JPH0740918Y2 - Floor blowing unit - Google Patents

Description

[Detailed Description of the Invention] Industrial field of application The present invention relates to a floor blowing unit installed under the floor for ventilation and air conditioning in buildings, offices, stores and the like.

2. Description of the Related Art In the conventional floor blowing unit of this type, as shown in FIGS. 3 and 4, the outer cover of the unit is composed of a floor material 101. The outlets 102 are provided symmetrically in the front-rear direction, and the fan casing 10 is provided below the floor material 101.
3 is provided, and 104 built in the fan casing 103 is configured to be directly connected to the motor 105, and the motor 105 is fixed to the support 106 fixed to the fan casing 103.

Problems to be Solved by the Invention In such a conventional configuration, after being installed under the floor, dust, dust, etc. fall from the floor through the outlet 102 into the unit.
Accumulated and unclean. In addition, the heat generated by the motor 105 causes a fire, which has a very bad influence on safety.

In the conventional configuration as described above, the noise generated from the impeller directly comes out to the floor through the outlet 102, and the noise in the office is often large.

In consideration of these problems, the present invention is provided with a receiver for dust, dust, etc. generated after installation, is equipped with a motor plate that can be cleaned and that does not directly transmit noise from the impeller to the outlet, It is an object of the present invention to provide a floor blowout unit that facilitates noise reduction.

Means for Solving the Problems In order to solve this problem, the present invention is to form a square floor material on one side of the outer surface of a unit, provide an outlet in the floor material, and place the air outlet in the center of the floor material. A motor plate that is eccentric with respect to the center axis and is provided symmetrically with respect to the central axis, is positioned horizontally with the floor material inside the unit, and has a discharge port, and installs a chamber between the motor plate and the floor material. Part is provided, the motor is fixed to the motor plate, the impeller is arranged at the lower part, and a backflow prevention damper is provided on the discharge side of the impeller so that the discharge port and the outlet are concentric with each other. This is a structure of the floor blowing unit which is arranged symmetrically with respect to the central axis so that it does not occur.

Operation With this configuration, when dust or dirt enters, the fan casing fixed to the floor material is not detached and the dust or dust received on the upper portion of the motor plate from the air outlet can be easily cleaned.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

In the figure, 1 is a square-shaped floor material, and this floor material 1 is
The floor material 1 which forms one outer surface of the floor blowing unit,
Is eccentric by 1 dimension in the X-axis direction from the center and X-axis in the Y-axis direction.
Two outlets 2 are provided symmetrically with respect to an axis, a fan casing 3 is fixed to the floor material 1, and a motor plate 4 is provided by directly connecting a motor 6 to an impeller 5 built in the fan casing 3, The motor 6 is formed by being fixed to the motor plate 4. The outlet 7 of the impeller 5 is provided at a position symmetrical with respect to the outlet of the floor material 1 about the Y axis,
A damper 8 for preventing backflow is provided at the discharge port 7, the inside of the fan casing 3 is vertically divided by a motor plate 4, and an air passage 9 is provided.

With the above-described configuration, dust, dust, and the like that have entered through the air outlet 2 can be received on the upper surface of the motor plate 4, and cleaning can be easily performed from the floor air outlet 2 without removing the floor material 1. Further, by arranging the discharge port 7 and the blowout port 2 symmetrically, it is possible to easily reduce noise from the impeller.

Effects of the Invention As is apparent from the above-described embodiments, according to the present invention, the air outlet is eccentric with respect to the center by the dimension l, and the partition plate provides the ventilation passage in the fan casing. By configuring the outlet and the outlet symmetrically, dust and dirt can be received by the motor plate and easily cleaned, and
The backflow-preventing damper has an effect that it is possible to easily prevent dust and dirt from entering the impeller, and prevent backflow when the blower is stopped, so that the air conditioning load can be easily reduced.

[Brief description of drawings]

FIG. 1 is a front view of a floor blower according to an embodiment of the present invention,
FIG. 2 is a side sectional view of the floor blower, FIG. 3 is a front view of a conventional floor blower, and FIG. 4 is a side sectional view of the same. 1 ... Floor material, 2 ... Air outlet, 3 ... Fan casing,
4 ... motor plate, 5 ... impeller, 6 ... motor,
7 ... Discharge port, 8 ... Damper, 9 ... Ventilation passage.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Naoji Sugie, 6-2 61, Imafuku Nishi, Joto-ku, Osaka City, Osaka Prefecture Matsushita Seiko Co., Ltd. (72) Takeo Suwa 8-21, Ginza, Chuo-ku, Tokyo No. Stock Company Takenaka Corporation Tokyo Main Store (72) Inventor Takanori Chiba 8-21-1, Ginza Chuo-ku, Tokyo Stock Company Takenaka Corporation Tokyo Main Store (72) Inventor Toshiaki Tanaka 8 Ginza, Chuo-ku, Tokyo Chome 21-1 Takenaka Corporation Tokyo Main Store (72) Inventor Yukihiko Tomomatsu 8-21-1, Ginza Chuo-ku, Tokyo Stock Corporation Takenaka Corporation Tokyo Main Store (72) Inventor Yukio Omiya Tokyo 8-21-1, Ginza, Chuo-ku, Ltd. Takenaka Corporation, Tokyo Main Store (72) Inventor Yoshiaki Nagasawa 2-5-14, Minamisuna, Koto-ku, Tokyo Takenaka Engineering Co., Ltd. In the laboratory

Claims (1)

[Scope of utility model registration request] 1. An outer surface of a unit is formed by a square floor material, a blowout port is provided in the floor material, the blowout port is eccentric with respect to the center of the floor material, and two locations are symmetrical with respect to the central axis. Provided,
A motor plate, which is positioned horizontally with the floor material and provided with a discharge port, is attached in the unit, a chamber portion is provided between the motor plate and the floor material, and the motor is fixed to the motor plate. A floor blow-out unit in which an impeller is disposed on the discharge side of the impeller, and a damper for preventing backflow is provided on the discharge side of the impeller so that the discharge port and the discharge port are symmetrical with respect to the central axis so as not to be concentric with each other. .