JP3009045U - Air conditioner outdoor unit - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the size of the outdoor unit of an air conditioner and to save installation space. [Structure] In an outdoor unit of an air conditioner, a connection valve for connecting a refrigerant pipe to be connected to the indoor unit is arranged at an upper portion, and the outdoor unit is configured in a substantially square shape when viewed from the front. . [Effect] There is no overhang of the connection valve on the side of the outdoor unit, and the outdoor unit can be configured in a substantially square shape. Since the connection valve does not travel on the side, installation space can be saved. There is no need to worry about the size of the space required for work, and the side of the outdoor unit can be installed close to the building.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an outdoor unit of an air conditioner including an indoor unit and an outdoor unit connected to the indoor unit by a refrigerant pipe, and particularly to connecting a refrigerant pipe connected to the indoor unit. The present invention relates to an outdoor unit that is compact and has a small space for installation by arranging the connection valve at the upper part and configuring the outdoor unit in a square shape of a substantially square shape when viewed from the front.

[0002]

[Prior art]

 There is a strong demand for downsizing outdoor units of air conditioners, and products that have been devised to be downsized have been developed to date. However, in the outdoor unit of the conventional air conditioner, a connection valve for connecting the refrigerant pipe is usually provided on the lower side surface.

Usually, an outdoor unit of an air conditioner includes a compressor for compressing a cooling medium and a refrigerating cycle including a heat exchanger and the like, and the refrigerating cycle includes an indoor unit side and a refrigerant pipe. The blower is installed to achieve air cooling for the heat exchanger, and a decorative cover is attached to the front side of the blower. The refrigerant pipe is connected to the lower side surface side of the outdoor unit. Conventional examples include JP-A-5-256475 and JP-A-5-133571.

Further, there is JP-A-5-133596 as an example in which the arrangement of electrical components is devised to reduce the size of the outdoor unit.

[0005]

[Problems to be solved by the device]

 In the conventional outdoor unit, the side is provided with a connection terminal for connecting the overhanging refrigerant pipe. Therefore, this side is added to the overhanging part (50 to 100 mm) of the connecting terminal from the building etc. Since the work space to be connected must be installed separately, it was necessary to separate them by 200 mm or more, which occupied a large installation space. Also, in the sales process, the protruding part of the connection valve deteriorated the design of the main body, and the packaging size increased accordingly.

Furthermore, since the position of the connection valve is provided on the lower side surface, the workability is poor because the refrigerant pipe is seated and the body is curled up when the refrigerant pipe is attached to or detached from the connection valve.

The present invention relates to an outdoor unit of an air conditioner, and by devising the arrangement of a connection valve for connecting a refrigerant pipe connected to the indoor unit, the outdoor unit is configured in a substantially square shape. However, it is intended to save the space for installing the outdoor unit and facilitate the connection work of the refrigerant pipes.

[0008]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention relates to an outdoor unit of an air conditioner connected to an indoor unit by a refrigerant pipe, in which a base forming a lower surface of the outdoor unit and upper and lower and front directions of the indoor unit are provided. It is opened and is shaped like a U-shape so as to substantially cover the other three surfaces, and is attached to the base, and about the horizontal axis in the space surrounded by the heat exchanger. The rotatably arranged blower and the compressor mounted horizontally on the base in a direction orthogonal to the horizontal rotation axis of the blower in the space surrounded by the heat exchanger, and the heat exchanger. To connect the electrical component box containing the electrical components, which is arranged on one side of the upper open surface, facing the upper open surface, and the refrigerant pipe, which is arranged on the other side of the heat exchanger facing the upper open surface, on the other side. With the refrigerant pipe connection valve of the blower If the diameter is Dmm, the height of the outdoor unit is Hmm, the width is Wmm, and the height of the rotation axis of the blower is H1mm, the relationship of “1.5D ≦ W ≦ 1.7D” and “0.6H The outdoor unit was formed into a substantially square shape when viewed from the front by being configured so as to satisfy the relationship of ≦ H1 ≦ 0.8H ”.

[0009]

According to the present invention, by the above means, the outdoor unit is formed in a substantially square shape so that the connecting valve does not travel on the side surface, and the space for the refrigerant piping work is not required on the side surface of the outdoor unit. Therefore, the entire design can be made into a rectangular parallelepiped to provide a neat design, and the installation space can be saved and the size is small, and even if the outdoor unit is installed near a building, the refrigerant piping There is no effect on connection work.

[0010]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is the outdoor unit of the air conditioner. The outdoor unit 1 is connected to the indoor unit with a refrigerant pipe to form an air conditioner. As shown in FIGS. 1 to 5, the outdoor unit 1 includes devices such as a compressor 2, a heat exchanger 3, a blower 8 and the like, and sucks air from the back surface and both side surfaces of the heat exchanger to exchange heat. This is a structure in which the air that has undergone heat exchange in the vessel is blown out from the front.

That is, the base 4 has the heat exchanger 3 which is open to the upper and lower sides and the front side and has a heat exchange surface formed in a U shape on both side surfaces and a back surface. The compressor 2 and the blower 8 are arranged in a space 3z formed by the heat exchanger 3, and a valve fixing plate 10 having a connection valve 11 is arranged on the upper right side of the heat exchanger 3 and the valve fixing plate 10 A heat exchanger mounted on the base 4 with an electrical component box 9 in which electrical components (not shown in detail) are installed on the left side in the horizontal direction, and which is attached to form a square shape of the outdoor unit as a whole when viewed from the front. Position both sides of the decorative cover 5 so as to cover both side surfaces of the base plate 3, attach the lower ends of the decorative cover 5 to the side surface portion and the front surface portion of the base 4, and fix the upper end of the side surface of the decorative cover 5 to the valve. Attach to the right end of the plate 10 with screws . The top cover 6 is attached to the decorative cover 5 attached as described above so as to cover the top surface 3a of the heat exchanger 3, the electrical component box 9, and the connection valve 11.

With the above configuration, the outdoor unit 1 is achieved to have a substantially square shape. That is, the equipment such as the heat exchanger 3, the compressor 2, the blower 8, the electric component box 9, and the valve fixing plate 10 with the connection valve 11 is installed within the flat area of the base 4, and the installation space of the outdoor unit 1 is installed. It forms a box-shaped body that is almost rectangular parallelepiped with no partial protrusion that affects the. As an embodiment of the present invention, an embodiment in which the electric component box 9 and the connection valve 11 are arranged above the upper end surface 3a of the heat exchanger 3 is shown, but the present invention is not limited to this arrangement. Instead, it is also possible to adopt a configuration in which the heat exchanger is formed high in the height direction, the electric component box 9 and the connection valve 11 are arranged in the space of the heat exchanger 3, and are attached to the upper ends thereof. (Not shown).

As shown in FIGS. 4 and 6, the heat exchanger 3 is formed by bending a flat plate heat exchanger into a U-shape to form a space portion 3z inside, and the refrigerant pipe 3e and the side plate. The side plate 3b is provided with screw holes 3c and 3d at its lower and upper ends. Although such a shape of the heat exchanger itself is not new, it is for the purpose of the present invention that the heat exchange effective areas on the left and right side surfaces formed in a U-shape can be made sufficiently wide. In particular, the reason why the right side surface of the heat exchanger can be widely used as a heat exchange surface is because of the arrangement configuration of each device of the present invention.

Reference numeral 4 denotes a base on which the compressor 2 and the heat exchanger 3 are directly placed, and although not shown in detail, it has legs for installation and a flange portion formed by raising the periphery. A screw hole 3c at the lower end of the side plate 3b of the heat exchanger and a lower end of the decorative cover 5 are screwed to the flange portion. Further, a supporting member 20 (see FIG. 4, not shown in detail) for rotatably supporting the blower 8 is screwed to the base 4.

The decorative cover 5 is arranged on the front surface and both side surfaces of the outdoor unit 1 and covers the devices built in the outdoor unit 1. As shown in FIGS. 7 to 9, the decorative cover 5 has an air blowing grill 5a having a large number of holes in the center of the front surface and an air intake grill having a large number of holes on both side surfaces. 5b and 5g are provided at positions facing both side surfaces of the heat exchanger 3. The lower end is formed with a screw hole 5c for screwing the screw hole 4c of the base 4, the upper end is formed with screw holes 5d and 5e and a hole 5f, and the handle 16 is formed to project from the upper end of the left side surface. Has been done. The right side does not have a handle so as not to interfere with the valve connection work. The handle 16 is formed so as to be located approximately in the middle of the depth of the outdoor unit 1. Reference numeral 19 denotes a partition plate having a mouth ring for partitioning the suction side and the blowing side of the blower, which can be attached to the heat exchanger 3 or the decorative cover 5.

Reference numeral 6 denotes a top cover, and the base 4 and the decorative cover 5 constitute a box body of the outdoor unit 1. A handle 17 is formed on the right side surface of the top cover 6, and is used together with the left side handle 16 formed on the makeup cover 5 when the outdoor unit is transported. Further, the rear surface of the upper surface cover 6 has an inclined surface 6a which is inclined about 17 degrees from the vertical surface over the entire width in the rear surface direction, and a cutout portion 6e through which the refrigerant pipe 12 is inserted in a part of the inclined surface 6a. Is formed. As a result, the refrigerant pipe 12 can be laid horizontally along the inclined surface 6a.

As shown in FIG. 5, a space 7 having a height dimension h is provided between the top cover 6 and the top surface 3 a of the heat exchanger 3. In this space 7, an electric component box 9 and a connection valve 11 attached to a valve fixing plate 10 are housed. The electrical component box 9 and the connecting valve 11 are arranged in the space 7 side by side in the horizontal direction. The height dimension h of the space 7 is set to be slightly larger than the height dimension of the electrical component box 9 or the connection valve 11.

Further, the size of the electric component box 9 in the width direction is 3/4 of the width dimension in the front direction when the heat exchanger 3 is installed, and the dimension in the depth direction is the heat exchanger. It is almost the same size as the depth dimension of 3. Reference numeral 10 denotes a valve fixing plate made of a metal plate, which is approximately 1/4 of the width dimension of the heat exchanger 3 in a state where the overlapping portion with the electric component box 9 is removed and is formed by drawing. (Not shown in detail).

Reference numeral 11 is a connection valve, and a refrigerant pipe 12 connected to the indoor unit is connected to the connection valves 11 a and 11 b so that the indoor unit and the outdoor unit 1 constitute a refrigeration cycle. The connection valve 11 penetrates the valve fixing plate 10, and the refrigerant pipe 14 or the refrigerant pipe 15 is connected to the lower end portion thereof. The connecting valve 11 is attached so as to be orthogonal to the inclined portion of the convex portion formed by squeezing the valve fixing plate 10 so that the side surface side of the heat exchanger 3 becomes lower as described above. Therefore, when the tool 13 is applied to the cap nuts 11c of the connection valves 11a and 11b, the tool 13 does not interfere with the side end of the electrical component box 9. Of course, at this time, the mounting height dimension of the connecting valves 11a and 11b with respect to the inclined portion is also set. In other words, the connecting valves 11a and 11b are too close to each other so that the use of the tool is not interfered with, and the flare nut of the refrigerant pipe 12 is connected to the conduit portion of the connecting valve when the refrigerant pipe 12 is connected to the tool. Use to set the position so that it can be rotated.

Reference numeral 14 is a suction pipe, one end of which is connected to the preceding connecting valve 11a and the other end of which is connected to a pipe on the compressor 2 side, and 15 is a discharge pipe. These pipes 14 and 15 are connected to the refrigerant pipe connecting portion 11g of the connecting valves 11a and 11b in a direction orthogonal to the inclined portion of the valve fixing plate 10. Reference numerals 14a and 15a denote bent portions provided midway from the rising pipe portions of the pipes 14 and 15 to the inclined connection portions, and the role of the bent portions 14a and 15a is to absorb local stress. Further, this bent portion allows the tubes 14 and 15 to be attached in a direction orthogonal to the inclined portion of the valve fixing plate 10.

Next, how the present invention constructs a square outdoor unit having a substantially square shape when viewed from the front will be described in more detail. In the embodiment realized by the present invention, the dimensions of the outdoor unit as viewed from the front are substantially square with a width of 595 mm and a height of 597 mm. In this way, the points to be devised to make the outdoor unit square-shaped are the placement position and placement interval of each device installed in the outdoor unit.

In the present invention, specifically, the respective devices are arranged in the outdoor unit in the arrangement relationship shown in FIGS. 12 and 13. That is, as described above, the respective devices are arranged inside the space 3z of the heat exchanger 3 formed in a U shape shown by cross-section hatching in order to effectively use the space.

First, the decorative cover 5 that determines the outer dimensions of the outdoor unit is arranged near the outer periphery of the heat exchanger 3. The width dimension at that time is determined by the diameter of the blower that obtains the air volume necessary for heat exchange, as described later. At that time, the blower 8 is arranged at a substantially central portion in the width direction of the outdoor unit 1. In this embodiment, the blower 8 is arranged substantially at the center in the width direction of the outdoor unit 1, but in consideration of its existence in the piping part arrangement band described later, it can be further downsized if it is arranged to the left in the width direction. Becomes Next, the compressor arrangement zone 2z is secured in the space 3z of the heat exchanger 3 and below the blower 8. Furthermore, the electrical component box arrangement zone 9z and the connection valve arrangement zone 11z are arranged above the space 3z of the heat exchanger 3. Then, finally, the pipe arrangement zone 14z is arranged inside the space 3z of the heat exchanger 3 and on the side of the blower 8. With this configuration, the outdoor unit can be configured within the vertically projected area of the space 3z of the heat exchanger 3. FIG. 13 shows in detail the positional relationship between the compressor 2 and the rising pipes 14 and 15. As an embodiment of the present invention, an embodiment in which the electrical equipment box arrangement zone 9z and the connection valve arrangement zone 11z are arranged above the upper end surface 3a of the heat exchanger 3 is shown. However, the heat exchanger is not limited to this, and the arrangement zone 9z and the connection valve arrangement zone 11z are arranged in the space 3z of the heat exchanger 3 by forming the heat exchanger high in the height direction, and at the upper end 3a thereof. It is also possible to adopt a mounting structure (not shown).

As a concrete example of the arrangement relationship of these devices, in the case of a blower having a diameter of 370 mm, the arrangement and positional relationship shown in FIGS. 12 and 13 are preferable for downsizing the outdoor unit. That is, when the diameter of the blower 8 is 370 mm, the compressor placement zone 2z needs to be about 145 mm and the electrical equipment box placement zone 9z needs to be about 70 mm in the height direction of the outdoor unit. Further, the fin height of the heat exchanger 3 is required to be about 35 mm and the rising pipe arrangement zone 14z is required to be about 25 mm in the width direction of the outdoor unit. By arranging each device in this way and securing a gap necessary to prevent excessive resistance to the air flow generated by the blower, the height and width dimensions of the outdoor unit 1 become about 600 mm, and the blower 8 It is preferable that the center of rotation is located at a substantially central position in the width direction and slightly higher than the central part in the height direction.

In a mutual relationship, when the diameter of the blower 8 is Dmm, the height dimension of the outdoor unit 1 is Hmm, the width dimension is Wmm, and the height of the rotation axis of the blower 8 is H1mm, 1. It is desirable to determine the arrangement band of each device so as to satisfy the relationship of 5D ≦ W ≦ 1.7D and 0.6H ≦ H1 ≦ 0.8H.

FIG. 14 is a comparative diagram showing that the outdoor unit of the present invention requires a smaller installation area than the conventional outdoor unit. (A) is a conventional model and (b) is an improvement. FIG. 3 is a plan view showing the installed state of the outdoor unit of the present invention, model (c). Each of FIG. 14 shows the required installation space for installing the outdoor unit by the required front-rear, left-right spacing and area, and in the case of the conventional model of (a), about 1 m ² (9308 cm ² ), The improved model of (b) is about 0.5 m ² (4577 cm ² ), and the invention of (c) is about 0. It is 4 m ² (3995 cm ² ), which shows how small the installation area of the present invention is.

In particular, in the present invention, the gap size on the side where the refrigerant pipe is discharged is also 10 cm, which is half of 20 cm of the improved model, as compared with the improved model. In addition, the rear clearance between the outdoor unit and the building wall is 5 cm, which is the same as the improved model. The size of the left-right clearance is larger than the size of the rear clearance because the air flowing into the clearance of the left-right clearance also flows into the back side.

As described above, since the outdoor unit according to the embodiment of the present invention does not have the connecting valve that projects to the side surface, the dimension in the width direction is reduced accordingly. That is, the size of the embodiment of the outdoor unit 1 of the present invention is 595 mm, and the size of 695 mm, which is 100 mm of the gap size l1, is added to the size of 700 mm to 800 mm, which is the size between the balcony and the window of a general house. Since it is small, it can prevent the windows of the building from being blocked, and since the depth of a typical veranda is 800 mm, it can be installed in the depth direction of the veranda.

As described above, in the embodiment, since the connecting valve does not travel on the side surface, the space for installation can be saved, and the external appearance can be made into a rectangular parallelepiped, so that the design to be integrated with the building is easy. .

[0030]

[Effect of device]

 As described above, the present invention has a configuration in which the connection valve is provided on the upper surface side of the outdoor unit, so that the outdoor unit is configured in a substantially square shape without the connection valve overhanging on the side surface. Since the connecting valve is not traveling on the side as in the past, the installation space can be saved and there is no need to worry about the size of the space required for the work.Install the side of the outdoor unit close to the building. Can be done.

[Brief description of drawings]

FIG. 1 is a sectional front view of a main part of an outdoor unit.

FIG. 2 is a left side view of the cross section of the main part of the outdoor unit.

FIG. 3 is a top view of a main portion showing a detailed connection portion of a refrigerant pipe.

FIG. 4 is an exploded perspective view showing the arrangement of each device of the outdoor unit.

FIG. 5 is an enlarged main-portion cross-sectional view of the upper right portion of the outdoor unit.

FIG. 6 is a perspective view showing a simplified heat exchanger.

FIG. 7 is a perspective view of the makeup cover as viewed from the upper left.

FIG. 8 is a detailed front view of the makeup cover.

FIG. 9: Detail left and right side view of the makeup cover

FIG. 10 is a perspective view and a side view of the top cover seen from the upper right.

FIG. 11 is a front view of the outdoor unit of the present invention.

FIG. 12 is an arrangement band configuration diagram of each device when the outdoor unit is viewed from the front.

[Fig. 13] Detailed layout of rising refrigerant piping

[Figure 14] Comparison diagram of installation spaces

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Outdoor unit main body, 2 ... Compressor, 3 ... Heat exchanger, 3a ... Upper end surface, 3z ... Space part, 4 ... Base, 5 ... Decorative cover, 6
... Top cover, 8 ... Blower, 9 ... Electrical component box, 10 ... Valve fixing plate, 11 ... Connection valve, 12 ... Refrigerant piping, 13 ...
Tool, 14 ... Suction pipe, 14a ... Bent portion, 15 ... Discharge pipe,
Reference numeral 15a ... Bent portion, 16 ... Transport handle, 17 ... Transport handle, 19 ... Partition plate with mouth ring, 20 ... Support frame

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Susumu Kashiwazaki 4-6, Surugadai Kanda, Chiyoda-ku, Tokyo Inside Hitachi, Ltd.

Claims (4)

[Scope of utility model registration request] 1. In an outdoor unit of an air conditioner connected to an indoor unit by a refrigerant pipe, a base that constitutes a lower surface of the outdoor unit, and an opening in the vertical direction and the front direction of the indoor unit. A heat exchanger that is formed in a U shape so as to substantially cover the surface and is attached to the base, and is rotatably arranged around a horizontal axis in a space surrounded by the heat exchanger. A blower, a compressor that is also installed in the space surrounded by the heat exchanger in a direction orthogonal to the horizontal rotation axis of the blower, and horizontally attached to the base, and an upper opening of the heat exchanger. An electrical component box containing electrical components arranged on one side opposite to the surface and for connecting the refrigerant pipe arranged on the other side facing the upper open surface of the heat exchanger. Equipped with a refrigerant pipe connection valve, blower , Dmm, the height of the outdoor unit is Hmm, the width is Wmm, and the height of the rotating shaft of the blower is H1mm, 1.5D ≦ W ≦ 1.7D and 0.6H ≦ H1 ≦
An outdoor unit for an air conditioner, characterized in that the outdoor unit has a substantially square shape when viewed from the front by being configured to satisfy the relationship of 0.8H. 2. An electric component box containing an electric component and a refrigerant pipe connection valve are arranged in a space surrounded by a heat exchanger, and are attached to an upper end surface of the heat exchanger. The outdoor unit of the air conditioner according to claim 1. 3. The outdoor unit for an air conditioner according to claim 1, wherein the electrical component box containing the electrical components and the refrigerant pipe connection valve are arranged above the upper end face of the heat exchanger. 4. An outdoor unit of an air conditioner connected to an indoor unit by a refrigerant pipe, comprising: a base forming a lower surface of the outdoor unit; and a heat exchanger attached to the base. The exchanger is opened in the vertical direction and the front direction of the indoor unit, and is molded into a U shape so as to substantially cover the other three surfaces to form a space inside, and is surrounded by the heat exchanger. A blower rotatably arranged around a horizontal axis is arranged in the enclosed space, and in the same space surrounded by the heat exchanger, the blower is orthogonal to the horizontal rotation axis of the blower, and A compressor arrangement zone for mounting the compressor horizontally with respect to the base is formed below the blower, and the compressor is provided on the side of the blower in the space surrounded by the heat exchanger. For transferring the refrigerant from A refrigerant pipe arrangement zone for mounting the ascending refrigerant pipe in a substantially vertical direction is formed, and an electric component box in which electrical components are installed facing the upper open surface of the heat exchanger and a refrigerant pipe connection for connecting the refrigerant pipe The electrical component box arrangement zone and the connection valve arrangement zone for arranging the valves are arranged side by side, and the diameter of the blower is Dmm, the height dimension of the outdoor unit is Hmm, the width dimension is Wmm, and the rotation axis center of the blower is the height. Is H1 mm, 1.5D ≦ W ≦ 1.7D and
An outdoor unit for an air conditioner, characterized in that the outdoor unit has a substantially square shape when viewed from the front by being configured so as to satisfy the relationship of 0.6H ≦ H1 ≦ 0.8H.