JP2001124445A - Receiver mounting structure for air conditioner and air conditioner having receiver mounting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a cost by preventing an interference of a receiver with a circumferential component such as a side plate or the like of a casing and abolishing the use of a buffer material by improving a receiver mounting structure for an air conditioner. SOLUTION: A mounting member 8 fixed to a receiver is mounted at the tube plate 31c of a heat exchanger with a screw 9, and a bent piece 84 for positioning the member 8 by contacting with the end face of the plate 31c is provided at the member 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a receiver mounting structure in an air conditioner and an air conditioner (particularly, an outdoor unit) to which the mounting structure is applied.

[0002]

2. Description of the Related Art Conventionally, in an air conditioner comprising an indoor unit and an outdoor unit, it is known to make the outdoor unit compact, for example, as disclosed in Japanese Patent Laid-Open No. 10-1.
Various attempts have been made as described in JP-A-60201. In general, the outdoor unit is configured such that devices such as a compressor, a four-way switching valve, an outdoor heat exchanger, an outdoor blower, an outdoor electric expansion valve, and a receiver are housed in a casing manufactured by sheet metal processing. Each device is arranged by effectively utilizing a space so that the clearance between each device or between each device and the casing is reduced as much as possible, thereby reducing the size of the outdoor unit.

In this type of outdoor unit, as shown in FIGS. 6 and 7, a schematic configuration of a part thereof is provided, for example, by connecting a vertical cylindrical receiver (11) to a tube at an end of an outdoor heat exchanger (12). Board (1
2a) and setting the clearance between the receiver (11) and the inner surface of the side plate (13a) of the casing (13) to about 5 mm, as a general arrangement for downsizing the device, has conventionally been achieved. Is being done.

In the illustrated example, the receiver (11) is connected to a tube sheet (12a).
A mounting member (14) is used for mounting the mounting member.
The mounting member (14) has a base end fixed to a substantially central portion of the vertically long cylindrical receiver (11) by welding or the like, while the tube sheet (12a)
Is screwed in two places at the tip. The reason why only one small mounting member (14) is used while the overall length of the receiver (11) is relatively long is to reduce the number of parts as much as possible and to reduce the manufacturing cost.

[0005]

When such a receiver mounting structure is adopted, a screw (15) provided on the mounting member (14) is used.
The mounting hole (14a) is slightly larger than the screw diameter (for example, if the screw diameter is
In the case of 5 mm, the mounting hole is generally formed to be about 5.5 mm (see FIG. 8). However, when doing so, the mounting member (14) can move within the range of the gap between the outer diameter of the screw (15) and the mounting hole (14a). When the gap between the mounting hole (14a) and the screw (15) is about 0.5 mm as described above, the mounting member (14) itself does not move so much, but the total length of the receiver (11) is smaller than that of the screw (15). Since it is much larger than the mounting pitch, especially when the mounting member (14) is tilted, both ends of the receiver (11) are largely displaced from their normal positions as shown in FIG.

For the above reasons, if there is an assembly error or if the product is subjected to strong vibration during transportation,
As shown in FIG. 8, the both ends of the receiver (11)
It easily interferes with the side plate (13a) of (13) and other components around the receiver (11). Conventionally, receiver (11)
Although a countermeasure (not shown) is attached to both ends of the above, such a problem is prevented, but from the viewpoint of cost reduction, it is preferable not to use a component such as a buffer.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem. An object of the present invention is to improve a receiver mounting structure in an air conditioner so that the receiver can be mounted around a side plate of a casing or the like. It is intended to prevent interference with other parts and to eliminate the use of cushioning material to reduce costs.

[0008]

SUMMARY OF THE INVENTION According to the present invention, a receiver is prevented from being accidentally moved by positioning a mounting member of the receiver on a tube plate of a heat exchanger.

Specifically, the solution taken by the present invention is to connect the receiver (7) to the tube sheet (31c) of the heat exchanger (3) via an attaching member (8) fixed to the receiver (7). It is premised on the receiver mounting structure of the air conditioner to be mounted on the air conditioner. And
The mounting member (8) is connected to the tube sheet via fastening means (9) such as screws.
(31c), while having a positioning means (84) for engaging with the tube sheet (31c) to position the mounting member (8).

In the above arrangement, the positioning means (84)
It is preferable to engage with the tube sheet (31c) to inhibit the mounting member (8) from tilting.

In the above structure, the positioning means is preferably constituted by a bent piece (84) formed on a part of the mounting member (8) so as to come into contact with the end face of the tube sheet (31c).

In the above configuration, the bent piece (8
4) is preferably provided on both sides of the fastening means (9).

In the above structure, the mounting member (8)
It is preferable that the joint is attached to the tube sheet (31c) by the fastening means (9) at one point between the two bent pieces (84).

Further, the air conditioner of the present invention has a configuration in which a heat exchanger (3) and a receiver (7) attached to a tube plate (31c) of the heat exchanger (3) are provided. 7)
Is attached to the tube plate (31c) of the heat exchanger (3) via the mounting structure of each of the above-mentioned solving means.

-Action-In the above solution, the mounting member (8)
Are positioned on the tube plate (31c) of the heat exchanger (3) using fastening means (9) such as screws.
Is positioned by Therefore, the position of the mounting member (8) is securely held, so that the position of the receiver (7) is not inadvertently changed.

In particular, if the positioning means (84) is configured to engage with the tube sheet (31c) to prohibit the tilting of the mounting member (8), there is no possibility that both ends of the receiver (7) move significantly. The receiver (7) does not contact surrounding parts such as the side plate (22) of the casing (2).

Further, when the positioning means is constituted by a bent piece (84), the bent piece (84) of the mounting member (8) attached to the tube sheet (31c) by the fastening means (9) is attached to the tube sheet (31c). With a simple structure that comes in contact with the end surface, the mounting member (8) is
Is positioned.

Further, if the bent pieces (84) are provided on both sides of the fastening means (9), the mounting member (8) does not rotate in any direction about the fastening means (8). Position is more reliably maintained. In this case, the movement of the receiver (7) is surely prevented even if the fastening means (9) is provided at one place.

[0019]

According to the above solution, the mounting member (8) is positioned and fixed to prevent the position of the receiver (7) from being changed carelessly. If not, the receiver (7) is
2) and interference with other surrounding parts can be prevented. For this reason, cost reduction can be realized by eliminating the cushioning material.

In particular, if the positioning means (84) is configured so as to prevent the tilting of the receiver (7), the movement of both ends of the receiver (7) with a large displacement amount can be prevented. Even if the clearance between the components is small, it is possible to reliably prevent the components from interfering with each other.

When the positioning means is constituted by the bent piece (84), the positioning means (84) can be realized with a simple structure.
In that respect, cost can be reduced. In addition, the receiver (7) can be positioned accurately with a simple configuration.

Furthermore, if the bent pieces (84) are provided on both sides of the fastening means (9), the receiver (7) can be constructed with a simple structure.
Can be prevented from rotating in both directions, so that interference between components can be reliably prevented. Also, if the fastening means (9) is provided at one place, the number of parts can be reduced, and the cost can be further reduced.

[0023]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a front view showing a schematic device configuration of an outdoor unit (1) of an air conditioner having a receiver mounting structure of the present embodiment, and FIG. 2 is a plan view of FIG. Note that, for convenience, some devices and piping are omitted in the drawings to clearly show the features of the present invention.

As shown in the figure, the outdoor unit (1) includes an outdoor heat exchanger (3), an outdoor blower (4), a compressor (5), an outdoor electric motor in a casing (2) indicated by a virtual line. Devices such as an expansion valve (6) and a receiver (7) are arranged. Outdoor heat exchanger (3)
Although a detailed structure is not shown, it is a cross-fin coil type heat exchanger, which has a substantially L-shaped plan view and is fixed to the casing (2).

At two locations near the center of the heat exchanger (3) and at the right end, tube sheets (31a, 31b, 31c) formed in a so-called channel shape are fixed along the vertical direction. And holds a coil (not shown). The two tube sheets (31a, 31b) in the central part have fan motor mounts (4
1), a fan motor (42) and a propeller fan (43) fixed to an output shaft (not shown) of the fan motor (42) are attached to constitute an outdoor blower (4). I have.

A tube sheet (31c) at the right end of the outdoor heat exchanger (3)
A partition plate (21) is fixed to the partition plate (21).
Is connected to the front surface of the casing (2),
The inside of (2) is partitioned into two spaces (2a, 2b) that are adjacent on the left and right. The heat exchanger (3) and the outdoor blower (4) are disposed in a space (2a) on the left side of the partition plate (21), and the space (2a) communicates with the refrigerant flowing through the outdoor heat exchanger (3) and the outdoor air. It is a space for heat exchange with air. Other devices such as the compressor (5), the outdoor electric expansion valve (6), and the receiver (7) are disposed in the space (2b) on the right side of the partition (21).

The compressor (5) is fixed to the casing (2) using a fixing member (not shown). The outdoor electric expansion valve (6) is connected to a refrigerant pipe (not shown) and disposed at a predetermined position.

Next, the mounting structure of the receiver (7), which is a feature of the present invention, will be specifically described.

The receiver (7) is a vertical cylindrical receiver as shown in FIGS. 1 and 2, and is mounted on a mounting member (8) whose external shape is shown in FIG. 3 (a, b, c). It is fixed to the tube plate (31c) at the right end of the heat exchanger (3). Mounting member (8)
The base end is fixed by welding to a substantially central portion in the longitudinal direction of the receiver (7). At the center of the tip of the mounting member (8), there is formed a mounting hole (81) for passing a screw (fastening means) (9) for fixing the mounting member (8) to the tube sheet (31c). .
This mounting hole (81) is formed at only one place in the mounting member (8) and has a diameter slightly larger than the diameter of the screw (9) to be used (for example, when the diameter of the screw is 5 mm, the mounting hole is 5.5 mm).
Degree). Although not shown, screw holes for tightening the screws (9) are formed at predetermined positions in the tube sheet (31c).

As a material of the mounting member 8, a thin steel plate having a thickness of about 1.2 mm is used. And the mounting member
(8) is provided with reinforcing portions (82, 83) formed by press working so as to impart rigidity to the steel plate and prevent bending. The reinforcing portions (82, 83) are formed by elongated grooves or projections having a semicircular cross section. Specifically, the reinforcing grooves (82, 83) are provided at two locations on the base end side of the mounting member (8) on the outer side. ), And reinforcing projections (83) provided at two locations on the tip side of the mounting member (8) near the inner side.

The mounting member (8) is attached to the distal end portion of the mounting member (8) such that the mounting member (8) is positioned on both sides of the screw (9) for mounting the mounting member (8) to the tube sheet (31c). A bent piece (positioning means) (84) formed by cutting and raising both ends is provided. As shown in FIG. 4, the bent piece (84) is attached to the tube sheet (31c) by screwing the mounting member (8) to the tube sheet (31c) while the bent piece (84) is in contact with the end face of the tube sheet (31c). The mounting member (8) is formed so that it can be fixed to the tube sheet (31c) without inclining. In other words, by doing so, the mounting member (8) is held in a position where it is engaged with the tube sheet (31c), and as a result, the receiver (7) tilts as shown in FIG. Will not be
The receiver (7) is maintained in a vertically arranged state parallel to the tube sheet (8) as shown in FIG.

As shown in FIG. 1, the casing (2)
Side plate (22) is parallel to the tube sheet (31c). And
The clearance between both ends of the receiver (7) and the inner surface of the side plate (22) of the casing (2) is about 5 mm.
The mounting member (8) is dimensioned.

In the receiver mounting structure of this embodiment, the mounting member (84) of the mounting member (8) is brought into contact with the end face of the tube plate (31c) of the heat exchanger (3). Align the mounting holes (81) in (8) with the screw holes in the tube plate (31c), and screw the screws (9) into the screw holes through the mounting holes (81). In this way, although the mounting member (8) is mounted with only one screw (9), the mounting member (8) rotates in any direction about the screw (9). Fig. 5 Receiver (7)
It does not tilt like. Therefore, a slight clearance set between both ends of the receiver (7) and the side plate (22) of the casing (2) can be surely protected.

According to the present embodiment, when the mounting member (8) is mounted on the tube plate (31c) of the heat exchanger (3), the mounting member (8) is a positioning means. It is accurately positioned by the bent piece (84). Bending pieces (84) that contact the end face of the tube sheet (31c) are provided on both sides of the screw (9) so that the mounting member (8) does not tilt in any direction. Therefore, when the mounting member (8) moves, the amount of displacement increases, so the positions of both ends of the receiver (7) can be fixed securely, and even if the outdoor unit (1) receives vibrations during transportation, etc.
(7) does not come into contact with surrounding parts such as the side plate (22) of the casing (2).

As described above, in this embodiment, the receiver (7)
The positioning of the side plate (2) of the casing (2)
Despite the small clearance of about 5 mm between 2) and the receiver (7), the conventionally used cushioning material is not required and the cost can be reduced.

Further, since the positioning means is constituted by the bent piece (84) which comes into contact with the end face of the tube sheet (31c), the positioning means can be realized with a simple structure. Down becomes possible.

Further, since the bent pieces (84) are provided on both sides of the screw (7), the mounting member (8) can be connected to one screw (9).
Thus, even if the receiver (7c) is attached to the tube sheet (31c), unnecessary movement such as tilting of the receiver (7) can be prevented, so that the cost can be reduced by reducing the number of screws (9).

[0039]

Other Embodiments of the Invention The present invention may be configured as follows with respect to the above embodiment.

For example, in the above embodiment, the mounting member (8)
The bent pieces (84) are formed at two places on both sides of the front end of the sheet. However, the number of the bent pieces (84) is not limited to two, and may be one in some cases. As an example, mounting holes (81) are provided at two locations at the tip of the mounting member (8), and a bent piece (84) is provided at one location so as to be located between the two mounting holes (81). be able to.

In some cases, the mounting hole (81) may be formed at one location, and the bent piece (84) may be formed at only one location on one side. Even in this case, unnecessary operation of the receiver (7) in one direction can be reliably prevented, so that it is effective when components in the direction tend to interfere with each other. Even when the bent piece (81) is formed only at one place as described above, the length is formed as long as possible and the tube sheet (31c) is formed.
If the contact length with the end face of the receiver is increased, it is easy to fix the position with screws (9) etc. with the mounting plate (8) accurately positioned, which is also effective in preventing the position change after the receiver is mounted .

Further, the positioning means is not limited to the bent piece (84), but may be constituted by fixing another member to the mounting member (8) by welding or the like. Further, the positioning means may not have a structure in contact with the end face of the tube sheet (31c),
In short, as long as the structure is such that the position of the mounting member (8) is securely fixed by engaging with the tube sheet (31c), for example, a method in which the concave portion and the convex portion are fitted may be adopted.

The positioning means (84) includes a receiver (7)
Not only forbidden tilting of the receiver (7) but also depending on the positional relationship between the receiver (7) and surrounding components, etc.
May be configured to prevent vertical, horizontal, and horizontal translations.

Further, the mounting member (8) is not necessarily a receiver.
It is not necessary to provide at the center of (7). For example, the receiver may be provided so as to be slightly offset from the center of the receiver (7) to one of the upper and lower ends in the figure.

[Brief description of the drawings]

FIG. 1 is a front view illustrating a schematic configuration of an air conditioner including a receiver mounting structure according to an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a view showing an attachment member, wherein FIG.
(B) is a front view, and (c) is a cross-sectional view taken along line cc of (b).

FIG. 4 is a perspective view showing a main part of a receiver mounting structure.

FIG. 5 is an explanatory view showing that the receiver is positioned in a state where the receiver is mounted on the tube sheet via the mounting member.

FIG. 6 is a front view showing a schematic configuration of a conventional receiver mounting structure.

FIG. 7 is a plan view of FIG. 6;

FIG. 8 is a diagram showing a state where the receiver is tilted in the structure of FIG. 6;

[Explanation of symbols]

 (1) Outdoor unit (2) Casing (21) Partition plate (22) Side plate (2a) Internal space (2a) Internal space (3) Outdoor heat exchanger (31a) Tube sheet (31b) Tube sheet (31c) Tube sheet (4) Outdoor blower (41) Fan motor mount (42) Fan motor (43) Propeller fan (5) Compressor (6) Outdoor electric expansion valve (7) Receiver (8) Mounting member (81) Mounting hole (82 ) Reinforcement groove (83) Reinforcement protrusion (84) Bending piece (positioning means) (9) Screw (fastening means)

Claims (6)

[Claims] 1. A mounting member (8) fixed to a receiver (7).
A receiver mounting structure for an air conditioner for mounting the receiver (7) to a tube plate (31c) of a heat exchanger (3) via a connecting means (9). While being attached to the plate (31c), it is engaged with the tube sheet (31c) to
(8) A mounting structure provided with a positioning means (84) for positioning. 2. The mounting structure according to claim 1, wherein the positioning means (84) is configured to engage with the tube sheet (31c) to inhibit the mounting member (8) from tilting. 3. The mounting device according to claim 1, wherein the positioning means includes a bent piece formed on a part of the mounting member so as to come into contact with an end face of the tube sheet. Construction. 4. The mounting structure according to claim 3, wherein the bent pieces (84) are provided on both sides of the fastening means (9). 5. The mounting member according to claim 4, wherein the mounting member is configured to be mounted on the tube sheet by a fastening means at a point between the bent pieces. Construction. 6. A heat exchanger (3) and a tube sheet of the heat exchanger (3).
An air conditioner comprising: a receiver (7) attached to the heat exchanger (3); and a receiver (7) attached to the heat exchanger (3) via the attachment structure according to any one of claims 1 to 5. An air conditioner installed on the tube sheet (31c).