h
(d) “100 kg type” with ice making capacity of 100 kg / h
(e) “150 kg type” with ice making capacity of 150 kg / h
(f) “240 kg type” having an ice making capacity of 240 kg / h

  That is, as the automatic ice making machine 10 that can be applied by the control circuit 53, each of the five models including the ice making chamber 31 that can manufacture any one of the five types of ice blocks R of (1) to (5). In addition, six types (a) to (g) having different ice making amounts are set. That is, there are a total of 30 types of automatic ice makers 10 to which the control circuit 53 can be applied. Therefore, the control circuit 53 inputs and sets the model-specific code CD assigned to each of the 30 types of automatic ice making machines 10 before shipment from the factory, thereby making various settings suitable for various specifications of the automatic ice making machine 10. Has been made.

(About ice making temperature T)
The automatic ice making machine 10 differs in an appropriate ice making temperature T in the ice making chamber 31 during the ice making operation depending on the type of the ice block R to be produced. For example, as shown in FIG. 3, the ice making temperature T in the ice making chamber 31 when producing the “standard ice” is set within a range of −15 ° C. to −25 ° C. In addition, the ice making temperature T of the ice making chamber 31 when manufacturing the “small ice” is appropriately set in the range of −5 ° C. to −10 ° C., and the ice making temperature of the ice making chamber 31 when manufacturing the “medium ice” is set. The temperature T is appropriately in the range of −25 ° C. to −35 ° C. Furthermore, the ice making temperature T of the ice making chamber 31 when manufacturing the “large ice” is appropriately in the range of −35 ° C. to −40 ° C., and the ice making temperature 31 of the ice making chamber 31 when manufacturing the “heart-shaped ice”. The range of −10 ° C. to −20 ° C. is appropriate for the ice making temperature T.

(Model code CD)
In the first embodiment, the code CD assigned to each of the 30 types of automatic ice making machines 10 is composed of a combination of a plurality of digits (2 digits in the embodiment) as shown in FIGS. Yes. In FIG. 2, the first digit 65 of the code CD designates the ice making amount of the automatic ice making machine 10. In the first embodiment, as the first digit of the code CD, “25 kg type” is “1”, “35 kg type” is “2”, “45 kg type” is “3” for the six types. “4” is assigned to “100 km type”, “5” is assigned to “150 km type”, and “6” is assigned to “240 km type”.

  Next, the second digit 66 of the code CD designates the type (shape) of the ice block R. In the first embodiment, as the second digit, “standard ice” is “0”, “small ice” is “1”, “medium ice” is “2”, and “large ice” is “ “4” is assigned to “3” and “heart-shaped ice”, respectively. That is, the model-specific code CD is set according to the external size of the ice block R manufactured in the ice making chamber 32 of the ice making chamber 31.

(About the code setting panel 55)
As shown in FIG. 2, the code setting panel 55 provided in the control circuit 53 includes a display panel 56, a SET button 57, an UP button 58, and a DOWN button 59. The display panel 56 is a seven-segment type liquid crystal display capable of displaying a two-digit code (first digit 65 and second digit 66) consisting of alphanumeric characters. The SET button 57 is a button for enabling / disabling an operation of changing the alphanumeric characters of the first digit 65 and the second digit 66 of the display panel 56, and the display panel 56 is long-pressed (for example, in the normal display mode) 2 seconds or more), it is possible to switch to the code setting mode in the display panel 56. When switching to the code setting mode by long pressing the SET button 57, first, the alphanumeric switching of the first digit 65 is enabled, and the SET button 57 is switched from the first digit switching enabled state. By short-pressing, the second digit switching valid state in which the alphanumerical switching of the second digit 66 is valid is entered. Further, when the SET button 57 is pressed for a short time from the second digit switching valid state, the code setting mode is switched to the normal display mode. The UP button 58 and the DOWN button 59 change the first digit 65 in the first digit switching enabled state, and change the second digit 66 number in the second digit switching enabled state. Is for doing. Accordingly, the code setting panel 55 can set the code CD for each model while viewing the display panel 56.

(About the ice making temperature adjustment unit 60)
As shown in FIG. 1, the automatic ice making machine 10 of the first embodiment includes an ice making temperature adjustment unit 60 that allows a user to adjust the ice making temperature T of the ice making chamber 31, and an operation panel (not shown) of the housing 11. In preparation. As described later, the adjustable range of the ice making temperature T by the ice making temperature adjusting unit 60 is related to the set value of the code CD for each model, and the set value of the code CD is related to the set value of the code CD. The user can arbitrarily adjust the temperature within the adjustable range.

(Association of ice making temperature T with code CD for each model)
In the first embodiment, the ice making temperature T can be adjusted based on the setting value of the second digit 66 of the code CD that defines the type of the ice block R in the model-specific code CD set in the code setting panel 55. The range is defined. That is, the above-mentioned five types of ice blocks R are different in the proper temperature range of the ice making temperature 31 in the manufacture of the ice making chamber 31. Therefore, the adjustable range of the ice making temperature T can be adjusted according to the setting value of the second digit 66 of the code CD. Is related to be set.

  Specifically, as shown in FIG. 3, the ice making temperature T of the “standard ice” is in an appropriate range of −15 ° C. to −25 ° C. Therefore, the second digit 66 of the code CD corresponds to the standard ice. When it is set to “0”, the adjustment range of the ice making temperature T by the ice making temperature adjusting unit 60 is defined as a range of −15 ° C. to −25 ° C. That is, when the second digit 66 is set to “0” corresponding to the standard ice, when the ice making temperature adjustment unit 60 adjusts the ice making temperature T, the temperature above −15 ° C. and the temperature below −25 ° C. Is not adjustable. Further, since the ice making temperature T of the “small ice” is in the range of −5 ° C. to −10 ° C., the second digit 66 of the code CD is set to “1” corresponding to the small ice. Is defined in the range of −5 ° C. to −10 ° C. as the adjustment range of the ice making temperature T in the ice making temperature adjusting unit 60. That is, when the second digit 66 is set to “1” corresponding to small ice, when the ice making temperature adjustment unit 60 adjusts the ice making temperature T, the temperature above −5 ° C. and the temperature below −10 ° C. Is not adjustable. In addition, since the ice making temperature T of the “medium ice” is in the range of −25 ° C. to −35 ° C., the second digit 66 of the code CD is set to “2” corresponding to the medium ice. In the ice making temperature adjusting unit 60, the ice making temperature T is adjusted in the range of −25 ° C. to −35 ° C., and the temperature higher than −25 ° C. and the temperature lower than −35 ° C. cannot be adjusted. Further, since the ice making temperature T of the “large ice” is in the range of −35 ° C. to −40 ° C., when the second digit 66 of the code CD is set to “3” corresponding to the large ice. In the ice making temperature adjusting unit 60, the ice making temperature T is adjusted in the range of −35 ° C. to −40 ° C., and the temperature above −35 ° C. and the temperature below −40 ° C. cannot be adjusted. Furthermore, since the ice making temperature T of the “heart-shaped ice” is in the range of −10 ° C. to −20 ° C., the second digit 66 of the code CD is set to “4” corresponding to the heart-shaped ice ice. In such a case, the adjustment range of the ice making temperature T in the ice making temperature adjusting unit 60 is regulated to a range of −10 ° C. to −20 ° C., and a temperature higher than −10 ° C. and a temperature lower than −20 ° C. cannot be adjusted.

  That is, in the first embodiment, the model-specific code CD defines the setting range of the ice making temperature T according to the type (external dimensions) of the ice block R manufactured in the ice making chamber 32 of the ice making chamber 31. ing. Therefore, the range of the ice making temperature T that can be adjusted by the user is defined by setting the appropriate code CD in advance by the manufacturer using the code setting panel 55. Thereby, it can be avoided that the user sets the ice making temperature T out of the proper range based on the external dimension of the ice block R to be manufactured by mistake. For example, in the closed cell type automatic ice making machine 10 for producing the standard ice, the ice making temperature T in the ice making chamber 31 cannot be set lower than −25 ° C., so that the ice making chamber 31 is overcooled and is normal. The inconvenience that the ice block R in the form cannot be obtained can be avoided. Moreover, it is possible to prevent mechanical parts such as the water tray 33 and the actuator motor 41 from being damaged or damaged due to overgrowth of ice in the ice making chamber 31. Further, since the ice making temperature T in the ice making chamber 31 cannot be set to a temperature higher than −15 ° C., it is possible to prevent the ice from becoming ungrown ice or the ice lump R itself from being produced. In the first embodiment, the outer dimensions (size) of the ice block R manufactured by the automatic ice making machine 10 can be confirmed by confirming the code CD.

(Second embodiment)
FIG. 4 shows the type-specific code CD of the second embodiment allocated to the 30 types of automatic ice making machines 10. In the second embodiment, the code CD assigned to each of the 30 types of automatic ice making machines 10 is composed of a combination of two-digit alphanumeric characters as shown in FIG. The first digit 65 of the code CD designates the ice making amount of the automatic ice making machine 10 as in the first embodiment. That is, in the second embodiment, in the above six types, “25 km type” is “1”, “35 km type” is “2”, “45 km type” is “3”, and “100 km type” is “4”. "5" is assigned to "150 kg type", and "6" is assigned to "240 kg type".

  Here, in the six types of automatic ice making machines 10 having different ice making amounts, small machines such as the 25 kg type and the 35 kg type ice making amount do not have specifications for manufacturing an ice block R having an outer dimension of 50 mm or more. Therefore, in the second embodiment, the five types of ice blocks R to be manufactured are divided into two types: relatively small size ice blocks (small size group ice blocks) and large size ice blocks (large size group ice blocks). The code CD is set. That is, the code CD is divided into a code CD for a small size (less than 50 mm) and a code CD for a large size (50 mm or more). Here, the small ice blocks R are the “standard ice”, the “small ice”, and the “heart-shaped ice”, and the large ice blocks R are the “medium ice” and the “large ice”.

  Specifically, in the second embodiment, as shown in FIG. 4, “standard ice”, which is a small-sized ice block R, for the second digit 66 specifying the type (shape) of the ice block R in the two-digit code CD. For “small ice” and “heart-shaped ice”, the number “0” is assigned, and the ice making temperature T is associated with −5 ° C. to −25 ° C. with respect to “0”. That is, as described in the first embodiment, the proper ice making temperature T of “standard ice” is −15 ° C. to −25 ° C., and the appropriate ice making temperature T of the “small ice” is −5 ° C. to − Since the appropriate ice-making temperature T of the “heart-shaped ice” is −10 ° C. to −20 ° C., the second digit 66 of the code CD is set to “0” in the model that manufactures the small size ice block R. Thus, the ice making temperature T is set to -5 ° C to -25 ° C.

  On the other hand, with respect to the second digit 66 of the two-digit code CD, for the “medium ice” and “large ice” which are large ice blocks R, the alphabet “A” is assigned as shown in FIG. ”Is associated with −25 ° C. to −40 ° C. as the ice making temperature T. That is, as described in the first embodiment, the proper ice making temperature T for “medium ice” is −25 ° C. to −35 ° C., and the proper ice making temperature T for “large ice” is −35 ° C. to −40 ° C. Therefore, in a model that manufactures a large ice block R, the ice making temperature T is set to -25 ° C to -40 ° C by setting the second digit 66 of the code CD to "A". The second digit 66 of the code CD may be an alphabetic character for the small-sized ice block R and may be a number for the large-sized ice block R. The number may be other than “0”, and the alphabetic character may be other than “A”.

  That is, also in the second embodiment, the type-specific code CD defines the setting range of the ice making temperature T according to the type (external dimensions) of the ice block R manufactured in the ice making chamber 32 of the ice making chamber 31. Therefore, the range of the ice making temperature T that can be adjusted by the user is defined by setting the appropriate code CD in advance in the code setting panel 55 by the manufacturer. Thereby, it can be avoided that the user erroneously sets the ice making temperature T greatly deviating from the appropriate range based on the external dimension of the ice block R to be manufactured. Then, the code CD that is not actually used can be eliminated, and the code CD corresponding to the ice block R having a special size can be allocated accordingly.

(Third embodiment)
FIG. 5 shows the type-specific code CD of the third embodiment allocated to the 30 types of automatic ice making machines 10. In the third embodiment, the code CD assigned to each of the 30 types of automatic ice making machines 10 is composed of a combination of two-digit alphanumeric characters as shown in FIG. The first digit 65 of the code CD designates the ice making amount of the automatic ice making machine 10 as in the first embodiment. That is, in the third embodiment, in the above six types, “25 kg type” is “1”, “35 kg type” is “2”, “45 kg type” is “3”, and “100 kg type” is “4”. "5" is assigned to the "150 kilotype", and "6" is assigned to the "240 kilotype". Similarly to the first embodiment, the second digit 66 of the code CD designates the type (shape) of the ice block R. “Standard ice” is “0”, “small ice” is “1”, “ “2” is assigned to “medium ice”, “3” is assigned to “large ice”, and “4” is assigned to “heart-shaped ice”.

  Here, in the six types of automatic ice making machines 10 having different ice making amounts, the small automatic ice making machines 10 having the ice making amount of 25 kg type and the 35 kg type have no specification for manufacturing the ice block R having an outer dimension of 50 mm or more. . Therefore, in the third embodiment, the ice making temperature T is associated with the setting values “0” and “1” of the first digit 65 of the code CD in the “25 kg type” and “35 kg type” where the ice making amount is small. It is. That is, since the “25 kg type” and “35 kg type” automatic ice making machines 10 produce ice blocks R of “standard ice”, “small ice” or “heart-shaped ice”, the code CD As the ice making temperature T, −5 ° C. to −25 ° C. is associated with the setting values “0” and “1” of the first digit 65. That is, the proper ice making temperature T of “standard ice” is −15 ° C. to −25 ° C., and the proper ice making temperature T of the “small ice” is −5 ° C. to −10 ° C. Since the proper ice-making temperature T is −10 ° C. to −20 ° C., the ice making temperature T is uniformly set to −5 ° C. to −25 ° C. in the models of “25 kg type” and “35 kg type”. .

  On the other hand, in the “45 kg type”, “100 kg type”, “150 kg type” and “240 kg type” automatic ice making machines 10, “standard ice”, “small ice”, “medium ice”, “large ice” ”Or“ heart-shaped ice ”. Accordingly, in these four types of automatic ice making machines 10, as in the first embodiment, the setting values “0” to “4” of the second digit 66 of the code CD are changed to “standard ice”, “small ice”, “ The ice making temperature T of “medium ice”, “large ice” or “heart-shaped ice” is associated.

  That is, in the third embodiment, when the first digit 65 of the code CD set by the code setting panel 55 is set to “1” or “2”, it is −5 regardless of the setting value of the second digit 66. C. to -25.degree. Further, when any one of “3” to “6” is set in the first digit 65 of the code CD set by the code setting panel 55, the ice making temperature T is based on the outer dimensions of the ice block R (first The ice making temperature T appropriate for the production of the ice block R is associated with the ice cube R (based on the setting value of the two digits 66).

  In the case of the “25 kg type” and “35 kg type” automatic ice making machines 10, the range of the ice making temperature T is associated with the first digit 65 of the code CD. It is possible to set other than the range of the ice making temperature regarding the external dimensions (type).

  That is, also in the third embodiment, the model-specific code CD defines the setting range of the ice making temperature T according to the type (external dimensions) of the ice block R manufactured in the ice making chamber 32 of the ice making chamber 31. Therefore, the range of the ice making temperature T that can be adjusted by the user is defined by setting the appropriate code CD in advance in the code setting panel 55 by the manufacturer. Thereby, it can be avoided that the user erroneously sets the ice making temperature T greatly deviating from the appropriate range based on the external dimension of the ice block R to be manufactured. Then, the code CD that is not actually used can be eliminated, and the code CD corresponding to the ice block R having a special size can be allocated accordingly.

28 temperature detection sensors, 31 ice making chamber, 32 ice making chamber, 33 water tray (ice making water supply unit),
34 ice making water tank (ice making water supply part), 53 control circuit,
55 Code setting panel (code setting means), CD code, R ice block

Claims (3)

An ice making chamber (31) having a large number of ice making chambers (32) opened downward, and openable and closable below the ice making chamber (31), and closing the ice making chamber (31) from below during ice making operation. In an ice making machine comprising an ice making water supply section (33, 34) for supplying ice making water to the ice making chamber (32),
A temperature detection sensor (28) disposed in the ice making chamber (31) for detecting a cooling temperature of the ice making chamber (31);
In response to the temperature detection signal from the temperature detection sensor (28), a control circuit (53) for controlling switching between the ice making operation and the deicing operation;
The control circuit (53) is provided with code setting means (55) for setting basic items common to various ice makers with codes of each model,
The ice making machine characterized in that the type-specific code (CD) in the code setting means (55) is set corresponding to the external dimension of the ice block (R) produced in the ice making chamber (32).   The ice making machine according to claim 1, wherein the code (CD) of the code setting means (55) includes an ice making temperature range corresponding to each model of the ice making machine.   The ice making machine according to claim 2, wherein an ice making amount corresponding to each model of the ice making machine is assigned to the code (CD) of the code setting means (55).

Images