WO2017037820A1

WO2017037820A1 - Outdoor unit

Info

Publication number: WO2017037820A1
Application number: PCT/JP2015/074580
Authority: WO
Inventors: 竹内　裕人; 賢太郎米原; 和穂伊藤
Original assignee: 三菱電機株式会社
Priority date: 2015-08-31
Filing date: 2015-08-31
Publication date: 2017-03-09
Also published as: CN207019198U; JPWO2017037820A1; EP3346199A1; AU2015407701B2; AU2015407701A1; EP3346199A4; EP3346199B1; JP6452829B2

Abstract

This outdoor unit has a first terminal block and a second terminal block which are disposed side by side in the vertical direction, and has a terminal block fixing device provided with a first terminal block fixing plate to which the first terminal block is attached and a second terminal block fixing plate to which the second terminal block is attached. The terminal block fixing device has a first fixing surface of the first terminal block fixing plate and a second fixing surface of the second terminal block fixing plate, the first terminal block being fixed on the first fixing surface, and the second terminal block being fixed on the second fixing surface. The first fixing surface and the second fixing surface are configured at different angles.

Description

Outdoor unit

The present invention relates to a terminal block fixing device for an outdoor unit.

Conventionally, in an outdoor unit of an air conditioner, a compressor, a heat exchanger, a blower, and the like are housed inside a casing, and the blower is driven to supply outside air to the heat exchanger, and the compressor is operated to operate a refrigeration cycle. The refrigerant is circulated. Power for operating the compressor, the blower, and the like is supplied from the outside to the outdoor unit or the terminal block of the indoor unit through power wiring. Further, the outdoor unit and the indoor unit are connected by a control signal line and a power supply crossover wiring, and these wirings are also connected to each terminal block (for example, see Patent Document 1).

JP 2003-294272 A

In such a conventional outdoor unit, a plurality of terminal blocks are arranged side by side on a flat terminal block fixing plate. Then, when the number of indoor units connected to the outdoor unit increases, or when connecting an external signal (for example, a demand signal of a power consumption monitoring panel or a control signal of a home energy management system (HEMS)) as an extended function The terminal block will be expanded in a plane.

When the terminal block is installed on the terminal block fixing plate in a plane, the wiring is connected to the terminal block so that the wirings overlap each other, and there is a problem that the wiring becomes complicated and the work efficiency deteriorates. In addition, since the horizontal dimension of the terminal block fixing plate varies depending on the number of terminal blocks, there is a problem that it is impossible to share components including the casing of the outdoor unit.

The present invention has been made against the background of the problems described above, and when connecting various wirings to a plurality of terminal blocks, it eliminates the complexity of the wirings and improves the work efficiency. The purpose is to fix the dimensions in the horizontal direction and to share the components of the outdoor unit.

An outdoor unit according to the present invention includes a first terminal block arranged in a vertical direction, a second terminal block, a first terminal block fixing plate to which the first terminal block is attached, And a second terminal block fixing plate to which the second terminal block is attached. The terminal block fixing device includes the first terminal block fixing plate to which the first terminal block is fixed. The first fixing surface and the second fixing surface of the second terminal block fixing plate to which the second terminal block is fixed, and the first fixing surface and the second fixing surface are at different angles. It is composed of

In the outdoor unit according to the present invention, when various wirings are connected to a plurality of terminal blocks, the complexity of the wiring is reduced, work efficiency is improved, and the components of the outdoor unit can be shared. .

1 is a perspective view of an outdoor unit according to Embodiment 1. FIG. 1 is a side view of an outdoor unit according to Embodiment 1. FIG. 1 is an exploded perspective view of an outdoor unit according to Embodiment 1. FIG. 3 is a perspective view of a control device unit in the outdoor unit according to Embodiment 1. FIG. FIG. 5 is a perspective view of the control device unit in the outdoor unit according to Embodiment 1 as seen from an angle different from that in FIG. 4. 3 is an exploded perspective view of a control device unit in the outdoor unit according to Embodiment 1. FIG. 3 is an exploded perspective view of a terminal block fixing device in the outdoor unit according to Embodiment 1. FIG. 4 is a perspective view of a second terminal block fixing plate in the outdoor unit according to Embodiment 1. FIG. 3 is a front view of the terminal block fixing device in the outdoor unit according to Embodiment 1. FIG. FIG. 3 is a rear view of the terminal block fixing device in the outdoor unit according to Embodiment 1. 3 is a cross-sectional view of the terminal block fixing device taken along the line AA in the outdoor unit according to Embodiment 1. FIG. 4 is a perspective view of a second terminal block fixing plate in the outdoor unit according to Embodiment 1. FIG. It is sectional drawing of the 2nd terminal block fixing plate in the outdoor unit which concerns on Embodiment 1. FIG.

Hereinafter, an outdoor unit of an air conditioner according to the present invention will be described with reference to the drawings.
The configuration of the outdoor unit described below is merely an example, and the outdoor unit according to the present invention is not limited to such a configuration. Moreover, in each figure, the same code | symbol is attached | subjected to the same or similar thing, or attaching | subjecting code | symbol is abbreviate | omitted. Further, the illustration of the fine structure is simplified or omitted as appropriate. In addition, overlapping or similar descriptions are appropriately simplified or omitted.

Embodiment 1 FIG.
An outdoor unit according to Embodiment 1 will be described with reference to FIGS.
<Configuration of outdoor unit>
1 is a perspective view of an outdoor unit according to Embodiment 1. FIG.
FIG. 2 is a side view of the outdoor unit according to Embodiment 1. FIG.
3 is an exploded perspective view of the outdoor unit according to Embodiment 1. FIG.

As shown in FIG. 1, the casing 1 of the outdoor unit is made of sheet metal and has a substantially rectangular parallelepiped shape.
The housing 1 is largely composed of a top panel 1a, a front panel 1b, a back panel 1c, a side panel 1d, and a bottom plate 1e.
A grill 2 that functions as an air outlet is attached to the front panel 1b. A service cover 3 in which a terminal block and the like are housed is attached to the side panel 1d. The service cover 3 has a louver portion 3 a that introduces outside air into the housing 1. Further, a valve cover 4 is attached below the side panel 1d.

The side panel 1d of the outdoor unit according to Embodiment 1 is provided with a wiring opening 1f that allows access to an internal terminal block and the like, as shown in FIG.
The first main terminal block 20a and the second main terminal block 20b fixed to the first terminal block fixing plate 21 can be seen in the opening 1f for wiring in a side view of the housing 1. Further, the first terminal block fixing plate 21 has a terminal block opening 21d in which the sub terminal block 20c is disposed, and an air opening 21e through which the outside air that has passed through the louver portion 3a of the service cover 3 passes. .

As shown in FIG. 3, the internal structure of the outdoor unit according to Embodiment 1 has a blower chamber A and a machine chamber B, and is separated by a separator 5. Moreover, each component in the outdoor unit is disposed on a bottom plate 1e having legs.
In the blower chamber A, a blower 6, a heat exchanger 7 and the like are arranged. In the machine room B, a compressor 8, a refrigerant pipe, a control device unit 9, and the like are arranged.

<Configuration of control unit>
FIG. 4 is a perspective view of a control unit in the outdoor unit according to Embodiment 1.
FIG. 5 is a perspective view of the control device unit in the outdoor unit according to Embodiment 1 as viewed from an angle different from that in FIG. 4.
FIG. 6 is an exploded perspective view of the control device unit in the outdoor unit according to Embodiment 1.
As shown in FIGS. 4 to 6, the control unit 9 of the outdoor unit includes an electrical component support material 14 for supporting a control board 10 (corresponding to the first control board of the present invention) and a terminal block to which a terminal block is attached. The terminal block fixing plate 21 is configured to be larger. When the air conditioner is operated, the control device unit 9 performs calculations based on input values from various sensors of the refrigeration cycle device and each set value, and controls the capacity of the compressor 8, the blower 6, and the like. Yes, an inverter circuit or the like is provided on the control board 10.

As shown in FIG. 6, the electrical product support member 14 is made of a sheet metal having an L-shaped configuration surface 14 a having a substantially L-shaped cross section. Moreover, it has the baseplate surface 14b formed in the one end side of the L-shaped structure surface 14a.
A heat radiating portion 12 that cools the heat-generating components of the control board 10 is attached to the electrical component support material 14 via a heat radiating portion support material 13. The heat dissipating part 12 is a heat sink provided with, for example, aluminum fins. In addition, a heat-dissipating part protection member 15 that protects the heat-dissipating part 12 is attached to the electrical support member 14 from the blower chamber A side so as to cover the heat-dissipating part 12. The heat radiation part protection member 15 has a duct shape having a flow path, and air for cooling the heat radiation part 12 flows therethrough.
The electrical product support member 14 has a first opening 14c into which the heat dissipating part 12 is inserted in a rectangular shape. Further, adjacent to the first opening 14c, a second opening 14d through which the cooling air that has cooled the control board 10 flows into the blower chamber A is opened.

The control board 10 is attached to the electrical product support member 14 via a planar board support member 11. At this time, an electrical component having a large calorific value on the control board 10 is thermally connected to the heat radiating section 12.
The first terminal block fixing plate 21 is erected on the bottom plate surface 14b of the electrical component support member 14 as shown in FIGS. The first main terminal block 20 a and the second main terminal block 20 b attached to the first terminal block fixing plate 21 and the control board 10 are connected by the first wiring 16. The first terminal block fixing plate 21 has a terminal block opening 21d in which the sub-terminal block 20c is disposed as described above and an air opening 21e through which the outside air that has passed through the louver portion 3a of the service cover 3 passes. It is open. Further, as shown in FIG. 4, an extension board support member 32 that supports an extension function control board 31 described later is disposed on the side of the first terminal block fixing plate 21.

The outside air that has flowed into the housing 1 through the louver portion 3a of the service cover 3 passes through the air opening 21e of the first terminal block fixing plate 21 and cools the control board 10 and the extended function control board 31. Then, it flows into the blower chamber A through the second opening 14 d of the electrical component support member 14 and is discharged out of the housing 1 by the blower 6.

<Configuration of terminal block fixing device>
FIG. 7 is an exploded perspective view of the terminal block fixing device in the outdoor unit according to the first embodiment.
FIG. 8 is a perspective view of the second terminal block fixing plate in the outdoor unit according to Embodiment 1. FIG.
FIG. 9 is a front view of the terminal block fixing device in the outdoor unit according to the first embodiment.
FIG. 10 is a rear view of the terminal block fixing device in the outdoor unit according to the first embodiment.
FIG. 11 is an AA cross-sectional view of the terminal block fixing device in the outdoor unit according to the first embodiment.
The terminal block fixing device 100 includes a first terminal block fixing plate 21 and a second terminal block fixing plate 30 shown in FIGS.

As shown in FIG. 7, the first terminal block fixing plate 21 includes a main plate 21a, a first rib 21b formed by bending from the main plate 21a on one end side of the main plate 21a, and a main plate 21a on the other end side of the main plate 21a. And a second rib 21c formed by bending. The main plate 21a has a terminal block opening 21d, which is a rectangular through hole, and an air opening 21e.

As shown in FIG. 7, the main plate 21a of the first terminal block fixing plate 21 includes a first main terminal block 20a (corresponding to the first terminal block of the present invention) and a second main terminal block 20b (first of the present invention). (Corresponding to the terminal block) are attached in parallel in the horizontal direction by screws 22 or the like. At this time, the surface of the main plate 21a to which the first main terminal block 20a and the second main terminal block 20b are attached is a front surface 21A (corresponding to the first fixed surface of the present invention). A surface opposite to the front surface 21A is referred to as a back surface 21B.

A second terminal block fixing plate 30 for fixing the sub terminal block 20c is fixed to the back surface 21B of the main plate 21a so as to cover the terminal block opening 21d of the first terminal block fixing plate 21.
At this time, as shown in FIG. 9, the first main terminal block 20a, the second main terminal block 20b, the terminal block opening 21d, and the air opening 21e are arranged on the first terminal block fixing plate 21 from the top in the vertical direction. Each configuration is arranged.

As shown in FIG. 8, the second terminal block fixing plate 30 is formed on the inclined plate 30a to which the sub terminal block 20c (corresponding to the second terminal block of the present invention) is fixed, and at both ends of the inclined plate 30a. The support plate 30b has a substantially triangular shape, and an attachment piece 30c formed by bending the support plate 30b.
The inclined plate 30a has a front surface 30A (corresponding to the second fixed surface of the present invention) to which the sub terminal block 20c is attached, and a back surface 30B which is a surface opposite to the front surface 30A.
The front surface 30A of the inclined plate 30a and the attachment piece 30c are formed at different angles (for example, 45 °). A mounting hole 30e for attaching the sub terminal block 20c is opened at a bent portion at the boundary between the inclined plate 30a and the support plate 30b. The inclined plate 30a is formed with two positioning projections 30f that facilitate positioning when attached to the sub terminal block 20c.
The mounting piece 30c of the second terminal block fixing plate 30 is fixed to the back surface 21B of the first terminal block fixing plate 21 by spot welding 30d or the like along two opposing sides of the terminal block opening 21d as shown in FIG. The

The front surface 30A of the inclined plate 30a in the second terminal block fixing plate 30 is formed at an angle different from the front surface 21A of the main plate 21a in the first terminal block fixing plate 21, as shown in FIG. For example, the front surface 30A of the inclined plate 30a is inclined by 45 ° with respect to the front surface 21A of the main plate 21a.
Therefore, as shown in FIG. 11, the inclined plate 30a of the second terminal block fixing plate 30 is attached to the back surface 21B side of the main plate 21a of the first terminal block fixing plate 21 while being inclined obliquely upward with respect to the main plate 21a. . At this time, an opening 40 is formed above the terminal block opening 21d of the first terminal block fixing plate 21 between the inclined plate 30a of the second terminal block fixing plate 30 and the peripheral portion 21f of the terminal block opening 21d. Is done.

When the first main terminal block 20a, the second main terminal block 20b, and the sub-terminal block 20c are attached to the first terminal block fixing plate 21 and the second terminal block fixing plate 30, the first terminal block fixing plate 21 are the first main terminal block 20a and the second main terminal block 20b attached to the front surface 21A of the main plate 21a, and the auxiliary terminal block 20c attached to the front surface 30A of the inclined plate 30a of the second terminal block fixing plate 30. Each is attached at a different angle (eg 45 °).
When viewed from the front surface 21A side of the first terminal block fixing plate 21, the sub-terminal block 20c can be seen in the terminal block opening 21d as shown in FIG.

Further, on the first rib 21b side of the first terminal block fixing plate 21, there is an extension board support member 32 that supports the extension function control board 31 (corresponding to the second control board of the present invention) as shown in FIG. Has been placed. The extended board support member 32 is erected from the bottom plate surface 14 b of the electrical product support material 14. The extended function control board 31 is attached to the extended board support member 32 with screws 22 or the like. The extended function control board 31 and the sub terminal block 20 c are connected by the second wiring 33.
The first terminal block fixing plate 21 and the second terminal block fixing plate 30 have been described as being screwed separately, but the tongue piece cut and raised from the terminal block opening 21d of the first terminal block fixing plate 21. It is good also as a 1st terminal block fixing board 21, and it is good also as an integral structure.

<Terminal block configuration>
The first main terminal block 20a, the second main terminal block 20b, and the sub terminal block 20c are connected to the control board 10 and the extended function control board 31, respectively, to the board connection terminal 20y, and to an external power source or an external device. The external connection part 20z for connecting wiring is provided. The first wiring 16 and the second wiring 33 are connected to the board connecting terminal 20y via a connector. Further, a power supply wiring and an external signal wiring are connected to the external connection portion 20z.

The function of each terminal block is not particularly limited. For example, the first main terminal block 20a is a terminal block for connecting a three-phase power source for operating the outdoor unit from the outside. The second main terminal block 20b is a terminal block that connects the indoor unit and the outdoor unit, supplies power to the indoor unit, and connects a control signal line. Furthermore, the sub-terminal block 20c is a terminal block for connecting an external signal of an external device (for example, a demand signal of a power usage monitoring panel or a control signal of a home energy management system (HEMS)) as an extended function.

<Attaching the sub terminal block>
Next, a procedure for attaching the sub terminal block 20c to the second terminal block fixing plate 30 will be described with reference to FIGS.
12 is a perspective view of a second terminal block fixing plate in the outdoor unit according to Embodiment 1. FIG.
FIG. 13 is a cross-sectional view of the second terminal block fixing plate in the outdoor unit according to Embodiment 1.
The sub-terminal block 20c has a pair of mounting pieces 20d at opposite ends. The mounting piece 20d has a U-shaped notch at the center so that it can be screwed.

When attaching the sub terminal block 20 c to the second terminal block fixing plate 30, one mounting piece 20 d is inserted into the mounting hole 30 e of the second terminal block fixing plate 30. Next, the screw 22 is inserted into the U-shaped notch in the other mounting piece 20d, and the sub-terminal block 20c is fixed to the second terminal block fixing plate 30 as shown in FIG.

The cross sections of the second terminal block fixing plate 30 and the sub terminal block 20c at this time are as shown in FIG. The driver pit 50 for rotating the screw 22 is configured to be able to work with a clearance 50a with respect to the peripheral portion 21f of the terminal block opening 21d of the first terminal block fixing plate 21.
Further, when the sub terminal block 20c is attached to the second terminal block fixing plate 30, the terminal of the first terminal block fixing plate 21 can be secured so that the visibility of the terminal identification label 20e attached to the sub terminal block 20c can be ensured. The angles of the base opening 21d and the inclined plate 30a of the second terminal block fixing plate 30 are adjusted.

The peripheral edge portion 21f of the terminal block opening 21d of the first terminal block fixing plate 21 is subjected to close contact bending or bending so that each wiring connected to the sub terminal block 20c is not damaged.
Further, the end portion 30g of the inclined plate 30a of the second terminal block fixing plate 30 is similarly subjected to close contact bending or bending.

<Effect>
The outdoor unit according to Embodiment 1 is
(1) a first terminal block (corresponding to the first main terminal block 20a and the second main terminal block 20b) arranged side by side in the vertical direction, a second terminal block (corresponding to the sub terminal block 20c), And a terminal block fixing device 100 including a first terminal block fixing plate 21 to which the first terminal block is attached and a second terminal block fixing plate 30 to which the second terminal block is attached. The terminal block fixing device 100 includes a first fixing surface (corresponding to the front surface 21A of the main plate 21a) of the first terminal block fixing plate 21 to which the first terminal block is fixed, and a second terminal to which the second terminal block is fixed. The base fixing plate 30 has a second fixing surface (corresponding to the front surface 30A of the inclined plate 30a), and the first fixing surface and the second fixing surface are configured at different angles.
For this reason, when various wirings are connected to a plurality of terminal blocks, the wirings do not overlap in the plane direction of the terminal block fixing plate, so that the complexity of the wiring is eliminated and the working efficiency is improved. Further, by arranging each terminal block in the vertical direction, the horizontal dimension of the first terminal block fixing plate 21 is fixed, and it becomes possible to share the components of the outdoor unit.

Moreover, the outdoor unit according to Embodiment 1 is the outdoor unit described in (1) above.
(2) The second terminal block fixing plate 30 is formed on the back surface of the first fixing surface.
Then, the wiring connected to the first terminal block (corresponding to the first main terminal block 20a and the second main terminal block 20b) and the wiring connected to the second terminal block (corresponding to the sub terminal block 20c) There is no overlap in plane. Accordingly, the complexity of the wiring is eliminated and the work efficiency is improved.

Moreover, the outdoor unit according to Embodiment 1 is the outdoor unit described in (1) or (2) above.
(3) The terminal block opening 21d is opened in the first terminal block fixing plate 21, and the second terminal block fixing plate 30 is in the terminal block opening 21d when viewed from the direction perpendicular to the first fixing surface. The second terminal block is disposed so as to be positioned.
Then, when the wiring is connected to the second terminal block from the outside, the wiring is inserted into the terminal block opening 21d. Therefore, the wiring connected to the first terminal block and the wiring connected to the second terminal block are planar. There is no overlap. Accordingly, the complexity of the wiring is eliminated and the work efficiency is improved.

Further, the outdoor unit according to Embodiment 1 is the outdoor unit described in (1) to (3) above.
(4) The second fixed surface is configured closer to the first fixed surface at the lower end side of the second fixed surface than at the upper end side of the second fixed surface.
Then, since the first fixed surface and the second fixed surface are configured to open upward, wiring connected to the control board 10 and the extended function control board 31 from the first terminal block and the second terminal block. Do not overlap in a plane. Accordingly, the complexity of the wiring is eliminated and the work efficiency is improved.

Further, the outdoor unit according to Embodiment 1 is the outdoor unit described in (1) to (4) above.
(5) At least a first control board (corresponding to the control board 10) that controls the compressor and a second control board (corresponding to the extended function control board 31) that communicates with an external device, and the first terminal The base is connected to the first control board via the first wiring 16, and the second terminal base is connected to the second control board via the second wiring 33.
Then, the wiring connected to the control board 10 and the extended function control board 31 from the first terminal block and the second terminal block does not overlap in a plane. Accordingly, the complexity of the wiring is eliminated and the work efficiency is improved.

The outdoor unit according to Embodiment 1 is the outdoor unit according to (5), which is based on (3) above.
(6) The second wiring 33 is inserted through the opening 40 formed between the terminal block opening 21d and the second fixed surface.
Then, since the second wiring 33 is connected to the control board 10 and the extended function control board 31 through a different route from the first wiring 16, the wiring does not overlap in a plane. Accordingly, the complexity of the wiring is eliminated and the work efficiency is improved.

Further, the outdoor unit according to Embodiment 1 is the outdoor unit described in (4) to (6) on the premise of (3) and (3) above.
(7) The first terminal block fixing plate 21 is formed with an air opening 21e adjacent to the terminal block opening 21d and through which air flows.
Then, the air for cooling the control board 10 and the extended function control board 31 flows smoothly from the air opening 21e into the inside of the housing 1, so that the cooling efficiency of the control board can be improved.

1 casing, 1a top panel, 1b front panel, 1c back panel, 1d side panel, 1e bottom plate, 1f wiring opening, 2 grill, 3 service cover, 3a louver section, 4 valve cover, 5 separator, 6 blower, 7 Heat exchanger, 8 Compressor, 9 Control unit, 10 Control board (corresponding to the first control board of the present invention), 11 Substrate support member, 12 Heat radiation part, 13 Heat radiation part support material, 14 Electrical product support material , 14a L-shaped construction surface, 14b bottom plate surface, 14c first opening, 14d second opening, 15 heat radiation part protection member, 16 first wiring, 20a first main terminal block (corresponding to the first terminal block of the present invention) 20b second main terminal block (corresponding to the first terminal block of the present invention), 20c sub terminal block (corresponding to the second terminal block of the present invention), 20d mounting piece, 0e terminal identification label, 20y board connection terminal, 20z external connection part, 21 first terminal block fixing plate, 21a main plate, 21b first rib, 21c second rib, 21d terminal block opening, 21e air opening, 21f peripheral edge , 21A front (corresponding to the first fixed surface of the present invention), 21B back, 22 screws, 30 second terminal block fixing plate, 30a inclined plate, 30b support plate, 30c mounting piece, 30d spot welding, 30e mounting hole , 30f positioning protrusion, 30g end, 30A front (corresponding to the second fixed surface of the present invention), 30B rear surface, 31 extended function control board (corresponding to the second control board of the present invention), 32 extended board support member 33, second wiring, 40 openings, 50 driver pits, 50a clearance, 100 terminal block fixing device, A send Cabin, B machine room.

Claims

A first terminal block and a second terminal block arranged side by side in the vertical direction;
A terminal block fixing device comprising: a first terminal block fixing plate to which the first terminal block is mounted; and a second terminal block fixing plate to which the second terminal block is mounted;
The terminal block fixing device is
A first fixing surface of the first terminal block fixing plate to which the first terminal block is fixed;
A second fixing surface of the second terminal block fixing plate to which the second terminal block is fixed;
The outdoor unit in which the first fixed surface and the second fixed surface are configured at different angles.
The outdoor unit according to claim 1, wherein the second terminal block fixing plate is formed on a back surface of the first fixing surface of the first terminal block fixing plate.
The first terminal block fixing plate has a terminal block opening,
The said 2nd terminal block fixing plate is arrange | positioned so that the said 2nd terminal block may be located in the said terminal block opening seeing from the direction perpendicular | vertical with respect to the said 1st fixing surface. Outdoor unit.
The first fixing surface according to any one of claims 1 to 3, wherein the second fixing surface is configured closer to the first fixing surface than to an upper end side of the second fixing surface on a lower end side of the second fixing surface. Outdoor unit.
A first control board that controls at least the compressor, and a second control board that communicates with an external device;
The first terminal block is connected to the first control board via a first wiring,
The outdoor unit according to any one of claims 1 to 4, wherein the second terminal block is connected to the second control board via a second wiring.
The outdoor unit according to claim 5, which is dependent on claim 3, wherein the second wiring is inserted through an opening formed between the terminal block opening and the second fixed surface.
7. The first terminal block fixing plate is provided with an air opening adjacent to the terminal block opening and through which air flows, and any one of claims 4 to 6 dependent on claim 3. The outdoor unit described in.