JPH08189672A - Outdoor machine for air-conditioner - Google Patents

Abstract

PURPOSE: To provide the outdoor machine of an air-conditioner which is constituted to perform waterproofing and cooling of a reactor without using a member, such as an extra cover, even when a reactor is arranged separately from other electrical equipments to form the outdoor machine in a compact manner, resulting in reduction of a cost. CONSTITUTION: A reactor 5 is arranged on the machine room 11 side of the upper end part of a partition plate 4 by which the interior of a casing is partitioned into a blast chamber 10 and a machine room 11. A draft duct 6 through which the machine room 11 and the blast chamber 10 are connected with each other is provided, and an opening 6a on the machine room side is arranged in the vicinity of the upper part of the reactor 5. The draft duct 6 has a heat absorbing passage 7 extending along the back of the reactor 5 and opened downward at the blast chamber 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outdoor unit for an air conditioner.

[0002]

2. Description of the Related Art In an electric equipment box in an outdoor unit of an air conditioner, the arrangement of reactors which generate a large amount of heat among electric equipment is prioritized. Therefore, the arrangement of other electric components and other devices in the casing is restricted, which hinders downsizing of the outdoor unit.

As a solution to this problem, an outdoor unit for an air conditioner described in JP-A-6-281203 can be cited. FIG. 7: is a perspective view which cuts and shows a part of main part of this outdoor unit. In this outdoor unit, when the fan 36 operates, a part of the inflowing air reaching the heat exchanger 35 flows under the heat exchanger 35 and passes through the bypass passage 41, and then the partition wall 39 and the cover 38. First opening 4 of the reactor storage space formed by
2 is guided by the cooling air guide 40. Then, the inflowing air whose flow has been changed upward thereafter collides with the reactor 37 and effectively cools it. Then, after cooling, it flows out from the second opening 43 between the storage chambers and is blown out of the casing together with the air that has passed through the heat exchanger 35. In FIG. 7, reference numeral 44 is a relay harness for the reactor 37, and 45 is an opening for passing this harness.

In the outdoor unit of the air conditioner as described above, since the reactor 37 is arranged separately from other electric components,
The restrictions on the arrangement of other electric components and devices in the casing are eased, and the outdoor unit can be made compact.

[0005]

Generally, in an outdoor unit of an air conditioner, rainwater or the like enters from a blowout opening in front of a fan through a blowout grill, or from a rear side and a side of a casing through a heat exchanger. . Therefore, in the outdoor unit of the above-mentioned conventional example, it is necessary to install the cover 38 in order to prevent the reactor 37 from getting wet with water due to the water spray. In addition, the cover 38 prevents the air that has passed through the heat exchanger 35 and has a temperature higher than the outside air temperature from directly colliding with the reactor 37 when the air conditioner is used, thereby reducing the cooling effect. Was also needed. for that reason,
In the conventional example, there is a problem that the number of parts is increased due to the downsizing of the outdoor unit, which is one of the causes of increasing the cost.

The present invention has been made in order to solve the above-mentioned conventional drawbacks, and an object thereof is to dispose a reactor separately from other electric components in order to make an outdoor unit compact. It is an object of the present invention to provide an outdoor unit for an air conditioner, which can waterproof and cool the reactor without using a separate member such as a cover, thereby achieving cost reduction.

[0007]

In the outdoor unit for an air conditioner according to claim 1, therefore, a blower chamber 10 having a fan 3 and a heat exchanger 2, a machine chamber 11 and a casing 1 with a partition plate 4 are provided. In the outdoor unit of the partitioned air conditioner, the reactor 5 is arranged on the machine room 11 side of the partition plate 4, and the ventilation path 6 that connects the machine room 11 and the air blowing room 10 is provided. It is characterized in that the machine room side opening 6a is provided in the vicinity of the reactor 5.

The outdoor unit for an air conditioner according to a second aspect of the present invention is characterized in that the reactor 5 is provided near the upper end of the partition plate 4.

Further, the outdoor unit of the air conditioner according to claim 3 is:
The machine room side opening 6a of the ventilation passage 6 is characterized in that it is provided near the upper portion of the reactor 5.

The outdoor unit for an air conditioner according to a fourth aspect of the present invention is characterized in that the ventilation passage 6 has a heat absorption passage 7 extending along a back portion of the attached reactor 5.

An outdoor unit of an air conditioner according to a fifth aspect of the invention is an outdoor unit of an air conditioner in which a casing 1 is divided into a fan chamber 10 having a fan 3 and a heat exchanger 2 and a machine chamber 11 by a partition plate 4. In the machine, the reactor 5 is arranged on the side of the blower chamber 10 near the upper end of the partition plate 4.

An outdoor unit for an air conditioner according to a sixth aspect of the invention is provided with an air passage 6 that connects the machine room 11 and the air blowing room 10 to each other.
The ventilation passage side opening 6b of the ventilation passage 6 is provided in the vicinity of the reactor 5.

The outdoor unit of the air conditioner according to a seventh aspect is characterized in that the ventilation chamber side opening 6b of the ventilation passage 6 is provided in the vicinity of the upper portion of the reactor 5.

[0014]

In the outdoor unit for an air conditioner according to claim 1, the reactor 5 is arranged on the machine room 11 side of the partition plate 4, and the machine room side opening 6a of the ventilation passage 6 is provided in the vicinity thereof. Therefore, the water spray from the outside that enters the blower chamber 10 can be shielded by the partition plate 4 to prevent the reactor 5 from getting wet with water, so that a separate member such as a cover can be omitted. Further, due to the air flow passing through the ventilation passage 6 generated by the fan 3,
It is possible to effectively cool the reactor 5.

Further, in the outdoor unit of the air conditioner according to claim 2,
The reactor 5 is provided near the upper end of the partition plate 4. Therefore, it is possible to more reliably prevent the reactor 5 from getting wet with water.

Further, in the outdoor unit for an air conditioner according to a third aspect of the present invention, the machine room side opening 6a of the ventilation passage 6 is provided near the upper portion of the reactor 5. Therefore, the warm air generated and rising from the reactor 5 can be effectively removed from the vicinity of the reactor 5 by the airflow flowing into the ventilation passage 6, and thereby the reactor 5 can be cooled more efficiently. Become.

In the outdoor unit for an air conditioner according to a fourth aspect, the ventilation passage 6 has a heat absorption passage 7 extending along the back portion of the reactor 5. Therefore, the cooling efficiency of the reactor 5 can be further improved.

In the outdoor unit of the air conditioner according to the fifth aspect, the reactor 5 is arranged near the upper end of the partition plate 4 on the side of the blower chamber 10. Therefore, it is possible to prevent water from being sprayed from above and below or in the lateral direction of the casing 1 to prevent the reactor 5 from getting wet with water, and thus it is possible to omit a separate member such as a cover. In addition, the blower chamber 10 generated by the fan 3
The internal air flow enables effective cooling of the reactor 5.

In the outdoor unit of the air conditioner according to the present invention, since the ventilation passage side opening 6b of the ventilation passage 6 is provided in the vicinity of the reactor 5, the air flow passing through the ventilation passage 6 generated by the fan 3 causes It is possible to effectively cool the reactor 5.

In the outdoor unit for an air conditioner according to a seventh aspect, the ventilation chamber side opening 6b of the ventilation passage 6 is provided near the upper portion of the reactor 5. Therefore, the warm air generated and rising from the reactor 5 can be effectively removed from the vicinity of the reactor 5 by the airflow that passes through the air passage 6 and is discharged from the blower chamber side opening 6b, thereby cooling the reactor 5. Can be performed efficiently.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, specific embodiments of an outdoor unit for an air conditioner according to the present invention will be described in detail with reference to the drawings.

(First Embodiment) FIG. 4 is a central transverse sectional view showing a first embodiment of an outdoor unit for an air conditioner according to the present invention.
The inside of the casing 1 is partitioned by a partition plate 4 into a blower chamber 10 having a fan 3, a heat exchanger 2 and the like, and a machine chamber 11 having a compressor, an accumulator and the like (not shown). Further, in front of the fan 3, a bell mouth 21 provided by connecting the partition plate 4 and a part of the casing 1 forms an air passage 8, and a blowout grill 22 is attached from the front thereof.

FIG. 3 is an exploded perspective view of the outdoor unit.
As shown in the figure, the casing 1 includes a front plate 23 and side plates 2.
4, the top plate 25 and the bottom frame 26. The bell mouth 21 is placed in the front opening 29 of the front plate 23.
The outlet grill 22 is attached from the front. Front plate 2
A plurality of vent holes 28 are provided in a portion of the casing 3 located on the side surface of the casing 1 from the upper end side to the lower end side. Further, as shown in FIG. 4, the inside of the casing 1 is divided into a blower chamber 10 and a machine chamber 11 by a partition plate 4,
The reactor 5 is attached to the machine room 11 side on the upper end side of the partition plate 4. In FIG. 3, reference numeral 27 is an electrical equipment box, and the compressor, accumulator, and the like arranged in the machine room 11 are omitted for the sake of simplicity and easy understanding.

FIG. 1 is an enlarged view of a main part of a partition plate 4 showing a mounting portion of the reactor 5, where (a) is a perspective view and (b) is a view.
FIG. 4B is a sectional view taken along line AA ′ in FIG. Further, FIG. 2 is a view showing a mounting structure formed on the partition plate 4 for mounting the reactor 5, and FIG.
The plan view seen from the mounting side, (b) is B- shown in the same figure (a)
It is sectional drawing in B '. As shown in these figures,
At the reactor 5 mounting position on the partition plate 4, a reactor mounting surface 12 having a periphery slightly larger than the quadrilateral reactor mounting plate 5 a projects slightly forward (machine room (11) side) from the partition plate 4. Is formed. When the reactor 5 is mounted, the reactor mounting surface 12 has lateral pressing pieces 13, 1 for supporting the reactor mounting plate 5a from both sides while restricting the left and right positions thereof.
3 is provided. Further, when the reactor mounting plate 5a is inserted into the side pressing pieces 13 and 13 from above at the lower end portion of the reactor mounting surface 12, the reactor mounting plate 5a is regulated at the lower position to stop the sliding, and from the front side. Lower pressing piece 1 for pressing and supporting the reactor mounting plate 5a
4 are provided. The side pressing pieces 13, 13 and the lower pressing piece 14 are provided with gaps 13a, 14a corresponding to the thickness thereof for inserting the reactor mounting plate 5a, or these side pressing pieces 13 and 13 are provided at the upper end portions 13b, 14b. The gaps 13a, 14a are formed so that their width becomes wider toward the upper end.
A can be easily inserted.

Further, as shown in FIGS. 2 (a) and 2 (b), the reactor mounting surface 12 is provided with B in the figure.
The recessed portion 15 is provided so as to extend in the vertical direction along -B '. The recessed portion 15 has a semicircular cross section, and has a recessed upper end portion 15a located above the upper end of the reactor mounting surface 12 and a recessed portion lower end opening that opens at the center of the reactor mounting surface 12 toward the blower chamber 10 side. 15b and. Then, the reactor 5 is attached from the machine room 11 side of the reactor mounting surface 12 using the side pressing pieces 13, 13 and the lower pressing piece 14 as described above, and the screw 16 and the screw hole 1
As shown in FIGS. 1 (a) and 1 (b), the concave portion 15 serves as the ventilation passage 6, and the upper end 15a of the concave portion is fixed to the machine room side opening 6a of the ventilation passage 6 as shown in FIGS. Further, the lower end opening 15b of the recessed portion becomes the blower chamber side opening 6b of the ventilation passage 6. The portion surrounded by the back surface of the reactor 5 (on the side of the blower chamber 10) and the recess 15 forms the heat absorption passage 7. That is, the ventilation path 6 is formed by the machine room side opening 6a, the heat absorption path 7, and the blower room side opening 6b.

The outdoor unit constructed as described above operates as follows. That is, when the fan 3 operates, the inside of the blower chamber 10 has a negative pressure, and the outside air is sucked from the rear of the casing 1 and the side through the ventilation hole 28. The sucked air is heat-exchanged by the heat exchanger 2, and is again discharged to the outside through the air passage 8 provided on the front surface of the casing 1. As described above, the inside of the blower chamber 10 has a negative pressure due to the operation of the fan 3, so that the machine room 1
The air in 1 is also sucked into the blower chamber 10 through the ventilation passage 6. Therefore, from the machine room side opening 6a of the ventilation passage 6 provided near the upper end of the reactor 5 to the heat absorption passage 7 on the rear surface of the reactor 5.
An airflow that passes through the air passage 6 and reaches the blower chamber side opening 6b of the ventilation passage 6 is formed. Since the reactor 5 generates heat with the operation of the outdoor unit, it is necessary to cool it as described above. However, the warm air generated from the reactor 5 and rising by the airflow is removed from the vicinity of the reactor 5. Moreover, since the heat of the reactor 5 can be absorbed from the back surface by the air flow passing through the heat absorption passage 7, the cooling can be effectively performed.

Further, during the cooling operation of the outdoor unit, the air that has been heat-exchanged by the heat exchanger 2 has a temperature higher than the outside air temperature. However, the reactor 5 is provided on the machine room 11 side, and the machine room 11 and the blower room 10 are separated from each other by the partition plate 4
The bellmouth 2
The air is discharged to the outside of the casing 1 through the air passage 8 formed by 1. Therefore, even if a special cover or the like is not used, the air whose temperature is higher than the outside air temperature is in the reactor 5
Collisions are avoided, which can further improve the cooling efficiency.

By the way, as described above, the heat exchanger 2 is exposed on the rear surface of the casing 1, and the ventilation holes 28 are also provided on the side surfaces. Therefore, rainwater or the like may enter from these and the air passage 8 on the front side of the casing 1 to cause infiltration of water droplets. However, this water spray is generated in the blower chamber 10 as is clear from the route. Since the reactor 5 in this outdoor unit is arranged in the machine room 11 and is shielded from the blower chamber 10 by the partition plate 4, water leakage of the reactor 5 due to water spray or the like is performed without using a special waterproof cover or the like. Can be prevented. Also,
Even if water droplets enter the machine room 11 side,
Since the reactor 5 is arranged immediately below the top plate 25, it is possible to reliably prevent water wetting due to falling water drops. Further, the ventilation path 6 is provided so as to extend vertically as shown in FIG. 1 (b), and the blower chamber side opening 6b is opened downward. Therefore, it is possible to prevent water from being blown from the side of the ventilation chamber 10 to the machine room 11 through the ventilation passage 6, and to make the reactor 5 waterproof more reliably.

(Second Embodiment) FIG. 5 shows a second embodiment of the outdoor unit.
Partition plate 4 showing the mounting portion of the reactor 5 in the embodiment
2A is an enlarged view of a main part of FIG. 3A, and FIG. 3A is a perspective view, and FIG. The first
In the embodiment, the reactor 5 is arranged from the machine chamber 11 side of the partition plate 4, but in the second embodiment, the reactor 5 is arranged from the blower chamber 10 side of the partition plate 4 at the same position as that. And, except that the opening of the ventilation passage 6 provided in the vicinity of the upper part of the reactor 5 becomes the ventilation chamber side opening 6b, and the opening on the back side of the reactor 5 above the ventilation passage 6 becomes the machine room side opening 6a. It has the same configuration as that of the first embodiment.

Even in the outdoor unit constructed as described above, a negative pressure is generated in the blower chamber 10 when the fan 3 is operating, so that the ventilation passage 6 is opened from the machine chamber side opening 6a to the blower chamber side opening 6b.
An air flow leading to Therefore, the reactor 5 can be effectively cooled. Further, since the water sprayed into the casing 1 is mainly generated by rainwater or the like, the water is incident from above the outside. However, since the reactor 5 is arranged near the upper end of the partition plate 4, that is, directly below the top plate 25,
It is possible to avoid the water spray, and also to avoid water droplets that enter the blower chamber 10 and fall.
Therefore, also in this embodiment, it is possible to prevent water from getting wet in the reactor 5 due to water spray or the like without using a special waterproof cover or the like. Further, in this embodiment, the position where the reactor 5 is arranged is a position where no other device or component is conventionally arranged in the casing 1, and an empty space formed by installing the fan 3 therebelow. Is a space. Therefore, by disposing the reactor 5 at this position, the outdoor unit can be made more compact. In this embodiment, the reactor 5 is cooled by
Since it may be performed by the air flow in the blower chamber 10, the air passage 6 may be omitted, but if the air passage 6 is provided, the cooling effect is further improved.

The specific embodiments of the present invention have been described above, but the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the present invention. For example, in the first or second embodiment described above,
Although the reactor 5 is arranged in a part of the partition plate 4 provided behind the front plate 23, the reactor 5 is arranged in a part provided along the side plate 24 as shown in FIG. Alternatively, unlike the case of the above-described embodiment, it can be widely implemented in an outdoor unit of a type that uses the partition plate 31 that does not have a portion provided along the front plate 23.

[0032]

In the outdoor unit for an air conditioner according to claim 1, the reactor is arranged on the machine room side of the partition plate, and the machine room side opening of the ventilation passage is provided in the vicinity thereof. Therefore, the water spray from the outside that enters the blower chamber can be shielded by the partition plate to prevent the reactor from being wet with water, so that a separate member such as a cover can be omitted. Further, the reactor can be effectively cooled by the air flow generated by the fan and passing through the ventilation passage. And with these,
It is possible to obtain an outdoor unit that is compact and can be manufactured at low cost.

Further, in the outdoor unit of the air conditioner according to claim 2,
The reactor is provided near the upper end of the partition plate. Therefore,
It is possible to more reliably prevent the reactor from getting wet with water.

Furthermore, in the outdoor unit for an air conditioner according to a third aspect of the present invention, the opening on the machine room side of the ventilation passage is provided near the upper portion of the reactor. Therefore, the warm air generated from the reactor and rising can be effectively removed from the vicinity of the reactor by the airflow flowing into the ventilation passage, whereby the reactor can be cooled more efficiently.

In the outdoor unit for an air conditioner according to a fourth aspect, the ventilation passage has a heat absorption passage extending along the back portion of the luactor. Therefore, the cooling efficiency of the reactor can be further improved.

In the outdoor unit of the air conditioner according to the fifth aspect, the reactor is arranged near the upper end of the partition plate on the side of the blower chamber.
Therefore, it is possible to prevent water from being sprayed from above and below or in the lateral direction of the casing to prevent water from getting wet in the reactor, and it is possible to omit a separate member such as a cover.
Further, the air flow in the blower chamber generated by the fan enables effective cooling of the reactor. As a result, it becomes possible to obtain an outdoor unit that is compact and can be manufactured at low cost.

In the outdoor unit of the air conditioner according to the sixth aspect of the present invention, since the ventilation passage side opening of the ventilation passage is provided in the vicinity of the reactor, the air flow passing through the ventilation passage generated by the fan has a further effect on the reactor. It is possible to perform effective cooling.

In the outdoor unit for an air conditioner according to a seventh aspect, the ventilation chamber side opening of the ventilation passage is provided near the upper portion of the reactor.
Therefore, the warm air generated and rising from the reactor can be effectively removed from the vicinity of the reactor by the airflow discharged from the opening on the side of the air blower while passing through the air passage, thereby cooling the reactor efficiently. It becomes possible.

[Brief description of drawings]

FIG. 1 is an enlarged view of a main part showing a reactor mounting portion of an outdoor unit of an air conditioner according to a first embodiment of the present invention,
(A) is a perspective view, (b) is an AA 'sectional view.

2A and 2B are enlarged views of a main part of a partition plate in the outdoor unit, in which FIG. 2A is a plan view and FIG. 2B is a sectional view taken along line BB ′.

FIG. 3 is an exploded perspective view of the outdoor unit.

FIG. 4 is a central cross-sectional view of the outdoor unit.

FIG. 5 is an enlarged view of essential parts showing a reactor mounting portion of an outdoor unit of an air conditioner according to a second embodiment of the present invention,
(A) is a perspective view, (b) is a CC 'cross-sectional view.

FIG. 6 is an exploded perspective view showing a modification of the outdoor unit.

FIG. 7 is a main part perspective view showing an outdoor unit of an air conditioner in a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Casing 2 Heat exchanger 3 Fan 4 Partition plate 5 Reactor 6 Ventilation path 7 Heat absorption path 10 Blower room 11 Machine room

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takero Kurahashi, Otani 1000, Okamoto-cho, Kusatsu-shi, Shiga 2 Daikin Industry Co., Ltd. Shiga Works (72) Norihide Emperor Norihide Emperor Otani, Okamoto-cho, Kusatsu-shi, Shiga 2 at 1000 Daikin Industry Co., Ltd. Shiga Works

Claims (7)

[Claims] 1. An air conditioner in which a casing (1) is divided into a blower chamber (10) having a fan (3) and a heat exchanger (2) and a machine chamber (11) by a partition plate (4). In the outdoor unit, the reactor (5) is arranged on the machine room (11) side of the partition plate (4), and a ventilation path (6) is provided to connect the machine room (11) and the blower room (10). And an opening (6a) on the machine room side of the ventilation passage (6) is provided near the reactor (5). 2. The reactor (5) is provided near the upper end of the partition plate (4).
Air conditioner outdoor unit. 3. A machine room side opening (6) of the ventilation passage (6).
The outdoor unit for an air conditioner according to claim 1 or 2, wherein a) is provided in the vicinity of an upper portion of the reactor (5). 4. The air conditioner according to claim 1, wherein the ventilation passage (6) has a heat absorption passage (7) extending along a back portion of the attached reactor (5). Outdoor unit. 5. An air conditioner in which a casing (1) is divided into a blower chamber (10) having a fan (3) and a heat exchanger (2) and a machine chamber (11) by a partition plate (4). The outdoor unit of the air conditioner, wherein the reactor (5) is arranged near the upper end of the partition plate (4) on the side of the blower chamber (10). 6. A ventilation passage (6) is provided to connect the machine room (11) and the ventilation chamber (10), and the ventilation chamber side opening (6b) of the ventilation passage (6) is connected to the reactor (5). The outdoor unit for an air conditioner according to claim 5, wherein the outdoor unit is provided in the vicinity. 7. A ventilation chamber side opening (6) of the ventilation passage (6)
The outdoor unit for an air conditioner according to claim 6, wherein b) is provided near the upper portion of the reactor (5).