JPH0694388A - Mounting apparatus for heat exchanger - Google Patents

Abstract

PURPOSE:To perform easily and safely attaching and detaching operations of a heat exchanger. CONSTITUTION:A heat exchanger 11 has first and second mounting pieces 21, 22. The piece 21 of the exchanger 11 is inserted fixedly between a first mounting rail 15 of a body case 12 side and a receiving member 18, and the piece 22 is clamped fixedly with a second mounting rail 16 with a butterfly screw 23, thereby mounting in the case 12. In this case, the piece 21 is inserted between the rail 15 and the member 18, thereby temporarily holding the exchanger 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger mounting device having a structure in which a cross-flow heat exchanger is detachably mounted from the lower surface side of the main body case.

[0002]

2. Description of the Related Art For example, in an air conditioning ventilation fan for business use,
Inside the rectangular box-shaped body case, two for air supply and exhaust
A set of blowers, a cross-flow heat exchanger for exchanging heat between the air supply and the exhaust, and the like are arranged. And, this kind of air conditioning ventilation fan is usually arranged behind the ceiling of the building, and the heat exchanger arranged in the main body case has a main body case for easy maintenance. It is attached so that it can be attached and detached from the lower surface side. An example of the mounting structure of the heat exchanger is shown in FIG.
Shown in.

In FIG. 3, on the opposite side surfaces 1a, 1b and the upper surface 1c in the main body case 1 arranged in the ceiling, a rectangular parallelepiped cross-flow type heat exchanger 2 is attached so as to extend in the longitudinal direction. Rails 3a, 3b and supporting rail 4a
Is provided. Further, a closing plate 1d is detachably attached to the lower surface of the main body case 1,
A supporting rail 4b is provided on the upper surface of the closing plate 1d so as to face the supporting rail 4a.

On the other hand, of the four ridge lines extending in the longitudinal direction of the heat exchanger 2, two ridge lines facing each other on the left and right sides have mounting pieces 5 and 5 respectively extending along the ridge lines so as to project laterally. Is provided.

In the heat exchanger 2, the left and right mounting pieces 5 and 5 are respectively attached to the mounting rails 3a and 3b from the lower side in a state where the upper ridge portion is in contact with the supporting rail 4a. It is mounted in the main body case 1 by fixing it with the screw 6, and by attaching the closing plate 1d to the lower surface of the main body case 1, the supporting rail 4b is attached to the lower ridge portion of the heat exchanger 2 from below. I have come into contact with them.

Therefore, according to this structure, the heat exchanger 2 can be attached to and detached from the lower surface side of the body case 1.

[0007]

However, in the conventional structure described above, the heat exchange is performed when the thumbscrew 6 is loosened or tightened in order to attach / detach the heat exchanger 2 to / from the body case 1 at the time of maintenance. In order to prevent the vessel 2 from falling, it is necessary to work while supporting the heat exchanger 2 by hand. For this reason, most of the attachment / detachment work of the heat exchanger 2 is a two-handed work, which is a troublesome work.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a heat exchanger mounting device which enables easy and safe attachment / detachment work of the heat exchanger.

[0009]

According to the present invention, a cross-flow type heat exchanger is detachably mounted in a main body case from the lower surface side thereof, and the heat exchanger is attached to opposite side surfaces in the main body case. First and second mounting rails, which are provided so as to face each other and extend in the longitudinal direction of the heat exchanger, respectively, and a first mounting rail among the first and second mounting rails is provided below the first and second mounting rails. Of the four ridgelines extending in the longitudinal direction of the heat exchanger, which are provided so as to face each other and whose projecting dimension from the side surface of the main body case is set to be smaller than that of the first mounting rail. A first mounting piece and a second mounting piece, which are provided so as to project laterally from two facing ridge portions, respectively, and the heat exchanger includes the first mounting piece and a first mounting rail. Fixed by inserting it between the receiving member Rutotomoni, is characterized in that it has a structure that is attached to the main body case by screwing the second mounting piece to the second mounting rail.

In this case, it is preferable that the receiving member and the first mounting piece extend in the longitudinal direction of the heat exchanger, and the length dimension thereof is set to be substantially equal to the length dimension of the heat exchanger.

[0011]

According to the above means, when the first mounting piece provided on the heat exchanger is inserted between the first mounting rail on the main body case side and the receiving member, the heat exchanger is Will be temporarily held in the main body case. Therefore, when loosening or tightening the screw on the second mounting piece side in order to attach / detach the heat exchanger, it is not necessary to support the heat exchanger by hand, and the attaching / detaching work of the heat exchanger is easy. You can be safe.

When the receiving member and the first mounting piece are set to have a length substantially equal to that of the heat exchanger, the first mounting piece is placed between the first mounting rail and the receiving member. The holding force when inserted is increased, and the heat exchanger can be held more reliably.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to an air conditioning ventilation fan will be described below with reference to FIGS. 1 and 2 mainly show the mounting structure of the heat exchanger, of which FIG. 1 shows the mounting state of the heat exchanger, and FIG. 2 shows the mounting state of the heat exchanger. Shows.

First, the heat exchanger 11 is of a well-known cross-flow type in which a large number of square heat exchange elements 11a are laminated with their directions alternately changed by 90 degrees.
It has a rectangular parallelepiped shape.

The body case 12 of the air-conditioning ventilation fan has a rectangular box shape and has a storage chamber 13 in which the heat exchanger 11 is arranged. A closing plate 14 that closes the opening 13a is detachably attached to the lower surface of the storage chamber 13.

On the left and right side faces 12a, 12b facing each other in the figure in the main body case 12, the first and second iron plates extending in the longitudinal direction of the heat exchanger 11 are located at the respective central portions in the vertical direction. The mounting rails 15 and 16 are fixed. In addition, the first mounting rail 15 is provided on the left side surface 12a.
Further, a receiving member 18 made of an iron plate is fixed so as to face each other with a gap 17 from below.

The receiving member 18 has a projecting dimension from the left side surface 12a smaller than that of the first mounting rail 15 and, like the first mounting rail 15, the heat exchanger 11 extends in the longitudinal direction. And the length dimension thereof is set to be substantially equal to the length dimension of the heat exchanger 11. In addition, the tip of the receiving member 18 is provided with a guide portion 18 that is inclined downward.
a is formed.

A first support rail 19 made of an iron plate extending in the longitudinal direction of the heat exchanger 11 is fixed to the upper surface 12c of the main body case 12 at the center in the left-right direction, and the closing plate is also provided. A second supporting rail 20 is fixed to the upper surface of 14 so as to face the first supporting rail 19.

On the other hand, in the heat exchanger 11, first and second mounting pieces 21 and 22 made of iron plates are laterally provided on two opposing ridgelines of four ridgelines extending in the longitudinal direction thereof. It is fixed so as to project to. The first and second attachment pieces 21, 22 extend in the longitudinal direction of the heat exchanger 11, and the length dimension thereof is set to be substantially equal to the length dimension of the heat exchanger 11. Of these, the first on the left side of the figure
The mounting piece 21 of the first mounting rail 15 and the receiving member 1
The second mounting piece 22 on the right side is inserted into the gap 17 between the second mounting rail 8 and the second mounting rail 16 and is fastened and fixed by the thumbscrew 23 which is applied to the second mounting rail 16 from below and is twisted. A handle 24 is provided at a predetermined portion of the second mounting piece 21.

Thus, in the above structure, the heat exchanger 11
When attaching to the main body case 12, it is performed as follows. First, the closing plate 14 is removed from the main body case 12 to open the opening 13a on the lower surface of the storage portion 13.

Next, as shown in FIG. 2, the heat exchanger 11 is inserted into the accommodating portion 13 with the first mounting piece 21 on the left side facing upward, and the first mounting piece 21 is placed in the first mounting piece 21. Of the mounting rail 15 so that it abuts on the lower surface of the mounting rail 15.
While inserting the heat exchanger 11 into the gap 17 between the receiving member 18 and the receiving member 18, the heat exchanger 11 is rotated upward with the first mounting piece 21 as a fulcrum as shown by an arrow A.

As shown in FIG. 1, the first mounting piece 21 is the first mounting piece 21.
When it is inserted deep into the gap 17 between the mounting rail 15 and the receiving member 18, the first mounting rail 15
The heat exchanger 11 is temporarily held by the holding force between the heat exchanger 11 and the receiving member 18.

Then, the second mounting piece 22 is brought into contact with the second mounting rail 16 from below and is tightened and fixed by the thumbscrew 23. As a result, the heat exchanger 11 is attached to the main body case 11
It can be installed in the storage part 13 of the. At this time,
The upper ridge line portion of the heat exchanger 11 is the first supporting rail 1
It is in contact with 9.

Thereafter, the closing plate 14 is attached to the lower surface of the main body case 12 while the second supporting rail 20 of the closing plate 14 is brought into contact with the lower ridge line portion of the heat exchanger 11.
This completes the attachment of the heat exchanger 11.

On the other hand, when removing the heat exchanger 11 from the main body case 12, first, the closing plate 14 is removed from the main body case 12. Next, loosen the thumbscrew 23 on the side of the second mounting piece 22, and then while rotating the heat exchanger 11 in the downward direction opposite to the arrow A, move the first mounting piece 21 to the first mounting rail. 1
The heat exchanger 11 is taken out from between the housing 5 and the receiving member 18, and the heat exchanger 11 is taken out downward from the housing 13. This completes the removal of the heat exchanger 11.

According to the above-described embodiment, the first mounting piece 21 provided on the heat exchanger 11 is inserted between the first mounting rail 15 on the main body case 12 side and the receiving member 18. In the state, the heat exchanger 11 is temporarily held by the main body case 12. Therefore, when loosening or tightening the thumbscrew 23 on the side of the second mounting piece 22 in order to attach or detach the heat exchanger 11, it is not always necessary to support the heat exchanger 11 by hand, and the heat exchanger 11 It is possible to easily carry out the attachment and detachment work. In addition, it is possible to prevent the heat exchanger 11 from dropping at the time of attachment and detachment as much as possible.

Further, in the above embodiment, the receiving member 18
When the first mounting piece 21 is inserted between the first mounting rail 15 and the receiving member 18, the first mounting piece 21 and the length dimension of the heat exchanger 11 are set substantially equal to each other. The holding power of is increased, and the heat exchanger 11 can be held more reliably.

Further, in the above embodiment, the receiving member 1
A guide portion 18a is formed at the tip of 8 in a diagonally downward direction, and the guide portion 18a serves as a guide for inserting the first mounting piece 21 between the first mounting rail 15 and the receiving member 18. Therefore, there is an advantage that the first mounting piece 21 can be easily inserted.

[0029]

According to the heat exchanger mounting device of the first aspect, the first mounting piece provided on the heat exchanger is provided between the first mounting rail on the main body case side and the receiving member. The heat exchanger is temporarily held in the main body case when it is inserted in the heat exchanger. Therefore, when loosening or tightening the screw on the second mounting piece side to attach or detach the heat exchanger, Since it is not necessary to support the heat exchanger by hand, the heat exchanger can be easily and safely attached and detached.

According to the heat exchanger mounting apparatus of the second aspect, by setting the receiving member and the first mounting piece substantially equal to the length dimension of the heat exchanger, the first mounting piece The first
The holding force when it is inserted between the mounting rail and the receiving member is increased, and the heat exchanger can be held more reliably.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, and is a vertical cross-sectional view of a main part of a heat exchanger in a mounted state.

FIG. 2 is a vertical cross-sectional view of a main part showing a state in which a heat exchanger is being attached.

FIG. 3 is a view corresponding to FIG. 1 showing a conventional configuration.

[Explanation of symbols]

11 is a heat exchanger, 12 is a main body case, 12a and 12b are side surfaces, 15 is a first mounting rail, 16 is a second mounting rail, 18 is a receiving member, 21 is a first mounting piece, and 22 is a The second attachment piece 23 is a thumbscrew.

Claims (2)

[Claims] 1. A cross-flow type heat exchanger is detachably mounted in a main body case from a lower surface side thereof, the heat exchanger being provided so as to face each other on opposite side surfaces in the main body case. First and second mounting rails respectively extending in the longitudinal direction of the heat exchanger, and the first and second mounting rails.
And a receiving rail that is provided so as to face the first mounting rail of the second mounting rails from the lower side and has a projecting dimension from the side surface of the main body case smaller than that of the first mounting rail. A member and first and second mounting pieces provided so as to project laterally at two opposing ridgeline portions of the four ridgelines extending in the longitudinal direction of the heat exchanger, In the heat exchanger, the first mounting piece is inserted and fixed between the first mounting rail and the receiving member, and the second mounting piece is screwed to the second mounting rail to fix the main body case. A heat exchanger mounting device, characterized in that it is mounted on a heat exchanger. 2. The receiving member and the first mounting piece extend in the longitudinal direction of the heat exchanger, and the length dimension thereof is set to be substantially equal to the length dimension of the heat exchanger. The mounting device for the heat exchanger according to claim 1.