JP2002136260A - Apparatus for feeding frozen sweet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a twin apparatus for feeding a frozen sweet capable of displaying a defrosted state of an evaporator together in display devices for both a left and a right rooms. SOLUTION: This apparatus for feeding the frozen sweet comprises a first sequencer 121 in which a timer signal for instruction of the start of defrosting is inputted from an all day timer 24 and the timer signal is outputted to a second sequencer 122. The first sequencer 121 is capable of stopping the operation of a compressor 23 and the driving of a fan motor 3 for the left room, energizing a defrosting heater 8, removing frost sticking to the evaporator 2, carrying out display for providing information that the evaporator 2 is under defrosting in the display device 13 for the left room during the time, stopping the driving of a fan motor 4 for the right room with the second sequencer 122 and carrying out the display for providing information that the evaporator 2 is under defrosting in the display device 14 for the right room and inputting a defrosting thermal signal as a signal for completing the defrosting from a defrosting thermoswitch 7 to the first sequencer 121 when the defrosting is started to increase the temperature in the evaporator 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frozen dessert supply apparatus for supplying ice desserts such as ice cream and yogurt, and more particularly to a dual-type ice dessert supply apparatus having two freezing compartments.

[0002]

2. Description of the Related Art FIG. 4 schematically shows the entire structure of a conventional dual-type frozen dessert supply device 1. As shown in FIG. The frozen dessert supply device 1 includes a freezer 1
0 and a machine room 20. The freezer compartment 10 is surrounded by a heat insulating box 5 and is divided into a left compartment 11 and a right compartment 12 by a partition wall 15 made of a heat insulating material provided at a central portion. In the left chamber 11 and the right chamber 12, cylinders 6 each containing a pack containing frozen dessert are arranged. A fan motor 3 for the left room is provided above the left room 11, and a fan motor 4 for the right room is provided above the right room 12. The evaporator 2 common to the left chamber 11 and the right chamber 12 is provided on the ceiling of the freezer compartment 10. The air cooled by the evaporator 2 is circulated and cooled in the left chamber 11 by driving the fan motor 3 for the left chamber, and is circulated and cooled in the right chamber 12 by driving the fan motor 4 for the right chamber. Is configured. The evaporator 2 is provided with a defrost thermoswitch 7 for measuring the temperature of the evaporator and a defrost heater 8 for defrosting the evaporator 2. Further, on the outer wall surface of the door 9, there are provided a left room indicator 13 for displaying the temperature in the left room 11, the defrosting state, and the like, and a right room indicator 14 for displaying the temperature and the like in the right room 12. I have.

Further, below the freezing room 10, a machine room 2 is provided.
0 is formed. In the machine room 20, in addition to the compressor 23, a condenser, a condenser fan, and a dryer (not shown) are provided, and together with the evaporator 2, constitute a refrigeration circuit. In the machine room 20, a left circuit 11 as a control circuit is provided.
A first sequencer 21 for the right chamber 12 and a second sequencer 22 for the right chamber 12 are provided. Furthermore, in the machine room 20,
An all-day timer 24 that measures the defrosting start time of the evaporator 2 and instructs the first sequencer 21 to start defrosting is provided. The first sequencer 21 is connected to the compressor 23, the all-day timer 24, the defrost thermoswitch 7, the left ventilator fan motor 3, and the left ventilator display 13. The right sequencer fan motor 4 and the right room display 14 are connected to the second sequencer 22.

[0004] The first sequencer 21 controls the operation of the compressor 23 to adjust the amount of heat absorbed in the evaporator 2, and controls the driving of the fan motor 3 for the left chamber to set the inside of the left chamber 11 to a set temperature. To maintain. Further, the first sequencer 21 displays the temperature in the left ventricle 11 on the left ventilator display 13. Further, the first sequencer 21 receives an instruction from the all-day timer 24 after a lapse of a predetermined time, stops the operation of the compressor 23 and the driving of the fan motor 3 for the left chamber, and energizes the defrost heater 8 to heat the evaporator 2. By doing so, frost adhering to the evaporator 2 is removed. In addition, the first sequencer 21 displays on the left ventricle display 13 that the defrosting is being performed during the defrosting operation. Next, the first sequencer 21 receives a signal from the defrost thermo switch 7 that operates when the temperature of the evaporator 2 rises to a predetermined temperature, stops energization of the defrost heater 8, terminates defrosting, and sets the left chamber The display indicating that defrosting is being performed on the display unit 13 is ended, and the temperature in the left chamber 11 is displayed again on the left room display unit 13. On the other hand, the second sequencer 2
1 controls the driving of the fan motor 4 for the right room so as to maintain the right room 12 at the set temperature regardless of whether the defrosting is being performed, and maintains the inside of the right room 12 at the set temperature.

[0005]

However, only one evaporator 2 is provided in common for the left chamber 11 and the right chamber 12, and the first sequencer 21 controls the defrosting of the evaporator 2 and The defrosting state is displayed only on one of the indicators, that is, the indicator 13 for the left ventricle. Therefore, even though the defrosting is being performed, the indication that the defrosting is being performed is not displayed on the right-room indicator 14, so that, for example, there is a possibility that some users may misunderstand that the defrosting of the right chamber 12 is not performed. Was. The present invention has been made in order to solve such a problem, and an object of the present invention is to provide a frozen dessert supply device that displays the defrosting state of an evaporator on both left and right room indicators.

[0006]

According to the present invention, there is provided a frozen dessert supply device comprising a first and a second freezing chamber, an evaporator for cooling both the freezing chambers, and a defrost heater for defrosting the evaporator. A frozen dessert supply device having a first control circuit connected to a defrost heater and controlling a first freezing room, and a second control circuit controlling a second freezing room, provided for each freezing room. 1st that displays the defrosting status of the evaporator
A second display, a defrosting start timer connected to the first control circuit, measuring a time until the defrosting of the evaporator is started, and outputting a defrosting start signal to the first control circuit; Temperature detecting means connected to the circuit and detecting a temperature of the evaporator and outputting a defrosting end signal to the first control circuit, wherein the first control circuit controls defrosting of the evaporator by the defrost heater and The first display unit displays a defrosting status, and outputs a defrosting start signal input from the defrosting start timer and a defrosting end signal input from the temperature detecting unit to the second control circuit, and the second control circuit The defrosting status is displayed on the second display based on the defrosting start signal and the defrosting end signal. In the frozen dessert supply device according to the present invention, the display of the defrosting status may include a display for notifying an abnormality of the defrosting status. In addition, the frozen dessert supply device according to the present invention may include a fan motor provided for each freezer compartment and stopped for controlling the temperature of each freezer compartment.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 schematically shows the entire structure of a dual-type frozen dessert supply apparatus 100 according to the present embodiment. The frozen dessert supply device 1 includes a freezing room 10 and a machine room 20. The freezer compartment 10 is surrounded by a heat insulating box 5 and has a partition wall 1 made of a heat insulating material provided at a central portion.
5 separates a left chamber 11 and a right chamber 12 from each other. In the left chamber 11 and the right chamber 12, cylinders 6 each containing a pack containing frozen dessert are arranged. A fan motor 3 for the left room is provided above the left room 11, and a fan motor 4 for the right room is provided above the right room 12. The evaporator 2 common to the left chamber 11 and the right chamber 12 is provided on the ceiling of the freezer compartment 10. The air cooled by the evaporator 2 is circulated and cooled in the left chamber 11 by driving the fan motor 3 for the left chamber, and is circulated and cooled in the right chamber 12 by driving the fan motor 4 for the right chamber. Is configured. The evaporator 2 is provided with a defrost thermoswitch 7 as a temperature detecting means for detecting the temperature of the evaporator and outputting a defrosting start signal, and a defrost heater 8 for defrosting the evaporator 2. Further, on the outer wall surface of the door 9, as a first display, a left room display 13 for displaying the temperature in the left chamber 11, a defrosting state, and the like, and as a second display, inside the right chamber 12. A right room indicator 14 for displaying temperature, defrosting status, and the like is provided.

Further, below the freezing room 10, there is a machine room 2.
0 is formed. In the machine room 20, in addition to the compressor 23, a condenser, a condenser fan, and a dryer (not shown) are provided, and together with the evaporator 2, constitute a refrigeration circuit. In the machine room 20, a first sequencer 121 for the left chamber 11 and a second sequencer for the right chamber 12 are provided as a first control circuit.
The second sequencer 122 is provided as a control circuit of the second embodiment. Further, a time is counted in the machine room 20 until the defrosting of the evaporator 2 is started, and the first sequencer 121 is counted.
And an all-day timer 24 for instructing the second sequencer 122 to start defrosting.

As shown in FIG. 2, the first sequencer 1
Reference numeral 21 denotes an all-day timer 24, a defrost thermo switch 7, an indicator 13 for the left ventricle, a fan motor 3 for the left ventricle,
The compressor 23 and the defrost heater 8 are connected. The second sequencer 122 is connected to the right-room fan motor 4 and the right-room display 14, and is also connected to the first sequencer 121. Here, the first
The sequencer 121 controls the operation of the compressor 23 to adjust the amount of heat absorbed in the evaporator 2, and controls the driving of the left chamber fan motor 3 to maintain the inside of the left chamber 11 at a set temperature. Further, the first sequencer 21 displays the temperature in the left ventricle 11 on the left ventilator display 13. On the other hand, the second sequencer 21 controls the driving of the fan motor 4 for the right ventricle,
The inside of the right chamber 12 is maintained at the set temperature.

Next, the defrosting operation of the dual-type frozen dessert supply apparatus according to this embodiment will be described with reference to FIG. The all-day timer 24 outputs a timer signal instructing the first sequencer 121 to start defrosting when a predetermined time has elapsed after counting the time. The first sequencer 121 to which the timer signal has been input outputs the timer signal to the second sequencer 122. Also, the first sequencer 12
1 is the operation of the compressor 23 and the fan motor 3 for the left ventricle.
Is stopped, and the defrost heater 8 is energized to heat the evaporator 2 to remove frost adhering to the evaporator 2. Further, the first sequencer 121 displays the character “dF” on the left ventricle display 13 to notify the user that defrosting is being performed. On the other hand, the first sequencer 121
Sequencer 122 to which a timer signal has been input via
Stops driving the fan motor 4 for the right room. further,
The second sequencer 122 displays "dF" on the right ventilator display 14.
Is displayed to inform the user that defrosting is in progress.

When the temperature of the evaporator 2 rises due to the start of defrosting, the defrost thermo switch 7 switches the evaporator 2
Detects that the temperature has reached a predetermined temperature and operates, and outputs a defrost thermo signal to the first sequencer as a defrosting end signal. The first sequencer 121 to which the defrost thermo signal has been input outputs the defrost thermo signal to the second sequencer 122. Also, the first sequencer 12
1 stops the energization of the defrost heater 8 and ends the defrosting, and also restarts the operation of the compressor 23 and the driving of the left chamber fan motor 3. Further, the first sequencer 121 ends the display indicating that the defrosting is being performed, which is displayed on the display 13 for the left chamber, and displays the temperature in the left chamber 11 again. On the other hand, the second sequencer 122, to which the defrost thermo signal has been input via the first sequencer 121,
The driving of the left ventilator fan motor 3 is restarted. Furthermore, the second
The sequencer 122 ends the display indicating that the defrosting is being performed, which is displayed on the display unit 14 for the right room, and displays the temperature in the right room 12 again.

The first sequencer 121 outputs a defrosting start abnormal signal to the left ventilator display 13 when a timer signal for instructing the start of defrosting from the all-day timer 24 is not input even after 25 hours, for example. Room display 13
Is displayed to inform the user that the defrosting operation has not started and is abnormal. First sequencer 12
1 also outputs a defrosting start abnormal signal to the second sequencer 122, and the second sequencer 122 displays the character "E2" on the right ventilator display 14, indicating that the defrosting operation has not started and is abnormal. Notify users. Further, the first sequencer 121 supplies a current to the defrost heater 8 for 30
Even after the elapse of the minute, the defrost thermo switch 7 does not operate, and the defrost thermo signal is output as the first defrost signal.
If the signal is not input to the sequencer, a defrosting end abnormal signal is output to the left-room display 13 and the left-room display 13 displays “E
The character "3" is displayed to inform the user that the defrosting operation is not completed and is abnormal. First sequencer 121
Also outputs a defrosting end abnormal signal to the second sequencer 122, and the second sequencer 122 displays the character "E3" on the right ventilator display 14, and informs the user that the defrosting operation is not completed and abnormal. Inform

As described above, the first sequencer 121 controls the defrosting of the evaporator 2 by the defrost heater 8, displays the defrosting status on the left-room display 13, and transmits the timer signal and the defrost thermostat signal to the second sequencer 122.
And the second sequencer 122 displays the defrosting status on the right ventilator display 14 based on these signals, so that the user may misunderstand that only the left ventricle 11 is defrosting as in the related art. Therefore, it is possible to know that the whole frozen dessert supply device 100 is defrosting. In addition, since the fan motors 3 and 4 can be stopped during defrosting in both the left and right chambers of the ice confectionery supply device 100, the operation of the compressor 23 is stopped during the defrosting, and the air in the ceiling which is not cooled is removed. Does not circulate in both the left and right chambers, and the cooling efficiency is improved. Right room indicator 13
In addition, since the error display for notifying the defrosting abnormality is performed on the display unit 14 for the right ventricle, the user can know that there is an abnormality in the defrosting of the whole ice confectionery supply device 100.

[0014]

As described above, according to the present invention, the first and second freezing compartments, the evaporator for cooling both the freezing compartments, and the defrosting of the evaporator are provided. A desiccant heater, a first control circuit connected to the defrost heater and controlling a first freezer compartment, and a second control circuit controlling a second freezer compartment, wherein each of the frozen desserts is provided. First and second indicators provided for each chamber and displaying the defrosting status of the evaporator, and connected to the first control circuit, measure the time until the defrosting of the evaporator is started, and output a defrosting start signal. A defrosting start timer that outputs to the first control circuit; and a temperature detecting means that is connected to the first control circuit and detects a temperature of the evaporator and outputs a defrosting end signal to the first control circuit. The control circuit of the evaporator by the defrost heater The defrosting control is performed and the defrosting state is displayed on the first display, and the defrosting start signal input from the defrosting start timer and the defrosting end signal input from the temperature detecting means are output to the second control circuit. 2
Control circuit, based on the defrost start signal and the defrost end signal, to display the defrost status on the second display,
The defrosting status of the evaporator can be displayed on both the left and right room indicators.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing a schematic structure of a frozen confectionery supply device according to an embodiment of the present invention.

FIG. 2 is a block diagram illustrating a configuration of a frozen dessert supply device according to an embodiment.

FIG. 3 is a functional block diagram illustrating functions of a first sequencer and a second sequencer of the frozen confectionery supply device according to the embodiment.

FIG. 4 is a partially broken front view showing a schematic structure of a conventional frozen dessert supply device.

[Explanation of symbols]

2 evaporator, 3 left fan motor, 4 right fan motor, 7 defrost thermoswitch, 8 defrost heater, 11 left room, 12 right room, 13 left room display, 14 ... Right display, 24 ... All day timer,
121: first sequencer, 122: second sequencer.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Tsutomu Iwata 3rd-16 Minamikan, Sakaecho, Toyoake-shi, Aichi F-Term in Hoshizaki Electric Co., Ltd. 4B014 GB18 GB21 GB22 GB23 GT12 GT20

Claims (3)

[Claims] 1. A first freezing compartment connected to a first and second freezing compartment, an evaporator for cooling both the freezing compartments, a defrosting heater for defrosting the evaporator, and a defrosting heater. A frozen confectionery supply device having a first control circuit for controlling and a second control circuit for controlling a second freezing room, wherein the first and the second devices are provided for each freezing room and display a defrosting state of an evaporator. A second display, a defrosting start timer connected to the first control circuit, which measures a time until the evaporator starts defrosting, and outputs a defrosting start signal to the first control circuit; and a first control circuit. And a temperature detecting means for detecting a temperature of the evaporator and outputting a defrosting end signal to the first control circuit, wherein the first control circuit controls defrosting of the evaporator by the defrost heater, and Defrosting status is displayed on the display 1 And outputs a defrosting start signal input from the defrosting start timer and a defrosting end signal input from the temperature detecting means to the second control circuit, and the second control circuit outputs a signal based on the defrosting start signal and the defrosting end signal. And a defrosting state is displayed on a second display. 2. The frozen dessert supply device according to claim 1, wherein the display of the defrosting status includes a display for notifying an abnormality of the defrosting status. 3. The frozen dessert supply device according to claim 1, further comprising a fan motor provided for each freezing room and stopped for controlling the temperature of each freezing room.