JP6421324B2 - Air purifier - Google Patents

Description

  The present invention relates to an air cleaning device having a ventilation function attached to a ceiling, for example.

  The configuration of a conventional air cleaning device of this type has been as follows.

  That is, it has a substantially box-shaped main body case, air purifying means and a first fan arranged in the main body case, and a first main body outlet and a first main body inlet provided on the lower surface of the main body case. doing. The first main body suction port is provided on one side of the main body case, and the first main body outlet is provided on the other side of the main body case. The first fan includes a first casing portion, a first motor fixed to the first casing portion, and first blades driven by the first motor. The 1st casing part is provided with the 1st fan inlet provided in the 1st casing part, and the 1st fan blower outlet provided in the side of the 1st casing part. The first fan suction port communicates with the first main body suction port. The air cleaning means is provided in the air path between the first main body inlet and the first fan inlet. The first air outlet is configured to communicate with the first main body air outlet via a communication path (see, for example, Patent Document 1).

JP 2006-97998 A

  The problem with the conventional example is that it suppresses the decrease in the air volume.

  That is, the air purifier in the above-described conventional example changes the direction of the air blown horizontally from the first fan outlet provided on the side surface of the first casing part downward in the communication path to the lower surface of the main body case. It blows out from the provided 1st main body blower outlet. Thus, since the wind direction changes in the communication path, wind path resistance occurs and the air volume decreases.

  Therefore, the present invention aims to reduce the air path resistance and suppress the decrease in the air volume.

In order to achieve this object, according to the present invention, the air cleaning means is provided in an air passage between the first main body inlet and the first fan inlet, and the first fan blower is provided. The outlet communicates with the first main body outlet through a communication path, and the communication path extends from the first fan outlet to the other side horizontal direction of the main body case, and The first communication path includes a second communication path that extends obliquely downward on the other side of the main body case, and a third communication path that extends downward from the second communication path. An air passage that extends obliquely downward on the other side of the main body case from the main body outlet, the second communication path includes a wind direction plate, and the wind direction plate has a plate shape that extends in the vertical direction. A surface opposed to the first fan outlet, and an upper end of the wind direction plate and a second ream A space is provided between the first casing portion and the first casing portion. The first casing portion is provided with a second tongue portion on a side surface of the first casing portion on one side of the first casing portion. An extended wind direction plate extending downward from the lower end of the wind direction plate on the other side is provided, thereby achieving the initial purpose.

As described above, according to the present invention, the air cleaning means is provided in an air passage between the first main body inlet and the first fan inlet, and the first fan outlet is The first main body outlet communicates with the first passage through the communication passage, and the first passage extends from the first fan outlet to the other side horizontal direction of the main body case, and the first passage The first main body outlet includes a second communication path extending obliquely downward from the communication path to the other side of the main body case, and a third communication path extending downward from the second communication path. From the main body case, the second communication path includes a wind direction plate, and the wind direction plate has a plate shape extending in the vertical direction. It has a surface facing the fan outlet, and a space is formed between the upper end of the wind direction plate and the second communication passage. The first casing part is provided with a second tongue on a side surface of the first casing part on one side of the first casing part, and the wind direction plate on the other side of the first casing part. Since it was provided with the extended wind direction board extended below from the lower end of this, the fall of an air volume can be suppressed.

  That is, in the present invention, the second communication path includes a wind direction plate, and the wind direction plate has a plate shape extending in the vertical direction and has a surface facing the first fan outlet, Since the space is provided between the second communication path, the airflow can be dispersed on one side and the other side of the wind direction plate, and the airflow is suppressed from being biased to a part of the communication path. The resistance can be reduced and the decrease in the air volume can be suppressed.

The figure which shows the installation state of the air purifying apparatus of embodiment of this invention. Development view of the air purifier The figure which shows the inside of the air cleaner Cross section of the air cleaning device The figure which shows the inside of the air cleaner

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  Drawing 1 is a figure showing the installation state of the air cleaner of an embodiment. FIG. 2 is a development view of the air cleaning device of the embodiment. FIG. 2 is a development view in which the louver and the air cleaning means are removed in a state viewed from obliquely below the main body case.

  As shown in FIG. 1 and FIG. 2, the present invention relates to an air purifier that is embedded in a ceiling and has a ventilation function.

  The air purifier is provided with a louver 2 below a substantially box-shaped main body case 1 that is square when viewed from below, and in the main body case 1, an air purifying means 5, a first fan 3 described later, And a second fan 4.

  The air purifier is inserted and installed behind the ceiling 6. The main body case 1 has a substantially box shape with a small thickness in the vertical direction and an open bottom surface, and a horizontal sectional shape is a quadrangle.

  The opening on the lower surface of the main body case 1 is provided with a case lower surface cover 8 that is mounted so as to close the opening. The case lower surface cover includes a first main body suction port 9, a second main body suction port 10, and a first main body outlet 11. A second main body outlet 12 is provided on the other side surface of the main body case 1. The second main body outlet 12 is connected to a duct 13 communicating with the outdoors.

  The louver 2 includes a first louver inlet 2A, a second louver inlet 2B, and a first louver outlet 2C. The first louver inlet 2A communicates with the first main body inlet 9, the second louver inlet 2B communicates with the second main body inlet 10, and the first louver outlet 2C 1 main body outlet 11.

  Drawing 3 is a figure showing the inside of the air purification device of an embodiment. FIG. 3 shows the main body case as viewed from below. FIG. 4 is a cross-sectional view of the air cleaning device of the embodiment.

  As shown in FIGS. 3 and 4, the lower end side of the main body case 1 is provided with a flange portion 7 extending outward. The main body case 1 is inserted into a square hole 6 </ b> A opened in the ceiling 6, and is fixed to the ceiling 6 with a screw via a flange portion 7. The flange portion 7 is covered with a case lower surface cover 8.

  The second fan 4 includes a second casing portion 14, a second blade 15 disposed in the second casing portion 14, and a second motor 16 that drives the second blade 15. Have.

  The second motor 16 includes a second motor rotating shaft 17 that extends downward from the lower surface of the second motor 16. The second blade 15 is fixed to the second motor rotating shaft 17. An example of the second blade 15 is a sirocco fan.

  The second casing part 14 has a second fan inlet (not shown) and a second fan outlet 19. The second fan suction port communicates with the second main body suction port 10, and the second fan outlet 19 communicates with the second main body outlet 12. The second fan suction port is provided on the other side (lower side in FIG. 3) of the main body case 1 facing the first.

  When the second motor 16 drives the second blade 15, indoor air is sucked into the main body case 1 from the second louver inlet 2 </ b> B of the louver 2. The sucked air enters the second casing portion 14 via the second fan inlet, and communicates with the outside from the second main body outlet 12 via the second fan outlet 19. 13 is blown. That is, indoor air is ventilated to the outdoors.

  As shown in FIGS. 2, 3, and 4, the case lower surface cover 8 has a first main body on the lower surface of one side (left side in FIG. 4, upper side in FIG. 3) facing the first in the main body case 1. The first main body outlet 11 has a suction port 9 and a second main body suction port 10 on the lower surface of the other side (the right side in FIG. 4 and the lower side in FIG. 3) of the main body case 1 facing the first. It has.

  The first fan 3 includes a first casing portion 20, a first blade 21 disposed in the first casing portion 20, and a first motor 22 that drives the first blade 21. Have.

  The first motor 22 includes a first motor rotating shaft 23 that extends downward from the lower surface of the first motor 22. The first blade 21 is fixed to the first motor rotating shaft 23. An example of the first blade 21 is a sirocco fan.

  The first casing portion 20 is provided with a first fan suction port 24 on the lower surface. On the side surface of the first casing portion 20, there is a first fan outlet 25 that opens to the other side of the main body case 1 that faces the first side.

  A first fan suction port 24 is provided above the first main body suction port 9, and the first fan suction port 24 communicates with the first main body suction port 9. An air cleaning means 5 is provided in the air path between the first fan inlet 24 and the first main body inlet 9. One example of the air cleaning means 5 is a dust collecting filer.

  A first fan air outlet 25 is provided above the first main body air outlet 11, and the first fan air outlet 25 communicates with the first main body air outlet 11 via a communication path 26. . The communication path includes a first communication path 27 extending in the first horizontal direction opposite to the first from the first fan outlet 25 and an obliquely downward direction on the other side facing the first from the first communication path 27. The second communication path 28 extends and the third communication path 29 extends downward from the second communication path.

  The first louver outlet 2 </ b> C of the louver 2 has an air passage 35 extending obliquely downward on the other side facing the first from the third communication passage.

  When the first blades 21 are driven by the first motor 22, indoor air passes from the first louver suction port 2 </ b> A of the louver 2 through the air cleaning means 5 provided in the first main body suction port 9. Is sucked into the main body case 1. The sucked air enters the first casing part 20 from the first fan suction port 24, and passes through the first fan blower outlet 25 and the first louver blower outlet 2C of the louver 2 to form the first air. Air is blown into the room from the main body inlet 9. That is, indoor air is circulated through the air cleaning means 5.

  The feature of this embodiment is that the second communication passage 28 includes a wind direction plate 30, and the wind direction plate 30 has a plate shape extending in the vertical direction and has a surface facing the first fan outlet 25. The space 31 is provided between the upper end of the plate 30 and the second communication path 28.

  Thereby, the air that has passed through the first communication path 27 is divided into the first airflow A and the second airflow B on one side and the other side of the wind direction plate 30. That is, the first airflow A hits the first side surface of the wind direction plate 30 that faces the first side, flows through the second communication path 28 along this side surface, and passes through the third communication path 29 through the first communication path 29. 1 to the main body outlet 11. The second air flow B passes through the space 31 between the upper end of the airflow direction plate 30 and the second communication path 28, and then passes through the second communication path 28 and the third communication path 29, to the first main body. It flows to the blower outlet 11. Note that the air volume of the first air stream A is larger than the air volume of the second air stream B.

  In this manner, when the wind direction plate 30 is provided and the wind direction plate 30 is not provided by dispersing the first air flow A and the second air flow B on one side and the other side of the wind direction plate 30. In comparison, it is considered that the airflow can be prevented from being biased to a part of the communication path 26, the air path resistance can be reduced, and the decrease in the air volume can be suppressed. The airflow is divided into a first airflow A that passes through one side of the wind direction plate 30 and a second airflow B that passes through the other side of the wind direction plate 30. The one side of the wind direction plate 30 is the upstream side of the wind direction plate 30 in the blowing direction from the first fan outlet 25, and the other side of the wind direction plate 30 is the air blowing from the first fan outlet 25. Direction of the wind direction plate 30 in the downstream.

  Furthermore, it is considered that the first airflow A hits the wind direction plate 30 and flows along the wind direction plate 30 to be rectified in the direction of the first main body outlet 11 to obtain a rectification effect.

  Further, the distance between the wind direction plate 30 and the second communication passage 28 on the other side facing the first is larger than the distance between the upper end of the wind direction plate 30 and the second communication passage 28.

  As a result, the second air flow B passes through the space 31 between the upper end of the wind direction plate 30 and the second communication path 28 and then the wind speed decreases due to the expansion of the space. 1 can reduce energy loss that occurs at the time of a collision with the side surface on the other side opposite to 1.

  Moreover, the lower part of the 2nd communicating path 28 and the upper part of the 3rd communicating path 29 swell to the other side which opposes 1st.

  Thereby, after the 2nd airflow B passes the space 31 between the upper end of the wind direction board 30 and the 2nd communicating path 28, the 2nd communicating path 28 which is the other side surface which opposes 1st is carried out. Since it flows along the lower part and the upper part of the third communication passage 29, the space can be expanded to the maximum and the flow of the wind can be made easy to flow. In addition, the second air flow B flows along the lower part of the second communication path 28 and the upper part of the third communication path 29 which are the other side surfaces facing the first, and then the first air flow B faces the first. It flows to the 1st main body blower outlet 11 with the 1st airflow A. Thereby, it is thought that the 2nd airflow B is rectified in the direction of the 1st main body blower outlet 11, and the rectification effect is acquired.

  FIG. 5 is a diagram illustrating the inside of the air cleaning device according to the embodiment. As shown in FIGS. 3 and 5, the first casing portion 20 is provided with a first tongue portion 33 on the side surface of the first casing portion 20 on the one side facing the second, and the other facing the second side. An extended wind direction plate 34 extending downward from the lower end 32 of the side wind direction plate is provided.

  Thus, since the 1st tongue part 33 is provided in the side surface of the 1st casing part 20 of the one side opposite to the 2nd, the 1st casing part 20 blows off from the 1st fan blower outlet 25. The air thus made tends to flow toward the first tongue 33 side. That is, it tends to flow mainly to the one side facing the second. Here, when the extended wind direction plate 34 extending downward from the lower end of the second opposite wind direction plate is provided, a part of the airflow flowing along one surface of the wind direction plate 30 is further transferred to the extended wind direction plate 34. Flowing along. This airflow flows more in the downward direction than the airflow that does not flow along the extended wind direction plate 34 and easily flows to the other side facing the first. As a result, it becomes easier to exit from the entire first main body outlet 11 more uniformly.

  As described above, according to the present invention, the air cleaning means is provided in an air passage between the first main body inlet and the first fan inlet, and the first outlet is A first main passage extending in the other horizontal direction facing the first from the first outlet, and the first communication passage. The first main body outlet comprises a second communication passage extending obliquely downward from the passage on the other side and facing the first side, and a third communication passage extending downward from the second communication passage. The second communication passage includes a wind direction plate, and the wind direction plate has a plate shape extending in the vertical direction. And a space is provided between the upper end of the wind direction plate and the second communication passage, so that the air volume is low. It is possible to suppress.

  That is, in the present invention, the second communication path includes a wind direction plate, and the wind direction plate has a plate shape extending in the vertical direction and has a surface facing the first fan outlet, Since the space is provided between the second communication path, the airflow can be dispersed on one side and the other side of the wind direction plate, and the airflow is suppressed from being biased to a part of the communication path. The resistance can be reduced and the decrease in the air volume can be suppressed.

  Therefore, it is expected to be widely used for air purifiers having a ventilation function attached to the ceiling for home use and business use.

DESCRIPTION OF SYMBOLS 1 Main body case 2 Louver 2A 1st louver suction port 2B 2nd louver suction port 2C 1st louver blower outlet 3 1st fan 4 2nd fan 5 Air cleaning means 6 Ceiling 6A hole 7 Flange part 8 Case lower surface Cover 9 First main body inlet 10 Second main body inlet 11 First main body outlet 12 Second main body outlet 13 Duct 14 Second casing portion 15 Second blade 16 Second motor 17 Second Motor rotating shaft 19 second fan outlet 20 first casing part 21 first blade 22 first motor 23 first motor rotating shaft 24 first fan inlet 25 first fan outlet 26 Passage 27 first communication passage 28 second communication passage 29 third communication passage 30 wind direction plate 31 space 32 lower end portion 33 first tongue portion 34 extended wind direction plate 35 air flow path A first air flow B second air flow

Claims (3)

A substantially box-shaped main body case that is square when viewed from below,
An air cleaning means and a first fan disposed in the main body case;
A first main body outlet and a first main body inlet provided on the lower surface of the main body case;
The first main body suction port is provided on one side of the main body case,
The first main body outlet is provided on the other side of the main body case,
The first fan is
A first casing part;
A first motor fixed to the first casing portion;
A first blade driven by the first motor,
The first casing portion is
A first fan inlet provided in the first casing portion;
A first fan outlet provided on a side surface of the first casing portion;
The first fan suction port communicates with the first main body suction port,
The air cleaning means is provided in an air path between the first main body inlet and the first fan inlet.
The first fan outlet is in communication with the first main body outlet via a communication path;
The communication path is
A first communication path extending in the other side horizontal direction in the main body case from the first fan outlet;
A second communication path extending obliquely downward on the other side of the main body case from the first communication path;
A third communication path extending downward from the second communication path,
A fan passage extending from the first main body outlet to the other side obliquely downward in the main body case;
The second communication path includes a wind direction plate,
The wind direction plate has a surface facing the first fan outlet in a plate shape extending in the vertical direction, and includes a space between the upper end of the wind direction plate and the second communication path,
The first casing portion is provided with a second tongue portion on a side surface of the first casing portion on one side of the first casing portion, and a lower end of the wind direction plate on the other side of the first casing portion. An air cleaning device comprising an extended wind direction plate extending downward from the air. The distance between the lower end portion of the wind direction plate and the third communication path on the other side of the main body case is larger than the distance between the lower end portion of the wind direction plate and the third communication path on one side of the main body case. The air purifier according to claim 1. The air purifier according to claim 1 or 2, wherein a lower part of the second communication path and an upper part of the third communication path swell to the other side of the main body case.

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