JP3198259B2 - Outdoor unit of refrigerant heating type 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 a refrigerant heating / cooling machine having an improved layout of components.

[0002]

2. Description of the Related Art An outdoor unit of a refrigerant heating type air conditioner is
Conventionally, it is configured as shown in FIGS. In the figure, reference numeral 1 denotes a rectangular box-shaped housing, in which a partition plate 2 is provided.

[0003] The partition plate 2 is formed at a predetermined height from the bottom of the casing to a substantially middle portion in the vertical direction of the casing, and partitions the inside of the casing 1 to the left and right. The upper end of the partition plate 2 is connected to a side end of the upper base plate 3 which is parallel to the upper surface of the housing at a predetermined interval and extends from the upper end of the partition plate to the left side surface of the housing.

A space surrounded by the casing 1, the partition plate 2 and the upper base plate 3 is called a heat exchange chamber 4, and an outdoor heat exchanger (not shown) and an outdoor fan 5 face each other. Placed.

[0005] The space adjacent to the heat exchange chamber 4 is called a machine room 6, in which a compressor 7, a suction cup 8 and connection pipes 9 are accommodated. A plurality of packed valves 10 for connecting to a refrigerant pipe extending from an indoor unit (not shown) protrude from a right side surface of the housing 1 which is a side of the machine room 6.

Also, on the front of the housing 1 at the top of the machine room 6,
A control board 11 and a connector 12 are attached, and are electrically connected to electric components arranged in the outdoor unit. A refrigerant heating unit 13 is disposed on the back of the control board 11 and over the machine room 6 and the heat exchange room 4.

[0007] In the refrigerant heating unit 13, a combustor 14 is disposed substantially at the center in the left-right direction, and a refrigerant heater 15 is connected to the left side of the combustor. Actually, the combustor 14 and the refrigerant heater 15 are mounted on the upper base plate 3. A combustion blower 16 is connected to the right side of the combustor 14,
The nozzle 17 and the spark plug 1 are provided in front of the combustor 14.
8 protrudes.

A fuel supply pipe 19 is connected to the nozzle 17. The fuel supply pipe 19 is connected to the control board 11
Extend to the right side of the housing 1 through the rear side of
It is folded in turns. On the other hand, a fuel supply device 20 including a proportional valve, a solenoid valve, and the like is attached to a rear portion of the housing,
Here, the fuel supply pipe 19 is connected.

The fuel supply device 20 is provided with a hose joint 21 projecting outside the housing 1, and a frame rod 22 is provided on an upper surface of the combustor 14. A protective device 22 such as a temperature fuse or a heat prevention thermostat is provided on the upper surface of the refrigerant heater 15, and an exhaust duct 23 is connected to the left side of the refrigerant heater 15, and is attached to the front of the heat exchange chamber. The exhaust top 24 is communicated via an exhaust pipe 25.

An outdoor unit is constructed in this manner, and by driving the compressor 9, an outdoor heat exchanger is provided.
Refrigerant flows through an unillustrated indoor heat exchanger to perform a cooling operation or the like.

During the heating operation, the refrigerant is guided to the refrigerant heater 15 of the refrigerant heating unit 13, the fuel supply device 20 is opened, and the combustion blower 16 operates to perform the combustion action in the combustor 14. .

The refrigerant guided to the refrigerant heater 15 absorbs the heat of combustion of the combustor 14 and rises in temperature. Therefore, the refrigerant evaporation temperature in the refrigeration cycle increases, and the set heating temperature can be reliably obtained.

[0013]

In this outdoor unit, there is no problem in operation as a refrigerant heating type air conditioner, but there is a required improvement in the arrangement of components of the outdoor unit itself. .

[0014] As an example, it is desirable to reduce the size of the housing, while it would be very advantageous if the heat exchange area of the outdoor heat exchanger could be increased. In the configuration of the conventional outdoor unit, a refrigerant heating unit 13 is disposed above the heat exchange chamber 4 and the machine chamber 6. In particular, since the outdoor heat exchanger is disposed in the heat exchange chamber 4, the height of the heat exchange chamber is larger than the height of the machine room 6 in which the compressor 7 and the piping 9 are accommodated. Become.

The upper base plate 3 is mounted on the upper part of the heat exchange chamber 4 having a large height, and the refrigerant heating unit 1
3 and the combustor 14 and the refrigerant heater 15 are connected and mounted.
Is increased in height, which results in suppression of miniaturization.

In order to limit the height of the housing 1 to a predetermined value, it is conceivable to suppress the height of the heat exchange chamber 4, but in order to do so, the height of the outdoor heat exchanger must be reduced. However, it is impossible to realize this because the heat exchange area and the heat exchange capacity are reduced.

The present invention has been made in view of the above circumstances, and an object of the present invention is to reduce the size of a housing by suppressing the height of the housing by changing the arrangement of the components. It is an object of the present invention to provide an outdoor unit of a refrigerant heating / cooling machine that can achieve both a reduction in parts cost by reducing the number of parts and an improvement in serviceability.

[0018]

According to the present invention, there is provided an outdoor unit of a refrigerant heating type air conditioner which satisfies the above-mentioned object. A partition plate for partitioning into two chambers, an outdoor heat exchanger and an outdoor fan arranged in the air heat exchange chamber, a compressor arranged in the machine room, and a fuel arranged in an upper portion of the compressor in the machine room to remove fuel. A fuel supply device to be supplied, a combustor for burning fuel guided from the fuel supply device in a combustion chamber formed therein, a combustion blower for sending combustion air to the combustion chamber of the combustor, and a combustor A refrigerant heater that guides the combustion gas burned in and heats a refrigerant pipe, a refrigerant heater is connected to a side of the combustor, and a combustion blower is connected to a lower part of the combustor; Characterized by having .

According to a second aspect of the present invention, in the first aspect, the housing is formed in a box shape, and the refrigerant heating unit is disposed facing the front surface of the housing, and houses electrical components and the like facing the upper surface of the housing. The electrical component box is arranged.

According to a third aspect of the present invention, in the first aspect, the burner of the refrigerant heating unit includes a burner assembly housed in a burner case, and the fuel supply device removes the burner assembly from inside the burner case. It is attached and fixed to the back surface of the burner case by a fixing tool inserted into the burner case.

According to a fourth aspect, in the first aspect, the partition plate includes a lower partition portion for partitioning a lower space of the machine room;
An upper partition section that partitions the upper space, and a connecting section that integrally connects the lower partition section and the upper partition section, and the connecting section has a wide step extending from the lower partition section side to the upper partition section side. It is characterized by being formed in a bent shape.

According to a fifth aspect of the present invention, in the fourth aspect, the refrigerant heating unit is provided in a first portion provided at a connecting portion of the partition plate.
One side portion is locked to the locking portion, and the other side portion is locked to a second locking portion provided around the wiring opening on the side surface of the housing.

According to a sixth aspect of the present invention, in the fourth aspect, the upper partition portion of the partition plate has an upper end edge provided with a gap from an upper surface portion of the housing, and the gap is provided in the gap. It is characterized in that a part is interposed.

By adopting the means for solving the above problems, in the first aspect of the invention, the overall configuration of the outdoor unit is limited, and the height of the housing is reduced. According to the second aspect of the present invention, the arrangement of the refrigerant heating unit with respect to the housing is limited, so that the number of components can be reduced and the configuration can be simplified.

According to the third aspect of the present invention, the serviceability is ensured by limiting the mounting structure of the fuel supply device. According to the fourth aspect of the present invention, the partition plate structure is limited to secure the minimum necessary space in each of the heat exchange chamber and the machine room.

According to the fifth aspect of the present invention, the structure for attaching the refrigerant heating unit to the housing is limited to ensure serviceability. According to the sixth aspect of the present invention, the arrangement of the electrical component box is limited, so that the space in the housing can be effectively used and the serviceability can be improved.

[0027]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1 and FIG. 2, an outdoor unit of a refrigerant heating type air conditioner is configured. The housing 30 as a unit main body is formed of a box that is formed in a rectangular shape in all of the front view, the side view, and the top view.

The inside of the housing 30 is partitioned into two left and right chambers by a partition plate 31 except for the upper part of the housing. That is, the upper edge of the partition plate 31 is spaced apart from the upper surface of the housing by a predetermined distance, and the inside of the housing 30 is not partitioned here.

A housing 30 partitioned by a partition plate 31
The left space inside is called an air heat exchange chamber 32 and the right space is called a machine room 33. If the partition plate 31 is further explained, a lower partition portion 31a that partitions the lower space of the air heat exchange chamber 32 and the machine room 33 and an upper partition portion 31b that partitions these upper spaces are integrated with each other via a connecting portion 31c. Linked to

With respect to the machine room 33, the lower partition 3
The width of 1a is formed to be narrower than the width of the upper partition 31b, so that the connecting portion 31c is bent and formed in a wide step shape from the lower partition 31a to the upper partition 31b. .

In the air heat exchange chamber 32, an outdoor heat exchanger 34 and an outdoor fan 35 are arranged. Machine room 3 above
3, a compressor 36 and piping 37 connected to the compressor 36 are arranged, and a refrigerant heating unit 38 described later is arranged above the compressor 36.

The outdoor heat exchanger 34 disposed in the air heat exchange chamber 32 has no upper and lower components, so that the height of the housing 30 can be reduced as described later. Regardless, the height dimension can be made higher than that of the conventional one, so that the heat exchange area can be increased.

The outdoor fan 35 is mounted and supported on a support (not shown) disposed on the front side of the housing 30, and the outdoor heat exchanger 34 is disposed on the suction side. The housing 30 is provided with a suction grill and a blow grill (not shown).

In the gap between the upper edge of the upper partition portion 31b of the partition plate 31 and the upper surface portion 30a of the housing 30, a part of an electrical component box 39 for housing electrical components and the like is interposed. That is, the electrical component box 39 is located above the refrigerant heating unit 38 disposed in the machine room 33 and at the top surface 30 of the housing.
a.

On one side of the electrical component box 39, cooling fins 40a are protruded. The cooling fin 40 a is directly attached to a component that dissipates high heat, such as a G. Tr (giant transistor), out of the electrical components, and projects from the upper end edge of the partition plate 31 into the air heat exchange chamber 32. I have. Therefore, heat is radiated into the room and cooled by the air flowing through the room.

A wiring terminal plate 40b is mounted on the other side of the electrical component box 39. A wiring opening 43 that can be opened and closed by a lid 42 is provided at an upper portion of the side surface of the housing 30 facing the wiring terminal plate 40b, and the electrical components in the electrical component box 39, the external city power supply, and the indoor unit It has terminals for wiring that are electrically connected.

The compressor 36 disposed in the machine room 33 is connected to the outdoor heat exchanger 34 via a refrigerant pipe (not shown) and is connected to the indoor heat exchanger in the indoor unit so as to form a refrigeration cycle. Is done.

A connecting portion 31c constituting the partition plate 31
Is provided with a first locking portion 41a for locking one side of the refrigerant heating unit 38. A second locking portion 41b for locking the other side of the refrigerant heating unit 38 is provided around the wiring opening 43. Further, the upper partition part 31
A third locking portion 41c that locks one side of the refrigerant heating unit 38 is provided at the upper end of b.

The refrigerant heating unit 38 is disposed so as to face the front portion 30 b of the housing 30. As shown in FIGS. 3 to 5, the refrigerant heating unit 38
4, a refrigerant heater 45, a fuel supply device 46, a combustion blower 47 and the like.

A refrigerant heater 45 is connected to a side portion of the combustor 44, and a combustion blower 47 is connected to a lower portion of the combustor 44. The fuel supply device 46 is connected to the back side of the combustor 44 as described later.

As described above, since the refrigerant heating unit 38 is made compact as a whole, there is no problem in disposing it at the upper part of the machine room 33. In particular, since the combustion blower 47 is connected to the lower part of the combustor 44, the compressor 3
6, and the width of the lower partition portion 31a of the partition plate 31 can be made smaller than the width of the upper partition portion 31b.

The combustor 44 has a burner case 48 divided into two parts. Inside the burner case 48, a box-shaped storage portion 49 having an open front surface is formed, and a front opening of the storage portion is closed by a lid portion 50 so as to be openable and closable.

A convex portion 50a formed by bending a plate is attached to the front side of the lid portion 50, and the refrigerant heating unit 38 is attached to a predetermined position in the housing 30 so that the housing front portion 30b , The housing front 30b and the combustor 44
To secure a gap.

A burner assembly 51 is attached to the back side of the lid 50, and the burner assembly 51 is stored in the storage 49 when the opening is closed by the lid 50. I have.

The burner assembly 51 will be described briefly.
This is composed of a mixer 52 and a secondary flame port cylinder 53 connected in series. The mixer 52 is provided at one end thereof with a premixed gas intake body which communicates with the fuel nozzle of the fuel supply device 46 and communicates with the air blow port of the combustion blower 47, and has a mixing chamber formed therein. It communicates with the container 52. Mixer 52
At the other end, a spout body having a spout is provided and communicates with the mixing chamber.

A burner head, which is a separate component, is combined with the above-mentioned spout body. Further, the spout body and the burner head are accommodated in a secondary flame port cylinder 53. A large number of flame ports are provided on the side wall of the secondary flame port cylinder 53, and a combustion chamber is formed inside.

An opening 54a communicating with the refrigerant heater 45 is formed on a side surface of the burner case 48, and an opening 54b communicating with the combustion blower 47 is formed on the lower surface.

The refrigerant heater 45 is closed on the side opposite to the opening 54a communicating with the combustor 44, and has an exhaust port on either the side near the closed surface or the front and rear surfaces. To form a square bottomed cylinder.

On the front and rear surfaces, a meandering pipe fixing groove 55 is provided, into which a part of a refrigerant pipe P constituting a refrigeration cycle is fitted. This refrigerant pipe P
It is securely mounted and fixed to the refrigerant heater 45 by a pressing plate (not shown).

Inside the refrigerant heater 45, a combustion passage (not shown) is formed, which is designed to guide the gas burned in the combustor 44 and effectively exchange heat. The exhaust pipe 56 is connected only to the front of the refrigerant heater 45 and communicates with the internal combustion passage.

The exhaust pipe 56 is provided with an exhaust gas rectifying plate 57 which is an exhaust gas rectifying means and bisects the inside. The distal end of the exhaust pipe 56 is connected to an exhaust top (not shown).

The fuel supply device 46 is composed of a combination of a solenoid valve 58 and a proportional valve 59 as shown in FIGS.
8 is attached and fixed.

To be more specific, the lid 50 is removed from the opening of the housing 49 constituting the combustor 44, and the burner assembly 51 is removed together with the lid. On the other hand, a packing 61 is inserted into a connection port body 60 protruding from the back side of the combustor 44, and a pipe-shaped connection portion 62 protruding from a side surface of the proportional valve 59 is inserted.

A mounting hole 63 is provided at a predetermined portion of the burner case 48, and a screw hole 65 is provided at a mounting seat 64 formed at the base end of the connection portion 62 of the proportional valve 59. A fuel supply device 46 is mounted and fixed to the back surface of the burner case 48 by screwing a mounting screw 66 as a fixing tool from the side.

As shown in FIGS. 1 to 5 again, the combustion blower 47 has a fan casing 69 in which a part of a fan motor 67 is exposed on one side and a fan 68 is housed therein, It consists of a combination with the air supply duct 70 to be connected.

The fan motor 67 is not shown, but
The stator is arranged inside and the rotor is arranged outside.
8, and the stator is mounted and fixed to a circuit board that also serves as a fixing device.

This is an outdoor unit of such a refrigerant heating type air conditioner. By driving the compressor 36, the refrigerant flows through the outdoor heat exchanger 34 and the indoor heat exchanger (not shown) to form a refrigeration cycle. A cooling operation or a heating operation is performed.

During a heating operation particularly under a condition where the outside air temperature is low, the refrigerant is guided to the refrigerant heater 45 of the refrigerant heating unit 38, the fuel supply device 46 is opened, and the combustion action is performed in the combustor 44. .

The outline of the combustion operation will be described.
The fuel is supplied from the fuel supply device 46 to the premixed air intake body of the above, and the combustion air is blown by the fan 68 of the combustion blower 47.

The fuel and the combustion air are mixed in a mixing chamber formed inside the mixer 52 to change into a mixed gas. This mixed gas is ejected from the burner head, and the secondary flame port cylinder 5
3 are led to the combustion chamber formed therein. Secondary air is introduced into the combustion chamber through a flame port, and mixes with the mixed gas and burns.

The refrigerant guided to the refrigerant pipe P attached to the refrigerant heater 45 absorbs the heat of combustion of the combustor 44 and rises in temperature. Therefore, the refrigerant evaporation temperature in the refrigeration cycle increases, and the set heating temperature can be reliably obtained.

In such an outdoor unit, the inside of the housing 30 is divided into two chambers, an air heat exchange chamber 32 and a machine chamber 33, by a partition plate 31, and an outdoor heat exchanger 34 and an outdoor fan 35 are provided in the air heat exchange chamber 32. The compressor 36 is disposed in the machine room 33.
And a refrigerant heating unit 38 disposed above the compressor and including a combustor 44, a refrigerant heater 45, a fuel supply device 46, a combustion blower 47, and the like, so that the height of the housing 30 is reduced. 30 miniaturization is obtained.

The housing 30 is formed in a box shape.
The electrical component box 39 is arranged facing the a, and the refrigerant heating unit 3 is located above the compressor 36 and facing the housing front 30b.
8, the arrangement of the refrigerant heating unit 38 with respect to the housing 30 is limited, so that the number of components is reduced and the configuration is simplified.

The refrigerant heater 45 for heating the refrigerant pipe P is connected to the side of the combustor 44, and the combustion blower 47 is arranged below the combustor 44. Contributes to reduction of height dimension.

The refrigerant heating unit 38 is disposed at the upper front side of the machine room 33, the fuel supply device 46 is disposed at the rear of the combustor 44, and the burner assembly 51 constituting the combustor 44 is removed to remove the inner surface of the burner case 48. From the side, it was mounted and fixed to the back of this burner case 48. Therefore, the attachment and detachment of the fuel supply device 46 can be easily performed, and the serviceability can be secured.

The partition plate 31 has a lower partition 31a for partitioning the lower space of the machine room 33 and an upper partition 31b for partitioning the upper space integrally connected via a connecting portion 31c. Since it is formed in a wide stepped shape from the partition part 31a side to the upper partition part 31b side, the minimum necessary space of each of the air heat exchange chamber 32 and the machine room 33 can be secured.

The refrigerant heating unit 38 is connected to the connecting portion 31.
c, the first locking portion 41a provided on the
Since it is attached and fixed by the second locking portion 41b provided around the periphery 3, the refrigerant heating unit 38 can be easily attached to and detached from the housing 30, and serviceability can be secured.

The upper partition portion 31b of the partition plate 31 has a gap at the upper end edge thereof with the housing upper surface portion 31a, and a part of the electrical component box 39 is interposed in the gap.
Get effective use of space in the space.

[0069]

As described above, according to the first aspect of the present invention, the interior of the housing is partitioned into the air heat exchange chamber and the machine room by the partition plate, and the outdoor heat exchanger and the outdoor fan are arranged in the air heat exchange chamber. And, in the machine room, a compressor and a refrigerant heater connected to a side of the combustor and a refrigerant heater connected to a combustion blower at the lower part of the combustor are arranged above the compressor. The size is reduced, the height of the housing is reduced, and the size of the entire outdoor unit can be reduced.

According to the second aspect of the present invention, the housing is formed in a box shape, and the electrical component box is disposed facing the upper surface, and the refrigerant is disposed above the compressor and facing the front surface of the housing. Since the heating unit is arranged, the number of parts can be reduced and the configuration can be simplified.

According to the third aspect of the present invention, the fuel supply device of the refrigerant heating unit is disposed at the rear of the combustor, the burner assembly constituting the combustor is removed, and the back surface of the burner case is removed from the inner side of the burner case. Since the fuel supply device is fixed to the fuel supply device, the serviceability of the fuel supply device can be ensured.

According to the fourth aspect of the present invention, the partition plate connects the lower partition portion and the upper partition portion integrally via the connecting portion, and connects the connecting portion from the lower partition portion side to the upper partition portion side. Since it is bent in a stepped shape having a wide width, the necessary minimum space of each of the heat exchange chamber and the machine room can be secured.

According to the fifth aspect of the present invention, the refrigerant heating unit is mounted and fixed via the first locking portion provided on the connecting portion and the second locking portion provided around the wiring opening. In addition, serviceability for the refrigerant heating unit can be ensured.

According to the sixth aspect of the present invention, the upper edge of the upper partition portion of the partition plate has a gap with the upper surface of the housing, and a part of the electrical component box is interposed in the gap. Effective utilization and improvement of serviceability for electrical component boxes are obtained.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention, and is a longitudinal sectional front view of an outdoor unit constituting a refrigerant heating type air conditioner.

FIG. 2A is a cross-sectional plan view of the outdoor unit according to the embodiment. (B) is a vertical side view of the outdoor unit.

FIG. 3 is a view for explaining an assembly configuration of a refrigerant heating unit according to the embodiment.

FIG. 4 is an exemplary exploded perspective view of the refrigerant heating unit according to the embodiment;

FIG. 5 is an exemplary exploded perspective view of the refrigerant heating unit according to the embodiment;

FIG. 6A is a plan view of an outdoor unit that constitutes a conventional refrigerant-heating type air conditioner. (B) is the front view which omitted some outdoor units.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 30 ... housing | casing, 32 ... air heat exchange room, 33 ... machine room, 31 ... partition board, 31a ... lower partition part, 31b ... upper partition part, 31c ... connection part, 34 ... outdoor heat exchanger, 35 ... outdoor fan, 36: compressor, 38: refrigerant heating unit, 44: combustor, 45: refrigerant heater, 46: fuel supply device, 47: combustion blower, 39: electric component box, 41a: first locking portion, 43 ... Wiring opening, 41b: second locking portion.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tetsuhiro Takano 336 Tatehara, Fuji City, Shizuoka Prefecture Inside the Toshiba Fuji Plant, Ltd. (72) Inventor Naotoshi Maeda 336 Tatehara Fuji City, Fuji, Shizuoka Prefecture Inside the Higashi Shiba Fuji Plant ( 72) Inventor Takao Ogawa 336 Tatehara, Fuji City, Shizuoka Prefecture Inside Toshiba FEC Co., Ltd. (56) References JP-A-8-13613 (JP, A) JP-A-56-42071 (JP, A) Kaihei 10-111045 (JP, A) Japanese Utility Model Hei 4-110327 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) F24F 5/00

Claims (6)

(57) [Claims] A housing, a partition plate for partitioning the inside of the housing into an air heat exchange room and a machine room, an outdoor heat exchanger and an outdoor fan arranged in the air heat exchange room, and the machine room A fuel supply device that is disposed above the compressor in the machine chamber and supplies fuel; and a combustor that burns fuel guided from the fuel supply device in a combustion chamber formed therein. A combustion blower that sends combustion air to the combustion chamber of the combustor; and a refrigerant heater that guides combustion gas burned in the combustor to heat a refrigerant pipe. An outdoor unit for a refrigerant heating / cooling / heating machine, comprising: a refrigerant heating unit connected to a heater and a combustion blower connected to a lower part of the combustor. 2. The housing is formed in a box shape, the refrigerant heating unit is arranged facing a front surface of the housing, and an electrical component box for housing electrical components and the like is arranged facing the upper surface of the housing. The outdoor unit of a refrigerant heating / cooling / heating machine according to claim 1, wherein: 3. The burner of the refrigerant heating unit includes a burner assembly housed in a burner case, and the fuel supply device removes the burner assembly from the burner case and inserts the burner assembly into the burner case. The outdoor unit of a refrigerant heating / cooling / heating machine according to claim 1, wherein the fixing unit is attached to and fixed to a back surface of the burner case. 4. A partition plate for partitioning a lower space of a machine room, an upper partition portion for partitioning an upper space,
The lower partition portion and the upper partition portion are integrally formed with a connecting portion for connecting the lower partition portion and the upper partition portion, and the connecting portion is formed to be bent in a wide step shape from the lower partition portion side to the upper partition portion side. The outdoor unit of the refrigerant heating / cooling / heating machine according to claim 1. 5. The refrigerant heating unit has one side locked by a first locking portion provided at a connecting portion of the partition plate,
The outdoor unit for a refrigerant heating / cooling / heating machine according to claim 4, wherein the other side is locked by a second locking portion provided around the wiring opening on the side surface of the housing. 6. An upper partition portion of the partition plate is provided with an upper end edge provided with a gap from an upper surface portion of a housing, and a part of an electrical component box accommodating electrical components and the like is interposed in the gap. The outdoor unit of the refrigerant heating / cooling machine according to claim 4, characterized in that: