JP4796234B2 - Ventilation equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ventilating apparatus that has a residential space and a sanitary space and ventilates a ventilation target area partitioned by the outside and a shield.
[0002]
[Prior art]
For example, in the case of an apartment house such as a condominium, as shown in FIG. 19, a plurality of living rooms LR as a residential space, a bathroom BR as a sanitary space, a dressing room DR, a toilet TR, etc. It has a house interior space as a ventilation target area that is partitioned from the outside by a shield such as a window. Conventionally, as shown in the figure, there is a ventilator configured as follows as a ventilator for ventilating the interior space of a house.
[0003]
That is, the total heat exchanger 30 for exchanging heat between the outside air introduced from the outside and supplied to the living space and the area air exhausted from the living space to the outside is installed in the ceiling of the hallway, for example. An intake duct 34 provided to connect the inlet 33 and the heat exchanger 30 opened to the entrance-side wall 32 serving as a shield for introducing outside air, and the inside air exhaust opening to the entrance-side wall 32 The exhaust duct 36 for connecting the exhaust port 35 and the heat exchanger 30 for exhausting the air in the heat-exchanged region, and the outside air that has been heat-exchanged between the heat exchanger 30 and each room LR is distributed and supplied For this purpose, a plurality of air supply ducts 44 connected to each other are provided, and the inside air is directly sucked from the grill plate provided in the heat exchanger 30.
An air supply fan 60 that sucks outside air from the air inlet 33 through the air intake duct 34 and exchanges heat in the heat exchanger 30 and then supplies the air to the respective rooms LR through the air supply duct 44; An exhaust fan 61 is provided to ventilate the indoor air sucked from the grill plate of the heat exchanger 30 through the exhaust duct 36 and then exhaust the air through the exhaust duct 35 to the outside.
[0004]
Therefore, while exhausting the indoor air in the residential space to the outside and ventilating the residential space by supplying the external air to the inside, the total heat (sensible heat and By exchanging heat (latent heat), for example, in the winter season, the heat energy stored in the room air is recovered and the outside air is reheated, so that ventilation can be performed with reduced heat loss.
[0005]
On the other hand, in addition to such a ventilation configuration, recently, an air conditioning facility that ventilates indoor air in a sanitary space such as a bathroom or a toilet may be provided. As such air conditioning equipment, bathroom drying operation for exhausting some air in the room while heating the bathroom, or heating the bathroom while hanging clothes such as laundry in the bathroom Some of them are equipped with a bathroom heater / dryer that can perform a clothes drying operation that exhausts a part of the air. Such air conditioning equipment is hereinafter referred to as sanitary air conditioning equipment.
Conventionally, as shown in FIG. 19, the sanitary air conditioning equipment as described above is provided in the ceiling part of the bathroom BR, and the indoor air of the bathroom BR is directly sucked from the grill plate of the apparatus and sucked in. The interior air of the toilet TR and the dressing room DR is taken in through the duct 20 and the wall air 32 is separated from the exhaust air outlet 35 for exhausting the indoor air through the dedicated exhaust duct 62. The air is exhausted to the outside through the ventilation exhaust port 63 formed in the opening.
[0006]
Such a configuration ensures that the indoor air in a sanitary space, which is a space separated from the residential space such as a bathroom or a toilet where odors are generated, is more reliably ventilated than the residential space. Thus, for example, even in a building where the airtightness of walls and windows is enhanced, the entire indoor space can be reliably ventilated.
[0007]
However, in the above-described conventional configuration, the air outlet for exhausting the air in the sanitary space separately from the air inlet for introducing the outside air and the air exhaust for discharging the air in the area of the living space are provided in the wall of the building. In addition, a long exhaust duct dedicated for connecting the air conditioner and the ventilation exhaust port is also required, which requires a lot of work and has a disadvantage that the installation work is troublesome. It was.
In particular, in the case where the air conditioning equipment as described above is installed as a retrofit, it is difficult to perform construction work such as opening formation work on the wall of the building or piping work of the exhaust duct, and the installation work of the air conditioning equipment is further troublesome It will be a thing.
[0008]
Therefore, in order to eliminate the disadvantages described above, a residential space air duct connecting the residential space and the heat exchanger, and a sanitary air duct connecting the sanitary space and the heat exchanger are provided, and the residential space is provided. Supply air from the sanitary space to the heat exchanger through the sanitary space air duct and supply heat to the heat exchanger through the sanitary space air duct. The exhaust air for exhausting the internal air in the residential space by exhausting the internal air from the space to the outside through the exhaust duct for exhausting the internal air through the exhaust duct to the shield, and the sanitary space The exhaust duct for exhausting the area air and the exhaust port are used in common, thereby reducing the troublesome construction work and facilitating the installation work (for example, Japanese Patent Laid-Open No. 2000). 74,445 JP).
[0009]
[Problems to be solved by the invention]
However, in the ventilation device of the above publication, a residential air duct for supplying the indoor air from the residential space to the heat exchanger, and a sanitary area for supplying the indoor air from the sanitary space to the heat exchanger. By installing the air duct, it is possible to use the exhaust duct and the exhaust port together to facilitate the installation work, but in addition to the residential air duct, a sanitary air duct is installed. However, there is a disadvantage that the construction work is still large and the installation work is troublesome.
[0010]
Further, in the ventilator of the above publication, the area air from the residential space and the area air from the sanitary space are supplied to the heat exchanger through separate ducts. In order to exchange heat between the internal air from the air and sanitary space and the outside air drawn from the intake port through the intake duct, the internal air from the residential space and the internal air from the sanitary space were merged After that, there is a possibility that the configuration for exchanging heat between the internal air from the residential space and the internal air from the sanitary space and the external air may be complicated.
[0011]
The present invention has been made paying attention to such a point, and its purpose is to partition not only the residential space but also the sanitary space, while separating the ventilation target area from the outside. In addition to reducing the troublesome construction work such as increasing the number of openings formed in the shielding body and installing a long exhaust duct, supply the internal air from the living space and sanitary space to the heat exchanger Ventilation that facilitates the installation work of the duct for the purpose and facilitates the configuration for heat exchange between the indoor air from the residential space and the internal air from the sanitary space and the outside air The point is to provide a device.
[0012]
[Means for Solving the Problems]
  According to the characteristic configuration of claim 1, in a ventilation device that includes a residential space and a sanitary space, and ventilates a ventilation target area partitioned by the outside and a shield,
  A heat exchanger for exchanging heat between outside air introduced from outside and supplied to the ventilation target area and inside air exhausted from the ventilation target area to the outside is provided, and a plurality of the sanitary spaces are provided. Of these sanitary spaces, some sanitary spaces are provided with sanitary air conditioners that air-condition the sanitary spaces,
  The sanitary air conditioner is configured to include a communication chamber that communicates with the plurality of sanitary spaces as an intake air of the area,
  An intake duct that connects the intake port opened to the shield and the heat exchanger for introducing outside air, an exhaust port for exhausting the inside air that opens to the shield and the heat exchanger in the region where heat exchange has been performed An exhaust duct connected to exhaust air, an air supply duct connecting the heat exchanger and the residential space to supply heat exchanged outside air, and the communication chamber and the heat exchanger A duct for collecting air is connected,
  The area inside the living space is configured to flow into the sanitary section,
  The ventilation target area is ventilated while exchanging heat between the internal air taken from the plurality of sanitary spaces and the external air introduced from the intake port.
[0013]
The outside air sucked from the air inlet opening in the shield is heat-exchanged by the heat exchanger through the air intake duct, and the heat-exchanged outside air is supplied to the residential space through the air supply duct. On the other hand, the area air taken from the sanitary space as the area air intake is heat-exchanged in the heat exchanger through the air collecting duct, and the area air that has been heat-exchanged is opened to the shield through the exhaust duct. It is exhausted to the outside through the exhaust outlet.
In the heat exchanger, heat exchange is performed between the outside air that is sucked from the intake port and supplied through the intake duct, and the internal air that is supplied from the sanitary space through the intake air collecting duct. That is, by this heat exchange, the outside air can be supplied to the living space as close to the room temperature as possible, and ventilation can be performed with less heat loss.
[0014]
Therefore, the area air in the sanitary space is directly taken into the air collecting duct, and the area air in the living space is taken into the air collecting duct through the sanitary space through, for example, a door gap, The inside air of the entire ventilation target area is exhausted to the outside, and the outside air is supplied to the living space, so that not only the living space but also the sanitary space can be well ventilated.
It is also possible to reduce the number of ventilation fans by combining the ventilation fan for exhausting the air inside the sanitary space and the ventilation fan for exhausting the air inside the residential space. In addition, since only the air inlet and the air outlet are formed in the shield, the air outlet for exhausting the area air in the sanitary space separately from the air outlet for exhausting the area air in the residential space. It is possible to reduce troublesome construction work such as increasing the opening formed in the shield for partitioning the ventilation target area and the outside, or installing a long exhaust duct, etc. .
[0015]
In addition, the area internal air from multiple sanitary spaces is taken into the sanitary air conditioner and heat exchanged through the air collecting duct in the heat exchanger. It is possible to use the duct for supplying the air in the area to the heat exchanger as a collecting duct, and the area air from multiple sanitary spaces is supplied to the heat exchanger through the air collecting duct. Therefore, it is not necessary to exchange heat with the outside air after combining the inside air from the living space and the inside air from the sanitary space, and the inside air and sanitary space from the living space are not required. Therefore, it is possible to facilitate the configuration for exchanging heat between the inside air and the outside air.
[0016]
In summary, according to the characteristic configuration of the first aspect, not only the residential space but also the sanitary space can be well ventilated, and the ventilation target area and the outside are partitioned. In addition to reducing the troublesome construction work such as increasing the number of openings formed in the shielding body and installing a long exhaust duct, supply the internal air from the living space and sanitary space to the heat exchanger Ventilation that facilitates the installation work of the duct for the purpose and facilitates the configuration for heat exchange between the indoor air from the residential space and the internal air from the sanitary space and the outside air We came to be able to provide the device.
[0017]
According to the characteristic structure of Claim 2, in Claim 1, the said area | region air supplied to the said heat exchanger through the said air collection duct is made to flow to the said exhaust duct bypassing the said heat exchanger. A bypass path is provided, and the flow state of the internal air can be switched between a heat exchange state in which the internal air is supplied to the heat exchanger and a bypass state in which the internal air is supplied to the exhaust duct through the bypass path. A path switching means is provided.
[0018]
When the flow state of the inside air is switched to the heat exchange state by the flow path switching means, the inside air is supplied to the heat exchanger through the air collecting duct and heat exchange is performed. Then, if the flow state of the internal air is switched to the bypass state by the flow path switching means, the internal air is supplied to the exhaust duct through the bypass passage without being heat-exchanged around the heat exchanger. Will be.
[0019]
For example, in winter and the like, it is considered that the temperature of the area air in the entire ventilation target area is often higher than the outside air temperature in the winter area, and the area air that is exhausted when heat exchange is performed. Since the outside air that has been recovered and is supplied to the residential space is reheated and supplied in a state of approaching the room temperature, heat loss can be reduced.
However, in summer and the like, when the bathroom drying operation or the clothes drying operation is performed, the temperature of the area air may be higher than the outside air temperature. When the heat exchange as described above is performed in such a state, the temperature of the outside air that is recovered and is supplied to the residential space may be increased. As a result, air that is hotter than the outside air is supplied to the living space despite the cooling, and heat loss is disadvantageously increased.
[0020]
Therefore, for example, when the heat loss becomes large, the inconvenience of the large heat loss can be avoided by switching the flow state of the inside air to the bypass state by the flow path switching means. This is possible and provides suitable means for carrying out claim 1.
[0021]
According to a characteristic configuration of a third aspect, in the second aspect, the heat exchanger, an intake duct connection port to which the intake duct is connected, an exhaust duct connection port to which the exhaust duct is connected, the supply air A heat exchange unit including an air supply duct connection port to which an air duct is connected and a gas collection duct connection port to which the air collection duct is connected is provided, and the bypass path and the flow path switching unit include: The heat exchange unit is integrally provided.
[0022]
Therefore, when installing this apparatus, after installing the heat exchange unit at a predetermined installation location, it can be dealt with by simply connecting the ducts to the corresponding connection ports, respectively. Troublesome work such as installing the means separately from the heat exchange unit is unnecessary, and the labor of the installation work can be reduced, and a suitable means for carrying out claim 2 can be obtained.
[0023]
According to the characteristic structure of Claim 4, in Claim 3, the said heat exchange unit is comprised so that the said duct for air collection can be connected to the different position.
That is, for example, the floor plan differs depending on the house, such as a symmetrical floor plan of an apartment, so the sanitary air conditioner is located on the right side or the left side of the heat exchange unit depending on the house. For example, the positional relationship between the sanitary air conditioner and the heat exchange unit is different.
Therefore, if the air collection duct connecting the communication chamber and the heat exchange unit in the sanitary air conditioner can be connected to only one position of the heat exchange unit, the work of connecting the heat exchange unit and the air collection duct May become complicated.
[0024]
However, according to the characteristic configuration of the fourth aspect, since the heat exchange unit is configured to be able to connect the air collecting duct to different positions thereof, the position of the heat exchange unit and the sanitary air conditioner Depending on the relationship, the position of the heat exchange unit connecting the air collection duct can be changed, and the connection work between the heat exchange unit and the air collection duct can be facilitated.
[0025]
  According to the characteristic structure of Claim 5, in Claim 4, the said heat exchange unit is in the position which differs in it.In the opening for the bypass unit connection portIt is configured with a replaceable bypass unit,
  The bypass unit is configured to include the bypass path and the flow path switching means,
  The air collecting duct is configured to be connectable to the bypass unit.,
  An opening for the bypass unit connection port includes a heat exchanger connection port for supplying the internal air from the air collection duct to the heat exchanger, and a bypass from the air collection duct that bypasses the exchanger. It is composed of a bypass passage connection port for allowing the inside air to flow into the exhaust duct,
  When the flow path switching means is switched to the heat exchange state, the inside air from the air collecting duct is supplied to the heat exchanger connection port, and when the flow path switching means is switched to the bypass state, The internal air from the air collecting duct flows through the bypass path and is supplied to the bypass passage connection port.Yes.
[0026]
That is, according to the positional relationship between the heat exchange unit and the sanitary air conditioner, the position of the heat exchange unit to which the bypass unit including the bypass path and the flow path switching unit is attached is changed, and the duct for collecting air is installed in the bypass unit. Therefore, even if the heat exchange unit does not have multiple bypass paths and flow path switching means, the bypass unit is replaced with a different position on the heat exchange unit, and the air collecting duct is connected to the bypass unit. By simply doing this, it is possible to supply the internal air from the sanitary space to the heat exchanger, or to bypass the heat exchanger and supply it to the exhaust duct, thereby reducing costs. It becomes.
[0027]
According to the characteristic structure of Claim 6, in any one of Claims 2-5, in order to determine whether the flow state of the inside air should be the heat exchange state or the bypass state Based on a determination condition set in advance, a flow state determination unit that determines the flow state, and based on a determination result of the flow state determination unit, the flow state is automatically switched. And control means for controlling the flow path switching means.
[0028]
A discrimination condition for discriminating whether the flow state of the internal air supplied to the heat exchanger through the air collecting duct should be the heat exchange state or the bypass state is set in advance. The flow state determination means determines the flow state of the inside air based on the determination condition.
Then, the control means controls the flow path switching means so as to automatically switch the flow state based on the determination result. That is, when it is determined that the heat exchange state should be established, the flow path switching means is controlled so that the inside air is switched to the heat exchange state supplied to the heat exchanger, and the bypass state is set. If it is determined that it should be, the flow path switching means is controlled so as to switch to the bypass state where the inside air is supplied to the exhaust duct through the bypass path.
[0029]
Therefore, since the flow state automatically switches to an appropriate state, there is no troublesome operation compared to a configuration in which the flow is artificially switched, and unexpectedly large heat loss occurs due to forgetting the operation. Ventilation can be performed in a state where inconvenience such as becoming a state is avoided, and a suitable means for implementing any one of claims 2 to 5 can be obtained.
[0030]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a ventilator according to the present invention will be described with reference to the drawings.
[First Embodiment]
For example, as shown in FIG. 1, the ventilator includes a plurality of living rooms LR as residential spaces, and a bathroom BR, a dressing room DR, and a toilet TR as sanitary spaces, and shields such as peripheral walls and windows. The interior space of the house that is partitioned from the outside is the ventilation target area, and the interior space of the house is ventilated.
[0031]
In this ventilator, total heat (sensible heat and latent heat) is exchanged between the outside air introduced from outside and supplied to the interior space of the house and the inside air as the area air exhausted from the interior space of the house to the outside. The total heat exchanger 30 is provided, and the bathroom BR, the undressing room DR, and the function of ventilating the whole interior space of the house from the interior space of the bathroom TR, the toilet TR, and exhausting the air to the outside for ventilation A sanitary air conditioner having a function of heating the bathroom is provided in a state of being installed on the ceiling of the bathroom BR.
[0032]
Next, the configuration of the sanitary air conditioner will be described.
As shown in FIG. 2, this air conditioner includes a ventilation fan 15 and a device main body M, a dressing room DR, and a dressing room DR that are provided on the ceiling of the bathroom BR so that the ventilation fan 15 sucks into the bathroom BR. The suction grill 19 provided on the ceiling of each toilet TR and the suction duct 20 that connects the suction grill 19 and the apparatus main body M so that the ventilation fan 15 performs an intake action, and the suction air of the ventilation fan 15 is used as the total heat. A relay duct 22 that discharges to the exchanger 30, a control unit 23 that controls various controls, a main remote controller Cm that is provided in the dressing room DR and the like and commands various control information to the control unit 23, and a sub-remote controller provided in the toilet TR It is configured with Cs and the like.
[0033]
The apparatus body M includes a ventilation unit M1 as a communication room and a bathroom heating unit M2, and is configured by integrally assembling the ventilation unit M1, the bathroom heating unit M2, and the control unit 23, and a dressing room DR, In addition to the function of sucking and exhausting air from the toilet TR and the bathroom BR, the bathroom BR has a function of drying and heating the bathroom BR.
[0034]
The bathroom heating unit M2 includes a casing 1 having an opening on the lower side and an exhaust communication port 2 for exhausting ventilation air on one side surface, and a suction part 3 and an outlet part 4 as a bathroom intake passage. A grill plate 5 is provided so as to close the lower side.
A circulation air passage 6 that connects the suction portion 3 and the blowout portion 4 is defined in the casing 1. The circulation air passage 6 has an intake air action on the suction portion 3, and sucks air into the blowout portion 4. A circulation fan 7 that ventilates air to be sent to the exhaust communication port 2 and a heat exchanger 8 that heats the air flowing through the circulation air path 6 are provided. The heat exchanger 8 includes an external heat source ( A hot water circulation path 9 for circulating and supplying hot water from an unillustrated) is connected, and a thermal valve 10 for intermittently supplying hot water to the heat exchanger 8 is provided.
[0035]
The ventilation unit M1 is provided with a bathroom inlet 12 on one side, two other room inlets 13 on the other side, and three in a casing 11 with an exhaust port 14 on the other side. A ventilation fan 15 is provided that acts as an intake air to the intake ports 12, 13, 13, and acts to ventilate the intake air so as to be sent to the exhaust port 14.
[0036]
A ventilation unit casing is provided on the side of the bathroom heating unit casing 1 in a state where the exhaust communication port 2 of the bathroom heating unit casing 1 and the bathroom inlet port 12 of the ventilation unit casing 11 overlap each other. 11 is attached in a cantilever position, and ventilation unit M1 and bathroom heating unit M2 are integrated in a state in which ventilation fan 15 is inhaled into circulation air passage 6 through bathroom inlet 12 and exhaust communication port 2. It is assembled and assembled.
A shutter plate 17 that can be opened and closed by swinging around the axis of the horizontal axis is provided, and the shutter plate 17 is locked and held by the attractive force of the electromagnet 18 in a closed position, and the lock is released. If there is an intake action by the ventilation fan 15, the shutter plate 17 is in the horizontal posture and the exhaust communication port 2 is opened.
Moreover, in the casing 1 for bathroom heating units, a temperature sensor 24 for detecting the temperature of the air in the bathroom BR sucked from the suction part 3 is provided in the vicinity of the suction part 3.
[0037]
And the apparatus main body M comprised as mentioned above installs the bottom face opening part of the casing 1 for bathroom heating units facing the opening part for ventilation formed in the ceiling part of bathroom BR, and the ceiling part of bathroom BR The grill plate 5 is attached from below. Further, the inlet 13 for each other room of the ventilation unit M1 and the suction grille 19 of each of the dressing room DR and the toilet TR are connected by a suction duct 20, and the exhaust port 14 of the ventilation unit M1 and a total heat exchanger described later. 30 is connected to the relay duct 22.
[0038]
For example, the circulation fan 7 is ventilated while circulating and supplying hot water to the heat exchanger with the shutter plate 17 closed, and the circulation and supply state of the hot water is controlled based on the detection information of the temperature sensor to achieve the target temperature. Heating operation to heat the bathroom can be performed.
By operating the ventilation fan 15 to ventilate, it acts on the bathroom BR through the bathroom inlet 12, the exhaust communication port 2, and the circulation air passage 6, and passes through each other room inlet 13 and each suction duct 20. It is possible to perform a ventilation operation in which the air collected in this way is exhausted through the relay duct 22 by acting on the dressing room DR and the toilet TR.
The doors of each living room LR other than the sanitary space consisting of the bathroom BR, the dressing room DR, and the toilet TR are provided with undercuts and louvers to allow ventilation between the sanitary space and each living room LR. It is provided, and air is sucked into the interior space of the house including the sanitary space and the residential space by this ventilation operation. Accordingly, each of the suction ducts 20 and the relay ducts 22 corresponds to an air collection duct.
[0039]
For example, after the bathing is completed, the circulation fan 7 is ventilated while the hot water is circulated and supplied to the heat exchanger, and the bathroom is heated to ventilate the ventilation fan 15 without closing the shutter plate 17. The bathroom drying operation for drying the interior of the bathroom can be performed, and the clothes drying operation can be performed by hanging clothes such as laundry in the bathroom under the same operation state.
[0040]
Next, the configuration of the total heat exchanger 30 will be described. As shown in FIGS. 3 and 5, the total heat exchanger 30 is provided in a state where a plurality of partition plates 31 and a flow path forming plate 32 bent in a corrugated shape are alternately stacked. The flow path forming plates 32 are alternately oriented so that the first air flow path L1 indicated by the solid line in FIG. 5 and the second air flow path L2 indicated by the broken line are formed in an independent state. They are arranged differently and are configured to perform total heat exchange between the air flowing through these two air flow paths L1 and L2. Specifically, the external air introduced from the outside and supplied to the interior space of the house is passed through the first air flow path L1, and the internal air exhausted to the outside from the interior space of the house is the second air flow path. A state where heat loss is reduced by collecting heat energy held in the exhausted internal air and supplying the outside air as close to the indoor temperature as possible to the residential space by exchanging heat through L2 and exchanging heat. Ventilation can be performed with this.
[0041]
And as shown in FIG.1 and FIG.3, the intake duct 34 which connects the inlet port 33 opened to the wall part 32 of the entrance as a shield, and the total heat exchanger 30 for external air introduction, the entrance side An exhaust duct 36 connecting the exhaust port 35 for exhausting the internal air in the wall and the total heat exchanger 30 to exhaust the internal air that has undergone total heat exchange, and the total heat exchanger 30 and each living room Supply ducts 37 are connected to distribute the outside air after the total heat exchange, and the intake duct connection port 38 to which the total heat exchanger 30 and the intake duct 34 are connected, and the exhaust duct 36. An exhaust duct connection port 39 to which the supply duct 37 is connected, and an air collection duct connection port 41 to which the relay duct 22 from the sanitary air conditioner is connected. However, Tsu DOO state heat exchange unit NU provided is provided, the heat exchange unit NU is installed on a ceiling portion or the like of the corridor. In this heat exchange unit NU, outside air is introduced from the intake port 33 through the intake duct 34, and outside air after heat exchange in the total heat exchanger 30 is supplied to each living room LR through a supply duct 37. An air supply fan 42 that ventilates the air is provided. The supply duct connection port 40 is one, but the supply duct 37 is distributed to a plurality of (four in the example shown in the figure) branch ducts 44 by a distribution supply device 43 provided in the middle of the supply duct 37. Air is supplied to the room (LR) in four places. Therefore, the supply duct 37 and the branch duct 44 correspond to an air supply duct.
[0042]
Therefore, the outside air is introduced from the air inlet 33 through the air intake duct 34 by the ventilation operation by the air supply fan 42, and heat is exchanged in the total heat exchanger 30, and then supplied to the respective rooms LR. . On the other hand, by the ventilation operation by the ventilation fan 15 in the sanitary air conditioner, the sanitary air passes through the undercuts and galleys as well as the internal air in the sanitary space including the bathroom BR, the dressing room DR, and the toilet TR. The air inside each room LR other than the working space is also collected and exhausted to the outside through the relay duct 22, the total heat exchanger 30, and the exhaust duct 36. At this time, the total heat exchanger 30 exchanges heat between the outside air introduced from the outside and supplied to each room LR and the inside air exhausted to the outside from the sanitary space.
[0043]
A bypass passage 45 for allowing the internal air supplied to the total heat exchanger 30 through the relay duct 22 to flow to the exhaust duct 36 bypassing the total heat exchanger 30, and the internal air being supplied to the total heat exchanger 30 The heat exchange unit NU is integrally provided with a flow path switching means RK capable of switching the flow state of the internal air between a heat exchange state to be performed and a bypass state to be supplied to the exhaust duct through the bypass passage. .
That is, as shown in FIG. 3, a bypass passage is provided in the heat exchange unit NU from the middle of the exhaust inlet passage 46 from the air collection duct connection port 41 to the second air flow passage L2 in the total heat exchanger 30. 45 is branched and the other end side of the bypass passage 45 is connected to an exhaust outlet passage 47 extending from the second air flow passage L2 to the exhaust duct 36.
Then, at the branch portion from the exhaust inlet passage 46, the internal air guided through the air collecting duct connection port 41 by closing the bypass passage 45 is directly supplied to the second air flow passage L2 through the exhaust inlet passage 46. The position can be switched between the exchange action position and the bypass action position where the exhaust inlet passage 46 is closed and the internal air bypasses the total heat exchanger 30 through the bypass passage 45 and is supplied to the exhaust outlet passage 47. A shielding plate 48 is provided. As shown in FIGS. 6 and 7, the switching shielding plate 48 is provided so as to be rotatable around the axis of the rotation operation shaft 49 provided on one end side, and the rotation operation shaft 49 is connected to the electric motor 50. Thus, an operating mechanism 52 is provided that is rotated through the worm gear speed reduction mechanism 51 at a low speed between the heat exchange action position and the bypass action position. In the operation mechanism 52, when the electric motor 50 starts a switching operation based on the switching command and the switching shielding plate 48 reaches any one of the operation positions, the contact piece 53 provided on the worm gear 51a becomes the limit switch 54. When the limit switch 54 is turned on by operating, the operation of the electric motor 50 is stopped. A seal packing 55 for preventing air leakage is provided at a location on the inner surface of the exhaust inlet passage 46 where the oscillating end of the switching shielding plate 48 contacts.
A flow path switching means RK is constituted by the switching shielding plate 48, the operation mechanism 52, and the like.
[0044]
The switching operation of the flow state by the flow path switching means RK may be arbitrarily switched by a user, but in this ventilator, whether the flow state of the internal air should be the heat exchange state or not On the basis of a discrimination condition set in advance to determine whether the bypass state should be established, the flow state determination means TH for determining the flow state, and automatically based on the determination result of the flow state determination means TH Control means S for controlling the flow path switching means RK is provided so as to switch the flow state.
[0045]
More specifically, as shown in FIGS. 3 and 4, exhaust for detecting the temperature of internal air for exhausting from the sanitary space supplied to the heat exchange unit NU through the relay duct 22 from the air conditioner. A temperature sensor 56 is provided in the exhaust inlet passage 46. Further, the supply air temperature sensor 57 for detecting the temperature of the outside air sucked through the intake duct 34 extends from the intake duct connection port 38 to the upper side in the flow direction of the first air flow path L1 in the total heat exchanger 30. It is provided in the route part. A microcomputer-based control device 58 that controls the operation of the electric motor 50 based on the detection information of these temperature sensors is provided.
[0046]
If the detection value of the supply air temperature sensor 57 is lower than the detection value of the exhaust gas temperature sensor 56, the control device 58 determines that the internal air flow state should be the heat exchange state, and If the switching shielding plate 48 is maintained at the heat exchange working position and the detected value of the supply air temperature sensor 57 is higher than the detected value of the exhaust temperature sensor 56, the flow state of the internal air should be the bypass state. And the switching shielding plate 48 is controlled to be maintained at the bypass operating position.
Further, when the detected value of the supply air temperature sensor 57 changes from the state where the detection value of the supply air temperature sensor 57 is lower than the detection value of the exhaust temperature sensor 56 to the state where the detection value of the supply air temperature sensor 57 is higher than the detection value of the exhaust temperature sensor 56. 58, when the electric motor 50 is automatically operated to switch the switching shielding plate 48 from the heat exchange working position to the bypass working position, and the limit switch 54 corresponding to the bypass working position is turned on, the electric motor 50 The drive is stopped. Further, when the detection value of the supply air temperature sensor 57 changes from the state where the detection value of the supply air temperature sensor 57 is higher than the detection value of the exhaust temperature sensor 56 to the state where the detection value of the supply air temperature sensor 57 is lower than the detection value of the exhaust temperature sensor 56. 58 automatically operates the electric motor 50 to switch the switching shielding plate 48 from the bypass operation position to the heat exchange operation position, and when the limit switch 54 corresponding to the heat exchange operation position is turned on, the electric motor 50 Stop driving.
[0047]
Therefore, for example, in the summer, when a bathroom drying operation or a clothing drying operation is performed, heat exchange by the total heat exchanger 30 is not performed. It is possible to automatically avoid the disadvantage that the temperature of the outside air supplied to the residential space becomes higher, and air that is hotter than the outside air is supplied to the residential space even though it is cooled, resulting in a large heat loss. become.
[0048]
Each of the supply air temperature sensor 57, the exhaust gas temperature sensor 56, and the flow state determination processing of the control device 58 based on the temperature detection information constitutes the flow state determination means TH. The control means S is constituted by the operation process.
[0049]
[Second Embodiment]
This 2nd Embodiment is another embodiment of the heat exchange unit in the said 1st Embodiment, The another embodiment is described based on drawing.
Incidentally, since other configurations are the same as those in the first embodiment, detailed description thereof is omitted by showing the same reference numerals.
[0050]
The heat exchange unit NU includes a bypass unit BU that can be replaced at different positions. The bypass unit BU includes a bypass path 45 and a flow path switching means RK (from the switching shielding plate 48, the operation mechanism 52, and the like). The relay duct 22 as the air collecting duct is configured to be connectable to the bypass unit BU.
And the heat exchange unit NU is comprised so that the duct 22 for relay can be connected to the different position.
[0051]
More specifically, as shown in FIGS. 8 to 12, the heat exchange unit NU has an air supply fan 42 for introducing outside air into the rectangular casing 64 from the outside and supplying the air into the house interior space. , A total heat exchanger 30, an exhaust fan 65 for exhausting and ventilating the internal air from the interior space of the house, and the like, and an intake duct connection port 38, an exhaust duct connection port 39, and an air supply duct connection port 40. In addition, an opening 66 for a bypass unit connection port to which the bypass unit BU is connected is provided.
The bypass unit BU is provided with an air collection duct connection port 41 for connecting the relay duct 22 and is operated to ventilate the exhaust fan 65, whereby the bathroom intake port 12, the exhaust communication port 2, and the circulation air path. 6 and the bathroom BR through the other air inlets 13 and the air intake ducts 20 and the air to the dressing room DR and the toilet TR, and the collected air is exhausted through the relay duct 22. It is configured to perform ventilation operation.
[0052]
Incidentally, two air supply duct connection ports 40 are provided side by side, a supply duct 37 is connected to each of the two air supply duct connection ports 40, and a distribution supply device 43 is provided in the supply duct 37. The outside air from the outside is configured to be supplied to each living space LR.
[0053]
Further, as shown in FIG. 9, the sanitary air conditioner includes a ventilation unit M1 and a bathroom heating unit M2 as a communication room, and the ventilation unit M1, the bathroom heating unit M2, and the control unit 23 are integrated. In addition to the function of taking in and exhausting air from the dressing room DR, the toilet TR and the bathroom BR, it has a function of drying and heating the bathroom BR.
The sanitary air conditioner in the second embodiment is different from the sanitary air conditioner in the first embodiment only in that the ventilation fan 15 is not provided. Since the configuration is the same as the sanitary air conditioner in the first embodiment, detailed description of the sanitary air conditioner is omitted by showing the same reference numerals as in the first embodiment in FIG. To do.
[0054]
The heat exchange unit NU is configured to be symmetrical in the short direction of the rectangular casing 64, and the opening 66 for the bypass unit connection port faces in the short direction of the rectangular casing 64. And the bypass unit BU is configured to be replaceable at a position facing in the short direction of the rectangular casing 64 of the heat exchange unit NU.
That is, the bypass unit BU is connected to the left lateral side with respect to the heat exchange unit NU as shown in FIG. 10 (a), or the heat exchange unit as shown in FIG. 10 (b). Of the two bypass unit connection openings 66, the bypass unit connection opening 66 that is not connected to the bypass unit BU is connected to the NU. A shielding plate 69 that shields the light is provided.
[0055]
A description will be given of the flow state of the outside air and the inside air in the heat exchange unit NU.
The intake duct connection port 38 and the air supply duct connection port 40 are arranged so as to be opposed to each other in the longitudinal direction of the rectangular casing 64, and are introduced from the outside and supplied to the interior space of the house. Is formed in the order of the air intake duct connection port 38, the air supply fan 42, the total heat exchanger 30, and the air supply duct connection port 40 in this order.
Further, in a state independent of the outside air flow path 67, the internal air from the house interior space is passed through the bypass unit connection port opening 66, the total heat exchanger 30, the exhaust fan 65, and the exhaust duct connection port 39 in this order. An internal air flow path 68 for allowing flow is formed.
[0056]
The opening 66 for the bypass unit connection port bypasses the heat exchanger connection port 66a for supplying the internal air from the interior space of the house to the total heat exchanger 30 and the exhaust heat fan bypassing the total heat exchanger 30. And a bypass passage connection port 66b for supplying to 65.
The bypass unit BU is attached to the heat exchange unit NU with the opening on the end side of the bypass passage 45 connected to the bypass passage connection port 66b and the other opening connected to the heat exchanger connection port 66a. The internal air from the house interior space supplied from the air collection duct connection port 41 through the relay duct 22 is configured to be supplied to either the heat exchanger connection port 66a or the bypass passage connection port 66b.
[0057]
That is, the internal air from the house interior space is supplied to the bypass unit BU from the air collecting duct connection port 41 through the relay duct 22, but as shown in FIG. When the RK is switched to the heat exchange state, the internal air is supplied to the total heat exchanger 30 through the heat exchanger connection port 66a of the heat exchange unit NU and is subjected to heat exchange. The air is exhausted through the exhaust duct 36.
Further, as shown in FIG. 13B, when the flow path switching means RK is switched to the bypass state, the internal air flows through the bypass path 45 in the bypass unit BU and the bypass path of the heat exchange unit NU. The air is exhausted through the exhaust duct 36 by the exhaust fan 65 through the connection port 66b.
Incidentally, FIG. 13 shows an AA cross-sectional view in FIG.
[0058]
In this way, the floor plan differs depending on the house, such as a symmetrical floor plan of an apartment, and the apparatus body M of the sanitary air conditioner is located on the right side or the left side with respect to the heat exchange unit NU. Even if the positional relationship between the sanitary air conditioner and the heat exchange unit is different, the connection position of the bypass unit BU is changed according to the positional relationship between the heat exchange unit NU and the device body M of the sanitary air conditioner. The relay unit 22 is connected to the bypass unit BU so as to facilitate the installation work.
[0059]
Incidentally, the switching by the flow path switching means RK will be described. In the second embodiment, in the summer, for example, when the bathroom drying operation or the clothing drying operation is performed, the total heat exchanger 30 generates heat. If exchange is performed, high-temperature air is supplied to the air-cooled residential space, and if the heat energy of the supply air is lost, the flow path switching means RK is switched to the bypass state. Has been.
[0060]
[Third Embodiment]
This 3rd Embodiment shows another embodiment of the heat exchange unit NU in the said 2nd Embodiment, The another embodiment is described based on drawing.
Incidentally, since other configurations are the same as those in the first and second embodiments, detailed description thereof will be omitted.
The sanitary air conditioner in the third embodiment has the same configuration as the sanitary air conditioner in the second embodiment.
[0061]
That is, in the second embodiment, the heat exchanging unit NU can be connected to the relay duct 22 at different positions of the heat exchanging unit NU. The example in which the bypass unit BU is configured to include the bypass path 45 and the flow path switching unit RK has been shown. However, in the third embodiment, the heat exchange unit NU is another embodiment. The bypass path 45 and the flow path switching means RK are provided in the rectangular casing 64 of the heat exchange unit NU.
[0062]
As shown in FIGS. 14 to 16, the heat exchange unit NU includes a rectangular casing 64 provided with an air supply fan 42, a total heat exchanger 30, an exhaust fan 65, and the like, and an intake duct connection port 38, An exhaust duct connection port 39, an air supply duct connection port 40, and an air collection duct connection port 41 are provided.
The heat exchange unit NU includes the total heat exchanger 30 so as to be movable in one rectangular side or the other lateral side (the right lateral side or the left lateral side in FIG. 14) in the rectangular casing 64. Two openings 41a for the air collection duct connection port are provided so as to face each other in the short direction of the rectangular casing 64.
Then, the total heat exchanger 30 is moved so that the relay duct 22 is connected to one of the openings 41a for the two air collecting duct connection ports, and a shielding plate 69 for shielding the opening is provided on the other side. Thus, the relay duct 22 is configured to be connectable to different positions of the heat exchange unit NU.
[0063]
When the description is added, as shown in FIG. 14A, the total heat exchanger 30 is moved to the right lateral side of the casing 64, and the space formed on the left lateral side of the casing 64 by the movement. In addition, the bypass passage 45 and the flow path switching means RK are disposed, and the relay duct 22 is connected to the left lateral side of the casing 64, or, as shown in FIG. The container 30 is moved to the left lateral side of the casing 64, and the bypass path 45 and the flow path switching means RK are disposed in the space formed on the right lateral side of the casing 64 by the movement, for relaying. The duct 22 is configured to be connected to the right side of the casing 64.
[0064]
Then, the internal air from the house interior space is supplied into the casing 64 from the air collection duct connection port 41, but the flow path switching means RK is switched to the heat exchange state as shown in FIG. Then, the internal air is supplied to the total heat exchanger 30 for heat exchange and then exhausted through the exhaust duct 36 by the exhaust fan 65.
As shown in FIG. 17B, when the flow path switching means RK is switched to the bypass state, the internal air flows through the bypass passage 45 and passes through the exhaust duct 36 by the exhaust fan 65. Exhausted.
Incidentally, FIG. 17 shows an AA cross-sectional view in FIG.
[0065]
[Another embodiment]
Hereinafter, other embodiments are listed.
[0066]
(1) In the first to third embodiments, as the flow state determination unit, the heat exchange is performed on the flow state of the internal air based on the supply air temperature sensor, the exhaust gas temperature sensor, and the temperature detection information thereof. Although it was set as the structure which discriminate | determines whether it should be in a state or the said bypass state, it is good not only as such a structure but as the following structures.
[0067]
For example, a period (for example, between April and November) in which the temperature of the outside air to be taken in is considered to be higher than the temperature of the internal air to be exhausted is preset and stored in the memory, and the period In the interior, when the bathroom drying operation or clothes drying operation as described above is performed, the flow state of the internal air is automatically determined as the bypass state, and the ventilation operation other than the above and the shutter plate 17 are closed to close the bathroom. It is configured to automatically determine the flow state of the internal air as the heat exchange state when performing a heating operation or the like, and to automatically determine the heat exchange state during a period other than the period. It may be configured as follows.
[0068]
Further, instead of the configuration in which the period is set in advance and stored in the memory, an arbitrary switching condition is designated by an artificial input operation of the user by using an artificial operation means such as the main remote controller. It is good also as a structure discriminated by conditions.
[0069]
(2) In the first to third embodiments, the flow path switching means RK has a heat exchange state in which the internal air is supplied to the total heat exchanger 30 and a bypass state in which the internal air is supplied to the exhaust duct 36 through the bypass passage 45. In addition, the example in which the flow state of the internal air is switched is shown. However, in addition to the heat exchange state and the bypass state described above, the flow path switching unit RK has a part of the internal air that is totally heated. It is also possible to implement the configuration in such a manner that it can be switched to an intermediate state in which it is supplied to the exchanger 30 and the remaining part is supplied to the exhaust duct 36 through the bypass 45.
In this case, in order to ventilate the bathroom BR, when the sanitary air conditioner is ventilated, the flow switching means RK can switch the internal air flow state to the intermediate state. .
[0070]
(3) In the first to third embodiments, the flow path switching unit is automatically controlled based on the determination result of the flow state determination unit. For example, the path switching means may be configured to be switched by a manual operation. In that case, a configuration in which the result of the determination by the flow state determining means is visually checked and switched, or a configuration in which the switching operation is appropriately performed in accordance with the usage status of the sanitary air conditioner may be employed.
[0071]
(4) In the first embodiment, the bypass path and the flow path switching unit are integrally provided in the heat exchange unit. However, the present invention is not limited to this configuration. It may be provided in a separate and independent state. For example, the bypass path may be branched from the outer side of the heat exchange unit, and the switching shield plate may be provided at the branch portion.
[0072]
(5) In the first embodiment, the bypass path is provided, and the internal air as the internal air is supplied to the total heat exchanger, and is supplied to the exhaust duct through the bypass path. Although an example in which the flow state of the internal air can be switched to and from the bypass state is illustrated, the internal air may be constantly supplied to the total heat exchanger without providing such a bypass passage. .
[0073]
(6) In the first to third embodiments, as a heat exchanger for exchanging heat between outside air introduced from the outside and supplied to the ventilation target area and inside air exhausted from the ventilation target area to the outside, The total heat exchanger that exchanges the total heat (sensible heat and latent heat) between the outside air and the inside air has been exemplified. However, the present invention is not limited to such a configuration, and the configuration uses a heat exchanger that exchanges only sensible heat. It is good.
[0074]
(7) In the third embodiment, the bypass duct 45 and the flow path switching means RK are provided in the casing 64 of the heat exchange unit NU, and the relay duct 22 is connected to the right lateral side of the casing 64. Alternatively, an example of connection to the left lateral side of the casing 64 has been shown. For example, as shown in FIG. 18, the bypass 45 and the flow path switching means RK are connected to the right lateral side and the left lateral of the casing 64. The relay duct 22 may be provided on the side and connected to the right side of the casing 64 or connected to the left side of the casing 64.
[0075]
(8) In the second and third embodiments, the heat exchange unit NU is configured to be able to connect the relay duct 22 to two different positions thereof, but the connection position of the relay duct 22 is 2 It is not restricted to a place, It is also possible to implement as 3 places or more.
[Brief description of the drawings]
FIG. 1 is a plan view of a house showing an installation state of a ventilation device according to a first embodiment.
FIG. 2 is a side view showing a schematic configuration of an air conditioner.
FIG. 3 is a diagram showing a heat exchange unit
FIG. 4 is a control block diagram.
FIG. 5 is a diagram showing a total heat exchanger
FIG. 6 is a diagram showing an operation mechanism.
FIG. 7 is a sectional view showing a flow path switching state.
FIG. 8 is a plan view of a house showing an installation state of a ventilation device according to a second embodiment.
FIG. 9 is a side view showing a schematic configuration of an air conditioner according to a second embodiment.
FIG. 10 is a plan view of a heat exchange unit in the second embodiment.
FIG. 11 is a sectional view of a heat exchange unit according to the second embodiment.
FIG. 12 is a side view of a heat exchange unit according to the second embodiment.
FIG. 13 is a cross-sectional view showing a flow path switching state in the second embodiment.
FIG. 14 is a plan view of a heat exchange unit according to the third embodiment.
FIG. 15 is a sectional view of a heat exchange unit according to the third embodiment.
FIG. 16 is a side view of a heat exchange unit according to the third embodiment.
FIG. 17 is a cross-sectional view showing a flow path switching state in the third embodiment.
FIG. 18 is a plan view of a heat exchange unit according to another embodiment.
FIG. 19 is a plan view of a house showing the installation state of a conventional ventilation device.
[Explanation of symbols]
20,22 Air collection duct
30 heat exchanger
32 Shield
33 Inlet
34 Air intake duct
35 Exhaust port
36 Exhaust duct
37,44 Air supply duct
38 Inlet duct connection port
39 Exhaust duct connection port
40 Supply duct connection port
41 Air collection duct connection port
45 Bypass
BR, DR, TR Sanitary space
BU bypass unit
LR residential space
M1 communication room
NU heat exchange unit
RK channel switching means
TH continuity state discrimination means
S control means

Claims (6)

A ventilation device having a residential space and a sanitary space, and ventilating a ventilation target area partitioned by the outside and a shield,
A heat exchanger for exchanging heat between outside air introduced from the outside and supplied to the ventilation target area and the inside air exhausted from the ventilation target area to the outside;
A plurality of the sanitary spaces are provided, and among these sanitary spaces, some sanitary spaces are provided with a sanitary air conditioner that air-conditions the sanitary spaces,
The sanitary air conditioner is configured to include a communication chamber that communicates with the plurality of sanitary spaces as an intake air of the area,
An intake duct that connects the intake port opened to the shield and the heat exchanger for introducing outside air, an exhaust port for exhausting the inside air that opens to the shield and the heat exchanger in the region where heat exchange has been performed An exhaust duct connected to exhaust air, an air supply duct connecting the heat exchanger and the residential space to supply heat exchanged outside air, and the communication chamber and the heat exchanger A duct for collecting air is connected,
The area inside the living space is configured to flow into the sanitary section,
A ventilator configured to ventilate the ventilation target area while exchanging heat between the internal air taken from the plurality of sanitary spaces and the external air introduced from the intake port. A bypass path is provided for allowing the internal air supplied to the heat exchanger through the air collecting duct to flow to the exhaust duct by bypassing the heat exchanger;
There is provided a flow path switching means capable of switching the flow state of the internal air between a heat exchange state in which the internal air is supplied to the heat exchanger and a bypass state in which the internal air is supplied to the exhaust duct through the bypass passage. The ventilation apparatus according to claim 1. The heat exchanger, an intake duct connection port to which the intake duct is connected, an exhaust duct connection port to which the exhaust duct is connected, an air supply duct connection port to which the air supply duct is connected, and the air collection A heat exchanging unit provided with each of the air collecting duct connection ports to which the ducts are connected,
The ventilator according to claim 2, wherein the bypass passage and the passage switching means are provided integrally with the heat exchange unit. The ventilation apparatus according to claim 3, wherein the heat exchange unit is configured to be able to connect the air collecting duct to different positions thereof. The heat exchange unit is configured to include a bypass unit that can be replaced with an opening for a bypass unit connection port provided at a different position thereof,
The bypass unit is configured to include the bypass path and the flow path switching means,
The air collecting duct is configured to be connectable to the bypass unit ;
An opening for the bypass unit connection port includes a heat exchanger connection port for supplying the internal air from the air collection duct to the heat exchanger, and a bypass from the air collection duct that bypasses the exchanger. It is composed of a bypass passage connection port for allowing the inside air to flow into the exhaust duct,
When the flow path switching means is switched to the heat exchange state, the inside air from the air collecting duct is supplied to the heat exchanger connection port, and when the flow path switching means is switched to the bypass state, The ventilator according to claim 4, wherein the air in the area from the air collecting duct flows through the bypass passage and is supplied to the bypass passage connection port . A flow state determination means for determining the flow state based on a determination condition set in advance to determine whether the flow state of the inside air should be the heat exchange state or the bypass state;
6. A control means for controlling the flow path switching means so as to automatically switch the flow condition based on the determination result of the flow condition determination means. Ventilation device according to item.

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