JP4617967B2 - Ventilation equipment - Google Patents

Description

  The present invention relates to a ventilator that ventilates a house by forcibly exhausting indoor air and simultaneously taking in outside air into the room and supplying air.

  Conventionally, a ventilator that ventilates a plurality of rooms by installing a main body in a ceiling is known as an example of this type of ventilator (see, for example, Patent Document 1).

  Hereinafter, the ventilator will be described with reference to FIGS. 14 and 15.

  As shown in the figure, an exhaust air intake port 101 is provided on the lower surface, and a plurality of air supply ports 102 communicating with a plurality of rooms are provided on one side surface, and an exhaust air and air supply ventilation port 103 communicating with the outdoors are provided on the other side surface. A box-shaped main body 104 is formed. Inside the main body 104, a fan motor 107 including an exhaust fan 105 and an air supply fan 106, an exhaust path 108, and an air supply path 109 are formed. And a heat exchange element 110 that recovers exhaust heat. An inspection port 112 is formed in the ceiling 111 corresponding to the exhaust air intake 101 of the main body 104, a louver 113 is provided in the inspection port 112, and a filter 114 is provided on the side where the outside air is supplied to the heat exchange element 110. A filter 115 is also provided on the exhaust air intake 101 side. In this ventilator, a main body 104 is disposed on a ceiling 116, a duct 117 communicating with the outdoors is connected to the ventilation port 103, and a plurality of ducts 118 are connected to the air supply port 102 so as to communicate with each room. .

In the above configuration, when the fan motor 107 is operated, air containing indoor hot air is taken in from the exhaust air intake 101 by the exhaust fan 105, and heat is stored when passing through the heat exchange element 110. The outside air exhausted to the outside through the exhaust flow path 119 to the outside and supplied from the ventilation port 103 by the air supply fan 106 collects the heat stored in the heat exchange element 110 when passing through the heat exchange element 110. The fresh air is taken into each room through the air supply passage 120 leading to the plurality of air supply ports 102.
Japanese Patent No. 3456880 ([0018] to [0021], FIG. 1 and FIG. 3)

  In such a conventional ventilator, it is indispensable to periodically inspect and care for the filter 114 that filters the dirt of the supply air and the filter 115 that filters the dirt of the exhaust air. Since the mouth 112 is on the ceiling 111, it is necessary to remove the louver 113 in an unstable posture on a stepladder or the like, and there is a problem that it is not easy for elderly people. In addition, the exhaust filter 115 must be cleaned frequently with a vacuum cleaner, and since it is necessary to remove the filter 115 from the main body 104 one by one in order to check the degree of contamination, the work is much more difficult. Forgetting to clean, the filter 115 may be used in a dirty state. If such a state continues, the exhaust air volume is extremely reduced, and in the winter, the heat exchange efficiency in the heat exchange element 110 is lowered, the temperature around the air supply passage 119 of the main body 104 is lowered, and the outline of the main body 104 is There is a risk of condensation. Therefore, care of the filter 115 and the like is important, and it is required to facilitate inspection and care work.

  Further, when the main body 104 is installed on the ceiling 116 and the connection direction of the ducts 117 and 118 does not coincide with the piping direction, the duct may not be easily routed. In such a case, bending stress is applied to the connection ports of the ducts 117 and 118, and the connection between the air supply port 102 and the ventilation port 103 and the ducts 117 and 118 may be easily disconnected. In the unlikely event that the air supply port 102 or the air vent 103 is disconnected from the ducts 117 and 118 at the time of installation, and there is a problem such as air leakage, it is difficult to repair without removing the ceiling material. is there. In addition, when a problem such as dew condensation occurs on the outer shell of the main body 104 as described above, the ceiling 116 may be wetted. Therefore, it has been required to facilitate duct connection at the time of installing the main body, to easily deal with troubles at the time of installing the main body, and to prevent the periphery of the attachment portion from getting wet even when the main body is condensed.

  The present invention solves such a conventional problem, and it is possible to easily check the necessity of cleaning, check the filter, etc., and perform maintenance of the duct and the main body. The purpose is to provide a ventilator that is easy to handle in the unlikely event that it does not cause problems even when the body is condensed.

  In order to achieve the above object, the ventilator of the present invention has an outside air inlet port that communicates with the outside via a duct, an outside air outlet port that communicates with an air supply port that is also opened indoors via the duct, and the outside air inlet. An air supply passage formed by connecting the opening and the outside air outlet through an air supply blower, an indoor air intake port for directly taking in indoor air, and an outside through a duct to discharge indoor air An exhaust passage formed by communicating an indoor air outlet, the indoor air inlet and the indoor air outlet via an exhaust fan, and the outside air inlet, the outside air outlet, and the room air The air outlet is provided on the upper surface of the main body, the indoor air suction port is provided on the upper surface of the main body, and the surface other than the back surface, and the main body is installed on the indoor wall surface.

  By this means, the main body is installed indoors, so it is easy to inspect and clean the main body, and since the outside air inlet and the outside air outlet, which are the connection ports of the duct, and the indoor air outlet are all on the top surface of the main body, Since all the pipes are straight upward from the main body, duct construction is easy, and it is possible to obtain a ventilation device that can be easily repaired even if the duct connection is defective.

  Another means is provided with a heat exchange element for exchanging heat between the outside air and room air at a position where the air supply passage and the exhaust passage intersect.

  By this means, heat can be recovered from the exhaust air from the room, and a ventilation device that can save energy for heating and cooling the room is obtained.

  Another means is that a heat exchange element is provided in the lower part of the main body, and an air supply fan, an exhaust fan, and an electrical component are provided above the heat exchange element.

  By this means, the heat exchange element is easily accessible, and the electrical component is provided above it, so that the vicinity of the heat exchange element can be easily cleaned, and the internal dew condensation water component that tends to occur near the heat exchange element Ventilation device that can prevent intrusion into the water is obtained.

  Another means is that an exhaust fan and an exhaust casing are attached to the rear rotation shaft of the motor, which is attached to a partition plate that divides the internal space of the main body into front and rear, and the rotation axis direction is front and rear. An outside air introduction chamber that includes an air casing and communicates the outside air inflow surface of the heat exchange element stacked in the left-right direction and the outside air suction port is provided in parallel with the exhaust casing.

  By this means, the air flow path inside the main body can be efficiently arranged, and a ventilation device having a compact main body can be obtained.

  Another means is that a toilet air suction port that is in direct communication with the suction side of the air supply fan without passing through the heat exchange element is provided on the upper surface of the main body.

  By this means, exhaust from the toilet can be performed without passing through the heat exchange element, and a ventilation device is obtained in which the odor of the toilet does not leak into the air supply path due to leakage inside the main body.

  Another means is provided with an openable / closable inspection door at the lower front portion of the main body.

  By this means, the front in the vicinity of the main body heat exchange element is opened at a position where it can be easily reached, so that a ventilation device that can be easily inspected and maintained can be obtained.

  Another means is that the inspection door is provided with an indoor air inlet provided with an exhaust filter.

  By this means, the indoor air can be efficiently introduced into the heat exchange element, and the exhaust filter mounting position is located at the lower part of the main body, so that a ventilation device that can be easily maintained can be obtained.

  Another means is that an exhaust filter provided in the indoor air inlet is detachably attached from the front side.

By this means, it is possible to check the dirt of the exhaust filter while attached to the main body,
Since it can be attached and detached without opening the inspection door, it is possible to obtain a ventilation device that can easily check the necessity of cleaning and maintain the filter.

  Another means is that a sound insulating wall formed in a hood shape is provided on the back side of the indoor air inlet.

  By this means, since the driving sound generated inside the main body and leaking from the indoor air suction port is sound-insulated, a ventilation device capable of reducing the driving sound is obtained.

  In another means, a drain pan is integrally provided on the lower surface of the outer shell of the main body.

  By this means, in the winter season, in addition to the generation of condensed water inside the main unit, even if condensation occurs on the outer surface of the main unit, the condensed water can be collected by the drain pan, and the indoor floor surface is wetted. A ventilation device that can prevent the above is obtained.

  Another means is that an air supply filter housed in a filter frame is provided relative to the outside air inflow surface of the heat exchange element, and the filter frame can be attached and detached while rotating in the direction of the inspection door on the front side.

  By this means, the air supply filter can be easily removed, and a ventilation device that can be easily maintained is obtained.

  In another means, an insect net is provided by insert molding or welding to a filter frame opening located on the upstream side of the filter.

  By this means, when fine flying insects in the outside air enter the main body due to the inflow of the supply air, the insects can be collected by the insect-proof net, so the air is blown from the outside air outlet through the duct. Therefore, it is possible to obtain a ventilation device that can prevent insects from entering the room.

  In addition, another means is provided with a concave insect receiving tray for receiving insect dead bodies, dust and the like on the lower surface of the air supply passage in the main body, and is detachable in the direction of the inspection door.

By this means, insect dead bodies and dust that fell from the insect net are collected in the insect tray,
A ventilator that can be easily disposed of is obtained.

  According to the present invention, since the main body is installed indoors, the inspection and maintenance of the main body is easy, and the outside air inlet and the outside air outlet, which are the connection ports of the duct, are all on the upper surface of the main body. The duct pipes are all straight up from the main body, making duct construction easy and providing a ventilator that can be easily repaired even if the duct connection is defective.

  Further, it is possible to provide a ventilator that can recover heat from the exhaust air from the room and can save energy for heating and cooling the room.

  In addition, since the heat exchange element is easily accessible and the electrical component is provided above it, it is easy to clean the vicinity of the heat exchange element, and internal condensation water that tends to occur near the heat exchange element A ventilation device that can also prevent intrusion can be provided.

  Moreover, the air flow path inside a main body can be arrange | positioned efficiently, and the ventilation apparatus which has a compact main body can be provided.

  Further, exhaust from the toilet can be performed without using a heat exchange element, and a ventilation device can be provided in which the odor of the toilet does not leak into the supply air flow path due to leakage inside the main body.

  Further, since the front of the main body heat exchange element is opened at a position where it can be easily reached, it is possible to provide a ventilation device that can be easily inspected and maintained.

  Moreover, since the inflow of indoor air to the heat exchange element is efficiently performed and the attachment position of the exhaust filter is located at the lower part of the main body, a ventilation device that can be easily maintained can be provided.

  In addition, the exhaust filter can be checked for contamination while it is attached to the main body, and it can be attached and detached without opening the inspection door, providing a ventilation device that makes it easy to check and maintain the filter. it can.

  In addition, since the operation sound generated inside the main body and leaking from the indoor air inlet is sound-insulated, a ventilation device capable of reducing the operation sound can be provided.

  In addition, in the winter season, in addition to the generation of dew condensation inside the main unit, even if dew condensation occurs on the outer surface of the main unit, the dew tray can catch the dew condensation water, preventing the floor surface from getting wet. Can provide a ventilation device.

  In addition, it is possible to provide a ventilation device that facilitates the removal of the air supply filter and allows easy maintenance.

  In addition, it is possible to provide a ventilator that can collect insect dead bodies and dust that fall from the insect-proof net in an insect receiving tray and easily dispose of them.

The invention of claim 1, wherein the present invention, the outside air inlet port which communicates with the outdoor through the duct, and the outside air outlet port communicating with air inlet which opens into the room again through the duct, the outside air inlet and the outside air An air supply passage formed by communicating with an air outlet via an air supply blower, an indoor air intake port that directly takes in indoor air, and an indoor air that communicates with the outdoors via a duct and exhausts indoor air The main body includes an exhaust passage formed by communicating the air outlet, the indoor air inlet and the indoor air outlet via an exhaust fan, and the air supply passage and the exhaust passage intersect with each other. A heat exchange element for exchanging heat between the outside air and room air, the outside air inlet and the outside air outlet, and the room air outlet on the top surface of the main body, and the room air inlet on the top surface of the main body and a surface other than the back surface. It is a ventilation device that is installed on the wall surface of the room The condensed water prone said heat exchange elements at the bottom in said main body is provided, the air supply blower thereabove, said exhaust blower, and by providing the electrical unit, disposed upstream of the heat exchange element The supplied air filter and exhaust filter can be disposed at a lower position than the heat exchange element, that is, at the lower part of the main body, which is easy to reach, so that the maintenance work is facilitated. In addition, since heat is exchanged between the outside air and room air in the heat exchange element part, condensate water may be generated depending on the conditions. However, since the electric part is provided above the heat exchange element, the electric part of the dew condensation water is provided. It has the effect of preventing intrusion into the body.

Further, the invention according to claim 2 , the exhaust fan and the exhaust casing are provided on the rear rotating shaft of the motor attached to the partition plate that divides the inner space of the main body into the front and rear and the rotating shaft direction is positioned front and rear, and the air is supplied to the front rotating shaft By providing an outside air introduction chamber having a fan and an air supply casing and communicating the outside air inflow surface and outside air suction port of the heat exchange elements stacked in the left-right direction in parallel with the exhaust casing, the rear side of the partition plate is connected to the exhaust casing. By using the exhaust flow path and the outside air introduction flow path provided, and the front side of the partition plate as an air supply flow path for blowing outside air into the room, the air flow path inside the main body can be efficiently arranged, The main body can be made compact.

According to a third aspect of the present invention, there is provided a toilet air suction port on the upper surface of the main body, which is in direct communication with the suction side of the air supply fan without passing through the heat exchange element. In general, exhaust air and supply air due to leakage in the main body are likely to occur around the heat exchange element mounting part, but toilet air has flowed into the exhaust flow path in the main body. After that, since the air is immediately discharged from the indoor air outlet through the duct, the toilet air can be exhausted without leaking into the air supply path.

Further, the invention according to claim 4 is provided with an inspection door that can be opened and closed at the lower front portion of the main body, so that the front of the main body heat exchange element is opened at an easily accessible position. It is possible to directly check the state of this, and it has the effect of facilitating inspection and care.

According to the fifth aspect of the present invention, the indoor air intake port provided with the exhaust filter is provided in the inspection door, so that the indoor air is taken into the main body from the indoor air intake port, and the indoor space of the heat exchange element in the immediate vicinity is taken. An efficient flow path that flows to the air inflow surface can be formed. Further, the exhaust filter is attached at the lower part of the main body, which is easy to reach, so that the exhaust filter can be easily maintained.

In the invention according to claim 6, the exhaust filter provided in the indoor air suction port is detachably attached from the front side, so that the dirt state of the exhaust filter can be visually observed from the outside while being attached to the main body. Yes, and you can easily check if care is required. Further, when the exhaust filter is cleaned, the exhaust filter can be attached and detached without opening the inspection door, so that the exhaust filter can be easily maintained.

Further, the invention of claim 7 is provided with a sound insulation wall formed in the shape of a hood on the back side of the indoor air suction port, so that the motor sound and the ventilation sound generated inside the main body are blocked by the sound insulation wall so that the sound from the indoor air suction port This has the effect of making it difficult to reduce driving noise.

Further, the invention according to claim 8 is provided with a drain tray in which the receiving portion protrudes from the front, rear, left, and right peripheral surfaces on the lower surface of the outer shell of the main body so that the dew condensation water generated in the main body is internally contained in winter. Even if condensation occurs on the outer surface of the main body, it is possible to catch the condensed water that has been dripped with the drain pan, and to prevent the floor surface under the main body from getting wet. .

According to the ninth aspect of the present invention, the air supply filter housed in the filter frame is provided relative to the outside air inflow surface of the heat exchange element, and the filter frame can be attached and detached while rotating in the direction of the inspection door on the front side. The air supply filter can be detached from the front at the lower position of the lower body, which is easy to reach by hand, so that the attachment / detachment work is facilitated and the air supply filter can be easily maintained.

According to the invention of claim 10 , the insect net is insert-molded or welded to the filter frame opening located on the upstream side of the filter, so that the outside air can fly finely on the supplied air. When insects enter the main body from the outside air intake port, they cannot pass through the insect net, so the insects cannot travel further through the ventilation path. It has the effect that it can prevent entering.

Further, the invention of claim 11 is provided with a concave insect receiving tray for receiving insect dead bodies, dust and the like on the lower surface of the air supply passage in the main body, and is detachable in the direction of the inspection door. , Dead insect dead bodies and dust can be collected in the insect tray, open the inspection door and pull it forward in the position of the hand, it can be easily disposed of Have.

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

(Embodiment 1)
As shown in FIGS. 1 to 3, the ventilator of the present invention is provided with an outdoor air inlet 2, an outdoor air outlet 3, and an indoor air outlet 4 on the upper surface of a box-shaped main body 1, and an upper portion is provided in the main body 1. It has a partition plate 5 divided into front and rear and a biaxial motor 6 attached to the partition plate 5, and an air supply fan 7 that is rotationally driven by the motor 6 in the front space and a supply portion in which the blowout portion communicates with the outside air outlet 3. An air supply space 9 is formed by arranging an air casing 8. On the other hand, an exhaust fan 10 that is rotationally driven by a motor 6 and an exhaust casing 11 whose blowout portion communicates with the indoor air outlet 4 are arranged in the rear space to form a first exhaust space 12, and the first Outside air introduction ducts 13 penetrating through the exhaust space 12 are arranged side by side. A heat exchange element 14 in which heat transfer plates are laminated in the left-right direction is disposed in the lower part of the main body, and one surface thereof opens to the air supply space 9 as an outside air outflow surface 15, and the indoor air outflow surface 16 of the adjacent surface orthogonal thereto. Opens into the first exhaust space 12. The lower end of the outside air introduction chamber 13 is connected to the opposite outside air inflow surface 17 communicating with the outside air outflow surface 15 of the heat exchange element 14, and the upper end is connected to the outside air inlet 2 to form an air supply flow path. . An opposite indoor air inflow surface 18 communicating with the indoor air outflow surface 16 of the heat exchange element 14 opens into a second exhaust space 19 that occupies the lower front in the main body 1, and opens into the second exhaust space 19. The indoor air suction port 20 is provided on the front surface of the outer shell of the main body 1. In addition, an electrical box 21 containing a power source connection portion, a motor driving capacitor, and the like is disposed on the upper front surface of the partition plate 5. The main body 1 is installed on a wall surface 22 such as an indoor storage room or a washroom, and the outside air inlet 2 and the outside air outlet 3 are respectively connected via an outside air suction duct 24 and an exhaust duct 25 disposed in the ceiling 23. It communicates with the outdoors 26. In addition, the indoor air outlet 4 communicates with a plurality of living rooms through an air supply primary duct 27, a distributor 28, and an air supply secondary duct 29 that are also disposed in the ceiling 23.

  When the ventilator configured as described above is operated, dirty air in a room such as a storage room in which the main body 1 is installed is taken into the second exhaust space 19 in the main body 1 from the indoor air inlet 20 by the suction of the exhaust fan 10, After flowing into the first exhaust space 12 through the exchange element 14, the air is pressurized by the exhaust fan 10 and the exhaust casing 11, and is discharged from the indoor air outlet 4 to the outdoors 26 through the exhaust duct 25. On the other hand, fresh air outside 26 is taken into the main body 1 from the outside air inlet 2 through the outside air suction duct 24 by the suction of the air supply fan 7, and passes through the heat exchange element 14 led from the inside of the outside air introduction chamber 13. After flowing into the air supply space 9 and being pressurized by the air supply fan 7 and the air supply casing 8, a plurality of air is supplied from the outside air outlet 3 through the air supply primary duct 27, the distributor 28, and the air supply secondary duct 29. Be blown out into the room.

  In the above configuration, the outside air suction duct 24, the exhaust duct 25, and the air supply primary duct 27 are all connected at the upper surface of the main body 1 and drawn straight into the ceiling 23, so that no bending stress is applied to the main body connecting portion of the duct. Duct connection such as taping can be made in the state, and construction becomes easy. Even after the construction, the connection strength is insufficient, and even if a problem such as air leakage occurs at the connection between the main body 1 and the duct, the connection can be easily reworked from the indoor side.

  In the heat exchange element 14, the outside air and the room air cross each other through a plurality of stacked heat transfer plates, and a part of the heat in the room air exhausted to the outdoors 26 is supplied to the living room side. Moved to and collected. Accordingly, it is possible to reduce the discharge loss due to the ventilation of energy when the room is air-conditioned.

  In addition, since the main body 1 is installed on the wall surface 22 in the room, a sufficient space for cleaning the main body can be secured, and the heat exchange element 14 can be disposed even in the vicinity of the heat exchange element 14. Since it is in a low position of the main body 1, it is easy to reach the hand, and maintenance work is facilitated.

  In addition, the electrical box 21 is disposed above the heat exchange element 14 in which condensed water is likely to be generated, so that an unsafe state such as the penetration of condensed water into the electrical box 21 can be avoided.

  In addition, the components such as the air supply fan 7, the exhaust fan 10, the motor 6, and the heat exchange element 14 are efficiently arranged in the main body 1, and the shortest distance is realized in both the air supply flow path and the exhaust flow path. Since there is no waste in the flow, the main body 1 can be made compact.

(Embodiment 2)
4 and 5 are different from the first embodiment in that a toilet air inlet 30 is added to the upper surface of the main body 1A. 4 and 5, the same components as those in FIGS. 1, 2, and 3 are denoted by the same reference numerals, and the description thereof is omitted. The toilet air inlet 30 opens into the first exhaust space 12 and communicates with the inside of the toilet via a toilet exhaust duct 31.

  In the above configuration, the air containing the odor in the toilet is directly taken into the first exhaust space 12 in the main body 1 </ b> A through the toilet exhaust duct 31 by the suction of the exhaust fan 10 when the ventilation device is operated, and the exhaust fan 10 and the exhaust casing 11. Then, the air is discharged to the outdoors 26 through an exhaust duct 25 connected to the indoor air outlet 4. In this way, the air in the toilet is exhausted without passing through the heat exchange element 14, and the toilet air inlet 30 is above the exhaust fan 10, and the heat exchange element 14 is below the opposite side Therefore, the air from the toilet does not approach the vicinity of the heat exchange element 14 where the air in the exhaust passage is most likely to leak into the air supply passage. Therefore, the toilet can be exhausted in a state where there is no fear that the odor of the toilet leaks into the air supply channel and flows back into the living room.

(Embodiment 3)
FIG. 6 shows the third embodiment.

  6, the same components as those in FIG. 1 are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIG. 6, the front surface of the main body 1 </ b> B includes a decorative panel 32 fixed to the main body 1 </ b> B, and a lower portion of the decorative panel 32 is opposed to the indoor air inflow surface 18 of the heat exchange element 14. An inspection door 33 that can be detachably opened and closed is provided at a portion that forms the front surface of the exhaust space, and an indoor air suction port 20 </ b> A including an exhaust filter 34 is opened in the inspection door 33.

  Since the indoor air contains a lot of dirt such as dust generated in the room, the indoor air inflow surface 18 of the heat exchange element 14 is particularly dirty and needs to be regularly cleaned and exhausted at the upstream part. It is necessary to periodically clean the exhaust filter 34 provided in order to reduce dirt in the flow path as much as possible. In such a situation, in the above configuration, the front of the indoor air inflow surface 18 of the heat exchange element 14 is opened at a low position, so that the heat exchange element 14 can be easily checked for contamination and can be cleaned by a vacuum cleaner or the like. It can be done easily. Further, since the exhaust filter 34 is provided at a low position, cleaning becomes easy.

(Embodiment 4)
As shown in FIG. 7, the exhaust filter 34A is formed integrally with a frame body 36 provided with a plurality of protruding claws 35, and a plurality of slits 37 are provided around the opening of the indoor air inlet 20B of the inspection door 33A. The exhaust filter 34A is detachably attached to the inspection door 33A by fitting the pawl 35 and the slit 37 from the front.

  In the above configuration, since the exhaust filter 34A is provided on the front surface of the inspection door 33A, the dirt of the exhaust filter 34A can be visually confirmed in the attached state, and the time for cleaning the exhaust filter 34A can be easily determined. Further, since the exhaust filter 34A is detachable from the front surface of the inspection door 33A, it can be easily removed and cleaned without opening the inspection door 33A, and maintenance is facilitated.

(Embodiment 5)
8 and 9 show the fifth embodiment.

  8 and 9, the same reference numerals are used for the same components as in FIGS. 1 and 2, and the description thereof is omitted.

  As shown in FIGS. 8 and 9, a hood-shaped sound insulating wall 39 having a ventilation opening 38 in the lower portion is integrated with the inspection door 33B on the back surface of the indoor air inlet 20C opened in the inspection door 33B in the lower front portion of the main body 1C. To form.

  In the above configuration, the hood shape is such that the ventilation noise in the heat exchange element 14, the wind noise of the exhaust fan 10, and the energization noise of the motor 6 leak from the indoor air inlet 20C directly to the outside of the main body 1C through the heat exchange element 14. The sound insulation wall 39 is blocked and leaks around the ventilation opening 38 that opens in the opposite direction of the heat exchange element, so that the leakage of the operation sound from the indoor air inlet 20C can be attenuated. The driving noise can be lowered.

(Embodiment 6)
FIG. 10 shows the sixth embodiment.

  10, the same components as those in FIGS. 1, 2, 6, and 7 are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIG. 10, the outer lower surface of the main body 1 </ b> D is formed as an upward concave drain receiving tray 40, and the receiving portions are protruded from the peripheral surfaces of the main body 1 </ b> D in the front, rear, left and right directions.

  Condensation inside the main body, especially in the exhaust path in the winter, and condensation on the outer surface of the main body 1D, especially on the outer surface of the main body 1D near the air supply system in the winter, is between the air supply path and the exhaust path. In addition, consideration is given to avoid condensation as much as possible by providing a heat insulating material between the air supply path and the outer shell of the main body 1D. However, in the unlikely event that condensation occurs due to insufficient heat insulation, etc., wet the floor of the installation location. End up. However, in the above configuration, all the condensed water generated should be received by the drain pan, so that the floor surface and the like are not wetted.

(Embodiment 7)
11 and 12 show the seventh embodiment.

  11 and 12, the same components as those in FIGS. 1, 2, and 6 are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIGS. 11 and 12, an air supply filter 42 detachably housed in the filter frame 41 is provided opposite to the outside air inflow surface 17 of the heat exchange element 14. A guide surface 44 formed integrally with the heat exchange element frame 43 is provided on the inner wall side of the resin heat exchange element frame 43 that holds the heat exchange element 14 on the left and right and is installed at a predetermined position. The filter frame is positioned between the surface 44 and the outside air inflow surface 17 of the heat exchange element 14, and the air supply filter 42 rotates together with the filter frame 41 along the guide surface 44 that is gently curved in a concave shape. It can be removed in the direction of the inspection door 33A. The filter frame 41 is provided with an insect net 45 of about 40 mesh by insert molding or the like on the upstream side of the air supply filter 42.

  In the above configuration, the air supply filter 42 opens the inspection door 33A and can be removed from the lower part where the hand of the main body 1B can be easily moved in the forward direction, so that it can be easily attached and detached, and easy to clean. is there. In addition, the insect-repellent net 45 upstream of the air supply filter 42 can collect fine flying insects that enter from the outside along the flow of the air supply air. Even if a gap is formed between the filter frame 41 due to size variation or the like, insects can be reliably prevented from entering the room through the gap.

(Embodiment 8)
FIG. 13 shows an eighth embodiment.

  In FIG. 13, the same components as those in FIG. 11 are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIG. 13, a concave shape is formed in the upward direction on the lower surface of the air supply passage below the insect repellent net 45 of the air supply filter frame 41, and an insect receiving tray 46 larger than the lower projection surface of the insect repellent net 45 is provided. The tray 46 can be pulled out and removed as it is in the direction of the inspection door 33A with the filter frame 41 removed.

  In the above configuration, the insects captured by the insect net 45 become dead bodies and fall into the insect receiving tray 46 mixed with large dust. Accordingly, when the inspection door 33A is opened and the air supply filter is cleaned, dead bodies such as insects that have been drawn out from the insect receiving tray 46 as they are can be disposed of at the same time inside the main body 1B. The maintenance work can be easily performed.

  The maintenance parts such as the filter and insect tray on the main body, and the configuration of the air supply and exhaust passages can be applied to the use of air conditioners with a ventilation function, and are useful for facilitating maintenance work. .

Sectional perspective view which shows the main body of the ventilation apparatus of Embodiment 1 of this invention Rear perspective view of the ventilator body System schematic of the ventilator Main unit rear perspective view of a ventilator according to Embodiment 2 of the present invention System schematic of the ventilator Main part perspective view of main part of ventilator of embodiment 3 of the present invention The perspective view which shows the inspection door of the ventilator of Embodiment 4 of this invention Cross-sectional view of the main body of the ventilator according to Embodiment 5 of the present invention A perspective view showing the back side of the inspection door of the ventilation device Main body perspective view of Embodiment 6 of the present invention Sectional view of main part of main body of Embodiment 7 of the present invention Perspective view of the main part of the ventilation device Sectional view of main part of main body of Embodiment 8 of the present invention Cross-sectional view of a conventional ventilation device System plan view of the ventilation system

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 1A Main body 1B Main body 1C Main body 1D Main body 2 Outside air inlet 3 Outside air outlet 4 Indoor air outlet 5 Partition plate 6 Motor 7 Air supply fan 8 Air supply casing 10 Exhaust fan 11 Exhaust casing 13 Outside air introduction chamber 14 Heat exchange element 17 Outside air inflow surface 20 Indoor air inlet 20A Indoor air inlet 20B Indoor air inlet 20C Indoor air inlet 21 Electrical box 22 Wall surface 24 Outside air inlet duct 25 Exhaust duct 26 Outdoor 27 Supply air primary duct 29 Supply air secondary duct 30 Toilet air inlet 33 Inspection door 33A Inspection door 33B Inspection door 34 Exhaust filter 34A Exhaust filter 39 Sound insulation wall 40 Drain pan 41 Filter frame 42 Exhaust filter 45 Insect net 46 Insect receiving tray

Claims (11)

An outside air inlet that communicates with the outside via a duct, an outside air outlet that communicates with an air supply opening that is also opened indoors via the duct, and the outside air inlet and the outside air outlet that pass through the air supply fan An air supply passage formed in communication, an indoor air intake port that directly takes in indoor air, an indoor air outlet that communicates with the outdoors via a duct and exhausts indoor air, and the indoor air intake port and the indoor An exhaust passage formed by communicating with an air outlet through an exhaust blower is provided in the main body, and heat exchange is performed between the outside air and room air at a position where the supply passage and the exhaust passage intersect. A heat exchange element is provided, and the outdoor air inlet, the outdoor air outlet, and the indoor air outlet are provided on the upper surface of the main body, the indoor air inlet is provided on a surface other than the upper surface and the rear surface of the main body, and the main body is installed on the indoor wall surface. a ventilator, condensed water generated in the lower within the body The easy the heat exchange element is provided, the air supply blower thereabove, said exhaust blower, and the electrical unit ventilation device provided with a. An exhaust fan and an exhaust casing are provided on the rear rotation shaft of the motor, which is attached to a partition plate that divides the body space into the front and rear and the rotation axis direction is located front and rear, and an air supply fan and an air supply casing are provided on the front rotation shaft. ventilation device according to claim 1, wherein the air introduction chamber communicating with the outside air inflow surface and the outside air inlet of the heat exchange elements are laminated in a direction juxtaposed with the exhaust casing. The ventilator according to claim 1 or 2, wherein a toilet air suction port that communicates directly with the suction side of the air supply fan without passing through a heat exchange element is provided on the upper surface of the main body. The ventilation apparatus according to claim 1 , 2 or 3 , wherein an inspection door that can be opened and closed is provided at a lower front portion of the main body. The ventilator according to claim 4, wherein the inspection door is provided with an indoor air inlet provided with an exhaust filter. The ventilator according to claim 5, wherein an exhaust filter provided at the indoor air inlet is detachably attached from the front side. The ventilator according to any one of claims 1 to 6, wherein a sound insulating wall formed in a hood shape is provided on the back side of the indoor air inlet. The ventilator according to any one of claims 1 to 7 , wherein a drain tray with a receiving portion protruding from the front, rear, left, and right main body peripheral surfaces is integrally provided on the lower surface of the main body shell. Provided the air supply filter housed in filter frame relative to the outside air inflow surface of the heat exchange element, claim 4 which is detachable while rotating the inspection door toward the front each filter frame according to any one of the 8 Ventilation device. The ventilation device according to claim 9, wherein the insect net is provided by insert molding or welding at a filter frame opening located upstream of the filter. The ventilator according to any one of claims 4 to 10 , further comprising a concave insect receiving tray for receiving insect dead bodies, dust and the like on the lower surface of the main body air supply flow path, and detachable in the direction of the inspection door.

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