JPH0673644U - Wind direction change device - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a wind direction changing device for an air conditioner or the like, which increases the speed of the air blown from the air outlet without increasing the air volume and extends the horizontal reach to realize comfortable air conditioning. This is the purpose. [Structure] An upper louver 9 and a lower louver 10 that are narrower on the downstream side than on the upstream side and face each other are combined in a space with the lower cabinet 2 having a guide wall 3 on the inner surface of the air passage opposite to the upper cabinet 1. , Lower louver 1 at horizontal blowing position
A louver 8 having a rotary shaft 11 whose upstream end of 0 is close to the guide wall 3 is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a blowing-direction changing device for an air conditioner or the like.

[0002]

[Prior art]

 With regard to the air-direction changing device on the outlet side of recent air conditioners and the like, various measures have been taken for downward blowing in order to achieve comfortable air conditioning during heating.

As a conventional wind direction changing device, there is a device disclosed in Japanese Patent Laid-Open No. 62-213642.

An example of a conventional wind direction changing device will be described below with reference to the drawings. FIG. 3 is a vertical cross-sectional view of the conventional wind direction changing device during horizontal blowing, and FIG. 4 is a vertical cross-sectional view of the conventional wind direction changing device during downward blowing.

In FIG. 3, reference numeral 1 is an upper cabinet, 2 is a lower cabinet, and they are located relative to the upper cabinet 1. Reference numeral 3 is a guide wall, which is formed on the inner surface of the air passage of the lower cabinet 2. A louver 4 is built in the space between the upper cabinet 1 and the lower cabinet 2 and is formed by an upper louver 5 and a lower louver 6 that face each other in parallel. A rotating shaft 7 rotates the louver 4.

The operation of the wind direction changing device configured as described above will be described below with reference to FIGS. 3 and 4.

During cooling, the specific gravity of the blown air is heavier than the air specific gravity of the air-conditioned space, so that the louver 4 is oriented horizontally as shown in the position of FIG. 3 in order to blow out horizontally from the upper side to fill the air-conditioned space with cool air. . The air flow sent from the fan (not shown) is a little downward air flow along the guide wall with respect to the wind passing through the center of the louver 4, and merges into a wide air flow with a low wind speed up and down.

Next, during heating, since the specific gravity of the blown air is lighter than the air specific gravity of the air-conditioned space, the louver 4 is blown downward to reach the floor surface of the air-conditioned space as shown in the position of FIG. To do. The airflow sent from a fan (not shown) merges with the airflow that bends downward through the center of the louver 4 and the airflow along the guide wall 3 due to the Coanda effect (wall surface adhesion effect), and the entire flow is directed downward. The reason for providing the guide wall is to reduce the pressure loss caused by changing the wind direction.

[0009]

[Problems to be solved by the device]

 However, with the above configuration, the horizontal wind speed is slow and the horizontal reach is short, so that it is not possible to ensure uniform comfort in the air-conditioned space. On the other hand, when the air volume is increased and the wind speed is increased, conversely, when blowing downward, the documents on the desk fly and the ash in the ashtray scatters.

In view of the above problems, the present invention provides a wind direction changing device capable of increasing the wind speed and increasing the horizontal arrival distance without increasing the air volume during horizontal blowing.

[0011]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the airflow direction changing device of the present invention includes an upper cabinet and a lower cabinet having a guide wall on the inner surface of the air passage facing the upper cabinet, which is provided in the outlet from the upstream side to the downstream side. The upper louver and the lower louver, which face each other with a narrower side, are combined to be integrated, and a louver having a rotating shaft in which the upstream end of the lower louver is close to the inner wall of the case is provided at the horizontal blowing position. is there.

[0012]

[Action]

 With the above-described structure, the present invention makes it possible to increase the wind speed during horizontal blowing, ensure a horizontal reach, and realize comfortable air conditioning.

[0013]

【Example】

 A wind direction changing device according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a vertical cross-sectional view of a wind direction changing device according to an embodiment of the present invention during horizontal blowing, and FIG. 2 is a vertical cross-sectional view of the wind direction changing device of the same embodiment during downward blowing.

In FIG. 1, reference numeral 8 denotes a louver, which is built in a space between the upper cabinet 1 and the lower cabinet 2, and is made integral by combining an upper louver 9 and a lower louver 10 that face each other by narrowing the downstream side from the upstream side. At the horizontal blowing position, the upstream end of the lower louver 10 has a rotating shaft 11 that is close to the guide wall 3.

The operation of the wind direction changing device configured as described above will be described below with reference to FIGS. 1 and 2.

During cooling, since the specific gravity of the blown air is heavier than the air specific gravity of the air-conditioned space, the louver 8 is oriented horizontally as shown in the position of FIG. 1 in order to blow out horizontally from above to fill the air-conditioned space with cool air. . The airflow sent from a fan (not shown) passes through the center of the louver 8 and is contracted along the louver 10 that is in contact with the guide wall 3, increasing the wind speed and extending the horizontal reach.

Next, at the time of heating, since the specific gravity of the blown air is lighter than the air specific gravity of the air-conditioned space, the louver 8 is directed downward as shown in the position of FIG. 2 so that it blows downward and reaches the floor surface of the air-conditioned space. To do. The air flow sent from a fan (not shown) merges with the air flow that bends downward through the center of the louver 8 and the air flow along the guide wall 3 due to the Coanda effect (wall surface adhesion effect), and the whole flows downward.

As described above, the wind speed can be increased during horizontal blowing, and a comfortable air-conditioned space can be obtained by ensuring the horizontal reach distance.

[0020]

[Effect of device]

 As described above, according to the present invention, the upper louver and the lower louver that face each other with the downstream side narrowed from the upstream side are combined in a space with the lower cabinet that has a guide wall on the inner surface of the air passage opposite to the upper cabinet. By providing a louver with a rotation axis in which the upstream end of the lower louver is close to the guide wall at the horizontal blowing position, the wind speed can be increased during horizontal blowing and the horizontal reach distance can be secured and comfortable. An air-conditioned space can be obtained. Compared to increasing the air volume to increase the wind speed, it is possible to save unnecessary energy to the fan and contribute to energy conservation.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a wind direction changing device according to an embodiment of the present invention during horizontal blowing.

FIG. 2 is a vertical cross-sectional view of the wind direction changing device of the embodiment when blown downward.

FIG. 3 is a vertical cross-sectional view of a conventional wind direction changing device during horizontal blowing.

FIG. 4 is a vertical cross-sectional view of a conventional wind direction changing device during downward blowing.

[Explanation of symbols]

 1 Upper cabinet 2 Lower cabinet 3 Guide wall 8 Louver 9 Upper louver 10 Lower louver 11 Rotating shaft

Claims (1)

[Scope of utility model registration request] 1. An upper cabinet, a lower cabinet having a guide wall on the inner surface of the air passage opposite to the upper cabinet, and a space built in between the upper cabinet and the lower cabinet, wherein the downstream side is narrowed from the upstream side. And a lower louver, which are opposed to each other, are integrated into one body, and the upstream direction end of the lower louver at a horizontal blowing position has a louver having a rotation axis close to the guide wall.