JP3089890B2 - Outdoor unit of air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art A conventional outdoor unit of an air conditioner, particularly one related to storage of electrical components, is disclosed in
No. 25636 can be mentioned.
In this case, the interior of the casing of the outdoor unit is partitioned by a partition plate into a blower room having a heat exchanger, a blower, and the like, and an electrical component, a compressor room having a compressor, and the like. It is arranged so as to protrude toward the blower room. And on the wall of the electrical component box on the side of the blower room,
An exhaust port communicating with the compressor chamber is provided to prevent the temperature of electrical components from rising due to air flowing from the compressor chamber to the blower chamber.

[0003]

However, in the electrical component box in the outdoor unit of the air conditioner, since the layout of the reactor that generates the most heat among the electrical components is prioritized, the layout of other electrical components is restricted. Not only that, since it is necessary to ensure the cooling and waterproofing of the electrical component box, the arrangement of other devices in the casing is also restricted. For this reason, the space in the casing cannot be effectively used, and this has been an obstacle to downsizing the outdoor unit.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional drawbacks, and an object of the present invention is to eliminate restrictions due to the arrangement of a reactor and to make an outdoor unit compact in an outdoor unit of an air conditioner. To provide units.

[0005]

Therefore, an outdoor unit of an air conditioner according to a first aspect of the present invention has a heat exchanger 4 and a fan 5 in a casing 1, and when the fan 5 operates, the casing 1 In an outdoor unit of an air conditioner in which the air flowing into the air flows from the heat exchanger 4 side to the fan 5 side, a bypass passage 11 is formed below the heat exchanger 4. A baffle plate 13 that is higher than the upper end of the bypass passage 11 is erected on the upstream side, and a reactor 6 is disposed on the downstream side.
A part of the air flowing into the reactor 6 flows downward along the baffle plate 13 and then passes through the bypass passage 11 to be guided to the reactor 6.

The outdoor unit of the air conditioner according to claim 2 is characterized in that the reactor 6 is arranged at a position higher than the bypass passage 11.

Further, in the outdoor unit of the air conditioner according to the third aspect, the reactor 6 is covered with a cover 21, and the first opening 19 is formed in the cover 21 on the heat exchanger 4 side.
Are characterized in that the second openings 20 are respectively formed on the fan 5 side.

[0008]

In the outdoor unit of the air conditioner according to the first aspect, when the fan 5 is operated, a part of the air flowing into the casing 1 flows downward along the baffle plate 13 and then flows to the bypass passage 11. Will be crushed. Water droplets that may be entrained in the inflow air during this circulation process are removed by attaching to the heat exchanger 4 and the wall surface of the baffle plate 13.
Thereafter, the inflow air is guided to the reactor 6 disposed on the downstream side of the bypass passage 11, and cools the reactor 6. As described above, since the reactor 6 is installed outside the electrical component box and the cooling and the waterproofing of the reactor 6 can be ensured, restrictions on the installation of other electrical components due to the conventional arrangement of the reactor 6 are provided. Can be eliminated, and the degree of freedom for the installation location of the electrical component box is improved.

In the outdoor unit of the air conditioner according to the second aspect, even if rainwater flows in, the reactor 6 is arranged at a position higher than the bypass passage 11, so that water enters the reactor 6. Can be prevented.

In the outdoor unit of the air conditioner according to the third aspect, more reliable waterproofing can be performed.

[0011]

Next, a specific embodiment of the outdoor unit of the air conditioner of the present invention will be described in detail with reference to the drawings. FIG. 1 is a cross-sectional view schematically showing the inside of the main body of the outdoor unit. In FIG. 1, reference numeral 1 denotes a casing. Inside the casing 1, a blower room 3 provided with a heat exchanger 4, a fan 5 and the like by a partition plate 2, and a compressor room 8 provided with a compressor 9 and the like. And two rooms. When the fan 5 operates, the air flowing into the casing 1 passes through the heat exchanger 4 and flows in the direction of the fan 5, that is, the air flows in the blower room 3 from the right side to the left side in the drawing. In such a flow of inflow air,
Installed downstream of the heat exchanger 4 is a reactor, which is one of the electrical components, and the hatched portion 7 on the side of the blower room 3 indicates the installation location. The hatched portion 10 on the side of the compressor room 8 indicates a place where electric components other than the reactor are installed.

FIG. 2 is an enlarged view showing the vicinity of the installation place of the reactor, and FIG. 3 is a sectional view taken along the arrow III in FIG. FIG. 4 is a perspective view showing the periphery of the reactor. In these figures, reference numeral 11 denotes a bypass passage formed below the heat exchanger 4, and a baffle plate 13 is provided upstream of the bypass passage 11, that is, upstream of the heat exchanger 4. It is attached to along. Part of the air flowing into the heat exchanger 4 by the baffle plate 13 flows downward between the baffle plate 13 and the heat exchanger 4,
Next, the light is deflected by the bottom frame 12 before reaching the bypass passage 11. The baffle plate 13 may use a rising edge of the bottom frame 12. Reference numeral 14 denotes a cooling air guide that is provided on the downstream side of the heat exchanger 4. The cooling air guide 14 is connected to the baffle plate 13.
Similarly to the above, the heat exchanger 4 is provided alongside the entire heat exchanger 4, but at the position of the bypass passage 11, the air passing through the bypass passage 11, that is, the bypass air is guided to the downstream side. It is bent to the downstream side.

Reference numeral 16 denotes four mounting legs which stand on the bottom frame 12 and mount and fix the reactor 6 at a position higher than the upper end of the bypass passage 11.
Is provided around the partition wall 17. This partition wall 1
7 has a waterproof cover 2 covering the reactor 6.
1 is mounted and fixed, and forms a storage space 18 for the reactor 6 together with the partition wall 17. On the heat exchanger 4 side of the storage space 18, the partition wall 17 is provided with the cooling air guide 14.
The first opening 19 is formed by connecting the detour air passing through the bypass passage 11 to the storage space 18 by being connected to the bent portions of the storage space 18. As shown in FIG. 4, the partition wall 17 is erected on the fan 5 side of the storage space 18 so as to be recessed into the interior side of the space 18, and the upper end of the partition wall 17 in the recessed portion is provided. By shifting the edge and the lower edge of the cover 21, a second opening 20 through which the inflow air from the first opening 19 flows out is formed.

As shown in FIG. 2, the bypass air flowing from the first opening 19 is connected to the connecting wall 22 formed between the two upstream mounting legs 16 of the mounting legs 16.
In addition, a short path to the second opening 20 is prevented by the connecting walls 23 and 24 formed between the two downstream mounting legs 16 and the partition wall 17, respectively. Further, the connection wall 22 close to the first opening 19 is
As shown in FIG. 3, the flow of the bypass air is deflected toward the reactor 6 installed on the mounting leg 16. In FIG. 4, reference numeral 26 denotes a relay harness for the reactor 6, and reference numeral 27 denotes an opening through which the relay harness passes.

In the outdoor unit having the above structure, when the fan 5 operates, a part of the air flowing into the heat exchanger 4 flows downward between the baffle plate 13 and the heat exchanger 4 and then flows downstream at the base 12. It deflects to the side and reaches the bypass passage 11. In the above-described flow process, water droplets that may be entrained in the inflow air adhere to the heat exchanger 4, the base 12, and the wall surfaces of the baffle plate 13 and are removed from the inflow air.

Next, the bypass air passing through the bypass passage 11 is guided by the cooling air guide 14 to the first opening 19 of the storage space 18 of the reactor 6 formed by the partition wall 17 and the cover 21. become. At this time, the air flowing through the heat exchanger 4 hardly enters the storage space 18 and the cover 21
This also prevents water drops or the like from falling onto the reactor 6 from above.

The bypass air guided to the storage space 18 prevents a short path to the second opening 20 by the connecting walls 22, 23, 24, and in particular, closes to the first opening 19. The flow is turned upward by the connected connecting wall 22. By this deflection, the bypass air collides with the reactor 6 mounted and fixed on the mounting leg 16, and effectively cools the reactor 6. At this time, even if infiltration water exists on the bottom frame 12, since the reactor 6 is disposed at a high place, a sufficient waterproof effect can be obtained for the reactor 6. After cooling, the bypass air flows out of the second opening 20 and is blown out of the casing 1 together with the air that has passed through the heat exchanger 4.

As described above, in the outdoor unit of the air conditioner in the above embodiment, the reactor 6 is waterproofed and the cooling of the reactor 6 can be ensured, so that the reliability of the function of the reactor 6 is improved. Can be further improved. Further, since the reactor 6 is disposed separately from other electrical components, restrictions on the location of other electrical components and other devices are also eased, so that the outdoor unit can be made more compact. Still other electrical components are the same as in the conventional reactor 6.
Since the influence of the heat generation of the electric components is eliminated, the reliability of the functions of other electric components can be improved.

[0019]

As described above, in the outdoor unit of the air conditioner according to the first aspect, since the reactor is not housed in the electrical component box together with other electrical components as in the related art, the reactor is separately arranged.
Restrictions on the placement of other electrical components due to the placement of the reactor,
In addition, since restrictions on the arrangement of other devices due to cooling of the electrical component box can be eased, the outdoor unit can be made more compact. In addition, when the separate arrangement is performed, other electrical components are not affected by heat generated by the reactor, so that the reliability of the function can be improved.

Further, according to the present invention, the waterproof effect of the reactor can be improved.

Further, according to the third aspect, the waterproof effect of the reactor can be further improved.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of an outdoor unit of an air conditioner of the present invention.

FIG. 2 is an enlarged plan view showing a main part of the embodiment.

FIG. 3 is a sectional view taken along the arrow III in FIG. 2;

FIG. 4 is a perspective view showing a part of the main part of the embodiment cut away.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 casing 4 heat exchanger 5 fan 6 reactor 11 bypass passage 13 baffle plate 19 first opening 20 second opening 21 cover

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-2-110227 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) F24F 5/00

Claims (3)

(57) [Claims] 1. A heat exchanger (4) and a fan (5) are provided in a casing (1), and when the fan (5) is operated, air flowing into the casing (1) is supplied to the casing (1). In the outdoor unit of the air conditioner that flows from the heat exchanger (4) side to the fan (5) side, a bypass passage (11) is formed below the heat exchanger (4), and the bypass passage (11) is formed. A baffle plate (13) higher than the upper end of the bypass passage (11) is erected on the upstream side of the heat exchanger (4), and a reactor (6) is arranged on the downstream side.
Characterized in that a part of the air flowing into the air conditioner flows downward along the baffle plate (13) and then passes through the bypass passage (11) to the reactor (6). Outdoor unit of the machine. 2. An outdoor unit for an air conditioner according to claim 1, wherein said reactor (6) is arranged at a position higher than said bypass passage (11). 3. The reactor (6) is covered with a cover (21). In the cover (21), a first opening (19) is provided on the heat exchanger (4) side and on the fan (5) side. The outdoor unit of an air conditioner according to claim 1 or 2, wherein the second openings (20) are respectively formed.