JPS588970A - Method of promoting refrigeration in refrigerating chamber - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is provided in a cooler, in which live air cooled by a main cooler is circulated into a freezer compartment by a blower, in which the cold *iit; is a part on which articles are placed. An auxiliary cooler is installed for cooling the front auxiliary cooler, and in normal cooling operation, the cooling reaches up to the 1IIIa main cooler.If you want to quietly freeze ice trays and ice cubes, you can use the front auxiliary cooler and the main cooler. - It is designed to promote freezing by flowing refrigerant through the container.

In order to achieve the above-mentioned object and promote effective freezing, the present invention detects the predetermined temperature rise of the auxiliary cooler that occurs when an ice tray or food is placed on it, and then activates the immersion device in the evening. This is the best way to allow the 41B refrigerant to flow for a certain period of time after being activated. In addition, when the defrosting operation of the cooling operation is accumulated over the cooling operation time, and when the predetermined accumulation is reached, the Ir-start is started; Stopping the integration operation 6;
This prevents the number of defrosting operations of the main cooler from becoming unnecessarily high due to the fact that freezing promotion is carried out frequently.

Two next dragons! An example of i@ will be explained with reference to the drawings. I11
In Sonosuzu No. 51 Il, (1) is the cold carpet main body with 11 partitions) to maintain the freezing temperature of -2 (#aK Ken (3)
) and 7IiIMIl Haruka (4), which maintains the temperature 4^ above the freezing point.
And ζ 2nd ward - I'm happy. (At the bottom of the cooling a [1M] provided above with a distance from ωμ partition 11 (2), partition - (2)
and cooling m formed on the threshold of the existing wall (5) (6) 62 is the main cooler (71 is set. (8) is the main cooling! 1 (?
Air is blown into the freezer compartment (3) using a 1m (8mm) electric motor to allow two-way IH to circulate the 9 p*m air in the freezer compartment (3). Cold air escapes from both of the ducts (8), and the cold air generated through the duct (9) is discharged from the duct (9) and circulates in the refrigerator as shown by the arrow. Refrigeration of the duct (9) to control the amount of cold air circulated to 7v811 (4) according to the degree of melody of the irises! (4)
This is a thermal damper device that opens and closes the cold air discharge port section. A noodles are electric compressors, tta is condensation! 1.0 is an auxiliary cooler arranged in the form of a shelf so that articles can be placed in the area where the air discharged into the cooler 11!131 flows well.

Auxiliary cooling! Iu is Freezing II (provided in the freezing promotion area within the gloss, and may simply be provided horizontally in the form of a shelf).
, and in the frozen ml (3), there is a freezer compartment (3) in that -ll.
) A cooling accelerator is formed in the compartment at a position where part of the cold air that would be discharged into the chamber or the metal part is received, and an auxiliary cooler ( 3), and by providing cold air circulation holes in both or one of the freezing promotion chamber and the auxiliary cooler, it is possible to efficiently distribute the cold air. If the freezing promotion chamber is provided with an opening/closing door at the opening of the box, it will be possible to restrict the flow of cold air that collides with the cold box door, and to reduce the leakage of cold air from the gasket 1) on the periphery of both doors. a- is a solenoid valve as a cold flow path control device that operates to control whether the refrigerant flowing in from one inlet flows to one or the other of the two outlets. a'Jr1e is a cavi!? Abe, A1 is a reduced refrigerant liquid (full pure MAL (14) (Lia141111 refrigeration ν Sdem).

The flow path control device No. 1 also controls the control input of the control port so that the refrigerant flowing from one input port flows to one of the two output ports (refrigerant) to the other output port. It may be a fluid control element called a so-called pure fluid element, which is switched and controlled by the freezing accelerator ◆.
Temperature detection iii*, a is a timer device and a cuff y that performs a clockwise operation based on the output from the temperature detection circuit.
! -The power installation time can be changed externally. 4 is a control circuit for the relay (to), and Q4 is a temperature control device that controls the operation of the freezing νSdem, which controls the temperature inside the freezer compartment (3), the temperature of the circulating cold air delivered to the freezer compartment (3), or the main cooling. A control circuit that connects a relay to operate and stop electric compressor i1 using a signal generated from the temperature detection circuit when the temperature of the electric compressor i1 is detected by the sensing element (). (to) is the defrosting control device, and the electric blower's electric $1 (II
A) has a timer device that integrates the cooling operation time between l1Il@ and lI'%, and when the total operation time of yiit* is reached, the elimination finger ◆ is generated. Noodle frost control device (to)
In addition to this, there is also a bistable circuit (to) and a defrosting relay control circuit (84).

It is equipped with a judgment MD circuit c@, a main cooling II (defrosting end temperature detection element 73), rs is a defrosting heater of the main cooler (), OD indicates an inverter, @ is This is an indicator light that lights up when freezing is accelerated.

In the above configuration, the switch (!5a) (35A) is open in the normal cooling operation state, and the temperature control device Q
◆Operation 6: In other words, when the temperature detection circuit (to) determines the predetermined upper limit temperature by sensing the temperature of the temperature sensing element (to), the control circuit (to)
) energizes Clay, closes the switch (27m), and operates the electric compressor fiυ and the electric motor (Sm).

When the temperature detection circuit determines the predetermined lower limit temperature, the control unit becomes one safe state, and its output becomes M
With D@@@, the ND is removed and the control circuit - e.g.: te dere (to) is excited and the switch (5s) is closed.

The heater (to) is threatening to heat up, this and #Ir-mu MD circuit (
The output of (to) is input to the control path (to) and is controlled to forcibly keep the tree (2) de-energized. Also AMDii
ili! The output (to) acts as a reset signal for the timer device C31). When the temperature of the main cooler rises during defrosting operation and the temperature sensing element (to) detects the upper limit temperature of [i*, for example 8°C, the bistable path (2) switches to another stable state. The output of the reservoir MD circuit jlI (to) disappears, and the relay (B) is controlled by the detection operation of the temperature detection circuit. De-energize the step or relay (to) and switch (7)
55m).

Also, in the normal cooling operation state * controlled by the temperature control device (to), the refrigerant does not flow to the auxiliary cooler 0, but is used for main cooling!
I (I know this is a hunch, but if you place an ice cube with fresh water or unfrozen food on top of the auxiliary cooling unit 0, the temperature of the auxiliary cooling gas will rise and the thermosensor will detect it.) When the detected temperature exceeds a predetermined upper limit temperature, a timer device is activated and the flow path is controlled by the control circuit to maintain the relay in an energized state for a unique period of time. The device 14I is damaged by over-current, and the refrigerant makes a continuous flow iI% from the auxiliary cooler I to the main cooler (7).At the same time, the output of the control path (2) or the !timer device The output of the crane is through Inver! (solstice), Midsummer])i[
When one input of @ is set to low level, the control circuit -
Then, the timer device (2) is also input, and the control circuit is controlled to continuously excite the temperature control device (2) without starting the temperature sensing operation of the temperature control device (2). (ffi7mu)
To maintain the closed state, electric pressure 1111ml (
II and the electric motor (8 people) were operated, and the freezing promotion period was set.
The integration operation of the timer device r31 is maintained in a suspended state.

AMDI! The low level output of Invar!- to III (II) acts to halt defrosting midway through r- during defrosting operation when it is used to promote freezing. In other words, when defrosting is stopped during normal cooling operation, When entering, #deception is in the middle of AND circuit (towards)
Both inputs are at a high level, and the AND is performed to produce an output, but when the timer device @ starts in the ζO state, the -friend of the M-wing p circuit (to) that has passed through the inverter (to) Input is 1. Because it's low level.

Ml) output disappears, the defrosting tree becomes de-energized and defrosting is stopped, and the upper iaO cold*ai state is reached.

When the refrigeration process progresses and the predetermined time of the timer device a door elapses, the control signal 9 to the control circuit and the timer device c11) will no longer be activated, so the temperature control device (to) will Temperature sensing operation control is performed, and the relay is de-energized for auxiliary cooling!! The flow of refrigerant to the trout is stopped, and the timer device @ is in the state of integrating operation. If acceleration has been started during defrosting operation, the output of the AND circuit (to) will be generated and the output of the AND circuit (to) will be activated, so the relay (to) will be activated. The defrosting operation which was interrupted by excitation is started.Defrosting is completed when the temperature sensing element (to) detects a predetermined upper limit temperature.

The normal cooling operation is achieved by operating and stopping the electric compressor 411 and the blower (8) using the temperature control device (to). When the frost control device (to) reaches the predetermined integration level, the main cooler (7) -
At the same time as turning on the temperature control device (to) ζ
This is achieved by cooling rotation, that is, forcibly stopping the operation of the electric compressor to maintain a good condition. In addition, when the freezing promotion state occurs in the normal cooling operation state, the cooling operation state is forced for the set time of the timer device that determines the freezing promotion period, and the integration operation of the timer device of the defrosting control device is suspended. The fact that promotion is carried out regularly prevents the number of crops from increasing unnecessarily. In other words, when the defrosting control device (2) integrates the cooling operation in the freezing promotion state, the freezing promotion occurs frequently (1) even though the temperature in the freezer compartment has fallen to the predetermined lower limit temperature. Since cooling operation is carried out regardless of the problem, the defrosting start time arrives earlier than normal cooling operation. Even if this is done, there is little frost adhering to the main cooler (7), and it would be inappropriate to start defrosting by adding up the freezing promotion time.The present invention does not have such drawbacks, The start of defrosting is performed by integrating the normal cooling operation time.In the present invention, it is also possible to start freezing acceleration during defrosting operation.In this case, defrosting operation is interrupted and freezing is delayed. After the defrosting operation has been performed for a predetermined period of time, the defrosting operation is resumed and the predetermined defrosting operation is completed.
It is a configuration that can be used.

The setting time of the timer device is set to be long enough (for example, 60 minutes, etc.) until the water in the ice tray freezes. The purpose of promoting freezing can also be achieved by setting a relatively short time ζ until freezing progresses considerably.

In addition, in a normal cooling state, the refrigerant does not flow to the auxiliary cooler 03 and is cooled by the main cooling unit 11 (7) to circulate the cool air. Cooler all': Adhering frost is sublimated and defrosted.IN
The freezing acceleration time for flowing the refrigerant to the auxiliary cooler is set so that the sublimation wheel shaft in the normal cooling state is achieved with minimal labor costs and the auxiliary cooling can be made to work efficiently, and the main cooling It becomes unnecessary to operate the defrosting operation in the same way as the container.

The auxiliary cooler AS may be one in which twelve refrigerant passages are formed between two metal plates, or one in which refrigerant pipes are arranged on the back side of a metal plate such as a five-rim.

Alternatively, the metal plate 4 may have a structure in which two ventilation holes are provided.
Sublimation defrosting becomes effective if a cold air circulation system is used in which the upper and lower parts of the cooler are used to circulate cool air in a healthy manner.

Note that the auxiliary cooler (II) may be provided with a defrost heater that is energized during the Ow period of an optional switch in case of an emergency.

FIG. 4 ζ shows another embodiment of the refrigerant circuit according to the present invention (second embodiment), and the same reference numerals as in FIG. The solenoid valve (I
J' is opened and the refrigerant bypasses the middle yabifu teapu and sequentially flows from the auxiliary cooling 11fi3 to the main cooler (7) 1 In normal cooling state, the solenoid valve ad is closed and the middle yabifu V?
It flows from AB ad to main cooling 11 (7).

According to the present invention, the same effect can be obtained even if the freezer is connected to a separate freezer in which only the freezer compartment is used as a storage room.

As described above, the present invention is designed to accelerate freezing when ice trays and valuables are placed on the auxiliary cooler, and when the temperature of the auxiliary cooler rises and exceeds a predetermined upper limit temperature, the timer device is started. The auxiliary cooler and the main cooler are used for a certain period of time; by flowing a refrigerant, the ice tray and food are cooled by the air cooled by the main cooler, and also by heat conduction from the auxiliary cooler. It is possible to achieve the desired objectives in a short amount of time. After the freezing promotion is completed, it can be stored in the normal frozen state ζ==, which is the best way to effectively utilize the cold*m.

IL round refrigeration progress is achieved with priority over normal cooling operation control, and as it is the fI number, freezing promotion is quickly achieved, and in the case of a turtle freezing promotion state, the cooling operation time integration operation of the faulty frost control device is suspended. As a result, even if the cooling acceleration time and cooling operation time are longer than the cooling operation time, it will be difficult to increase the brass vibration. It is possible to achieve sublimation defrosting during normal cooling operation without performing a defrosting operation in synchronization with the cooling device, and it is possible to achieve a good standby state for the promotion of freezing in the primary garden.

[Brief explanation of drawings]

Each figure shows an embodiment of the present invention, and FIG. 1 is a vertical side view of the Snake temperature refrigerator, FIG. 1 is a refrigeration circuit diagram, No. 311 is a control electric circuit diagram, and FIG. It is an example figure.
゛(3)-Frozen I1. +71-Main cooler, (8)-Blower, aTo auxiliary cooler% (lJf141・-Flow path control device%l-Tire gauging device @4-Temperature control gi value, Sha--hat removal control device.

Claims (1)

[Claims] t A device that circulates the air cooled by the main layer cooler installed in the cooling unit into the freezing chamber using a blower6; An auxiliary cooler installed to place one item in the cooling unit Then, whether the cold sensation flows to both the main cooler and the auxiliary cooler, or the temperature of the auxiliary cooler and the flow path control device that controls whether the cooling sensation flows to both the main cooler and the auxiliary cooler, A timer device that operates when the temperature exceeds @1 and controls the cooling operation of the first floor * V Sdem to keep the moisture inside the refrigerating chamber within a predetermined temperature range 1.
; One temperature control Ill, and control to stop the cooling operation and perform a punishing operation of the main cooler when the cooling operation time is accumulated and the operation is performed twice in a predetermined total operation. The predetermined time ξ is equipped with a frost control device and is controlled by an a period timer device.
Humidity Control Humidity Control Device Each Part Operation Control Control means for keeping the 111a refrigeration V step in a cooling operation state with priority, and refrigerant to both coolers for a predetermined period of time specified in w4. a means for activating the flow path control device so that C-flows;
A method for promoting refrigeration in a refrigerator by providing means for stopping the integration operation of the IIrII4 control device.