JP3739989B2 - Air purifier with ventilation function - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air purifier with a ventilation function that has a function of ventilating indoor air and collects particles such as dust, bacteria, and odor components floating in the air.
[0002]
[Prior art]
Conventionally, an air cleaning device with a ventilation function has been proposed. An example of this type of air cleaning device is disclosed in Japanese Patent Application Laid-Open No. 11-23042. The apparatus disclosed in this publication includes a heat exchange unit that exchanges heat between indoor air sucked from an indoor air suction port and outdoor air sucked from an outdoor air suction port, and heat exchange in the heat exchange unit A mixing unit that mixes outdoor air after being performed and indoor air sucked from the indoor air suction port into a mixture, and an air purifying unit that receives the mixture and cleans the air to clean air It is what has.
[0003]
[Problems to be solved by the invention]
In this type of device, there is a problem of how to improve ventilation efficiency and dust collection efficiency in the device main body for space saving, and basic requirements such as low noise and energy saving must be satisfied.
[0004]
However, the above-described device has a problem that it cannot be satisfied from the viewpoint of increasing the ventilation efficiency and the dust collection efficiency.
[0005]
In the apparatus disclosed in the embodiment of the above publication, since the apparatus main body is a wall-embedded type, the air inlet and the air outlet are on the same plane, so the air blown out from the air outlet remains as it is. There is a risk that a so-called short circuit will be formed, and the indoor intake port cannot be made large, so that the ventilation capacity tends to be insufficient. Moreover, although it seems that it originates in this, since three fans are used, it becomes inadequate also in terms of low noise and energy saving.
[0006]
This invention makes it a subject to provide the air purifier with a ventilation function which improved ventilation efficiency and dust collection efficiency in view of such a situation.
[0007]
[Means for Solving the Problems]
  In a first aspect of the present invention that solves the above-described problem, in the air purifier with a ventilation function that ventilates indoor air and has a collection unit that collects dust particles in the air, Exhaust means for sucking in from the indoor air suction port and exhausting the air from the exhaust port to the outside, sucking outdoor air from the outdoor air suction port, sucking indoor air from the second indoor air suction port, and collecting them in the collecting unit Blows clean air that has been sent and cleaned from the air outlet into the roomIt is a fan provided on the downstream side of the collection unitA suction blowing means, and a heat exchanging means for exchanging heat between the air exhausted to the outside by the exhaust means and the air sucked from the outside by the suction blowing means,The first indoor air inlet is provided on at least the lower surface side of the apparatus main body, and the outlet is provided on at least the front surface side of the apparatus main body,The second indoor air intake port communicating with the pre-cleaning air chamber on the upstream side of the collecting section;SaidIt consists of a lower surface indoor air intake port provided on the lower surface side of the apparatus main body and a front indoor air intake port provided on the front surface side,Indoor air that is sucked in from the lower surface indoor air inlet and the front indoor air inlet and flows into the pre-cleaning air chamber;Sucked from the outdoor air inlet and passed through the heat exchange meansThe outside air flowing into the pre-cleaning air chamber from the lateral side flows in and merges from three directions substantially orthogonal in three dimensions.It is in the air purifier with a ventilation function characterized by this.
[0008]
  In such a first aspect, the indoor air can be efficiently exhausted by the exhaust means, and the suction blow-out meansThe indoor air is sucked in and the outdoor air is sucked through the heat exchange element portion and sent to the collecting portion by the fan on the downstream side of the collecting portion, and the air cleaned in the collecting portion is blown out into the room. Can do thisAllows the outdoor air and the indoor air to be efficiently sent to the collection unit for air cleaning, and the indoor air and the outdoor air are efficiently mixed in the pre-cleaning air chamber. Dust collection is performed efficiently.In addition, since a flow of air that is sucked in from the indoor air suction port provided on the lower surface of the apparatus main body and blown out from the air outlet provided on the front side is formed, air in a wide range in the room can be exhausted Can be cleaned with.
[0014]
  Of the present inventionThe second aspect is the first aspect.In the air purifier with a ventilation function, the exhaust means is a fan provided on the downstream side of the heat exchange means of the flow path for exhausting indoor air.
[0015]
  TakeSecond aspectThen, the indoor air can be efficiently exhausted to the outside by the fan provided on the downstream side of the heat exchange means.
[0020]
  Of the present inventionThe third aspect is the first or second aspect.In the air cleaner with a ventilation function, the intake air amount of the outdoor air intake port is reduced to about 1/10 with respect to the total intake air amount of the lower surface side indoor air intake port and the front indoor air intake port. In the device.
[0021]
  TakeThird aspectThen, in use in a cold region, condensation near the outdoor air inlet is prevented, and when the temperature difference between the indoor and outdoor is large, the greenhouse loss can be reduced.
[0022]
  Of the present inventionThe fourth aspect is any one of the first to third aspectsIn the pre-clean air chamber upstream of the collection partAway from the side where the outdoor air flows in.A dust sensor is provided,This dust sensor detects the amount of dust every predetermined timeDepending on the amount of dust detected by the dust sensor, the amount of suction blowout by the suction blowout means isEvery predetermined timeIt exists in the air purifier with a ventilation function characterized by being adjusted.
[0023]
  TakeFourth aspectThen, capacity can be adjusted according to the amount of dust in room air, and ventilation and cleaning can be performed efficiently.Further, the influence of outdoor air on the amount of dust detected by the dust sensor can be minimized, and ventilation and cleaning can be efficiently performed according to the amount of dust in the indoor air. Furthermore, by adjusting the suction and blowing amount every predetermined time, it is possible to prevent the occurrence of noise accompanying frequent adjustment of the strength of the fan.
[0040]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described in detail based on an embodiment.
[0041]
FIG. 1 is a perspective view of an air cleaning device with a ventilation function according to an embodiment, FIG. 2 is an exploded perspective view with a lid removed, and FIG. 3 is a diagram conceptually showing the flow of air.
[0042]
As shown in these drawings, the air cleaning device 1 with a ventilation function is a wall-mounted type, and opens and closes an apparatus body 10 having an opening on the front surface having a substantially rectangular parallelepiped shape as a whole, and an opening of the apparatus body 10. And a lid 20 that is detachably attached. The lower surface of the apparatus main body 10 is provided with a first indoor air suction port 11 for sucking indoor air to exhaust outside and a second indoor air suction port 12 for sucking indoor air for cleaning. It has been. In addition, a blower outlet 13 for blowing the cleaned air into the room is provided in the upper front portion of the apparatus main body 10. On the other hand, a third indoor air inlet 21 for sucking indoor air for cleaning is provided at the lower part of the lid 20.
[0043]
The opening that is opened and closed by the lid 20 is divided into two on the left and right sides by a partition wall 14. In the figure, the heat exchange element portion 30 is detachable on the left side of the partition wall 14 and the collecting portion 40 is detachable on the right side. is set up.
[0044]
The left side of the partition wall 14 is a heat exchange unit 50, and the right side is an air cleaning unit 60. The indoor air inflow chamber 51 below the heat exchange element section 30 and the indoor air exhaust chamber 52 above the heat exchange element section 30 serve as indoor air exhaust channels. The indoor air inflow chamber 51 communicates with the first indoor air suction port 11. In addition, a first fan (an axial fan or the like is used in the present embodiment) 70 that is an exhaust unit for indoor air is provided in the indoor air exhaust chamber 52, and the rear side downstream of the axial fan 70. Is provided with an exhaust port 53 for exhausting indoor air.
[0045]
On the other hand, the first outdoor air inflow chamber 54 on the left side and the second outdoor air inflow chamber 55 on the right side of the heat exchange element section 30 form an outdoor air inflow path. An outdoor air inlet 56 is provided at the rear. Further, the second indoor air inflow chamber 55 communicates with the air purifying unit 60 through the communication port 14 a provided in the partition wall 14.
[0046]
A pre-cleaning air chamber 61 that communicates with the second outdoor air inflow chamber 55 through the communication port 14a is defined below (upstream) the collection unit 40 of the air cleaning unit 60. The chamber 61 communicates with the second indoor air inlet 12 and the third indoor air inlet 21. Further, a cleaning air chamber 62 is defined above (downstream side) the collection unit 40. In the clean air chamber 62, a deodorizing unit 80 provided immediately above the collecting unit 40 and a second fan (in this embodiment, a cross-flow fan is used) that is a suction blowing unit provided above the deodorizing unit 80. 90) is arranged, and the front of the second fan 90 is the air outlet 13.
[0047]
In such a configuration, due to the action of the second fan 90, indoor air is sucked into the pre-clean air chamber 61 from the second indoor air suction port 12 and the third indoor air suction port 21 and the outdoor air suction port 56. Outdoor air flows into the pre-cleaning air chamber 61 through the heat exchange element section 30, and the indoor air and outdoor air combined together in the pre-cleaning air chamber 61 blow through the collection section 40 and the deodorizing section 80. It blows out into the room from the outlet 13. At this time, the sucked indoor air and outdoor air are purified by the collection unit 40 and deodorized by the deodorization unit 80.
[0048]
Further, the air sucked from the first indoor air suction port 11 by the first fan 70 is exhausted from the exhaust port 53 through the heat exchange element portion 30. At this time, in the heat exchange element section 30, heat is exchanged between the exhausted indoor air and the outdoor air sucked from the outdoor and flowing into the pre-cleaning air chamber 61, and the outdoor air is warmed or cooled to Flow into. In addition, if a total heat exchange element is used as the heat exchange element part 30, humidity exchange is also possible with heat exchange.
[0049]
Here, the second indoor air inlet 12 communicating with the pre-cleaning air chamber 61 is provided on the lower surface of the apparatus body 10, the third indoor air inlet 21 is provided on the front side, and the outdoor air inlet 56. The communication port 14 a that takes in outdoor air that has been sucked in through the heat exchange element section 30 is provided on the side. Accordingly, since the indoor air and the outdoor air flow into the pre-cleaning air chamber 61 from three directions substantially orthogonal to each other, they are well mixed and stirred before flowing into the collection unit 40. More specifically, since the flow path is formed so that the outdoor air flows from the communication port 14a toward the second indoor air suction port 12 obliquely below, the outdoor air that has entered the pre-cleaning air chamber 61 is First, it collides with the room air taken in from the second room air inlet 12, thereby being well mixed and stirred, and then in the upper part of the pre-cleaning air chamber 61, the front side third room air inlet 21. Then, the air is combined with the room air flowing in from the air, mixed and stirred, and taken into the collection unit 40.
[0050]
Thereby, even if the amount of dust and odor contained in the indoor air and the outdoor air is different, for example, even if the outdoor air contains a lot of dust and odor, it is completely removed before being taken into the collection unit 40. Are mixed and agitated into a uniform state, so that the collection unit 40 is well cleaned. That is, since the cleaning and deodorizing ability in the collecting unit 40 and the deodorizing unit 80 is constant over the surface direction, if the mixing and stirring is not sufficient, the dust and odor are often contained in the collecting unit 40. In the portion where the contained air flows, cleaning and deodorization may be insufficient locally, and performance deterioration due to local contamination may occur, which is not preferable. For example, when air containing a lot of dust partially flows, there is a problem that local dust accumulation occurs in the collection unit 40, and the time until maintenance such as cleaning is shortened. When a dust collector is used, there is a problem that it causes a spark and a creepage leak. Although the electrostatic dust collector is used in this embodiment, there is no fear of sparks and creeping leaks by forming the dust collecting electrode and the non-dust collecting electrode with a special material as will be described later.
[0051]
Moreover, in this embodiment, as above-mentioned, by the effect | action of the 2nd fan 90, while sucking indoor air from the 2nd indoor air suction inlet 12 and the 3rd indoor air suction inlet 21, it is from the outdoor air suction inlet 56. The outdoor air is sucked in, but the intake air volume of the outdoor air from the outdoor air intake port 56 with respect to the total intake air volume of the indoor air from the second indoor air intake port 12 and the third indoor air intake port 21 Can be set to an arbitrary air volume by appropriately adjusting the pressure loss of the heat exchange element section 30 and the filter 35. For example, in order to prevent condensation near the outdoor air inlet 56 when used in a cold region, or to reduce temperature and humidity loss when the temperature difference between the indoor and outdoor is large, It is preferable to reduce the intake air volume of outdoor air to about 1/10.
[0052]
Hereinafter, each member will be described in detail.
[0053]
The heat exchange element portion 30 has a substantially rectangular parallelepiped shape that is detachably mounted in the apparatus main body 10, and has a handle 31 on the front side as shown in FIG. Further, the heat exchange element section 30 has a structure in which a heat transfer plate 32 and a corrugated plate 33 forming an air flow path are alternately stacked, and includes a number of first flow paths communicating in the left-right direction, A large number of second flow paths communicating in the direction are provided adjacent to each other via the heat transfer plate 32, and the left and right surfaces serving as the input / output side of the first flow path and the input / output side of the second flow path A filter 35 is provided on each of the upper and lower surfaces. Further, a concave portion 37 is formed on the rear surface side of the heat exchange element portion 30, and a space between the concave portion 37 and the rear surface of the apparatus main body 10 serves as a bypass flow path for exhausting indoor air to the outside.
[0054]
In the present embodiment, the collection unit 40 is an electrostatic dust collector, and includes an ionizer 41 that applies charges to fine particles in the air, and a collector 42 that collects charged fine particles by electrostatic force. The ionizer 41 and the collector 42 can be easily attached and detached, and can be easily maintained.
[0055]
Here, the ionizer 41 is composed of a combination of a discharge electrode member and a counter electrode member. The discharge electrode member is a wire called an ionization line, and the counter electrode member has a volume specific resistance value of 10.⁷It is formed of a conductive material of Ω · cm or less. In such an ionizer 41, it is necessary to have a structure in which the ionization line is simply placed in a highly accurate positioning state with respect to the counter electrode member.
[0056]
An example of such an ionizer 41 is shown in FIGS. As shown in the plan view and the front view of FIG. 5, the ionizer 41 includes a metal box-shaped frame body 101 and resin ionization line holding members 102 and 103 that engage with both longitudinal ends thereof. The frame body 101 includes a counter electrode 104 formed by partially raising the bottom and an opening 105.
[0057]
The ionization line 106 stretched around a predetermined position by the ionization line holding parts 102 and 103 is connected to a coil spring 107 at both ends, and a substantially central part is associated with a folded part 108 provided on the ionization line holding member 103. The coil spring 107 is held by being locked in the locking hole 110 of the ionization line holding part 102 in a state where both ends are positioned by the guide part 109 of the ionization line holding member 102.
[0058]
Here, the folded portion 108 has a semi-cylindrical shape and has a structure that holds the folded central portion of the ionization line 106 at a predetermined width and a predetermined height. The guide portion 109 also has a shape that holds the ionization line 106 at the same predetermined width and predetermined height as the folded portion 109. However, as shown in FIG. 7A, the distance d between the pair of locking holes 110 that locks both ends of the ionization line 106.¹Is a predetermined width d of the guide portion 109²It is slightly narrower and is provided at a position higher than the lower end of the wide portion 109 a of the guide portion 109. Thus, it is ensured that the ionization line 106 is held at a predetermined width and a predetermined height regulated by the guide portion 109.
[0059]
Since the ionized wire 106 stretched in this way is formed by a single wire in a reciprocating manner, it is easier to mount than forming by one wire at a time, and all the wires are formed as a single wire. There is an advantage that the tension can be made uniform rather than the structure.
[0060]
In addition, since a height regulating member 111 that regulates the height of the ionized wire 106 thus stretched to a predetermined height is provided at the center in the longitudinal direction of the frame body 101, the cause of corona discharge or the like The vibration of the ionization line 106 due to can be prevented.
[0061]
Note that the engagement between the frame body 101 and the ionization line holding portions 102 and 103 is such that the locking pawl 112 formed on the frame body 101 is engaged with the through hole 113 formed on the ionization line holding members 102 and 103. Therefore, it can be easily performed.
[0062]
On the other hand, the collector 42 is composed of a combination of a dust collecting electrode plate and a non-dust collecting electrode plate, although not shown, and the dust collecting electrode plate has a volume resistivity of 10.⁷It is made of a conductive material of Ω · cm or less, and the non-dust collecting electrode plate has a volume resistivity of 10^Ten-10¹³It is preferably formed of a semiconductive resin material of Ω · cm. Preferably, each of the dust collecting electrode plates and the non-dust collecting electrode plates is formed by integrally forming a shape having a plurality of comb teeth or a plate shape with each material, and combining them. Thus, the collector 42 is preferably configured.
[0063]
Here, the dust collecting electrode plates and the high non-dust collecting electrode plates are in the form of parallel plates, and are required to be alternately arranged in parallel and at equal intervals. In the case of electrostatic dust collection, the dust collection electrode plate and the non-dust collection electrode plate have a uniform electric field strength in order to improve dust collection efficiency (the distance between the electrodes at the upstream and downstream positions of the airflow). In order to be uniform), and in the case of using a cross flow fan as in the present invention from the relationship of ventilation resistance, each electrode plate is provided with the second fan 90. It is convenient to arrange them so as to be orthogonal to the axial direction. Thereby, the air flow rate between the electrode plates can be made the same level, the ventilation resistance can be reduced, and the dust collection performance of each electrode plate can be used effectively.
[0064]
In the ionizer 41 and the collector 42 configured as described above, even if conductive dust is mixed in particles charged by the ionizer 41, the movement of the charge of the high-voltage electrode member is limited by the resistance of the semiconductive resin material. Therefore, it is possible to prevent the occurrence of sparks between the high voltage electrode member and the counter electrode member of the dust collecting portion.
[0065]
In addition, as the collection unit 40, for example, it is possible to use a filtration type dust collector, but in the case of the filtration type, the dust collection efficiency decreases due to clogging of the filter, and the pressure loss increases, Also, playback is impossible. On the other hand, when the electrostatic dust collector as described above is used, the pressure loss does not decrease even if there is a lot of fine dust in the air, so the dust is stably collected for a long time with a small power. It has the advantage that it can be performed, and since it can be reproduced, it is also good for the environment.
[0066]
The deodorizing unit 80 includes a plate-like photocatalytic filter element 81 and a light source (using a straight tubular ultraviolet lamp in this embodiment) 82 that emits photocatalytic excitation light. The photocatalyst filter element 81 has, for example, a structure in which a large number of flow paths communicating in the thickness direction of a honeycomb shape are provided, and a photocatalyst is supported on partition walls constituting these flow paths. The light source 82 is preferably provided so that the entire surface of the photocatalytic filter element 81 can be irradiated with light so that the entire photocatalyst can be activated, but it may be provided on the upstream side or the downstream side. In addition, it is good also as a structure which gives a predetermined pressure loss so that passage of ventilation | gas_flowing may become uniform over the planar direction of the photocatalyst filter element 81. FIG.
[0067]
As shown in FIG. 8, the lid 20 is provided so as to be openable and detachable with respect to the apparatus main body 10. However, the lid 20 is not detached until the lid 20 is opened more than a predetermined angle. That is, such an air purifier is usually installed near the ceiling, but has a structure that prevents accidents caused by dropping when the lid 20 is opened overhead.
[0068]
Specifically, the lid body 20 is locked to the apparatus main body 10 by three locking portions 22 and 23, and the locking portions 22 and 23 are shown in FIG. 9 showing a partially enlarged cross section of the locking portion. Is configured to be supported by ribs 22a and 23a provided on the back side while being inserted into the locking hole 16 of the apparatus main body 10. Here, the locking portions 23 on the left and right sides are detached from the locking holes 16 when opened at a predetermined angle, for example, about 30 °. However, the locking portion 22 at the center has a locking claw portion 22b at the tip. For example, when the locking portion 22 is opened about 30 °, the rib 22a and the locking claw portion 22b are locked to the locking hole 16 and detached. Although not large, it is designed so that it can be detached only when it is opened, for example, about 60 °.
[0069]
In addition, the lid 20 is provided with a viewing window 25 for confirming that the light source 82 of the deodorizing unit 80 is turned on and for determining the lifetime based on a decrease in brightness. That is, the light source 82 that emits photocatalytic excitation light such as an ultraviolet lamp emits a small amount of visible light together with the photocatalytic excitation light, and can be determined to have a lifetime when the visible light is not sufficiently irradiated. On the other hand, it is conceivable that the irradiation time is integrated and the life is notified by a sensor or the like. However, in this case, it is not possible to cope with a failure of the light source itself, and it is necessary to separately provide a timer and a sensor. There is a problem. In the present invention, the lighting and lightness of the light source 82 can be directly confirmed, so that the deodorizing unit 80 can be confirmed to work reliably.
[0070]
Furthermore, as shown in FIG. 10A, the observation window 25 is provided with a light transmission member 26 having a structure that transmits light obliquely downward, so that, for example, an apparatus installed near the ceiling can be viewed from below. Even when looking up, the brightness of the observation window 25 can be surely confirmed. On the other hand, as shown in FIG. 10B, in the case of the light transmission member 26A that simply transmits light, the light from the light source 82 does not go downward, so it is difficult to visually confirm. There's a problem.
[0071]
FIG. 11 shows a schematic flow showing the air flow of the air cleaning device with ventilation function 1 of the present embodiment described above. As shown in the figure, due to the action of the second fan 90, the indoor air sucked from the second indoor air suction port 12 and the third indoor air suction port 21 and the outdoor air suction port 56 were sucked. Outdoor air is combined in the pre-clean air chamber 61. The air is further cleaned by the collecting unit 40 and deodorized by the deodorizing unit 80 by the action of the second fan 90, and blown out into the room from the air outlet 13. In addition, the indoor air sucked from the first indoor air suction port 11 by the action of the first fan 70 is exhausted from the exhaust port 53 through the heat exchange element unit 30. Moreover, since the outdoor air taken in from the outdoor air suction port 56 and the indoor air sucked from the first indoor air suction port 11 and exhausted from the exhaust port 53 are heat-exchanged by the heat exchange element unit 30. , Energy waste can be saved.
[0072]
Thus, since the air purifier 1 with a ventilation function of this embodiment takes in indoor air from the 1st-3rd indoor air suction inlets 11, 12, and 21, and ventilates and cleans it, it is very efficient indoors. Air can be cleaned.
[0073]
At this time, in particular, since the indoor air is sucked from the first and second indoor air suction ports 11, 12 provided on the lower surface of the apparatus main body 10, the cleaned air is blown out from the upper front of the apparatus main body 10. There is an advantage that a large air circulation flow is formed in the room, and a wide range of air in the room is efficiently ventilated and cleaned.
[0074]
This state is shown in FIG. 12 (a), and the indoor air sucked from the first to third indoor air suction ports 11, 12, and 21 is sucked obliquely from the lower side as a whole, from the air outlet 13. Since the air is blown forward, a good circulation flow is formed in the room, and cigarette smoke and the like are well cleaned. Such a circulating flow can be well collected and cleaned without diffusing the smoke that rises while fluctuating like the sidestream smoke of cigarettes. On the other hand, the wall-embedded type as shown in FIG. 12B blows out from the front surface to the suction front surface, so that there is a problem that the smoke of the cigarette is caught in the blowout flow and diffused and not sufficiently cleaned.
[0075]
In the present embodiment, the ratio of the suction amount from the second indoor air suction port 12 to the suction amount from the third indoor air suction port 21 is set to 6 to 8: 4 to 2 as described above. A good indoor circulation flow is stably formed.
[0076]
Specifically, the opening area ratio between the second indoor air suction port 12 and the third indoor air suction port 21 is about 2: 1, and the pressure loss value of the prefilter provided in each is about 0.6. ˜0.8 Pa, about 1 Pa, and thereby, the suction amount from the second indoor air suction port 12 is about 2.1 m.^Three/ Min and the amount of suction from the third indoor air inlet 21 is about 0.9 m^Three/ Min. The pressure loss value of the prefilter is adjusted by using the same prefilter provided at the second indoor air inlet 12 and the third indoor air inlet 21, and the former is pleated and the latter is a flat plate. It was performed by adjusting the filter area as a shape.
[0077]
Furthermore, in the present invention, the functions of ventilation and cleaning as described above can be performed by the first and second fans 70 and 90, which is excellent in terms of energy saving and space saving. At this time, in the heat exchange element section 30, heat is exchanged between the exhausted indoor air and the outdoor air sucked from the outdoor and flowing into the pre-cleaning air chamber 61, and the outdoor air is warmed or cooled to Flow into.
[0078]
Moreover, in this embodiment, in order to improve a ventilation function with small power, the recessed part 37 is provided in the rear surface of the heat exchange element part 30, and a part of indoor air taken in from the 1st indoor air inlet 11 is heat-exchanged. The element unit 30 is bypassed and exhausted to the exhaust port 53. Thereby, indoor air can be efficiently ventilated and it can clean efficiently with small energy. In addition, although illustration is abbreviate | omitted such a bypass flow path, it can be opened and closed by a shutter member, and ventilation capacity can be adjusted now as needed. The shutter member may be automatically opened and closed based on information such as an inside / outside temperature difference, a humidity difference, and an outside air contamination level.
[0079]
The air cleaning device with ventilation function 1 of the present embodiment can adjust the ventilation / air cleaning function by controlling the rotational speeds of the first and second fans 70 and 90, but this is automatically performed. In order to control, a dust sensor 110 is provided in the pre-cleaning air chamber 61 as shown in FIG. The dust sensor 110 detects the amount of dust, cigarette smoke, and the like in the air. Although not shown in the drawings, the rotational speeds of the first and second fans 70 and 90 are determined according to the detected amount. Feedback control is provided. At this time, the dust sensor 110 continuously detects the amount of dust, but if the rotational speeds of the first and second fans 70 and 90 are continuously controlled according to this value, the rotational speed changes too much. noiseOr discomfortIn this embodiment, for example, the rotational speeds of the first and second fans 70 and 90 are controlled based on the detection amount of the dust sensor 110 acquired at intervals of 10 seconds.
[0080]
At this time, the rotational speeds of the first and second fans 70 and 90 may be continuously changed. However, it is efficient to control in stages by dividing into three stages such as strong, medium, and weak. It is. At this time, the first fan 70 and the second fan 90 may be controlled in the same way, but when the amount of dust is more than a certain level, the ventilation function is maximized and only the air cleaning ability is finely controlled. You may make it do. For example, the second fan 90 that is directly related to the air cleaning capability is set to three levels of strong, medium, and weak, the first fan 70 for the ventilation function is set to two levels of strong and weak, and the second fan 90 is The first fan 70 is operated with high power when strong and medium, and the ventilation function can be used efficiently, which is preferable.
[0081]
The installation position of the dust sensor 110 is not particularly limited as long as it is a position where the air before air cleaning comes into contact. However, it is preferable to install the dust sensor 110 in a place farthest from the communication port 14a into which the outdoor air of the air chamber 61 before cleaning flows. This is because it is preferable to adjust the driving ability according to the amount of dust in the air in the room where people are present rather than outdoors. Also, the type of sensor is not particularly limited. For example, a gas sensor may be provided, but it is preferable to provide a dust sensor 110 that can detect cigarette smoke and the like in the same way that a person in the room feels dust.
[0082]
Moreover, the air purifying apparatus 1 with the ventilation function according to the present embodiment has, for example, strong, medium, and weak driving ability in addition to the automatic operation mode in which the driving ability is adjusted according to the detection result of the dust sensor 110 as described above. There are a mode for manually switching to three stages, a mode for turning off only the ventilation function, a mode for working only the ventilation function, an off-timer operation mode for turning off the operation after 1, 2, and 4 hours.
[0083]
Furthermore, the air purifying apparatus with ventilation function 1 of the present embodiment has an operation display unit 120 for displaying various information in addition to the various operation modes as described above, in the lower front portion of the apparatus main body 10. FIG. 13 shows an enlarged view of the operation display unit 120. As shown in the figure, the operation display unit 120 includes an on-state display lamp 121 indicating on / off of the power supply of the entire apparatus, and a current amount corresponding to the amount of dust detected by being connected to the dust sensor 110 described above. The dust monitor 122 displays the amount of dust in the room in four stages, the ventilation lamp 123 indicates that the ventilation function is working, the automatic operation mode described above, or the manual operation mode of strong, medium, or weak Is displayed, and an off-timer lamp 125 indicating an off-timer operation mode is provided. Further, for example, when the output of the high voltage power source of the ionizer 41 or the collector 42 is lowered, the cleaning time of the inspection lamp 126 for notifying that the inspection is necessary and the cleaning time of the filter of the collecting unit 40 are obtained by, for example, integrating the operation time. A filter lamp 127 for informing, a check lamp 126, and a reset switch 128 for resetting the filter lamp 127 are provided. In the operation display unit 120, a light receiving unit 130 that receives infrared rays or the like as a control signal from a remote controller is provided.
[0084]
  As described above, the air cleaning device 1 according to the present embodiment has a mode in which the ventilation function is turned off.Instructionscan do. As a result, the operation of the first fan 70 is automatically stopped. At this time, a shutter for opening and closing the exhaust port 53 and the outdoor air suction port 56 is provided on the rear surface side of the apparatus main body 10 in order to prevent the backflow of the outdoor air from the exhaust port 53 into the room. A shutter opening / closing lever 140 for opening and closing the shutter is provided on the left side of the front surface of the apparatus body 10 (see FIG. 1A). It is also possible to automatically switch to the ventilation function off mode when the shutter is closed by the shutter opening / closing lever 140.
[0085]
As shown in FIGS. 14 and 15, the shutter opening / closing lever 140 and the shutter 150 are disposed between the back panel 57 of the heat exchange unit 50 and the back panel 17 of the apparatus main body 10. The shutter opening / closing lever 140 has a proximal end portion 142 rotatably held in a state where a distal end 141 protrudes to the side of the apparatus main body 10. On the other hand, the outer periphery of the shutter 150 is guided and held by a guide member 151 erected on the rear surface side of the rear panel 57, and a guide bar 152 extending upward from the central portion of the shutter 150 is erected on the rear panel 57. By being engaged with the guide bar guide groove 153, the movement in the rotational direction is restricted, and the guide bar guide groove 153 is provided so as to be movable in the vertical direction. Further, the lower end portion 154 of the shutter 150 and the vicinity of the central portion 143 of the shutter opening / closing lever 140 are connected by a connecting member 155, and the shutter 150 moves in the vertical direction by the rotation of the shutter opening / closing lever 140. Yes.
[0086]
By adopting such a structure, the shutter 150 can be opened and closed by moving the tip of the shutter opening / closing lever 140 a little, and this is particularly convenient when operating the apparatus main body 10 installed near the ceiling.
[0087]
The guide bar guide groove 153 provided upright on the back panel 57 is provided so as to abut against the back panel 17 of the apparatus main body 10 and partitions the space between the two panels to the left and right. Prevents the outdoor air sucked in and the exhausted indoor air from being mixed. Further, a heat insulating packing 160 is provided in the vicinity of the exhaust port 53 and the outdoor air suction port 56 of the back panel 17 of the apparatus body 10, and an intake / exhaust pipe (not shown) is connected through the heat insulating packing 160. It has come to be.
[0088]
In this embodiment, the intake and exhaust pipes are connected to the exhaust port 53 and the outdoor air intake port 56, respectively. This is to keep the noise during operation at a low level, but it is of course not limited to this.
[0089]
【The invention's effect】
  As described above, the air purifier with a ventilation function of the present invention takes in indoor air from the three indoor air intake ports and ventilates and cleans it, so that the indoor air can be cleaned very efficiently. At this time, in particular, since indoor air is sucked in from the indoor air suction port provided on the lower surface of the apparatus main body and purified air is blown out from the upper front of the apparatus main body, a large air circulation flow is formed in the room. There is an advantage that a wide range of indoor air can be efficiently ventilated and cleaned. In addition, these functions can be performed by two fans., ProvinceIt is also excellent in terms of energy and space saving.
[Brief description of the drawings]
FIG. 1 is a perspective view of an air cleaning device with a ventilation function according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view showing a state in which a lid of the air purifier with a ventilation function according to the embodiment of the present invention is removed.
FIG. 3 is a perspective view showing an air flow of the air cleaning device with a ventilation function according to the embodiment of the present invention.
FIG. 4 is a perspective view of a heat exchange element portion of the air cleaning device with ventilation function according to the embodiment of the present invention.
FIG. 5 is a plan view and a front view of an ionizer according to an embodiment of the present invention.
FIG. 6 is a cross-sectional view of an ionizer according to an embodiment of the present invention.
FIG. 7 is a cross-sectional view of an ionizer according to an embodiment of the present invention.
FIG. 8 is a perspective view showing a state in which a lid of the air purifier with a ventilation function according to the embodiment of the present invention is opened.
FIG. 9 is a partial cross-sectional view showing an engaged state of the lid body of the embodiment of the present invention with the apparatus main body.
FIG. 10 is a cross-sectional view showing the structure of an inspection window for a lid according to an embodiment of the present invention.
FIG. 11 is a diagram showing a schematic flow showing an air flow of the air purifier with a ventilation function according to the embodiment of the present invention.
FIG. 12 is a diagram showing a state of a circulating flow in a room according to the present invention.
FIG. 13 is a diagram showing an operation display unit of the ventilation function-equipped air cleaning device according to the embodiment of the present invention.
FIG. 14 is a view showing a shutter mounting structure of an air cleaning device with a ventilation function according to an embodiment of the present invention.
FIG. 15 is a view showing a shutter mounting structure of the air purifier with a ventilation function according to the embodiment of the present invention.
[Explanation of symbols]
1 Air purifier with ventilation function
10 Device body
11 First indoor air inlet
12 Second indoor air inlet
13 Air outlet
14 Bulkhead
20 Lid
21 3rd indoor air inlet
30 Heat exchange element
40 collection unit
41 Ionizer
42 Collector
50 Heat exchanger
60 Air Cleaner
70 First fan (axial fan)
80 Deodorization part
81 Photocatalytic filter element
82 Light source
90 Second fan (cross flow fan)

Claims (4)

In the air cleaning device with a ventilation function, which has a collection unit for ventilating indoor air and collecting dust particles in the air,
Exhaust means for sucking indoor air from the first indoor air suction port and exhausting the air from the exhaust port to the outside, sucking outdoor air from the outdoor air suction port, and sucking indoor air from the second indoor air suction port; The air is exhausted to the outside by the suction means, which is a fan provided on the downstream side of the collection section, which sends these to the collection section and blows clean purified air from the outlet to the room. Heat exchange means for exchanging heat between air and air sucked from the outside by the suction blow means, and the first indoor air suction port is provided at least on the lower surface side of the apparatus body, There is provided at least on the front side of the apparatus main body, a lower surface chamber the second indoor air inlet communicating with the upstream side of the clean front air chamber of the collecting portion is provided on the lower surface side of the apparatus main body And the indoor air flowing into the gas inlet and consists front room air suction port provided on the front side, the clean front air chamber is sucked from these underside indoor air inlet and the front room air suction port, the outdoor air intake Air with ventilation function, wherein the outdoor air that is sucked from the mouth and passes through the heat exchange means and flows into the pre-cleaning air chamber from the side flows in three directions substantially orthogonal to each other in three dimensions . Cleaning device. 2. The air purifier with a ventilation function according to claim 1 , wherein the exhaust means is a fan provided on a downstream side of the heat exchange means in a flow path for exhausting indoor air. 3. The air intake volume of the outdoor air intake port is approximately 1/10 of the total intake air volume of the lower surface side indoor air intake port and the front indoor air intake port. Air purifier with ventilation function. In any one of Claims 1-3 , a dust sensor is provided in the opposite side to the side where the said outdoor air in the said pre-cleaning air chamber in the upstream of the said collection part flows in, and this dust sensor is provided. An air purifier with a ventilation function that detects the amount of dust every predetermined time and adjusts the amount of suction and blowing by the suction and blowing means according to the amount of dust detected by the dust sensor every predetermined time apparatus.

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