JP2006132884A - Ventilating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the appearance performance of a ventilating device, particularly the degree of design freedom of a front side corner, without impairing air blowing performance. <P>SOLUTION: The ventilating device is provided with an air supply ventilation flue 3; an exhaust ventilation flue 6; an air supply blower for forming a supply air flow in the air supply ventilation flue 3; an exhaust blower for forming an exhaust flow in the exhaust ventilation flue 6; and a heat exchanger for exchanging heat between the supply air flow and the exhaust flow. The air supply blower and the exhaust blower are mounted by connecting respective impellers to a rotating shaft of a common motor and constituted to house the impellers in respective fan casings. The air supply blower and the exhaust blower are constituted to arrange the motor on the front side of a body casing, and the respective impellers and the fan casings on the back face side, and to form an exhaust suction port on the motor side, and an air supply suction port on the anti-motor side. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  TECHNICAL FIELD The present invention relates to a ventilator that takes in outside air and exhausts indoor air while continuously exchanging heat with a heat exchanger.

  In a ventilator that takes in outside air and exhausts indoor air while continuously exchanging heat with a heat exchanger, if it is relatively small, the outdoor air intake port and the indoor air exhaust port are connected to the main body. Some have a partition wall, also called a two-layer pipe, connected to the outside through a duct connection port provided on the back side, and is connected to the outside by a duct that is piped through a wall. In addition, there exists a thing shown by patent document 1 as this kind of prior art.

JP-A-10-281524

  In this type of ventilator, the main body is attached to the middle of the wall surface of the room in order to communicate with the outside through a duct having a partition wall. For this reason, the motors of the air supply blower and the exhaust blower are often provided on the wall side (the back side of the main body) because of their large mass. In the case where the impeller of the air supply blower and the exhaust blower is rotated by a single biaxial motor, the motor is provided slightly closer to the front than the center line of the thickness of the main body. In any case, the fan casing is located on the front side of the main body. The fan casing has a scroll shape and has a large diameter and is bulky, and the design on the front side of the main body is limited by the fact that the fan casing is located on the front side. Even if it tried to improve the appearance performance, the fan casing was in the way, and it was difficult to achieve it without impairing the blowing performance.

  The present invention has been made in order to solve the above-described problems, and the object of the present invention is to increase the appearance performance, in particular, the degree of design freedom of the corner portion on the front side, without impairing the air blowing performance. It is to obtain a ventilation device, and to obtain a ventilation device capable of reducing pressure loss due to a motor.

  In order to solve the above-described problems, the present invention provides an air supply passage that connects the outside of a building and the room through an outdoor air inlet and an indoor outlet, and an exhaust that connects the room and the outside of the building through the indoor air inlet and the outdoor outlet. An air supply path that forms a supply airflow from the outdoor suction port to the indoor air outlet in the air supply passage, an exhaust air blower that forms an exhaust flow from the indoor air intake to the outdoor air outlet in the exhaust airflow path, For ventilators equipped with a heat exchanger that exchanges heat between the airflow that flows through the air supply and exhaust ventilation paths, the outdoor suction port and the outdoor air outlet that are formed on the back of the main body are opened with a partition wall. The supply air blower and the exhaust blower are attached to the rotation shaft of a common motor by connecting the respective impellers, and each fan casing includes the impeller. Blower and exhaust blower, motor The front side of the body, each impeller and its fan casing is arranged on the rear side, and a suction port of the exhaust to the motor side, to employ a means for the inlet of the air supply to the anti-motor side.

  According to the present invention, since a motor having a smaller diameter than the fan casing is located on the front side of the main body, the design of the part can be freely configured, such as making the corner part on the front side of the main body a chamfered shape, The appearance performance can be improved without impairing the blowing performance.

  The ventilator of the present invention includes an air supply passage that connects the outside of the building and the room through the outdoor suction port and the indoor outlet, an exhaust ventilation passage that connects the room and the outside of the building through the indoor suction port and the outdoor outlet, The main body box has an air supply blower that forms a supply airflow from the outdoor inlet to the indoor outlet in the air supply passage, and an exhaust fan that forms an exhaust flow from the indoor inlet to the outdoor outlet in the exhaust passage. Built-in outdoor suction port and outdoor blower outlet formed on the back plate that closes the back of the main body box are divided into two openings by the partition wall, and heat exchange is performed between the airflow that flows through the air supply and exhaust airflow paths. It is a ventilator that incorporates a heat exchanger. The supply air blower and the exhaust air blower are configured such that each impeller is connected to the rotation shaft of a common motor and the impeller is included in each fan casing, and the exhaust inlet is on the motor side. The air intake is on the non-motor side. The air supply blower and the exhaust blower are attached to one side of the main body box with their motors on the front side of the main body and each impeller and its fan casing on the back side. The fan casing, the air supply ventilation path and the exhaust ventilation path are constituted by a structure made of foamed resin, and this structure is housed in a container-like main body box having a decorative panel constituting the front of the ventilation device, and the rear casing. The back is closed.

  The mounting position of the air supply fan and the exhaust fan will be described in more detail. To reduce the thickness in the front / back direction, the center line of the fan casing thickness is closer to the back side than the center line of the main body box thickness. ing. In this ventilator, since a motor having a diameter much smaller than that of the fan casing is located on the front side of the main body box, the upper and lower corner portions on the front side of the main body box are formed in an R-shaped chamfered shape. The appearance performance can be improved without adopting an unreasonable configuration that impedes the air blowing performance, such as changing the shape of a part of the fan casing. It is also possible to arrange the indoor suction port and the indoor air outlet at a corner portion having a chamfered shape, for example, which is not directly visible from the front of the decorative panel constituting the design surface.

Embodiment 1 FIG.
FIG. 1 is a front view showing a ventilation device of the present embodiment with a decorative panel removed, FIG. 2 is a cross-sectional plan view of the ventilation device, and FIG. 3 is a longitudinal side view of the ventilation device. The ventilation device of the present embodiment includes an air supply passage 3 that connects the outside of the building and the room through the outdoor air inlet 1 and the indoor air outlet 2, and the indoor air inlet 4 and the outdoor air outlet 5 that connect the room and the outside of the building. The exhaust ventilation path 6 connected through the main body box 7 is configured as an integral or divided structure of foamed resin housed in the main body box 7. The main body box 7 is formed in a container shape, and the front surface thereof is constituted by a decorative panel 8 having openings that are substantially the indoor air outlet 2 and the indoor air inlet 4. The back surface of the main body box 7 is closed by a back casing 9 having an opening at a substantially central lower portion.

  The decorative panel 8 constitutes the main body of the design surface of the ventilator and is the core of the appearance performance, and has a shape as shown in FIG. 3, for example. That is, the upper corner portion 10 has a chamfered shape, and the front surface has a gentle curved surface and continues to the lower corner portion. And the indoor blower outlet 2 and the indoor suction opening 4 are each provided in the right and left of the upper corner part 10 which cannot be directly visually recognized from the front. The design of the decorative panel 8 is a result of an increased degree of freedom due to the arrangement of the air supply blower 11 and the exhaust blower 12 to be described later on the main body box 7, and other designs can be taken.

  The outdoor air inlet 1 of the air supply ventilation path 3 and the outdoor air outlet 5 of the exhaust ventilation path 6 are vertically separated by a partition wall with an opening opened substantially at the lower center of the rear casing 9 constituting the back surface of the main body box 7. It is divided and formed. An air supply blower 11 that forms a supply air flow from the outdoor suction port 1 to the indoor outlet 2 is formed in the supply air passage 3, and an exhaust flow that is directed from the indoor suction port 4 to the outdoor outlet 5 is formed in the exhaust ventilation passage 6. The exhaust blower 12 is provided near one side (right side in FIG. 1) of the main body box 7. A laminated heat exchanger 13 that exchanges heat between the airflows flowing through the air supply passage 3 and the exhaust passage 6 is provided close to one side (left side in FIG. 1) of the main body box 7.

  As shown in FIG. 2 and FIG. 3, the supply air blower 11 and the exhaust blower 12 are each attached to a rotating shaft 15 of a common motor 14 with each impeller 16 connected thereto, and each fan casing 17 formed in a structure. The impeller 16 is included, and the exhaust suction port is on the motor side and the supply air suction port is on the counter-motor side. The air supply blower 11 and the exhaust air blower 12 are provided with the motor 14 on the front side of the main body box 7 and each impeller 16 and its fan casing 17 arranged on the back side. The suction port 17 faces the back, and the suction port of the fan casing 17 of the exhaust blower 12 faces the front. In detail, as shown in FIG. 2, the supply air blower 11 and the exhaust blower 12 have a central line of the thickness of the fan casing 17 on one side of the main body box 7 in order to make the thickness in the front and back directions smaller. It is closer to the back than the center line of the thickness of the box 7.

  In this ventilation device, the motor 14 having a diameter much smaller than that of the fan casing 17 is located on the front side of the main body box 7, so that the upper and lower corner portions on the front side of the main body box 7 are formed in an R-shaped chamfer shape. The design of the part can be freely configured, and the appearance performance can be improved without adopting an unreasonable configuration that impedes the air blowing performance, such as changing the shape of a part of the fan casing 17. The indoor inlet 4 and the indoor outlet 2 can be disposed in the upper corner portion 10 that cannot be directly seen from the front of the decorative panel 8 constituting the design surface. A motor 14 is located at the suction port of the fan casing 17 of the exhaust blower 12 and acts as a pressure loss on the exhaust flow from the indoor suction port 4 of the decorative panel 8. The position and size of the indoor suction port 4 are selected. Since there is a degree of freedom, it is possible to design with a small pressure loss. With respect to the air supply blower 11 on the back side, there is no motor 14 at the suction port of the fan casing 17, and the supply air ventilation path 3 that does not hinder the suction performance can be configured.

  In this ventilator, indoor air sucked by the exhaust blower 12 from the indoor suction port 4 flows laterally in the front side of the main body box 7, passes through one fluid passage of the heat exchanger 13, and the main body box. 7 toward the lower part on the back side of the air, and exhausted from the outdoor outlet 5 to the outside. On the other hand, outdoor air sucked by the air supply blower 11 from the outdoor suction port 1 at the lower back of the main body box 7 passes through the air supply passage 3 formed on the back side of the main body box 7, and the heat exchanger 13. The other fluid passage is blown into the room from the front indoor outlet 2 and the heat exchanger 13 performs continuous heat exchange between the supply and exhaust flows in the middle of the path.

It is a front view which removes and shows the decorative panel of a ventilator. (Embodiment 1) It is a cross-sectional top view of a ventilation apparatus. (Embodiment 1) It is a vertical side view of a ventilation apparatus. (Embodiment 1)

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Outdoor suction port, 2 Indoor blower outlet, 3 Air supply ventilation path, 4 Indoor suction port, 5 Outdoor blower outlet, 6 Exhaust ventilation path, 7 Main body box, 8 Cosmetic panel, 11 Air supply blower, 12 Exhaust blower, 13 Heat exchanger, 14 motor, 15 rotating shaft, 16 impeller, 17 fan casing.

Claims (2)

  An air supply passage that connects the exterior and interior of the building through an outdoor air inlet and an indoor outlet, an exhaust air passage that connects the interior and exterior of the building through an indoor air inlet and an outdoor air outlet, and the air supply passage An air supply blower that forms a supply airflow from the outdoor air inlet to the indoor air outlet, an exhaust air blower that forms an exhaust air flow from the indoor air inlet to the outdoor air outlet in the exhaust air passage, and the air supply vent A ventilator provided in a main body with a heat exchanger for exchanging heat between a passage and an airflow flowing through the exhaust ventilation path, and partitioning the outdoor inlet and the outdoor outlet formed on the back of the main body A structure in which an opening is divided into two by a wall, and the air supply fan and the exhaust air blower are attached by connecting each impeller to a rotating shaft of a common motor, and each fan casing includes the impeller. And with this air supply And the exhaust blower, with the motor on the front side of the main body, the impellers and the fan casing on the back side, the exhaust suction port on the motor side, and the intake suction port on the non-motor side Ventilator.   The ventilator according to claim 1, wherein the air supply fan and the exhaust air fan are provided close to one side of the main body, and the center line of the thickness of the fan casing is closer to the back side than the center line of the thickness of the main body. .

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