JPH10300159A - Heat exchanging element - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide no seal member and lower a production cost because the gripper part of a knob is housed in a housing recessed part provided on an upper side end face plate. SOLUTION: An upper side end face plate 3 has on its outer surface a housing recessed part 9 for housing a knob 6 therein. The housing recessed part 9 has a depth in which the gripper part 7 of the knob 6 does not protrude from the outer surface of the upper side end face plate 3 during its housing. The knob has extending parts 8 at both sides of the gripper part 7 and come-off preventing parts 11 at the ends thereof. The extending parts 8 pass through a pair of through holes 10 provided in the housing recessed part 9. Further, the loose preventing parts 11 abut agains a pair of knob positioning ribs 13 located on the back surface of the upper side end face plate 3 upon pulling the knob. Thus, a knob pulling position is regulated. When a heat exchanging element is longitudinally overlapped, both the end faces thereof can come into contact with each other without providing a seal member. Further, a kind of end face plate the upper side of which has a knob attached and the lower side of which has a knob removed can be used.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a heat exchange element.

[0002]

2. Description of the Related Art A heat exchange element has a laminate in which a number of liners are stacked at predetermined intervals and an element frame, and is usually set in a heat exchange ventilator or the like. Since the intake air flow and the exhaust air flow alternately in the direction orthogonal to each other between the liners of the heat exchange element and perform heat exchange, as a result of using a heat exchange ventilator or the like, dirt adheres to the heat exchange element. Therefore, after a certain period of use, it is necessary to replace or remove the heat exchange element and clean it. For this reason, a handle for insertion and removal is generally attached to this type of heat exchange element. Also, this type of heat exchange element is sized so that it is not too long for easy removal. Therefore, for a large-sized heat exchange ventilator or the like, a plurality of heat exchange elements are usually set in tandem and used in a connected state in many cases.

FIG. 8 shows an example of a conventional configuration in which heat exchange elements are set and used in tandem. In FIG.
Heat exchange elements D and E having the same shape are set. The heat exchange element D is formed by stacking a plurality of liners 21 on a stacked body 22 and end face plates 23 and 24 at both ends thereof.
And an element frame 26 composed of four frame columns 25. A handle 27 that can be tilted is attached to the outer surface of the upper end plate 23. Reference numeral 28 denotes a seal material previously mounted on the lower end surface of the heat exchange element D. When the heat exchange elements D and E are connected in a column, the handle 27 of the heat exchange element E on the back side Above
Embedded in the lumber 28. Therefore, there is no gap between the element D and the element E, and it is possible to prevent airflow from leaking from the gap between the elements.

[0004]

However, when the heat exchange elements are set in tandem and used as described above, there are the following problems. Although the handle 27 was wrapped in the seal material 28, the seal material 28 became a dead space when ventilated, which deteriorated the flow efficiency of the air flow in the apparatus and increased the manufacturing cost. .

Since the handle 27 is attached to the outer surface of one of the end plates 23, the pair of end plates 23 and 24 cannot be used in common, and there is a problem that the manufacturing cost is increased. Then, an object of the present invention is to solve the above-mentioned technical problems and to provide a heat exchange element.

[0006]

According to the first aspect of the present invention, there is provided a heat exchange element which is used by being set in a heat exchange ventilator or the like, and has a heat exchange function between an exhaust air flow and an intake air flow. A heat exchange comprising a laminated body formed by stacking a large number of liners that convert between two airflows to be converted, and an element frame including a pair of end face plates respectively opposed to both end faces in the laminating direction of the laminated body. In the element, a housing recess is formed on at least one outer surface of the pair of end face plates, and is housed in the housing recess at the time of storage on the outer surface of the end face plate, and can be taken out of the housing recess at the time of use. In addition, the handle includes a flexible handle, and the handle is provided with a gripping portion and extending portions extending at both ends of the gripping portion, provided at a tip of each extending portion, and has its own handle from within the end face plate. Retainer to prevent escape Hints, the aforementioned housing recess, is characterized in that said gripping portion is provided with a pair of through-holes to penetrate freely out the extended portion to allow and away from the end plate.

According to the first aspect of the present invention, the handle can be stored, and the grip portion of the handle does not protrude beyond the outer surface of the end plate. In addition, the both end surfaces can be brought into close contact without interposing a seal material. This has the effect of reducing costs since no seal material is required. In addition, the dead space portion is reduced as compared with the related art, and the flow efficiency of the airflow in the device is increased. In addition, since the protruding portion of the handle is eliminated, the pair of end face plates can be shared. This has the effect of reducing costs. Providing a concave portion on the outer surface of the end plate also has the effect of increasing the strength of the end plate.

In the invention according to claim 2, the handle further includes a retaining portion provided at the tip of each extending portion in an intersecting manner and preventing the handle from coming out of the end face plate. 2. The heat exchange element according to claim 1, wherein a rib is provided on an inner surface of the end face plate to abut on an end of the retaining portion of the handle to regulate a pull-out position of the handle.

According to the second aspect of the present invention, when the handle is pulled out, the end of the retaining portion of the handle comes into contact with the rib provided on the inner portion of the pair of through holes. The position of the hand portion can be determined.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below.
This will be described in detail with reference to the accompanying drawings. FIG. 1 is a schematic perspective view of a heat exchange element A according to one embodiment of the present invention. First, referring to FIG. 1, the present heat exchange element A
It has a substantially rectangular parallelepiped shape. This heat exchange element A
When set in the heat exchange air device, the intake flow B and the exhaust flow C to be heat exchanged flow in directions orthogonal to each other.

The heat exchange element A is one in which a laminated body 2 in which liners 1 are laminated is held by an element frame 5. The element frame 5 includes a pair of end face plates 3 and 4 arranged at both ends of the laminate 2 in the stacking direction, and a plurality of frame columns 31 connecting the end face plates 3 and 4 to each other.
A handle 6 is attached to the upper end face plate 3 among the end face plates 3 and 4 so that the handle 6 can be freely taken in and out.

FIG. 2 is a longitudinal sectional view showing the vicinity of the upper portion of the heat exchange element A. Referring to FIG. 2, on the outer surface of the upper end face plate 3, there is provided a longitudinal accommodation recess 9 for accommodating the handle 6. When the handle 6 is stored, the housing recess 9 is
Has a depth that does not protrude from the outer surface of the upper end face plate 3, and a pair of through holes 10 penetrating through the inner surface and the outer surface of the end face plate 3 are formed in the accommodation recess 9. The through holes 10 are arranged near both ends in the longitudinal direction of the accommodation recess 9.

The handle 6 is provided with a grip portion 7 and the grip portion 7.
This is a thin strip-shaped member having a pair of extending portions 8 extended to the front end and a retaining portion 11 bulging at the tip of each extending portion 8. The handle 6 is made of, for example, a resin and has a predetermined flexibility and a predetermined elasticity. The extending portion 8 is displaceably penetrated through a pair of through holes 10 formed in the accommodation recess 9 of the end face plate 3.

FIG. 3 is a schematic perspective view of the upper end face plate 3 from the back. In FIG. 3, the handle 6 has been removed. On the back surface of the upper end plate 3, to maintain the torsional strength,
A plurality of ribs 12 formed of ridges are provided in an intersecting manner. The ribs 12 are provided on the inside of a pair of through holes, respectively, and are ribs 13 for restricting pull-out.
including. As shown in FIG. 2, when the grip portion 7 of the handle 6 is pulled upward, the tip of the retaining portion 11 of the handle 6 comes into contact with the rib 13, and the retaining portion 11 of the handle 6 is in contact with the rib 13 and the end plate. It is fixed by the inner surface 33. Therefore, the pull-out position of the handle 6 is regulated.

FIG. 4 is a cross-sectional view of the connection portion when the heat exchange elements A are connected in tandem. As described above, the handle 6 has flexibility and elasticity, and can be removed. Therefore, the handle with the handle 6 attached to the upper end face plate 3 and the handle with the handle removed for the lower end face plate 4 may be used. That is, the upper end face plate 3 and the lower end face plate 4 can be shared. As a result, only one type of end plate is required,
The cost is reduced.

Further, as described above, when the handle 6 is stored,
The grip 7 of the handle 6 does not protrude from the outer surface of the end plate 3. As shown in FIG. 4, when the heat exchange elements are connected in tandem, the receiving recesses 9 of both end plates 3 and 4 overlap, so that the storage space of the grip 7 of the handle 6 increases. That is, the depth of the accommodation recess 9 can be reduced, the thickness of the end plates 3 and 4 can be reduced, and the dead space can be reduced.
Source can be reduced.

Although the description of one embodiment of the present invention is as described above, the present invention is not limited to the above embodiment. That is, the upper end face plate 3 and the lower end face plate 4 may each have a dedicated shape. For example, as shown in FIG.
The lower end face plate 4 may not include the accommodation recess 9 on the outer surface. In this case, the thickness of the lower end face plate 4 can be made smaller than the thickness of the upper end face plate 3. Therefore, the dead space in the device is further reduced. In addition, as shown in FIG. 6, the upper end face plate 3 and the lower end face plate 4 may be provided with a concave portion 35 and a convex portion 36 for engaging with correct positions, respectively. This has the effect of preventing misalignment between the heat exchange elements when connected in tandem.

In the above embodiment, the through hole 10 is
Although it is perforated in the lower direction on the bottom surface of the accommodating recess 9, it may be perforated in the lateral direction on the side surface of the accommodating recess 9 of the upper end face plate 3 as shown in FIG. 7. In this case, the accommodation recess 9 needs to be provided deeply, but since the thickness of the upper end face plate 3 is reduced, dead space is eliminated. In addition, various changes can be made within the scope described in the claims.

[0019]

According to the first aspect of the present invention, since the grip portion of the handle is accommodated in the accommodation concave portion provided in the upper end face plate, there is no need to interpose a sealing material, and the manufacturing cost is reduced. it can. In addition, the pair of end plates can be shared, and the manufacturing cost can be reduced.

According to the second aspect of the present invention, the length of the handle portion of the handle is adjusted by the rib of the end face plate, so that the use of the handle can be stabilized.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of the heat exchange element.

FIG. 2 is a vertical cross-sectional view near the upper part of the heat exchange element according to the embodiment of the present invention.

FIG. 3 is a schematic perspective view of the lower end face plate 3 from the back surface.

FIG. 4 is a longitudinal sectional view when the heat exchange element is connected.

FIG. 5 is a longitudinal sectional view of another embodiment of the present invention when a heat exchange element is connected.

FIG. 6 is a vertical cross-sectional view of another embodiment of the present invention when a heat exchange element is connected.

FIG. 7 is a longitudinal sectional view showing the vicinity of an upper portion of a heat exchange element according to another embodiment of the present invention.

FIG. 8 is an example of a conventional heat exchange element.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 liner 3 end face plate (upper end face plate) 4 end face plate (lower end face plate) 6 handle 7 gripping portion 8 extending portion 9 receiving recess 10 through hole 11 retaining portion 12 rib 13 rib (for pulling out position control)

Claims (2)

[Claims] (1) It is used by being set in a heat exchange ventilator or the like,
A laminate (2) formed by stacking a number of liners (1) that convert heat between the two airflows (B, C) of the exhaust air flow and the intake air flow, and this laminate (2) An element frame (5) including a pair of end face plates (3, 4) opposed to both end faces in the laminating direction of the heat exchange element, wherein at least one of the pair of end face plates (3, 4) is provided. On the outside,
An accommodation recess (9) is formed, and the accommodation recess (9) is provided on the outer surface of the end face plate (3) when the accommodation recess (9) is accommodated.
And a flexible handle (6) that can be taken out of the housing recess (9) when in use, and the handle (6) includes a grip (7) and a grip (7). Extension portions (8) extending at both ends, provided at the tip of each extension portion (8),
Also, it includes a retaining portion (11) for preventing the self-escape from the inside of the end face plate (3), and the accommodation recess (9) allows the gripping portion (7) to come in contact with and separate from the end face plate (3). A heat exchange element comprising a pair of through holes (10) through which the extended portion (8) is freely inserted and removed. A rib (12) is provided on the inner surface of the end face plate (3) to contact the end of the retaining portion (11) of the handle (6) to regulate the pull-out position of the handle (6). The heat exchange element according to claim 1, wherein: