JPH051933U - Ventilation fan - Google Patents

Abstract

(57) [Summary] [Purpose] A damper that moves up and down is provided at the back of a simultaneous supply and discharge type ventilation fan in which a ventilation pipe and an exhaust pipe are connected.
(EN) A ventilation fan capable of preventing outside air and cold air from entering from the above pipes. [Structure] The exhaust pipe 2 and the air supply pipe 3 are attached to a mounting plate 44. A cover 36 is attached to the back surface of the main body case 11 having the exhaust communication port 31, which communicates with the exhaust pipe 2 and the air supply pipe 3, and the air supply communication port 30, which are provided on the back.
A shutter plate 32 that closes the exhaust communication port 31 and the air supply communication port 30 is provided in the interior of 6, and a damper 42 that moves up and down the shutter plate 32 is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a simultaneous supply / discharge type ventilation fan.

[0002]

[Prior Art]

 FIG. 7 is a view showing a conventional ventilation fan disclosed in, for example, Japanese Utility Model Laid-Open No. Sho 60-182632, in which reference numeral 1 is a mounting plate mounted on a wall of a building, an exhaust pipe 2 and an air supply pipe 3 Is penetrated. The exhaust pipe 2 and the air supply pipe 3 also penetrate the wall. Reference numeral 4 denotes a main body casing mounted on the mounting plate 1, and has communication ports A5 and B6 provided at the back thereof so as to communicate with the exhaust pipe 2 and the air supply pipe 3, respectively. 7 is a packing for preventing air leakage between the communication ports A5 and B6 and the pipes 2 and 3, and 8 is a panel provided in the front part of the main body casing 4 and includes a suction port 9 and The discharge port 10 is bored. Reference numeral 11 is a main body case formed by this panel and the main body casing 4, 12 is a partition wall for partitioning the interior of the main body case, 13 is a motor mounting plate mounted on the partition wall, and 14 is a motor mounting plate mounted on the motor mounting plate. Electric motors, 15 and 16 are air supply fans and exhaust air fans mounted on the electric motors, 17 is an exhaust passage communicating with the communication port A5 and the suction port 9, and 18 is the communication port B6 and the discharge port 10. A heat exchanger provided at the intersection of the air supply passage and the exhaust passage 17, 20 a screw for fixing the upper air main body casing 4 to the mounting plate 1, 21 a shutter A plate is slidably provided between the communication ports A5 and B6 at the back of the main body casing 4 and the exhaust pipe 2 and the intake pipe 3 so as to open and close ventilation therebetween. Reference numeral 22 denotes a cover that slidably holds the shutter plate, and has side walls 23 on the side and the upper side excluding the lower part, in which the shutter plate 21 slides left and right. Reference numerals 24 and 25 are communication holes A, B, 26 and 27 formed in the shutter plate 21, and communication holes C and D are formed in the cover 22. The communication hole A26 is formed when the shutter plate 2 slides. , B27. Reference numeral 28 is a handle portion formed in the lower portion of the shutter plate 2.

The conventional ventilation fan is configured as described above, and when the electric motor 14 is operated, indoor air enters the main body case 11 through the suction port 9 and is heat-exchanged by the heat exchanger 19, and exhausted through the communication port A5. It is exhausted to the outside through the pipe 2. On the other hand, the outdoor air enters the main body case 11 from the air supply pipe 3 through the communication port B6, is heat-exchanged by the heat exchanger 19, and is supplied to the room through the exhaust port 10. On the other hand, when the operation is stopped, the shutter plate 21 is slid to seal the space between the main body case 11 and each of the pipes 2 and 3 to prevent cold air and outside air from entering.

[0004]

[Problems to be solved by the device]

 In the conventional ventilation fan as described above, the shutter plate 21 is slid when the operation is stopped to seal the space between the main body case 11 and each of the pipes 2 and 3, but the air supply pipe 3 and the exhaust pipe 2 are separated from each other. If the distance is shorter than the diameter of the pipe, even if the shutter plate 21 is slid, the communication hole A24 partially overlaps the exhaust pipe 2 and the communication hole C26, and a gap is generated. There is a problem that outside air, cold air, and the like enter the room through C26, the communication hole A24, and the communication port A5.

The present invention has been made to solve the above problems, and even when the distance between the air supply pipe and the exhaust pipe is smaller than the diameter of the pipe, the shutter plate completely removes the main case and each pipe. The purpose of the invention is to obtain an air-cooling fan that can seal the space between and and that does not allow cold air or outside air to enter the room.

[0006]

[Means for Solving the Problems]

 A ventilation fan according to the present invention includes a main body case having an air supply fan and an exhaust fan, a communication port provided to communicate with an air supply pipe and an exhaust pipe connected to the main body case, and the communication port. A suction port and a discharge port provided in the main body case so as to communicate with the main body case, and a shutter plate slidably provided between the communication port and the pipes so as to open and close ventilation therebetween. A groove is formed in the shutter plate in the vertical direction, and a damper that slides in this groove is installed.

[0007]

[Action]

 In this invention, a main body case having an air supply fan and an exhaust fan, a communication port provided to communicate with the air supply pipe and the exhaust pipe connected to the main body case, and a communication port with this communication port. The suction plate and the discharge port provided in the main body case, and the shutter plate slidably provided between the communication port and each of the pipes so as to open and close ventilation between the pipe and the shutter plate. A groove is formed in the vertical direction, and a damper that slides in the groove is mounted, so that the communication port and the pipe are opened and closed by sliding the damper in the groove in the vertical direction.

[0008]

【Example】

 1 to 6 are views showing an embodiment of the present invention, and 2 to 4, 7 to 20 and 28 show the same or corresponding portions as the above conventional example. Reference numeral 30 denotes an air supply communication port formed in the back surface of the main body casing 4, 31 denotes an exhaust communication port also formed in the back surface of the main body casing 4, and 31 denotes exhaust gas also formed in the front surface of the main body casing 4. The communication port, that is, the distance between the exhaust communication port and the air supply communication port 30 is set to be smaller than the diameters of the exhaust pipe 2 and the air supply pipe 3. Reference numeral 32 denotes a shutter plate, which is communicated with the air supply communication port 30 and the exhaust gas communication port 31 and has a shutter air supply port 33 and a shutter air exhaust port 34 of the same pitch, which are formed in the lower left portion of the air supply communication port 30. A groove 35 is provided in the vertical direction. Reference numeral 36 denotes a cover, which slidably holds the shutter plate, and is provided with protrusions 37 on the side and the upper side excluding the lower side. Reference numerals 38 and 39 denote a cover air supply port and a cover air exhaust port, which communicate with the shutter air supply port 33 and the shutter air exhaust port 34 and have the same pitch. Reference numeral 40 denotes a slide groove which is formed in the lower part of the shutter exhaust port and the air supply port and has an inclination and is vertically formed, and has a stroke of the same length as the moving stroke of the shutter plate 32. Reference numeral 41 is a guide portion circumferentially provided in the slide groove toward the pipes 2 and 3 side, and 42 is a damper formed to be larger than the outer shape of each of the air supply communication port 30 and the exhaust communication port 31, and a column 43 at the lower left. Are lined up. Reference numeral 44 denotes a mounting plate, in which the air supply pipe 3 and the exhaust pipe 2 are fitted at the same pitch as the exhaust communication ports 30 and 31.

In the ventilation fan configured as described above, as shown in FIG. 2, the shutter plate 32 is internally provided in the cover 36 between the mounting plate 44 and the body case 11, and the shutter plate 32 is attached to the shutter plate 32. The damper 42 is mounted by inserting the support column 43 into the groove 35, and the support column 43 is also inserted into the slide groove 40 to be incorporated in the back of the main body case 11. Then, the main body case 11 is attached to the attachment plate 44 attached to the wall, and the electric motor 14 is operated in the same manner as in the conventional case, so that the room air enters the main body casing 11 from the suction port 9 and is heated by the heat exchanger 19. It is exchanged and exhausted to the outside from the exhaust communication port 31 through the exhaust pipe 2. On the other hand, the outdoor air enters the main body case 11 from the air supply pipe 3 through the air supply communication port 30, is heat-exchanged by the heat exchanger 19, and is supplied to the room through the exhaust port 10. When the operation is stopped, by sliding the shutter plate 32, the shutter plate 32 and the simultaneous support column 43 move upward while sliding in the groove 35 and the slide groove 40 as shown in FIG. 42 seals between the air supply communication port 30 and the air supply pipe 3. Then, when the shutter plate 32 is returned to its original position, the support column 43 moves downward. As a result, when the distance between the exhaust pipe 2 and the air supply pipe 3 is shorter than the diameter of each pipe 2, 3, the exhaust communication port 31 is sealed by the damper 42. Further, by providing the guide portion 41 in the slide groove 40 as shown in FIG. 3, the column 43 is prevented from being locally worn by friction with the cover 36, and the column 43 and the mounting plate 44 are not attached. Keep it in contact and smooth the movement of the damper 42.

Although the slide groove 40 is linearly provided in the above embodiment, the quadratic curve is formed as shown in FIGS. 5 and 6, and each side of the cross section of the column 43 is formed in an arc shape. The movement of the column 43 can be made smoother, and further, the damper 42 is rotated to move upward, thereby compensating for the lack of stroke and sealing the air passages at all pipe positions.

Further, in the above-mentioned embodiment, although the case of two pipes is described, it may be a ventilation fan equipped with a plurality of adjacent pipes, and the same effect as in the above-mentioned embodiment can be obtained.

[0012]

[Effect of the device]

 As described above, the present invention has a main body case having an air supply fan and an exhaust fan, and a communication port provided to communicate with the air supply pipe and the exhaust pipe connected to the main body case, respectively. An intake port and an exhaust port provided in the main body case so as to communicate with this communication port, and a shutter plate slidably provided between the communication port and each pipe so as to open and close ventilation between them. Since the shutter plate is provided with a groove in the up-down direction and a damper that slides in the groove is installed, when the pipe pitch between the air supply pipe and the exhaust pipe is smaller than the diameter of the pipe. Even if the damper is moved vertically, the ventilation between the communication port and the pipe can be closed, cold air and outside air are prevented from entering, and usability is further improved.

[Brief description of drawings]

1 is a perspective view and a sectional view showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing an embodiment of the present invention.

FIG. 3 is an exploded perspective view of a cover showing an embodiment of the present invention.

FIG. 4 is a rear view showing an opened and closed state of the shutter plate according to the embodiment of the present invention.

FIG. 5 is a movable view of a damper showing another embodiment of the present invention.

FIG. 6 is a movable view of a damper showing still another embodiment of the present invention.

FIG. 7 is a sectional view and a rear view showing a conventional ventilation fan.

[Explanation of symbols]

 2 Exhaust pipe 3 Air supply pipe 9 Suction port 10 Exhaust port 11 Main body case 15 Air supply fan 16 Exhaust fan 30 Air supply communication port 31 Exhaust communication port 32 Shutter plate 35 Groove 42 Damper 43 Strut

Claims (1)

[Claims for utility model registration] [Claim 1] A main body case having an air supply fan and an exhaust fan, and a communication port provided to communicate with the air supply pipe and the exhaust pipe connected to the main body case, respectively. And a suction port and a discharge port provided in the upper body case so as to communicate with the communication port, and a shutter slidably provided between the communication port and each of the pipes so as to open and close ventilation therebetween. A ventilating fan, comprising: a shutter plate; a groove formed in the shutter plate in the vertical direction; and a damper that slides in the groove.