JP2007147156A - Mounting plate for heat exchanger, air conditioner using the same, and assembling method of air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting plate for a heat exchanger, an air conditioner using the same, and an assembling method of the air conditioner capable of absorbing difference in level of an auxiliary heat exchanger, and preventing warpage of the auxiliary heat exchanger. <P>SOLUTION: This mounting plate 4 comprises a first connecting portion 42 capable of being connected with the auxiliary heat exchanger 3, and a second connecting portion 43 capable of being connected with a main body heat exchanger 2. The first connecting portion 42 has slots 44 in which screws 12 for connecting with the auxiliary heat exchanger 3, are inserted. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a heat exchanger mounting plate, an air conditioner using the same, and a method for assembling the air conditioner.

Conventionally, as described in Patent Document 1, there is an indoor unit of an air conditioner including an auxiliary heat exchanger for assisting heat exchange capability in addition to a main body heat exchanger. In this indoor unit, the auxiliary heat exchanger is screwed to the main body heat exchanger while being superposed on the front surface of the main body heat exchanger.
Japanese Patent Laid-Open No. 10-89803

However, in the indoor unit described in Patent Document 1, there may be variations due to tolerances in the length or effective length of the auxiliary heat exchanger. In this case, a step is generated when the auxiliary heat exchanger is attached to the main body heat exchanger.
As a method of absorbing the step, it is conceivable to move the hairpin portion of the heat transfer tube of the auxiliary heat exchanger in the width direction. However, this method cannot cope with large variations exceeding 5 mm, and it is difficult to completely absorb the steps.

  On the other hand, if the step is forcibly fixed with screws, the auxiliary heat exchanger warps forward. When the auxiliary heat exchanger warps forward, a part of the auxiliary heat exchanger may protrude from the range where the drain pan is installed. As a result, water leakage may occur from the indoor unit. In addition, when the auxiliary heat exchanger warps forward, it may come into contact with the front grill that covers the front surface of the indoor unit, and abnormal noise such as chatter noise may occur.

  An object of the present invention is to provide a heat exchanger mounting plate, an air conditioner using the same, and an assembly of the air conditioner, which can absorb the step of the auxiliary heat exchanger and suppress the occurrence of warpage of the auxiliary heat exchanger. It is to provide a method.

The heat exchanger mounting plate of the first invention is a mounting plate for connecting the main body heat exchanger and the auxiliary heat exchanger of the air conditioner. The heat exchanger mounting plate includes a first connecting portion and a second connecting portion. The first connecting part can be connected to the auxiliary heat exchanger. The second connecting part can be connected to the main body heat exchanger. A long hole is formed in the first connecting portion. A screw for connecting to the auxiliary heat exchanger is inserted into the long hole.
Here, the first connecting part that can be connected to the auxiliary heat exchanger is formed with a long hole into which a screw for connecting to the auxiliary heat exchanger is inserted. It is possible to absorb a dimensional difference from a design position caused by a dimensional tolerance between the heat exchanger and the auxiliary heat exchanger.

The mounting plate for a heat exchanger according to a second aspect is the mounting plate for a heat exchanger according to the first aspect, wherein the first connecting portion has a side surface contact portion and a front surface contact portion. The side surface abutting portion can abut on the side surface of the auxiliary heat exchanger. The front contact portion is connected to the side contact portion. The front surface contact portion can contact the front surface of the auxiliary heat exchanger. A long hole is formed in the front contact portion.
Here, the first connecting portion is connected to the side surface contact portion that can contact the side surface of the auxiliary heat exchanger, and the front surface that can be connected to the front surface of the auxiliary heat exchanger. Since the front abutment portion has a long hole, the abutment heat exchanger is securely held in contact with the front and side surfaces of the auxiliary heat exchanger. It is possible.

The mounting plate for a heat exchanger according to a third aspect is the mounting plate for a heat exchanger according to the first aspect, further comprising a rear surface contact portion. The rear surface contact portion can contact the rear surface side of the auxiliary heat exchanger.
Here, since the rear surface contact portion capable of contacting the rear surface side of the auxiliary heat exchanger is further provided, the holding force of the auxiliary heat exchanger can be further improved.

The air conditioner of the fourth invention includes a main body heat exchanger, an auxiliary heat exchanger, a heat exchanger mounting plate, and a screw. The auxiliary heat exchanger is disposed on the outer surface side of the main body heat exchanger. The heat exchanger mounting plate has a first connecting part and a second connecting part connected to the main body heat exchanger. The first connecting part is connected to the auxiliary heat exchanger. A 2nd connection part connects with a main body heat exchanger. A long hole is formed in the first connecting portion. The long hole extends in the longitudinal direction of the auxiliary heat exchanger. The screw connects the first connecting portion to the auxiliary heat exchanger through the long hole.
Here, the first connecting portion connected to the auxiliary heat exchanger is formed with a long hole into which a screw for connecting to the auxiliary heat exchanger is inserted. It is possible to absorb the dimensional difference from the design position caused by the dimensional tolerance of the auxiliary heat exchanger.

An air conditioner according to a fifth aspect of the present invention is the air conditioner according to the fourth aspect of the present invention, comprising a hairpin portion that is a curved portion of the heat transfer tube of the auxiliary heat exchanger and a hairpin portion that is a curved portion of the heat transfer tube of the main body heat exchanger. And a connecting member for connecting the two to each other.
Here, since the connecting member is further provided, the hairpin part of the auxiliary heat exchanger and the hairpin part of the main body heat exchanger can be connected to each other by the connecting member.

An air conditioner according to a sixth aspect is the air conditioner according to the fifth aspect, wherein the connecting member has a first insertion hole and a second insertion hole. The first insertion hole is a hole for inserting the hairpin portion of the auxiliary heat exchanger. A 2nd insertion hole is a hole for inserting the hairpin part of a main body heat exchanger.
Here, by inserting the hairpin part of the auxiliary heat exchanger into the first insertion hole of the connecting member and inserting the hairpin part of the main body heat exchanger into the second insertion hole, the hairpin part and the main body heat of the auxiliary heat exchanger are inserted. It is possible to easily connect the hairpin portion of the exchanger.

The air conditioner of the seventh invention is the air conditioner of the fifth invention, and the connecting member is connected to the auxiliary heat exchanger.
Here, since the connecting member is connected to the auxiliary heat exchanger, it is possible to easily connect the main body heat exchanger and the auxiliary heat exchanger only by connecting the connecting member to the main body heat exchanger. .

The assembling method of the air conditioner of the eighth invention is the assembling method of the air conditioner of the fourth invention. This assembling method includes a first step, a second step, and a third step. In the first step, the second connecting portion of the heat exchanger mounting plate is screwed to the main body heat exchanger. In the second step, the auxiliary heat exchanger is placed at a predetermined position so as to overlap the first connecting portion of the heat exchanger mounting plate. In the third step, a screw is inserted into the long hole of the first connecting portion, and the first connecting portion and the auxiliary heat exchanger are screwed with the screw.
Here, the auxiliary heat exchanger is placed at a predetermined position so as to overlap the first connecting portion of the heat exchanger mounting plate, a screw is inserted into the long hole of the first connecting portion, and the first connecting portion is auxiliary to the first connecting portion by the screw. By screwing the heat exchanger, it is possible to absorb a dimensional difference from a design position caused by a dimensional tolerance between the main body heat exchanger and the auxiliary heat exchanger.

  The air conditioner assembly method of the ninth invention is the air conditioner assembly method of the fourth invention. This assembling method includes a first step, a second step, a third step, and a fourth step. In the first step, the auxiliary heat exchanger is overlapped at a predetermined position with respect to the long hole of the first connecting portion of the heat exchanger mounting plate. In the second step, a screw is inserted into the long hole of the first connecting portion, and the first connecting portion and the auxiliary heat exchanger are temporarily fixed by the screw. In the third step, the second connecting portion of the heat exchanger mounting plate is screwed to the main body heat exchanger. In the fourth step, the position of the auxiliary heat exchanger is adjusted, and the first connecting portion and the auxiliary heat exchanger are screwed with screws.

  Here, the auxiliary heat exchanger is previously overlapped at a predetermined position with respect to the long hole of the first connecting portion of the heat exchanger mounting plate, and a screw is inserted into the long hole of the first connecting portion, and the first by the screw. Temporarily fix the connecting portion and the auxiliary heat exchanger. Next, the second connecting portion of the heat exchanger mounting plate is screwed to the main body heat exchanger, and then the position of the auxiliary heat exchanger is adjusted, and the first connecting portion and the auxiliary heat exchanger are screwed with screws. Stop. Thereby, it is possible to absorb the dimensional difference from the design position caused by the dimensional tolerance between the main body heat exchanger and the auxiliary heat exchanger. Moreover, it is possible to attach the mounting plate to the auxiliary heat exchange in advance in a form that absorbs the tolerance of the auxiliary heat exchange.

According to the first invention, the long hole can absorb a dimensional difference from the design position caused by a dimensional tolerance between the main body heat exchanger and the auxiliary heat exchanger.
According to the second aspect of the present invention, the auxiliary heat exchanger can be securely held by coming into contact with the front and side surfaces of the auxiliary heat exchanger.
According to the third invention, the holding power of the auxiliary heat exchanger can be further improved.

According to the fourth invention, the long hole can absorb a dimensional difference from the design position caused by a dimensional tolerance between the main body heat exchanger and the auxiliary heat exchanger.
According to the fifth invention, the hairpin part of the auxiliary heat exchanger and the hairpin part of the main body heat exchanger can be connected to each other by the connecting member.
According to the sixth invention, the hairpin part of the auxiliary heat exchanger and the hairpin part of the main body heat exchanger can be easily connected.

According to the seventh invention, the main body heat exchanger and the auxiliary heat exchanger can be easily connected by simply connecting the connecting member to the main body heat exchanger.
According to the eighth invention, it is possible to absorb the dimensional difference from the design position caused by the dimensional tolerance between the main body heat exchanger and the auxiliary heat exchanger.
According to the ninth aspect of the invention, it is possible to absorb a dimensional difference from a design position caused by a dimensional tolerance between the main body heat exchanger and the auxiliary heat exchanger. Further, the mounting plate can be attached to the auxiliary heat exchange in advance in a form that absorbs the tolerance of the auxiliary heat exchange.

<Overall configuration of the air conditioner 1>
The air conditioner 1 shown in FIGS. 1 to 4 is an indoor unit of an air conditioner, and includes a main body heat exchanger 2, an auxiliary heat exchanger 3 disposed on the outer surface side of the main body heat exchanger 2, and a heat An exchanger mounting plate 4 (hereinafter referred to as mounting plate 4), screws 11 and 12 for connecting the mounting plate 4 to the main body heat exchanger 2 and the auxiliary heat exchanger 3, and a connecting member 6 are provided. .
The main body heat exchanger 2 is installed in the bottom case 5 of the air conditioner 1.
The auxiliary heat exchanger 3 is a heat exchanger for supplementing the heat exchange capability of the main body heat exchanger 2. The auxiliary heat exchanger 3 is connected to the outer surface of the main body heat exchanger 2 on the front surface side by a mounting plate 4.

<Configuration of mounting plate 4>
As shown in FIGS. 1 to 4 and FIG. 5, the mounting plate 4 includes a main body portion 41, a first connecting portion 42 that can be connected to the auxiliary heat exchanger 3, and the main body heat exchanger 2. A second connecting portion 43 that can be connected to the rear surface, and a rear contact portion 46.

  The first connecting portion 42 is formed with a long hole 44 into which the screw 12 for connecting to the auxiliary heat exchanger 3 is inserted. Since the long hole 44 extends in the longitudinal direction of the auxiliary heat exchanger 3, it is possible to screw the auxiliary heat exchanger 3 after adjusting the length or position of the auxiliary heat exchanger 3 in the longitudinal direction. It is. Thereby, it is possible to absorb the dimensional difference from the design position caused by the dimensional tolerance between the main body heat exchanger 2 and the auxiliary heat exchanger 3 by the long hole of the mounting plate 4.

  Moreover, the 1st connection part 42 has the side surface contact part 42a and the front surface contact part 42b. The side contact portion 42 a can contact the side surface of the auxiliary heat exchanger 3. The front contact portion 42 b is connected to the side contact portion 42 a and can contact the front surface of the auxiliary heat exchanger 3. Thereby, the side surface contact portion 42 a and the front surface contact portion 42 b can contact the front surface and the side surface of the auxiliary heat exchanger 3 to reliably hold the auxiliary heat exchanger 3.

<Configuration of connecting member 6>
As shown in FIG. 3, the connecting member 6 connects the hairpin portion 3 a that is the curved portion of the heat transfer tube of the auxiliary heat exchanger 3 and the hairpin portion 2 a that is the curved portion of the heat transfer tube of the main body heat exchanger 2. It is a member for doing.
The connecting member 6 has a first insertion hole 6a for inserting the hairpin portion 3a of the auxiliary heat exchanger 3 and a second insertion hole 6b for inserting the hairpin portion 2a of the main body heat exchanger 2. Yes.
The connecting member 6 is connected to the auxiliary heat exchanger 3 by screws.

<Assembly method of air conditioner 1>
Next, an assembling method of the air conditioner 1 will be described with reference to FIGS.
First, as a first step, the second connecting portion 43 of the mounting plate 4 is screwed to the main body heat exchanger 2. Specifically, as shown in FIG. 6, after the screw 11 is inserted into the through hole 45 formed in the second connecting portion 43 of the mounting plate 4, the screw 11 is formed on the side surface 2 b of the main body heat exchanger 2. The screw hole 16 is screwed.

  Next, as a second step, the auxiliary heat exchanger 3 is placed at a predetermined position so as to overlap the first connecting portion 42 of the mounting plate 4. At this time, as shown in FIG. 6, the side contact portion 42 a of the first connection portion 42 of the mounting plate 4 contacts or approaches the side surface 3 b of the auxiliary heat exchanger 3, and the front contact of the first connection portion 42 is reached. The contact portion 42b contacts the front surface 3c of the auxiliary heat exchanger 3. Further, the rear surface contact portion 46 of the mounting plate 4 contacts the rear surface 3d of the auxiliary heat exchanger 3.

After that, as a third step, the screw 12 is inserted into the long hole 44 of the first connecting portion 42, and the first connecting portion 42 and the auxiliary heat exchanger 3 are screwed with the screw 12.
Thereby, the dimensional difference resulting from each tolerance of the main body heat exchanger 2 and the auxiliary heat exchanger 3 can be absorbed.
When the length or position of the auxiliary heat exchanger 3 is finely adjusted after the air conditioner 1 is assembled, the screw 12 is loosened, and the auxiliary heat exchanger 3 is moved along the direction in which the elongated hole 44 extends. If it is moved to a position and then the screw 12 is tightened, fine adjustment can be easily performed.

<Features>
(1)
In the mounting plate 4 of the embodiment, the first connecting portion 42 that can be connected to the auxiliary heat exchanger 3 is formed with a long hole 44 into which the screw 12 for connecting to the auxiliary heat exchanger 3 is inserted. Therefore, the long hole 44 can absorb a dimensional difference from a design position caused by a dimensional tolerance between the main body heat exchanger 2 and the auxiliary heat exchanger 3.

(2)
In the mounting plate 4 of the embodiment, the first connecting portion 42 is connected to the side surface abutting portion 42 a capable of contacting the side surface of the auxiliary heat exchanger 3 and the side surface abutting portion 42 a. The front abutting portion 42b that can abut on the front surface of the auxiliary heat exchanger 3 and the front abutting portion 42b are formed with long holes 44. It is possible to securely hold the auxiliary heat exchanger 3 in contact with the surface.

(3)
The mounting plate 4 of the embodiment further includes a rear surface contact portion 46 that can contact the rear surface side of the auxiliary heat exchanger 3, so that the holding force of the auxiliary heat exchanger 3 can be further improved. It is.
(4)
In the air conditioner 1 of the embodiment, the first connecting portion 42 that is connected to the auxiliary heat exchanger 3 is formed with a long hole 44 into which the screw 12 for connecting to the auxiliary heat exchanger 3 is inserted. The long hole 44 can absorb a dimensional difference from a design position caused by a dimensional tolerance between the main body heat exchanger 2 and the auxiliary heat exchanger 3.

(5)
Since the air conditioner 1 of the embodiment further includes the connecting member 6, the hairpin portion 3 a of the auxiliary heat exchanger 3 and the hairpin portion 2 a of the main body heat exchanger 2 can be connected to each other by the connecting member 6. Is possible.
(6)
In the air conditioner 1 of the embodiment, the hairpin portion 3a of the auxiliary heat exchanger 3 is inserted into the first insertion hole 6a of the connecting member 6, and the hairpin portion 2a of the main body heat exchanger 2 is inserted into the second insertion hole 6b. Thus, the hairpin portion 3a of the auxiliary heat exchanger 3 and the hairpin portion 2a of the main body heat exchanger 2 can be easily connected.

(7)
In the air conditioner 1 of the embodiment, since the connecting member 6 is connected to the auxiliary heat exchanger 3, the main body heat exchanger 2 and the auxiliary heat exchanger can be simply connected to the main body heat exchanger 2. 3 can be easily connected.
(8)
In the method of assembling the air conditioner 1 according to the embodiment, the auxiliary heat exchanger 3 is placed at a predetermined position so as to overlap the first connection portion 42 of the heat exchanger mounting plate, and is inserted into the elongated hole 44 of the first connection portion 42. Dimensional difference from the design position caused by dimensional tolerance between the main body heat exchanger 2 and the auxiliary heat exchanger 3 by inserting the screw 12 and screwing the first connecting portion 42 and the auxiliary heat exchanger 3 with the screw 12. Can be absorbed.

<Modification>
(A)
In the method of assembling the air conditioner 1 of the above embodiment, the mounting plate 4 is screwed to the main body heat exchanger 2, and then the auxiliary heat exchanger 3 is screwed to the mounting plate 4 on the front surface of the main body heat exchanger 2. However, the present invention is not limited to this assembling method, and as a modification of the present invention, before the auxiliary heat exchanger 3 is attached to the main body heat exchanger 2, the mounting plate 4 is preliminarily auxiliary heat exchanged. It may be temporarily fixed to the vessel 3.

That is, the assembling method of the air conditioner 1 according to the modified example of the present invention is performed by the following procedure from the first step to the fourth step.
First, as a first step, the auxiliary heat exchanger 3 is overlapped with the long hole 44 of the first connecting portion 42 of the mounting plate 4 at a predetermined position.
Next, as a second step, a screw is inserted into the long hole 44 of the first connecting portion 42, and the first connecting portion 42 and the auxiliary heat exchanger 3 are temporarily fixed with the screw.

Next, as a third step, the second connecting portion 43 of the mounting plate 4 is screwed to the main body heat exchanger 2.
After that, as the fourth step, the position or length of the auxiliary heat exchanger 3 is adjusted, and the first connecting portion 42 and the auxiliary heat exchanger 3 are screwed with screws. Similarly, it is possible to absorb the dimensional difference resulting from the respective tolerances of the main body heat exchanger and the auxiliary heat exchanger.

  Further, in this modification, the mounting plate can be attached to the auxiliary heat exchange in advance in a form that absorbs the tolerance of the auxiliary heat exchange.

  The present invention can be applied to the assembly of an auxiliary heat exchanger in an air conditioner.

The front view of the air conditioner which is embodiment of this invention. The perspective view of the air conditioner of FIG. The left view of the air conditioner of FIG. The disassembled perspective view of the air conditioner of FIG. The perspective view of the mounting plate for heat exchangers of FIG. The figure which showed simply the structure of the screwing part of the air conditioner of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air conditioner 2 Main body heat exchanger 3 Auxiliary heat exchanger 4 Heat exchanger mounting plate 6 Connecting member 44 Long hole

Claims (9)

A mounting plate (4) for connecting the main body heat exchanger (2) and the auxiliary heat exchanger (3) of the air conditioner (1),
A first connecting part (42) connectable to the auxiliary heat exchanger (3);
A second connection part (43) capable of being connected to the main body heat exchanger (2),
A slot (44) into which a screw for connecting to the auxiliary heat exchanger (3) is inserted is formed in the first connecting part (42).
Mounting plate for heat exchanger (4). The first connecting portion (42)
A side contact portion (42a) capable of contacting the side surface of the auxiliary heat exchanger (3);
A front surface contact portion (42b) that is connected to the side surface contact portion (42a) and can contact the front surface of the auxiliary heat exchanger (3);
The long hole (44) is formed in the front contact portion (42b).
The heat exchanger mounting plate (4) according to claim 1. A rear surface contact portion (46) capable of contacting the rear surface side of the auxiliary heat exchanger (3);
The heat exchanger mounting plate (4) according to claim 1. A main body heat exchanger (2);
An auxiliary heat exchanger (3) disposed on the outer surface side of the main body heat exchanger (2),
A heat exchanger mounting plate (4);
With screws,
The heat exchanger mounting plate (4) includes a first connection part (42) connected to the auxiliary heat exchanger (3), and a second connection part (43) connected to the main body heat exchanger (2). Have
A slot (44) extending in the longitudinal direction of the auxiliary heat exchanger (3) is formed in the first connection part (42),
The screw connects the first connecting portion (42) to the auxiliary heat exchanger (3) through the elongated hole (44).
Air conditioner (1). A hairpin portion (3a) that is a curved portion of the heat transfer tube of the auxiliary heat exchanger (3) and a hairpin portion (2a) that is a curved portion of the heat transfer tube of the main body heat exchanger (2) are connected to each other. A connecting member (6);
The air conditioner (1) according to claim 4. The connecting member (6)
A first insertion hole (6a) for inserting the hairpin portion (3a) of the auxiliary heat exchanger (3);
A second insertion hole (6b) for inserting the hairpin portion (2a) of the main body heat exchanger (2);
have,
The air conditioner (1) according to claim 5. The connecting member (6) is connected to the auxiliary heat exchanger (3).
The air conditioner (1) according to claim 5. An assembly method for an air conditioner (1) according to claim 4,
A first step of screwing the second connecting portion (43) of the heat exchanger mounting plate (4) to the main body heat exchanger (2);
A second step of placing the auxiliary heat exchanger (3) on the first connecting portion (42) of the heat exchanger mounting plate (4) and placing the auxiliary heat exchanger (3) in a predetermined position;
A third step of inserting the screw into the elongated hole (44) of the first connecting portion (42) and screwing the first connecting portion (42) and the auxiliary heat exchanger (3) with the screw; ,
With
Assembling method of air conditioner (1) An assembly method for an air conditioner (1) according to claim 4,
A first step of superimposing the auxiliary heat exchanger (3) at a predetermined position on a long hole (44) of the first connection portion (42) of the heat exchanger mounting plate (4);
A second step of inserting the screw into the elongated hole (44) of the first connecting portion (42), and temporarily fixing the first connecting portion (42) and the auxiliary heat exchanger (3) with the screw; ,
A third step of screwing the second connecting portion (43) of the heat exchanger mounting plate (4) to the main body heat exchanger (2);
A fourth step of adjusting the position of the auxiliary heat exchanger (3) and screwing the first connecting portion (42) and the auxiliary heat exchanger (3) with the screw;
With
A method for assembling the air conditioner (1).

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