JP3267910B2 - Underfloor ventilation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To bring delivering air into a laminar state due to which the air is hardly diffused and to discharge air having moisture to a remote place by a method wherein a base panel having an opening to effect intake or discharge of air is assembled to an underfloor base and a DC motor and a cross fan are arranged internally of a panel cover. SOLUTION: A base panel 10 assembled to an undefloor base has a plurality of opening parts 10b through which air is supplied from and discharged to an external part. A brushless motor 20 is fixed sideways with a drive shaft pointing to the cross fan 30 side. The cross-fan 30 is provided with a plurality of blades 30a in parallel to a rotary shaft to form an impeller 30b. A cover 40 is formed approximately in an arcuate shape in cross section and connected to a base panel 10, and a motor 20 and a fan 30 are arranged in an internal space. When the motor 20 is driven and the impeller 30b of the fan 30 is rotated, air is sucked in an internal part from a rear, a laminar air flow having directional properties is delivered to a front and air is discharged to a remote place.

Description

DETAILED DESCRIPTION OF THE INVENTION

The present invention relates to a ventilation fan unit,
The present invention relates to an underfloor ventilation device, an underfloor ventilation system, and an underfloor ventilation system control device, and in particular, a solar underfloor ventilation device having a power source generated by a solar cell as a driving source, and a plurality of ventilation fan units arranged under the floor, Related to ventilation systems and controls.

Conventionally, a solar-type underfloor ventilator for ventilating and dehumidifying an underfloor space by driving a ventilation fan unit disposed in a ventilation hole of underfloor cloth foundation concrete using power generated by a solar cell as a driving source is disclosed. is (JP 61-52539, JP flat 7-293962). As such, by the child to force a ventilation and removal of underfloor space humidity, rot fungi and termites, to prevent the occurrence of pests, with improvement in the durability of the building is achieved, a comfortable living environment is maintained Is done.

[0003]

However, in the above-mentioned conventional solar underfloor ventilator, as shown in FIG. 12, the propeller type fan a is used. In this case, the limit of the diameter of the propeller type fan is as follows.
It is mainly determined mainly by the space height c of the ventilation hole on the under-floor cloth foundation concrete b. Therefore, in order to obtain a desired capacity with one ventilation fan unit, a plurality of fans must be arranged in parallel as shown in the figure. Therefore, the underfloor ventilation device has a complicated structure including a plurality of fans and a motor.

Further, in the propeller type fan, the flow of air to be sent out usually contains a vortex component as shown in FIG. 12, so that there is a problem that the directivity is poor and the air is easily diffused. Therefore, the humid air discharged from under the floor is not discharged far away, creating a humid space around the building, and the humid air returns to the underfloor space again or enters the living room. There was a risk of rubbing.

Further, when a plurality of ventilation fan units are installed under the floor, even if only each ventilation fan unit is driven at the same time or each ventilation fan unit is driven separately, the amount of solar radiation (solar cell However, it is difficult to effectively use the power generated by the solar cell, because multi-step fine control according to the power generation amount is not performed. In addition, since it does not have a display function or the like, there is a problem that it is difficult to grasp the number of ventilation fan units being driven. In addition, a controller for controlling each ventilation fan unit is separately installed, and the configuration is complicated and composed of a plurality of constituent units.

In view of the above, the present invention has a simple structure without providing a plurality of fans by using only one fan per ventilation fan unit, and the air flow sent from the fans is directed. It is an object of the present invention to provide a technology capable of exhausting humid air exhausted from under the floor to a distant place because of high performance. Furthermore, when a plurality of ventilation fan units are installed under the floor, by performing multi-step fine control according to the amount of solar radiation (the amount of power generated by the solar cell),
Provided is an underfloor ventilation system and a control device thereof, in which power generated by a solar cell can be effectively used without waste, the number of driven ventilation fan units can be easily grasped, and the constituent units are simple. Things.

[0007]

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above problems, and, first, has a structure under the floor.
It is a ventilation system, a child machine,
As well as air intake or exhaust to the outside
And a DC power supply.
DC motor driven by
The cross-flow fan that is driven to rotate and the base panel
Connected to the DC motor and the cross flow
Air intake and exhaust below the floor.
A cover with an opening through which air is ventilated.
The slave unit composed of the unit and the slave unit
Master unit that can be mounted on the underfloor base
In addition, an opening for taking in or exhausting air to the outside
Equipped with a base panel and a direct
Motor and a motor that is rotationally driven by the DC motor.
Connect the loss flow fan and the base panel
When the DC motor and the cross flow fan are included
Both are openings through which air is sucked or exhausted under the floor
A ventilation fan unit having a cover having a
A control unit provided in the bar,
Connected to the DC motor, and
Connected to DC motors, solar powered for each DC motor
The control unit that supplies the power generated by the power generation unit
And a master unit having a control unit connected to the control unit.
A solar power generation unit, and the control unit comprises:
By supplying the power in preference to the DC motor of the master unit
The main feature is that the parent device is activated before the child device.
I do. According to underfloor ventilation system of the first arrangement, the
Since power is allocated preferentially to the parent machine,
Because the relationship is clear, the main unit needs the most ventilation.
As a main unit and sub units as sub units in other parts
It is possible to use them properly. In addition, underfloor ventilation system
The master unit and the slave unit are installed in the
Control each ventilation fan unit because the control unit was provided.
There is no need to install a separate control box, etc.
It has a simple configuration and the functions are
With this, the handling and maintenance of the wiring cable are also improved.
It will be good. Furthermore, the ventilation fan unit in the master unit and the slave unit
In a knit, a cross flow fan is used as a fan for generating an air flow for taking in or exhausting air under the floor, so that one ventilating fan unit can be used.
With a configuration with only one fan and sufficient ventilation capacity,
It has a simple structure without multiple fans, and the air flow sent from the fans is not a spiral but a layered structure. Hateful. Therefore, it is possible to discharge the humid air discharged from under the floor to a distant place, so that no humid space is formed around the building, and the humid air returns to the underfloor space again. It can be prevented from getting in or entering the room. In addition, the above-mentioned underfloor ventilation system is
Since it has a knit, it can be driven using solar energy.
It is possible to move.

[0008] In the second, the first configuration odor
The plurality of slave units are provided, and the control unit
In accordance with the priority order of the slave units stored in the
Starting the machine. Therefore, depending on the amount of solar radiation,
Multi-step fine control is possible,
Power can be used effectively without waste.

Third, the first or second configuration
, The control unit includes the solar power generation unit.
A dummy resistor circuit connected to the
Switching the connection between the resistor and the solar power generation unit on and off
A dummy resistor circuit having a switching element
The control unit comprises a ventilation fan unit to be activated.
Before supplying power to the knit, the dummy resistor circuit
The switching element is turned on, and the resistance is
After connecting to the solar power generation unit,
Unit voltage is detected, and the detected voltage is a predetermined voltage value.
In the above case, the ventilation fan unit to be started
Is supplied with power.

[0010] Fourthly, the first to third aspects described above.
In any one of the above configurations, the master unit includes the master unit and
Displays the power supply status to the ventilation fan unit in the slave unit
And a display means for displaying. Yo
The above-mentioned display means allows the ventilation fan unit base to be driven.
It becomes possible to grasp the number.

Fifth, in the fourth configuration,
And the power to each of the ventilation fan units by the display means
The display of the supply status of the
And features. Therefore, it is possible to specifically grasp the number of ventilating fan units being driven by a simple configuration based on display by lighting of the lamp.

[0012]

[0013]

[0014]

DETAILED DESCRIPTION OF THE INVENTION describing real施例as an embodiment of the present invention by using the drawings. In the description of the actual施例showed unit as simple substance having a ventilating fan functions incorporated into a single housing if say ventilation fan unit,
When referring to an underfloor ventilation system, it refers to an entire device including a ventilation fan unit, a solar power generation unit, and auxiliary devices such as cables, and when referring to an underfloor ventilation system, an underfloor ventilation device having a plurality of ventilation fan units. It is shown. Unless indicated otherwise, the ventilation fan unit is of an exhaust type that discharges air from the underfloor space.

A ventilation unit and an underfloor ventilation device used in the underfloor ventilation system of the present invention will be described. Conversion Kiogi unit A, as shown in FIG. 1, base panel 10
, A brushless motor (DC motor) 20, a cross flow fan 30, and a cover 40. As shown in FIG. 2, a solar power generation unit B as a DC power supply is connected to the ventilation fan unit A.

The base panel 10 is formed in a substantially rectangular shape with a waterproof stainless steel or the like, and has a plurality of holes 10a into which screws and the like are fitted when assembling to the underfloor base, and a plurality of holes for taking in or exhausting air to the outside. Opening 10b. The brushless motor 20 is fixed laterally with a drive shaft (not shown) facing the cross flow fan 30. As shown in FIG. 3, the cross flow fan 30 has a plurality of blades 30a provided substantially parallel to the rotation axis to form an impeller 30b. The rotating shaft (not shown) is rotatably supported by a bearing (not shown). A drive shaft (not shown) of the brushless motor 20 is connected to the rotation shaft of the cross flow fan 30, and the rotation output of the brushless motor 20 is transmitted to the cross flow fan 30. As shown in FIG. 1, the cover 40 has a substantially arc-shaped cross section and is connected to the base panel 10. The cover 40 includes the brushless motor 20 and the cross flow fan 30 in an internal space. Opening 40 through which air is taken in from the underfloor space
a is provided.

In the ventilation fan unit A configured as described above,
As shown in FIG. 2, a solar power generation unit B attached to a roof or the like is connected. As the solar power generation unit B, a general-purpose solar power generation unit can be used as long as it has a sufficient output to drive the ventilation fan unit A and can be easily mounted on a roof or the like. it can. Then, as shown in FIG. 4, the ventilation fan unit A is fixed to the underfloor base C. In this case, as described above, the screw D is fixed to the hole 10a provided in the base panel 10 by screwing.

Next, the ventilation fan unit having the above configuration and the underfloor
The operation and effect of the ventilation device will be described. The output of the solar power generation unit B drives the brushless motor 20 to rotate, and the impeller 30b of the cross flow fan 30 rotates. At that time, as shown in FIG. 3, the impeller 30b sucks air into the impeller 30b from behind, and
It exits from 0b and is sent forward (through). The air flow 30c at this time has the same directionality and becomes a laminar flow 30c. Therefore, the directivity of the air flow to be sent out is good, the reach is long, and the air is hardly diffused as compared with a propeller fan or the like. Therefore, the moist air discharged from under the floor can be discharged far away. Furthermore,
Since the ventilation fan unit A and the solar power generation unit B are connected, the cross flow fan 30 can be driven by effectively using solar energy. When increasing the output of the cross flow fan 30, the blade 30
This is possible if a is lengthened in the lateral direction. Therefore, although there is a limit, one crossflow fan 30 may be normally arranged for one ventilation fan unit A. Therefore, a simple configuration can be achieved. Further, since the output per unit area is higher than that of a propeller fan or the like, a compact shape can be obtained.

Ventilation fan unit and underfloor ventilation device described above
According to location, as a fan for generating a flow of air to perform an intake or exhaust of air to the underfloor, by using a cross-flow fan 30, the configuration of only one fan to one ventilation fan unit A sufficient It has a simple ventilation structure without multiple fans, and the air flow sent from the fans is not a vortex but a layered structure. Long reach and difficult to spread. Therefore, it is possible to discharge the humid air discharged from under the floor to a distant place, so that no humid space is formed around the building, and the humid air returns to the underfloor space again. It can be prevented from getting in or entering the room. Furthermore, since the ventilation fan unit A and the solar power generation unit B are connected, it becomes possible to drive the ventilation fan unit A using solar energy effectively .

Next, the underfloor ventilation system of the present invention and the same
The control device will be described. The underfloor ventilation system of the present embodiment
The system is composed of three ventilation fan units A and a solar power generation unit B as shown in FIG. Here, each ventilation fan unit A includes the brushless motor 20 described in the description of the ventilation fan unit and the cross flow fan 3.
0. As shown in the figure, a master unit A1, a slave unit A2, and a slave unit A3 are set in the three ventilation fan units A, respectively. Then, the solar power generation unit B is connected only to the master unit A1, and DC power of about 12V is supplied. Further, a slave A2 and a slave A3 are connected in parallel to the master A1, respectively. Further, a ventilation fan unit A is provided in the housing of the master unit A1 (inside the cover 40).
In addition to the components (brushless motor 20, cross flow fan 30) as shown in FIG. 6, a control unit (control means) 100 and display lamps (display means) G1 to G3 using LEDs are provided as shown in FIG.

As shown in FIG. 6, the control unit 100 comprises a voltage detecting section (detecting means) D, a priority adding section (priority adding function) E, and a power supply distribution section F.
The display lamps G1 to G3 are arranged on the base panel 10 as shown in FIG. 2 so that the display lamps G1 to G3 can be confirmed at the time of assembling. The relationship between G and the driven ventilation fan unit A should be understood. Control unit 1
Reference numeral 00 denotes an electronic circuit as shown in FIG. Specifically, the three-terminal regulator 110, the microcomputer 120, the oscillation circuit 130, the resistors R1 to R8
, Switching elements T1 to T4 by FETs, terminals P1 to P14, and other capacitors for noise removal.

As shown in FIG. 8, the terminal P1 and the terminal P2 are connected to the solar power generation unit B and the terminal P3
The terminal P6 is connected to the brushless motor 20 in the master unit A1, the terminals P4 and P5 are connected to the display lamp G1, the terminals P7 and P10 are connected to the brushless motor 20 not shown in the slave unit A2, Terminal P8 and terminal P
9 is connected to the display lamp G2, and the terminals P11 and P
Reference numeral 14 is connected to a brushless motor 20 (not shown) in the slave unit A3, and terminals P12 and P13 are connected to the display lamp G3. Therefore, the switching element T2 shown in FIG. 7 is connected in series to the indicator lamp G1 and the brushless motor 20 in the master unit A1, and the switching element T3
Is connected in series to the display lamp G2 and the brushless motor 20 in the slave unit A2, and the switching element T4 is
Indicator lamp G3 and brushless motor 20 in slave unit A3
Will be connected in series.

Next, the operation of each part of the control unit 100 will be described. First, the DC power generated by the solar power generation unit B is sent to the control unit 100 via the terminals P1 and P2. Then, the DC power is made to have a constant voltage by the three-terminal regulator 110. Further, a current having a frequency required for processing is applied to the microcomputer 120 by the oscillation circuit 130 in advance. And, by the resistance R1 and the resistance R2,
The voltage output from the three-terminal regulator 110 is divided, and a reference voltage of about 2.5 V is supplied to the microcomputer 120.

The resistors R3, R4 and R5
Constitutes a voltage detecting unit D in cooperation with the microcomputer 120, and divides the DC power generated by the solar power generation unit B and applies the divided voltage to the microcomputer 120. The microcomputer 120 also functions as a priority adding unit E, and applies the trigger voltage to the switching element T2 with the first priority. Then, a trigger voltage is sequentially applied to the switching element T3 as the second priority and to the switching element T4 as the third priority in accordance with the detection voltage.

The resistor R6 is set so as to have a load equivalent to that of each ventilation fan unit A, and is connected by the switching element T1 when the power generation amount of the solar power generation unit B reaches a predetermined value. The start or stop of each ventilation fan unit A is determined by detecting the voltage of. Therefore, a voltage is applied instead of each ventilation fan unit A, and the ventilation fan unit A is used as a dummy resistor. Therefore, it is possible to prevent the cross flow fan 30 from being repeatedly switched and started and stopped repeatedly. The resistors R7 and R8 are current limiting resistors.

Next, the operation of the underfloor ventilation system of this embodiment will be described with reference to the flowchart of FIG. Initialization and initialization of each port are performed in step 200, and subsequently, in step 210, the voltage of the solar power generation unit B is detected. Then, the generated voltage is compared in step 240, and if it is 11 V or more, the dummy resistor R6 is connected by applying a trigger voltage to the switching element T1 in step 250, and the voltage in the connected state is reduced in step 260. Is detected. Here, the detection voltage is 11 V
If so, in step 270, the switching element T1
Is released, the dummy resistor R6 is opened,
In step 280, a trigger voltage is applied to the switching element T2, the master unit A1 is activated, and the display lamp G1 is turned on.

In step 260, the detected voltage is 11 V
If it is less than the switching element T1 at step 290.
Is released, the dummy resistor R6 is opened,
Return to step 230. If the power generation voltage of the solar power generation unit B is 10 V or more and less than 11 V in step 240, the operation state is maintained in step 300. In step 240, the solar power generation unit B
If the power generation voltage is less than 10 V, step 31
At 0, the voltage applied to the switching element T2 is released, the master unit A1 is stopped, and the display lamp G1 is turned off.

Further, while the master unit A1 is in operation, the generated voltage of the solar power generation unit B is compared in step 240. If the generated voltage is 11 V or more, the trigger voltage is applied to the switching element T1 in step 250, so that the dummy resistor R6 Are connected, and the voltage in the connected state is detected in step 260. Here, if the detection voltage is 11 V or more, the voltage applied to the switching element T1 is released in step 270, and the dummy resistor R6 is opened. In step 280, a trigger voltage is applied to the switching element T3, and the slave unit A2 is activated. When activated, the display lamp G2 is turned on.

In step 260, the detected voltage is 11V
If it is less than the switching element T1 at step 290.
Is released, the dummy resistor R6 is opened,
Return to step 230. If the power generation voltage of the solar power generation unit B is 10 V or more and less than 11 V in step 240, the operation state is maintained in step 300. In step 240, the solar power generation unit B
If the power generation voltage is less than 10 V, step 31
At 0, the voltage applied to the switching element T3 is released, the slave A2 is stopped, and the display lamp G2 is turned off.

Hereinafter, in the case of the slave unit A3 and the display lamp G3, starting and stopping are performed by the same operation. That is,
At the time of starting, it is started from a higher priority, and when it is stopped, it is stopped from a lower priority. In other words, if the power generation voltage of the solar power generation unit B is equal to or higher than the first predetermined value, and the voltage after the connection of the dummy resistor R6 is equal to or higher than the second predetermined value, the ventilation fan units A are sequentially activated from the highest priority. . If the power generation voltage of the solar power generation unit B is less than the first predetermined value and equal to or more than the third predetermined value, the operating state is maintained, and furthermore, the solar power generation unit B
Is lower than the third predetermined value, the ventilation fan units A with lower priority are sequentially stopped.

Therefore, as shown in FIG. 10, according to the amount of insolation, stage 1 in which none of them operates, stage 2 in which only master unit A1 operates, stage 3 in which master unit A1 and slave unit A2 operate, and Up to stage 4 in which all the ventilation fan units operate, four-stage control can be performed. for that reason,
The drive of the ventilation fan unit A can be finely controlled according to the amount of solar radiation, and the ventilation fan unit A
Can be finely increased or decreased. Therefore, problems such as a small number of operating ventilation fan units A when the amount of solar radiation is sufficient and a large number of operating number of ventilation fan units A when the amount of solar radiation is insufficient are not caused.

According to the present embodiment described above, power is distributed to each ventilation fan unit in accordance with the priority order of the ventilation fan unit A added by the priority order addition section E, and therefore, the power is distributed according to the amount of solar radiation. Fine control of four stages of stages 1 to 4 is possible, and the power generated by the solar power generation unit B can be effectively used without waste. Also,
By providing the display lamp G, it is possible to easily grasp the number of the driven ventilation fan units A.

Further, since the master unit A1, the slave unit A2, and the slave unit A3 are provided in the ventilation fan unit, and the control unit 100 is disposed in the cover 40 of the master unit A1, there is no need to separately install a control box or the like. It has a simple configuration. In addition, since the functions are centralized in the master unit A1, routing and maintenance of the distribution cable are improved. Further, since the base unit A1 is the first in the priority order and the power is distributed to the base unit A1 preferentially, the base unit A1 is provided as a main in a portion requiring the most ventilation and as a sub in other portions. It is possible to selectively use the child device A2 and the child device A3, for example. In this embodiment , the display lamp G is turned on by a lighting type L.
Although the ED lamp is used, as shown in FIG.
As an 8-segment LED numeric display H, it is also possible to display numerically.

Further, in this embodiment, the display lamp G is provided on the master unit A1, but the present invention is not limited to this, and depending on the arrangement at the time of attachment to the underfloor base, the slave unit may be provided. May be provided with a display lamp G.
Furthermore, it is also possible to provide only the display means as a display panel as an independent unit and to install it at the entrance, living room, kitchen or the like. By doing so, the operating state of the ventilation fan unit A can be easily grasped from inside the building, and it can be grasped at an early stage in the event of a failure or the like.
In addition, since it is easy to monitor the operating state for a long time by installing in a building, it is possible to grasp changes in the sunny state by monitoring the length of operating time per day, the number of operating units, and the like. . Therefore, it is possible to take measures such as changing the direction of the solar power generation unit B according to the direction of the sun that changes depending on the season.

In this embodiment , the display means is used. However, the present invention is not limited to this. Naturally, there is no space in a densely populated house or the like, so that the user can use the display lamp G. If it is not possible to confirm the status, or if it is desired to make the configuration inexpensive, a configuration without display means is also possible.

Further, as described in this embodiment , the configuration is not limited to the configuration including one solar power generation unit B and three ventilation fan units A, but the size of the underfloor space, the solar power generation unit B or the ventilation fan The number of solar power generation units B and the number of ventilation fan units A can be appropriately increased or decreased according to the capacity of the unit A.

Further, in the present embodiment , the exhaust type ventilation fan unit is used. However, the present invention is not limited to this. It is also possible to use an intake type ventilation fan unit. It is also possible to use. As described above, in the underfloor ventilation device, underfloor ventilation system, and underfloor ventilation system control device according to the present embodiment , solar energy is used as a power source, and the operation of the crossflow fan 30 is automatically controlled by the amount of solar radiation. . Therefore, ON, O of the device
Since the FF operation and the timer operation are not required at all, and the solar energy is used as the power supply of the control unit 100, the control unit 100 is driven by 100% solar energy.

[0038]

According to the underfloor ventilation system according to the present invention,
If power is allocated to the parent device preferentially,
The main unit needs the most ventilation because the relationship between
The main unit is provided in the main part, and the sub unit is
It is possible to use them properly, such as installing Also underfloor ventilation
The system has a master unit and a slave unit, and covers the master unit.
A control unit is provided inside, so each ventilation fan unit is controlled.
There is no need to install a separate control box, etc.
And a simple configuration, with functions integrated in the master unit
Routing and maintenance of wiring cables
Satisfactorily. Furthermore, the exchange between the master unit and the slave unit
In the air fan unit, a cross flow fan is used as a fan for generating air flow for taking in or exhausting air under the floor, so that only one fan is used for one ventilation fan unit, thereby providing sufficient ventilation. It has a simple structure without multiple fans because of its ability, and the air flow sent from the fans is not a spiral but a layered structure, so the directivity of the air flow sent out is good and the reach Is long and difficult to spread. Therefore, it is possible to discharge the humid air discharged from under the floor to a distant place, so that no humid space is formed around the building, and the humid air returns to the underfloor space again. It can be prevented from getting in or entering the room. The underfloor ventilation system is solar
Uses solar energy because it has a power generation unit
And can be driven.

[0039]

[0040]

[0041]

[0042]

[0043]

[Brief description of the drawings]

FIG. 1 is a perspective view showing a ventilating fan unit according to an embodiment of the present invention in a partially cutaway manner.

FIG. 2 is a perspective view showing a main part in a state where the ventilation fan unit and the solar power generation unit in the embodiment of the present invention are connected.

FIG. 3 is an explanatory diagram showing a main part of a cross flow fan in the ventilation fan unit according to the embodiment of the present invention.

FIG. 4 is an explanatory view showing a main part of a state where the ventilation fan unit according to the embodiment of the present invention is installed on a base under the floor.

5 is an explanatory diagram of a floor ventilation system of the real施例of the present invention.

6 is an explanatory view of a floor ventilation system controller real施例of the present invention.

FIG. 7 is a circuit diagram showing a configuration of a control unit according to the embodiment of the present invention.

FIG. 8 is a wiring diagram illustrating an electrical connection of a control unit according to the embodiment of the present invention.

FIG. 9 is a flowchart showing the operation of the control unit in the embodiment of the present invention.

FIG. 10 is an explanatory diagram showing the contents of the control stage of the control unit in the embodiment of the present invention.

FIG. 11 is a perspective view showing a main part in a state where another display means is implemented in the present invention.

FIG. 12 is an explanatory view showing a main part of a conventional underfloor ventilation device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Base panel 10b, 40a Opening 20 DC motor 30 Cross flow fan 40 Cover 100 Control means A Ventilation fan unit A1 Master unit A2, A3 Slave unit B Solar power generation unit C Underfloor base D Detection means E Priority addition function F Power supply distribution Part G1 to G3 Display means P1 to P14 Terminal R1 to R8 Resistance T1 to T4 Switching element

Continuation of front page (56) References JP-A-7-293962 (JP, A) JP-A-8-5124 (JP, A) JP-A-5-5545 (JP, A) JP-A-9-126524 (JP) , A) Japanese Utility Model Hei 3-67834 (JP, U) Japanese Utility Model Showa 58-6129 (JP, U) Japanese Utility Model Showa 63-26042 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB Name) F24F 7/10 F24F 7/007 F24F 11/02

Claims (5)

(57) [Claims] An underfloor ventilation system, which is a slave unit, is mounted on a underfloor base and sucks air to the outside.
Base panel with opening for air or exhaust
And a DC motor driven by a DC power supply.
Cross flow fan driven by a rotating motor
Connected to the base panel, and connected to the DC motor
With a cross-flow fan
Cover with opening for air intake or exhaust
And a master unit connected to the slave unit, the master unit being attached to the underfloor base and absorbing air to the outside.
Base panel with opening for air or exhaust
And a DC motor driven by a DC power supply.
Cross flow fan driven by a rotating motor
Connected to the base panel, and connected to the DC motor
With a cross-flow fan
Cover with opening for air intake or exhaust
And a control unit provided in the cover, comprising:
Connected to the DC motor at
Connected to the DC motors
To supply the power generated by the power generation unit
Has a base unit having a unit, and a solar power unit connected to the control unit, a control unit, said power in preference to the DC motor of the base unit
To start up by giving priority to the master unit over the slave unit.
An underfloor ventilation system, characterized by 2. The control unit according to claim 1, wherein a plurality of the slave units are provided.
Units according to the priority order of the slave units stored in the control unit.
2. The method according to claim 1, wherein the slave units are sequentially activated.
The underfloor ventilation system as described. 3. The solar power generation system according to claim 2, wherein
A dummy resistor circuit connected to the unit,
And turn on and off the connection between the resistor and the solar power generation unit.
Dummy resistor with switchable switching element
The control unit has a circuit,
Before supplying power to the air fan unit, the dummy resistor
The switching element in the resistance circuit is turned on,
After connecting the resistor to the solar power generation unit,
The voltage of the power generation unit is detected, and the detected voltage is a predetermined voltage.
If the voltage is equal to or higher than the voltage value, the ventilation fan
The electric power is supplied to a knit, The Claim 1 or Claim characterized by the above-mentioned.
3. The underfloor ventilation system according to 2. 4. The base unit and the base unit and the child unit
Display to indicate the power supply status to the ventilation fan unit
A step is provided, wherein a step is provided.
Is the underfloor ventilation system according to 3 . 5. The ventilation fan unit according to claim 5, wherein:
The display of the power supply status to the
The underfloor ventilation system according to claim 4 , wherein