JPS6259365A - 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 Field of the Invention The present invention relates to a refrigerator having a freezer compartment, a refrigerating compartment, and a third compartment between the two compartments.

BACKGROUND ART A conventional example will be explained with reference to FIGS. 4 to 6. In the figure, 1 is the refrigerator body, and outer box 2. Inner box 3 and both boxes 2, 3
It is composed of a heat insulating material 4 filled in between. 6 is a first partition wall; 6 is a second partition wall located below the first partition wall 6; above the first partition wall 6 is a freezer compartment 7; temperature range (e.g. -3~
A switching chamber 9 that can switch the temperature (0° C.) is formed into sections. 1° is a cooler, and 11 is a cooler which transfers the cold air cooled by the cooler 1o to the freezer compartment 7. Refrigerator room8. A blower for forcing ventilation into the switching room 9 is housed within the first partition wall 6. Reference numeral 12 denotes a duct for guiding cold air to each of the chambers 7, 8.
A conical protrusion 14 facing 3 is formed, and a freezing chamber 7 is formed above.
There are discharge air passages 16, 17 to the refrigerating compartment 8 and switching chamber 9 below. The arrangement of the discharge air passage 17 to the switching chamber is through the partition plate 1.
8, the discharge air passage 17 to the switching chamber is disposed on the windward side with respect to the rotation direction of the ventilation fan 13, and the discharge air passage 16 to the refrigerator compartment is disposed on the leeward side, respectively. A discharge outlet 19 to the refrigerator compartment is formed at the tip of the discharge air passage 16 to the refrigerator compartment, and a discharge outlet 20 to the switching chamber is formed at the tip of the discharge air passage 17 to the switching chamber. Also, 21.22 is the husband's refrigerator room 8. At the entrance of the switching chamber 90, there is a discharge port 19 to the refrigerating chamber. This is a damper thermostat for adjusting the amount of cold air provided opposite the discharge port 20 to the switching chamber, and in particular, the damper thermostat 22 provided in the switching chamber 9 is capable of adjusting the temperature range from freezing to refrigeration. . 23.24 is my husband, the damper thermos tough) 21
．． This is a control panel that houses 22. Further, 25 is a discharge port to the freezer compartment provided in the freezer compartment T so as to communicate with the discharge air passage 16 of the duct 12 to the freezer compartment.

In this configuration, the cold air cooled by the cooler 1o collides with the conical protrusion 14 facing forward due to the rotating action of the blower fan 13 of the blower 11, and at the same time is divided into vertical directions, and the cold air flowing upward flows into the freezer compartment. Discharge air passage 16 to
It is then supplied into the freezer compartment 7 through the outlet 26 to the freezer compartment for cooling.

In addition, the cold air heading downward passes from the windward side through the discharge air passage 17 to the switching chamber, and enters the switching chamber 9 from the discharge port 20 to the switching chamber. The air is supplied into the refrigerator compartment 8 through the discharge air passage 16 to the refrigerator compartment and from the discharge port 19 to the refrigerator compartment, and is appropriately controlled by damper thermostuffs 22 and 21 to adjust the temperature to a desired temperature.

Problems to be Solved by the Invention However, with such a configuration of the duct 12,
In particular, when a freezing temperature range is desired for the switching chamber 9, a considerable amount of air volume is required compared to a case where a refrigeration or a third temperature range (for example, -3 to o Celsius) is desired. , the air volume is biased towards the discharge air passage 15 to the freezing compartment where passage resistance is low (about 80% of the total), and the air volume diverted to the discharge air passage 17 to the switching compartment is insufficient, resulting in the desired freezing temperature. is not obtained,
At the same time, the amount of air diverted to the discharge air path 16 to the refrigeration room is also insufficient, making it difficult to maintain the refrigeration temperature.

The present invention solves the above-mentioned conventional problems, and provides a duct structure that can secure the necessary air volume to the switching room and the refrigerator compartment, and in particular can ensure sufficient air volume even when the switching room is set to freezing temperature. is intended to provide.

Means for Solving the Problems In order to solve the above-mentioned problems, the duct structure of the present invention includes a discharge air passage to the switching chamber below the blower fan and a discharge air passage to the switching chamber on the windward side with respect to the rotational direction of the blower fan, and a discharge air path on the leeward side. A discharge air passage to the refrigerating room is disposed in the air outlet, and a first protrusion protrudes above the air discharge passage to the switching chamber above the horizontal center line of the blower fan, and a first protrusion protrudes above the air outlet air passage to the switching chamber above the horizontal center line of the blower fan. It is provided with a second protrusion that protrudes above the discharge air path to the refrigerator compartment.

Effect: With the above-described configuration, the present invention allows the air generated by the rotation of the blower fan to be rectified by the first protrusion provided above, thereby suppressing the amount of air that originally flows into the discharge air passage to the freezer compartment above. Thus, a sufficient amount of air is distributed to flow into the discharge air passage 5 into the switching chamber provided on the lower windward side. On the other hand, the second protrusion provided below partially obstructs the flow of air that would otherwise flow into the discharge air path to the freezer compartment located above, causing the air to flow into the discharge air path to the refrigerator compartment located on the leeward side. It is also possible to actively increase the air volume.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 3. In addition, the same reference numerals are attached to the same configuration as the conventional one, detailed explanation thereof will be omitted, and only the different parts will be described.

In the figure, reference numeral 26 is a duct made of resin or the like, and has a conical protrusion 27 facing the blower fan 13 of the blower 7 formed in the middle of the duct. A discharge air passage 29 to the refrigerator compartment and a discharge air passage 3o to the switching chamber are provided below. , a discharge air passage 30 to the switching chamber on the windward side with respect to the rotation direction of the blower fan 130, and a discharge air passage 2 to the refrigerator compartment on the leeward side.
9 are separated by partition plates 31.

32 is a first protrusion that protrudes above the horizontal centerline 33 of the blower fan 13 and above the discharge air passage 3o to the switching chamber; 34 is a first protrusion that projects above the horizontal centerline 33 of the blower fan 13; 33 and is a second protrusion that protrudes so as to cover the upper part of the discharge air passage 29 to the refrigerator compartment. Further, 36 is a discharge port to the refrigerator compartment formed at the tip of the discharge air passage 29 to the refrigerator compartment, and a damper provided at the entrance of the refrigerator compartment 80; 36 is the above-
This is a discharge port to the switching chamber formed at the tip of the discharge air passage 30 to the seventh switching chamber, and communicates with the damper thermostat 22 provided at the entrance of the switching chamber 9, facing the damper thermostat 22.

Furthermore, the discharge air passage 28 to the freezer compartment is arranged so as to communicate with a discharge port 26 to the freezer compartment provided at the entrance of the freezer compartment 7.

In such a configuration, the cold air cooled by the cooler 1o is
The rotating action of the blower fan 13 of the blower 11 collides with the conical protrusion 2T of the duct 26, and the direction is changed in the vertical direction. At this time, the cold air heading toward the discharge air passage 28 to the freezer compartment provided above is directed toward the horizontal center line 3 of the blower fan 13.
3, a part of the air does not flow into the discharge air passage 28 to the freezer compartment due to the first protrusion 32 that protrudes upward, and the air is discharged along the wall surface of the first protrusion 32 to the switching chamber. The air is taken into the 3° wind path. At the same time, on the other hand, a part of the air blower 77 is blocked by the second protrusion 34 protruding downward from the horizontal center line 33 of the blower 77 and collides with the second protrusion 34.
The air is forcibly increased into the discharge air passage 29 to the refrigerator compartment along the wall surface of the refrigerator compartment. As a result, a discharge port 36. A desired amount of cold air is supplied from the discharge port 36 to the switching chamber to the refrigerator compartment 8 and the switching chamber 9, respectively, to ensure a sufficient amount, especially when the switching chamber e is desired to be in the freezing temperature range. By setting the protrusion of the first protrusion 32 to an appropriate amount, a low freezing temperature can be obtained.

Effects of the Invention As is clear from the above explanation, according to the duct structure of the present invention, a considerable amount of cold air is delivered into the discharge air path to the switching chamber by the first protrusion provided above the horizontal center line of the blower fan. can be introduced, and even when the switching chamber is desired to have a freezing temperature, a sufficiently low freezing temperature can be provided. In addition, a second protrusion provided below the horizontal center line of the blower fan partially obstructs the flow of cold air toward the discharge air path to the freezer compartment, forcing the flow of cold air into the discharge air path to the refrigerator compartment. By drawing in a large amount of cold air, the cooling capacity of the refrigerator compartment can be ensured sufficiently, and the implementation effect is extremely large.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of essential parts of a refrigerator showing an embodiment of the present invention;
Fig. 2 is a front view of the refrigerator, Fig. 3 is a vertical cross-sectional view of the refrigerator shown in Fig. 2, Fig. 4 is a front view of a conventional refrigerator, and Fig. 6 is a longitudinal cross-section of the refrigerator shown in Fig. 4. The top view and FIG. 6 are perspective views of essential parts of the refrigerator shown in FIG. 4. 6...First partition wall, 6...Second partition wall, 7...Freezing room, 8...Refrigerating room,
9...Switching chamber, 1°...Cooler, 11
...Blower, 13...Blower fan, 2
6...Duct, 28...Discharge air path to the freezer compartment, 29...Discharge air path to the refrigerator compartment, 30.
...Discharge air path to the switching chamber, 32...1st
protrusion, 33...horizontal center line of the blower fan,
34...Second protrusion. Name of agent: Patent attorney Toshi Nakao TL or 1 person 1
3--One ventilation fan Fig. 4 Fig. 5 Fig. 6rlA

Claims (1)

[Claims] a cooler, a blower for circulating cold air cooled by the cooler, a first partition wall housing the cooler and the blower, a second partition wall disposed below the first partition wall; A freezing compartment formed above the first partition wall, a refrigerating room partitioned below the second partition wall, a refrigeration room partitioned by the first and second partition walls, and a refrigerator compartment formed above the first partition wall. A switching room capable of changing the temperature in a temperature range of 3, and a duct that guides cold air to the freezing room, the refrigerator room, and the switching room, the duct facing the blower fan of the blower and discharging it upward to the freezing room. The air path is provided with a discharge air path to the switching chamber on the windward side and a discharge air path to the refrigerator compartment on the leeward side with respect to the rotational direction of the blower fan, and further from the horizontal center line of the blower fan. a first protrusion located above and protruding above the discharge air path to the switching chamber; and a first protrusion located below the horizontal center line of the blower fan and protruding above the discharge air path to the refrigerator compartment. The refrigerator is provided with a second protruding portion.