CN112204311A - Air suction and exhaust device and air conditioner - Google Patents
Air suction and exhaust device and air conditioner Download PDFInfo
- Publication number
- CN112204311A CN112204311A CN201980036955.3A CN201980036955A CN112204311A CN 112204311 A CN112204311 A CN 112204311A CN 201980036955 A CN201980036955 A CN 201980036955A CN 112204311 A CN112204311 A CN 112204311A
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- Prior art keywords
- intake
- exhaust
- air
- exhaust port
- suction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0035—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0041—Indoor units, e.g. fan coil units characterised by exhaustion of inside air from the room
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Flow Control Members (AREA)
Abstract
Miniaturization can be achieved. The air suction and exhaust device (21) can be switched to a suction state and an exhaust state. In the air intake state, the air intake/exhaust port (36d) on the medium pressure side and the air intake port (36b) on the low pressure side can be ventilated, and the air intake/exhaust port (36d) and the air intake port (36b) and the air exhaust port (36a) on the high pressure side cannot be ventilated; in this exhaust state, the air intake/exhaust port (36d) and the air exhaust port (36a) can be ventilated, and the air intake/exhaust port (36d), the air exhaust port (36a) and the air intake port (36b) cannot be ventilated.
Description
Technical Field
The present invention relates to an air intake/exhaust device having a ventilation function, and an air conditioner including the air intake/exhaust device.
Background
Conventionally, an air conditioner having a ventilation function of outside air and indoor air is known. The air conditioner disclosed in patent document 1 includes a ventilation device as an air suction/exhaust device inside an indoor unit. The ventilator includes a centrifugal fan, and discharges air sucked from the suction port to the outside of the room through an exhaust duct by rotation of the centrifugal fan.
The air conditioner disclosed in patent document 2 includes an air blower as an air intake/exhaust device inside the indoor unit. The air blowing device has a centrifugal fan, discharges indoor air to the outside of the room by rotation of the centrifugal fan, and introduces outdoor air to the inside of the room.
Documents of the prior art
Patent document
Disclosure of Invention
Problems to be solved by the invention
However, in the above-described conventional structure, the air suction and exhaust device needs to be provided with a dedicated centrifugal fan and a fan motor for rotating the centrifugal fan. In addition, the fan motor requires a large amount of power, and thus is a large-sized device. Therefore, the size of the air suction and exhaust device increases, and a large installation space for the air suction and exhaust device is required inside the indoor unit of the air conditioner.
An object of one aspect of the present invention is to provide a suction/exhaust device that can be reduced in size and installation space, and an air conditioner provided with the suction/exhaust device.
Means for solving the problems
In order to solve the above-described problems, an air suction/discharge device according to one aspect of the present invention is mounted in an indoor unit of an air conditioner including an air supply fan, and a high pressure region, a low pressure region, and a medium pressure region that are opposed to each other by rotation of the air supply fan, and includes a casing portion having an internal space, wherein the casing portion includes a state switching member having an exhaust port that is disposed so as to be capable of communicating with the high pressure region, an intake port that is disposed so as to be capable of communicating with the low pressure region, and an air suction/discharge port that is disposed so as to be capable of communicating with the medium pressure region, the state switching member being switchable between a normal state, an air suction state, and an air discharge state, and among the exhaust port, the intake port, and the intake port, the exhaust port, and the air suction/discharge port are not allowed to communicate with each other through the internal, in the intake state, only the intake/exhaust port and the intake port may communicate with each other through the internal space, and in the exhaust state, only the intake/exhaust port and the exhaust port may communicate with each other through the internal space.
Advantageous effects
According to one aspect of the present invention, the air suction and exhaust device can be miniaturized, and the installation space of the air suction and exhaust device can be reduced.
Drawings
Fig. 1 is a front view of an indoor unit of an air conditioner according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view taken along line a-a in fig. 1 of the indoor unit.
Fig. 3 is a cross-sectional view taken along line B-B in fig. 1 of the indoor unit.
Fig. 4 is a cross-sectional view taken along line C-C in fig. 1 of the indoor unit.
Fig. 5 (a) is a plan view of the air suction/discharge device provided in the indoor unit; fig. 5 (b) is a side view of the air suction/discharge device.
Fig. 6 (a) is a perspective view of the air intake and exhaust device shown in fig. 5 (a) and (b); fig. 6 (b) is an exploded perspective view of the air intake and exhaust device shown in fig. 6 (a).
Fig. 7 (a) is a perspective view of the air intake and exhaust device 21 shown in fig. 5 (a) and (b) when viewed from the opposite direction to fig. 6 (a); fig. 7 (b) is an exploded perspective view of the air intake and exhaust device 21 shown in fig. 7 (a).
Fig. 8 is a perspective view of the indoor unit main body of the indoor unit, in which the air suction/discharge device is provided, as viewed from the front.
Fig. 9 is a perspective view of the indoor unit main body of the indoor unit, in which the air suction/discharge device is provided, as viewed from above.
Fig. 10 is a perspective view of the indoor unit main body of the indoor unit, in which the air suction/discharge device is provided, as viewed from the rear.
Fig. 11 (a) is a front view of the air suction/discharge device in a normal mode, and fig. 11 (b) is a cross-sectional view taken along line D-D of fig. 11 (a).
Fig. 12 (a) is a front view of the air suction/discharge device showing an air suction mode, and fig. 12 (b) is a cross-sectional view taken along line E-E in fig. 12 (a).
Fig. 13 (a) is a front view of the air suction/discharge device showing a discharge mode, and fig. 13 (b) is a cross-sectional view taken along line F-F in fig. 13 (a).
Fig. 14 is a block diagram showing a configuration of a control device of an air conditioner according to the present embodiment.
Fig. 15 is a cross-sectional view taken along line C-C in fig. 1 in the state of the indoor unit suction mode.
Fig. 16 is a cross-sectional view taken along line C-C in fig. 1 in the state of the air discharge mode of the indoor unit.
Fig. 17 (a) is a perspective view of a suction/exhaust device according to another embodiment of the present invention;
fig. 17 (b) is an exploded perspective view of the air intake and exhaust device shown in fig. 17 (a).
Fig. 18 (a) is a perspective view of a suction/exhaust device according to still another embodiment of the present invention; fig. 18 (b) is an exploded perspective view of the air intake and exhaust device shown in fig. 18 (a).
Fig. 19 (a) is a plan view showing a state of a normal mode of the air suction/discharge device according to the further embodiment of the present invention; fig. 19 (b) is a front view of the air suction and exhaust device shown in fig. 19 (a); FIG. 19 (c) is a sectional view taken along line K-K in FIG. 19 (b) of the air suction/discharge device; fig. 19 (d) is a side view of the air intake and exhaust device shown in fig. 19 (b).
Fig. 20 (a) is a plan view showing a state of an intake mode of the air intake/exhaust device shown in fig. 19 (a); fig. 20 (b) is a front view of the air suction and exhaust device shown in fig. 20 (a); FIG. 20 (c) is a sectional view taken along line J-J in FIG. 20 (b) of the air suction/discharge device; fig. 20 (d) is a side view of the air intake and exhaust device shown in fig. 20 (b).
Fig. 21 (a) is a plan view showing a state of an exhaust mode of the air suction/exhaust device shown in fig. 19 (a); fig. 21 (b) is a front view of the air suction and exhaust device shown in fig. 21 (a); FIG. 21 (c) is a sectional view taken along line J-J in FIG. 21 (b) of the air suction/discharge device; fig. 21 (d) is a side view of the air intake and exhaust device shown in fig. 21 (b).
Detailed Description
[ first embodiment ]
Embodiments of the present invention are described below with reference to the drawings.
(construction of indoor machine 1)
Fig. 1 is a front view of an indoor unit 1 of an air conditioner according to the present embodiment. Fig. 2 is a sectional view of the indoor unit 1 taken along line a-a in fig. 1. Fig. 3 is a sectional view of the indoor unit 1 taken along line B-B in fig. 1. Fig. 4 is a cross-sectional view taken along line C-C in fig. 1 of the indoor unit 1.
As shown in fig. 1 to 4, an indoor unit (hereinafter simply referred to as an indoor unit) 1 of an air conditioner includes an air guide panel 3 on a front surface of an indoor unit main body 2. The indoor unit main body 2 has a suction port 11 at a lower portion, a blower fan 12 and a heat exchanger 13 inside, and a blowout port 14 at a front portion.
In the present embodiment, the blower fan 12 is a sirocco fan and is provided inside the fan cover member 15. A drain pan 16 is provided below the heat exchanger 13, and a filter 17 is provided inside (above) the suction port 11.
In the indoor unit 1, if the blower fan 12 rotates, air is sucked from the suction port 11 and blown to the heat exchanger 13 by the blower fan 12 through the filter 17. The air blown to the heat exchanger 13 passes through the heat exchanger 13 and is blown out from the air outlet 14.
Therefore, if the blower fan 12 is rotated, as shown in fig. 3, the area around the blower fan 12 becomes a low-pressure area 18 with a relatively low pressure in the indoor unit main body 2, and the area between the blower fan 12 and the heat exchanger 13 becomes a high-pressure area 19 with a relatively high pressure in the indoor unit main body 2.
As shown in fig. 2 and 4, two blower fans 12 are provided in total at the left and right positions of the indoor unit main body 2, and the blower fans 12 are driven by one fan motor 20 provided between the two blower fans 12. The fan motor 20 is a two-shaft motor having drive shafts on the left and right sides, and these drive shafts are connected to the shafts of the left and right blower fans 12.
(construction of air suction/exhaust device 21)
Fig. 5 (a) is a plan view of the air suction/discharge device 21 provided in the indoor unit 1, and fig. 5 (b) is a side view of the air suction/discharge device 21. Fig. 6 (a) is a perspective view of the air intake and exhaust device 21 shown in fig. 5 (a) and (b), and fig. 6 (b) is an exploded perspective view of the air intake and exhaust device 21 shown in fig. 6 (a). Fig. 7 (a) is a perspective view of the air intake and exhaust device 21 shown in fig. 5 (a) and (b) viewed from a direction opposite to fig. 6 (a), and fig. 7 (b) is an exploded perspective view of the air intake and exhaust device 21 shown in fig. 7 (a). Fig. 8 is a perspective view of the indoor unit main body 2 when the portion where the air suction/discharge device 21 is provided is viewed from the front. Fig. 9 is a perspective view of the indoor unit main body 2 when the portion where the air suction/discharge device 21 is provided is viewed from above. Fig. 10 is a perspective view of the indoor unit main body 2 when a portion where the air suction/discharge device 21 is provided is viewed from behind. Fig. 11 (a) is a front view showing the suction/exhaust device 21 in the normal mode, and fig. 11 (b) is a cross-sectional view taken along line D-D in fig. 11 (a). Fig. 12 (a) is a front view of the air suction/discharge device 21 showing an air suction mode, and fig. 12 (b) is a cross-sectional view taken along line E-E in fig. 12 (a). Fig. 13 (a) is a front view of the air suction/discharge device 21 showing the air discharge mode, and fig. 13 (b) is a cross-sectional view taken along line F-F in fig. 13 (a).
As shown in fig. 2 and 4, the indoor unit 1 includes an air suction/discharge device 21 in the indoor unit main body 2. The air suction/discharge device 21 is provided at one end in the left-right direction of the indoor unit main body 2. As shown in fig. 5 (a) and (b) to fig. 7 (a) and (b), the intake/exhaust device 21 includes a switching motor 31, a main case portion 32, a sub case portion 33, a rotation switching member 34 (see fig. 6 (b) and fig. 7 (b)), and an intake/exhaust pipe 35.
The switching motor 31 is constituted by, for example, a stepping motor, and rotates the rotation switching member 34. The switching motor 31 is fixed to the case sub-portion 33. The main case portion 32 and the sub case portion 33 can be fitted to each other, and a suction/exhaust case (case portion) 36 of the suction/exhaust device 21 is formed by fitting. The side surface of the main case portion 32 has a suction/exhaust port 36d, and the suction/exhaust pipe 35 is connected to the suction/exhaust port 36 d.
The suction/exhaust case 36 has an exhaust port 36a and an intake port 36b (see fig. 6 (b) and 7 (b)). The air outlet 36a is an inlet for the indoor air into the air intake/exhaust case 36, that is, an outlet for the indoor air (air inside the indoor unit 1) to the outside. The inlet port 36b is an outlet port for the outdoor air from the inside of the suction/discharge casing 36, that is, an inlet port for the outdoor air to the indoor space (inside of the indoor unit 1).
The rotation switching member 34 is disposed inside the suction/exhaust case 36 and is driven to rotate by the switching motor 31. As shown in fig. 6 (b) and 7 (b), the rotation switching member 34 includes an exhaust port/intake port opening/closing portion 34a that opens and closes the exhaust port 36a and the intake port 36b in response to rotation of the rotation switching member 34, and an intake/exhaust port opening/closing portion 34b that opens and closes the intake/exhaust port 36 d. The rotation switching member 34 includes a partition portion 34c (see fig. 7 b and 11 b).
When the outer periphery of the rotation switching member 34 is assumed to be cylindrical, the exhaust/intake opening/closing portion 34a has a shape corresponding to a cylindrical portion of 1/4 circles. The intake/exhaust port opening/closing portion 34b has a fan-shaped flat plate shape with a center angle of 90 ° at a position adjacent to the exhaust port/intake port opening/closing portion 34a at the end portion of the rotation switching member 34 on the side of the case main portion 32. The partition portion 34c is a flat plate-like plate portion that passes through the center of the rotation switching member 34 and extends in the axial direction of the rotation switching member 34. The partition portion 34c partitions the interior of the rotation switching member 34 into a region where the exhaust port/intake port opening/closing portion 34a and the intake/exhaust port opening/closing portion 34b are present and a region where the exhaust port/intake port opening/closing portion 34a and the intake/exhaust port opening/closing portion 34b are not present.
Thus, the rotation switching member 34 can take the normal mode position (normal state), the intake mode position (intake state), and the exhaust mode position (exhaust state) by rotating.
The normal mode position is a position where the exhaust port 36a is closed by the exhaust port/intake port opening/closing unit 34a, the intake/exhaust port 36d is closed by the intake/exhaust port opening/closing unit 34b, and the intake port 36b is opened (see fig. 11 (b)).
The intake mode position is a position where the exhaust port/intake port opening/closing unit 34a is rotated 90 ° from the normal mode position to allow the air intake/exhaust port 36d and the air intake port 36b to pass through, and to block the air flow through the exhaust port 36a, the air intake/exhaust port 36d, and the air intake port 36b (see fig. 12 (b)).
The exhaust mode position is a position where the exhaust port/intake port opening/closing unit 34a is rotated 90 ° in the same direction from the intake mode position to allow the exhaust port 36a and the intake/exhaust port 36d to communicate with each other, and the partition unit 34c blocks the communication between the exhaust port 36a, the intake/exhaust port 36d, and the intake port 36b (see fig. 13 (b)).
(control device of air conditioner)
Fig. 14 is a block diagram showing a configuration of a control device of an air conditioner according to the present embodiment. As shown in fig. 14, the control device of the air conditioner includes a control unit 41 and a storage unit 42, each of which is formed of a microcomputer, for example. The control unit 41 is connected to a receiving unit 43, and the receiving unit 43 receives a command from a remote controller (hereinafter simply referred to as a remote controller) 44 operated by a user. The remote controller 44 can set an air-conditioning mode for an air-conditioning apparatus including the indoor unit 1. In the remote controller 44, the indoor unit 1 can be set to a normal mode, an intake mode, and an exhaust mode as the intake/exhaust mode. The air conditioning mode is a mode for performing cooling, heating, or the like.
The control unit 41 controls the operations of the air conditioner 45, the fan motor 20, and the switching motor 31 in accordance with an instruction from the remote controller 44.
The air conditioner 45 is a part that performs a refrigeration cycle, and has a structure of an evaporator, a condenser, a compressor, and the like for performing the refrigeration cycle. The air conditioner unit 45 is configured to straddle the indoor unit 1 and the outdoor unit 46.
The storage unit 42 stores the control content for the switching motor 31 when the rotation switching member 34 of the air suction/exhaust device 21 is disposed at the normal mode position, the air suction mode position, and the exhaust mode position. The storage unit 42 stores the operation mode or temperature setting before the operation stop, and the operation mode or temperature setting set by the remote controller 44, under the control of the control unit 41.
(operation of air suction/discharge device 21 and indoor Unit 1)
In the above configuration, the operation of the air conditioner according to the present embodiment will be described below. Fig. 15 is a cross-sectional view taken along line C-C in fig. 1 in the state of the indoor unit 1 in the air intake mode. Fig. 16 is a cross-sectional view taken along line C-C in fig. 1 in the state of the air discharge mode of the indoor unit 1.
When the air conditioner is in the air conditioning mode, the air sending fan 12 rotates, so that the periphery of the air sending fan 12 becomes a low pressure region 18 and the space between the air sending fan 12 and the heat exchanger 13 becomes a high pressure region 19 as shown in fig. 4. This is as described above with reference to fig. 3. Further, the periphery of the air intake and exhaust pipe 35 of the air intake and exhaust device 21 is a medium pressure region (atmospheric pressure region) 37.
(general mode)
The air intake/exhaust mode of the indoor unit 1 (air intake/exhaust device 21) is a normal mode when the air conditioner is in the air-conditioning mode. In this case, as shown in fig. 11 (a) and (b), in the air intake and exhaust device 21, the rotation switching member 34 is driven by the switching motor 31 and rotates to the normal mode position. The rotation of the switching motor 31 is controlled by the control unit 41. This is also the same in the case of the intake mode and the exhaust mode.
In the normal mode position, the intake/exhaust device 21 blocks the intake port 36b by the exhaust port/intake port opening/closing portion 34a, blocks the intake/exhaust port 36d by the intake/exhaust port opening/closing portion 34b, and opens the intake port 36 b. Thus, in the indoor unit 1, as shown in fig. 4, the outdoor air suction and the indoor air discharge by the suction/discharge device 21 are not performed.
(suction mode)
The indoor unit 1 can set the air intake/exhaust mode to the air intake mode when the air-conditioning mode is stopped. However, the blower fan 12 rotates. In the intake mode, as shown in fig. 12 (a) and (b), in the intake/exhaust device 21, the rotation switching member 34 is driven by the switching motor 31 to rotate to the intake mode position.
In the intake mode position, the rotation switching member 34 allows ventilation of the intake and exhaust port 36d and the intake port 36b, and cuts off ventilation of the exhaust port 36a and the intake and exhaust port 36d and the intake port 36 b. Thus, in the indoor unit 1, as shown in fig. 15, the air in the intermediate-pressure region 37, that is, the outside air enters the interior of the intake/exhaust casing 36 through the intake/exhaust duct 35 and the intake/exhaust port 36d, and flows out to the low-pressure region 18 around the blower fan 12 through the intake port 36 b. The air is blown into the room from the air outlet 14 by the blower fan 12. In this way, in the intake mode, the outside air is taken into the indoor unit 1 through the intake/exhaust device 21 and supplied into the room.
(exhaust mode)
The indoor unit 1 can set the air intake/exhaust mode to the air exhaust mode when the air conditioning mode is stopped. However, the blower fan 12 rotates. In the exhaust mode, as shown in fig. 13 (a) and (b), the rotation switching member 34 is driven by the switching motor 31 and rotates to the exhaust mode position in the intake/exhaust device 21.
In the exhaust mode position, the rotation switching member 34 allows ventilation of the exhaust port 36a and the intake/exhaust port 36d, and cuts off ventilation of the exhaust port 36a and the intake/exhaust port 36d and the intake port 36b by the partition portion 34 c. Thus, in the indoor unit 1, as shown in fig. 16, air in the high-pressure region 19, that is, indoor air introduced into the indoor unit 1 from the suction port 11 enters the interior of the suction/discharge casing 36 through the discharge port 36a, and flows out to the intermediate-pressure region 37 through the suction/discharge port 36d and the suction/discharge pipe 35. In this way, in the air discharge mode, the air in the room is discharged to the outside of the room through the air suction and discharge device 21.
(advantages of suction/exhaust device 21 and indoor Unit 1)
The air suction and exhaust device 21 is configured to perform air suction and exhaust by using a pressure difference generated by the rotation of the blower fan 12, and does not require a dedicated fan for air suction and exhaust. This allows the air suction/discharge device 21 to reduce the installation space in the indoor unit 1. In addition, the air suction and exhaust device 21 may use a small stepping motor with a low torque as the switching motor 31 for rotating the rotation switching member 34 to a predetermined position according to the air suction and exhaust mode. Therefore, the installation space can be reduced. In addition, since the air suction and exhaust device 21 does not require a dedicated fan, and an inexpensive stepping motor can be used as the switching motor 31, a low-cost configuration can be realized. As described above, the indoor unit 1 including the air suction/discharge device 21 can be arranged in a small size and at low cost.
In the present embodiment, the air intake and exhaust device 21 has been described as a configuration for performing air intake and exhaust in a state where the air conditioning function of the air conditioner is stopped. However, if the blower fan 12 is rotated, the air suction and discharge device 21 can perform air suction or discharge. Therefore, the air suction/discharge device 21 may be configured to perform air suction or discharge in a state where the air conditioner performs an air conditioning function by rotating the blower fan 12. This point is also the same in other embodiments described below.
[ second embodiment ]
Other embodiments of the present invention will be described below with reference to the drawings. For convenience of explanation, members having the same functions as those described in the above embodiments are given the same reference numerals, and the explanation thereof will not be repeated.
(Structure of air suction/exhaust device 22)
Fig. 17 (a) is a perspective view of the air intake and exhaust device 22 according to the present embodiment, and fig. 17 (b) is an exploded perspective view of the air intake and exhaust device 22 shown in fig. 17 (a).
The indoor unit 1 of the present embodiment includes, instead of the air suction/discharge device 21, an air suction/discharge device 22 shown in fig. 17 (a) and (b). The air intake and exhaust device 21 directly transmits the driving force of the switching motor 31 to the rotation switching member 34, thereby rotating the rotation switching member 34. On the other hand, the suction/exhaust device 22 transmits the driving force of the switching motor 31 to the rotation switching member 34 via the first gear 51 and the second gear 52 that mesh with each other, and rotates the rotation switching member 34. Therefore, in the air suction/exhaust device 22, the drive shaft of the switching motor 31 is fitted in the shaft hole of the first gear 51, and the central shaft 34d of the rotation switching member 34 is fitted in the shaft hole of the second gear 52.
The case sub 33 has an extended portion 33a extending upward at an upper portion, and the extended portion 33a covers the tooth surface of the first gear 51. The switching motor 31 is fixed to the extension 33 a. Further, the width of the case sub 33 in the axial direction is larger than the case sub 33 of the air suction and exhaust device 21, so that the first gear 51 and the second gear 52 can be housed inside the case sub 33. The other structure of the air suction and exhaust device 22 is the same as that of the air suction and exhaust device 21.
The operation of the indoor unit 1 provided with the air suction/discharge device 22 and the advantages of the indoor unit 1 provided with the air suction/discharge device 22 and the air suction/discharge device 22 are similar to those of the air suction/discharge device 21.
[ third embodiment ]
Further embodiments of the present invention will be described below with reference to the drawings. For convenience of explanation, members having the same functions as those described in the above embodiments are given the same reference numerals, and the explanation thereof will not be repeated.
(Structure of air suction/exhaust device 23)
Fig. 18 (a) is a perspective view of the air intake and exhaust device 23 according to the present embodiment, and fig. 18 (b) is an exploded perspective view of the air intake and exhaust device 23 shown in fig. 18 (a).
The indoor unit 1 of the present embodiment includes, instead of the air suction/discharge device 21, an air suction/discharge device 23 shown in fig. 18 (a) and (b). The air intake and exhaust device 21 directly transmits the driving force of the switching motor 31 to the rotation switching member 34, thereby rotating the rotation switching member 34. On the other hand, the air intake and exhaust device 23 transmits the driving force of the switching motor 31 to the rotation switching member 34 via the first gear 51, the second gear 52, and the third gear 53 between the first gear 51 and the second gear 52, and rotates the rotation switching member 34. Therefore, in the air suction/exhaust device 23, the drive shaft of the switching motor 31 is fitted in the shaft hole of the first gear 51, the central shaft 34d of the rotation switching member 34 is fitted in the shaft hole of the second gear 52, and the third gear 53 meshes with the first gear 51 and the second gear 52.
The case sub 33 has an extended portion 33a extending upward at an upper portion, and the extended portion 33a covers tooth surfaces from the first gear 51 to the third gear 53. The switching motor 31 is disposed on the side of the case main portion 32, unlike the air suction/exhaust device 22. The other structure of the air suction and exhaust device 23 is the same as that of the air suction and exhaust device 21.
The operation of the indoor unit 1 provided with the air suction/discharge device 23 and the advantages of the indoor unit 1 provided with the air suction/discharge device 23 and the air suction/discharge device 23 are the same as those of the air suction/discharge device 21.
[ fourth embodiment ]
Further embodiments of the present invention will be described below with reference to the drawings. For convenience of explanation, members having the same functions as those described in the above embodiments are given the same reference numerals, and the explanation thereof will not be repeated.
(Structure of air suction/exhaust device 24)
Fig. 19 (a) is a plan view of a state of the normal mode of the air intake and exhaust device 24 according to the present embodiment, fig. 19 (b) is a front view of the air intake and exhaust device 24 shown in fig. 19 (a), fig. 19 (c) is a cross-sectional view of the air intake and exhaust device 24 taken along line K-K in fig. 19 (b), and fig. 19 (d) is a side view of the air intake and exhaust device 24 shown in fig. 19 (b). Fig. 20 (a) is a plan view showing a state of an intake mode of the intake/exhaust device 24 according to the present embodiment, fig. 20 (b) is a front view of the intake/exhaust device 24 shown in fig. 20 (a), fig. 20 (c) is a cross-sectional view taken along line J-J in fig. 20 (b) of the intake/exhaust device 24, and fig. 20 (d) is a side view of the intake/exhaust device 24 shown in fig. 20 (b). Fig. 21 (a) is a plan view showing a state of the air suction/discharge device 24 of the present embodiment in the air discharge mode, fig. 21 (b) is a front view of the air suction/discharge device 24 shown in fig. 21 (a), fig. 21 (c) is a cross-sectional view taken along line J-J in fig. 21 (b) of the air suction/discharge device 24, and fig. 21 (d) is a side view of the air suction/discharge device 24 shown in fig. 21 (b).
The indoor unit 1 of the present embodiment includes a suction/discharge device 24 shown in fig. 19, instead of the suction/discharge device 21. The air suction and exhaust device 24 includes an outer cylindrical portion (casing portion) 61 and an inner cylindrical portion (casing portion) 62. The inner tube portion 62 is fitted inside the outer tube portion 61, and the outer tube portion 61 and the inner tube portion 62 are relatively slidable in the axial direction. One end portion in the axial direction of the outer cylinder portion 61 is a stopper portion 61a, and similarly, an end portion of the inner cylinder portion 62 located on the same side as the stopper portion 61a of the outer cylinder portion 61 is a stopper portion 62 a.
As shown in fig. 19 (c), an outer cylinder air inlet 61b is formed in the peripheral wall portion (wall portion of the cylindrical portion) of the outer cylinder portion 61 at a position on the side of the axial closing portion 61a, and an outer cylinder air outlet 61c is formed at a position on the opposite side of the axial closing portion 61 a. The outer cylinder inlet 61b and the outer cylinder outlet 61c are spaced apart by, for example, 180 ° in the outer circumferential direction of the side surface.
On the other hand, as shown in fig. 19 (c), an inner cylinder air inlet 62b and an inner cylinder air outlet 62c are formed in the side surface (outer circumferential surface) of the inner cylinder portion 62 at positions on the side of the blocking portion 62a in the axial direction. The inner cylinder air inlet 62b communicates with (can be vented to) the outer cylinder air inlet 61b of the outer cylinder 61 when the inner cylinder 62 slides inside the outer cylinder 61. When the inner cylinder 62 slides outward of the outer cylinder 61, the inner cylinder outlet 62c communicates with (can be vented to) the outer cylinder outlet 61c of the outer cylinder 61. The open-side end of the inner tube 62 serves as an intake/exhaust port 62 d.
When the correspondence between the respective parts of the air suction/discharge device 24 and the respective parts of the air suction/discharge device 21 is shown, the outer cylinder inlet 61b corresponds to the inlet 36b, the outer cylinder outlet 61c corresponds to the outlet 36a, and the air suction/discharge port 62d corresponds to the inlet 36 d. The inner cylinder portion 62 corresponds to the switching member 34. Therefore, for example, in the indoor unit 1 shown in fig. 4, the suction/exhaust device 24 is arranged such that the outer tube suction port 61b is located in the low pressure region 18 and the outer tube discharge port 61c is located in the high pressure region 19. The suction/exhaust pipe 35 is connected to the suction/exhaust port 62d, and an end of the suction/exhaust pipe 35 is disposed in the intermediate pressure region 37.
The relative sliding of the outer cylinder 61 and the inner cylinder 62 can be performed by a solenoid, a motor, a rack gear, and a pinion as a driving unit. Therefore, the switching motor 31 shown in fig. 14 can be understood as a driving portion of the air suction and exhaust device 24.
In the present embodiment, the outer cylinder 61 and the inner cylinder 62 are cylindrical, but are not limited to cylindrical shapes as long as they are cylindrical.
(advantages of the suction/exhaust device 24 and the indoor unit 1)
The air suction and exhaust device 24 includes an outer cylinder portion 61 and an inner cylinder portion 62, and is a very simple structure for switching the air suction and exhaust mode by sliding the outer cylinder portion 61 and the inner cylinder portion 62 relative to each other. Thereby, the air intake and exhaust device 24 can reduce the installation space, and can be a low-cost configuration, as with the air intake and exhaust device 21. Therefore, the indoor unit 1 including the air suction/discharge device 24 can be arranged in a small size and at low cost.
[ conclusion ]
An air intake/exhaust device according to a first aspect of the present invention is an air intake/exhaust device installed in an indoor unit of an air conditioner including an air blower fan, and a high pressure region, a low pressure region, and a medium pressure region that are opposed to each other by rotation of the air blower fan, and including a casing having an internal space, wherein the casing includes a state switching member having an exhaust port that is disposed so as to be able to communicate with the high pressure region, an intake port that is disposed so as to be able to communicate with the low pressure region, and an intake/exhaust port that is disposed so as to be able to communicate with the medium pressure region, the state switching member being switchable between a normal state, an intake state, and an exhaust state, and among the exhaust port, the intake port, and the intake port, the exhaust port, and the internal space are not allowed to communicate with each other in the normal state, in the intake state, only the intake/exhaust port and the intake port may communicate with each other through the internal space, and in the exhaust state, only the intake/exhaust port and the exhaust port may communicate with each other through the internal space.
The air intake and exhaust device according to a second aspect of the present invention may be configured such that: the air conditioner further includes a driving unit that drives the state switching member, and a control unit that controls the driving unit so that the state switching member is switched to the normal state, the intake state, or the exhaust state.
In the air intake and exhaust device according to the third aspect of the present invention, in the second aspect, the air intake and exhaust device may be configured such that: the state switching member includes a rotation switching member that is rotatably provided inside the casing portion, and that is configured to be in the normal state, the intake state, or the exhaust state according to a rotation position, and the drive portion rotates the rotation switching member.
The air intake and exhaust device according to a fourth aspect of the present invention may be configured as in the third aspect: the case section has the exhaust port and the intake port at a position facing an outer peripheral portion of the rotation switching member, the suction/exhaust port at a position facing a side surface intersecting an axial direction of the rotation switching member, the rotation switching member has an exhaust port/intake port opening/closing portion for opening/closing the exhaust port and the intake port on the outer peripheral portion, respectively, an intake/exhaust port opening/closing portion for opening/closing the suction/exhaust port on the side surface at a position adjacent to the exhaust port/intake port opening/closing portion in the circumferential direction, and a partition portion for partitioning an inside of the rotation switching member in the axial direction into a region where the exhaust port/intake port opening/closing portion and the suction/exhaust port opening/closing portion are present and a region where the suction/exhaust port opening/closing portion and the suction/exhaust port opening/closing portion are not present.
The air intake and exhaust device according to a fifth aspect of the present invention may be configured such that, in the second aspect: the state switching member includes an outer cylinder portion and an inner cylinder portion, one end of the outer cylinder portion is a stopper portion, the inner cylinder portion is fitted inside the outer cylinder portion and is capable of sliding in an axial direction relative to the outer cylinder portion, and an end portion on the same side as a stopper portion of the outer cylinder portion is a stopper portion, the outer cylinder portion includes an outer cylinder air inlet and an outer cylinder air outlet at positions displaced from each other in the axial direction of a cylindrical peripheral wall portion, the inner cylinder portion includes an inner cylinder air inlet and an inner cylinder air outlet in the cylindrical peripheral wall portion, an end portion on an open side in the axial direction is the air inlet/outlet, the outer cylinder portion and the inner cylinder portion constitute the outer cylinder portion, and the outer cylinder air inlet and the outer cylinder air outlet are blocked by an outer peripheral surface of the inner cylinder portion in the normal state due to the sliding operation, and in the air intake state, the outer cylinder air inlet and the inner cylinder air inlet are configured to allow air to flow therethrough, and the outer cylinder air outlet is closed by the outer circumferential surface of the inner cylinder, and in the exhaust state, the outer cylinder air outlet and the inner cylinder air outlet are configured to allow air to flow therethrough, and the outer cylinder air inlet is closed by the outer circumferential surface of the inner cylinder, and the driving unit drives at least one of the outer cylinder and the inner cylinder to perform the sliding operation.
An air conditioner according to a sixth aspect of the present invention includes the air intake/exhaust device according to any one of the first to fifth aspects in an indoor unit.
The present invention is not limited to the above embodiments, and includes embodiments within the technical scope of the present invention, which can be obtained by appropriately combining technical means disclosed in the respective embodiments with various modifications within the scope shown in the claims. Further, new technical features can be formed by combining technical means disclosed in the respective embodiments.
Description of the reference numerals
1 indoor machine
2 indoor set main body part
3 air guide panel
11 suction inlet
12 blowing fan
13 heat exchanger
14 blow-out port
17 Filter
18 low pressure region
19 high pressure region
20 fan motor
21-24 air suction and exhaust device
31 switching motor
32 main part of the box body
33 case body auxiliary part
34 rotary switching member
34a exhaust port/intake port opening/closing part
34b air inlet/outlet opening/closing part
34c partition part
34d center axis
35 air intake and exhaust pipeline
36 suction and exhaust box (box body part)
36a exhaust port
36b suction inlet
36d air suction and exhaust port
37 medium pressure area
41 control part
61 outer cylinder part (case body part)
61a blocking part
61b outer cylinder air inlet
61c outer cylinder exhaust port
62 inner cylinder part (case body part)
62a blocking part
62b inner barrel air inlet
62c inner barrel exhaust port
62d air suction and exhaust port
Claims (6)
1. An air suction and exhaust device is characterized in that,
an indoor unit installed in an air conditioner having a blowing fan generating a high pressure region, a low pressure region and a middle pressure region relatively by rotation of the blowing fan,
the suction/exhaust device comprises a case having an internal space, and a state switching member having an exhaust port configured to be able to communicate with the high-pressure region, an intake port configured to be able to communicate with the low-pressure region, and a suction/exhaust port configured to be able to communicate with the medium-pressure region is provided in the case,
the state switching means is capable of switching to a normal state, an intake state and an exhaust state,
in the exhaust port, the intake port, and the intake/exhaust port, the intake port, and the intake/exhaust port are not allowed to mutually communicate through the internal space in the normal state, only the intake/exhaust port and the intake port are allowed to mutually communicate through the internal space in the intake state, and only the intake/exhaust port and the exhaust port are allowed to mutually communicate through the internal space in the exhaust state.
2. The air intake/exhaust device according to claim 1, comprising:
a driving unit that drives the state switching member;
a control unit that controls the drive unit so that the state switching member is switched to the normal state, the intake state, or the exhaust state.
3. The air intake and exhaust device according to claim 2,
the state switching member includes a rotation switching member that is rotatably provided inside the casing portion and that is configured to be in the normal state, the intake state, or the exhaust state according to a rotation position,
the drive unit rotates the rotation switching member.
4. The air intake and exhaust device according to claim 3,
the casing portion has the exhaust port and the intake port at a position facing an outer peripheral portion of the rotation switching member, and has the intake/exhaust port at a position facing a side surface intersecting an axial direction of the rotation switching member,
the rotary switching member has an exhaust port/intake port opening/closing portion for opening and closing the exhaust port and the intake port, respectively, on an outer peripheral portion thereof, and a suction/exhaust port opening/closing portion for opening and closing the suction/exhaust port on the side surface at a position adjacent to the exhaust port/intake port opening/closing portion in the circumferential direction, and has a partition portion for partitioning an interior of the rotary switching member in an axial direction into a region where the exhaust port/intake port opening/closing portion and the suction/exhaust port opening/closing portion are present and a region where the suction/exhaust port opening/closing portion and the suction/exhaust port opening/closing portion are not present.
5. The air intake and exhaust device according to claim 2,
the state switching member has an outer tube portion and an inner tube portion, one end of the outer tube portion is a stopper portion, the inner tube portion is fitted to the inner side of the outer tube portion, and is capable of sliding in the axial direction relative to the outer tube portion, and an end portion on the same side as the stopper portion of the outer tube portion is a stopper portion,
the outer cylinder part has an outer cylinder air inlet and an outer cylinder air outlet at positions of the cylindrical peripheral wall part which are staggered with each other in the axial direction,
the inner cylinder portion has an inner cylinder air inlet and an inner cylinder air outlet in a cylindrical peripheral wall portion, an end portion on an open side in an axial direction serves as the air inlet/outlet,
the outer cylinder portion and the inner cylinder portion constitute the outer cylinder portion, the outer cylinder air inlet and the outer cylinder air outlet are blocked by an outer peripheral surface of the inner cylinder portion in the normal state due to the sliding operation, the outer cylinder air inlet and the inner cylinder air inlet are allowed to communicate with each other in the intake state, the outer cylinder air outlet is blocked by an outer peripheral surface of the inner cylinder portion, the outer cylinder air outlet and the inner cylinder air outlet are allowed to communicate with each other in the exhaust state, and the outer cylinder air inlet is blocked by an outer peripheral surface of the inner cylinder portion,
the driving section drives at least one of the outer tube section and the inner tube section to perform the sliding operation.
6. An air conditioner characterized in that the indoor unit is provided with the air suction/discharge device according to any one of claims 1 to 5.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-109722 | 2018-06-07 | ||
| JP2018109722 | 2018-06-07 | ||
| PCT/JP2019/006643 WO2019234996A1 (en) | 2018-06-07 | 2019-02-21 | Intake/exhaust device and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112204311A true CN112204311A (en) | 2021-01-08 |
Family
ID=68769344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980036955.3A Pending CN112204311A (en) | 2018-06-07 | 2019-02-21 | Air suction and exhaust device and air conditioner |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPWO2019234996A1 (en) |
| CN (1) | CN112204311A (en) |
| WO (1) | WO2019234996A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685901A (en) * | 2020-05-19 | 2021-11-23 | 宁波奥克斯电气股份有限公司 | Air inlet device and air conditioner |
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- 2019-02-21 CN CN201980036955.3A patent/CN112204311A/en active Pending
- 2019-02-21 WO PCT/JP2019/006643 patent/WO2019234996A1/en active Application Filing
- 2019-02-21 JP JP2020523513A patent/JPWO2019234996A1/en active Pending
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| JP2003176944A (en) * | 2001-12-07 | 2003-06-27 | Daikin Ind Ltd | Ventilation system and air conditioner |
| JP2005164206A (en) * | 2003-12-05 | 2005-06-23 | Hitachi Ltd | Indoor unit for air conditioner, and air conditioner |
| CN103906929A (en) * | 2011-08-05 | 2014-07-02 | 瑞思迈发动机及马达技术股份有限公司 | Blower |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2019234996A1 (en) | 2019-12-12 |
| JPWO2019234996A1 (en) | 2021-06-17 |
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