JPH08117114A - Hot repository - Google Patents

Abstract

PURPOSE: To provide a hot repository in which temperature fluctuation inside a storeroom can be suppressed when a door is opened. CONSTITUTION: Concerning a hot repository 1, a forward opened storeroom 8 is formed inside a heat insulated cabinet 7, a front opening 8A of this storeroom 8 is freely openably closed by a door 11, and air heated by a warming heater 14 provided inside the heat insulated cabinet 7 is circulated inside the storeroom 8 by an air blower 16. A sucking port 33 is formed correspondingly to the upper part of the opening 8A of the storeroom 8, and the air exhausted into the storeroom 8 is sucked from the sucking port 33.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a warm storage used for keeping heat of cooked food, reheating food, and the like.

[0002]

2. Description of the Related Art Conventionally, as shown in Japanese Patent Application No. 5-293340 previously filed by the applicant, this kind of storage has a storage chamber formed inside a heat-insulating box which is open to the front. A heater or a humidifier is attached to the heater, and the warm air heated by the heater and humidified by the humidifier is forcedly circulated in the storage chamber by a blower, so that a constant temperature and humidity environment suitable for keeping the above-mentioned food in the storage chamber. I am trying.

A conventional refrigerator 1 according to a vertical side view of FIG.
The structure of 01 will be described. In the warm storage 101, a steel plate inner box 3 that also opens forward is installed in a front outer steel plate box 2 that is also open at a distance and is connected by a breaker (not shown). Foam insulation 6 between 3 and breaker
The front opening 8A of the storage chamber 8 formed in the inner box 3 is divided into upper and lower parts by a middle partition 9 extending left and right at the center. The upper and lower openings 8A are openably and closably closed by doors 11 and 11 (the upper door 11 is omitted in FIG. 7).

A rectangular through hole 12 is formed on the rear right side of the top wall 7A of the heat insulating box 7, and a heat insulating unit box 13 is formed so as to close the through hole 12 from above and open downward. It is attached and constitutes a part of the heat insulating box 7. A heating heater 14 as a heating device is installed in the unit box 13. A blower 16 composed of a sirocco fan is attached to the left side of the unit box 13, and its motor is fixed to the left outer surface of the unit box 13. The unit box 13 is partitioned by a fan casing 21 into a suction side where the heating heater 14 is present and a discharge side where the blower 16 is present.

On the top wall 7A of the heat insulating box 7, a water injection valve 2 for supplying water to a humidifying tray 22 which will be described later is arranged side by side with the unit box 13.
3 is attached, and its connection port 24 is connected to a water pipe (not shown). A control panel 26 is attached to the front end of the ceiling wall 7A, and a control box 27 is arranged on the rear side thereof.

A substantially gate-shaped upper duct plate 102 is attached to the upper part of the heat insulating box 7, and its upper surface 102A and left and right side surfaces 102B (right side surface is not shown) are the top surface 3A of the inner box 3 and It is spaced from the left and right side surfaces 3B (the right side surface is not shown). An upper duct 40 communicating with the inside of the unit box 13 is formed between the upper surface 102A and the top surface 3A. Further, the left-side corner portion of the upper duct plate 102 is recessed, and the humidifying tray 22 and the humidifying heater 42 which constitute the humidifying device 41 are arranged therein.

Left and right duct plates 51 (right duct plate not shown) are attached to the left and right side faces 3B (right side face not shown) of the inner box 3 at intervals, and these and the left and right side faces 3
Left and right ducts (not shown) are formed between B, and the upper ends of these left and right ducts communicate with the upper duct 40 through through holes formed on the left and right of the upper duct plate 102. A plurality of through holes 57 ... Are formed in the left and right duct plates 51, and
The front surfaces of the upper duct plate 102 and the left and right duct plates 51 are closed. Further, struts 58, 58 are attached to the upper and lower sides of the left and right duct plates 51, respectively. A plurality of rails 59 extending forward and backward are removably attached to the columns 58, and a tray (not shown) is placed and installed between the left and right rails 59 59.

With the above construction, when the blower 16 is operated, the warm air heated by the heater 14 is heated by the upper duct 40.
Discharge to the left inside. The warm air discharged to the upper duct 40 is humidified by the humidifying device 41, while the left duct plate 51
Flows into the left duct between the inner box 3 and the inner box 3, descends, and the through hole 57.
-Is discharged from the storage chamber 8. The warm air discharged into the storage chamber 8 traverses the inside from the left to the right, is sucked into the right duct from the through hole 57 formed in the right duct plate, and rises.
Then, it is circulated so as to be sucked into the blower 16 again through the heating heater 14.

The heating heater 14 and the humidifying heater 42 of the humidifying device 41 are controlled by a control box 27 based on a sensor (not shown) for detecting the temperature and humidity in the storage chamber 8.
The energization is controlled by a control device (not shown) inside, and the inside of the storage chamber 8 is controlled to an environment of, for example, temperature + 70 ° C and humidity 90%.

[0010]

The dishes in the storage room 8 are stored on the tray and kept warm until they are served. When the door 11 is opened, low-temperature (normal temperature) outside air flows into the storage chamber 8 as shown by the broken line arrow in FIG. 7, and instead warm air in the storage chamber 8 opens as shown by the solid line arrow 8 in the figure.
It flows out from the upper part of A.

As a result, the temperature and humidity inside the storage chamber 8 are significantly lowered, making it extremely difficult to establish a constant temperature and humidity environment inside the storage chamber 8.

The present invention has been made to solve the above-mentioned conventional technical problems, and an object of the present invention is to provide a warming cabinet capable of suppressing temperature fluctuations in the storage chamber when the door is opened. To do.

[0013]

According to the present invention, there is provided a heat-storage cabinet in which a storage chamber which is open to the front is formed in a heat-insulating box, and the front opening of the storage chamber is closed by a door so that the storage box can be opened and closed. The air heated by the heating device provided inside the body is circulated in the storage chamber by the blower, and the suction port is formed corresponding to the upper opening of the storage chamber, and the air discharged into the storage chamber is sucked from the suction port. It is configured as follows.

[0014]

According to the warm storage of the present invention, since the suction port is formed corresponding to the upper opening of the storage chamber, the warm air in the storage chamber which is about to flow out from the upper opening when the door is opened is used as the suction port. Can be sucked from. Therefore, it is possible to reduce the outflow of warm air in the storage chamber when the door is opened, effectively suppress the temperature variation in the storage chamber, and form a stable constant temperature environment.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view of a heat storage 1 of the present invention, and FIG. 2 is a heat storage 1
FIG. 3 is a vertical sectional view of the heating cabinet 1, FIG. 4 is a vertical sectional view of the heating cabinet 1 upper part, and FIG. 5 is another horizontal sectional view of the heating cabinet 1 upper part. In each figure, the same reference numerals as those in FIG. 7 are the same.

In the refrigerator 1 according to the present invention, an inner box 3 made of a steel plate, which is also opened forward, is incorporated in an outer box 2 made of a steel plate opened forward, and is connected by a breaker (not shown). After that, it comprises a heat insulating box 7 formed by filling foam insulating material 6 between both boxes 2 and 3 and a breaker, and a front opening 8A of a storage chamber 8 formed in the inner box 3 is left and right at the center. It is divided into upper and lower parts by a partition 9 that is passed over to. Then, the upper and lower openings 8A are provided on the doors 11 and 11 (the upper door 11 in FIG. 2).
Has been removed), and it is openably and closably closed.

A rectangular through hole 12 is formed on the right side of the rear portion of the top wall 7A of the heat insulating box 7, and a heat insulating unit box 13 is formed so as to close the through hole 12 from above and open downward. It is attached and constitutes a part of the heat insulating box 7. A heating heater 14 as a heating device is installed in the unit box 13. A blower 16 made of a sirocco fan is attached to the left side of the unit box 13, a shaft 16S thereof penetrates a left wall of the unit box 13, and a motor 16M thereof is fixed to a left side surface of the unit box 13. The unit box 13 is partitioned by a fan casing 21 into a suction side where the heating heater 14 is present and a discharge side where the blower 16 is present.

On the top wall 7A of the heat insulating box 7, a water injection valve 2 for supplying water to a humidifying tray 22 which will be described later is arranged side by side with the unit box 13.
3 is attached, and its connection port 24 is connected to a water pipe (not shown). A control panel 26 is attached to the front end of the ceiling wall 7A, and a control box 27 is arranged on the rear side thereof.

A substantially gate-shaped upper duct plate 28 is attached to the upper part of the heat insulating box 7, and its upper surface 28A and left and right side surfaces 28B and 28C are the top surface 3A and left and right side surfaces 3B and 3C of the inner box 3. There is an interval. Then, between the upper surface 28A and the top surface 3A, and between the left and right side surfaces 28B and 28C and the left and right side surfaces 3.
An upper duct 40 communicating with the unit box 13 is formed between B and 3C.

A perspective view of the upper duct plate 28 is shown in FIG. An upper surface 28A and left and right side surfaces 28B of the upper duct plate 28,
Outer flanges 29A, 29B, 29C, 29D and 29 are provided on the front end of 28C and the lower ends of the left and right side surfaces 28B, 28C.
E is bent, and a plurality of through holes 31 ... Are formed in the flanges 29D and 29E. And each flange 29A, 29B, 29C, 29D and 2
9E are the top surface 3A, the left and right side surfaces 3B, 3C of the inner box 3, respectively.
Is in contact with

Further, on the upper surface 28A of the upper duct plate 28, the left side surface 28A extends from the rear to the front and is inclined to the right.
An upper partition 32 for lowering the front portion of B to the flange 29D is attached. This upper partition 32 is the top surface 3A of the inner box 3.
And the left and right side surfaces 3B and 3C, and the rear portion thereof corresponds to the lower end of the fan casing 21. As a result, the inside of the upper duct 40 has a suction side 40S where the heating heater 14 is present, and a discharge side 40S where the blower 16 is present.
Partitioned into D. A plurality of suction ports 33, ... Are provided in the front portion of the upper surface 28A, the left and right side surfaces 28B, 28C and the flange 29A located on the suction side 40S.

The left-side corner of the upper duct plate 28 is recessed (not shown in FIG. 6), and the humidifying tray 22 and the humidifying heater 42 constituting the humidifying device 41 are arranged therein. In addition, 43 is a drainage pipe for draining overflow water from the humidifying tray 22, which is pulled down to the outside by descending the left side of the storage chamber 8.

On the other hand, left and right duct plates 51 and 52 are attached to the left and right side faces 3B and 3C of the inner box 3 with a space therebetween.
54 are formed, and the upper ends of the left and right ducts 53, 54 communicate with the discharge side 40D and the suction side 40S of the upper duct 40 by the through holes 31 formed in the flanges 29D, 29E of the upper duct plate 28, respectively.

A plurality of through holes 57 are formed in the left and right duct plates 51, and the left and right duct plates 51, 52 are formed.
The front surface of is closed. Then, the left and right duct plates 51,
Pillars 58, 58 are attached to the upper and lower sides of 52, respectively, and rails 59 ,. The tray 61 is placed and installed.

Note that tray stoppers 62, 62, which are hits when the tray 61 is inserted, are mounted on the back surface of the storage chamber 8 up and down. Further, a transparent glass 63 is fitted in the doors 11 and 11, and a heater 64 for preventing fogging is attached to the transparent glass 63. Further, a gasket 65 is attached to the peripheral edge of the inner surface of the door 11, and a handle 66 is attached to the front surface on the non-pivotal side.

With the above construction, when the blower 16 is operated, the warm air heated by the heating heater 14 is sucked through the fan casing 21 and the upper partition 32 in the upper duct 40.
The ink is discharged toward the discharge side 40D on the left side of the arrow as indicated by the arrow in each figure. The warm air discharged to the discharge side 40D of the upper duct 40 travels along the upper surface 28A of the upper duct plate 28 and drops outside the left side surface 28B while being humidified by the humidifying device 41, and the through hole 31 of the flange 29D. Through the left duct plate 51
Flows into the left duct 53 between the inner box 3 and the inner box 3.

The warm air that descends in the left duct 53 is sequentially discharged into the storage chamber 8 through the through holes 57.
Most of the warm air discharged into the storage chamber 8 traverses the inside from left to right and is sucked into the right duct 54 from the through holes 57 formed in the right duct plate 52 and rises. Then, through the through hole 31 of the flange 29E of the upper duct plate 28, the upper duct 40
Flows into the suction side 40S. In addition, the warm air in the upper portion of the storage chamber 8 has a suction port 33, which is formed corresponding to the upper portion of the opening 8A.
-Is sucked from the suction side 40S. Then, the return warm air is circulated so as to be sucked into the blower 16 again via the heating heater 14.

The warming heater 14 and the humidifying heater 42 of the humidifying device 41 are based on a sensor (not shown) for detecting the temperature and humidity in the storage chamber 8, and the control box 27.
Energization is controlled by a control device (not shown). As a result, the temperature inside the storage chamber 8 is, for example, + 70 ° C. and humidity 90.
It is controlled in a constant temperature and humidity environment. As shown in FIG. 1, dishes such as cooked foods are stored and placed on the tray 61 in the storage room 8 concerned.
It is kept warm until it is provided.

In this state, when the upper door 11 is opened for taking in and out of food, low temperature (normal temperature) outside air flows into the storage chamber 8 as shown by a broken line arrow in FIG. As shown by the arrow, the warm air in the storage chamber 8 tries to flow out from the upper portion of the opening 8A. However, in the present invention, the opening 8A
Since a plurality of suction ports 33, ... Are formed corresponding to the upper part of the, the warm air that is about to flow out is pulled back to the suction ports 33, ... by the suction force of the blower 16, and most of it is sucked. Become.

Therefore, according to the present invention, the outflow of warm air in the storage chamber 8 when the door 11 is opened is reduced, so that the temperature fluctuations in the storage chamber 8 are effectively suppressed, and a stable constant temperature and constant humidity environment is provided. Will be able to be formed.

[0031]

As described above in detail, according to the present invention, since the suction port is formed corresponding to the upper opening of the storage chamber, the warm air in the storage chamber which is about to flow out from the upper opening when the door is opened. It can be sucked from this suction port. Therefore, it is possible to reduce the outflow of warm air in the storage chamber when the door is opened, effectively suppress the temperature variation in the storage chamber, and form a stable constant temperature environment.

[Brief description of drawings]

FIG. 1 is a front view of a heating cabinet according to the present invention.

FIG. 2 is a vertical sectional side view of the heating cabinet of the present invention.

FIG. 3 is a vertical cross-sectional front view of the heating cabinet of the present invention.

FIG. 4 is a plan sectional view of the upper part of the heating cabinet of the present invention.

FIG. 5 is another plan sectional view of the upper part of the heating cabinet of the present invention.

FIG. 6 is a perspective view of an upper duct plate.

FIG. 7 is a vertical sectional side view of a conventional heating cabinet.

[Explanation of symbols]

 1 Heat Storage 7 Insulation Box 8 Storage Room 14 Heating Heater (Heating Device) 16 Blower 28 Upper Duct Plate 32 Upper Partition 33 Suction Port

Claims (1)

[Claims] 1. A storage chamber that is open to the front is formed in the heat insulating box, and a front opening of the storage chamber is closed by a door so that the air heated by a heating device provided in the heat insulating box is provided. In a warm storage circulated in the storage chamber by a blower, a suction port is formed corresponding to an upper opening of the storage chamber, and air discharged into the storage chamber is sucked from the suction port. Hot storage.