JP5045169B2 - Ventilation equipment - Google Patents

Description

  The present invention relates to a ventilator provided with a power supply connection terminal electrically connected to a motor.

  In a ventilator provided with a power supply connection terminal electrically connected to a motor, the power supply line can be connected by simply inserting the power supply connection terminal with the covering removed. Conventionally, an example of this type of ventilator is known in which a power connector is installed in a main body frame (see, for example, Patent Document 1).

  The ventilation device will be described below with reference to FIG.

  As shown in the figure, a flange portion 104 having a recess 103 formed on the back side is provided on the indoor side of the ventilation fan main body 102 provided with the fan motor 101, and the fan motor 101 has a shape accommodated in the recess 103 in the flange portion 104. A pair of support bases 107 having support pins 106 are provided on the flange portion 104 so as to rotatably support one end of the power connection terminal 105 electrically connected to the power connection terminal 105. An engaging portion of the pin 106 is provided and configured.

  Further, as another example of a conventional ventilation device, one in which an electrical case having a power connection terminal is provided in a main body frame is known (see, for example, Patent Document 2).

  The ventilation device will be described below with reference to FIG.

As shown in the figure, a flange portion 114 having a recess 113 formed on the back side is provided on the indoor side of the ventilation fan body 112 provided with the fan motor 111, and is electrically connected to the fan motor 111 in a shape accommodated in the recess 113. Two power connection terminals 115 to be connected are accommodated in close proximity to the electrical case 116 in parallel.
Japanese Patent No. 3430032 (FIG. 1) Japanese Patent Laying-Open No. 2006-250434 (FIG. 1)

  In such a conventional ventilator, the power connection part is generally housed in a case of a power connection terminal in which two different-polarity charging parts are integrally formed, and is made small in order to secure an insulation distance. There was a problem that it was difficult.

  Further, even when the power connector is divided into two power connectors, the two power connectors are housed in close proximity to the protective case, so that the power connector There has been a problem that it is difficult to reduce the distance between them to reduce the size.

  In addition, when used in a humid place, there has been a problem that it has been devised to make it difficult for intrusion of condensed water into the power connection terminal to increase reliability.

  Further, when used in a place where much dust is generated, there has been a problem that the dust protection function of the protective case has been enhanced in order to further improve the reliability.

  The present invention solves such a conventional problem, and provides a ventilator capable of ensuring a sufficient insulation distance regardless of the place of use and ensuring reliability by preventing ingress of water droplets and dust. With the goal.

  In order to achieve the above object, the ventilator of the present invention has a cylindrical part in which a fan and a motor are provided in a shape that is attached to a wind tunnel pipe provided in a wall or a ceiling so as to communicate between the room and the outdoors. A flange portion formed in a substantially square shape projecting radially in the outer periphery of the indoor side opening of the cylindrical portion, and a main body frame provided with an electrical component portion on the back side of the periphery of the flange portion. In the ventilator configured as described above, the electrical component is composed of at least two power connection terminals having different polarities, each formed as a separate part, and the power connection terminals are shifted from each other with respect to the insertion direction of the power supply wires. It is characterized by.

  Further, the other means is characterized in that the power supply unit is configured by covering the electrical component part with an electrical component case and an electrical component cover and accommodated on the back side of the main body frame.

  As another means, the electrical unit is configured such that the electrical case is attached to the back side of the main body frame, the power connection terminal is fixed to the electrical cover, and the electrical cover covers the electrical case.

  The other means is characterized in that a space is provided between the power connection terminal fixed to the electrical cover and the electrical case surface.

  Further, the other means is characterized in that the position of the wire insertion port of the power connection terminal is arranged at a position higher than the power wire insertion portion provided in the electrical unit.

  Another means is that the electrical case is provided with a downward inclined surface on the inner surface side toward the power supply wire insertion portion.

  In addition, the other means is characterized in that the electrical unit is detachable from the main body frame.

  Another means is characterized in that the electrical cover is detachable from the electrical case while the electrical case is fixed to the body frame.

  Another means is that the electrical case is configured to be fixed by fitting an edge portion with a claw provided on the body frame.

  Further, the other means is characterized in that the power connection terminal fixed to the electrical cover is configured to be rotatable about the end opposite to the wire insertion port.

  Another means is that the electrical case is provided with a rib at a portion facing the power supply connection terminal on the inner surface side.

  Another means is that the electrical case and the electrical cover are made of a flame-retardant resin.

  According to the present invention, a cylindrical portion in which a fan and a motor are provided in a shape to be attached to a wind tunnel pipe provided in a wall portion or a ceiling so as to communicate between the room and the outdoors, and an indoor side opening of the cylindrical portion. A ventilating device comprising a flange portion formed in a substantially square shape projecting radially on the outer periphery of the main body and a main body frame having a rising portion formed on the back side of the periphery of the flange portion and provided with an electrical component portion. The portion is composed of at least two power connection terminals with different polarities, each formed as a separate part, and the power connection terminals are arranged so as to be shifted from each other with respect to the insertion direction of the power supply wires, so that the width direction of the power connection terminals is changed. It is possible to provide a ventilating device that is effective in reducing the size and ensuring the insulation performance.

  In addition, the electrical component is covered with an electrical case and electrical cover to form an electrical unit and housed on the back side of the main body frame, so that it is highly reliable and protects against dust adhesion and impact. Can be provided.

  In addition, the electrical unit has an electrical case attached to the inner surface of the main body frame, the power connection terminal is fixed to the electrical cover, and the electrical cover covers the electrical case, thereby preventing water droplets from entering. It is possible to provide a ventilator that is highly reliable.

  Further, by providing a space between the power connection terminal fixed to the electrical cover and the electrical case surface, it is possible to provide a ventilator that has an effect of being highly reliable with respect to the ingress of water droplets.

  Moreover, the position of the wire insertion port of the power connection terminal is higher than the power wire insertion part provided in the electrical unit, providing a ventilator that is highly reliable against the ingress of water droplets. can do.

  In addition, the electrical case can be provided with a ventilator having an effect of being highly reliable with respect to the ingress of water droplets by providing a downwardly inclined surface on the inner surface side toward the power supply wire insertion portion.

  In addition, since the electrical unit is configured to be detachable from the main body frame, it is possible to provide a ventilator having an effect of facilitating the construction.

  In addition, it is possible to provide a ventilator having an effect of facilitating the construction by configuring the electrical cover to be detachable from the electrical case while the electrical case is fixed to the main body frame.

  In addition, the electrical case can be provided with a ventilator having an effect that the construction is easier because the edge portion is configured to be fitted and fixed to the claws provided on the main body frame.

  Moreover, providing the ventilator with the effect that construction becomes easier because the power connection terminal fixed to the electrical cover is configured to be rotatable about the end opposite to the wire insertion port as an axis. Can do.

  In addition, the electrical case is provided with a rib in the part facing the power connection terminal on the inner surface side, so that the power connector can be securely fixed to the electrical cover side regardless of the state of construction work. It is possible to provide a ventilator that has an effect of being able to be constructed.

  In addition, since the electrical case and the electrical cover are formed of a flame-retardant resin, it is possible to provide a ventilator having an effect that the combustion resistance of the electrical unit is high.

  Further, the other means is characterized in that the power supply unit is configured by covering the electrical component part with an electrical component case and an electrical component cover and accommodated on the back side of the main body frame.

Ventilation apparatus of the present invention, so as to communicate the inside and outside, the wall portion or a cylindrical portion in which the fan and the motor are provided inside the shape to be mounted on the wind tunnel pipe provided in the ceiling, the chamber of the tubular portion In a ventilator configured with a flange portion formed in a substantially square shape projecting radially in the outer periphery of the inner opening, and a main body frame provided with a rising portion on the back surface side around the flange portion and provided with an electrical component, The electrical component is composed of at least two power connection terminals having different polarities, each formed as a separate part, and the power connection terminals are arranged so as to be shifted from each other with respect to the insertion direction of the power supply wires and have different polarities. Two power connection terminals are used as separate parts, and their positions are shifted from each other in the direction in which the power supply wires are inserted, so that the space between the power connection terminals is secured and the power wires are connected. .

  The electrical component is covered with an electrical component case and an electrical component cover to form an electrical component unit and housed on the back side of the main body frame. The electrical component connected to the power supply cable is covered with the electrical component case and the electrical component cover, It has the effect of protecting against dust intrusion and impact.

  The electrical unit is attached to the back side of the main body frame, the power connection terminal is fixed to the electrical cover, and the electrical cover is configured to cover the electrical case. Even if it enters the electrical unit, it has the effect that water droplets accumulate on the electrical case side.

  Also, a space is provided between the power connection terminal fixed to the electrical cover and the electrical case surface, and in the ceiling mounted state, even if it enters the electrical unit, the distance between the water droplet and the power connection terminal is ensured. Has an effect.

  In addition, the position of the wire insertion port of the power connection terminal is located higher than the power wire insertion part provided in the electrical unit, and even if water drops enter the electrical case through the power line, The wire is inclined upward toward the electric wire insertion port of the power connection terminal, and has an effect of preventing water droplets from entering the charging portion.

  In addition, the electrical case is provided with a downwardly inclined surface on the inner surface side toward the power supply wire insertion portion, and water drops that have entered the electrical unit in the ceiling mounted state are directed toward the power supply wire insertion portion along the downward inclined surface. It has the effect of flowing out.

  In addition, the electrical unit is configured to be detachable from the main body frame, and the connection of the power supply wire has an effect of pulling the power supply unit closer.

  In addition, the electrical case is configured to be detachable from the electrical case while the electrical case is fixed to the main body frame, and the power connection terminal fixed to the electrical cover can be pulled close to be connected to the power source. Has an effect.

  Further, the electrical case has a structure in which the edge is fitted and fixed to a claw provided on the main body frame, and the electric cover has an action of being fitted and fixed to the claw of the main body frame.

  In addition, the power connection terminal fixed to the electrical cover is configured to be rotatable about the end opposite to the wire insertion port, and the power connection terminal can be turned upright to connect the power supply. Has the effect of being able to.

  In addition, the electrical case is provided with ribs on the part facing the power connection terminal on the inner surface side. When the electrical cover is housed in the electrical case without turning the power connection terminal upright, the electrical case inner surface side The ribs press the power connection terminal, and the power connection terminal is uniquely installed at the proper position.

  Further, the electrical case and the electrical cover are formed of a flame retardant resin, and have an effect of ensuring the combustion resistance performance of the electrical case and the electrical cover.

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

(Embodiment 1)
FIG. 1 shows an attached state (cross-sectional view) of a ventilation device to a ceiling 1 according to Embodiment 1 of the present invention. As shown in FIG. 1, the ventilation device has a cylindrical portion 6 having a fan 4 and a motor 5 inside, and a tubular portion 6 having a fan 4 and a motor 5 inside, which is attached to a room 2 embedded in a ceiling 1 and a wind tunnel pipe 3 communicating with the outside. A flange portion 8 formed in a substantially square shape projecting radially in the outer periphery of the indoor side opening 7 of the tubular portion 6, a rising portion 9 formed on the back side around the flange portion 8, an electrical component portion 10, A main body frame 14 in which an electric unit 13 composed of an electric case 11 and an electric cover 12 is housed on the back surface side, and a front panel 15 that forms an air passage detachably provided on the main body frame 14 are provided. .

  2 is a rear side projection view of the ventilator according to the first embodiment of the present invention, and FIG. 3 is a cross-sectional view of the electrical unit 13 of the ventilator according to the first embodiment of the present invention. As shown in FIGS. 2 and 3, the electrical unit 13 of the ventilation device includes an electrical case 11 attached to the back side of the main body frame 14 and two power connection terminals 16 having different polarities, each formed as a separate part. The electrical cover 12 is formed so as to be shifted from each other with respect to the insertion direction of the power supply wire 17, and the electrical cover 12 is disposed so as to cover the electrical case 11. In addition, a space 18 is provided between the power connection terminal 16 attached to the electrical component cover 12 and the inner surface side of the electrical component case 11. Furthermore, the positions of the wire insertion openings 19 provided in the two power connection terminals 16 are higher than the power supply wire insertion portion 20 provided in the electrical unit 13 both in the ceiling mounted state and in the wall mounted state. To place. As shown in FIG. 3, a downwardly inclined surface is provided on the inner surface side of the electrical case 11 toward the power supply wire insertion portion 20 that communicates the inside and outside of the electrical case 11.

  FIG. 4 is a rear perspective view of the ventilation device according to Embodiment 1 of the present invention. As shown in FIG. 4, the electrical case 11 is configured such that the electrical cover 12 to which the electrical component 10 is attached can be detached from the electrical case 11 while the edge 22 is fixed to the claw 21 provided on the main body frame 14. And Further, the electrical cover 12 has a structure in which the end 23 is fitted into the hole 24 of the main body frame 14 and fixed to the back side of the main body frame 14. In addition, the two power connection terminals 16 attached to the electrical cover 12 are provided so as to be rotatable around the end 25 on the side opposite to the wire insertion port 19. Moreover, the electrical equipment case 11 and the electrical equipment cover 12 are formed of a flame-retardant resin.

  And as shown in FIG. 3, the rib 26 is provided in the inner surface side of the electrical equipment case 11 in the part facing the power supply connection terminal 16. As shown in FIG.

  In the above configuration, the two power connection terminals 16 having different polarities are used as separate parts, and their positions are shifted from each other in the insertion direction of the power supply wires 17 to ensure a spatial distance between the two power connection terminals 16. By connecting the power supply wires 17, the width direction of the two power supply connection terminals 16 can be reduced to ensure insulation performance.

  In particular, in a small ventilation device such as a pipe fan, it is very useful to save space while ensuring insulation performance.

  In addition, the electrical component 10 to which the power supply wire 17 is connected is covered with the electrical component case 11 and the electrical component cover 12 to protect against dust intrusion and impact from the outside, thereby obtaining a highly reliable ventilation device. it can. Furthermore, by forming the electrical case 11 and the electrical cover 12 with a flame-retardant resin, a more reliable ventilation device can be obtained.

  Further, since the electrical case 11 attached to the back side of the main body frame 14 is formed so as to cover the electrical component cover 12 to which the electrical component 10 is attached, water droplets enter the electrical unit 13 in the ceiling-mounted state. Even so, the water droplets are accumulated on the electrical equipment case 11 side, and a highly reliable ventilation device can be obtained against the ingress of water droplets.

  Further, since the power connection terminal 16 attached to the electrical cover 12 is provided with a space 18 between the inner surface side of the electrical case 11, even if water drops enter the electrical unit 13 in the ceiling mounted state, The distance between the water droplet and the power connection terminal 16 is ensured, and a highly reliable ventilator can be obtained against the ingress of the water droplet. In particular, if the space 18 is secured to 5 mm or more, even if water droplets accumulated on the inner surface side of the electrical equipment case 11 grow, the possibility of reaching the power connection terminal 16 is reduced, and further improvement in reliability can be realized.

  In addition, since the position of the electric wire insertion port 19 provided in the power connection terminal 16 is arranged so as to be higher than the power supply electric wire insertion portion 20 provided in the electrical unit 13 in both the ceiling mounting state and the wall mounting state. Even if water droplets enter the electrical unit 13 through the power supply wire 17, the power supply wire 17 is inclined upward toward the wire insertion port 19, so that the water droplets are prevented from entering the charging unit. A highly reliable ventilation device can be obtained.

  In addition, since a downwardly inclined surface is provided on the inner surface side of the electrical case 11 toward the power supply wire insertion portion 20 that communicates the inside and outside of the electrical case 11, water droplets that have entered the electrical unit 13 in the ceiling-mounted state are descended. It flows toward the power supply wire insertion portion 20 along the inclined surface and is discharged from the electrical unit 13, so that a highly reliable ventilator can be obtained against the ingress of water droplets.

  In addition, since the electrical case 11 is fixed to the main body frame 14 and the electrical cover 12 to which the electrical part 10 is attached can be detached from the electrical case 11, the connection of the power supply wire 17 is connected to the electrical cover 12. The electrical equipment part 10 fixed to the head is pulled close to the hand, and a ventilation device that is easy to construct can be obtained. In particular, it is very beneficial from the viewpoint of ease of construction, safety, and certainty that the work can be performed at hand in the installation before installing the ventilation device for lighting or lighting equipment.

  Further, the electrical case 11 and the electrical cover 12 are structured to be fixed to the back side of the main body frame 14 by fitting the edge portion 22 and the end portion 23 to the claws 21 or the holes 24 of the main body frame 14, respectively. Can be fixed by being fitted into the hole 24 of the main body frame 14, and a ventilation device that is easier to construct can be obtained without the need for a tool such as a screwdriver.

  Further, the power connection terminal 16 attached to the electrical cover 12 is provided so as to be rotatable around the end 25 on the side opposite to the wire insertion port 19. The electric wire 17 can be connected, and a ventilation device that is easier to construct can be obtained. In particular, in the construction before installing a ventilation device for lighting or lighting equipment, it is very beneficial from the viewpoint of ease of construction, safety, and certainty that the work can be carried out by rotating to an arbitrary angle.

  Further, since the rib 26 is provided on the inner surface side of the electrical equipment case 11 at a portion facing the power connection terminal 16, the electrical equipment cover 12 is housed in the electrical equipment case 11 without turning the power connection terminal 16 upright. The rib 26 on the inner surface side of the electrical case 11 pushes the power connection terminal 16 so that the power connection terminal 16 is uniquely installed at a proper position, and the power connection terminal 16 is securely attached to the electrical cover regardless of the state of construction work. The ventilation apparatus which can be fixed to 12 side and can perform more reliable construction can be obtained.

  In this embodiment, the electrical case 11 and the electrical cover 12 are fixed to the back side of the main body frame 14 by fitting the edge 22 and the end 23 into the claws 21 or the holes 24 of the main body frame 14, respectively. However, it goes without saying that the same effect can be obtained even if the claws of the electrical cover 12 are fixed in other combinations such as fixing the claws of the electrical cover 12 to the holes of the electrical case 11.

(Embodiment 2)
FIG. 5 is a rear perspective view of the ventilation device according to Embodiment 2 of the present invention. In FIG. 5, since the components are the same as those of the ventilator in the first embodiment, the same reference numerals as those in FIGS. 1 to 4 are used, and the description thereof is omitted.

  As shown in FIG. 5, the electrical unit 13 </ b> A is configured to be detachable from the main body frame 14.

  In the above configuration, since the electrical unit 13A can be detached from the main body frame 14, the connection of the power supply wire 17 is performed by drawing the electrical unit 13A provided with the electrical unit 10 closer to the hand, so that the ventilation device is easy to construct. Can be obtained. In particular, it is very beneficial from the viewpoint of ease of construction, safety, and certainty that the work can be performed at hand in the installation before installing the ventilation device for lighting or lighting equipment.

  It is applied to improve reliability even when there are three or more power connection terminals in a ventilator that has a fan motor and power connection terminals and is attached to a wall or ceiling. Further, the present invention can be applied to a purpose of reducing the size of the ventilation device.

Sectional drawing which shows the attachment state to the ceiling of the ventilation apparatus in Embodiment 1 of this invention Rear view of the ventilator Sectional view of the electrical unit of the ventilation device Rear side perspective view of the ventilator The back side perspective view of the ventilation apparatus in Embodiment 2 of this invention Rear side perspective view of a conventional ventilator Rear perspective view of another conventional ventilation device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ceiling 2 Room 3 Wind tunnel pipe 4 Fan 5 Motor 6 Cylindrical part 7 Indoor side opening 8 Flange part 9 Standing part 10 Electrical part 11 Electrical case 12 Electrical cover 13 Electrical unit 13A Electrical unit 14 Main body frame 16 Power supply connection terminal 18 Space 19 Wire insertion port 20 Power supply wire insertion portion 21 Claw 22 Edge portion 25 Opposite end portion 26 Rib

Claims (9)

A cylindrical part in which a fan and a motor are provided in a shape to be attached to a wind tunnel pipe provided on the wall or ceiling so as to communicate between the room and the outdoors, and radially on the outer periphery of the indoor side opening of the cylindrical part The flange portion formed in a substantially square shape that protrudes, and a main body frame that has a rising portion formed on the back side of the periphery of the flange portion and provided with an electrical component, and the electrical component was formed as a separate part. Consists of at least two power connection terminals having different polarities, the power connection terminals are arranged so as to be shifted from each other with respect to the insertion direction of the power wires, and the electrical component is covered with an electrical case and an electrical cover to constitute an electrical unit, The electric unit is mounted on the inner surface side of the main body frame, the electric unit is attached to the inner surface side of the main body frame, the power connection terminal is fixed to the electric component cover, and the electric component cover is It is those where the structure covering the instrumentation case, and characterized in that a space for securing a length of the power supply connection terminal and water drops between the power connection terminal which is fixed to the electrical equipment cover and the electric casing surface to that ventilation system. Position of the electric wire insertion hole of the power supply connection terminal, ventilator according to claim 1, characterized in that arranged at a position higher than the power supply wire insertion portion provided in the electric unit. The ventilating apparatus according to claim 1 or 2, wherein the electrical case has an inclined surface on the inner surface side toward the power supply wire insertion portion. The ventilation device according to any one of claims 1 to 3 , wherein the electrical unit is configured to be detachable from the main body frame. The ventilator according to any one of claims 1 to 4 , wherein the electrical case is configured to be detachable from the electrical case while the electrical case is fixed to the main body frame. 6. The ventilation device according to claim 5, wherein the electrical case is configured to be fitted and fixed with a claw provided on an edge of the body frame. The ventilator according to any one of claims 1 to 6 , wherein the power connection terminal fixed to the electrical cover is configured to be rotatable about an end opposite to the wire insertion port. The ventilation apparatus according to claim 7 , wherein a rib is provided on a part of the inner surface of the electrical case opposite to the power connection terminal. The ventilator according to any one of claims 1 to 8 , wherein the electrical equipment case and the electrical equipment cover are formed of a flame retardant resin.

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