JPH0765784B2 - Air conditioner outdoor unit - Google Patents

Description

TECHNICAL FIELD The present invention relates to an outdoor unit for an air conditioner,
In particular, the present invention relates to an outdoor unit for an air conditioner having an improved attachment structure for an electrical equipment storage box for storing various electrical equipment.

[Prior Art] FIG. 4 is a cross-sectional view of the inside of an outdoor unit of a conventional general air conditioner shown in Japanese Utility Model Laid-Open No. Sho 60-92071 as seen from the front side, and FIG. 5 is a conventional top flow. 6 is a front view showing the inside of the outdoor unit of the air conditioner of the type, FIG. 6 is a left side view showing the inside of the outdoor unit of the air conditioner of FIG. 5, and FIG. 7 is a conventional large-sized electrical equipment storage box. FIG. 8 is a front view showing the inside of the outdoor unit of the air conditioner, FIG. 8 is a plan view of the essential parts showing the mounting portion of the electrical equipment storage box of the outdoor unit of the air conditioner of FIG. 7, and FIG. It is a right side view which shows the outdoor unit of the air conditioner.

In FIG. 4, (1) is an outer box forming the outer unit of the outdoor unit of the air conditioner, (2) is a base forming the bottom of the outdoor unit,
(3) is the outdoor unit body. (4) is the outdoor unit body (3)
A partition plate that divides the inside, (5) a propeller fan that forcibly circulates air to promote heat exchange, (6) a blower room in which the propeller fan (5) is disposed, (7)
Is a compressor for compressing the refrigerant, (8) is an electrical equipment storage box in which various electrical equipment for outdoor units are assembled and stored,
(9) is a machine room in which various devices such as a compressor (7) for an outdoor unit are arranged, and (10) is, for example, a heat generating electric part such as a power transistor which constitutes a frequency switching device. It is a radiation fin for preventing heating.

Next, in FIGS. 5 and 6, (11) is a heat exchanger that radiates or absorbs heat according to the operating state of cooling or heating of the air conditioner, and (12) is gas-liquid separation in the refrigerant pipe. An oil separator to be performed, (13) an accumulator for smoothing the flow of the refrigerant, (14) a ball valve for connecting the refrigerant pipe, and (15) a predetermined space formed at the back of the radiating fin (10). is there. The electric equipment storage box (8) has a hinge structure at the left end, and has a door-type opening / closing structure.

The outdoor unit of this type of air conditioner is a top flow type that sucks air through a heat exchanger (11) by a propeller fan (5), and is an air conditioner for Mitsubishi Electric buildings "City Multi PUHS (or PUHF ) Series ”and is publicly known.

Further, in FIG. 7, FIG. 8 and FIG. 9, (1a) is a service panel mounted on the outer box (1) of the installation part of the electrical equipment storage box (8), and inside the machine room (9) It has a structure that can be removed for maintenance and inspection of various devices. The right end of the electrical equipment storage box (8) of this outdoor unit has a hinge structure, and has a door-type opening / closing structure. The outdoor unit of this type of air conditioner is the Mitsubishi Electric packaged air conditioner “Mr. Slim Demand Inverter Multi PUHMZ80AK
(Or PUHMZ105AK) ”and is publicly known.

The outdoor unit of the conventional air conditioner has the structure as described above, and the inside of the outdoor unit body (3) is divided into a blower room (6) and a machine room (9), and the machine room (9) is An electric equipment storage box (8) is installed in the bracket.

[Problems to be Solved by the Invention] In the conventional outdoor unit for an air conditioner as described above, the electrical equipment storage box (8) is fixed in the machine room (9), and the electrical equipment storage box ( In order to ensure the ease of maintenance and inspection in 8), the depth was limited. For this reason, the arrangement in the machine room (9) has to be a relatively useless arrangement.

That is, the electrical equipment storage box (8) is replaced with the oil separator (1
2) and the accumulator (13) and the like, when they were arranged side by side next to each other, a useless space (15) was formed in the rear part (see FIGS. 5 and 6). Further, in the case of a large electrical equipment storage box (8), the electrical equipment storage box (8) needs to be arranged near the outer box (1), and the oil separator (12) and the accumulator (13) are required. ), Etc., are arranged on the back of the electrical equipment storage box (8),
The workability was also poor because it was necessary to remove the electrical equipment storage box (8) each time when installing or performing maintenance on these various devices (Figs. 7, 8, and 9). (See Figure 9).

On the other hand, Japanese Utility Model Laid-Open No. 56-27568 discloses an outdoor unit of an air conditioner provided with a partition plate. Further, Japanese Utility Model Laid-Open No. 58-150716 and Japanese Utility Model Laid-Open No. 59-42078 disclose an electric equipment unit of an air conditioner in which an electric equipment unit and the like can be taken out freely.

The technology disclosed in Japanese Utility Model Laid-Open No. 56-27568 requires the opening of the electrical equipment accommodation section, the sequential removal of various electrical components in front, and the removal of the internal electrical components during maintenance and inspection. Maintenance of electric parts in deep positions took time and effort to take out the electric parts, resulting in poor workability. Also, Japanese Utility Model Publication No. 58-150716 and Japanese Utility Model Publication No. 59
Japanese Patent Laid-Open No. 42078 does not disclose the electrical connection process, which is important even when the electrical unit is taken out.

Therefore, according to the present invention, the depth of the electrical equipment storage box can be effectively used, and the maintenance and inspection of the electrical equipment storage box and the various equipments in the machine room can be easily performed, and the heat dissipation efficiency is good. The challenge is to provide an outdoor unit for an air conditioner.

[Means for Solving the Problem] An outdoor unit of an air conditioner according to the present invention is configured such that various equipment in a machine room and an electric equipment storage box having a heat radiation fin located outside are partitioned by a partition plate, and the electric equipment On the front side of the equipment storage box, the electrical parts and power supply terminal block required for maintenance and inspection are placed.The storage part for the electrical parts required for maintenance and inspection is a door-type opening / closing mechanism, and the power supply terminal block is fixed to the outdoor unit body. The electric equipment accommodating box can be separated from the electric equipment accommodating box as it is, and the radiation fins are arranged outside the electric equipment accommodating box.

[Operation] In the outdoor unit of the air conditioner according to the present invention, the electrical equipment housing box is partitioned from other equipment, and the electric equipment
The parts that are frequently used during inspections and servicing are installed on the front side, and the electrical parts inside are handled by opening and closing the front electrical components, so the electrical equipment storage box Can be formed in a deep shape, and the maintenance and inspection of the electric equipment storage box can be facilitated. Further, various devices in the machine room and the electric equipment storage box can be arranged appropriately. Moreover, the heat radiation fins are arranged outside the electric equipment housing box to enhance the cooling ability of the electric parts.

[Embodiment] FIG. 1 is a front view showing the inside of an outdoor unit of an air conditioner according to an embodiment of the present invention, and FIG. 2 is a left side view showing the inside of an outdoor unit of the air conditioner of FIG. FIG. 3 is an exploded perspective view showing an electric equipment storage box mounted in the outdoor unit of the air conditioner of the present invention. In the figure, the same reference numerals and symbols as those of the conventional example indicate the same or corresponding components as those of the conventional example, and thus the description thereof will be omitted here.

In FIG. 1 and FIG. 2, (16) is a rail for pulling out the electric equipment storage box (8), and the electric equipment storage box (8) slides on the upper surface of the pull-out rail (16). Move.
The outdoor unit of the air conditioner of this embodiment is an outdoor unit of a top flow type air conditioner corresponding to the conventional example of FIGS. 5 and 6.

Here, the structure of the electrical equipment storage box (8) of this embodiment will be described in detail.

In FIG. 3, (17) is a base that constitutes the bottom surface of the electrical equipment storage box (8), and the left and right ends are rails (1
6) It is slidable inside. (18) is a right side plate of the electrical equipment storage box (8), similarly, (19) is a left side plate of the electrical equipment storage box (8), and (20) is located in front of the electrical equipment storage box (8). The front electrical components that can be opened and closed by the hinge structure, (21) is the terminal block plate that is screwed on the right side plate (18) at the rear, and (22) is the terminal block plate (2
The screwed part of 1) and (23) are power supply terminal blocks mounted on the terminal block plate (21). Reference numeral (24) is a heat generating electric component such as a power transistor mounted on the rear surface of the electric equipment housing box (8), and a heat radiation fin (10) for dissipating the heat generated there is arranged in the rear portion. .
Reference numeral (25) is an electric component arranged on the base (17) of the electric equipment accommodating box (8), and (26) is a cover for covering the upper part of the electric equipment accommodating box (8). Of course, the radiation fins (10) that dissipate the heat generated from the heat-generating electric components such as power transistors mounted on the rear surface of the electrical equipment accommodation box (8) are the electrical equipment accommodation box (8). It is not limited to the rear surface, but may be disposed on the side surface.

The outdoor unit of the air conditioner of this embodiment is configured as described above, and the electric equipment storage box (8) has a deep depth and is a structure that can be pulled out.

Therefore, unlike the conventional case, the useless space (15) is not formed at the back of the electrical equipment storage box (8), and the full depth of the machine room (9) can be effectively utilized. Moreover, the maintenance and inspection work of various electric equipments in the electric equipment storage box (8) can be performed very easily. For example, by replacing the electric component necessary for construction, inspection and service with the front electrical component (20) on the front side of the electrical component storage box (8), the service panel (1a) is removed, and the front electrical component (20) is removed. This is because the above-mentioned various operations can be performed only by opening the).

Further, by using the front electrical component (20) as a door-type opening / closing mechanism, maintenance and inspection of the electrical components (25) on the base (17) in the electrical component storage box (8) can be easily performed.

Furthermore, by pulling out the entire electrical equipment storage box (8), maintenance and inspection of the heat-generating electric components (24) and the like arranged on the back surface of the electrical equipment storage box (8) can be facilitated. When the electrical equipment storage box (8) is slid, the terminal block plate (21) on which the power supply terminal block (23) is installed is separated from the electrical equipment storage box (8), and the outdoor unit is removed. It remains fixed to the body (3). Therefore, since the wiring and connection for the power supply can be left as they are, no tension is applied to the wiring and connection by sliding the electric equipment housing box (8),
Does not affect wiring or wiring.

Particularly, the electrical connection between the electrical system parts of the electrical equipment accommodation box (8) and the power supply terminal block (23) is a means for attaching and detaching the electrical equipment accommodation box (8) to and from the power supply terminal block (23). Alternatively, when the electric equipment storage box (8) is moved, the electric system parts of the electric equipment storage box (8) and the power supply terminal block (2
The electrical connection in 3) may be released.

In addition, since the electrical equipment storage box (8) is mounted in the machine room (9) with the partition plate (4) interposed therebetween, it can be installed in various equipment such as the oil separator (12) and the accumulator (13). Maintenance and inspection work can be done easily.

The partition plate (4) for carrying out the present invention can be applied to both or one of the case of partitioning in the vertical height direction and the case of partitioning in the left-right width direction. Particularly, in FIG. 1, a partition plate (4) for partitioning in the vertical direction and a partition plate (4) for partitioning in the left-right width direction are provided.

As described above, in the outdoor unit of the air conditioner of this embodiment, the various equipment and the electrical equipment storage box (8) in the machine room (9) can be arranged appropriately, and the useless space (15) is provided. Etc. can be eliminated and the inside of the machine room (9) can be effectively utilized.

By the way, although the top flow type air conditioner has been described in the above embodiment, it is naturally applicable to an outdoor unit of an air conditioner other than this type.

[Effects of the Invention] As described above, the outdoor unit of the air conditioner according to the present invention partitions the electrical equipment housing box from other equipment, and is a frequently used part of the electrical equipment during construction, inspection, and service. The front side of the electrical component is a door, and the electrical components inside are openable by opening and closing the door, allowing the electrical equipment storage box to have a deep shape. Maintenance and inspection inside the storage box can be done easily, and various equipment and electrical equipment storage box inside the machine room can be arranged appropriately, so various workability is improved and waste space in the machine room, etc. It is possible to effectively utilize the inside of the machine room. Further, since the radiation fins are arranged outside the electric equipment housing box, the cooling capacity of the electric parts can be enhanced.

[Brief description of drawings]

FIG. 1 is a front view showing the inside of an outdoor unit of an air conditioner according to an embodiment of the present invention, FIG. 2 is a left side view showing the inside of an outdoor unit of the air conditioner of FIG. 1, and FIG. FIG. 4 is an exploded perspective view showing an electric equipment housing box mounted on an outdoor unit of an air conditioner of the invention, FIG. 4 is a cross-sectional view showing the inside of an outdoor unit of a conventional general air conditioner as seen from the front side, FIG. 5 is a front view showing the inside of an outdoor unit of a conventional top flow type air conditioner,
FIG. 6 is a left side view showing the inside of the outdoor unit of the air conditioner shown in FIG. 5, and FIG. 7 is a front view showing the inside of the outdoor unit of the air conditioner equipped with a conventional large-sized electrical equipment housing box. FIG. 8 is a plan view of a main part showing a mounting portion of an electric equipment housing box of the outdoor unit of the air conditioner of FIG. 7, and FIG. 9 is a right side view of the outdoor unit of the air conditioner of FIG. . In the figure, 3: Outdoor unit main body, 4: Partition plate 5: Propeller fan, 6: Blower room 8: Electrical equipment storage box, 9: Machine room 10: Radiating fins, 20: Front electrical component 23: Power terminal block Is. In the drawings, the same reference numerals and symbols indicate the same or corresponding parts.

Claims (1)

[Claims] 1. A machine room (9), which is formed separately from the blower room (6), is partitioned by various devices and a partition plate (4) in the machine room (9), and is installed so as to be drawn out. And an electric equipment storage box (8) and a power supply terminal block (which is fixed to the outdoor unit body (3) even when the electric equipment storage box (8) is pulled out from the machine room (9) ( 23), a front electrical component part (20) located on the front side of the electrical equipment storage box (8) and opened and closed like a door, and the outside of the electrical equipment storage box (8) An air conditioner outdoor unit comprising: a heat radiation fin (10) located at