JPS6073276A - Refrigerator - Google Patents

Abstract

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

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a refrigerator equipped with a damper thermostat which is inclined so that a plate-shaped tamper for controlling the temperature of the refrigerator compartment opens from the cold air opening section. It is.

[Background of the invention]

Figure 1 shows a conventional refrigerator equipped with this type of damper thermostat.
[Figs. 2 and 3] To explain this, 2 is the refrigerator body, and 2 is an inner box, which is formed from a synthetic resin plate by vacuum forming or the like. 3 is an outer box, which is formed by bending a metal plate. Among these, the space of the outer box is filled with foam insulation and heat material 4 to form a heat insulating box body. 5 is in the freezer/j;
This is the part that preserves frozen foods, etc. 6 is the amount of gIi for storing general foods, vegetables, etc. (<7 and 11) in the refrigerator.

The freezer compartment 5 and the refrigerator compartment 6 are divided by a partition wall 7. Reference numeral 8 denotes a front opening 5a of the freezer compartment 5.
It is something that blocks the. Reference numeral 9 denotes a refrigerator door, which is connected to the refrigerator compartment 6.
The front opening 6a of the refrigerator is closed 21. Reference numeral 10 denotes a cooler, which is installed at the back of the freezing chamber 5.

This cooler 10 forms part of a series of l'l'I freezing cycles and serves as a source of cold air to the freezing chamber 5 and refrigerator chamber 6. 11
is a fan that forcibly circulates the 76 air cooled by the bamboo cooler 10 to the freezer compartment 5 and the refrigerator compartment 6. 11a is a drive motor for rotating this fan 11. Reference numeral 12 denotes a cold air supply passage to the refrigerator compartment 6, with a cold air discharge port] and 2b located at the center of the back of the refrigerator compartment. Reference numeral 13 denotes a damper thermostat that senses the temperature inside the refrigerator compartment with a heat-sensitive tube (described later), and adjusts the amount of cold air supplied to the refrigerator compartment 6 by opening and closing a damper. In FIG. 3, to explain the details of the damper thermostat part, 17 is a duct which communicates with the cold air discharge port 12b, and the duct opening frontage 17 is designed to discharge cold air to the front of the refrigerator compartment as shown by the arrow.
7a, and a rib 17b is provided on the outer periphery of the duct opening. Reference numeral 13a is a heat-sensitive tube that senses the temperature inside the refrigerator compartment and transmits the expansion and contraction of the bellows 13b. 13
C is the operating plate and the pressure of the bellows 13b and the operation 4f13
In balance with the force of spring 13e engaged with c, 13C'
Rotates around a fulcrum. 13d is a damper, and the rotation of the operating plate is transmitted to the shaft portion 13d' to move the damper, but when the damper 13d is in the open state, the damper 13d is installed with an inclination (dimension 8), so that the lower end of the damper is attached from the position where it makes contact. The duct opening width 17 is rotated once using the lower end as a fulcrum.
Open and close a. Therefore, the damper 13d is operated by the operating plate 13.
The degree of opening is determined by the rotational force of C, which optimizes the amount of cold air supplied and keeps the temperature inside the refrigerator compartment constant. Refrigeration room force) et al. ↑
It has been supplied to the warehouse/<1 ki is Danz<-13d
The direction of the wind is changed upward by the slope of the arrow A, and the air is guided through a passage formed by the heat insulating material 16 and discharged into the refrigerator compartment 5 and into the meat case 14. 15 (A sheet of elastic material is pasted and fixed between the heat insulating material 16 and a part of the ceiling of the refrigerator room, and the cold air converted to 6b is like 0 in l bamboo.

However, the t1 with such a structure had several shortcomings. Namely, the cold air supplied from the freezer compartment to the refrigerator compartment was forced upward by the
There was a defect that the pressure loss increased due to the direction change, and the air volume in the refrigerator compartment decreased. In addition, due to the direction of the air being discharged to the ceiling of the refrigerator room, the refrigerated fire + ff1 (refrigerated fire + ff1) is cooled, causing problems such as dew, so it is necessary to strengthen the seal by increasing the thickness of the insulation material or pasting sealant. There was a drawback that had to be taken into account.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned drawbacks, and it is an object of the present invention to provide a refrigerator that does not require a sealing material, has a thin heat insulating material, is compact, and is equipped with a damper with low ventilation resistance.

[Summary of the invention]

That is, the damper is inclined so that the air supplied and falling from the freezer compartment to the refrigerator compartment is guided downward.

[Embodiments of the invention]

An embodiment of the invention will be described with reference to FIG. still.

The same numbers as in the conventional example indicate the same thing, and the structure of the refrigerator is the same as in the conventional example (FIGS. 1 and 2), so only the detailed diagram of the damper thermostat (FIG. 4) will be explained. A duct 17 communicates with the outlet 12'b of the 11 treasure oJ, and has a duct opening 17a for discharging cold air toward the refrigerator compartment mj as shown by the arrow. Ribs 17b are provided. 13a
Detects the temperature inside the refrigerator compartment with a heat-sensitive cylinder and transmits the expansion and contraction of the bellows 13b. Reference numeral 13C denotes an operating plate, and the pressure of the bellows 13b and the spring 1 engaged with the operating plate 13C
It rotates around the fulcrum 13C' in balance with the force of 3e. 13d is a damper that rotates the shaft portion 1 by rotating the operating plate 13C.
3d' and moves the damper 1-3d, but the damper 13d is tilted in the open state (dimension to 8)
The frontage 17a is opened and closed from the position where the upper end 13 makes contact with the opening 17a while rotating with the two ends as a fulcrum.

Therefore, the opening degree is determined by θ↓ due to the rotational force of the damper 13d (or operating plate 13C), and the cold air supply fIt is maintained at an optimum level.
1. Keep the temperature inside the storage constant. 7< is supplied from the freezer compartment to the storage unit. The cold air that has fallen is guided downward by the slope of the damper 13d. Since the cold air is guided downward, the cold air does not directly hit the insulation +A'16a of the damper, so the surface condition of the insulation material is approximately 5.
degree becomes higher. Therefore, the heat insulation and the cold air are discharged into the refrigerator compartment and the meat case 14 through the passage formed by the heat insulating material 16. Further, the heat insulating material 16 is installed so as to be in contact with the ceiling portion 6b of the refrigerator compartment. Note that the discharge port of the meat case 14 changes the direction of the cold air guided downward and discharges it into the meat case (not shown). To discharge the cold air to the meat case, it is necessary to change the direction of the cold air upward, but since the volume is extremely small compared to the internal volume of the refrigerator compartment, it is only necessary to distribute a portion of the cold air discharged to the refrigerator compartment.

〔Effect of the invention〕

As explained above, the present invention makes it possible to obviate the need to seal the gap between the ceiling of the refrigerator compartment and the heat insulating material by tilting the damper installed at the cold air intake of the refrigerator compartment (with a dimension of 8). The insulation material can be designed to be thinner without any problems, resulting in excellent space saving. In addition, since the cold air is guided according to the principle of natural fall, there is little pressure loss at the damper part, and the amount of energy supplied to the refrigerator room is small, resulting in a large power saving effect.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of a conventional refrigerator, Fig. 2 is a front view of a conventional refrigerator, Fig. 3 is a side sectional view of a damper thermostat installed in a conventional refrigerator, and Fig. 4 is a main part of a refrigerator equipped with the present invention. FIG. 1... Refrigerator body, 2... Inner box, 3... Outer box, 4
...Insulation material, 5.. Freezer compartment, 5a... nif opening... Refrigerator room, 6a... rJi 7 side opening, 6b
... Ceiling t'cB, 7... Partition wall, 8... Freezer room door, 9... Refrigerator room door, 10... Cooler, 11... Fan, lla... Drive motor, 12...Cold air supply passage, 12a...Cold air inflow 1-1.12b.../? i air outlet, 13... damper thermostat, 13a
...Thermosensitive tube, 13b...Bellows, 13C...Movement plate. 130'... Operating plate fulcrum, 13d... Damper, 13
d'... Damper shaft portion, 13e... Spring, 14... Meat case, 15... Nuru phase, 1G... Insulating material, 1
7...Duct, 17a--Duct open D li'd D
, 17 b-...Duct opening in November 11th" Rep. (Pa) Agent: Patent attorney High: 411g Akira Bi゛-''1st talent? 3rd generation genius?

Claims (1)

[Claims] The space between the inner box and the outer box is filled with foam insulation material, and the insulated box body is divided into a freezer compartment and a refrigerator compartment by a partition wall, and the cold air cooled by a cooler is A refrigerator that has a duct that forcibly circulates the cold air between the freezer compartment and the refrigerator compartment, and discharges the cold air that is supplied from the freezer compartment to the refrigerator compartment and then discharges it from the back of the refrigerator compartment to the front. In a damper thermostat equipped with a full damper, the damper 10 opens from the lower end of the duct and cool air is forced downward by the slanted damper 10.
A refrigerator characterized in that it is equipped with a damper thermostat having a damper.