JPH0515925Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is connected to the main body of an air conditioner such as a spot air conditioner to filter and collect dust from the blown air (conditioned air) to blow out clean air. This invention relates to a filter unit for air conditioners.

(Prior technology) Spot air conditioners equipped with high-performance filters that can easily perform "cleaning and cooling" are used in the food processing industry, precision field, etc., and an example of this is published on August 7, 1986. , Japan Refrigeration and Air Conditioning Newspaper,
It is also disclosed in the article ``Clean spot air conditioner'' on page 14.

According to the above article, as shown in Fig. 3, the high-performance filter 19, which has a rectangular parallelepiped outer diameter inside the filter unit 2, has a suction port provided at the bottom of the back of the casing and an outlet provided at the top of the front. It is installed vertically across the air in between, and the cold air flowing in from the suction port is diffused into the chamber at the rear of the filter 19, and then passed through the filter 19 and blown out from the air outlet at the front. It is formed like this.

(Problems to be solved by the invention) By the way, in the conventional filter unit 2, since the high-performance filter 19 is placed vertically, a considerable amount of space is required before and after the filter 19 to prevent drifting, and the structure of the unit is large. Take shape.

In addition, the disadvantage is that the air outlet can only be provided in one direction horizontally at the front because there is no room for opening at the top of the front.Furthermore, the filter 19 has a removable support system that makes it easy to put in and take out the filter 19 for maintenance purposes. In this case, a support frame such as a rail needs to be large enough to cover the entire lower part of the filter, which poses various practical problems.

From this point of view, the present invention was devised to solve the problems of the conventional filters.In particular, by placing the high-performance filter tilted backwards, the unit can be made smaller (thinner). The purpose of the invention is to make it more compact and to expand the scope of use by making it possible to easily straighten the flow and to select the blowing direction.

(Means for Solving the Problems) Therefore, as is clear from the drawings showing the embodiments, the present invention is a filter unit 2 that is connected to the air conditioner main body 1 and filters the blown air. The air outlet 5 of the main body 1 is located near the back side of the main body 1.
The suction port 18 connected to the casing 1 is opened.
A front air outlet 16 and an upper air outlet 17 are opened at the upper front part and the front part of the top surface of the casing 1, respectively.
5, a high-performance filter 19 is disposed diagonally in a rearward-inclined state across between the suction port 18 and both of the blow-off ports 16 and 17, and
Alternatively, the upper outlet 17 is covered by a removable blind cover 23.

(Function) Since the high-performance filter 19 is placed diagonally, a vertical triangular prism space is formed at the rear and an inverted right triangular prism space is formed at the front, thereby providing a chamber with a small volume and rectifying effect.

Furthermore, the depth of the unit can be reduced, and it is possible to obtain a location in front of and above the filter 19 that is large enough to open the air outlet.

Furthermore, as for the support frame of the high-performance filter 19, it is sufficient that the part that comes into contact with the bottom plate corresponds to the lower rear corner, so a small one, for example, an angle member, can suffice.

(Example) Hereinafter, an example of the present invention will be described based on the accompanying drawings.

Figure 1 shows a spot type air conditioner according to an embodiment of the present invention, which consists of an air conditioner main body 1 and a filter unit 2, and the air conditioner main body 1 has a structure that can be used as a standalone unit without the filter unit 2 being assembled. The main body casing 3 has a horizontal outlet 4 having four circular holes in the upper part of the front surface (represented by the right side in FIG. The air suction ports 6 are respectively opened, and on the other hand,
In front of the top surface is a rectangular upper air outlet 5 with a blind lid.
However, circular exhaust ports 8 each having a short cylindrical peripheral wall are opened at the rear of the top surface, and cooling air intake ports 7 are opened at the rear and right side surfaces, respectively.

Inside the main body casing 3, an evaporator 11 is disposed facing the air suction port 6, a condenser 10 is disposed in an L-shape facing the cooling air suction ports 7, 7, and a compressor is provided. A blowout chamber 12 is formed by housing the machine 9 and other necessary equipment, facing the side blowout port 4 and the top blowout port 5, and positioned above the evaporator 11. It is provided at the rear of the chamber facing the blow-off side chamber 12.

On the other hand, a condenser fan 14 made of a propeller fan is disposed at the exhaust port 8.

When the air conditioner main body 1 does not require air filtration, the upper outlet 5 may be closed with a blind cover, and flexible ducts may be connected to each circular hole of the side outlet 4 for local cooling. When used in combination with the filter unit 2, each of the circular holes is closed with a blind cover, the upper outlet 5 is opened, and the filter unit 2 is placed on the top surface of the upper outlet 5 as shown in the figure, and the filter unit 2 is integrally connected.

This filter unit 2 is shown in an exploded perspective view in FIG. 2, and has a vertical cubic shape having a front plate _15A , a rear plate _15B , a right side plate _15C , a left side plate _15D , a top plate _15E , and a bottom plate _15F . In the casing 15 of
A front air outlet 16 and an upper air outlet 17 consisting of four circular holes having the same structure as the side air outlet 4 are opened at the upper part of the front plate 15 _A and the front part of the top plate 15 _E , respectively. A rectangular suction port 18 is opened at the rear of _F in correspondence with the above-mentioned upper blow-off port 5.

The casing 15 is placed and fixed on the air conditioner main body 1 so that the suction port 18 matches the upper outlet 5.
A frame-shaped filter receiving frame 20 installed diagonally across between the upper side of _5B and the center of the bottom plate _15F is housed and fixed, and a high-performance filter is housed in this receiving frame 20. 19 is attached so that it can be taken in and out from the left side.

As shown in the figure, the filter receiving frame 20 is placed obliquely in a rearwardly inclined state across between the suction port 18 and both the air outlets 16 and 17, and therefore, the high-performance filter 19 attached thereto is Needless to say, it is arranged diagonally in a backward-leaning state.

The high-performance filter 19 has a rectangular parallelepiped shape whose four sides are surrounded by metal or hard synthetic resin thin plates, and has a high dust collection efficiency that can collect and remove 99% of 0.3 μm dust. Once the dust collection has been completed, the device is replaced with a new one.

In addition, in Fig. 2, 21 is a filter receiving rail,
Reference numeral 22 indicates a filter holding plate.

Further, reference numeral 23 denotes a blind cover for the outlet, which is slid and fixed to both the outlets 16 and 17, respectively.

In the spot type air conditioner having the above-described structure, the air conditioner body 1 and the filter unit 2 are assembled and connected as shown in the figure, and the high-performance filter 19 is held in place by the filter receiving frame 20, filter receiving rail 21, and filter holding plates 22, 22. Remove the outlet blind cover 23 of the front outlet 16 or the upper outlet 17, and fix it on the side outlet 4 of the air conditioner main body 1. A flexible duct is connected to each circular hole of the upper air outlet 17,
When the compressor 9 and both fans 13 and 14 are operated, the cooling air passes through the blowout chamber 12, the upper blowout port 5, and the suction port 18, reaches the space behind the high-performance filter 19 in the casing 15, and blows upward. In some cases, the air is evenly blown over the entire surface of the diagonally arranged high-performance filter 19, and after passing through the filter 19 and being filtered, it passes through the space in front of the filter.
The air is blown out from the front outlet 16 or the upper outlet 17.

By arranging the high-performance filters 19 diagonally across the air in this manner, drifting of the flow is less likely to occur, and dust collection is performed with high efficiency.

(Effect of the invention) This invention has a high performance filter 1 inside the casing 15.
9 is tilted diagonally and the spaces on both sides thereof are used for air passages, so that uneven flow is prevented and smooth rectification is performed in the minimum space, making the structure compact and maintaining high dust collection efficiency.

In addition, in order to obtain a wide area facing the filter front space at the front and upper part of the top surface of the casing 15, the air outlets 16 and 17 are provided at two locations on the front and top surfaces.
can be opened, and one of the air outlets 16 and 17 can be opened with a blind lid 23.
By simply covering the air outlet, you can select the blowing direction according to the mode of use, expanding the range of use.

Furthermore, when the high-performance filter 19 is inserted or removed, the support frame such as the filter receiving rail needs to be of a structure capable of supporting only one corner of the lower side of the filter, so it can be a small and simple member.

Thus, the filter unit for air conditioners of the present invention can improve the cleanliness grade of air conditioners at low cost.

[Brief explanation of the drawing]

Fig. 1 is a structural diagram of a spot type air conditioner according to an embodiment of the present invention as seen from the left side, Fig. 2 is an exploded perspective view of the filter unit in Fig. 1, and Fig. 3 is a schematic diagram of a conventional spot type air conditioner. FIG. 1...Air conditioner, 2...Filter unit, 5...
...Outlet, 15...Casing, 16...Front outlet, 16...Upper outlet, 18...Suction port, 19...
...High performance filter.

Claims (1)

[Scope of utility model registration request] A filter unit 2 is connected to the air conditioner main body 1 to filter the blown air, and a suction port 18 connected to the air outlet 5 of the main body 1 is opened near the back side of the bottom surface of the casing 15. Front air outlet 16 and upper air outlet 1 at the top and front of the top surface
On the other hand, inside the casing 15, there is a high-performance filter 1 placed diagonally in a rearwardly inclined state across between the suction port 18 and both the blow-off ports 16 and 17.
9, and the front outlet 16 or the upper outlet 17 is covered by a removable blind cover 23.