JP2854726B2 - Damper mechanism and air conditioner equipped with this - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a damper mechanism and an air conditioner provided with the damper mechanism. In particular, the present invention relates to a damper mechanism. The present invention relates to a damper mechanism suitable for prevention and an air conditioner (hereinafter, referred to as an "air conditioner") including the damper mechanism.

[0002]

2. Description of the Related Art The prior art is disclosed in Japanese Patent Laid-Open No. 59-1388.
As described in Japanese Patent Publication No. 41, the damper is opened and closed using a damper motor and a link mechanism.

[0003]

However, the prior art has a problem in terms of manufacturing cost and reliability due to an increase in the number of parts because the structure is complicated and power for driving the damper motor is required. There is a problem that the damper mechanism does not operate when the power is cut off.

A first object of the present invention is to automatically close a wind direction plate during a headwind without using a special driving source, and to automatically open the wind direction plate when a transition is made from a headwind state to a blown state. An object of the present invention is to provide a damper mechanism as described above.

A second object of the present invention is to use a small and lightweight wind direction plate even in a large duct , automatically close the wind direction plate in the case of a headwind, and change the state from a headwind state to a blowing state in the case of a headwind. An object of the present invention is to provide a damper mechanism that automatically opens a wind direction plate.

A third object of the present invention is to provide a highly reliable air conditioner that can reliably prevent the backflow of air even when the air-conditioning equipment fails or when a power failure occurs.

[0007]

To SUMMARY OF THE INVENTION To achieve the first object, the present invention provides a duct installed in Suyo flow of air toward the lower portion from the vertical direction upper, inside the duct, A wind direction plate having an upper bent portion and a lower bent portion bent in opposite directions at the ends in the vertical direction ,
Counterclockwise when viewed from the left side when there is no wind
The wind direction plate to the center of gravity so that it is slightly inclined in the measuring direction.
Rotation that supports rotatably at a position deviated above the point
A fulcrum, and each bent portion of the wind direction plate is placed in a normal wind state.
At the time of rotation around the rotation fulcrum due to the weight of the wind direction plate
Rolling moment and the upper bent part and the lower bent part
Rotational moment due to wind pressure on shaft
Formed as follows .

In order to achieve the second object,
In the present invention, the inside of the duct is partitioned by a partition plate,
Wind direction plate having a plurality of ducts through which air is passed in the direction, and having , inside each duct, an upper bent portion and a lower bent portion which are bent at opposite ends at a vertical end.
And in the vertical direction when viewed from the left side when there is no wind
Adjust the wind direction plate so that it is in a slightly inclined posture in the counterclockwise direction.
Rotatably supported at a position deviated above the center of gravity
A rotating fulcrum, and each bent portion of the wind direction plate
In the state, around the rotation fulcrum due to the weight of the wind direction plate
And the upper bending part and the lower folding part
The rotational moment due to wind pressure on the
It was formed so that it might become .

Furthermore, in order to achieve the third object, the present invention provides an air conditioner, a blower, and conditioned air blown out of the blower from a vertically upper part to a lower part in a housing. And the above-mentioned damper mechanism.

[0010] In order to achieve the third object, the present invention comprises a plurality of units arranged vertically one above the other, the damper mechanism being installed in the lowermost unit, and the above-mentioned unit being installed in the upper unit. A blower that feeds conditioned air into the damper mechanism is installed, and an air conditioning device is installed in a selected one of the plurality of units.

[0011]

According to the first aspect of the present invention, the position of the rotation fulcrum of the wind direction plate supported inside the damper and the area of the upper and lower bent portions are determined. In the reverse wind state, the wind direction plate is set to take a posture to close the inside of the duct by the wind pressure.

Therefore, in the blowing state in which air is blown from the upper part to the lower part in the vertical direction, the airflow direction plate takes a vertical position with the smallest blowing resistance, so that the air is blown out from the upper part of the duct through the inside smoothly. be able to.

[0013] Then, when there is a headwind in which air flows from the lower part to the upper part in the vertical direction inside the duct, the wind direction plate is rotated in the closing direction by the rotational moment due to the wind pressure, and the duct is closed soon. Thereby, it is possible to prevent the air from flowing in the opposite direction inside the duct, and it is possible to eliminate the problem caused by the air flowing in the opposite direction.

Then, when the wind direction is changed from the headwind state to the blown state, the wind direction plate rotates in the opening direction by the gravitational moment due to its own weight, and returns to the vertical position.

By the above operation, without using a special driving source, the wind direction plate is automatically closed at the time of headwind and automatically returned to the open state at the time of transition from the headwind state to the blowing state. be able to.

In the invention according to claim 2 of the present invention, the inside of the duct outer frame is partitioned into a plurality of ducts by partition plates, and the wind direction plates are provided inside each duct.

Therefore, even in the case of a large duct, a small and lightweight wind direction plate is used, and the wind direction plate is automatically closed at the time of headwind, and automatically opened at the time of transition from the headwind state to the blow state. Can be

In the invention according to claim 3 of the present invention, the air conditioning equipment, the blower, and the damper mechanism having the above-described configuration are installed in the housing.

Therefore, by the action of the wind direction plate provided inside the duct in the damper mechanism, it is possible to reliably prevent the backflow of air even when the air conditioning equipment is out of order or when there is a power failure.

[0020] In the invention according to claim 4 of the present invention, a plurality of units are arranged vertically one above the other, the duct mechanism is installed in the lowermost unit, and a blower is installed in the upper unit. Air conditioning equipment is installed in the selected unit.

[0021] This makes it possible to reliably prevent the backflow of air even in the event of a failure or power failure of the air conditioning equipment.
It can be transported in a state where it is disassembled into units, and assembled and used at the site of use.

[0022]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a longitudinal sectional view showing a first embodiment of the damper mechanism of the present invention.

In the first embodiment, a duct 1 and a wind direction plate 2 are provided.

The duct 1 is installed vertically. This duct 1 is expected to have a blowing state in which air is blown from the upper part to the lower part as shown by arrow A, a reverse wind state in which air flows from the lower part to the upper part opposite to arrow A, and a no-wind state. I have.

The wind direction plate 2 has a rotation fulcrum 3, an upper bent portion 4, and a lower bent portion 5. The rotation fulcrum 3 is provided on a bracket attached to the side of the wind direction plate 2. The upper bent portion 4 and the lower bent portion 5 are formed by bending an upper end portion and a lower end portion of the wind direction plate 2 in directions opposite to each other.

In this embodiment, the position of the rotation fulcrum 3 of the wind direction plate 2 and the area of the upper bent portion 4 and the lower bent portion 5 are determined by setting the position of the rotation fulcrum 3 in the direction perpendicular to the center of gravity of the wind direction plate 2. The upper bent portion 4 is set at a position deviated upward, and the area of the upper bent portion 4 is set to be larger than the area of the lower bent portion 5, so that the wind direction plate 2 is slightly inclined with respect to the vertical direction in a windless state. 2c, it takes a posture 2a in the vertical direction in the blowing state, takes a posture 2b to close the inside of the duct 1 in the headwinding state, and from the posture 2b closed by gravity due to its own weight when it changes from the headwind state to the blowing state. It is configured to automatically return to the open position 2a.

The damper mechanism of the first embodiment operates as follows.

In the blowing state in which air is blown in the direction indicated by the arrow A in FIG. 1, the wind direction plate 2 automatically reduces the rotational moment due to its own weight and the rotation direction of the wind direction plate 2 to reduce the blowing resistance. The posture 2a in the vertical direction is taken in which the rotational moment due to the resistance to air blowing to the upper bent portion 4 and the lower bent portion 5 is balanced. In this posture 2a, the air direction plate 2 is fully opened and the airflow resistance is the smallest, so that the air passes through the duct 1 smoothly and is blown out from the duct 1.

Next, when there is a headwind in which air flows from the lower part to the upper part of the duct 1, the area of the upper bent part 4 of the wind direction plate 2 is larger than the area of the lower bent part 5. The wind pressure of the reverse wind largely acts on the upper bent portion 4. The wind pressure acting on the upper bent portion 4 generates a rotational moment in the wind direction plate 2, and the wind direction plate 2 rotates counterclockwise in FIG. 1 around the rotation fulcrum 3, takes the posture 2 b, and closes the inside of the duct 1. Therefore, without providing a special driving source, the wind direction plate 2 is securely closed at the time of a headwind, so that the backflow of air can be prevented.

When the state changes from the backward wind state to the blown state, the wind direction plate 2 changes its posture from its closed posture 2b to its open posture 2a by its own weight.

Since there is no wind pressure acting on the upper bent portion 4 and the lower bent portion 5 in a windless state, the wind direction plate 2 is slightly inclined counterclockwise in FIG. Stand still in posture 2c.

Next, FIG. 2 shows a second embodiment of the damper mechanism of the present invention, and is a perspective view of a wind direction plate.

In the second embodiment, both ends of the airflow direction plate 2 orthogonal to the air blowing direction are bent, and the rotation fulcrum 3 is located at a position which is deviated upward in the vertical direction of the bent both ends.
Is provided, and the duct is supported by a pin through the hole.

The upper bent portion 4 and the lower bent portion 5 of the wind direction plate 2 are formed as separate parts, and are attached by welding or the like.

The operation of the wind direction plate 2 in the second embodiment is the same as that in the first embodiment.

FIG. 3 is a longitudinal sectional view showing a third embodiment of the damper mechanism of the present invention.

In the third embodiment, the inside of the duct outer frame 6 is partitioned into a plurality of ducts 1 by a plurality of partition plates 7.

In each duct 1 partitioned by the partition plate 7, a wind direction plate 2 is rotatably supported via a rotation fulcrum 3. As shown in FIG. 1 or FIG.
The following is used.

The operation of each wind direction plate 2 is the same as in the first embodiment.

In the third embodiment, the inside of the large duct outer frame 6 is divided into a plurality of ducts 1 by the partition plate 7, and the wind direction plate 2 is provided in each duct 1.
Even if it is a substantially large duct formed by the above, it can be automatically closed in the reverse wind state by the small and lightweight wind direction plate 2, and opened automatically when the state changes from the reverse wind state to the air blow state. It can be returned to the posture.

FIG. 4 is a longitudinal sectional view showing a first embodiment of the air conditioner of the present invention.

In the first embodiment, the duct 1 is installed in the lower part of the housing, the blower 9 is installed in the upper part thereof, and the heat exchanger 8 is installed in the upper part of the blower 9. An air conditioner is configured by the duct 1, the blower 9, and the heat exchanger 8.

In the duct 1, a wind direction plate 2 as shown in FIG. 1 or FIG.

In the air conditioner of the first embodiment, the conditioned air generated in the heat exchanger 8 is sucked into the blower 9, and the conditioned air is blown out from the upper part to the lower part of the duct 1 through the blower 9. You. In this blowing state, the wind direction plate 2 assumes the posture 2a shown in FIG.

When air flows in the opposite direction into the duct 1, the wind direction plate 2 rotates counterclockwise in FIG. 4 to take the posture 2b shown in FIG. 1 to prevent the air from flowing backward.

As described above, when a plurality of air conditioners are installed under the floor at a high static pressure, even if one of the air conditioners is stopped, the air flows backward from the floor to the stopped air conditioner and the air conditioning efficiency is lost. Can be easily prevented, and the backflow of air can be reliably prevented even in the event of a failure or power outage of the air conditioning equipment. Further, since no drive source is required, power supply and air conditioning equipment In the event of a failure, the wind direction plate 2 operates reliably.

FIG. 5 is a longitudinal sectional view showing a second embodiment of the air conditioner of the present invention.

In the second embodiment, a first unit 11, a second unit 12, and a third unit 13 are arranged from the upper part to the lower part in the vertical direction.

The first unit 11 includes a heat exchanger 8
Is installed. The heat exchanger 8 generates conditioned air and sends the conditioned air toward the second unit 12.

A blower 9 is provided in the second unit 12. The blower 9 sucks the conditioned air sent from the heat exchanger 8 and discharges the conditioned air vertically downward.

The third unit 13 includes a duct 1
And a refrigeration cycle component such as the compressor 10 are provided. A wind direction plate 2 as shown in FIG. 1 or 2 is supported in the duct 1 via a rotation fulcrum 3. The duct 1 blows out the conditioned air discharged from the blower 9 from the upper part to the lower part in the vertical direction. The wind direction plate 2 operates in the same manner as the wind direction plate in the air conditioner of the first embodiment.

In the air conditioner of the second embodiment, the first, second, and third units 11, 12, and 13 are transported in a disassembled state and can be assembled at the site of use. This is the same as the air conditioner of the first embodiment.

[0054]

According to the invention of claim 1, wherein the present invention has been described in the foregoing, the vertical upper toward the lower duct installed air <br/> flow Suyo, inside the duct , Up and down
Wind direction plate having an upper bent portion and a lower bent portion bent at opposite ends at opposite ends, and a windless state
When viewed from the left side, counterclockwise with respect to the vertical direction
Place the wind direction plate more than the center of gravity so that it has a slightly inclined posture.
And a rotation fulcrum that is rotatably supported at a position deviated upward.
When each bent portion of the wind direction plate is in a normal wind state
Rotational moment about the rotation fulcrum due to the weight of the wind direction plate
To the upper bent portion and the lower bent portion.
Shape so that the rotational moment due to wind pressure is approximately the same
Having formed without using a special drive source, automatically closes the wind direction plate at the time of headwinds, when transition from headwind state to the blowing state, the effect of the wind direction plate can no to open automatically.

According to the invention of claim 2 of the present invention, the present invention provides a method for separating the inside of a duct by a partition plate,
A plurality of ducts that allow air to pass in the vertical direction are formed, and inside each duct, a wind direction plate having an upper bent portion and a lower bent portion bent at opposite ends at upper and lower ends , and when there is no wind In the vertical direction when viewed from the left side
The wind direction plate so that it is slightly inclined counterclockwise.
Is rotatably supported at a position deviated above the center of gravity.
Rotating fulcrum, and each bent portion of the wind direction plate is
The rotation fulcrum rotation due to the weight of the wind direction plate in a wind state
And the upper bending part and the lower part
Approximately the same rotational moment due to wind pressure on the bent part
Even if it is a large duct, use a small and lightweight wind direction board and use a special drive source.
In other words, the wind direction plate is automatically closed at the time of headwind, and the wind direction plate is automatically opened at the time of transition from the headwind state to the blown state.

Further, according to the third aspect of the present invention, the air conditioning equipment, the blower, and the conditioned air blown out from the blower are blown from the upper part to the lower part in the vertical direction in the housing. Since the damper mechanism according to the first or second aspect of the present invention is provided, it is possible to reliably prevent the backflow of air even when the air-conditioning equipment is out of order or at the time of a power outage, thereby improving reliability.

According to the invention as set forth in claim 4 of the present invention, a plurality of units are vertically arranged one above the other, and the damper mechanism according to claim 1 or 2 is installed in the lowermost unit. In the upper unit, a blower that sends conditioned air to the damper mechanism is installed, and an air conditioning device is installed in a selected unit of the plurality of units. Has the effect of reliably preventing the backflow of air, and also has the effect of being disassembled into units and transported, and assembled and used at the site of use.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a first embodiment of a damper mechanism of the present invention.

FIG. 2 is a view showing a second embodiment of the damper mechanism of the present invention, and is a perspective view of a wind direction plate.

FIG. 3 is a longitudinal sectional view showing a third embodiment of the damper mechanism of the present invention.

FIG. 4 is a longitudinal sectional view showing a first embodiment of the air conditioner of the present invention.

FIG. 5 is a longitudinal sectional view showing a second embodiment of the air conditioner of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 duct 2 wind direction board 2a attitude of wind direction board in blowing state 2b attitude of wind direction board in reverse wind state 2c attitude of wind direction board in windless state 3 rotation fulcrum of wind direction board 4 upper bent portion of wind direction plate 5 lower bent portion of wind direction plate 6 Duct outer frame 7 Partition plate 8 Heat exchanger 9 Blower 10 Compressor 11 First unit 12 Second unit 13 Third unit

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Yasuhiro Harada 390 Muramatsu, Shimizu-shi, Shizuoka Pref., Shimizu Plant, Hitachi, Ltd. (72) Inventor Osamu Seki 390 Muramatsu, Shimizu-City, Shizuoka Pref., Shimizu Plant, Hitachi, Ltd. 72) Inventor Masayoshi Nakao 1-6, Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Inventor Isamu Sudo 1-6-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Inventor Akira Maeda 1-6-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Inventor Tsuneo Uekusa 1-6-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (56) References Japanese Utility Model 1984-123240 (JP, U) Japanese Utility Model 1984-38635 (JP, U) Japanese Utility Model 6-186049 (JP, U) Japanese Utility Model 63-168747 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) F24F 1/00 306 F24F 13/14

Claims (4)

(57) [Claims] 1. A duct is installed in the vertical direction of the flow of air from the top to bottom Suyo, inside the duct, the upper
A wind direction plate having an upper bent portion bent in opposite directions to the end of the downward and the lower bent portion, windless shape
Counterclockwise with respect to vertical when viewed from the left side
Place the wind direction plate from the center of gravity so that the posture is slightly inclined.
And a rotation fulcrum that is rotatably supported at a position deviated upward.
When each bent portion of the wind direction plate is in a normal wind state
The rotation mode around the rotation fulcrum due to the weight of the wind direction plate
To the upper bent part and the lower bent part
So that the rotational moment due to the wind pressure of the
A damper mechanism characterized by being formed . 2. The interior of the duct is partitioned by a partition plate,
A plurality of ducts that allow air to pass in the vertical direction are formed, and inside each duct, a wind direction plate having an upper bent portion and a lower bent portion bent at opposite ends at upper and lower ends , and when there is no wind In the vertical direction when viewed from the left side
The wind direction plate so that it is slightly inclined counterclockwise.
Is rotatably supported at a position deviated above the center of gravity.
Rotating fulcrum, and each bent portion of the wind direction plate is
The rotation fulcrum rotation due to the weight of the wind direction plate in a wind state
And the upper bending part and the lower part
Approximately the same rotational moment due to wind pressure on the bent part
A damper mechanism characterized in that the damper mechanism is formed as follows . To 3. A casing, a device for air conditioner, a blower, and a damper mechanism of claim 1 or 2, wherein for blowing toward the bottom of the conditioned air blown out from the blower to the vertical direction of the upper An air conditioner comprising: 4. A structure in which a plurality of units are stacked vertically.
A housing that is, the damper mechanism of claim 1, wherein is installed in the unit of the bottom, is installed in the unit of the upper, a blower for feeding conditioned air to the damper mechanism, the plurality of units an air conditioner characterized by comprising an equipment installed for air conditioning in the selected unit from within.