JPH0413075A - Cooling chamber device - Google Patents

Abstract

PURPOSE:To eliminate uncomfortable feeling as well as the intake of discharged air and permit the efficient cooling of a condenser and a compressor by one set of ventilating fan by a method wherein the ventilating fan, ventilating air through air flow passages, is provided at the meeting part of first and second air flow passages while the condenser is provided in one of the first and second air flow passages and the compressor is provided in the other part of the same. CONSTITUTION:When a ventilating fan 8 is operated, fresh atmosphere is taken from the fore part of a device into a machine room 2 through an air intake port 3, then, the atmosphere is branched into the first air flow passage 7a and a second air flow passage 7b. Then, the atmosphere, flowing through one of the branched air flow passages, cools a condenser 9 and the atmosphere, flowing through the other air flow passage, cools a compressor 10 while air, finishing said coolings, is discharged out of an air discharging port 4 to the rear side of the device. According to this method, uncomfortable feeling will never be provided by the discharged air and the machine room will never take discharged air again thereinto while the condenser and the compressor can be cooled efficiently by one set of the ventilating fan.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a refrigerator apparatus in which a condenser and a compressor installed in a machine room are cooled by forced ventilation.

(Prior art) In a refrigerator (corresponding to a refrigerator device), a machine room is formed in the lower part of a storage compartment a that stores food, as shown in Figs. In addition, there are provided equipment such as a condenser c1 and a closed type compressor d, which constitute a refrigeration cycle together with an evaporator (not shown) provided in the housing a.

By the way, in order to efficiently operate the refrigeration cycle of a refrigerator, it is necessary to improve the heat exchange performance of the condenser C and further protect the compressor d from the influence of heat. Therefore, in refrigerators, the condenser C1 compressor d is cooled by forced ventilation.

Conventionally, in such a cooling structure, as shown in Fig. 4, an air intake port e and an air discharge port f are provided on the left and right sides adjacent to each other on the wall of the front side of the machine room (the front side of the housing). ,
A substantially T-shaped partition g is provided in the center of this machine room to form a substantially U-shaped air flow path that communicates the air intake port e and the air outlet f within the machine room. . Then, a blower fan 1 is installed in a part of the air flow path, that is, in the flow path on the rear side.
1. A structure is used in which the condenser C1 and the compressor d are installed in this order. In addition, j is a precooler installed between the condenser C and the compressor d, and k is an evaporation plate installed in the flow path portion on the air outlet side.

By activating the blower fan i, outside air is taken into the machine room from the front of the refrigerator. While this outside air flows through the air flow path, it cools the condenser C1 compressor d, and is then discharged from the air outlet f to the front of the refrigerator.

(The problem WJ that the invention seeks to solve) However, in such a cooling structure, fresh outside air is first introduced to the condenser C, so although the condenser C can certainly achieve high heat exchange performance, the compressor d The problem is that the cooling efficiency is not good because the air is cooled by the air whose temperature has risen considerably after heat exchange in the condenser C. Moreover, since the hot air after cooling is blown out from the front of the refrigerator, it causes discomfort to people who are near the refrigerator. Moreover, there is also the disadvantage that the blown hot air is sucked in again from the air intake port e.

Therefore, we used two blower fans, condenser C and compressor d.
It is conceivable to cool the air separately using two systems: intake at the front and outlet at the rear.

However, this method has the drawbacks of high cost and high power consumption, and is not suitable for the actual situation.

This invention was made with attention to these circumstances,
The purpose is to provide a refrigerator device that can efficiently cool both the condenser and compressor with fresh outside air using a single blower fan without causing discomfort or drawing in exhaust air. be.

[Structure of the invention] (Means for solving the problem) In order to achieve the above object, the refrigerator device of the present invention has the following features:
An air intake port is provided on the front side of the machine room, and an air discharge port is provided on the rear side of the machine room, and the inlet side collects and communicates with the air intake port in the machine room, and the outlet side collects with the air discharge port in the machine room. A first air flow path and a second air flow path are formed in communication with each other, and a blower fan for circulating air through the air flow path is provided at a gathering portion of the first and second air flow paths. A condenser is provided in one of the first and second air flow paths, and a compressor is provided in the other.

(Function) According to the refrigerator device of the present invention, when the blower fan operates, fresh outside air is taken into the machine room from the front of the device through the air intake port. Then, this outside air is branched into a first air flow path and a second air flow path. and,
The condenser is cooled by the outside air flowing through one of the branched air flow paths, and the compressor is cooled by the outside air flowing through the other air flow path.

As a result, both the condenser and the compressor are cooled with fresh outside air.

After cooling the condenser and compressor, the air is discharged from the air outlet to the rear of the device. This prevents the exhaust air from causing discomfort and from being sucked into the machine room again.

This means that both the condenser and the compressor can be efficiently cooled with one blower fan provided at the gathering portion of the first and second air flow paths without any problems caused by discharged air.

(Example) The present invention will be described below based on an example shown in FIG. FIG. 1 shows the lower side of a refrigerator to which the present invention is applied, such as a refrigerator, where 1 is a storage chamber for storing food and the like, and 2 is a machine room provided at the bottom of the storage chamber 1. Machine room 2
consists of a chamber vertically partitioned by a partition wall 1b. Further, the shape of the machine room 2 is, for example, a substantially flat rectangular shape in which the rear portion, which is the rear side of the refrigerator, is higher than the other portions across the entire width direction. This machine room 2 houses refrigeration cycle equipment.

Now, if we explain the structure around the two main parts of the machine room,
Reference numeral 3 denotes an air intake port provided on the peripheral wall on the front side of the machine room 2, which is the front part of the refrigerator, and numeral 4 represents an air outlet provided on the peripheral wall on the rear side of the machine room 2, which is the rear part of the refrigerator. The air intake port 3 is provided throughout the peripheral wall on the front side, and a filter 5 is attached to the opening. Moreover, the air outlet 4 is comprised of a plurality of openings 4a to 4e arranged along the width direction and provided on the upper right side of the peripheral wall on the rear side.

A partition wall 6 is installed at the center of the width of the protruding space 2a at the rear of the machine room 2. For example, the partition wall 6 connects the lower side of the protruding space 2a to a part of the air outlet 4, specifically, the opening 4b.
a first standing wall 6a that partitions left and right with the border between and the opening 4C, and a second standing wall 6b that extends to the left from the front end of this standing wall 6a and partitions back and forth. It is composed of: Through this partition wall 6, inside the machine room 2,
Two air flow paths 7a whose inlet side gathers and communicates with the air intake port 3 via the front side space of the machine room 2, and whose outlet side gathers and communicates with the air exhaust port 4 through the protruding space 2a. , 7b.

In addition, a motor-driven cross-flow fan 8 (a motor is directly connected to the cylindrical cross-flow blade portion 8a) is provided on the upper side of the protruding space 2a facing the air outlet 4, which is the gathering part of each air flow path 7a, 7b. (equivalent to a blower fan) is provided so that the outside air can be circulated through each air flow path 7a, 7b using one fan.

That is, the right side of the crossflow blade part 8a of the crossflow fan 8 faces the upper part of the right side space partitioned by the partition wall 6, and the left side similarly faces the upper part of the left side space. Outside air can be introduced into each air flow path 7a, 7b using each part.

And the standing wall part 5a which comprises the air flow path 7a.

A condenser 9 is installed in the right side portion of the protruding space 2a surrounded by the right wall of the protruding space 2a. In addition, a compressor 10 is installed in the left side of the protruding space 2a, which is surrounded by the standing wall part 6a on the opposite side constituting the air flow path 7b, and the left side wall of the protruding space 2a. 9. Condenser with outside air. The compressor 10 can be cooled. The condenser 9 and compressor 10 constitute a refrigeration cycle together with a pressure reducing device and an evaporator (both not shown) provided in the storage chamber 1, and the operation of the compressor 10 causes the storage chamber 1 to
It is designed to be able to cool.

Further, an evaporation tray 11 is installed around the compressor 10 to receive drain (defrosting water) from the evaporator. Specifically, the evaporating dish 11 has an L-shape and is disposed on the rear side and right side of the compressor 10. Inside the elongated container portion 11a at the rear of the evaporating dish 11, a plurality of evaporating fins 12 are vertically arranged above the compressor 10 along the longitudinal direction of the compressor 10. Each of the evaporation fins 12 has a fin portion at the top and has a capillary passage (not shown) communicating with the container portion 11a inside, and drains the drain water collected in the evaporation dish 11. Not only the air flowing above the evaporating dish 11, but also the air is sucked up by the capillary phenomenon into the fin part, and the fin part with a large heat radiation area is used as a heat exchange part.
The air flowing above the compressor 10 and the heat of the compressor 10 are used to evaporate.

Therefore, the refrigerator configured in this way has a compressor 10.
The cross-flow fan 8 operates according to the operation.

Then, fresh outside air is taken into the machine room 2 from the air intake port 3 at the front of the refrigerator. Next, the outside air is passed through an air flow passage 7g divided into left and right by a partition wall 6.

I am guided by 7b. Then, this outside air is
When passing through b, the condenser 9 installed in the airflow passage 7b is cooled (heat exchanged).

Further, when the outside air passes through the air flow passage 7a, the compressor 10 installed in the air flow passage 7a is cooled. Then, the evaporator fins 12 are heated by the air whose temperature has increased, and the drain water (defrosting water) sucked up from the evaporating dish 11 is evaporated by capillary action.

In other words, the drain water in the evaporating dish 11 is effectively evaporated by the combination of the heat from the compressor 10 and the active ventilation.

The air that has passed through these two air flow paths 7a and 7b passes through each part of the crossflow blade part 8a of the crossflow fan 8 and collects in one place, and then is discharged from the air outlet 4 to the rear side of the refrigerator. go.

Therefore, both the condenser 9 and the compressor 10 can be efficiently cooled with fresh outside air. Moreover,
Since such cooling can be achieved with one cross-flow fan 8 provided at the gathering portion of the air flow paths 7a and 7b, it is also advantageous in terms of cost.

Moreover, since the outside air is sucked in from the front of the refrigerator and the cooled air is exhausted from the rear of the refrigerator, the exhausted air does not cause discomfort and the exhausted air is not sucked into the machine room 2 again.

In addition, the structure in which the drain water in the evaporating dish 11 is evaporated as in the above embodiment can increase the evaporation capacity because the heat and ventilation of the compressor 10 promote the evaporation action. There is an advantage that the plate 11 can be made smaller.

Further, the present invention is not limited to the above-mentioned embodiment, but may be implemented in other embodiments as shown in FIG. 2, for example.

That is, in FIG. 2, the evaporating dish 11 is provided over the entire flat part 2b on the front side of the machine room 2, and the air flowing through the flat part 2a,
In other words, the drain water accumulated in the evaporating dish 11 is evaporated by the air flowing through the upstream collecting portion of the air channels 7a and 7b.In addition, in the above embodiment, the L-shaped partition wall 6 is used. Although the two air passages 7a and 7b are formed between the front and rear of the machine room 2, the present invention is not limited to this, and the air passages for the condenser and compressor may be formed using other structures. . Further, although a cross-flow fan is used, other types of blower fans may be provided at the gathering portion of the air flow path to circulate the air. Of course, it goes without saying that the same effect can be obtained even if the blower fan is provided not in the collecting part on the air exhaust side but in the collecting part on the air intake side.

Furthermore, in the above embodiment, an example was given in which air intake ports and air exhaust ports were provided on the front and rear walls of the machine room, but the invention is not limited to this. An air intake port and an air discharge port may be provided to allow outside air to circulate.In short, it is sufficient to provide an air intake port on the front side of the 81M room and an air discharge port on the rear side of the machine room. It is.

In addition, although this invention was applied to a refrigerator, it is not limited to this.
The present invention may be applied to a refrigerator device using a refrigeration cycle such as a refrigerator-freezer or a freezer.

[Effects of the Invention] As explained above, according to the present invention, both the condenser and the compressor can be efficiently cooled with fresh outside air using one blower fan without discomfort or intake of exhaust air. can.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view showing a refrigerator according to an embodiment of the present invention, Fig. 2 is a partially cutaway perspective view showing a refrigerator according to another embodiment of the invention, and Fig. 3 is an external appearance of the refrigerator. Figure 4 is a perspective view showing the structure of the machine room of a conventional refrigerator.
In the figure, it is a plane sectional view taken along line A-A. DESCRIPTION OF SYMBOLS 1... Accommodation room, 2... Machine room, 3... Air intake port, 4... Air exhaust port, 6... Partition wall, 7a, 7b...
・Air flow path, 8...Cross flow fan (blow fan), 9・
... Condenser, 10... Compressor. Applicant's representative Patent attorney Takehiko Suzue Storage warehouse 2--Korin room 3--Sorahanmata entrance v! ll11IP exit 6 Bulkhead compartment diagram

Claims (1)

[Claims] A machine room is provided at the lower part of the storage warehouse for storing the stored articles, an air intake port is provided at the front side of the machine room, an air exhaust port is provided at the rear side of the machine room, and the entrance side of the machine room is A first air flow path and a second air flow path are respectively formed, the outlet side of which collects and communicates with the air intake port, and whose outlet side collects and communicates with the air outlet. A blower fan for circulating air through the air flow path is provided in the gathering part, a condenser constituting a refrigeration cycle for cooling the storage is provided in one of the first and second air flow paths, and the same is provided in the other. A refrigerator device characterized by being provided with a compressor constituting a refrigeration cycle.