JP3133561B2 - Air-cooled condenser - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of an air-cooled condenser in a condensing unit provided in a cooling storage.

[0002]

2. Description of the Related Art As a prior art, Japanese Patent Publication No. 5-635 describes an evaporator of an internal unit constituting a refrigeration cycle.
As disclosed in Japanese Unexamined Patent Application Publication No. H11-264, there is a configuration including a plurality of fans for supplying cool air.

[0003] Similarly, in the case of an air-cooled condenser of the outside unit of a refrigerator having a large refrigerating capacity, for example, a large cooling storage, the air-cooled condenser is also increased in size and lengthened laterally. The structure has a plurality of units.

[0004]

Therefore, in the case of an air-cooled condenser having a plurality of blowers for cooling the condenser, when the fans are simultaneously rotated, wind noise is generated between the fans and causes unpleasant noise. Had become. In addition, the transmission of air was reduced due to interference between the fans, resulting in poor fan efficiency.

Further, in a horizontally long air-cooled condenser which does not require much mechanical strength like a cooling storage in which a condensing unit is mounted on a ceiling and which is large enough to arrange a plurality of condenser cooling fans in a line, The fan case also becomes long and its strength becomes small. For this reason, there is a problem that the fan case is deformed by being used as a stepping board when the warehouse is stocked or used as a stepping stone at the time of installation, which may lead to a fan lock.

The present invention has been made in view of the above problems, and provides an air-cooled condenser capable of reducing noise during operation and improving cooling efficiency, condensing capacity and mechanical strength with simple structural improvements. The purpose is to do.

[0007]

According to a first aspect of the present invention, there is provided a machine room formed in a top portion of a heat insulating box, a capacitor provided in the machine room and extending in a lateral direction, and a capacitor corresponding to the capacitor. A plurality of blowers provided as above, a fan case for fixing the blower, and a partition provided between the blowers provided in the fan case and provided to conduct heat with fins constituting the condenser. And a plate.

According to a second aspect of the present invention, the partition plate protrudes outside the fan case and extends in a direction in which air is blown out.

[0009]

According to the first aspect of the present invention, each blower rotates simultaneously, and the outside air flows from the front to the rear of the air-cooled condenser,
Refrigerant gas passing through the piping of the air-cooled condenser is condensed. Here, the wind generated by the rotation of the fans of the adjacent blowers is suppressed from interfering with each other by the partition plate arranged therebetween, so that the wind noise is reduced and noise generation can be prevented. The interference of the wind is suppressed, and the individual air paths are formed by the partition plates, so that the wind without disturbance flows to increase the fan efficiency and obtain a good condensation action. Then, the heat of the condenser is conducted to the partition plate which is in contact with the fins of the condenser, and the heat from the partition plate is accelerated by receiving the wind from the blower near the partition plate.

According to the second aspect of the present invention, the partition plate attached to the fan case protrudes to the outside of the fan case and extends in the direction in which the wind blows out, whereby the generation of wind noise is further suppressed and the fan efficiency is further improved. Increase.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a cooling storage room installed in a kitchen room of a restaurant or the like, and four open / close doors 2 for taking in and out foods and the like in the storage room.
At the top of the heat-insulating box 3 provided with is provided a machine room 5 having a front surface partitioned by a grill plate 4 or the like. FIG. 2 is a view of the machine room 5 as viewed from above. Here, an opening of an appropriate size is formed on the top surface of the heat insulating box 3, and a unit base 6 is provided so as to cover the opening of the top surface of the heat insulating box 3. A compressor 7, an air-cooled condenser 8, an air blower 9 for cooling the condenser, and the like are mounted on the unit base 6, and constitute a condensing unit 10.

The condensing unit 10 is connected to an evaporator (not shown), which is a unit inside the refrigerator, by a refrigerant pipe to form a refrigeration cycle. In the machine room 5, a control box 11 and the like are additionally provided. And in this air-cooled condenser 8, the rear side (leeward side)
Is so long that two blowers 9 are provided side by side.

FIG. 3 shows the blower 9 for cooling the condenser.
This shows a detailed configuration of an air-cooled condenser 8 having two units, and a plurality of aligned plate-like fins 13 are arranged in a meandering manner through the plate-like fins 13, and a refrigerant passes through the inside. An air-cooled condenser 8 is constituted by a pipe 14, and tube plates 12, 12 at both ends for supporting and fixing the pipe 14, and the air-cooled condenser 8 itself is formed by the tube sheet 1.
The refrigerant fixed to the unit base 6 by the compressors 2 and 12 and discharged from the compressor 7 and passing through the piping 14 is cooled by sending air to the piping 14 and the plate-like fins 13 by the blowers 9 and 9. It is a mechanism that is condensed.

The blower 9 comprises a fan 15 and a fan motor 16 for driving the fan 15 to rotate. The fan motor 16 is connected to the unit base 6 by a bracket 17.
It is fixed to. Reference numeral 18 denotes a fan case, which is disposed so as to cover the rear of the air-cooled condenser 8. The fan case 18 has holes slightly larger than the diameters of the fans 15, 15 corresponding to the respective blowers 9, ie, A blower opening (not shown) is formed. The air generated by the blowers 9 and 9 is supplied to the fan case 18.
Also, the tube sheets 12 and 12 are oriented to a certain extent so that air flows as shown by arrows.

By the way, these two blowers 9, 9
Between them, a partition plate 21 is provided so that the winds generated by the individual fans 15, 15 do not interfere with each other. The partition plate 21 is screwed at a central portion in the width direction of the fan case 18 and attached in a direction perpendicular to the fan case 18.

One end of the partition plate 21 is in contact with a plate-like fin 13 constituting the air-cooled condenser 8. Here, the partition plate 21 is formed of a metal member so that heat generated in the air-cooled condenser 8 is conducted.

By providing the partition plate 21 for separating the fan 15 from the fan 15 in this manner, the fan 15,
The wind noise between the fans 15 generated when the fan 15 rotates is reduced, and the winds generated by the fans 15 and 15 come out in a constant direction in the same direction without hitting each other, so that the fan efficiency is improved and the cooling effect is enhanced.

The heat generated in the air-cooled condenser 8 is conducted to the partition plate 21. And since the wind from the blowers 9 and 9 hits the partition plate 21 from right and left, the heat radiation from the partition plate 21 is also performed. Therefore, the heat radiation amount of the entire air-cooled condenser 8 is increased, and the condensation efficiency can be increased.

Further, one by one by this partition plate 21
An air path is formed for each of the blowers 9, and a cool air flow that does not cause turbulence can flow. Also, when a strong force is applied to the fan case 18 (for example, when a person steps on a stepping board), the fan opening of the fan case 18 is deformed and crushed and comes into contact with the fans 15 and 15 to reach the fan lock. Although there is a problem, in the present invention, since the partition plate 21 is attached at a right angle to the fan case 18, the strength against the force applied from above is increased, and it is possible to prevent the product from being damaged during installation.

The partition plate 21 is not only located in the fan case 18 for separating the fans 15 from each other, but also extends rearward so as to be parallel to the flow direction of the wind and protrude from the fan case 18. With the configuration having the extending portion 21B, wind interference behind the fans 15, 15 can be more reliably suppressed, and noise can be further reduced and fan efficiency can be improved.

[0021]

As described above, according to the present invention, in an air-cooled condenser having a plurality of cooling fans, a partition plate is provided between the fans, and the partition plate is connected to the fins of the condenser by heat conduction. By mounting the fan on the fan case in such a manner, the wind noise between the fans due to the rotation of the fans can be reduced, and the noise value of the whole product can be reduced.

Further, the partition plate creates an air passage through which individual air flows for each fan, thereby obtaining a function of rectifying the wind, thereby increasing the fan efficiency and improving the condensing ability. You can keep And since the heat of a condenser is made to conduct heat to a partition plate and the air is blown to the partition plate from right and left by a blower, the heat radiation effect of a capacitor increases and the condensation capacity can be raised.

Furthermore, by providing the partition plate in the fan case, it can function as a reinforcing material for the fan case, which was weak in strength, and can increase the strength particularly against a force from above. When storing and managing products in a warehouse, or when installing products, it is possible to prevent a person from getting on the fan case to make defective products.

If this partition plate is extended rearward in the direction of the flow of wind, and is attached to the fan case,
Wind interference behind the fan can be suppressed more effectively.

[Brief description of the drawings]

FIG. 1 is a front view of a cooling storage provided with a condensing unit in a ceiling.

FIG. 2 is a plan view of a cooling storage top provided with a condensation unit.

FIG. 3 is a plan view of the air-cooled condenser according to the present invention, which is arranged at the top of the cooling storage;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cooling storage 8 Air-cooled condenser 9 Blower 18 Fan case 21 Partition plate

Claims (2)

(57) [Claims] A machine room formed in a top portion of the heat-insulating box; a condenser provided in the machine room, extending in a lateral direction; a plurality of blowers provided corresponding to the condenser; An air cooling system comprising: a fan case for fixing a blower; a fin provided in the fan case and provided between the blowers, and a fin constituting the condenser and a partition plate provided to conduct heat. Type condenser. 2. The air-cooled condenser of a condensing unit according to claim 1, wherein the partition plate protrudes outside the fan case and extends in a direction in which air is blown out.