WO2018128085A1

WO2018128085A1 - Refrigerator

Info

Publication number: WO2018128085A1
Application number: PCT/JP2017/045901
Authority: WO
Inventors: 堀尾　好正; 翔太垣内; 智弘藤田; 芳嘉紅林; 一瑳多賀; 孝亮服部; 和也平; 慶修有年; 淳宏大島; 今田　寛訓; 宏亮佐野; 渡邉　正人
Original assignee: パナソニックＩｐマネジメント株式会社
Priority date: 2017-01-06
Filing date: 2017-12-21
Publication date: 2018-07-12

Abstract

This refrigerator is provided with: a storage compartment; a cooling compartment that accommodates a cooler and a cooling fan, which supply cool air to the storage compartment; and a damper that controls, in a duct, the cool air supplied from the cooling compartment to the storage compartment. The damper has a flap and a drive device. The operation of the flap by the drive device is controlled through case analysis of flap opening and closing control and flap opening degree control.

Description

refrigerator

This disclosure relates to a refrigerator.

In recent years, in a refrigerator, cold air is generated in a cooling room provided on the back side of the refrigerator body, and the cold air is circulated to a refrigerator room, a freezer room, a vegetable room, etc. by a cooling fan, and food in each room Is cooled. In this type of refrigerator, in addition to the refrigerator compartment damper that adjusts the amount of cold air circulation to the refrigerator compartment, a refrigerator compartment damper that controls the amount of cold air circulation to the freezer compartment is provided. There is one that can be cooled well (for example, see Patent Document 1).

However, in the conventional refrigerator as described above, the refrigerator compartment damper and the freezer compartment damper control the opening and closing of the flaps of the refrigerator compartment damper and the freezer compartment damper according to the temperatures of the refrigerator compartment and the freezer compartment, respectively. In the conventional refrigerator configured as described above, cold air is introduced into each room when the flaps of the dampers are open, and cold air is stopped in each room when the flaps of the dampers are closed. For this reason, it has the subject that the temperature fluctuation in each room becomes large.

Further, in the conventional refrigerator as described above, the cold air generated by the cooler during operation of the compressor is supplied to the refrigerator compartment and the freezer compartment by the blower via the refrigerator compartment damper and the freezer compartment damper, It is cooled to a predetermined temperature. In the conventional refrigerator configured as described above, after the compressor is stopped, the blower is also stopped, and when the temperature in the freezer compartment becomes high, the cycle in which the compressor is operated again is repeated.

However, in the conventional refrigerator as described above, since the blower is also stopped while the compressor is stopped, the cooler heat cannot be effectively used while the compressor is stopped, and the cooling efficiency is reduced. Has a problem.

In addition, in recent refrigerators, in order to suppress the heat effect on the stored food in the refrigerator, a precool operation is performed before the start of the defrosting operation, and a rise in the internal temperature during the defrosting operation is suppressed. Yes (see, for example, Patent Document 2).

In the conventional refrigerator as described above, the precool operation is performed before the start of the defrosting operation, and the rise in the internal temperature during the defrosting operation can be suppressed. However, in the conventional refrigerator as described above, since the defrosting operation is started immediately after the end of the precool operation, the cooling of the cooler after the end of the precool operation, which is supercooled in the precool operation, is not effectively used. It has the subject that cooling efficiency falls.

In recent years, in order to improve the freshness of the vegetable compartment, a humidity sensor is provided in the vegetable compartment, and air is supplied from the outside to the vegetable compartment based on the humidity detected by the humidity sensor, thereby increasing the humidity in the vegetable compartment. A refrigerator has been proposed (see, for example, Patent Document 3).

However, in the conventional refrigerator as described above, in order to supply air from the outside to the vegetable room, a connection duct or the like that connects the inside and the outside of the refrigerator is necessary, and the heat absorption due to the complicated structure and the intake of outside air There are issues such as increase.

In recent years, a light source for irradiating light and a light sensor capable of detecting light have been provided in the storage chamber, and when the door opening / closing detection unit detects a closed door, light is emitted from the light source to reduce the storage load in the warehouse. A refrigerator for detection has been proposed (see, for example, Patent Document 4).

In the conventional refrigerator as described above, the storage load in the cabinet after the door is closed is detected. However, the conventional refrigerator as described above detects the amount of change (storage change amount) between the storage amount after the previous door opening and closing and the storage amount after the current door opening and closing in the storage chamber, However, there is a problem that appropriate cooling control according to the storage amount in the storage chamber cannot be performed.

JP 2011-7451 A JP-A-11-201621 JP 2009-8326 A JP 2011-99579 A

The present disclosure has been made in view of the conventional problems as described above, and provides a refrigerator capable of reducing temperature fluctuation in a storage chamber.

Specifically, a refrigerator according to an example of the present disclosure includes a storage room, a cooler that supplies cold air to the storage room, a cooling room that houses a blower, and a damper that controls the cold air supplied from the cooling room to the storage room. With. The damper has a flap and a drive device. The refrigerator according to an example of the present disclosure is configured such that the flap operation by the driving device is performed by dividing the flap opening / closing control for controlling the opening / closing of the flap and the flap opening degree control for controlling the opening / closing angle of the flap. ing.

Such a configuration makes it possible to control the flap opening of the damper when it is necessary to reduce the temperature fluctuation in the storage chamber. Therefore, with such a configuration, it is possible to reduce complicated control such as flap origin position confirmation control required for damper flap opening control by a stepping motor or the like of the driving device. Therefore, with such a configuration, it is possible to provide a refrigerator that can improve energy saving with simple specifications and can perform cooling with high reliability.

Moreover, the refrigerator according to an example of the present disclosure may include a refrigerator room and a freezer room as a storage room. Moreover, in the refrigerator according to an example of the present disclosure, the cooling chamber may be disposed behind the freezing chamber. Further, in the refrigerator according to an example of the present disclosure, the damper includes a refrigerator compartment damper that controls cold air supplied from the cooling chamber to the refrigerator compartment, and a freezer compartment damper that controls cold air supplied from the cooling chamber to the freezer compartment. You may do it. The refrigerator according to an example of the present disclosure is configured such that the flaps of the refrigerator compartment damper and the freezer compartment damper are controlled independently.

With such a configuration, when it is desired to reduce the temperature fluctuations in the freezer compartment and the refrigerator compartment, it is possible to control the opening of the refrigerator compartment damper flap and the freezer compartment flap, respectively. A refrigerator capable of highly reliable cooling can be provided.

In addition, a refrigerator according to an example of the present disclosure may have an energy saving operation condition and a normal operation condition as operation conditions. In this case, the refrigerator according to an example of the present disclosure may be configured such that the flap opening degree control is performed during the energy saving operation condition and the flap opening / closing control is performed during the normal operation condition.

With such a configuration, when energy saving operation is required, the flap opening degree of each damper can be controlled, and a refrigerator capable of cooling with high energy saving and high reliability with a simple specification can be provided.

Also, the present disclosure provides a refrigerator that can reduce temperature fluctuation in each storage chamber.

Specifically, a refrigerator according to an example of the present disclosure includes a storage chamber, a cooler that supplies cool air to the storage chamber, a cooling chamber in which a blower is stored, and cold air supplied from the cooling chamber to the storage chamber in a duct. In addition to the damper to be controlled, a storage room temperature sensor for detecting the temperature in the storage room may be provided. The damper may have a flap and a drive device as described above. The refrigerator according to an example of the present disclosure may be configured such that the flap operation by the driving device is performed by flap opening control that controls the opening (opening / closing angle) of the flap. Further, the refrigerator according to an example of the present disclosure is configured such that the flap opening degree is changed by changing the flap angle by the driving device based on the average temperature of the storage room temperature sensor and the storage room target temperature during a predetermined time before the flap operation in the damper. You may be comprised so that control may be performed.

With such a configuration, the temperature fluctuation in the storage chamber can be reduced to approach the storage chamber target temperature. Therefore, with such a configuration, an easy-to-use refrigerator with improved energy saving can be provided.

Moreover, the refrigerator according to an example of the present disclosure may have a refrigerator compartment and a freezer compartment as a storage compartment. In the refrigerator according to the example of the present disclosure, the cooling chamber may be disposed behind the freezing chamber. In addition, a refrigerator according to an example of the present disclosure includes, as dampers, a refrigerator compartment damper that controls cool air supplied from the refrigerator compartment to the refrigerator compartment, and a freezer compartment damper that controls cool air supplied from the refrigerator compartment to the freezer compartment. You may do it. In this case, the refrigerator according to an example of the present disclosure may be configured such that the flaps of the refrigerator compartment damper and the freezer compartment damper are independently controlled.

With such a configuration, it is possible to reduce the temperature fluctuations in the freezer compartment and the refrigerator compartment, and to provide an easy-to-use refrigerator with improved energy saving.

In addition, the refrigerator according to an example of the present disclosure may have energy saving operation conditions as operation conditions. In this case, the refrigerator according to an example of the present disclosure may be configured such that the flap opening degree control is performed during the energy saving operation condition.

With this configuration, when energy-saving operation (hereinafter referred to as energy-saving operation) is required, the flap opening degree of each damper can be controlled, and energy-saving and highly reliable cooling can be achieved with a simple specification. A refrigerator can be provided.

In addition, the present disclosure provides a refrigerator that can efficiently cool the refrigerator compartment by effectively using the cold energy of the cooler while the compressor is stopped and suppressing the thermal influence on the freezer compartment.

Specifically, a refrigerator according to an example of the present disclosure includes a refrigerator room and a freezer room as a storage room. In addition, a refrigerator according to an example of the present disclosure includes a cooling chamber that is disposed behind the freezer compartment and that stores a cooler and a blower that supply cold air to the refrigerator compartment and the freezer compartment. Moreover, the refrigerator by an example of this indication has the refrigerating room temperature sensor provided in the refrigerating room, and the refrigerating room temperature sensor provided in the freezer compartment. In addition, a refrigerator according to an example of the present disclosure includes a refrigerating room damper that controls cold air supplied from the cooling room to the refrigerating room based on the refrigerating room temperature sensor, and cool air supplied from the cooling room to the freezing room. And a freezer damper that controls based on the above. A refrigerator according to an example of the present disclosure includes a compressor whose operation is controlled based on a detection result of a freezer temperature sensor. In the refrigerator according to an example of the present disclosure, when the refrigerator is in the open state, the freezer damper is in the open state, and the compressor is stopped, the freezer damper is in the closed state for a predetermined time after the compressor is stopped. The blower is configured to operate with the damper opened.

With such a configuration, it is possible to effectively use the cooler cooler while the compressor is stopped, to efficiently cool the refrigerator compartment while suppressing the heat effect on the freezer compartment, and to provide a highly energy-saving refrigerator. .

Further, the refrigerator according to an example of the present disclosure may be configured such that the predetermined time after the compressor is stopped is the time until the temperature detected by the refrigerator temperature sensor reaches the temperature at which the refrigerator damper is closed. Good.

With this configuration, it is possible to appropriately and effectively use the cooling energy of the cooler when the compressor is stopped.

In addition, in the refrigerator according to an example of the present disclosure, the rotation speed of the blower that operates with the freezer damper closed and the refrigerating chamber damper open for a predetermined time after the compressor is stopped is smaller than the rotation speed during the compressor operation. It may be set as follows.

With such a configuration, it is possible to further effectively use the cooler's cold energy while the compressor is stopped, to efficiently cool the refrigerator compartment while suppressing the heat effect on the freezer room, and to provide a highly energy-saving refrigerator. Can do.

In addition, the present disclosure provides a refrigerator that can effectively use the cooling energy of the cooler after the end of the precooling operation performed before the start of the defrosting operation.

Specifically, a refrigerator according to an example of the present disclosure includes a refrigerator room and a freezer room as a storage room. In addition, a refrigerator according to an example of the present disclosure includes a cooling chamber that is disposed behind the freezer compartment and that stores a cooler and a blower that supply cold air to the refrigerator compartment and the freezer compartment. A refrigerator according to an example of the present disclosure includes a refrigerating room temperature sensor provided in the refrigerating room, and a freezing room temperature sensor provided in the freezing room. In addition, a refrigerator according to an example of the present disclosure includes a refrigerating room damper that controls cold air supplied from the cooling room to the refrigerating room based on the refrigerating room temperature sensor, and cool air supplied from the cooling room to the freezing room. And a freezer damper that controls based on the above. Moreover, the refrigerator by an example of this indication is provided with the compressor by which an operation is controlled based on a freezer temperature sensor, and the defrost heater which melts the frost of a cooler. In addition, a refrigerator according to an example of the present disclosure has a refrigerator in which a refrigeration chamber damper is closed and a freezing chamber damper is opened before a defrost heater is energized, and the fan and the compressor are continuously operated for a predetermined time (first predetermined time). After the cool mode and the precool mode, the compressor is stopped, the refrigerator compartment damper is opened, the freezer compartment damper is closed, and the fan is operated for a predetermined time (second predetermined time). Have.

With such a configuration, the cooler after the precooling operation performed before the start of the defrosting operation can be effectively used for cooling the refrigerator compartment, and a highly energy-saving refrigerator can be provided.

Further, the refrigerator according to an example of the present disclosure may be configured to close the refrigerator compartment damper and open the freezer compartment damper when energizing the defrost heater that melts the frost of the cooler. With such a configuration, by introducing cold air by natural convection from the freezer compartment, it is possible to promote upward airflow around the cooler when the defrosting heater is energized, and to improve the defrosting efficiency of the cooler.

Further, in the refrigerator according to an example of the present disclosure, the freezer compartment damper may be provided in the freezer compartment cold air return passage through which the cold air supplied to the freezer compartment is returned to the cooler chamber. With such a configuration, the defrosting efficiency of the cooler can be increased while effectively utilizing the cooling chamber space.

Also, the present disclosure provides a refrigerator that has a simple structure and can prevent condensation in the vegetable compartment while keeping the vegetable compartment in high humidity.

Specifically, a refrigerator according to an example of the present disclosure includes a refrigerator room, a freezer room, and a vegetable room as a storage room. In addition, a refrigerator according to an example of the present disclosure includes a cooling chamber that is disposed behind the freezer compartment and that stores a cooler that supplies cold air to the refrigerator compartment, the freezer compartment, and the vegetable compartment and a blower. In addition, a refrigerator according to an example of the present disclosure includes a refrigerator compartment damper that controls cold air supplied from the cooling chamber to the refrigerator compartment, and a vegetable compartment damper that controls cold air supplied from the refrigerator compartment to the vegetable compartment. Moreover, the refrigerator by an example of this indication is provided with the humidity sensor which detects the humidity in a vegetable compartment, and the vegetable compartment heater which heats a vegetable compartment. The vegetable room damper is controlled to open and close based on the detected temperature in the vegetable room, and the vegetable room heater is configured to be energized and controlled based on the detected humidity of the humidity sensor.

With such a configuration, it is possible to prevent condensation in the vegetable compartment while keeping the vegetable compartment in a high humidity with a simple structure.

In the refrigerator according to the example of the present disclosure, the humidity sensor may be disposed on the top surface of the vegetable room. With such a configuration, the humidity in the vegetable compartment can be detected with high accuracy.

In the refrigerator according to an example of the present disclosure, the vegetable room heater may be disposed on a partition wall with the storage room above the vegetable room. With such a configuration, it is possible to reliably prevent condensation in the vegetable room, particularly on the top surface where condensation easily occurs.

Also, the present disclosure provides a refrigerator that can perform appropriate cooling control according to the amount of storage in the storage room.

Specifically, a refrigerator according to an example of the present disclosure includes a refrigerator room as a storage room. The refrigerator according to an example of the present disclosure may include a light source and an optical sensor in the refrigerator compartment. The refrigerator according to an example of the present disclosure may include a door opening / closing detection sensor that detects opening / closing of the door of the refrigerator compartment. In this case, the refrigerator according to an example of the present disclosure detects the storage change amount between the previous time and the current time in the refrigeration room by the light source and the optical sensor after the door closing detection by the door opening / closing detection sensor, and detects the door closing and opens the door for a predetermined time. When the operation is not performed, the absolute storage amount in the refrigerator compartment may be detected by the light source and the optical sensor.

With this configuration, it is possible to selectively use the previous and current storage change detections in the storage chamber and the absolute storage detection in the storage chamber. Therefore, with such a configuration, it is possible to perform appropriate cooling control according to the storage amount in the storage chamber.

In addition, a refrigerator according to an example of the present disclosure is controlled so that it is determined whether to continue or cancel the energy-saving operation based on the storage change amount between the previous time and the current time in the refrigerator compartment detected by the light source and the optical sensor. It may be configured. With such a configuration, it is possible to perform appropriate cooling control taking into account the usage of the user.

In addition, the refrigerator according to an example of the present disclosure controls an operation for increasing the rotation speed of the compressor (rotational speed shift-up operation) based on the absolute storage amount in the refrigerator compartment detected by the light source and the optical sensor. It may be configured. With such a configuration, it is possible to select the rotation speed of the compressor according to the absolute storage amount in the refrigerator compartment, and it is possible to perform appropriate cooling control according to the storage amount in the storage chamber.

FIG. 1 is a front view of a refrigerator according to an example of an embodiment of the present disclosure. Drawing 2 is a top view which looked at the inside of the refrigerator by an example of an embodiment of this indication from the front. FIG. 3 is a cross-sectional view of a refrigerator according to an example of the embodiment of the present disclosure. FIG. 4 is a diagram for explaining a cold air flow of the refrigerator according to an example of the embodiment of the present disclosure. Drawing 5 is a top view which looked at the freezer compartment of the refrigerator by an example of an embodiment of this indication from the front. FIG. 6 is a cross-sectional view illustrating a cooling chamber portion of a refrigerator according to an example of the embodiment of the present disclosure. FIG. 7 is a cross-sectional view illustrating a vegetable compartment duct and a refrigerator compartment return duct of a refrigerator according to an example of the embodiment of the present disclosure. FIG. 8 is an exploded perspective view illustrating a cooling chamber portion of a refrigerator according to an example of the embodiment of the present disclosure. FIG. 9 is an exploded perspective view of a cooling chamber portion of a refrigerator according to an example of the embodiment of the present disclosure as viewed from the cooling chamber side. FIG. 10 is a perspective view of the cooling chamber as viewed from the cooling chamber side while leaving a part of the cooling chamber forming plate of the refrigerator according to an example of the embodiment of the present disclosure. FIG. 11 is a plan view illustrating a relationship between a cooling room forming plate and a vegetable room duct of a refrigerator according to an example of the embodiment of the present disclosure as viewed from the freezer room side. FIG. 12 is a perspective view of a relationship between a cooling room forming plate and a vegetable room duct of a refrigerator according to an example of the embodiment of the present disclosure as viewed from the freezer room side. FIG. 13 is a perspective view illustrating a refrigerator compartment of a refrigerator according to an example of the embodiment of the present disclosure. FIG. 14 is a cross-sectional view of the inside of a refrigerator compartment of a refrigerator according to an example of an embodiment of the present disclosure as viewed from the side. FIG. 15A is a diagram schematically showing a cross section of the A part of FIG. 14 cut in the horizontal direction. FIG. 15B is a diagram schematically showing a cross section of the portion B in FIG. 14 cut in the horizontal direction. FIG. 15C is a diagram schematically showing a cross section of the portion C in FIG. 14 cut in the horizontal direction. FIG. 16 is a cross-sectional view of the refrigerator compartment duct of the refrigerator according to an example of the embodiment of the present disclosure cut in the horizontal direction. FIG. 17 is a diagram for describing the configuration of the discharge port of the refrigerator compartment duct of the refrigerator according to an example of the embodiment of the present disclosure. FIG. 18 is an essential part enlarged cross-sectional view showing a refrigerator compartment of a refrigerator according to an example of the embodiment of the present disclosure. FIG. 19 is a plan view of the inside of the refrigerator compartment of the refrigerator according to an example of the embodiment of the present disclosure as viewed from the front. FIG. 20 is an enlarged view of a main part when the refrigerator compartment inside the refrigerator according to an example of the embodiment of the present disclosure is viewed from the front. FIG. 21 is an exploded perspective view illustrating a storage room of a refrigerator according to an example of the embodiment of the present disclosure. FIG. 22 is a perspective view of the rear part of the partial chamber in the storage chamber of the refrigerator according to an example of the embodiment of the present disclosure as viewed from the back side of the refrigerator. FIG. 23 is an enlarged perspective view of the rear part of the partial chamber in the storage chamber of the refrigerator according to an example of the embodiment of the present disclosure as viewed from the back side of the refrigerator. FIG. 24 is another enlarged perspective view of the rear part of the partial chamber in the storage chamber of the refrigerator according to an example of the embodiment of the present disclosure as viewed from the back side of the refrigerator. FIG. 25 is an enlarged view of a main part when a deodorizing unit mounting portion in the rear part of the partial chamber in the storage chamber of the refrigerator according to an example of the embodiment of the present disclosure is viewed from the side. FIG. 26 is an enlarged perspective view showing a deodorizing unit mounting portion at the rear of the partial chamber in the refrigerator storage chamber according to an example of the embodiment of the present disclosure. FIG. 27 is a perspective view of the cooling chamber as viewed from the back side of the refrigerator with the refrigerator cooler according to an example of the embodiment of the present disclosure removed. FIG. 28 is a plan view of the cooling chamber as viewed from the rear side of the refrigerator with the refrigerator cooler according to an example of the embodiment of the present disclosure removed. FIG. 29 is a plan view showing a back plate of a freezer compartment of a refrigerator according to an example of the embodiment of the present disclosure. FIG. 30 is an exploded perspective view of a cooling chamber of a refrigerator according to an example of the embodiment of the present disclosure. FIG. 31 is a perspective view of the cooling chamber of the refrigerator according to an example of the embodiment of the present disclosure as viewed from the front lick. FIG. 32 is an enlarged view of a main part of a cooling chamber of a refrigerator according to an example of the embodiment of the present disclosure. FIG. 33 is an enlarged view of another main part of the cooling chamber of the refrigerator according to an example of the embodiment of the present disclosure. FIG. 34A is a perspective view illustrating a freezer damper of a refrigerator according to an example of the embodiment of the present disclosure. FIG. 34B is a diagram for describing a configuration of a freezer damper of a refrigerator according to an example of the embodiment of the present disclosure. FIG. 35 is a control block diagram of a refrigerator according to an example of the embodiment of the present disclosure. FIG. 36 is a flowchart illustrating basic control of the refrigerator cooling system according to an example of the embodiment of the present disclosure. FIG. 37 is a flowchart of flap opening control of the refrigerator cooling system according to an example of the embodiment of the present disclosure. FIG. 38 is a flowchart of flap opening control of the refrigerator cooling system according to an example of the embodiment of the present disclosure. FIG. 39 is a flowchart illustrating off-cycle control of the refrigerator cooling system according to an example of the embodiment of the present disclosure. FIG. 40 is a timing chart illustrating off-cycle control of the refrigerator cooling system according to an example of the embodiment of the present disclosure. FIG. 41 is a flowchart illustrating the defrost control of the refrigerator cooling system according to an example of the embodiment of the present disclosure. FIG. 42 is a timing chart illustrating the defrost control of the refrigerator cooling system according to an example of the embodiment of the present disclosure. FIG. 43 is a flowchart illustrating control of the vegetable room heater by the humidity sensor of the vegetable room of the refrigerator according to an example of the embodiment of the present disclosure. FIG. 44 is a diagram illustrating a relationship between an outside temperature of a vegetable room heater and a current supply rate by a humidity sensor of a vegetable room of a refrigerator according to an example of an embodiment of the present disclosure. FIG. 45 is a flowchart illustrating the cooling system control performed based on the detection result of the storage amount in the refrigerator compartment in the refrigerator according to an example of the embodiment of the present disclosure.

Hereinafter, exemplary embodiments of the present disclosure will be described with reference to the drawings. Note that the present disclosure is not limited to the following embodiments.

(Embodiment 1)
1 to 4 are diagrams for explaining the overall configuration of the refrigerator. FIG. 5 to FIG. 12 are diagrams for explaining the cold air supply configuration from the cooling room to the vegetable room. 13 to 26 are diagrams for explaining the structure of the refrigerator compartment. FIG. 27 to FIG. 34 are diagrams for explaining a configuration of a portion extending from the freezing chamber to the cooling chamber.

<1-1. Overall configuration of refrigerator>
First, the overall configuration of the refrigerator will be described with reference to FIGS.

1 to 4, a refrigerator 100 according to an example of the embodiment of the present disclosure includes a refrigerator body 1 having an opening at the front. The refrigerator main body 1 includes a metal outer box 2, a hard resin inner box 3, and a foam insulation 4 filled between the outer box 2 and the inner box 3. The refrigerator main body 1 has a plurality of storage chambers formed by partitioning the inside thereof by

partition plates

5 and 6. Each of the plurality of storage rooms of the refrigerator main body 1 has a rotary door 7 or a drawer-

type door

8, 9, 10, 11 in which the same heat insulation configuration as that of the refrigerator main body 1 is adopted. Each of the plurality of storage rooms is configured to be openable and closable by

doors

7, 8, 9, 10, and 11.

The plurality of storage chambers formed in the refrigerator main body 1 are provided next to the uppermost refrigeration chamber 14, a switching chamber 15 provided under the refrigeration chamber 14 and capable of switching a temperature zone, and the switching chamber 15. The ice making room 16 is constituted by a switching room 15 and a freezing room 18 provided under the ice making room 16 and a lowermost vegetable room 17. The refrigerator compartment 14 is provided with a plurality of shelf boards 20. In the lower part of the refrigerator compartment 14, a partial chamber 21 and a chilled chamber 22 having different cooling temperature zones are provided in two upper and lower stages.

The refrigerated room 14 is a storage room for refrigerated storage, and is cooled at a low temperature that does not freeze, specifically, normally set to 1 ° C. to 5 ° C. In addition, the partial chamber 21 provided in the refrigerator compartment 14 is set to −2 ° C. to −3 ° C. suitable for micro freezing storage and cooled. The chilled chamber 22 is set to a temperature around 1 ° C., which is lower than the refrigerator compartment 14 and higher than the partial chamber 21, and is cooled.

The vegetable room 17 is a storage room whose temperature is set equal to or slightly higher than that of the refrigerated room 14, and is specifically set to 2 to 7 ° C. and cooled. Since the vegetable compartment 17 becomes high humidity due to moisture emitted from stored foods such as vegetables, condensation may occur if it is too cold locally. Therefore, the temperature of the vegetable compartment 17 is set to a relatively high temperature to reduce the amount of cooling (amount of cold air) and suppress the occurrence of condensation due to local overcooling.

The freezing room 18 is a storage room set in a freezing temperature zone, and specifically, it is normally set to −22 ° C. to −18 ° C. and cooled. Note that the freezer compartment 18 may be cooled at a low temperature such as −30 ° C. or −25 ° C., for example, in order to improve the frozen storage state.

The switching chamber 15 is a storage chamber in which the temperature in the warehouse can be changed, and is configured to be switched from a refrigeration temperature zone to a freezing temperature zone according to the application.

On the other hand, a cooling chamber 23 is provided behind the freezing chamber 18. The cooling chamber 23 is provided with a cooler 24 that generates cool air and a cooling fan 25 that supplies the cool air to each storage chamber. Further, a defrosting section 26 (hereinafter referred to as a glass tube heater 26; FIG. 6) composed of a glass tube heater or the like is provided below the cooler 24.

In the cooler 24, a compressor (comp) 27, a condenser (not shown), a heat radiating pipe (not shown), and a capillary tube (not shown) are annularly connected to form a refrigeration cycle. Is configured. Each storage chamber is cooled by the circulation of the refrigerant compressed by the compressor 27.

The cooling fan 25 is provided above the cooler 24. The cooling fan 25 cools the refrigeration room 14, the freezing room 18, the vegetable room 17 and the like through the refrigerating room duct 28, the freezing room duct 29 (FIG. 6), and the vegetable room duct 30 connected to the downstream side thereof. And each of the storage chambers is cooled.

Hereinafter, the configuration of each of the cooling chamber 23, the refrigerator compartment 14, the freezer compartment 18 and the vegetable compartment 17 and the configuration of cooling of each compartment will be described.

<1-2. Cooling chamber and cool air supply configuration>
The cooling chamber and the cold air supply configuration will be described with reference to FIG. 3 and FIGS.

The cooling chamber 23 is provided behind the freezing chamber 18 and is formed of a cooling chamber forming plate 31 and an inner box 3 as shown in FIG. The cooling fan 25 is positioned above the cooler 24 by being mounted on the upper part of the cooling chamber forming plate 31. A freezer compartment back plate 32 is mounted on the front side of the cooling chamber forming plate 31, and the downstream side of the cooling fan 25 is covered with the freezer compartment back plate 32. A freezer compartment duct 29 that communicates with the downstream side of the cooling fan 25 is formed between the freezer compartment back plate 32 and the cooling compartment 23.

The cold room duct 28 of the cold room 14 and the vegetable room duct 30 of the vegetable room 17 are connected to the cooling room 23 separately and independently at different positions on the downstream side of the cooling fan 25. More specifically, the upper surface of the upper portion of the cooling chamber 23 on the downstream side of the cooling fan has a first cold air supply port 33 provided in the partition plate 5 that partitions the refrigerator compartment 14 and the freezer compartment 18 as shown in FIG. To the refrigerator compartment duct 28. As shown in FIGS. 10, 11, and 12, a second cold air supply port 34 is provided on the side of the upper portion of the cooling chamber 23 on the downstream side of the cooling fan 25 to which the vegetable compartment duct 30 is connected. Yes. That is, the refrigerator compartment duct 28 and the vegetable compartment duct 30 are individually and independently connected to the cooling compartment 23 at different positions. Thereby, the cold air produced | generated by the cooler 24 is separately supplied by the cooling fan 25 to the 1st cold air supply port 33 and the 2nd cold air supply port 34 separately, respectively. 30 each.

Below the cooler 24, as shown in FIG. 6, a cross-sectional umbrella-shaped heater cover 35 that covers the glass tube heater 26 is installed. Further, a drain port 36 for discharging defrost water to the outside is provided on the bottom surface of the cooling chamber 23.

<1-3. Cold room and its cooling configuration>
Next, the refrigerator compartment and its cooling configuration will be described with reference to FIG. 3 and FIGS.

The refrigerator compartment 14 is located in the uppermost part of the refrigerator main body 1 and has a plurality of shelf boards 20 as shown in FIGS. 3 and 14. In addition, the refrigerator compartment 14 is provided with a refrigerator compartment duct 28 on the back surface.

As shown in FIG. 21, the refrigerator compartment duct 28 is configured such that the refrigerator compartment side surface of the duct member 28a is covered with a resin duct cover 28b. The duct member 28a is made of, for example, polystyrene foam. The refrigerator compartment duct 28 is attached to the back of the refrigerator compartment 14 so as to cover the first cold air supply port 33 of the partition plate 5 that partitions the refrigerator compartment 14 and the freezer compartment 18, and communicates with the cooling compartment 23. A refrigerator compartment damper 37 is incorporated in the first cold air supply port 33. The amount of cold air supplied from the cooling chamber 23 to the refrigerator compartment 14 is controlled by opening and closing the refrigerator compartment damper 37. The refrigerator compartment damper 37 is fixed to the first cold air supply port 33 by a damper fixing frame 38.

The refrigerating room damper 37 includes a double damper having a refrigerating room damper unit 39 that controls the amount of cold air supplied to the refrigerating room 14 and a partial room damper unit 40 that controls the amount of cold air supplied to the partial room 21. It consists of The refrigeration chamber damper 37 is configured to be driven by one refrigeration and partial motor (not shown) in the refrigeration damper driving motor unit 41.

On the other hand, among the partial chamber 21 and the chilled chamber 22 provided in the lower part of the refrigerator compartment 14, the chilled chamber 22 located above is a ceiling plate 43 serving as the lowest shelf as shown in FIGS. And the partial chamber 21 located therebelow is formed in the full width of the refrigerator compartment 14. Further, a chilled chamber container 44 is provided in the chilled chamber 22 so as to be freely inserted and removed. At the rear of the chilled chamber 22, there is provided a cold air inlet 22 a communicating with the downstream side of the cold room damper portion 39 of the cold room duct 28. The chilled chamber 22 is configured to be cooled by taking in cold air from the cold air inlet 22a.

In the chilled chamber 22, as shown in FIG. 18, a slit-like cold air return port (chilled side) 45 is provided at the rear part of the ceiling plate 43. Further, the chilled chamber 22 is provided with a cold air return passage portion (chilled side) 46 connected to the refrigerator compartment 14 via a cold air return port (chilled side) 45 at the rear portion of the chilled chamber container 44. As shown in FIG. 14, an opening 48 connected to the inside of the refrigerator compartment 14 is provided at the front end of the chilled chamber container 44 between the chilled chamber door / handle portion 47. Thereby, the cold air in the refrigerator compartment 14 flows through the gap (not shown) on the outer periphery of the chilled chamber container 44 together with the cold air after cooling the chilled chamber 22 overflowing from the chilled chamber container 44, and returns to the cold air return passage (chilled side). ) 46.

In the chilled chamber 22, a temperature adjusting heater 49 is laid on the ceiling plate member 50 of the partial chamber 21 located below the chilled chamber container 44. When the temperature of the chilled chamber 22 becomes lower than the set temperature due to cold radiation from the partial chamber 21 located below the chilled chamber 22, the temperature adjusting heater 49 is energized, and the chilled chamber 22 is maintained at the set temperature. It is configured as follows. The temperature adjusting heater 49 is configured to be controlled based on a temperature detected by a chilled chamber temperature sensor (not shown) provided at an appropriate position in the chilled chamber 22.

On the other hand, the partial chamber 21 located below the chilled chamber 22 is configured to store water by an inner wall surface of the inner box 3 of the refrigerator body 1, a water tank chamber 12 forming plate, and a ceiling plate member 50 that also serves as a bottom surface of the chilled chamber 22. A compartment is formed beside the tank chamber 12 (see FIGS. 13 and 14). A front opening portion of the partial chamber 21 is configured to be freely opened and closed by a partial chamber door 51. A partial chamber container 52 is provided inside the partial chamber 21 so as to be freely inserted and removed.

A heat insulating material 53 made of foamed polystyrene or the like is incorporated in the ceiling plate member 50 constituting the partial chamber 21. A partial cold air passage 54 communicating with the downstream side of the partial chamber damper portion 40 of the refrigerator compartment duct 28 is formed in the heat insulating material 53 (see FIG. 14). The cold air is supplied into the partial chamber 21 through the partial cold air passage 54, and the partial chamber 21 is cooled.

Further, as shown in FIGS. 18 and 22 to 24, the partial chamber 21 is provided with a slit-like cold air return port (partial side) 55 at the rear portion of the ceiling plate member 50, as in the chilled chamber 22. A space portion is provided behind the partial chamber container 52 to form a cold air return passage portion (partial side) 56. With such a configuration, the refrigeration chamber cold air in the cold air return passage portion (chilled side) 46 behind the chilled chamber 22 and the chilled chamber cold air flow to the cold air return passage portion (partial side) 56.

Furthermore, a cool air confluence return port 57 that communicates with the cool air return passage portion (partial side) 56 is provided at the rear of the partition plate 5 that also serves as the bottom surface of the partial chamber 21. In the refrigerator 100, a cold room cooling duct return duct 58 is connected to the cold air confluence return port 57 (see FIGS. 4 and 7), and the cold air that has cooled the cold room 14 and the chilled room 22 overflows from the partial room container 52. It is configured to merge with the cooling air and return to the cooling chamber 23.

That is, a duct portion for returning the cool air in the refrigerator compartment 14, the chilled chamber 22 and the partial chamber 21 to the cooling chamber 23 is formed using the rear space of the chilled chamber 22 and the partial chamber 21.

Note that the cold air return port (chilled side) 45 and the cold air return port (partial side) 55 are provided at positions facing vertically as shown in FIG. Further, the cold air return port (partial side) 55 and the cold air merging return port 57 are provided at positions shifted in the left-right direction as shown in FIG.

Further, the refrigeration chamber return duct 58 for returning the cold air to the cooling chamber 23 is installed on the side (side) of the cooling chamber 23 as shown in FIGS. The lower end of the refrigerator compartment return duct 58 is open to the lower side surface of the cooling chamber 23. With such a configuration, the cool air is returned to the cooling chamber 23. In the refrigerator compartment return duct 58, a concave groove 58b (see FIG. 27) provided on the rear surface thereof is pressed against the back inner wall surface of the inner box 3, and between the concave groove 58b and the rear inner wall surface of the inner box 3, A duct passage portion is formed.

Further, in the partial chamber 21, as shown in FIG. 19 and FIG. 20, in the portion between the cold air return port (partial side) 55 of the cold air return passage portion (partial side) 56 and the cold air merging return port 57, A refrigerating room temperature sensor 59 for detecting the temperature of the refrigerating room 14 and controlling the refrigerating room damper unit 39 is provided. A partial chamber temperature sensor 60 for detecting the temperature of the partial chamber 21 and controlling the partial chamber damper 40 is provided at the opposite diagonal portion across the refrigerator compartment temperature sensor 59 and the refrigerator compartment duct 28.

Further, between the cold air return port (partial side) 55 of the cold air return passage portion (partial side) 56 and the cold air confluence return port 57, as shown in FIGS. 25 and 26, along the flow of the cold air, A deodorizing unit 61 is detachably provided.

The deodorizing unit 61 is attached to and integrated with a mounting portion 28bb provided in a part of the duct cover 28b constituting the refrigerator compartment return duct 58. Similarly, the refrigerating room temperature sensor 59 and the partial room temperature sensor 60 are attached to respective mounting portions (not shown) provided in a part of the duct cover 28 b constituting the refrigerating room return duct 58.

15A to 15C are a horizontal cross-sectional view (a cross-sectional view cut in the horizontal direction of the refrigerating chamber damper portion) in the refrigerating chamber duct 28 shown in FIG. The room rear surface part) horizontal sectional view and the C part (refrigeration room duct part) horizontal sectional view are respectively schematically shown.

15A to 15C, W / D (hereinafter referred to as aspect ratio) represented by the ratio of the long side W and the short side D of the duct member 28a in the refrigerator compartment duct 28 is the A portion aspect ratio = W1 /. When D1, B portion aspect ratio = W2 / D2, and C portion aspect ratio = W3 / D3, there is a relationship of A portion aspect ratio <B portion aspect ratio <C portion aspect ratio.

FIG. 16 is a cross-sectional view of the refrigerator compartment duct 28 cut in the horizontal direction, and FIG. 17 is a diagram for explaining the configuration of the discharge port of the refrigerator compartment duct 28.

As shown in FIG. 16, on both the left and right sides of the duct cover 28b that covers the surface of the duct member 28a on the refrigerator compartment 14 side, there are provided extending ribs 28c that are integrally formed extending left and right.

As shown in FIG. 16, the extending rib 28 c includes an inclined surface that is inclined from the surface on the refrigerator compartment 14 side of the duct cover 28 b toward the back side of the refrigerator 100. Further, as shown in FIG. 16, the end portion of the extending rib 28c extends from the surface of the duct cover 28b on the refrigerator compartment 14 (see FIG. 14) side to the back side of the refrigerator 100 at a larger inclination angle. Yes. The extension rib 28c extends to such an extent that the side discharge port 28d is not directly visible when the user of the refrigerator 100 views the refrigerator compartment 14 from the front.

Further, as shown in FIG. 17, the lower surface of the side discharge port 28d has a slope that is inclined so that the cool air discharged from the side discharge port 28d flows upward.

Further, a recess is formed in the side wall of the inner box 3 in front of each shelf board 20 in the refrigerator compartment 14. A substrate having an LED illumination 80 (see FIG. 14) for illuminating the inside of the refrigerator compartment 14 and a refrigerator compartment light sensor 81 for detecting the illuminance of light from the LED illumination 80 when the door is closed is embedded in the recess. Yes. Further, a transmissive illumination cover that covers the recess is provided on the side wall in the refrigerator compartment 14.

The cooling system of the refrigerator 100 is controlled based on the detection result of the refrigerator light sensor 81 that detects the illuminance of light from the LED lighting 80 when the door is closed. Details thereof will be described later.

<1-4. Freezer room and its cooling configuration>
Next, the freezer compartment and its cooling configuration will be described with reference to FIG. 2, FIG. 3 and FIGS.

As shown in FIG. 3, the freezer compartment 18 is provided below the refrigerating compartment 14 and in front of the cooling compartment 23. Inside the freezer compartment 18, a freezer compartment container 62, which is composed of a lower container 62 a and an upper container 62 b placed thereabove, is provided so that it can be taken in and out as the door 11 is opened and closed. . As described above, the freezer compartment back plate 32 is disposed between the freezer compartment 18 and the cooling compartment 23. Further, a freezer compartment duct 29 is formed between the freezer compartment back plate 32 and the cooling chamber forming plate 31 and communicates with the downstream side of the cooling fan 25 provided in the cooling chamber 23 (see FIG. 6).

The freezer compartment back plate 32 is provided with cold air outlets 63 in a plurality of upper and lower stages as shown in FIG. The uppermost cold air outlet 63 supplies cold air to the ice making chamber 16 and the switching chamber 15, and the middle cold air outlet 63 supplies cold air to the upper container 62 b of the freezer compartment 62, and the lowermost cold air outlet 63 is configured to supply cold air to the lower container 62a.

Further, as shown in FIG. 27 and the like, the freezer compartment 18 is provided with a freezer cold air return port 64 communicating with the lower portion of the cooling chamber 23 at the lower portion of the freezer rear plate 32. As shown in FIG. 32, the refrigerated cold air return port 64 is composed of a freezer compartment side frame portion 65 and a cooling compartment side mouth frame portion 66. The freezer compartment side rim portion 65 and the cooling compartment side rim portion 66 are inclined so as to be located at the rear, that is, on the cooling chamber 23 side with respect to the vertical line as they go upward. The freezing cold air return port 64 is provided with a grill 67 on the freezing chamber side opening frame portion 65, and a freezing chamber damper 68 is provided on the cooling chamber side opening frame portion 66.

The grill 67 provided in the freezer compartment side frame portion 65 rectifies the cold air flowing from the freezer compartment 18 to the cooling compartment 23. The grille piece 69 constituting the grille 67 is inclined so that the end on the cooling chamber 23 side is located above the end on the freezer compartment 18 side, and the length of the grille piece 69 becomes the lower grille piece 69. It is configured to be long. That is, the grill 67 is configured to have a shape along the shape of the rear surface of the freezer compartment 62 in the freezer compartment 18.

On the other hand, the freezer compartment damper 68 provided in the cooling compartment side frame 66 controls the amount of cold air supplied to the freezer compartment 18. As shown in FIG. 31, FIG. 34A and FIG. 34B, the freezer compartment damper 68 is formed of a similar heat resistant resin on a damper frame 70 formed of a heat resistant resin, for example, polyphenylene sulfide resin (PPS resin). A plurality of flaps 71, in the present embodiment, three flaps 71 are provided. The freezer compartment damper 68 is pivotally supported at each cooling chamber side end of each of the plurality of flaps 71, and as shown in FIGS. 31 to 34A and 34B, on the cooling chamber 23 side opposite to the freezer compartment 18. Configured to open. The freezer compartment damper 68 is configured to be driven by a freezing damper driving motor unit 72 fixed to one end portion of the damper frame 70. In FIG. 34B, the solid line of the flap 71 indicates a state where the plurality of flaps 71 are closed, and the broken line of the flap 71 indicates a state where the plurality of flaps 71 are opened. Further, as shown in FIG. 28, the freezer compartment damper 68 has a damper frame body 70 in a state where the freezer damper driving motor unit 72 is fixed to a claw piece 73 provided in the cooling compartment side opening frame portion 66. By being engaged and engaged, the cooling chamber forming plate 31 is mounted and unitized. Thereby, along the inclination of the cooling chamber side opening frame part 66, the cooling chamber 23 side of the freezer compartment damper 68 is inclined so as to be positioned below the freezing chamber 18 side.

Furthermore, as shown in FIG. 32, the freezer compartment damper 68 is provided so that the cold air flowing to the cooling chamber 23 along the plurality of flaps 71 flows to the lower edge of the cooler 24. In the present embodiment, the freezer compartment damper 68 has an upper part (an upper piece part of the damper frame 70) located above the lower end edge of the cooler 24 and a lower part (a lower part part of the damper frame 70). ) Is located below the lower end of the cooler 24. As described above, the refrigerator 100 according to the present embodiment is configured such that the cold air flows from the lower end edge of the cooler 24 to the lower portion.

Furthermore, the freezer compartment damper 68 is provided such that its lower part (lower part of the damper frame 70) is located above the glass tube heater 26. That is, the warm / cool air heated by the glass tube heater 26 at the time of defrosting is set so as to surely touch the freezer compartment damper 68.

On the other hand, as shown in FIG. 32, the lower side 66a of the cooling chamber side opening frame portion 66 supporting the freezing chamber damper 68 is formed of a double wall. The double wall has a shape in which the bottom surface is formed in an arc shape and protrudes into the cooling chamber 23 (a shape protruding from the bottom surface of the cooling chamber 23 toward the glass tube heater 26). Thereby, it is comprised so that the radiant heat from the glass tube heater 26 may prevent direct irradiation to the freezer compartment damper 68. Further, the gap portion 66 b of the double wall portion of the cooling chamber side frame portion 66 is open facing the freezing chamber 18. With such a configuration, the gap portion 66b is configured to be cooled by the cold air in the freezer compartment, and to prevent the freezer compartment damper 68 from being excessively heated.

In addition, as shown in FIG. 28, the freezer damper 68 includes a heater unit 26a so that the motor unit 72 for driving the freezing damper does not face the heater unit 26a of the glass tube heater 26 in the longitudinal direction of the glass tube heater 26. It is arranged at a position shifted from the outside. In the present embodiment, the refrigeration damper driving motor unit 72 is located on the side of the refrigeration chamber return duct 58 next to the cooling chamber 23. With such a configuration, the refrigeration damper driving motor unit 72 is positioned outside the heater portion 26a, and the plurality of flaps 71 of the freezing chamber damper 68 are center lines in the left-right direction of the cooler 24. It is comprised so that it may be located in a side part.

Note that the freezer damper 68 is provided only in the freezing cold air return port 64, and no freezer is provided in the freezing chamber duct 29 from the cooling chamber 23 to the cold air outlet 63, and the freezing chamber 23 and the freezer The chamber 18 is kept in communication.

<1-5. Vegetable room and its cooling configuration>
Next, the vegetable room and its cooling configuration will be described with reference to FIGS. 3, 4 and 8 to 12.

The vegetable compartment 17 is arrange | positioned at the lowest part of the refrigerator main body 1 below the freezer compartment 18, as shown in FIG. Similar to the freezer compartment 18, a vegetable compartment container 17 a is provided in the vegetable compartment 17 so that it can be taken in and out as the door 10 is pulled out. As shown in FIGS. 8 and 9, the vegetable compartment duct 30 for supplying cold air to the vegetable compartment 17 is disposed in front of and behind the refrigeration compartment return duct 58 next to the cooling compartment 23. As shown in FIGS. 4 and 10, the upper part of the vegetable compartment duct 30 is connected to a second cold air supply port 34 provided in the cooling chamber 23.

As described above, the second cold air supply port 34 is formed separately and independently from the first cold air supply port 33 serving as the cold air supply port to the refrigerator compartment 14. That is, the second cold air supply port 34 is below the partition plate 5 that partitions the refrigerator compartment 14 and the freezer compartment 18 positioned above the cooler compartment 23, that is, within the rear projection area of the freezer compartment 18, and the cooling fan 25. Are provided at the downstream side portion of the cooling fan 25 at substantially the same height. The lower end of the vegetable compartment duct 30 connected to the second cold air supply port 34 opens to the upper portion of the vegetable compartment 17 and is configured to supply cold air to the vegetable compartment 17.

The opening 74 is provided in the side part of the upper end part of the vegetable compartment duct 30. As shown in FIG. The opening 74 is abutted and connected to the second cold air supply port 34. A vegetable room damper 75 is incorporated in the vicinity of the connecting portion, specifically, in the height position range substantially the same as that of the cooling fan 25.

Further, as shown in FIG. 8, the vegetable compartment damper 75 is fitted in a concave groove 58b that is formed in the front surface of the refrigerator compartment return duct 58 and serves as a vegetable compartment duct passage portion. The vegetable compartment duct 30 is fitted and attached to the front surface of the concave groove 58b of the refrigerator compartment return duct 58 in a state in which the vegetable compartment damper 75 is fitted. With such a configuration, the vegetable compartment damper 75 is sandwiched and fixed between the refrigerator compartment return duct 58 and the vegetable compartment duct 30. The vegetable compartment duct 30 and the refrigerator compartment return duct 58 are formed of a material having elastic force such as foamed polystyrene, and the airtightness between the two is ensured by the elastic force, and the airtightness of the vegetable compartment damper 75 is also ensured. It is configured to be secured.

The vegetable compartment damper 75 is configured such that a damper piece 75a driven by the vegetable damper drive motor unit 76 opens in a direction opposite to the cold air flowing through the vegetable compartment duct 30, upward in the present embodiment. Yes. This is the direction opposite to the damper opening direction of the refrigerator compartment duct 28 described above.

Also, the cold air after cooling the vegetable compartment 17 is returned to the cooling compartment 23 via a vegetable compartment return duct (not shown) provided on the ceiling surface of the vegetable compartment 17.

Moreover, in the vegetable compartment 17, the side of the vegetable compartment container 17a so that the vegetable compartment container 17a supported by the door frame fixed to the door 10 of the vegetable compartment and pulled out forward, and the upper surface of the vegetable compartment container 17a may be covered. An upper vegetable case supported by the upper flange. Each of the vegetable compartment container 17a and the upper vegetable case has a structure with improved sealing performance. Thereby, the transpiration | evaporation of the water | moisture content generate | occur | produced from the vegetable stored in an inside, a fruit, etc. can be suppressed and the freshness of vegetables, a fruit, etc. can be improved.

Also, a recess is provided on the vegetable compartment 17 side of the partition plate 6 that insulates the vegetable compartment 17 and the freezing compartment 18 from each other. A mist generator is provided inside the recess. The mist generator has a high voltage generator and an electrode, and the electrode is configured to be supplied with moisture collected by condensing moisture in the storage.

In addition, a vegetable room humidity sensor 78 that detects the humidity in the vegetable room 17 is provided on the substrate that houses the high voltage generating unit (see FIG. 3).

Also, a vegetable room heater 79 is provided on the vegetable compartment 17 side of the partition plate 6 that insulates the vegetable compartment 17 and the freezing compartment 18 (see FIG. 3). The energization of the vegetable room heater 79 is controlled in accordance with the humidity detected by the vegetable room humidity sensor 78 provided on the top of the vegetable room 17. Details of this control will be described later.

For the refrigerator 100 configured as described above, a control flow and operational effects will be described below using a block diagram and a flowchart.

<2-1. Basic cooling control>
FIG. 35 is a control block diagram of refrigerator 100 of the present embodiment, and FIG. 36 is a flowchart showing basic control of the refrigerator cooling system of the present embodiment.

In FIG. 35, input information of a microcomputer 90 that controls the cooling system of the refrigerator 100 includes an outside air temperature sensor (ATC) 91, a freezer temperature sensor (FCC) 92, a refrigerator temperature sensor (PCC) 59, a partial A room temperature sensor (PFC) 60, a vegetable room temperature sensor (VCC) 93, a cooler temperature sensor (DFC) 94, a door open / close detection unit 95, an external illuminance sensor 96, and a refrigerator room light sensor 81. The output control device of the microcomputer 90 includes a compressor (comp) 27, a cooling fan (FC fan) 25, a cold room damper (PC damper) 37, a partial room damper (PF damper) 98, a vegetable room damper (VC damper) 75, They are a freezer compartment damper (FC damper) 68 and a defrosting section (defrost heater) 26.

In FIG. 36, when the refrigerator 100 is turned on (step S-1), normal temperature control is started (step S-2). In the normal temperature control, the outside temperature sensor (ATC) 91, the freezer temperature sensor (FCC) 92, the refrigerating room temperature sensor (PCC) 59, the partial room temperature sensor (PFC) 60, and the vegetable room temperature sensor (VCC) On the basis of each temperature information of 93, the microcomputer 90 makes a compressor (comp) 27, a cooling fan (FC fan) 25, a cold room damper (PC damper) 37, a partial room damper (PF damper) 98, a vegetable room damper ( VC damper) 75 and freezer damper (FC damper) 68 are controlled.

After that, the microcomputer 90 uses the information from the door opening / closing detection unit 95, the information from the external illuminance sensor 96 that detects the brightness around the refrigerator, or the storage amount information from the refrigerator light sensor 81, so that the refrigerator 100 is less used. A band is predicted and it is determined whether or not to shift to an energy saving mode (hereinafter referred to as an energy saving mode) (step S-3). In the present disclosure, the operation in the energy saving mode is referred to as energy saving operation (abbreviated energy saving operation). If the mode does not shift to the energy saving mode (N in step S-3), the microcomputer 90 performs flap opening / closing control to fully open or close the flaps of each damper (step S-7).

When shifting to the energy saving mode (Y in step S-3), the microcomputer 90 determines whether the outside air temperature sensor (ATC) 91 is higher than a predetermined temperature (ATC ≧ T1) (step S-4). The energy saving operation condition refers to a condition in which the microcomputer 90 determines that the microcomputer 90 shifts to the energy saving mode and the outside air temperature sensor (ATC) 91 is higher than a predetermined temperature (Y in step S-4). When the outside air temperature sensor (ATC) 91 is higher than the predetermined temperature (Y in Step S-4), the microcomputer 90 controls the opening / closing angles of the flaps of the refrigerator compartment damper (PC damper) 37 and the freezer compartment damper (FC damper) 68. The flap opening degree control is performed (step S-5). The specific control in the flap opening control (step S-5) will be described later.

In step S-4, if the outside air temperature sensor (ATC) 91 is lower than the predetermined temperature (T1) (N in step S-4), the microcomputer 90 is in the initial state where the compressor (comp) 27 is stopped. Then, the refrigerating room damper (PC damper) 37 is opened and the cooling fan (FC fan) 25 is operated to perform off-cycle control (step S-6). The specific control in the off cycle control (step S-6) will be described later.

The above-described controls are repeated until a defrost signal for starting the defrosting section (defrosting heater) 26 of the cooler 24 is input (N in step S-8). When the defrost signal is input (Y in step S-8), the microcomputer 90 performs defrost control (step S-9). The specific control in the defrost control (step S-9) will be described later.

As described above, the refrigerator 100 according to an example of the embodiment of the present disclosure includes the storage chamber, the cooling chamber 23 that supplies the cool air to the storage chamber, and stores the cooler 24 and the blower (cooling fan 25). And a damper for controlling the cool air supplied from the cooling chamber 23 to the storage chamber in the duct. In refrigerator 100 of the present embodiment, the damper has a flap and a drive device. The refrigerator 100 according to an example of the embodiment of the present disclosure includes a flap opening / closing control (step S-7) that controls opening / closing of the flap by a driving device according to whether or not the operation of the flap shifts to the energy saving mode. In addition, at least one of flap opening control (step S-5) for controlling the opening / closing angle of the flap is performed. More specifically, the refrigerator 100 of the present embodiment has flap opening control (step S-5) for controlling the opening / closing angle of the damper flap when it is desired to reduce the temperature fluctuation in each storage chamber in the energy saving mode. It is configured to be performed.

That is, the refrigerator 100 of the present embodiment is configured such that the flap opening degree control of the damper is not performed more than necessary. With such a configuration, complicated control such as flap origin position confirmation control required for flap opening control by a stepping motor or the like of the drive device can be reduced. Therefore, according to the configuration of the refrigerator 100 of the present embodiment, it is possible to provide a refrigerator capable of cooling with high reliability and high energy saving with simple specifications.

Moreover, the refrigerator 100 of the present embodiment may be configured to be operated under at least one of the energy-saving operation conditions and the normal operation conditions. In this case, the refrigerator 100 may be configured such that the flap opening degree control is performed during the energy saving operation condition, and the flap opening / closing control is performed during the normal operation condition. For example, the refrigerator 100 may be configured such that the flap opening degree control of each damper is performed only when energy saving operation is required. With such a configuration, it is possible to provide a refrigerator capable of cooling with high energy saving and reliability with simple specifications.

<2-2. Flap opening control>
Next, flap opening degree control is demonstrated.

37 and 38 are flowcharts showing details of flap opening control (step S-5 in FIG. 36) of the cooling system of the refrigerator according to an example of the embodiment of the present disclosure.

The various controls described below are performed by the microcomputer 90 unless otherwise specified. As shown in FIG. 37, first, the temperature of the refrigerator temperature sensor (PCC) 59 is measured every minute for N minutes (for example, 10 minutes) (step S-10). Thereafter, the measurement results for N minutes (for example, 10 minutes) are averaged (step S-11). The measured average temperature is compared with the set value of the refrigerator temperature sensor (PCC) 59 (step S-12), and the temperature difference ΔT between the average temperature for N minutes and the set value of the refrigerator temperature sensor (PCC) 59 is calculated. Calculate (step S-13). The flap opening degree (angle) of the refrigerator compartment damper (PC damper) 37 is changed according to the temperature difference ΔT (step S-14).

More specifically, as shown in FIG. 38, the set value (target temperature) of the refrigerator compartment temperature sensor (PCC) 59, the upper limit value, and the lower limit value are confirmed (step S-15). The upper limit value and the lower limit value are a set value (target temperature) having a range, and an upper limit value and a lower limit value of the range. Next, the average temperature of the refrigerator temperature sensor (PCC) 59 for the latest several minutes (for example, 10 minutes every minute) is confirmed (step S-16).

Next, the set value (target temperature) of the refrigerating room temperature sensor (PCC) 59 is compared with the average temperature of the latest several minutes (for example, 10 minutes every minute), and the temperature difference (ΔT) is confirmed ( Step S-17). When the temperature difference (ΔT) is large and the average value is lower than the lower limit value of the set value (target temperature), the opening degree (angle) of the flap of the refrigerator compartment damper (PC damper) 37 is set to a predetermined angle (of the driving device). (Step number of stepping motor or the like) is reduced (step S-18).

In step S-17, if the average value is between the upper limit value and the lower limit value of the set value (target temperature), the flap opening degree (angle) of the refrigerator compartment damper (PC damper) 37 is not changed (step S-19). In step S-17, when the temperature difference (ΔT) is large and the average value is higher than the upper limit value of the set value (target temperature), the opening degree (angle) of the flap of the refrigerator compartment damper (PC damper) 37 is set. A predetermined angle (the number of steps of the stepping motor or the like of the driving device) is increased (step S-20).

Thereafter, the process returns to step S-16, and the above control is repeated every predetermined time (for example, every 10 minutes). That is, the average temperature of the cold room temperature sensor (PCC) 59 before a predetermined time (for example, 10 minutes every minute) is compared with a set value (target temperature), and the temperature difference ΔT is set according to the value (level). Thereafter, the opening (angle) of the flap of the refrigerator compartment damper (PC damper) 37 is controlled.

As described above, the refrigerator 100 according to an example of the embodiment of the present disclosure includes the refrigerator compartment 14 as a storage compartment. In addition, the refrigerator 100 according to an example of the embodiment of the present disclosure includes a cooling chamber 23 in which a cooler 24 and a blower (cooling fan 25) that supply cold air to the refrigerator compartment 14 are housed. The refrigerator 100 according to an example of the embodiment of the present disclosure may include a cold room damper (PC damper) 37 that controls the cold air supplied from the cooling room 23 to the cold room 14 in the duct. Further, the refrigerator 100 according to an example of the embodiment of the present disclosure may include a refrigerator temperature sensor (PCC) 59 that detects the temperature in the refrigerator compartment 14. In the refrigerator 100 according to an example of the embodiment of the present disclosure, the refrigerator compartment damper (PC damper) 37 may include a flap and a driving device. The refrigerator 100 according to an example of the embodiment of the present disclosure may be configured such that the flap operation is controlled by a drive device to perform flap opening control for controlling the opening of the flap. Moreover, in the refrigerator 100 according to an example of the embodiment of the present disclosure, the refrigerator compartment damper (PC damper) 37 includes the average temperature of the refrigerator compartment temperature sensor (PCC) 59 and the refrigerator compartment target temperature during a predetermined time before the flap operation. Based on the above, the flap opening degree control may be performed by changing the flap angle by the driving device. With such a configuration, it is possible to reduce the temperature fluctuation in the refrigerator compartment 14 and to bring it closer to the storage room target temperature, and to provide an easy-to-use refrigerator with improved energy saving.

Further, the refrigerator 100 according to an example of the embodiment of the present disclosure may be configured such that the flap opening degree control is performed during the energy saving operation condition. With such a configuration, when the energy saving operation is necessary, the opening degree control of the damper flap is performed. Therefore, it is possible to provide a refrigerator capable of cooling with high energy saving and high reliability with a simple specification.

Note that the refrigerator 100 according to the example of the embodiment of the present disclosure has been described by taking the refrigerator compartment damper (PC damper) 37 that controls the supply of cold air to the refrigerator compartment 14 as an example, but is not limited to this aspect, and is not limited to this embodiment. Can also be applied to a freezer damper (FC damper) 68 that controls the supply of cold air to the freezer 18. Furthermore, the present invention can also be applied to a switching chamber damper (SC damper) that controls the supply of cold air to the switching chamber 15 or a vegetable chamber damper (VC damper) 75 that controls the supply of cold air to the vegetable chamber 17.

<2-3. Off-cycle control>
Next, the off cycle control will be described.

FIG. 39 is a flowchart showing off-cycle control of the refrigerator cooling system according to an example of the embodiment of the present disclosure. FIG. 40 is a timing chart illustrating off-cycle control of the refrigerator cooling system according to an example of the embodiment of the present disclosure.

In FIG. 39, when an ON signal is output to the compressor (comp) 27 (step S-21), the compressor (comp) 27 and the cooling fan (FC fan) 25 are operated, and at the same time, the freezer compartment damper (FC damper) ) 68 is opened (step S-27). Thereby, the cold air generated by the cooler 24 is supplied to the freezer compartment 18, and the freezer compartment 18 is cooled, and the cold air is supplied to the refrigerator compartment damper (PC damper) 37 disposed in the cold air duct to the refrigerator compartment 14. Is supplied.

In the refrigerator compartment 14, it is determined whether the refrigerator compartment temperature sensor (PCC) 59 is equal to or higher than the OFF temperature (step S-22). If the cold room temperature sensor (PCC) 59 is equal to or lower than the OFF temperature in step S-22 (N in step S-22), the cold room damper (PC damper) 37 is closed (step S-26). In step S-22, if the cold room temperature sensor (PCC) 59 is not lower than the OFF temperature (Y in step S-22), the cold room damper (PC damper) 37 is opened (step S-23). Thereafter, it is determined whether the refrigerator temperature sensor (PCC) 59 reaches the OFF temperature (step S-24).

When the cold room temperature sensor (PCC) 59 reaches the OFF temperature (Y in step S-24), the cold room damper (PC damper) 37 is closed (step S-26). Before the refrigerator temperature sensor (PCC) 59 reaches the OFF temperature (N in Step S-24), the freezer temperature sensor (FCC) 92 reaches the OFF temperature, and an OFF signal is output to the compressor (comp) 27. When this is done (step S-25), the compressor (comp) 27 is stopped. However, in a state where the compressor (comp) 27 is stopped before the refrigerator compartment temperature sensor (PCC) 59 reaches the OFF temperature, it is determined whether the refrigerator compartment temperature sensor (PCC) 59 is equal to or higher than a predetermined temperature (Poff). (Step S-28).

If the cold room temperature sensor (PCC) 59 is lower than the predetermined temperature (Poff) in step S-28 (N in step S-28), the cold room damper (PC damper) 37 is closed (step S-30). . However, when the cold room temperature sensor (PCC) 59 is equal to or higher than the predetermined temperature (Poff) (Y in step S-28), the cold room damper (PC damper) 37 is opened and the cooling fan (FC fan) 25 is Off-cycle cooling control is performed in which the compressor (comp) 27 is operated at a speed lower than the rotational speed at the time of ON (step S-29). The off-cycle cooling control (step S-29) is performed until an initial predetermined time (Tpc) immediately after the compressor (comp) 27 receives the OFF signal or until the refrigerator temperature sensor (PCC) 59 reaches the OFF temperature. Thereafter, the refrigerator compartment damper (PC damper) 37 is closed (step S-30).

Referring to the timing chart of FIG. 40, when the compressor (comp) 27 is turned on, the cooling fan (FC fan) 25 is turned on, and the freezer compartment damper (FC damper) 68 and the refrigerator compartment damper (PC damper) 37 are opened. (ON) (point e). The refrigerator compartment damper (PC damper) 37 performs open / close control (ON and OFF) according to the temperature of the refrigerator compartment temperature sensor (PCC) 59 while the compressor 27 is ON. When the compressor (comp) 27 is turned off, the cooling fan (FC fan) 25 is also turned off, and the freezer damper (FC damper) 68 is closed (OFF) (point f). At this point (point f), if the refrigerator compartment damper (PC damper) 37 is open, the refrigerator compartment damper (PC damper) 37 is opened and the cooling fan (FC fan) 25 is connected to the compressor (compressor). ) Off-cycle cooling control is performed when the engine is operated for a predetermined time at a speed lower than the rotational speed at 27 ON (points f to g). Thereafter, the cooling fan (FC fan) 25 is stopped, and the refrigerator compartment damper (PC damper) 37 is closed (OFF) (point g).

Thereafter, similar control is performed. However, if the refrigerator compartment damper (PC damper) 37 is closed (OFF) at the time (point i) when the compressor (comp) 27 is turned OFF (the above control (OFF)). (Cycle cooling control) is not performed.

As described above, the refrigerator 100 according to an example of the embodiment of the present disclosure includes the refrigerator compartment 14 and the freezer compartment 18 as storage rooms. In addition, the refrigerator 100 according to an example of the embodiment of the present disclosure is disposed at the rear of the freezer compartment 18, and includes a cooler 24 that supplies cold air to the refrigerating chamber 14 and the freezer compartment 18, and a cooling chamber 23 in which the cooling fan 25 is housed. Is provided. In addition, the refrigerator 100 according to an example of the embodiment of the present disclosure includes a refrigerating room damper 37 that controls the cold air supplied from the cooling room 23 to the refrigerating room 14 based on the refrigerating room temperature sensor 59, and the cooling room 23 to the freezing room. 18 is provided with a freezer damper 68 that controls the cool air supplied to 18 based on a freezer temperature sensor 92. The refrigerator 100 according to an example of the embodiment of the present disclosure includes the compressor 27 whose operation is controlled based on the freezer temperature sensor 92. Furthermore, in the refrigerator 100 according to an example of the embodiment of the present disclosure, when the refrigerator 27 is in an open state and the freezer compartment damper 68 is in an open state and the compressor 27 is stopped, a predetermined time after the compressor 27 is stopped. The cooling fan 25 is operated with the freezer compartment damper 68 closed and the refrigerator compartment damper 37 opened. With such a configuration, the cooler 24 can be effectively used while the compressor 27 is stopped, the heat effect on the freezer 18 can be suppressed, the refrigerator 14 can be efficiently cooled, and a highly energy-saving refrigerator can be obtained. Can be provided.

Further, the predetermined time after the compressor 27 is stopped may be set to be a time until the refrigerator compartment temperature sensor 59 reaches a temperature at which the refrigerator compartment damper 37 is closed. With such a configuration, the cool heat of the cooler 24 when the compressor 27 is stopped can be appropriately used effectively.

Further, for a predetermined time after the compressor 27 is stopped, the rotational speed of the cooling fan 25 that is operated with the freezer damper 68 closed and the refrigerator compartment damper 37 open is smaller than the rotational speed during the compressor 27 operation. It may be set as follows. With such a configuration, the cooler 24 can be used more effectively while the compressor 27 is stopped, the thermal effect on the freezer compartment 18 is suppressed, the refrigerator compartment 14 is efficiently cooled, and the energy-saving refrigerator. Can be provided.

In the present embodiment, the refrigerator compartment damper (PC damper) 37 is described as being controlled to open and close, but the refrigerator 100 is configured to control the opening degree (angle) of the flap described above. Also good. In this case, the temperature fluctuation in the refrigerator compartment 14 can be reduced to approach the storage room target temperature, and energy saving can be further enhanced.

<2-4. Defrost control>
Next, defrost control will be described.

FIG. 41 is a flowchart illustrating the defrost control of the refrigerator cooling system according to an example of the embodiment of the present disclosure. FIG. 42 is a timing chart illustrating the defrost control of the refrigerator cooling system according to an example of the embodiment of the present disclosure.

As shown in FIG. 41, when a defrost signal is input (step S-32), the compressor 27 performs a continuous operation (precool control) for a predetermined time. Then, it is determined whether the cooler temperature sensor (DFC) is equal to or lower than the T2 temperature (step S-33). If the temperature is equal to or lower than the T2 temperature (Y in step S-33), the refrigerator compartment damper (PC damper) 37 is opened, and the freezer compartment The damper (FC damper) 68 is closed, and the cooling fan (FC fan) 25 is turned on (step S-34). The operation is continued in this state until the cooler temperature sensor (DFC) rises to the T2 temperature (step S-35). When the cooler temperature sensor (DFC) reaches the T2 temperature in step S-35 (Y in step S-35), the refrigerator compartment damper 37 is closed, the freezer compartment damper 68 is opened, and the cooling fan (FC fan) 25 is The defroster (defrost heater) 26 is turned on (step S-37). In addition, while the defrosting part (defrost heater) 26 is ON, the freezer compartment damper 68 is open. If the cooler temperature sensor (DFC) is equal to or higher than the T2 temperature in step S-33 (N in step S-33), steps S-34 and S-35 are not performed, and step S-36 is performed. Migrate to

After step S-37, it is determined whether the cooler temperature sensor (DFC) is equal to or higher than the T4 temperature (step S-38). If the temperature is equal to or higher than the T4 temperature (Y in step S-38), the defrosting section (defrost heater) 26 Is turned off and start waiting control is performed (step S-39). After the startup waiting time has elapsed, the compressor 27 is started to operate by a comp ON signal (step S-40), and FC fan delay control is performed in which the cooling fan (FC fan) 25 is turned on after being turned off for a predetermined time. Further, when the cooler temperature sensor (DFC) becomes lower than the freezer temperature sensor (FCC), the freezer damper 68 is opened (step S-41). Thereafter, a normal cooling operation is performed (step S-42).

Referring to the timing chart of FIG. 42, when a defrost signal is input during normal cooling operation (points k to l), the precooling is performed such that the compressor (comp) 27 and the cooling fan (FC fan) 25 are continuously operated for a predetermined time. Control is performed (1 point to m point). During the precool control, the freezer compartment 18 (FC damper) 37 is closed and the freezer compartment damper (FC damper) 68 is opened to preferentially cool the freezer compartment 18. After the precool control is finished, the compressor 27 is stopped. However, for effective use of the cooler 24 cooler and preliminary defrosting of the cooler, the refrigerator compartment damper 37 is opened and the freezer damper 68 is opened until the cooler temperature sensor (DFC) rises to the T2 temperature. The cooling fan pre-cooling and pre-defrosting control for operating the cooling fan (FC fan) 25 is performed (m point to n point). Then, the defrosting section 26 is energized, and the frost stacked on the cooler 24 is melted by the heat of the defrost heater (n point to o point). During the defrosting, the refrigerator compartment damper 37 is closed and the freezer compartment damper 68 is opened.

When the cooler temperature sensor (DFC) reaches the T4 temperature or higher, the defrosting section (defrost heater) 26 is turned off and start waiting control is performed (points o to p). During start-up control, the refrigerator compartment damper 37 is opened and the freezer compartment damper 68 is opened. Thereafter, the compressor 27 is started. At this time, fan delay control is performed (p point to q point) in which the cooling fan (FC fan) 25 is turned off for a predetermined time. During the fan delay control, the refrigerator compartment damper 37 is opened and the freezer compartment damper 68 is closed. Thereafter, the cooling fan (FC fan) 25 is turned on after the fan delay control, but the freezer damper 68 is kept closed until the cooler temperature sensor (DFC) becomes lower than the freezer temperature sensor (FCC). FC damper delay control is performed (q point to r point). Thereafter, when the cooler temperature sensor (DFC) becomes lower than the freezer temperature sensor (FCC), the freezer damper 68 is opened, and then normal cooling operation is performed (from the point r).

As described above, the refrigerator 100 according to an example of the embodiment of the present disclosure includes the refrigerator compartment 14 and the freezer compartment 18 as storage rooms. In addition, the refrigerator 100 according to an example of the embodiment of the present disclosure is disposed at the rear of the freezer compartment 18 and is provided with a cooler 24 and a cooling fan 25 that supply cold air to the refrigerator compartment 14 and the freezer compartment 18. A chamber 23 is provided. The refrigerator 100 according to an example of the embodiment of the present disclosure includes a refrigerating room temperature sensor 59 that detects the temperature in the refrigerating room 14 and a freezing room temperature sensor 92 that detects the temperature of the freezing room 18. In addition, the refrigerator 100 according to an example of the embodiment of the present disclosure includes a refrigerating room damper 37 that controls the cold air supplied from the cooling room 23 to the refrigerating room 14 based on the refrigerating room temperature sensor 59, and the cooling room 23 to the freezing room. 18 may be provided with a freezer damper 68 that controls the cold air supplied to 18 based on the freezer temperature sensor 92. In addition, the refrigerator 100 according to an example of the embodiment of the present disclosure includes a compressor 27 whose operation is controlled based on the freezer temperature sensor 92 and a defrosting unit (defrosting heater) 26 that melts the frost of the cooler 24. You may have. Furthermore, in the refrigerator 100 according to an example of the embodiment of the present disclosure, before the defrosting unit 26 is energized, the refrigerator compartment damper 37 is closed and the freezer compartment damper 68 is opened, and the cooling fan 25 and the compressor 27 are installed. In the precool mode and the precool mode, the compressor 27 is stopped, the refrigerator compartment damper 37 is opened, the freezer compartment damper 68 is closed, and the cooling fan 25 is operated for a prescribed time. You may have pre-defrost mode. With such a configuration, it is possible to effectively use the cooling heat of the cooler 24 after the end of the precooling operation performed before the start of the defrosting operation for cooling the refrigerator compartment 14, and provide a refrigerator with high energy saving. it can.

In addition, the refrigerator 100 according to an example of the embodiment of the present disclosure is configured such that the refrigerator compartment damper 37 is closed and the freezer compartment damper 68 is opened when the defrosting unit 26 that melts the frost of the cooler 24 is energized. It may be configured. With such a configuration, by introducing cold air by natural convection from the freezer compartment 18, it is possible to promote an updraft around the cooler when the defroster (defrosting heater) 26 is energized and to improve the defrosting efficiency of the cooler 24. it can.

Further, in the refrigerator 100 according to an example of the embodiment of the present disclosure, the freezer compartment damper 68 may be provided in a freezer compartment cold air return passage through which the cold air supplied to the freezer compartment 18 is returned to the cooling chamber 23. With such a configuration, the defrosting efficiency of the cooler 24 can be increased while effectively utilizing the space of the cooling chamber 23.

In the refrigerator 100 according to an example of the embodiment of the present disclosure, the cooling fan (FC fan) 25 is turned on after the fan delay control, but the cooler temperature sensor (DFC) is lower than the freezer temperature sensor (FCC). Until that happens, the freezer damper 68 may be configured to perform FC damper delay control to maintain a closed state. With such a configuration, until the cooler 24 is sufficiently cooled, the cool air is not supplied to the freezer compartment 18 and can be supplied to the refrigerating compartment 14 side, preventing the temperature rise of the freezer compartment 18 and the refrigerating compartment 14. This makes it possible to efficiently cool.

In addition, the refrigerator 100 according to an example of the embodiment of the present disclosure is configured such that the freezer damper 68 is opened when the cooler temperature sensor (DFC) becomes lower than the freezer temperature sensor (FCC). May be. With such a configuration, the cold air sufficiently cooled by the cooler 24 can be supplied to the freezer compartment 18 and the temperature rise of the freezer compartment 18 can be reliably prevented.

Note that, in the refrigerator 100 according to the example of the embodiment of the present disclosure, the refrigerator compartment damper 37 is opened and the freezer compartment damper 68 is closed until the cooler temperature sensor (DFC) rises to the T2 temperature. The number of rotations of the cooling fan (FC fan) 25 that operates the fan (FC fan) 25 during the pre-cooling (pre-cooling) and pre-defrosting control of the refrigerator is set to be higher than the number of rotations when the compressor 27 is ON. May be. In this case, it is possible to shorten the refrigerating room pre-cooling and pre-defrosting control time, to efficiently use the cooling heat of the cooler 24, to shorten the total defrosting time, and to remove the freezing room 18 Temperature rise due to frost can be suppressed.

In addition, the refrigerator 100 according to an example of the embodiment of the present disclosure is configured to start at least one of the modes during start-up waiting control after completion of defrosting, during fan delay control, and during FC damper delay control, or each mode. At the start of this, it is desirable to perform opening / closing control that forcibly fully opens and closes at least one of the flaps of the refrigerator compartment damper 37 and the freezer compartment damper 68. With such a configuration, it is possible to remove water adhering to the vicinity of the flap of each damper after defrosting, to suppress problems of each damper due to moisture icing, and to improve the reliability of the refrigerator.

<2-5. Temperature and humidity control in vegetable room>
Next, temperature and humidity control of the vegetable room will be described.

FIG. 43 is a flowchart showing the control of the vegetable room heater by the humidity sensor of the vegetable room of the refrigerator according to an example of the embodiment of the present disclosure. FIG. 44 is a diagram illustrating a relationship between an outside temperature of a vegetable room heater and a current supply rate by a humidity sensor of a vegetable room of a refrigerator according to an example of an embodiment of the present disclosure.

43, in the temperature and humidity control of the vegetable compartment 17, first, the humidity in the vegetable compartment 17 is measured by the vegetable compartment humidity sensor 78 (step S-51). The microcomputer 90 determines whether the humidity in the vegetable compartment 17 is H1 or less (step S-52), and if it is H1 or less (Y in step S-52), the vegetable compartment heater 79 is energized and controlled at an energization rate K ( Step S-53). Then, energization control is performed at an energization rate K for a predetermined time (T4) (step S-54). If the humidity in the vegetable compartment 17 is H1 or higher in step S-52 (N in step S-52), it is further determined whether it is H2 or higher (step S-55). If the humidity in the vegetable compartment 17 is equal to or higher than H2 in step S-55 (Y in step S-55), the vegetable compartment heater 79 is energized and controlled with the energization rate L (step S-56). Then, energization control is performed at an energization rate L for a predetermined time (T4) (step S-57). If the humidity in the vegetable compartment 17 is equal to or lower than H2 in step S-55 (ie, the humidity in the vegetable compartment 17 is between H1 and H2) (N in step S-55), the vegetable compartment heater 79 is turned on at an energization rate M. Energization control is performed (step S-58). Then, energization control is performed at an energization rate M for a predetermined time (T4) (step S-59).

Specifically, as shown in FIG. 44, the energization rate of the vegetable room heater 79 by the vegetable room humidity sensor 78 is determined for each outside air temperature. For example, the energization rate of the vegetable room heater 79 is higher at high humidity (RH 85% or more) than at medium humidity (RH 20 to 85%), and at low humidity (RH 20% or less) at medium humidity (20 to 85%). %) To lower the energization rate of the vegetable room heater 79.

In FIG. 44, the energization rate at high humidity is represented by VCTH energization rate M, the energization rate at medium humidity is represented by VCTH energization rate L, and the energization rate at low humidity is represented by VCTH energization rate K.

With such a configuration, it becomes possible to control the energization rate of the vegetable room heater according to the humidity in the vegetable room 17, and with a simple structure, while keeping the inside of the vegetable room 17 at high humidity, condensation in the vegetable room 17 can be achieved. Can be prevented. In a conventional refrigerator without a vegetable room humidity sensor, the energization rate of the vegetable room heater is determined based on medium humidity conditions from the balance of reliability against condensation and energy saving, but in this embodiment, the vegetable room humidity sensor Appropriate energization control of the vegetable room heater 79 is possible according to the detection result of 78. Therefore, with such a configuration, it is possible to balance the reliability of condensation and energy saving on a high level, and to achieve both energy saving and freshness of the vegetable compartment.

As described above, the refrigerator 100 according to an example of the embodiment of the present disclosure may include the refrigerator compartment 14, the freezer compartment 18, and the vegetable compartment 17 as storage rooms. In addition, the refrigerator 100 according to an example of the embodiment of the present disclosure is disposed behind the freezer compartment 18 and supplies a cooler 24 to each storage compartment (the refrigerator compartment 14, the freezer compartment 18 and the vegetable compartment 17), A cooling chamber 23 in which the cooling fan 25 is housed is provided. A refrigerator 100 according to an example of the embodiment of the present disclosure includes a refrigerator compartment damper 37 that controls the cold air supplied from the cooling chamber 23 to the refrigerator compartment 14, and a vegetable that controls the cold air supplied from the cooling chamber 23 to the vegetable compartment 17. A chamber damper 75 may be provided. The refrigerator 100 according to an example of the embodiment of the present disclosure may include a vegetable room humidity sensor 78 that detects the humidity in the vegetable room 17 and a vegetable room heater 79 that heats the vegetable room 17. Furthermore, in the refrigerator 100 according to an example of the embodiment of the present disclosure, the vegetable room damper 75 is controlled to open and close based on the detected temperature in the vegetable room 17, and the vegetable room heater 79 is based on the detected humidity of the vegetable room humidity sensor 78. It may be configured to be energized. With such a configuration, it becomes possible to control the energization rate of the vegetable room heater 79 according to the humidity in the vegetable room 17, and with a simple structure, the condensation in the vegetable room 17 is maintained while keeping the inside of the vegetable room 17 highly humid. It is possible to provide a refrigerator that can prevent the above.

Further, in the refrigerator 100 according to an example of the embodiment of the present disclosure, the vegetable room humidity sensor 78 may be disposed on the top surface portion of the vegetable room 17. With such a configuration, the humidity in the vegetable compartment 17 can be detected with high accuracy.

Further, in the refrigerator 100 according to an example of the embodiment of the present disclosure, the vegetable room heater 79 may be disposed on a partition wall with the storage room above the vegetable room 17. With such a configuration, it is possible to reliably prevent condensation on the top surface of the vegetable compartment 17 that is particularly susceptible to condensation.

<2-6. Storage amount detection control of refrigerator compartment>
Next, the storage amount detection control of the refrigerator compartment 14 will be described.

FIG. 45 is a flowchart showing cooling system control performed based on the detection result of the storage amount in the refrigerator compartment of the refrigerator according to an example of the embodiment of the present disclosure. As described above, the various controls described below are performed by the microcomputer 90 unless otherwise specified.

In FIG. 45, when the door switch detects that the door 7 (PC door) of the refrigerator compartment 14 is closed (step S-61), the LED which is the illumination in the refrigerator compartment 14 is irradiated, and the illuminance is detected by the refrigerator compartment optical sensor 81. The difference between the previous illuminance (converted voltage value) detected and stored in the memory and the current illuminance (converted voltage value) is determined. Then, the previous illuminance (converted voltage value) is compared with the current illuminance (converted voltage value) to calculate the amount of change (difference) in the storage amount in the refrigerator compartment 14 (step S-62). ). When the increase amount of the storage amount exceeds a predetermined threshold value, control for canceling the energy saving operation is performed. On the other hand, when the increase amount of the storage amount does not exceed the predetermined threshold, the energy saving operation is continued.

Next, it is determined whether the door 7 of the refrigerator compartment 14 is opened within a predetermined time (for example, 30 minutes) after the door switch detects that the door 7 (PC door) of the refrigerator compartment 14 is closed (step S-63). ). If the door 7 is opened (N in Step S-63), the process returns to Step S-61. In step S-63, if the door 7 is not opened for a predetermined time (for example, 30 minutes) (Y in step S-63), the LED that is the illumination in the refrigerator compartment 14 is irradiated, and a storage unit such as a memory The absolute storage amount in the refrigerator compartment 14 is calculated from the correlation data between the illuminance (converted voltage value) of the refrigerator compartment light sensor 81 stored in advance and the storage amount in the refrigerator compartment 14 (step S-64). ).

Next, it is determined whether the absolute storage amount is larger or smaller than S2 (step 65). In step 65, if the absolute storage amount is larger than S2 (Y in step 65), select the mode P when the storage amount is large (step S-67), change the fan voltage and the temperature control setting of each room, The rotational speed increase control of the compressor 27 is suppressed (shift-up control) (step S-70). On the other hand, if the absolute storage amount is S2 or less in step S-65 (N in step 65), it is determined whether the absolute storage amount is between S1 and S2 (step S-66). If the absolute storage amount is between S1 and S2 in step S-66 (Y in step S-66), the mode Q when the storage amount is medium is selected (step S-68), and the compressor 27 Is suppressed (step S-71). In step S-66, when the absolute storage amount is smaller than S1 (N in step S-66), the mode R when the storage amount is small is selected (step S-69), and the rotation speed of the compressor 27 is increased. Control is suppressed (step S-72).

Note that the control change in the mode P, mode Q, and mode R is not immediately after the determination in step S-65 or step S-66, but when the compressor 27 is temporarily turned OFF and the next compressor 27 is turned ON. The control of each mode P, mode Q, and mode R is changed.

As described above, the refrigerator 100 according to an example of the embodiment of the present disclosure may include the refrigerator compartment 14 as a storage compartment. In addition, the refrigerator 100 according to an example of the embodiment of the present disclosure may include the LED lighting 80 and the refrigerator compartment light sensor 81 in the refrigerator compartment 14. In addition, the refrigerator 100 according to an example of the embodiment of the present disclosure detects the amount of change in storage between the previous time and the current time in the refrigerating room 14 by the LED lighting 80 and the refrigerating room light sensor 81 after detecting the closing of the door. As a result, when the microcomputer 90 determines that the door is not opened for a predetermined time, the LED storage 80 and the refrigerator light sensor 81 detect the absolute storage amount in the refrigerator compartment 14. Also good. With such a configuration, it is possible to perform appropriate cooling control according to the amount of storage in the storage room, and it is possible to provide a user-friendly refrigerator.

In addition, the refrigerator 100 according to an example of the embodiment of the present disclosure is configured to perform energy saving operation based on the amount of change in storage between the previous time and the current time in the cold room 14 detected by the LED lighting 80 and the cold room light sensor 81. The microcomputer 90 may be configured to determine whether to continue or cancel the operation and to control the operation. With such a configuration, it is possible to perform appropriate cooling control taking into account the usage of the user.

Further, in the refrigerator 100 according to an example of the embodiment of the present disclosure, the rotation speed of the compressor 27 is controlled based on the absolute storage amount in the refrigerator compartment 14 detected by the LED lighting 80 and the refrigerator compartment light sensor 81. You may be comprised so that. With such a configuration, it is possible to select the number of rotations of the compressor 27 according to the absolute storage amount in the refrigerator compartment 14, and it is possible to perform appropriate cooling control according to the storage amount in the storage chamber.

In addition, the refrigerator 100 according to an example of the embodiment of the present disclosure includes the door 7 of the refrigerator compartment 14 within a predetermined time (for example, 30 minutes) after the door switch detects that the door 7 (PC door) of the refrigerator compartment 14 is closed. If the microcomputer 90 determines that there is no opening, the room is illuminated by the LED lighting 80 that is the lighting in the refrigerator compartment 14. And the refrigerator 100 by an example of embodiment of this indication is a correlation with the illumination intensity (converted voltage value) of the refrigerator compartment optical sensor 81 preserve | saved previously at memory | storage parts, such as memory, and the storage amount in the refrigerator compartment 14. FIG. The absolute storage amount in the refrigerator compartment 14 may be calculated from the data. With such a configuration, even if condensation or clouding occurs in the vicinity of the LED illumination 80 or the refrigeration room light sensor 81 that is temporarily illuminating in the refrigeration room 14 due to intrusion of outside air by opening and closing the door 7 of the refrigeration room 14, Since the door is closed for a predetermined time (for example, 30 minutes), disturbances such as condensation and clouding can be eliminated, and the absolute storage amount in the refrigerator compartment 14 can be calculated with high accuracy.

Further, in the refrigerator 100 according to the example of the embodiment of the present disclosure, the control change in the mode P, the mode Q, and the mode R is not performed immediately after the determination in step S-65 or step S-66, but the compressor 27 May be configured such that the control of each mode P, mode Q, and mode R is changed when the compressor 27 is once turned off and the next compressor 27 is turned on. With such a configuration, more stable cooling control can be performed.

This disclosure provides a simple specification and highly reliable refrigerator configured to control the opening degree of the flap of the damper when it is desired to reduce the temperature fluctuation in each storage chamber. Therefore, it can be applied to various types and sizes of refrigerators and freezing / refrigeration apparatuses for home use and business use.

DESCRIPTION OF SYMBOLS 1 Refrigerator main body 2 Outer box 3 Inner box 4

Foam insulation material

5,6

Partition plate

7,8,9,10,11 Door 12 Water storage tank room 14 Refrigeration room 15 Switching room 16 Ice making room 17 Vegetable room 17a Vegetable room container 18 Freezing Room 20 Shelf 21 Partial room (low temperature room)
22 Chilled room (low temperature room)
22a Cold air inlet 23 Cooling chamber 23a Bottom surface 24 Cooler 25 Cooling fan 26 Defrosting part (glass tube heater, defrost heater, defrost heater)
26a heater section 27 compressor 28 refrigerator compartment duct 28a duct member 28b duct cover 28bb mounting section

28c extension rib

28d side outlet 29 freezer compartment duct 30 vegetable compartment duct 31 cooling compartment forming plate 32 freezer compartment rear plate 33 first cold air supply Port 34 Second cold air supply port 35 Heater cover 36 Drain port 37 Refrigeration room damper 38 Damper fixing frame 39 Refrigeration room damper part 40 Partial room damper part 41 Refrigeration damper drive motor unit 43 Ceiling plate 44 Chilled room container 45 Cold air return Mouth (chilled side)
46 Cool air return passage (chilled side)
47 Chilled chamber door / grip 48 Opening 49 Temperature control heater 50 Ceiling plate member 51 Partial chamber door 52 Partial chamber container 53 Thermal insulation material 54 Partial cold air passage 55 Cold air return port (partial side)
56 Cold air return passage (partial side)
57 Cold air confluence return port 58 Refrigerating

chamber return ducts

58a, 58b Recessed groove 59 Refrigerating chamber temperature sensor 60 Partial chamber temperature sensor 61 Deodorizing unit 62 Freezer chamber vessel

62a Lower vessel

62b Upper vessel 63 Cold air outlet 64 Freezing cold air return port 65 Freezer chamber Side opening frame portion 66 Cooling chamber side opening frame portion 66a Lower side 66b Gap portion 67 Grill 68 Freezer compartment damper 69 Grill piece 70 Damper frame body 71 Flap 72 Freezing damper drive motor unit 73 Claw piece 74 Opening 75 Vegetable room damper 75a Damper piece 76 Vegetable damper drive motor unit 77 Heat shield plate 78 Vegetable room humidity sensor 79 Vegetable room heater (VC heater)
80 LED lighting 81 Light sensor in refrigerator compartment 90 Microcomputer 91 Outside temperature sensor (ATC)
92 Freezer temperature sensor (FCC)
93 Vegetable room temperature sensor (VCC)
94 Cooler temperature sensor (DFC)
95 Door open / close detector (door switch)
96 External illumination sensor 98 Partial room damper (PF damper)

Claims

A storage room;
A cooling chamber containing a cooler and a blower for supplying cold air to the storage chamber;
A damper for controlling the amount of the cold air supplied from the cooling chamber to the storage chamber,
The damper has a flap and a driving device, and the operation of the flap by the driving device includes a flap opening / closing control for controlling opening / closing of the flap and a flap opening control for controlling the opening of the flap. A refrigerator configured to be divided and controlled.
As the storage room, it has a refrigerator compartment and a freezer compartment,
The cooling chamber is arranged behind the freezing chamber,
As the damper, a refrigerator compartment damper that controls the amount of cold air supplied from the cooling chamber to the refrigerator compartment, and a freezer compartment damper that controls the amount of cold air supplied from the cooling chamber to the refrigerator compartment. Have
The refrigerator according to claim 1, wherein the flap of the refrigerator compartment damper and the flap of the freezer compartment damper are controlled independently of each other.
The opening control of the flap is performed under energy saving operation conditions,
The refrigerator according to claim 1 or 2, wherein the opening / closing control of the flap is configured to be performed under normal operating conditions.