JP4432633B2 - Simultaneous supply / exhaust ventilator - Google Patents

Description

  The present invention relates to a simultaneous supply / exhaust ventilation device that takes in outdoor air through a two-layer duct that is internally divided into an exhaust air passage and an air supply air passage, and discharges the indoor air to the outside.

  Conventionally, as this type of simultaneous supply / exhaust ventilation device, a wall-mounted heat exchange type ventilation device that has a heat exchange element inside and exchanges heat between indoor air and outdoor air to reduce energy loss in the indoor environment due to ventilation. An apparatus is known (see, for example, Patent Document 1).

  This heat exchange type ventilator divides the inside of a box-shaped main body attached to the wall surface of a building into an exhaust passage and an intake passage, and the rotation axis of the inside of the exhaust passage and the intake passage is relative to the wall surface. A vertical intake / exhaust blower is provided, and the exhaust passage and the intake passage communicate with a two-layer duct that is divided into an exhaust air passage and an intake air passage and penetrates a wall of the building, etc. A heat exchange element is provided at a portion where the exhaust passage and the intake passage intersect to heat-exchange outdoor air and indoor air. The intake / exhaust blower includes an exhaust fan and an intake fan fixed to end portions of a coaxial rotating shaft projecting from one electric motor to both ends, and the exhaust fan and the intake fan are The heat exchange element is disposed near one side of the main body so as to overlap the wall, and the heat exchange element is disposed near the other side.

  In addition, as another simultaneous supply / exhaust type ventilation device, the exhaust air passage and the intake air passage are not configured in the same duct, but are used by being connected to two independent exhaust ducts and intake ducts. A type ventilation device is known (see, for example, Patent Document 2).

In this heat exchange type ventilator, an exhaust passage and an intake passage which are independent from each other are formed in the main body, and the exhaust passage and the intake passage intersect with each other so that heat can be exchanged in the heat exchanger. Thus, intake and exhaust are performed simultaneously. The exhaust blower and the intake blower are provided with a rotation axis perpendicular to the mounting wall surface of the main body and are arranged side by side in the direction along the mounting wall surface. The exhaust blower communicates with the exhaust duct via the heat exchanger, and the intake blower communicates with the intake duct via the heat exchanger.
Japanese Utility Model Publication No. 57-46732 (see FIG. 1) Japanese Utility Model Publication No. 2-536 (see FIG. 1)

  In such a conventional simultaneous supply / exhaust type ventilator, in the heat exchange type ventilator described in the former Patent Document 1, a blower for intake and exhaust is coaxially rotated so as to protrude from one electric motor to both ends. It is composed of an exhaust fan and an intake fan fixed to the end of the shaft, respectively, and the exhaust fan and the intake fan are arranged on one side of the main body so as to overlap the wall. Although the lateral length can be reduced, there is a problem that the depth of the main body protruding from the mounting wall surface is increased, and the apparatus is increased in size as a whole.

  Further, in the latter heat exchange type ventilator described in Patent Document 2, the exhaust blower and the intake blower are arranged side by side in a direction along the mounting wall surface with a rotation axis perpendicular to the mounting wall surface. Therefore, the depth and thickness of the main body protruding from the mounting wall can be reduced compared to the former heat exchange ventilator, but it has independent exhaust ducts and intake ducts. Two through holes had to be opened in the wall, etc., and there was a problem that the workability was poor and the airtightness of the building was impaired.

  Furthermore, even if the latter heat exchange type ventilator is connected to a two-layer duct, the interior of which is divided into an exhaust air passage and an air supply air passage, the problem of workability and building airtightness will be solved. By configuring the exhaust air passage and the air supply air passage of the duct to communicate with the exhaust blower and the intake blower, respectively, there is a problem that the apparatus becomes large as a whole, and the resistance of the intake passage and the exhaust passage There was a problem that the ventilation performance of simultaneous supply and discharge could not be obtained sufficiently.

  SUMMARY OF THE INVENTION The present invention solves the above-described problems, and an object of the present invention is to provide a simultaneous supply / exhaust type ventilation device that can reduce the thickness of the device body in the depth direction and reduce the overall size of the device.

  It is another object of the present invention to provide a simultaneous supply / exhaust type ventilation device that can ensure simultaneous supply / exhaust ventilation performance without increasing the size of the device.

In order to solve the above-mentioned problems, the simultaneous supply / exhaust type ventilator of the present invention provides a supply air passage and an exhaust air passage of a two-layer duct in which the inside of one duct is partitioned to form a supply air passage and an exhaust air passage. A main body disposed on the indoor side having an outdoor air supply port and an outdoor air discharge port formed adjacent to each other, and provided inside the main body to supply air toward the indoor side An air supply fan for exhausting to the outdoor side, and an indoor air supply port provided in the main body so as to communicate with the outdoor air supply port via the air supply fan A simultaneous supply / exhaust ventilation device including an indoor exhaust port provided in the main body so as to communicate with the outdoor exhaust port via the exhaust fan, wherein the rotary shaft of the supply fan and The rotational axis of the exhaust fan is perpendicular to the indoor side wall surface The air supply fan and the exhaust fan are arranged side by side in a direction along the indoor side wall surface, and when the main body is viewed from the front toward the indoor side wall surface, the center of the two-layer duct is the air supply Between the center of rotation of the exhaust fan and the center of rotation of the exhaust fan so as to be closer to the center of rotation of the air supply fan, and the main body is faced toward the indoor side wall surface When viewed, the double-layer duct is located at a position where an opening of the outdoor exhaust port communicating with the exhaust air passage of the double-layer duct is not included inside the suction port of the exhaust fan configured on the indoor side. Is provided on the main body .

The simultaneous supply / exhaust type ventilator according to the present invention is adjacent to the supply air passage and the exhaust air passage of the two-layer duct in which the inside of one duct is partitioned to form the supply air passage and the exhaust air passage. A main body provided on the indoor side having an outdoor air supply port and an outdoor air outlet formed together, and an air supply for supplying air toward the indoor side provided inside the main body A fan, an exhaust fan for exhausting to the outdoor side, an indoor air supply port provided in the main body so as to communicate with the outdoor air supply port via the air supply fan, and the exhaust fan A simultaneous supply / exhaust type ventilator provided with an indoor exhaust port provided in the main body so as to communicate with the outdoor exhaust port through the rotary shaft of the supply fan and the exhaust fan The air supply fan so that the rotation axis is perpendicular to the indoor side wall surface And the exhaust fans are arranged side by side in the direction along the indoor side wall surface, and when the main body is viewed from the front side toward the indoor side wall surface, the center of rotation of the air supply fan is the two-layer duct. When the main body is viewed from the front toward the indoor side wall surface, it communicates with the exhaust air passage of the two-layer duct. The two-layer duct is provided on the main body at a position where the opening of the outdoor exhaust port is not included inside the suction port of the exhaust fan configured on the indoor side .

  Further, the simultaneous supply / exhaust type ventilator of the present invention partitions the inside of one duct and communicates with the supply air passage and the exhaust air passage formed in the two-layer duct, respectively, and is formed adjacent to each other. A main body that is provided on the indoor side with an air supply port and an outdoor exhaust port, and is provided inside the main body and has a suction port at a position facing the outdoor air supply port. An air supply fan for exhausting air to the outside, an exhaust fan for exhausting to the outside of the room, and an indoor air supply provided in the main body so as to communicate with the outdoor air supply port via the air supply fan A simultaneous supply / exhaust type ventilator comprising a port and an indoor exhaust port provided in the main body so as to communicate with the outdoor exhaust port via the exhaust fan, the rotation of the supply fan So that the shaft and the rotation axis of the exhaust fan are perpendicular to the indoor side wall surface. The air supply fan and the exhaust fan are arranged side by side in a direction along the indoor side wall surface, and when the main body is viewed from the front side toward the indoor side wall surface, the air supply fan and the exhaust fan are provided inside the two-layer duct. A part of the partition plate is disposed so as to be included in the opening of the suction port of the air supply fan.

  Further, the simultaneous supply / exhaust type ventilator of the present invention is partitioned at the inner center of the two-layer duct to partition the supply air passage and the exhaust air passage when the main body is viewed from the front toward the indoor side wall surface. The suction of the air supply fan provided at a position perpendicular to the partition portion and the distance from the partition portion to the inner surface of the air supply passage of the two-layer duct is opposed to the outdoor air supply port The double-layer duct is provided on the main body so as to be included in the inside of the mouth.

  Further, in the simultaneous supply / exhaust ventilation device of the present invention, when the main body is viewed from the front toward the indoor side wall surface, a part of the opening of the outdoor exhaust port communicating with the exhaust air passage of the two-layer duct is formed. The two-layer duct is provided on the main body so as to be included inside a suction port of the supply fan provided at a position facing the outdoor supply port.

  The simultaneous supply / exhaust type ventilator according to the present invention further includes an exhaust fan casing having a shape covering the exhaust fan and having a suction port and a discharge port, and is located on the side of the exhaust fan. An exhaust passage from the discharge port of the exhaust fan casing to the outdoor exhaust port is provided between the fan and the indoor wall.

  The simultaneous supply / exhaust ventilation device according to the present invention further includes an exhaust fan casing having a shape covering the exhaust fan and having a suction port and a discharge port, and the discharge port of the exhaust fan casing extends to the outdoor exhaust port. And an inclined portion that is inclined with respect to the inner wall surface toward the outdoor exhaust port is formed on the side wall of the exhaust passage.

  The simultaneous supply / exhaust ventilation device according to the present invention further includes an exhaust fan casing having a shape covering the exhaust fan and having a suction port and a discharge port, and the discharge port of the exhaust fan casing extends to the outdoor exhaust port. As a whole, the exhaust passage leading to is formed so as to be inclined with respect to the indoor wall surface toward the outdoor exhaust port.

  The simultaneous supply / exhaust ventilation device according to the present invention further includes an exhaust fan casing having a shape covering the exhaust fan and having a suction port and a discharge port, and the discharge port of the exhaust fan casing extends to the outdoor exhaust port. In the exhaust passage leading to, the inclination angle of the side wall of the exhaust passage with respect to the discharge port is formed larger on the downstream side than on the upstream side.

  In the simultaneous supply / exhaust type ventilator according to the present invention, the exhaust fan is a centrifugal fan.

  In the simultaneous supply / exhaust type ventilator according to the present invention, the exhaust fan and the supply fan are constituted by a centrifugal fan.

  In the simultaneous supply / exhaust type ventilator according to the present invention, the centrifugal fan is a turbo fan.

  The simultaneous supply / exhaust ventilation device of the present invention is provided with an exhaust fan casing having a suction port and a discharge port so as to cover the exhaust fan, and an outer shape of the exhaust fan is provided inside the exhaust fan casing. And a guide portion formed so that the distance from the outer shape of the exhaust fan increases toward the discharge port on the downstream side.

  In the simultaneous supply / exhaust type ventilator according to the present invention, the indoor air supply port and the indoor exhaust port are arranged diagonally with respect to the main body.

  The simultaneous supply / exhaust type ventilator according to the present invention is characterized in that the indoor air supply port or the indoor exhaust port is provided on a side surface of the main body.

  In the simultaneous supply / exhaust ventilation device of the present invention, the centrifugal discharge direction of the exhaust fan is parallel to the side wall on the supply fan side forming an exhaust passage from the discharge port of the exhaust fan casing to the outdoor exhaust port. The exhaust fan has a rotation axis inclined so as to be in a proper direction.

  According to the simultaneous supply / discharge type ventilator of the present invention, the thickness of the apparatus main body in the depth direction can be reduced to reduce the size of the entire apparatus.

  In addition, a simultaneous supply / exhaust type ventilator capable of reducing the size of the apparatus and ensuring the simultaneous supply / exhaust ventilation performance is obtained.

The invention of the simultaneous supply / exhaust type ventilator according to claim 1 communicates with the supply air path and the exhaust air path of the two-layer duct in which the inside of one duct is partitioned to form the supply air path and the exhaust air path. A main body disposed on the indoor side having an outdoor air supply port and an outdoor air exhaust port formed adjacent to each other, and a supply for supplying air toward the indoor side provided inside the main body An air fan, an exhaust fan for exhausting to the outdoor side, an indoor air supply port provided in the main body so as to communicate with the outdoor air supply port via the air supply fan, and the exhaust A simultaneous supply / exhaust ventilation device including a room-side exhaust port provided in the main body so as to communicate with the outdoor-side exhaust port via a fan, wherein the rotary shaft of the supply fan and the exhaust For supplying air so that the rotation axis of the fan is perpendicular to the indoor side wall surface When the fan and the exhaust fan are arranged side by side in the direction along the indoor side wall surface and the main body is viewed from the front toward the indoor side wall surface, the center of the two-layer duct is centered on the air supply fan. Between the center of rotation and the center of rotation of the exhaust fan so as to be closer to the center of rotation of the air supply fan , when the main body is viewed from the front toward the indoor side wall surface The double-layer duct is installed in the main body at a position where the opening of the outdoor exhaust port communicating with the exhaust air passage of the double-layer duct is not included inside the suction port of the exhaust fan configured on the indoor side. The airflow resistance around the intake port of the air supply fan can be reduced and the exhaust fan can be reduced by bringing the intake port of the air supply fan closer to the outdoor air supply port. Ensure the distance from the outlet of the air outlet to the outdoor exhaust It is possible to reduce the air passage resistance of the exhaust stream, can be a supply air volume of the hourly rate discharge ventilation and exhaust air volume obtained by the same hourly discharge type ventilator with balanced performance, and the outdoor-side By providing the exhaust port away from the exhaust fan, the distance between the outdoor exhaust port and the exhaust fan discharge port can be increased, so that the exhaust port is formed from the outdoor exhaust port to the exhaust fan discharge port. an exhaust passage formed long to be able to improve the exhaust air volume that.

The invention of the simultaneous supply / exhaust type ventilator according to claim 2 communicates with the air supply and exhaust air passages of the two-layer duct in which the inside of one duct is partitioned to form the air supply and exhaust air passages. A main body disposed on the indoor side having an outdoor air supply port and an outdoor air exhaust port formed adjacent to each other, and a supply for supplying air toward the indoor side provided inside the main body An air fan, an exhaust fan for exhausting to the outdoor side, an indoor air supply port provided in the main body so as to communicate with the outdoor air supply port via the air supply fan, and the exhaust A simultaneous supply / exhaust ventilation device including a room-side exhaust port provided in the main body so as to communicate with the outdoor-side exhaust port via a fan, wherein the rotary shaft of the supply fan and the exhaust For supplying air so that the rotation axis of the fan is perpendicular to the indoor side wall surface When the fan and the exhaust fan are arranged side by side in the direction along the indoor side wall surface and the main body is viewed from the front toward the indoor side wall surface, the center of rotation of the air supply fan is An exhaust air passage of the two-layer duct when disposed in front of the indoor side wall surface when disposed in the opening of the outdoor air supply port communicating with the air supply passage of the layer duct The double-layer duct is provided to the main body at a position where the opening of the outdoor exhaust port communicating with the exhaust port is not included inside the suction port of the exhaust fan configured on the indoor side. By setting the intake port of the air supply fan close to and facing the outdoor air supply port, the outdoor side of the air supply fan is directly connected to the outdoor port via the air passage formed directly from the intake port of the air supply fan. Air can be taken in from the double-layer duct and the chamber Since the side exhaust port is located closer to the air supply fan, it is possible to arrange the exhaust fan and the air supply fan as close as possible while ensuring the performance of the exhaust fan, and the lateral dimensions of the device body can be reduced. The distance between the outdoor exhaust port and the discharge port of the exhaust fan can be increased by providing the outdoor exhaust port away from the exhaust fan. It is possible to improve the amount of exhaust air by forming a long exhaust passage that extends to the discharge port .

  The invention of the simultaneous supply / exhaust type ventilator according to claim 3 is formed by partitioning the inside of one duct and communicating with and adjacent to the supply air passage and the exhaust air passage formed in the two-layer duct. A main body having an outdoor air supply port and an outdoor air exhaust port and disposed on the indoor side, and provided inside the main body and having a suction port at a position facing the outdoor air supply port, An air supply fan for supplying air toward the outdoor side, an exhaust fan for exhausting air to the outdoor side, and an indoor side provided in the main body so as to communicate with the outdoor side air supply port via the air supply fan A simultaneous supply / exhaust type ventilator comprising an air supply port and an indoor exhaust port provided in the main body so as to communicate with the outdoor exhaust port via the exhaust fan, wherein the air supply fan The rotation axis of the exhaust fan and the rotation axis of the exhaust fan are perpendicular to the indoor side wall surface. The air supply fan and the exhaust fan are arranged side by side in a direction along the indoor side wall surface, and are provided inside the double-layer duct when the main body is viewed from the front side toward the indoor side wall surface. The partition plate is disposed so that a part of the partition plate is included in the opening of the suction port of the air supply fan, and is provided between an outdoor exhaust port and an exhaust fan discharge port. Since a long distance can be provided, the exhaust flow direction can be guided to the outdoor exhaust port without abruptly changing. Further, even if the depth of the main body in the direction perpendicular to the indoor wall is shortened to reduce the size, the exhaust passage can be formed long in an oblique direction with respect to the indoor wall, so that the exhaust air volume can be improved.

According to a fourth aspect of the present invention, in the simultaneous supply / exhaust type ventilator according to the third aspect , when the main body is viewed from the front toward the indoor side wall surface, the air supply air passage and the exhaust air passage are partitioned. The portion that is the longest distance from the partition portion to the inner surface of the air supply air passage of the two-layer duct is opposed to the outdoor air supply port in a direction perpendicular to the partition portion that is partitioned at the inner center of the two-layer duct. The two-layer duct is provided on the main body so as to be included inside the suction port of the air supply fan provided at a position where the central portion of the outdoor air supply port is provided. Since the outdoor air supply port exists on the outdoor side near the center of the intake port of the air supply fan by facing it close to the intake port of the air supply fan, intake of the airflow taken in from the two-layer duct It can reduce the resistance of the air passage and The performance of the exhaust fan also will be provided with a mouth to supply air fan closer can be ensured.

According to a fifth aspect of the present invention, in the simultaneous supply / exhaust type ventilator according to the third aspect , when the main body is viewed from the front toward the indoor side wall surface, it communicates with the exhaust air passage of the two-layer duct. The two-layer duct is connected to the main body so that a part of the opening of the outdoor exhaust port is included inside the suction port of the air supply fan provided at a position facing the outdoor air supply port. By providing the outdoor exhaust port with a bias toward the air supply fan, the distance between the outdoor exhaust port and the discharge port of the exhaust fan can be increased. Therefore, the exhaust air flow can be improved by forming a long exhaust passage formed from the outdoor exhaust port to the exhaust fan discharge port.

The invention according to claim 6 is the simultaneous supply / exhaust type ventilator according to any one of claims 3 and 4, wherein an exhaust fan casing having a suction port and a discharge port in a shape covering the exhaust fan is provided, An exhaust passage from the discharge port of the exhaust fan casing to the outdoor exhaust port is provided between the air supply fan located on the side of the exhaust fan and the indoor wall. By disposing the exhaust fan close to the air supply fan, the lateral dimension of the apparatus main body can be reduced and the main body can be made compact.

A seventh aspect of the present invention provides the simultaneous supply / exhaust type ventilator according to any one of the first to sixth aspects, wherein an exhaust fan casing having a suction port and a discharge port is provided so as to cover the exhaust fan. An exhaust passage extending from the discharge port of the exhaust fan casing to the outdoor exhaust port is formed, and an inclined portion that is inclined with respect to the indoor wall surface toward the outdoor exhaust port is formed on the side wall of the exhaust passage. The air flow discharged from the exhaust fan can be smoothly introduced into the outdoor exhaust port, the air passage resistance of the exhaust passage can be reduced, and the air flow characteristic of the exhaust flow can be improved. Further, the exhaust passage can be formed by effectively utilizing the space on the indoor wall side of the air supply fan without enlarging the apparatus main body.

An eighth aspect of the present invention is the simultaneous supply / exhaust type ventilator according to any one of the first to sixth aspects, wherein an exhaust fan casing having a suction port and a discharge port is provided so as to cover the exhaust fan. The exhaust passage extending from the discharge port of the exhaust fan casing to the outdoor exhaust port is formed so as to be inclined with respect to the indoor wall surface toward the outdoor exhaust port as a whole. The airflow discharged from the exhaust fan can be introduced more smoothly into the outdoor exhaust port, and the airflow resistance can be reduced and the airflow characteristics of the exhaust flow can be further improved.

According to a ninth aspect of the present invention, in the simultaneous supply / exhaust type ventilator according to the seventh aspect , an exhaust fan casing having a suction port and a discharge port is provided so as to cover the exhaust fan, and the exhaust fan In the exhaust passage from the discharge port of the casing to the outdoor exhaust port, the inclination angle of the side wall of the exhaust passage with respect to the discharge port is formed larger on the downstream side than on the upstream side, By forming the upstream side of the exhaust passage in a direction away from the air supply fan, and by making the angle of the downstream side of the exhaust passage with respect to the indoor wall surface smaller than the upstream side, on the upstream side, the area around the intake port of the air supply fan The air path resistance can be reduced by enlarging the space, and the depth dimension on the indoor wall side of the main body can be reduced on the downstream side.

A tenth aspect of the present invention is the simultaneous supply / exhaust type ventilator according to any one of the first to ninth aspects, wherein the exhaust fan is a centrifugal fan, Since the discharge port can be provided at an arbitrary position in the centrifugal direction, the discharge port of the exhaust fan communicating with the outdoor exhaust port can be set without impairing the performance of the fan.

The invention according to claim 11 is the simultaneous supply / exhaust type ventilator according to any one of claims 1 to 9 , wherein the exhaust fan and the supply fan are constituted by a centrifugal fan. It is possible to reduce the thickness of the main body by providing the indoor exhaust port of the exhaust fan and the indoor air supply port of the air supply fan on the side surface of the main body without impairing the exhaust performance and the air supply performance. In addition, since the indoor air supply port of the exhaust fan and the indoor exhaust port of the air supply fan are respectively provided on the side surfaces of the main body, it is possible to form an air current that prevents a short circuit between the air supply air flow and the exhaust air flow. it can.

A twelfth aspect of the present invention is the simultaneous supply / exhaust type ventilator according to the tenth or eleventh aspect of the present invention, wherein the centrifugal fan is constituted by a turbo fan, and a spiral casing is not formed. However, since the fan characteristics exceeding a certain level can be exhibited, the apparatus main body can be downsized while ensuring the ventilation performance.

The invention according to claim 13, in the hourly discharge type ventilator according to any of claims 10-12, the exhaust fan casing having a suction port and a discharge port provided in a shape to cover the exhaust fan, Inside the exhaust fan casing, there is provided a guide portion that surrounds the outer shape of the exhaust fan and is formed so that the distance from the outer shape of the exhaust fan increases toward the discharge port on the downstream side. Exhaust performance can be enhanced by making effective use of the internal space of the exhaust fan casing and streamlining the flow to the discharge port.

The invention according to claim 14 is the simultaneous supply / exhaust type ventilator according to any one of claims 1 to 13 , wherein the indoor side air supply port and the indoor side exhaust port are arranged diagonally with respect to the main body. The supply air flow to be supplied to the room and the exhaust flow for sucking the room air are formed at positions separated from each other in the main body, thereby preventing the supply air flow and the exhaust flow from short-circuiting. It is possible to ventilate the room effectively.

The invention according to claim 15 is the simultaneous supply / exhaust type ventilation device according to claim 14 , wherein the indoor air supply port or the indoor exhaust port is provided on a side surface of the main body. The air supply flow path or the exhaust flow path can be formed without providing a large space between the air supply fan or the exhaust fan and the back side of the front surface of the main body. Can do.

According to a sixteenth aspect of the present invention, in the simultaneous supply / exhaust type ventilator according to any one of the tenth to twelfth aspects, the exhaust air in which the centrifugal discharge direction of the exhaust fan extends from the discharge port of the exhaust fan casing to the outdoor exhaust port. The rotation axis of the exhaust fan is inclined so that the direction is parallel to the side wall of the supply air fan forming the passage, and the exhaust flow smoothly flows through the exhaust passage. The exhaust performance can be further improved.

  Hereinafter, the form of the simultaneous supply / exhaust type ventilator of the present invention will be described with reference to FIGS.

(Embodiment 1)
FIG. 1 is a cross-sectional view seen from below showing the configuration of the simultaneous supply / exhaust type ventilation device of the present invention. FIG. 2 is a front view showing the positional relationship between the outdoor air supply port, outdoor exhaust port, and air supply fan in the simultaneous supply / exhaust type ventilator of the present invention. FIG. 3 is a perspective view showing each component of the simultaneous supply / exhaust type ventilation device of the present invention. FIG. 4 is a side sectional view showing the internal structure of the side where the air supply fan of the simultaneous supply / exhaust type ventilation apparatus of the present invention is provided. FIG. 5 is a side sectional view showing the internal configuration of the side where the exhaust fan of the simultaneous supply / exhaust type ventilator according to the present invention is provided.

  As shown in FIGS. 1 to 5, the simultaneous supply / exhaust ventilation device according to the present invention includes an air supply passage 4 and an exhaust air passage 5 formed by a partition 6 in a two-layer duct 3 that penetrates an indoor wall 2. A frame base 14 having an outdoor air supply port 7 and an outdoor air discharge port 8 which are adjacent to each other and disposed on the indoor wall 2, and provided inside the main body surrounded by the frame base 14 and the louver 1. The air supply fan 9 for supplying air toward the indoor side, the exhaust fan 10 provided on the side of the air supply fan 9 for exhausting to the outside of the room, and the air supply fan 9 are provided. The louver is connected to the indoor air supply ports 11 and 12 provided on the upper surface and the upper front portion of the louver 1 so as to communicate with the outdoor air supply port 7 and the outdoor air exhaust port 8 via the exhaust fan 10. 1 and a room-side exhaust port 13 provided on the lower surface of 1 for air supply The direction of the supply fan 9 and the exhaust fan 10 along the wall surface of the indoor wall 2 so that the rotation shaft 9a of the fan 9 and the rotation shaft 10a of the exhaust fan 10 are perpendicular to the wall surface of the indoor wall 2 When the main body is viewed from the front toward the indoor wall 2, the center of the two-layer duct 3 is between the center of rotation of the air supply fan 9 and the center of rotation of the exhaust fan 10, The air supply fan 9 is disposed so as to be closer to the center of rotation.

  The rotation shafts 9a and 10a of the supply fan 9 and the exhaust fan 10 are perpendicular to the indoor wall 2 where the simultaneous supply / exhaust ventilation device is installed. “Disposed in a direction perpendicular to the wall 2” means that the shape of the fan is longer in the direction perpendicular to the direction parallel to the rotation axis thereof, so the fan is fed to the frame base 14. When the air fan 9 and the exhaust fan 10 are disposed, the suction port of each fan is made substantially parallel to the wall surface of the indoor wall 2 so that the protruding length of the fan toward the indoor side is reduced. It is intended that there is an effect of reducing the thickness of the simultaneous supply / exhaust type ventilator main body protruding to the indoor side. That is, when the main body is attached to the indoor wall 2, the rotation shafts 9 a and 10 a of the air supply fan 9 and the exhaust fan 10 are eventually connected to the indoor wall 2 depending on the state of the indoor wall 2 where the main body is installed. When the projector is installed with a slight inclination with respect to the vertical direction, or the rotary shafts 9a and 10a of the air supply fan 9 and the exhaust fan 10 are slightly inclined with respect to the indoor wall 2 from the vertical direction. Even in the case where the shape ventilation device is configured, the present invention includes the case where the intake ports of the air supply fan 9 and the exhaust fan 10 provided in the main body are in a substantially parallel state along the wall surface of the indoor wall 2. Is.

  As shown in FIG. 2, when the main body is viewed from the front toward the indoor wall 2, the rotation shaft 9 a of the air supply fan 9 and the rotation shaft 10 a of the exhaust fan 10 are perpendicular to the wall surface of the indoor wall 2. Thus, the air supply fan 9 and the exhaust fan 10 are arranged side by side in the direction along the wall surface of the indoor wall 2, and the rotation shaft 9 a serving as the center of rotation of the air supply fan 9 is provided in the double-layer duct 3. The air supply air passage 4 is arranged so as to be included in the opening of the outdoor air supply port 7 communicating with the air supply air passage 4. Further, the rotating shaft 9a shown in FIG. 2 is disposed at a position that is substantially the center of gravity of the outdoor air supply port 7, but when included in the outdoor air supply port 7, it is located above or below this. It may be arranged at a position.

  Here, when the main body is viewed from the front toward the indoor wall 2, the center (partition part) of the two-layer duct 3 is formed from an intermediate position between the rotation shaft 9 a of the air supply fan 9 and the rotation shaft 10 a of the exhaust fan 10. Experimental data in the case where the middle part 6 is moved closer to the air supply fan 9 will be described. The experimental data are the supply air volume and the exhaust air volume when the center of the double-layer duct 3 is moved 40 mm and 55 mm toward the supply air fan 9 from the intermediate position. Both the air supply fan 9 and the exhaust fan 10 used are turbofans having a fan diameter of 120 mm. The two-layer duct 3 has a nominal diameter of φ100 and is divided into two in the horizontal direction by the partitioning portion 6 and the exhaust air flow path 4 and the exhaust fan 10. A flow path 5 is formed. In the simultaneous supply / exhaust ventilation device shown in FIG. 1, the air passage partition 19 corresponds to the intermediate position, and the position of the two-layer duct 3 shown in FIG. 1 is closer to the air supply fan 9 from the intermediate position. It corresponds to a position of 55 mm.

And under the conditions of temperature 26.4 ° C., humidity 58%, atmospheric pressure 1015 hPa, 60 HZ, power supply voltage 115 V, and static pressure in the chamber 0 mmH ₂ O, the measurement result is
For 40 mm, supply air volume 29.3m ³ / h, exhaust air volume 25.6m ³ / h
In the case of 55 mm, the supply air volume is 30.5 m ³ / h and the exhaust air volume is 26.0 m ³ / h.
And
In the case of 55 mm, the increase rate of the air volume with respect to 40 mm (= (55 mm air volume−40 mm air volume) / 40 mm air volume) is the result that the increase rate of the supply air volume is 4.1% and the increase rate of the exhaust air volume is 1.6%. It was. Similarly, it has been confirmed that the air volume tends to increase as the partition 6 of the two-layer duct 3 approaches the air supply fan 9 from 0 mm to 40 mm.

  From the above results, when the main body is viewed from the front toward the indoor wall 2, the outdoor air supply port 7 communicating with the air supply path 4 of the two-layer duct 3 approaches the rotating shaft 9 a of the air supply fan 9. It can be said that it is desirable to arrange in.

  Further, as shown in FIG. 2, when the main body is viewed from the front toward the indoor wall 2, the partition section 6 partitioned at the inner center of the two-layer duct 3 in order to partition the supply air path 4 and the exhaust air path 5. The suction portion of the air supply fan 9 provided at a position where the distance from the partition 6 to the inner surface of the air supply air passage 4 of the two-layer duct 3 is opposed to the outdoor air supply port 7 in a direction perpendicular to the outside. It is set as the structure which provides the double layer duct 3 with respect to a main body so that it may be contained inside the opening | mouth.

  In addition, when the main body of the double-layer duct 3 is viewed from the front toward the indoor wall 2, a part of the opening of the outdoor exhaust port 8 communicating with the exhaust air passage 5 of the double-layer duct 3 is the outdoor air supply port 7. Is provided so as to be included inside the suction port of the air supply fan 9 provided at a position opposite to.

  When the main body is viewed from the front toward the indoor wall 2, air supply is performed so that the rotation shaft 9 a of the air supply fan 9 and the rotation shaft 10 a of the exhaust fan 10 are perpendicular to the wall surface of the indoor wall 2. The fan 9 and the exhaust fan 10 are arranged side by side in the direction along the wall surface of the indoor wall 2, and a part of the partition 6 provided inside the two-layer duct 3 is a suction port of the air supply fan 9. It is good also as a structure arrange | positioned so that it may be contained in opening.

  Further, when the main body is viewed from the front toward the indoor wall 2, the opening of the outdoor exhaust port 8 communicating with the exhaust air passage 5 of the two-layer duct 3 is a suction port of the exhaust fan 10 configured on the indoor side. It is good also as a structure which provided the double layer duct 3 with respect to the main body in the position which is not contained inside.

  Further, the rotating shaft 10 a of the exhaust fan 10 is disposed above the center line with respect to the length of the frame base 14 in the vertical direction. That is, it is arranged in the upper part in the main body, and is configured to increase the distance from the lower surface portion exhaust port 13 formed on the lower surface of the louver 1 to the suction port of the exhaust fan 10.

  Further, the rotation shaft 10 a of the exhaust fan 10 is disposed so as to be positioned above the rotation shaft 9 a of the air supply fan 9 in the vertical direction of the main body. The exhaust passage 30 reaching the mouth can be formed long.

  FIG. 7 is a perspective view showing a state in which the simultaneous supply / exhaust ventilation device of the present invention is installed on an indoor wall. As shown in FIG. 7, the simultaneous supply / exhaust type ventilator according to the present invention prevents the curtain or the like from being sucked into the opening of the indoor exhaust port 13, or near the indoor exhaust port 13 or the indoor supply air. The window is formed on the wall surface of the indoor wall 2 where the window frame is formed so that there is no obstacle to airflow formation in the vicinity of the front surface air supply port 11 and the upper surface air supply port 12 as the air ports. It is installed with a predetermined distance from a frame or a wall surface adjacent to the indoor wall 2. At this time, the upper surface of the main body is disposed on a wall surface at a position about 10 cm to 40 cm below the ceiling surface, and there is a wall surface adjacent to the window frame and the indoor wall 2 with a distance of 10 cm or more from the side surface of the main body. It is desirable to install as follows.

  As shown in FIG. 1, the louver 1 has a resin box shape and is covered from the front so as to include an air supply fan 9 and an exhaust fan 10 inside thereof, and an indoor air supply port of the air supply fan 9. The front side air supply port 11 and the upper surface part air supply port 12 are opened, and the indoor side exhaust port 13 is opened at the lower surface portion diagonally to these openings. In the louver 1, lock terminals 1 a provided at two sides are engaged with lock terminal engagement ports (not shown) provided in the frame base 14 and lock terminal engagement ports 17 b provided in the exhaust fan casing 17. Thus, the louver 1 is detachably provided on the indoor side.

  An exhaust fan 10 exists on one side of the front side of the louver 1, and a motor for driving the exhaust fan 10 is screwed to an exhaust motor fixing plate 15 via a flange formed on the side. The exhaust motor fixing plate 15 is fixed to a plurality of bosses standing on the frame base 14 with screws. The exhaust motor fixing plate 15 is held in front of the frame base 14 at a predetermined distance by a boss, and an electrical case 16 is disposed between the exhaust motor fixing plate 15 and the frame base 14. The electrical case 16 houses a circuit board for driving and controlling the exhaust motor and the air supply motor, a relay circuit for driving each fan in a strong and weak manner, a display unit for displaying the operation state, and the like.

  The exhaust fan 10 is a centrifugal fan, and the centrifugal fan here has a suction port that sucks in a direction parallel to the rotation axis of the fan, and forms an air flow that is discharged outward or obliquely rearward in the direction perpendicular to the rotation axis. Turbo fans and sirocco fans are used. The air supply fan 9 and the exhaust fan 10 shown in FIG. 1 are composed of turbo fans having the same shape as an example of a centrifugal fan.

  The exhaust fan 10 is surrounded by an exhaust fan casing 17, and a bell having an opening with a diameter smaller than the opening diameter of the suction port and an inner peripheral portion curled toward the fan side in front of the suction port. A mouse 17 a is provided, and the bell mouth 17 a is detachably attached to the exhaust fan casing 17. Further, the exhaust fan 10 can be removed by removing the bell mouth 17a and loosening the spinner 10b fixing the exhaust fan 10 by rotating it in the same direction as the rotation direction of the fan.

  FIG. 6 is a rear view showing the configuration of the exhaust fan casing and the exhaust fan of the simultaneous supply / exhaust type ventilator according to the present invention. As shown in FIG. 6, the outer shape of the blade of the exhaust fan 10 is enclosed in the exhaust fan casing 17, and the distance from the outer shape of the blade of the exhaust fan 10 increases toward the discharge port 31 on the downstream side. A guide portion 32 formed as described above is provided. The guide portion 32 is formed on a part or all of the outside of the outer shape of the blade of the exhaust fan 10.

  As shown in FIG. 1, on the other side of the back side of the front surface of the louver 1, an air passage partition 19 that divides the air supply flow path and the exhaust flow path is interposed next to the exhaust fan 10 to supply air. The fan 9 is disposed with its suction port facing the indoor wall 2 side. The motor that is provided on the front side of the louver 1 relative to the air supply fan 9 and drives the air supply fan 9 is fixed to the air supply motor fixing plate 18 with a screw through a flange portion formed on the side portion thereof. Has been. The supply motor fixing plate 18 is located closer to the indoor wall 2 than the intake port of the supply fan 9, and has a smaller diameter than the opening diameter of the intake port of the supply fan 9 and has an inner peripheral portion toward the fan side. It is fixed to an orifice 20 having a bell mouth portion having a curled opening. The orifice 20 is fixed to a plurality of bosses standing upright from the frame base 14 by screws, and the orifice 20 is held by the boss at a predetermined interval from the frame base 14 so as to be sandwiched between the orifice 20 and the frame base 14. The suction side casing 21 is interposed between the two. The suction-side casing 21 is formed of a heat insulating material such as a foam material in order to prevent condensation because it is located in a flow path of a supply air flow through which outdoor cold air flows.

  A discharge-side casing 22 having an opening in which a portion of the front side of the louver 1 of the motor is housed on the back side of the front surface of the louver 1 on the indoor side of the supply motor fixing plate 18 is spaced from the supply motor fixing plate 18 by a predetermined distance. The air supply motor fixing plate 18 is disposed so as to be provided to form an air supply passage. The opening in which the front side of the louver 1 of the motor provided in the discharge-side casing 22 is accommodated is formed in a dimensional relationship such that the motor and the discharge-side casing 22 are in close contact with each other by accommodating the motor in the opening. This prevents leakage to the adjacent exhaust flow path. The discharge-side casing 22 is formed of a heat insulating material such as a foam material in order to prevent condensation because it is located in a flow path of a supply airflow through which cool air outside the room flows.

  As another configuration, the suction side casing 21 and the discharge side casing 22 are all formed of a heat insulating material such as a foam material. Moreover, it is good also as a structure which forms each of these components from a foaming material as an integral member.

  Further, the side wall on the exhaust fan 10 side of the suction side casing 21 is configured to extend so as to contact the back side of the front surface of the louver 1 or the side wall on the exhaust fan 10 side of the discharge side casing 22 is configured as a louver. It is good also as a structure which partitions off an air supply flow path and an exhaust flow path by either the structure extended from the front back side of 1 to the frame base 14, and comprised.

  In addition, both the air supply motor fixing plate 18 and the exhaust motor fixing plate 15 have a ring-shaped recess formed by drawing in the motor mounting portion, and the motor flange portion is installed and fixed in the recess. Thus, there is an effect that the size of the main body in the direction parallel to the rotation axis of the fan can be reduced.

  The frame base 14 is fixed to the mounting plate 23 fixed to the indoor wall 2 by engaging the upper part with a claw and screwing the lower part with a screw or the like. A shutter cover 24 is attached to the frame base 14 between the mounting plate 23 and a shutter for opening and closing the outdoor air supply port 7 and the outdoor exhaust port 8 between the frame base 14 and the shutter cover 24. 25 is freely opened and closed. The mounting plate 23 is provided with a communication opening having a shape in which the outdoor air supply port 7 and the outdoor exhaust port 8 are combined, and a two-layer duct having an air supply opening and an exhaust opening in which the communication opening is divided into two. A connecting member (not shown) passes through the indoor wall 2 and communicates between the outside and the room, the supply air passage 4 and the exhaust air passage 5 of the two-layer duct 3, the outdoor air supply port 7 and Two layers in which the two-layer duct connecting member is accommodated in the indoor wall 2 in a state where the two-layer duct connecting member is attached to the mounting plate 23 in order to communicate with the outdoor exhaust ports 8 respectively. The mounting plate 23 is connected to the duct 3 and fixed to the wall surface of the indoor wall 2. The frame base 14 is fixed to the mounting plate 23 by aligning the outdoor air supply port 7 and the outdoor air discharge port 8 of the main body with the air supply opening and the exhaust opening formed by the two-layer duct connecting member. In this way, the air supply passage 4 and the outdoor air supply port 7, the exhaust air passage 5 and the outdoor air outlet 8 communicate with each other, and an independent air supply passage and exhaust passage can be configured. In addition, the outdoor unit is provided with an air supply opening 26a for allowing outdoor air to flow into the air supply air passage 4 and an exhaust opening 26b for discharging indoor air exhausted from the exhaust air passage 5 to the outside. A hood 26 is provided so as to cover the two-layer duct 3 protruding from the outdoor wall surface.

  FIG. 4 is a side cross-sectional view showing a configuration inside the main body on the side where the air supply fan 9 is provided.

  As shown in FIG. 4, the outdoor air discharged in the centrifugal direction from the air supply fan 9 is then divided into two flow paths (a supply flow path A and a supply flow path B described later) and supplied to the room. That is, from the upper surface air supply port 12 via the air supply passage A that is surrounded by the back surface of the louver 1, the air supply motor fixing plate 18 and the orifice 20 and formed in the centrifugal direction of the air supply fan 9. The air is blown upward and / or obliquely forward into the room, and passes through the space formed between the lower back side of the discharge-side casing 22 and the lower portion of the air supply motor fixing plate 18 from the centrifugal direction of the air supply fan 9. , Obliquely forward from the front side air inlet 11 to the room via the air supply passage B formed between the air supply motor fixing plate 18 and the back side of the discharge side casing 22 so as to be folded back upward. Blows upward.

  In addition, when a centrifugal fan, for example, a turbo fan or a sirocco fan is used as an air supply fan, as described above, the characteristics of the centrifugal fan are such that discharge ports can be freely configured at a plurality of locations in the centrifugal direction. In this way, it is possible to flow the air supply flow through the two flow paths, and this configuration reduces the air path resistance of the air supply flow path, and the ability of the fan can be further exhibited. In particular, when a turbo fan is used, fan characteristics exceeding a certain level can be exhibited without forming a spiral casing, so that the apparatus main body can be downsized while ensuring ventilation performance.

  Further, as shown in FIG. 4, the front surface shape of the louver 1 has a shape in which the center portion projects forward from the side portion, and the flow volume of the air supply flow path B formed on the back side of the front surface of the louver 1 is A configuration to be secured. The front shape of the louver 1 intended here is a curved shape of the cross-sectional shape of the front surface of the louver 1 or a cross-sectional shape of the front surface of the louver 1 having a flat shape at the center, and at the top or bottom. A large curved surface is formed. In addition, the air supply air flowing through the air supply passage B rises from the lower side to the upper side of the motor, splits into two hands, flows upward so as to wrap the side surface, and reaches the front side air supply port 11.

  As shown in FIGS. 1 and 4, pollen and dust contained in outdoor air are collected between the outdoor air supply port 7 and the intake port of the air supply fan 9 so as not to be supplied indoors. The filter 27 is housed and disposed in a filter frame 28 formed of a highly flexible resin material. The filter 27 is formed in a pleat shape, and has flexibility that can be bent in the middle of the filter 27. With this configuration, when the filter 27 is taken out of the main body for cleaning or replacement, the filter is removed together with the filter frame 28 when the louver 1 is removed from the frame base 14 and the handle of the filter frame 28 is pulled out downward. When the filter 27 is bent forward and pulled out, the workability of pulling out the filter 27 can be improved even if the filter 27 is provided closer to the indoor wall 2 side. This configuration is particularly useful in the simultaneous supply / exhaust type ventilation device aiming at miniaturization and thinning as in the present invention. In addition, an air layer 29 in which the filter 27 is not formed is formed below the filter frame 28.

  FIG. 5 is a side cross-sectional view showing a configuration inside the main body on the side where the exhaust fan 10 is provided. As shown in FIGS. 1, 2, and 5, an exhaust passage 30 is formed from the discharge port 31 of the exhaust fan casing 17 to the outdoor exhaust port 8, and the side wall of the exhaust passage 30 on the supply fan 9 side is formed. It is set as the structure which forms inclined part 30a, 30b. Further, by forming the inclined portion 30a and the inclined portion 30b continuously, the exhaust passage 30 from the discharge port 31 of the exhaust fan casing 17 to the outdoor exhaust port 8 as a whole is directed toward the outdoor exhaust port 8 as a whole. It is set as the structure formed so that it may incline with respect to 2 wall surfaces. In addition, an inclined portion 30 a is formed on the upstream side of the side wall of the exhaust passage 30, and an inclined portion 30 b is formed on the downstream side, and the angle Y of the inclined portion 30 b with respect to the discharge port 31 is the same as that of the inclined portion 30 a with respect to the discharge port 31. It is configured to be larger than the angle X. That is, the inclination angle of the side wall of the exhaust passage 30 with respect to the discharge port 31 of the exhaust passage 30 is formed larger on the downstream side than on the upstream side. The exhaust passage 30 extending from the discharge port 31 of the exhaust fan casing 17 to the outdoor exhaust port 8 is provided between the air supply fan 9 provided on the side of the exhaust fan 10 and the indoor wall 2. A filter 27 is disposed on the side thereof.

  Further, a side wall portion facing the supply air fan 9 side of the exhaust passage 30 is formed of a foam material to prevent the occurrence of condensation. As shown in FIG. 5, the front shape of the louver 1 has a shape in which the center portion projects forward from the side portion, and the suction port of the exhaust fan 10 formed on the back side of the front surface of the louver 1 and the louver 1. It is set as the structure which ensures the volume of the space comprised by the front back side. With this configuration, a suction space can be formed in front of the suction port of the exhaust fan 10, and the apparatus can be reduced by reducing the thickness of the main body on the indoor wall 2 side without sacrificing the exhaust performance while ensuring the necessary exhaust air volume. It becomes possible to reduce the size. In addition, the front shape of the louver 1 intended here is a curved shape of the cross section of the front surface of the louver 1 or the cross section of the front surface of the louver 1 is formed in a flat shape at the center, A large curved surface is formed in the lower part.

  Further, an inclined surface 17 c that is inclined obliquely downward toward the indoor wall 2 is formed on the outdoor exhaust port 8 side of the exhaust fan casing 17. An exhaust passage through which room air is introduced is formed between the inclined surface 17c and the lower surface of the louver 1, which is effective in reducing ventilation resistance. Further, even if a large curved surface is formed in the lower part of the louver 1 in order to make it appear thin when the main body is attached to the indoor wall 2, the ventilation resistance can be reduced by the exhaust passage formed by the inclined surface 17c. Therefore, the apparatus main body can be thinned without sacrificing the exhaust performance. Further, since the exhaust fan 10 is disposed on the upper side with respect to the main body so that the rotation shaft 10a of the exhaust fan 10 is disposed above the center line with respect to the vertical length of the frame base 14, the above-described As described above, the apparatus main body can be made thinner while maintaining the exhaust performance.

  By implementing the present invention as described above, it is possible to reduce the dimensions of the apparatus main body with respect to the horizontal dimension and the depth dimension on the indoor wall side. For example, when a turbo fan with a fan diameter of 120 mm is used for both an exhaust fan and an air supply fan, the size of the apparatus main body is about 320 mm in horizontal dimension, about 190 mm in vertical dimension, and depth on the indoor wall side. In addition to being able to downsize to about 100mm, in this size simultaneous supply / exhaust type ventilation system, the 6 tatami-12 tatami room can be ventilated with constant ventilation air volume that meets the standards stipulated by the Building Standards Act. I have confirmed.

  As described above, according to the present embodiment, the air supply fan 9 is configured such that the rotation shaft 9 a of the air supply fan 9 and the rotation shaft 10 a of the exhaust fan 10 are perpendicular to the wall surface of the indoor wall 2. And the exhaust fan 10 are arranged side by side in the direction along the wall surface of the indoor wall 2, and when the main body is viewed from the front toward the indoor wall 2, the center of the two-layer duct 3 is the center of rotation of the air supply fan 9. And the center of rotation of the air supply fan 9 so as to be closer to the center of rotation of the air supply fan 9, the suction port of the air supply fan 9 is connected to the outdoor air supply port 7. By approaching, the air path resistance around the suction port of the air supply fan 9 can be reduced, and the distance from the discharge port of the exhaust fan 10 to the outdoor exhaust port 8 is secured to reduce the air path resistance of the exhaust flow. be able to.

  Further, according to the present embodiment, when the main body is viewed from the front toward the indoor wall 2, the rotation shaft 9 a of the air supply fan 9 and the rotation shaft 10 a of the exhaust fan 10 are in relation to the wall surface of the indoor wall 2. The air supply fan 9 and the exhaust fan 10 are arranged side by side in the direction along the wall surface of the indoor wall 2 so as to be in the vertical direction, and the rotation shaft 9a serving as the center of rotation of the air supply fan 9 has two layers. Since the air supply fan 9 is disposed so as to be included in the opening of the outdoor air supply port 7 communicating with the air supply air passage 4 of the duct 3, the suction port of the air supply fan 9 is brought close to the outdoor air supply port 7 and is opposed to the position. Since the outdoor air can be taken in from the two-layer duct 3 through the air passage formed directly from the intake port of the air supply fan 9 by setting to, excellent air supply air flow characteristics are obtained. It is done. Further, by setting the suction port of the air supply fan 9 close to and facing the outdoor air supply port 7, the outdoor exhaust port 8 is provided closer to the air supply fan 9 and the exhaust fan 10. Since the distance from the discharge port to the outdoor exhaust port 8 can be secured, the exhaust fan 10 and the air supply fan 9 can be arranged as close as possible while securing the performance of the exhaust fan 10. The lateral dimension of the main body can be reduced.

  Further, according to the present embodiment, when the main body is viewed from the front toward the indoor wall 2, a part of the partition 6 provided inside the two-layer duct 3 is the opening of the suction port of the air supply fan 9. Since the distance between the outdoor exhaust port 8 and the discharge port of the exhaust fan 10 can be increased, the outdoor exhaust port 8 reaches the discharge port of the exhaust fan 10. The formed exhaust passage 30 can be formed long, and the exhaust passage 30 is formed obliquely with respect to the interior wall 2 even if the depth of the main body in the direction perpendicular to the interior wall 2 is shortened to reduce the size. As a result, the flow direction of the exhaust flow can be guided to the outdoor exhaust port without abruptly changing, and the amount of exhaust air can be improved.

  Further, according to the present embodiment, when the main body is viewed from the front toward the indoor wall 2, it is perpendicular to the partition section 6 partitioned at the inner center of the two-layer duct 3, and the two layers from the partition section 6. The two-layer duct 3 is arranged such that the portion of the duct 3 that is the longest distance to the inner surface of the air supply air passage is included inside the intake port of the air supply fan 9 provided at a position facing the outdoor air supply port 7. Since the central portion of the outdoor air supply port 7 is brought close to and opposed to the suction port of the air supply fan 9, the chamber is provided on the outdoor side near the suction port central portion of the air supply fan 9. Since the outer air supply port 7 exists, it is possible to reduce the resistance of the intake air flow path of the intake air flow taken in from the two-layer duct 3 and to provide the outdoor exhaust port 8 closer to the air supply fan 9. Therefore, the performance of the exhaust fan 10 can be secured.

  Further, according to the present embodiment, the double-layer duct 3 is located at a position where a part of the opening of the outdoor exhaust port 8 faces the outdoor air supply port 7 when the main body is viewed from the front toward the indoor wall 2. Is provided so as to be included inside the intake port of the air supply fan 9 provided in the outdoor exhaust port 8. Since the distance between the air outlet and the discharge port of the exhaust fan 10 can be long, the amount of exhaust air can be improved.

  Further, according to the present embodiment, when the main body is viewed from the front toward the indoor wall 2, the two-layer duct is provided at a position where the opening of the outdoor exhaust port 8 is not included inside the suction port of the exhaust fan 10. 3 is provided on the main body, and the distance between the outdoor exhaust port 8 and the discharge port of the exhaust fan 10 can be increased by providing the outdoor exhaust port 8 away from the exhaust fan 10. The exhaust air volume can be improved.

  Further, according to the present embodiment, the exhaust passage 30 is provided between the air supply fan 9 provided on the side of the exhaust fan 10 and the indoor wall 2, so that the exhaust fan 10 is supplied. By arranging it close to the air fan 9, the lateral dimension of the apparatus main body can be reduced.

  In addition, according to the present embodiment, the rotating shaft 10a of the exhaust fan 10 is disposed closer to the upper side in the main body, and therefore the exhaust fan 10 from the indoor exhaust port 13 formed on the lower surface of the louver 1. In order to reduce the size, the thickness of the main body in the direction perpendicular to the indoor wall 2 is reduced to reduce the distance between the suction port of the exhaust fan 10 and the back side of the front surface of the main body. In addition, it is possible to secure a suction space for the exhaust fan 10 to suck room air.

  Further, according to the present embodiment, since the front surface air supply port 11 is provided in a horizontally long shape above the front surface of the louver 1, the front surface of the main body has a large non-opening area and is smooth with few uneven portions. By forming on the surface, dust and the like are less likely to adhere, and the cleaning property and appearance are excellent.

  In addition, according to the present embodiment, the suction side casing 21 and the discharge side casing 22 are all formed of a heat insulating material such as foam material, so that the suction side casing 21 and the discharge side casing 22 are all formed. Since it is located in the flow path of the supply airflow through which the outdoor cool air flows, it is effective in preventing condensation.

  Further, according to the present embodiment, the constituent elements of the suction-side casing 21 and the discharge-side casing 22 are formed of the foam material as an integral member, so that the gaps in the flow path due to component reduction and integration are achieved. It has an effect in reducing the leakage area, and has the effect that the strength of the product can be improved by the foam-formed part.

  Further, according to the present embodiment, the side wall of the suction side casing 21 on the exhaust fan 10 side is extended so as to contact the back side of the front surface of the louver 1, or the discharge side casing 22 is for exhaust. By adopting any configuration in which the side wall on the fan 10 side extends from the front back side of the louver 1 to the frame base 14, the air passage partition 19 is not required, and the horizontally long dimension of the main body is further shortened. The size of the main body can be reduced.

  Further, according to the present embodiment, the air supply passage A is surrounded by the upper surface rear side of the louver 1, the air supply motor fixing plate 18 and the orifice 20 and formed in the centrifugal direction of the air supply fan 9. Then, the air is blown upward and / or obliquely forward into the room from the upper surface air supply port 12, and between the lower back side of the discharge-side casing 22 and the lower portion of the air supply motor fixing plate 18 from the centrifugal direction of the air supply fan 9. It passes through the formed space, passes through the air supply motor fixing plate 18 and the air supply passage B formed on the back side of the discharge-side casing 22 so as to be folded back toward the upper side of the main body. By forming the air supply path in the main body into two flow paths, the air flow into the room is blown out in a wide range toward the room without being biased in one direction. So the whole room The supply air can be spread efficiently.

  Further, according to the present embodiment, the space generated on the louver 1 side of the air supply motor fixing plate 18 can be utilized as the air supply passage B, not just the space, so that the ventilation performance and efficiency are improved with the downsizing of the apparatus. Will be.

  Further, according to the present embodiment, the front surface shape of the louver 1 is formed so that the center portion projects forward from the side portion, and the flow volume of the air supply flow path B formed on the back side of the front surface of the louver 1 is ensured. With this configuration, the volume of the air supply flow path B around the motor can be made larger, so the air flow resistance is further reduced and the air supply air blowing performance is improved while reducing the size of the device. Can be made.

  In addition, according to the present embodiment, the supply airflow flowing through the supply air passage B is divided into two hands from the lower side of the motor and flows upward so as to wrap the side surface of the motor, so that the front air supply port 11 is reached. Has the effect of cooling the temperature to alleviate the temperature rise.

  Further, according to the present embodiment, the air layer 29 in which the filter 27 is not formed is formed in the lower part of the filter frame 28, so that the outdoor air taken in is insulated by the air layer 29. Thus, the effect of preventing condensation can be obtained.

  Further, according to the present embodiment, since the inclined portions 30a and 30b are provided on the side wall of the exhaust passage 30 from the discharge port 31 of the exhaust fan casing 17 to the outdoor exhaust port 8, the exhaust fan 10 The discharged airflow can be smoothly introduced into the outdoor exhaust port 8, and the airflow resistance can be reduced and the airflow characteristics of the exhaust flow can be improved.

  Further, according to the present embodiment, the exhaust passage 30 extending from the discharge port 31 of the exhaust fan casing 17 to the outdoor exhaust port 8 is formed so as to be inclined with respect to the wall surface of the indoor wall 2 as a whole. Therefore, the airflow discharged from the exhaust fan 10 can be introduced more smoothly into the outdoor exhaust port 8, and the airflow resistance can be reduced and the airflow characteristics of the exhaust flow can be further improved.

  Further, according to the present embodiment, since the inclination angle of the side wall of the exhaust passage 30 with respect to the discharge port 31 is formed larger on the downstream side than on the upstream side, the upstream exhaust passage 30 is connected to the air supply fan 9. By forming the exhaust passage 30 on the downstream side so that the angle of the downstream exhaust passage 30 with respect to the indoor wall surface is smaller than that on the upstream side, a space around the suction port of the air supply fan 9 is formed on the upstream side to increase the air path resistance. In addition, it is possible to reduce the depth dimension of the main body on the indoor wall 2 side on the downstream side, thereby improving ventilation performance and downsizing the apparatus.

  In addition, according to the present embodiment, by configuring the exhaust fan 10 with a centrifugal fan, a discharge port can be provided in the centrifugal direction at any place around the fan, so that the performance of the fan is impaired. In addition, the discharge port of the exhaust fan communicating with the outdoor exhaust port can be set and the space behind the exhaust fan is not required, so the thickness of the main body in the direction perpendicular to the indoor wall is reduced. Can do.

  Further, according to the present embodiment, the exhaust fan 10 and the air supply fan are constituted by centrifugal fans, so that the indoor air outlet 13 of the exhaust fan 10 and the indoor air supply port of the air supply fan 9 are configured. Can be provided on the side surface of the main body without impairing the exhaust performance and the air supply performance, so that the main body can be thinned.

  In addition, according to the present embodiment, the exhaust fan 10 or the air supply fan 9 is constituted by a turbo fan, so that a certain level of fan characteristics can be exhibited without forming a spiral casing. The main body of the apparatus can be reduced in size while ensuring ventilation performance.

  Further, according to the present embodiment, the exhaust fan casing 17 encloses the outer shape of the exhaust fan 10, and the distance from the outer shape of the exhaust fan 10 increases toward the discharge port 31 on the downstream side. Since the guide part 32 formed in the above is provided, the flow to the discharge port 31 can be made efficient by effectively utilizing the internal space of the exhaust fan casing 17.

  In addition, according to the present embodiment, the upper surface air supply port 12, the front surface air supply port 11, and the indoor side exhaust port 13 are arranged diagonally away from the main body. By forming the exhaust flow for sucking room air at a position distant from the main body, it is possible to prevent the supply air flow and the exhaust flow from short-circuiting.

  In addition, according to the present embodiment, since the upper surface air supply port 12 or the indoor exhaust port 13 is provided on the side surface of the main body, the space between the air supply fan 9 or the exhaust fan 10 and the front back side of the main body is increased. Even if it is not provided large, an air supply passage or an exhaust passage can be formed, so that the depth dimension of the apparatus main body can be reduced.

  Further, according to the present embodiment, the outer shape of the blade of the exhaust fan 10 is enclosed in the exhaust fan casing 17 and is spaced from the outer shape of the blade of the exhaust fan 10 toward the discharge port 31 on the downstream side. By providing the guide portion 32 formed so as to be large, it is possible to efficiently use the internal space of the exhaust fan casing 17 and to make the flow to the discharge port 31 efficient.

(Embodiment 2)
FIG. 8 is a partial cross-sectional view showing the configuration of the exhaust fan in the simultaneous supply / exhaust ventilation device of the present embodiment. As shown in FIG. 8, the exhaust fan 10 is arranged so that the centrifugal discharge direction 33 of the exhaust fan 10 using the centrifugal fan is parallel to the side wall on the air supply fan 9 side forming the exhaust passage 30. The exhaust fan 10 is arranged with the rotation shaft 10a inclined. Either the upstream inclined portion 30a or the downstream inclined portion 30b that forms the side wall on the air supply fan 9 side, or the exhaust centrifugal direction 33 of the exhaust fan 10 is parallel to the entire side wall. The rotational axis of the exhaust fan 10 is tilted.

  The present embodiment is different from the configuration of the first embodiment only in the above description, and the other configurations are the same, and the description thereof is omitted.

  As described above, according to the present embodiment, the centrifugal discharge direction 33 of the exhaust fan 10 that is a centrifugal fan is parallel to the side wall on the air supply fan 9 side that forms the exhaust passage 30. Since the exhaust fan 10 is arranged with the rotation axis of the exhaust fan 10 inclined, the exhaust performance can be further improved by allowing the exhaust flow to flow smoothly through the exhaust passage 30.

  The simultaneous supply / exhaust type ventilator according to the present invention has a configuration capable of reducing the size and thickness of the apparatus body, and is applied to other devices connected to the two-layer duct by supplying and exhausting air simultaneously. And is useful in application to heat exchange ventilators and the like.

Sectional drawing seen from the bottom which shows the internal structure of the simultaneous supply / exhaust type | mold ventilation apparatus in Embodiment 1 of this invention The front view which shows the positional relationship of the outdoor air supply port and outdoor exhaust port, and the air supply fan in the same simultaneous supply / exhaust type ventilator The perspective view which shows the structure of the same simultaneous supply / exhaust type ventilator Side sectional view showing the internal structure of the same supply / exhaust ventilation device on the side where the air supply fan is provided Side sectional view showing the internal structure of the side on which the exhaust fan of the simultaneous supply / exhaust ventilation device is provided Rear view showing configurations of exhaust fan casing and exhaust fan of same simultaneous supply / exhaust ventilator The perspective view which shows the state which installed the same simultaneous supply / exhaust type ventilation apparatus in the indoor wall The fragmentary sectional view which shows the structure of the exhaust fan in the simultaneous supply / exhaust type | mold ventilation apparatus in Embodiment 2 of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Louver 2 Indoor wall 3 Double-layer duct 4 Supply air path 5 Exhaust air path 6 Partition part 7 Outdoor air supply port 8 Outdoor exhaust port 9 Supply fan 9a Rotating shaft 10 Exhaust fan 10a Rotating shaft 11 Front surface supply Air Vent 12 Upper Air Supply Vent 13 Indoor Exhaust Vent 14 Frame Base 15 Exhaust Motor Fixing Plate 16 Electrical Case 17 Exhaust Fan Casing 17a Bell Mouth 17b Lock Terminal Engagement Port 17c Inclined Surface 18 Supply Motor Fixing Plate 19 Wind Road partition portion 20 Orifice 21 Suction side casing 22 Discharge side casing 23 Mounting plate 24 Shutter cover 25 Shutter 26 Outdoor hood 26a Air supply opening 26b Exhaust opening 27 Filter 28 Filter frame 29 Air layer 30 Exhaust passage 30a Inclined portion 30b Inclined portion 31 Exhaust Exit 32 Guide part 33 Centrifugal spout Direction

Claims (16)

An outdoor air supply port and an outdoor air outlet that are formed adjacent to each other in communication with the air supply and exhaust air passages of a two-layer duct that forms an air supply and exhaust air passage by partitioning the inside of one duct. A main body having an exhaust port disposed on the indoor side, an air supply fan provided inside the main body for supplying air toward the indoor side, and an exhaust fan for exhausting to the outdoor side And an indoor air supply port provided in the main body so as to communicate with the outdoor air supply port via the air supply fan, and a communication with the outdoor exhaust port via the exhaust fan. A simultaneous supply / exhaust ventilation device including an indoor exhaust port provided in the main body, wherein a rotation axis of the supply fan and a rotation axis of the exhaust fan are perpendicular to an indoor side wall surface The air supply fan and the exhaust fan are connected to the indoor side wall When the main body is viewed from the front toward the indoor side wall surface, the center of the two-layer duct is the center of rotation of the air supply fan and the center of rotation of the exhaust fan. The air supply fan is disposed so as to be closer to the center of rotation of the air supply fan, and communicates with the exhaust air passage of the two-layer duct when the main body is viewed from the front toward the indoor side wall surface. The simultaneous supply / exhaust characterized in that the double-layer duct is provided to the main body at a position where an opening of the outdoor exhaust port is not included inside a suction port of the exhaust fan configured on the indoor side. Shape ventilation device. An outdoor air supply port and an outdoor air outlet that are formed adjacent to each other in communication with the air supply and exhaust air passages of a two-layer duct that forms an air supply and exhaust air passage by partitioning the inside of one duct. A main body having an exhaust port disposed on the indoor side, an air supply fan provided inside the main body for supplying air toward the indoor side, and an exhaust fan for exhausting to the outdoor side And an indoor air supply port provided in the main body so as to communicate with the outdoor air supply port via the air supply fan, and a communication with the outdoor exhaust port via the exhaust fan. A simultaneous supply / exhaust ventilation device including an indoor exhaust port provided in the main body, wherein a rotation axis of the supply fan and a rotation axis of the exhaust fan are perpendicular to an indoor side wall surface The air supply fan and the exhaust fan are connected to the indoor side wall The center of rotation of the air supply fan communicates with the air supply passage of the two-layer duct when the main body is viewed from the front toward the indoor side wall surface. An opening of the outdoor exhaust port that is disposed so as to be included in the opening of the air supply port and communicates with the exhaust air passage of the two-layer duct when the main body is viewed from the front toward the indoor side wall surface, The simultaneous supply / exhaust type ventilator characterized in that the two-layer duct is provided to the main body at a position not included in the inside of the suction port of the exhaust fan configured on the indoor side . A room having an outdoor air supply port and an outdoor air discharge port that are formed adjacent to each other by communicating with a supply air passage and an exhaust air passage formed in the two-layer duct by partitioning the inside of one duct. A main body disposed inside, an air supply fan provided inside the main body, having a suction port at a position facing the outdoor air supply port and supplying air toward the indoor side; and an outdoor side An exhaust fan for exhausting, an indoor air supply port provided in the main body so as to communicate with the outdoor air supply port via the air supply fan, and the outdoor side via the exhaust fan A simultaneous supply / exhaust ventilation device including an indoor exhaust port provided in the main body so as to communicate with an exhaust port, wherein a rotation shaft of the supply fan and a rotation shaft of the exhaust fan are provided on an indoor side wall surface The air supply fan and the exhaust fan so as to be perpendicular to the Arranged side by side in the direction along the indoor side wall surface, and when the main body is viewed from the front toward the indoor side wall surface, a part of the partition provided inside the two-layer duct is used for the air supply A simultaneous supply / exhaust type ventilator which is disposed so as to be included in the opening of the suction port of the fan. When the main body is viewed from the front toward the indoor side wall surface, from the partition part in a direction perpendicular to the partition part partitioned at the inner center of the two-layer duct to partition the supply air path and the exhaust air path. The two-layer duct is arranged so that a portion having the longest distance to the inner surface of the air supply air passage is included inside the intake port of the air supply fan provided at a position facing the outdoor air supply port. The simultaneous supply / exhaust ventilation device according to claim 3 , wherein a layer duct is provided on the main body. When the main body is viewed from the front toward the indoor side wall surface, a part of the opening of the outdoor exhaust port communicating with the exhaust air passage of the two-layer duct is provided at a position facing the outdoor air supply port. The simultaneous supply / exhaust type ventilator according to claim 3 , wherein the two-layer duct is provided in the main body so as to be included inside the suction port of the supply fan. An exhaust fan casing having a suction port and a discharge port in a shape covering the exhaust fan is provided, and the exhaust fan is disposed between the air supply fan located on the side of the exhaust fan and the indoor wall. The simultaneous supply / exhaust type ventilator according to claim 3 or 4 , further comprising an exhaust passage extending from a discharge port of the casing to an outdoor exhaust port. An exhaust fan casing having a suction port and a discharge port in a shape covering the exhaust fan is provided, an exhaust passage is formed from the discharge port of the exhaust fan casing to the outdoor exhaust port, and the exhaust passage is formed the hourly discharge type ventilator according to any one of claims 1 to 6, characterized in that the formation of the inclined portion inclined with respect to the indoor wall surface toward the exterior side exhaust port side walls. An exhaust fan casing having a suction port and a discharge port in a shape covering the exhaust fan is provided, and an exhaust passage extending from the discharge port of the exhaust fan casing to the outdoor exhaust port as a whole is formed as the outdoor exhaust port. It headed the hourly discharge type ventilator according to any one of claims 1 to 6, characterized in that formed so as to be inclined with respect to the room wall. An exhaust fan casing having a suction port and a discharge port in a shape covering the exhaust fan is provided, and in the exhaust passage from the discharge port of the exhaust fan casing to the outdoor exhaust port, the exhaust passage with respect to the discharge port The simultaneous supply / exhaust type ventilator according to claim 7 , wherein an inclination angle of the side wall is larger on the downstream side than on the upstream side. The simultaneous supply / exhaust ventilation device according to any one of claims 1 to 9 , wherein the exhaust fan is a centrifugal fan. The simultaneous supply / exhaust ventilation device according to any one of claims 1 to 9 , wherein the exhaust fan and the air supply fan are constituted by a centrifugal fan. The hourly discharge type ventilator according centrifugal fan in claim 10 or 11, characterized in that it constitutes a turbo fan. An exhaust fan casing having a suction port and a discharge port in a shape that covers the exhaust fan is provided, and the exhaust fan casing surrounds the outer shape of the exhaust fan and moves toward the discharge port on the downstream side. The simultaneous supply / exhaust type ventilator according to any one of claims 10 to 12 , further comprising a guide portion formed so as to increase a distance from an outer shape of the exhaust fan. The simultaneous supply / exhaust ventilation device according to any one of claims 1 to 13 , wherein the indoor air supply port and the indoor exhaust port are arranged diagonally with respect to the main body. The simultaneous supply / exhaust type ventilation device according to claim 14 , wherein the indoor side air supply port or the indoor side exhaust port is provided on a side surface of the main body. The rotational axis of the exhaust fan is such that the centrifugal discharge direction of the exhaust fan is parallel to the side wall on the air supply fan side that forms the exhaust passage from the exhaust port of the exhaust fan casing to the outdoor exhaust port. The simultaneous supply / exhaust type ventilator according to any one of claims 10 to 12 , characterized in that is inclined.

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