JPH0343538Y2 - - Google Patents

Description

[Detailed description of the invention] This invention forms the air flow passage into a U-shape, prevents the natural heat generation of the coil, greatly reduces energy consumption, and creates a so-called energy-saving fan coil unit that is noiseless. It is related to.

As shown in FIG. 1, a conventional fan coil unit has a suction port 4 opened at the lower bottom of a machine casing 1, a blower 2 is installed near the suction port 4 through a filter 5, and a coil is placed directly above the blower 2. Since each mechanism is arranged in a substantially vertical line in the air flow passage 6, it is difficult to clean and replace the filter 5, etc., and the position of the suction port 4 is different from that of the conventional one. Since most of the machine is installed at the bottom of the machine, all the dirt, foreign matter, dust, etc. on the floor flow into the machine at the same time as the air is inhaled, and an electrostatic precipitator or autoroll filter is also installed. However, it is not easy to reliably and completely attach these members to the suction port 4 at the lower position, and the operation is extremely difficult. Furthermore, it is difficult to remove dust etc. that adheres to the coil 3 surface. There were drawbacks such as the accompanying

However, since the air flow passage 6 is formed vertically as shown in the figure, the air flows up and down, and the coil 3 naturally generates heat when the blower is stopped, which unnecessarily increases energy consumption and causes serious problems. It is uneconomical.

Recently, so-called three-way valve devices have been developed that automatically divert water to other sources instead of flowing to the coil when the fan is stopped, in order to save energy due to such natural heat generation. These have the disadvantage that the piping structure is complicated and very expensive.

The present invention focuses on the above-mentioned drawbacks, and aims to provide a fan coil unit that is ideal for the energy saving era, in which the natural heat generation is naturally prevented by forming the air flow passage 6 in a U-shape. That is.

Hereinafter, the embodiment of the present invention will be explained in detail with reference to FIG. 2, which illustrates an embodiment of the present invention.
A blower 2 is installed at the bottom of each of the airflow passages 8 and 9, forming a U-shaped airflow passageway, and a coil 3 and a drain pan 13 are placed inside the airflow passageway 9.

In addition, air outlets 10 and suction ports 11 are provided at appropriate locations such as the front and rear surfaces of the upper part of the machine casing 1 in each of the air flow passages 8 and 9, so that the air intake direction is the back side or the top side and the blowing direction is the front side. Alternatively, it can be selected in any direction such as the top surface.

In addition, without providing the air outlet 10 and the suction port 11 in the machine casing 1, the air outlet 1 is installed as shown by the dotted line in the figure.
It is also possible to attach a chamber 12, which is formed by preliminarily opening 0 and suction ports 11 on the front and rear surfaces and the top surface, to the upper part of the machine casing 1 so as to be able to freely change the position of the air blowing direction.

Furthermore, electric dust collector, auto roll filter 13
By disposing various mechanisms such as these in the chamber 12, the installation work is simple and operation is easy, and various works such as maintenance inside the machine can be carried out very easily and reliably. It goes without saying that it is possible.

Depending on the location, etc., it may be possible to form the above structure with the front and back sides reversed as shown in Figure 3 and use it, or use the above structure to form a horizontal structure and use it for ceiling hanging. It is possible to do so.

As described above, the fan coil unit according to the present invention has the blower 2 installed at the inner bottom of the machine casing 1, and the blower 2 is divided into front and back parts by the partition plate 7 on the top of the blower 2, thereby creating a U-shaped air circulation system. In addition to forming the air flow passages 8 and 9, a coil 3 is disposed in the air flow on one side of the air flow passages 8 and 9, and the front and rear air flow passages have an outlet 10 and an inlet 11 respectively. The airflow from the suction port 11 flows through one airflow passage 9, is appropriately heat exchanged by the coil 3, and is detoured to the front airflow passage 8 by the action of the blower 2, and then flows through the airflow outlet. 10, it is possible to supply an appropriate cooling and heating airflow into the room, but especially in the case of the present invention, the airflow passage is formed into the U-shaped airflow passages 8 and 9 divided into the front and back as described above. Therefore, when the blower 2 is stopped, no air circulates, and the natural heat generation by the coil 3 is completely blocked, which not only greatly reduces energy consumption, but also has a noise reduction effect. It has both benefits and great effects.

Furthermore, since the present invention has the above-mentioned structure, various operations such as maintenance are extremely easy, and cleaning of dust and foreign matter on the coil surface is easy, and since the suction port is located at the top of the machine, it does not need to be placed on the floor as in the conventional case. There is no need to worry about inhaling dust from the surface, and the filter is easy to attach and detach.Since the blower is installed at the bottom of the machine, it has excellent stability and minimal vibration. It also has various advantages.

[Brief explanation of drawings]

FIG. 1 is a vertical sectional side view of a conventional fan coil unit, FIG. 2 is a vertical sectional side view of a fan coil unit according to the present invention, and FIG. 3 is a same view showing another embodiment. Explanation of symbols, 1...Machine casing, 2...Blower, 3...
...Coil, 4...Suction port, 5...Filter, 6
... Air flow path, 7 ... Partition plate, 8 ... Air flow path, 9 ... Same as above, 10 ... Air outlet, 11 ... Suction port, 12 ... Chamber, 13 ... Drain pan.

Claims (1)

[Scope of Claim for Utility Model Registration] A blower 2 is installed at the inner bottom of the machine casing 1, and the blower 2 is divided into front and back parts by a partition plate 7 on the top of the blower 2.
U-shaped air flow passages 8 and 9 are formed in the front and rear, and an air outlet 10 is provided at the front of the upper part of the front air flow passage 8, and an inlet port 1 is provided at the upper part of the rear air flow passage 9.
A fan coil unit characterized in that each opening is provided with a. A blower 2 is installed at the inner bottom of the machine casing 1, and the blower 2 is divided into front and rear parts by a partition plate 7 on the top thereof.
U-shaped air flow passages 8 and 9 are formed in the front and rear, and an inlet 11 is provided at the front of the upper part of the front air flow passage 8, and an outlet 10 is provided at the upper part of the rear air flow passage 9.
The fan coil unit according to claim 1, wherein each opening is provided with a.