JPS61153472A - Refrigerator - Google Patents

Abstract

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

Description

[Detailed description of the invention] Industrial applications The present invention relates to a forced draft refrigerator.

BACKGROUND ART A conventional example will be explained with reference to FIG. In the figure, reference numeral 1 denotes the refrigerator body, which is composed of an outer box 2, an inner box 3, and a heat insulating material 4 filled between the two boxes.

Reference numeral 6 denotes a first partition wall, which is divided into a freezing compartment 6 at the top and a refrigerator compartment 7 at the bottom.08 is a second partition wall, which further divides the inside of the refrigerator compartment T into upper and lower parts, and a refrigerator compartment is formed at the bottom. A third chamber 9 and a fourth chamber 1o which are cooled independently from the chamber 7 are partitioned. 11 is a refrigeration cycle compressor, 12 is a cooler, and a blower 14 for forced ventilation is provided in a cooling chamber 13 housing the cooler 12. 16 is the cooling chamber 1
A first ventilation duct 3 communicates with the refrigerating chamber 7, and a second ventilation duct 16 communicates from the cooling chamber with the third chamber 9 and the fourth chamber 1°. Reference numeral 17 denotes a first damper thermostat that controls the amount of cold air flowing into the refrigerator compartment 7, and is provided in a first temperature control device 19 that integrally forms a cold air discharge passage 18 to the refrigerator compartment 7. located opposite the opening of the ventilation duct. Also, 2o is the third chamber 9
, a second damper thermostat that controls the amount of cold air to the fourth chamber 10, and a second temperature control device that integrally forms a cold air discharge passage 21 to the third chamber 9 and the fourth chamber 1°. 2
2, and is arranged so as to face the opening of the second ventilation duct.

Furthermore, 20a is a temperature sensing part of the second damper thermostat 20, and a third chamber 9 is provided in a part of the second partition wall 8.
It is arranged so that it faces the Reference numeral 23 denotes a cold air suction passage for the freezer compartment, which communicates with the cooler 12 through a cold air suction port 24 provided in the freezer compartment 6. Reference numeral 26 denotes a cold air suction passage for the refrigerator compartment, which communicates with the cooler 12 through a cold air suction port 26 provided in the refrigerator compartment 7. Further, 27 is a cold air suction port for the third chamber 9 and the fourth chamber 1o;
and the refrigerator compartment 7 are communicated with each other. Reference numeral 28 denotes a thermostat provided in the freezer compartment θ, which detects the temperature inside the freezer compartment 6 and controls the operation of the compressor 11 and the blower 14. Incidentally, in recent years, the third chamber 9 has been kept at a normal refrigeration temperature (3 to 10
℃) to a lower temperature range (e.g. -3 to 0℃),
In particular, fresh foods such as fish and meat that require low-temperature storage to maintain their freshness are often stored in special low-temperature chambers. In order to prevent heat intrusion from the third chamber 10 and maintain a stable low temperature, the second partition wall 8 forming the ceiling of the third chamber 9 has a heat insulating material 29 interposed therein. The bottom and outer peripheral surface of the chamber 9 itself are also provided with a heat insulating material 3o inside.
is interposed. On the other hand, the fourth chamber 10 is generally constructed in a substantially airtight manner and is mainly used as a vegetable compartment for storing vegetables. After being circulated into the freezer compartment θ to cool the freezer compartment 6, it is returned into the cooling compartment 13 from the cold air intake port 24 through the freezer compartment cold air intake passage 23. At the same time, the air is circulated through the first ventilation duct 15 to the refrigerator compartment 7, and after being controlled to an appropriate amount by the first damper thermostat 17, it is supplied to the refrigerator compartment 7 through the cold air discharge passage 18 to exert a cooling effect. The cold air is then returned to the cooling chamber 13 through the cold air suction port 26, the cold air suction passage 26, and further circulated through the second ventilation duct 16 to the third chamber 9 and the fourth chamber 1o. is,
After being appropriately controlled by the second damper thermostat 2o, the cold air is first supplied into the third chamber 9 through the cold air discharge passage 21, and then a portion of the cold air is distributed and supplied to the fourth chamber 10. Both chambers 9 and 1 are cooled.
The air that has been cooled is merged through the cold air suction port 27, is sucked into the refrigerator compartment T, passes through the refrigerator compartment 7, and enters the cold air suction port 26.
The air that has further cooled the refrigerator compartment 7 is returned to the cooling compartment 13 via the refrigerator compartment cold air suction passage 25. Here, regarding the temperature control of the freezing compartment 6, the compressor 11,
The blower 14 is operated and stopped to maintain a desired temperature, and the temperature of the refrigerator compartment 7 is controlled by controlling the temperature of a temperature sensing part (not shown) of a first damper thermostat 17 provided in a part of the refrigerator compartment 7. The amount of cold air inflow is adjusted according to the detection, and the temperature of the refrigerator compartment 7 is maintained at a desired temperature. The inflow amount of cold air is adjusted according to the temperature detection of the temperature sensing part 20a of the damper thermostat 20 of the damper thermostat 20 of the damper thermostat 20, and
are maintained at a desired temperature in relation to each other.

Problems to be Solved by the Invention However, in such a configuration, the second temperature control device 22 containing the second damper thermostat 2o
is attached to the main body 1 at the back of the third chamber 9, so the third
The depth dimension of the chamber 9 was reduced, and a sufficient interior volume could not be secured, making it inconvenient to use. Also, on the manufacturer's side, after separately assembling the second temperature control device 22 into the main body 1 and performing a sealing operation with the periphery of the opening of the second ventilation duct 16, the second partition wall 8 is attached to the main body 1. In fact, when installing the temperature sensing part 20a of the second damper thermostat 20, it is necessary to install the second temperature control device 22 and the second partition wall 8 separately into the main body 1. After the temperature sensing part 20a is assembled into the temperature sensing part 20a, the work is to be extended and fixed to the second partition wall 8, resulting in extremely poor workability, and the communication pipe 20b leading to the temperature sensing part 20a is extremely long. It had the following problems. In view of the above points, an object of the present invention is to provide a temperature control structure that secures a sufficient interior volume of the third chamber, is inexpensive, and has good assembly workability.

Means for Solving the Problems In order to solve the above problems, the present invention provides a second damper thermostat that controls the amount of cold air flowing into the third chamber and the fourth chamber. It is provided together with the discharge passage.

Function: With the above-described configuration, the present invention does not separately provide a temperature control device on the back surface of the third chamber, and the depth of the chamber of ig3 is expanded and the internal volume is increased. Further, by fixing the second damper thermostat and its temperature sensing portion to the second partition wall, and then assembling and fixing the second partition wall into the main body, the entire assembly can be completed and the assembly work can be simplified.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 and 2. It should be noted that the same components as those in the prior art will be given the same reference numerals, detailed explanations thereof will be omitted, and only different parts will be described. In the figure, 31 is a second partition wall that can be detached from the refrigerator compartment 7 and is divided into upper and lower sections.At the bottom thereof, there is a third partition wall that is cooled independently of the refrigerator compartment 7 and whose outer periphery is surrounded by a heat insulating material 32a. A chamber 32 and a fourth chamber 1o are partitioned. 20 is a second damper thermostat 20a that controls the amount of cold air flowing into the third chamber 32, ti, and 4 to the chamber 1o; 33 is a second damper thermostat 20a;
A third ventilation duct 34 connects and communicates with the opening of the ventilation duct 16, and 34 is a ventilation section for discharging cold air to the third chamber 32 and the fourth chamber 10, respectively. It is installed in one piece. That is, the second partition wall 31 mainly consists of an outer shell plate 36 made of synthetic resin and a heat insulating material 36 inserted into the outer shell plate 35, and also includes the third ventilation duct 33 and the cold air discharge passage 34. It is also integrally formed with the second damper thermostat 2o and the cover plate 3 that covers it.
7, a third chamber 32 provided at the front, and a cold air suction port 38 of a fourth chamber 1o. Also, 39
is an intermediate partition plate that fixes the second partition wall 31 from the front; 40 is a seat plate that is located on the back side of the intermediate partition plate 39 and is screwed and fixed to the main body 1; It is screwed together with a hinge 41 that fixedly supports the lower end of the refrigerator compartment door 7a, with a partition plate 39 interposed in the middle.

In such a configuration, the air blower 14 is cooled by the cooler 12.
The air that has flowed into the second ventilation duct 16 reaches the second damper thermostat 34 via the third ventilation duct 33 and is controlled to an appropriate amount.
4 into the third chamber 32, and through the rear edge of the third chamber 32 into the fourth chamber 1o to perform a cooling effect.

Thereafter, the air that has cooled both chambers 32.10 joins through the cold air suction port 38, is sucked into the refrigerator compartment T, passes through the refrigerator compartment T, and is refrigerated together with the air that has cooled the refrigerator compartment 7 through the cold air suction port 26. The cold air is returned into the cooling chamber 13 via the indoor cold air suction passage 26.

Next, to explain the assembly work of this configuration step by step, first, insert and remove the heat insulating material 36 into the outer shell plate 36, and screw the second damper thermostat 20 into a predetermined position formed on the bottom surface of the outer shell plate 36. do.

At this time, the temperature sensing part 2 of the second damper thermostat 20
0a is extended to a predetermined position and simultaneously placed on a part of the bottom surface of the outer shell plate 36 in an appropriate manner.

After this, the cover plate 3T is attached from below so as to cover the second damper thermostat 2o, thereby forming a cold air discharge passage 34. The second partition wall 31 constructed in this way is inserted into the main body 1 from a predetermined opening position. Next, attach the seat plate 40 to the second
The middle partition plate 39 is screwed and fixed to the side wall of the main body 1 so as to be in contact with the front end surface of the second partition wall 31.
The hinge 41 and the seat plate 4o are arranged opposite to the front end surface of the
By screwing and fixing the middle partition plate 39 between them, the second partition wall 31 is fixed in a predetermined position of the main body 1, and the second ventilation duct 16 formed in the main body 1 and the second partition wall are fixed. A third ventilation duct 33 formed in the third damper thermostat 31 is closely connected at each opening to complete a series of ventilation passages, and the second damper thermostat 2o connects the temperature sensing part 20a to the second damper thermostat 2o. The second partition wall 31 can be arranged and fixed on the same surface of the main body 1, and the cold air discharge passage 34 can also be formed integrally with the second partition wall 31. Furthermore, the second partition wall 31, which has been constructed separately, can be installed and fixed in the main body 1. Third chamber 32, fourth chamber 1
Since all the temperature control bodies for 0 can be completed, the work for the manufacturer is greatly simplified, and the communicating pipe 20c to the temperature sensing part 20a of the second damper thermostat 2o can also be very short.

Furthermore, since the second damper thermostat 2o is arranged in the conventionally ineffective space where the cold air discharge passage 34 is located on the top surface of the third chamber 32, most of the planar space below the second partition wall is used for the third chamber. The third chamber 32 can be used as an opening space of 32, and the interior volume of the third chamber 32 is large, making it very convenient for the user.

Effects of the Invention As is clear from the above explanation, according to the present invention, the second partition wall disposed in most of the third chamber has a second partition wall that controls the amount of cold air flowing into the third chamber and the fourth chamber. Because the damper thermostat and its temperature-sensing part are provided, and the cold air discharge passage to the compartment is also integrally formed, the manufacturer only needs to assemble the completed assembly of the second partition wall into the main body. room,
The temperature control body for the fourth chamber can be configured, which greatly simplifies the work, and the communication pipe to the temperature sensing section of the second damper thermostat can also be shortened, making it possible to reduce the cost. In addition, for the user side, almost the entire area below the second partition wall can be used as a third room, increasing the internal volume, which improves usability in terms of food storage capacity, etc. Both practical effects are extremely high.

[Brief explanation of the drawing]

FIG. 1 is an assembled perspective view of the main parts of a refrigerator showing an embodiment of the present invention, FIG. 2 is a vertical cross-sectional view of the refrigerator shown in FIG. 1, and FIG. 3 is a vertical cross-sectional view of a conventional refrigerator. 0 14...Blower, 16...Second ventilation duct, 2o...Second damper thermostat, 2oa...Second damper thermostat. Warm section, 31...Second partition wall, 32...
...Third chamber, 34. River...Cold air discharge passage. Name of agent: Patent attorney Toshio Nakao and 1 other person16
...No.? tnj nine term L tact 2θ, 1. ￥2 Gushi 1-Tsu 29 To 2nd Figure I 14...Lotus bottom combing #2-Lotus 凰り) Tosamonu 2.2 To ^3i break 31... ￥2 e, 32,,, Lord of Ne 3 34, Bow cold = ap out'l

Claims (1)

[Claims] A freezer compartment divided by a first compartment wall, a freezing compartment, and a third compartment divided from the refrigerator compartment by a detachable second compartment wall,
a fourth chamber, a cooling chamber containing a refrigeration cycle cooler;
a blower that circulates air cooled by the cooler to each of the chambers; a first ventilation duct that communicates from the cooling chamber to the refrigerating chamber; and a first ventilation duct that communicates from the cooling chamber to a third chamber and a fourth chamber. 2, a first damper thermostat that is provided opposite to the opening on the refrigerator compartment side of the first ventilation duct and controls the amount of cold air flowing into the refrigerator compartment, and an interior space containing the first damper thermostat. a temperature control device integrally formed with a cold air discharge passage to the refrigerator compartment; a second damper thermostat that controls the amount of cool air to the second chamber, and the second damper thermostat and its temperature sensing section, and cold air discharge passages to the third and fourth chambers are connected to the second damper thermostat and the cold air discharge passage to the third and fourth chambers. A refrigerator installed in a compartment.