JPH06313602A - Heat exchange type ventilating fan - Google Patents

Abstract

PURPOSE:To improve the maintainability of a heat exchange device by increasing the size of a gripper for removing the heat exchange device into that where it is easy to be gripped without lowering the ventilation efficiency of a heat exchange type ventilating fan to the utmost. CONSTITUTION:A heat exchange type ventilating fan is constructed as follows. A first filter 11 and a second filter 12 are selectably mounted on each of four surfaces of a heat exchange device 9 removably provided at an intersection between an exhaust passage 6 and an air supply passage 7. A filter gripper portion 11A is formed on the first filter 11, and upon the first and second filters 11 and 12 being mounted on the heat exchange device 9 the gripper portion 11A on the first filter 11 is disposed in the vicinity of a device gripper portion 9A located on the side of a louvre 21 of the heat exchange device 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchange type ventilation fan for exhausting dirty air in a room, supplying fresh air outside the room and exchanging heat between these air.

[0002]

2. Description of the Related Art In recent years, from the viewpoint of energy saving, housings having high airtightness and high heat insulation have become mainstream. Therefore, even in ventilation of a house, it is possible to reduce energy loss for heating and cooling the room. Demand for heat exchange type ventilation fans is increasing.

Conventionally, this type of heat exchange type ventilation fan has a structure as shown in FIG. That is, 101 is the chamber wall 10
2 is a box-shaped main body having an opening on the indoor 103 side, and an exhaust passage 106 that communicates between the indoor 103 and the outdoor 105 side through two openings 104 opened on the indoor wall 102. The air supply passage 107 is formed so as to intersect. At this intersection, a hexahedron is provided inside the exhaust passage 106 with an element ventilation passage 108A in one direction of a plurality of element ventilation passages that are alternately crossed inside the hexahedral, and the element ventilation passage 108B in the other direction. Is connected to the air supply passage 107 to separate the exhaust passage 106 and the air supply passage 107, and a heat exchange element 109 for exchanging heat between the air passing through the element air passages 108A and 108B is detachably provided. There is. This heat exchange element 109 is used for the element ventilation passage 10
8A and 108B, which are opposite to each other on four sides connecting the four surfaces on both sides
Each of the sides is formed in a substantially rhombic shape symmetrically positioned, and one end of the two opposing sides on the minor axis side is connected to the main body 10.
The bottom end of the main body 101 is abutted, and one end of the two opposing sides on the long axis side is abutted on the inner side of the main body 101, and the other end is abutted on the partition plate 110 provided on the main body 101. By being in contact with each other, they can be attached to the intersection of the exhaust passage 106 and the air supply passage 107 from either the front-rear direction. And on each of the two opposing sides on the minor axis side,
Handle part 10 to be gripped when attaching and detaching the heat exchange element 109
9A is formed.

Further, the element ventilation passage 10 of the heat exchange element 109.
A groove 113 is formed on each of four sides connecting the four surfaces on both sides of 8A and 108B, and two filters 111 and 112 for selectively covering two of the four surfaces on both sides of the element ventilation passage 108 are attached. ing. Then, the filters 111, 11 are provided in the groove portions 113 located on the upstream side of the exhaust passage 106 side and the supply air passage 107 side of the heat exchange element 109, respectively.
2 is installed. Further, inside the main body 101, an exhaust air blower 117 and an air blower blower 117, which are composed of an exhaust blade 114, an air supply blade 115 arranged inside the exhaust passage 106 and an air supply passage 107, and a motor 116 for driving these blades. 118 is provided. Further, the exhaust passage 10 is provided by covering the opening of the main body 101 on the room 103 side of the main body 101 and bringing the back surface into contact with one of the two opposite sides of the heat exchange element 109 located on the side of the room 103.
A louver 121 that divides and forms the suction port 119 of No. 6 and the discharge port 120 of the air supply passage 107 is detachably provided.

In the above structure, when power is supplied to the motor 116, the exhaust blades 114 and the air supply blades 115 rotate, the dirty air in the room 103 is sucked in through the suction port 119, and element ventilation of the heat exchange element 109 occurs. Road 108A
Through the exhaust passage 106 and the outdoor 105
Fresh air outside the room 105 is discharged to the element ventilation path 10 of the heat exchange element 109 through the air supply path 107.
8B, when heat is exchanged with the exhaust air when passing through the element air passage 108B, the discharge port 120
The air is supplied to the room 103 from the inside, and the dirty air in the room 103 that has been cooled or heated is discharged to the outside 105 and heat is exchanged between this air and the fresh air outside the room 105 to be supplied. This reduces the decrease in energy loss during ventilation of the room 103.

When dust or the like contained in the exhaust air and the supply air adheres to the filters 111 and 112 while the heat exchanging fan is used, the ventilation efficiency of the heat exchanging fan decreases. , The louver 121 is removed from the main body 101, and a hand is put through the opening of the main body 101 to heat-exchange element 10
After grasping the handle portion 109A of 9, removing the heat exchange element 109 from the main body 101, taking out from the main body 101 and cleaning the filters 111, 112 or the heat exchange element 109, the heat exchange element 109 is attached to the main body 101 again and the louver 121 is attached. . During this cleaning work, the heat exchange element 109
Even if the filters 111 and 112 are removed from the cleaning and the cleaning positions are not memorized, the filters 111 and 112 are attached to the two surfaces centering on either one of the handle parts 109A of the heat exchange element 109. If attached, the heat exchange element 109 can be attached to the main body 101 depending on the exchange of the heat exchange element 109 in the front-rear direction.

[0007]

In such a conventional heat exchange type ventilation fan, the handle 109A for improving the maintainability of the heat exchange element 109 has the heat exchange element 109.
Since the grip portions 109A are provided on the two sides facing each other on the short axis side of the heat exchange element 109A, the handle portion 109A is increased in size so as to be easily gripped, and the detachability of the heat exchange element 109 is improved. However, there is a problem that the pressure loss of the heat exchange element 109 itself is increased and the ventilation efficiency of the heat exchange type ventilation fan is reduced if the above is attempted to be further improved.

The present invention is to solve the above-mentioned problems, and the handle part for attaching and detaching the heat exchange element is enlarged to a size that is easy to grasp without reducing the ventilation efficiency of the heat exchange type ventilation fan as much as possible. It is an object of the present invention to provide a heat exchange type ventilation fan capable of further improving the maintainability of 109.

[0009]

A first means for achieving the above-mentioned object of the present invention is a box-like shape having an opening on the indoor side, the inside of which is an exhaust passage and a supply passage communicating with the inside and outside of the room. A body formed by intersecting air passages and a hexahedron detachably provided at the intersection of the exhaust passage and the air supply passage from the opening of the body, and a plurality of element ventilations provided alternately inside the hexahedron. An element ventilation passage in one direction of the passage communicates with the exhaust passage and an element ventilation passage in the other direction communicates with the air supply passage, and the two opposite sides of four sides connecting the four sides of the element ventilation passage are connected. By abutting one on the outdoor bottom of the main body, the exhaust passage and the air supply passage are separated, and a heat exchange element for exchanging heat between the air passing through these element passages, the exhaust passage, and Exhaust gas delivery provided in each of the air supply passages Means and air supply / blowing means, and a first filter detachably provided upstream of the heat exchange element on the side of the exhaust passage and the side of the air supply passage for blocking dust and the like flowing into the inside of the heat exchange element. And the second
The filter and the opening of the main body from the indoor side, and the back surface is brought into contact with one of the four sides of the heat exchange element, which are located on the indoor side of the two opposite sides, to thereby introduce the suction port of the exhaust passage. And a louver partitioning and forming an air supply port of the air supply passage, and element handle portions are formed on each of the two sides of the heat exchange element, the two sides of the heat exchange element being on the bottom side of the main body or the The heat exchange element has a symmetrical shape that can be arranged on the louver side, and the first filter or the second filter is selectively attached to each of the four surfaces of the heat exchange element. When a filter handle is formed on either side and these filters are mounted on the heat exchange element, the filter handle with the filter handle formed on the heat exchange element is Is obtained by the two sides the louvers of the heat exchange type ventilation fan which is placed on the element grip part near located on the side structure of the 換素Ko.

The second means for achieving the above object is to make the filter handle portion of the filter have a length substantially equal to the total length of the two sides of the heat exchange element, and to connect the filter handle portion to the heat treatment element. When mounted on the exchange element, the heat exchange type ventilation fan is formed to have a shape in which a tip end portion of the heat exchange type fan is in contact with the back surface of the louver substantially along one side of the two sides located on the louver side.

[0011]

The present invention has the structure of the above-mentioned first means.
Even if you do not increase the size of both the front and rear element handles of the heat exchange element so that they can be easily grasped, you can simply increase the size of the handle attached to the louver side of the heat exchange element. It is possible to improve the detachability of the element.

Further, according to the structure of the second means, the front end of the handle portion of the filter abuts the back surface of the louver, thereby preventing a gap generated between the heat exchange element and the louver.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.
Will be described with reference to.

As shown in the figure, 1 is installed on the chamber wall 2,
It is a box-shaped main body having an opening on the side of the interior 3, and inside thereof, an exhaust passage 6 and an air supply passage 7 that connect the interior 3 and the exterior 5 with each other through two openings 4 opened on the interior wall 2. Are formed by intersecting. At this intersection, a hexahedron is provided with an element air passage 8A in one direction of a plurality of element air passages provided inside the hexahedron, in the exhaust passage 6, and an element air passage 8B in the other direction. A heat exchange element 9 is provided which communicates with the air supply passage 7 to separate the exhaust passage 6 and the air supply passage 7 and exchanges heat between the air passing through the element air passages 8A and 8B. The heat exchange element 9 is formed in a substantially rhombic shape in which two opposing sides of four sides connecting the two sides of the element ventilation passage 8 are symmetrically located, and one of the two opposing sides of the minor axis side thereof is formed. Ends of the main body 1 are brought into contact with the bottom of the main body 1, and one end of the two opposing sides on the major axis side is connected to the main body 1.
Of the exhaust passage 6 and the air supply passage 7 by contacting the other end of the partition plate 10 provided on the main body 1 with the inner end of the exhaust pipe 6 and the partition plate 10 provided on the main body 1. There is. And 2 facing each other on the minor axis side
An element handle portion 9A that is gripped when the heat exchange element 9 is attached and detached is formed on each of the sides.

Further, the element ventilation paths 8A, 8 of the heat exchange element 9 are provided.
On each of the four sides connecting the four surfaces at both ends of B, two of the four surfaces at both ends of the element ventilation passages 8A and 8B are selectively covered 2
Sheets of first filter 11 and second filter 12
A groove portion 13 is formed for mounting the. And, in the groove portion 13 located on the upstream side of the exhaust passage 6 of the heat exchange element 9,
A second filter 12 is attached to a groove portion 13 located on the upstream side of the first filter 11 and the air supply passage 7 which will be described later. On the side of the element handle portion 9A side of the first filter 11, a filter handle portion 11A having a length substantially along one side of the heat exchange element 9 is provided, and the filter handle portion 11A has a tip end thereof. Heat exchange element 9
The element handle portion 9A is formed in a shape that is substantially flush with the tip portion of the element handle portion 9A.

Inside the main body 1, the exhaust vanes 14 and the air supply vanes 1 arranged inside the exhaust passage 6 and the air supply passage 7, respectively.
5 and a motor 16 for driving these blades, an exhaust air blower 17 and an air supply blower 18 are provided. In addition, by covering the opening of the main body 1 on the room 3 side of the main body 1 and bringing the back surface into contact with the element handle portion 9A of the heat exchange element 9 and the tip end portion of the filter handle portion 11A of the first filter 11, , Suction port 19 of exhaust passage 6
A louver 21 that divides and forms the discharge port 20 of the air supply passage 7
Is detachably installed.

The maintenance work of the heat exchange element 9 of the heat exchange type ventilation fan constructed as described above will be described below.

While the heat exchanging type ventilation fan is used, dust and the like are generated in the first filter 11 and the second filter 1.
When the ventilation efficiency of the heat exchange type ventilation fan is reduced due to the adhesion to the heat exchanger 2, the louver 21 is removed from the main body 1, and a hand is put through the opening of the main body 1 to insert the element handle portion 9A of the heat exchange element 9 and the first filter. Grasping both the handle 11A and the heat exchange element 9
After taking out the main body 1 and cleaning the first filter 11, the second filter 12 or the heat exchange element 9,
The louver 21 is attached to the main body 1 again. In this cleaning operation, even when the first filter 11 and the second filter 12 are removed from the heat exchange element 9 for cleaning, the elements of the heat exchange element 9 need not be remembered even if the mounting positions of these filters are remembered. The filter handle portion 11A of the first filter 11 is provided on either one of the handle portions 9A.
While being positioned, the second filter 12 is mounted on the surface sandwiching the element handle portion 9A, and both the element handle portion 9A and the filter handle portion 11A of the heat exchange element 9 are gripped by hand, and the heat exchange element 9 If the first filter 11 is mounted so that it is located on the upstream side of the exhaust passage 6, the second filter 12 is arranged on the upstream side of the air supply passage 7.

As described above, according to the heat exchange type ventilation fan of the embodiment of the present invention, the element handle portions 9A for facilitating the attachment / detachment of the heat exchange element 109 face each other on the minor axis side of the heat exchange element 9. Element handles 9 are provided on each side.
Since the filter handle portion 11A of the first filter 11 is disposed in the vicinity of A, both the element handle portions 9A of the heat exchange element 9 are enlarged to a size that is easy to grasp, and the heat exchange element 9 can be easily attached and removed. Without first filter 1
The detachability of the heat exchange element 9 can be improved simply by enlarging the filter handle portion 11A of No. 1, and therefore, the maintainability of the heat exchange element 9 can be improved without increasing the pressure loss of the heat exchange element 9 itself. Can be improved.

Further, the filter handle portion 11A of the first filter 11 is formed to have a length substantially along one side of the heat exchange element 9, and the tip end portion of the filter handle portion 11A is brought into contact with the back surface of the louver 21. Since the suction port 19 and the discharge port 20 are defined by the above, the filter handle portion 11A prevents a gap generated between the louver 21 and the element handle portion 9A of the heat exchange element 9.

As described above, according to the heat exchange type ventilation fan of the embodiment of the present invention, the exhaust air passing through the exhaust passage 6 from the gap generated between the louver 21 and the element handle portion 9A of the heat exchange element 9 is generated. It is possible to prevent a short circuit with the supply air passing through the supply passage 7.

[0022]

As is apparent from the above-described embodiments, according to the present invention, the element handle portions for facilitating the attachment and detachment of the heat exchange element are provided at the two opposing sides on the minor axis side of the heat exchange element. In addition, the filter handle part of the filter is arranged in the vicinity of the element handle part, and both of these handle parts can be grasped to attach and detach the heat exchange element, thereby increasing the pressure loss of the heat exchange element itself. It is possible to provide a heat exchange type ventilation fan that can increase the maintainability of the heat exchange element 109 by increasing only the size of the filter handle portion so that it can be easily grasped.

The filter handle of the filter is formed to have a length substantially along one side of the heat exchange element, and the tip of the filter handle is brought into contact with the back surface of the louver, whereby the louver and the heat exchange element are separated from each other. It is possible to prevent a short circuit between the exhaust air passing through the exhaust passage and the supply air passing through the supply passage through a gap generated between the element handle portion and the element handle portion.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an installed state of a heat exchange type ventilation fan according to an embodiment of the present invention.

FIG. 2 is a bottom view showing a state in which a filter is attached to the heat exchange element of the heat exchange type ventilation fan.

FIG. 3 is a front view of a filter of the heat exchange type ventilation fan.

FIG. 4 is a cross-sectional view showing the installation state of a conventional heat exchange type ventilation fan.

FIG. 5 is a perspective view showing a state in which the louver of the heat exchange type ventilation fan is removed.

[Explanation of symbols]

 3 Indoors 5 Outdoors 6 Exhaust passage 7 Air supply passage 8A Element ventilation passage 8B Element ventilation passage 9 Heat exchange element 9A Element handle 11 First filter 11A Filter handle 12 Second filter 17 Exhaust air blower 18 Air supply air blower 19 Suction port 20 Air supply port 21 Louver

Claims (2)

[Claims] 1. A main body having a box-like shape having an opening on the indoor side and formed by intersecting an exhaust passage and an air supply passage communicating with the inside and outside of the interior, and the exhaust passage and the exhaust passage from the opening of the main body. A hexahedron detachably provided at the intersection of the air supply passages, and an element air passage in one direction of a plurality of element air passages that are alternately provided inside the hexahedron is provided in the exhaust passage,
By connecting the element ventilation passage in the other direction to the air supply passage, and by bringing one of two opposing four sides connecting the four sides of the element ventilation passage into contact with the outdoor side bottom of the main body, A heat exchange element for separating the exhaust passage and the air supply passage and exchanging heat between the air passing through these element passages, and an exhaust air blowing means and a supply air supply unit arranged in each of the exhaust passage and the air supply passage. A first filter and a second filter that are detachably provided on the upstream side of the air exchange means and on the exhaust passage side and the air supply passage side of the heat exchange element to prevent dust and the like flowing into the heat exchange element. While covering the filter and the opening of the main body from the indoor side,
By bringing the back surface into contact with one of the four sides of the heat exchange element, which is located on the indoor side of the two opposite sides, a louver that defines the suction port of the exhaust passage and the air supply port of the air supply passage is formed. An element handle is formed on each of the two sides of the heat exchange element, and the two sides of the heat exchange element have a symmetrical shape that can be arranged on the bottom side or the louver side of the main body.
In addition, the first filter or the second filter is selectively attached to each of the four surfaces of the heat exchange element, and a filter handle portion is formed on either the first filter or the second filter. ,
When these filters are mounted on the heat exchange element, a heat exchange type in which a filter handle portion having a filter handle portion is arranged in the vicinity of the element handle portion located on the louver side of two sides of the heat exchange element. Ventilation fan. 2. The filter handle of the filter has a length substantially equal to the total length of the two sides of the heat exchange element, and when the filter handle is attached to the heat exchange element, the louver of the two sides. The heat exchange type ventilation fan according to claim 1, wherein the heat exchange type ventilation fan is formed in such a shape that a tip end portion thereof is in contact with the back surface of the louver substantially along one side located on the side.