JPS609664Y2 - Cooling system - Google Patents

Description

[Detailed Description of the Invention] This invention is an improvement of the structure of cooling devices such as refrigerated showcases and refrigerators, and particularly promotes heat dissipation from condensers and evaporation of defrosting water.

Conventionally, this type of cooling system dissipates heat from the condenser and refrigerant compressor of the refrigerant cycle by forced air cooling using a blower.
When drawing in outside air and discharging hot air by heat radiation to the same side of the machine room, the condenser was installed in the suction section so that the fins faced outward), so the air accelerated by the blower was transferred to the refrigerant compressor. In addition, the configuration is complicated, as the flow must be shifted approximately 90 degrees to the evaporating dish, and an induction duct is required.If the opening width of the machine room is not large, it is difficult to arrange the suction and discharge ports on the same surface. If the width is large, there are fewer problems, but if the width is narrow, air circulation is restricted and the capacity of the blower must be increased.

This is because a filter for removing dust is installed on the front of the condenser, and if the condenser is placed vertically with the fins facing the side, the amount of dust attached to the filter will be different from the opening side and the back side. However, this is because the condenser is clogged unevenly, reducing the heat dissipation effect.

This proposal was developed in view of these points, and the figure will be explained below.

Reference numeral 1 denotes a refrigerated showcase body composed of an outer wall 2, an inner wall 3, and a heat insulating material 4 filled between the two walls 2 and 3. A storage chamber 5 formed by the inner wall 3 has a front surface such as a transparent glass plate, etc. The back opening, which is a transparent window 6, is closed off with a door body 7 so as to be openable and closable, and a cooler 8 is disposed at an appropriate location.

The main body 1 has a machine chamber 9 which is open on the rear side at the bottom below the storage chamber 5, and is formed by a front wall 10, side walls 11, 11, etc., and a refrigerant cycle is installed in the machine chamber 9 together with the cooler 8. A refrigerant compressor 12 and a condenser 13 to be formed are housed and arranged,
Additionally, a blower 14 for forced air cooling of the refrigerant compressor 12, condenser 13, etc. is also provided.

The condenser 13 has its suction surface 13A disposed vertically in front and rear so as to face the side wall 11 with a gap therebetween, and its discharge surface 13
On the B side, the blower 14, the refrigerant compressor 12, the evaporator 15 for receiving and storing defrosting water from the cooler 8, etc. are arranged in sequence approximately on the same line with a space between them.

The suction surface 13A of the condenser 13 is almost entirely covered by a filter 16 which is detachable from the rear opening of the machine room 9, and the filter 16 has a rough surface 16A with a mesh having a larger mesh size on the rear opening side. and a dense surface 16B with a smaller depth on the front wall 10 side.

An evaporation pipe section 17 through which high-temperature refrigerant discharged from the refrigerant compressor 12 flows is immersed in the evaporation dish 15 .

Reference numeral 18 denotes an electrical equipment box housing arbitrary equipment such as a relay disposed in the machine room 9, and is disposed at a position upstream of the suction surface 13A of the condenser 13 with a gap therebetween.

19 is a perforated plate that covers the back opening.

Incidentally, an opening may be provided in the front wall 10 and the rear opening may be closed with a wall plate, and the same effect can be obtained as long as an opening is provided in either the front or back.

The present invention is structured as described above, and since the condenser can be placed vertically in front and behind, the blower can be placed approximately horizontally in a straight line along with the refrigerant compressor, etc., without having to install the blower behind the condenser. The front and back width can be reduced.

Air circulation becomes smoother, the heat dissipation effect is improved, and the evaporation of the water stored in the evaporating dish is promoted.

In addition, the mesh of the filter that covers the suction surface of the condenser is coarser on the opening side and denser on the back), so even if the condenser is installed vertically, the fins will be clogged with dust more on the back side and unevenly. This is less likely to happen and the heat dissipation effect can be improved.

[Brief explanation of drawings]

Figure 1 is a longitudinal sectional view of the proposed device, and Figure 2 is A-A in Figure 1.
FIG. 3 is a sectional view of the same essential part, and FIG. 4 is a schematic front view of the filter. Arrows in the figure indicate the direction of air flow. 9... Machine room, 13... Condenser, 16... Filter.

Claims (1)

[Scope of utility model registration request] A machine room is formed below the storage room with an opening on either the front or the back, and a refrigerant compressor, a condenser, and a blower forming a refrigerant cycle are spaced from each other approximately on a line in the machine room. At the same time, the condenser is located upstream of the blower, and is placed vertically so that its suction surface faces the side wall of the machine room with a gap between them, and the suction surface of the condenser is placed in front of the side wall of the machine room. A cooling device characterized by a mesh filter covering the opening side with a coarse mesh filter and the inner side with a dense mesh filter.