JP2000171062A - Outdoor unit and air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance an efficiency of an assembling work of an outdoor unit, to compress a manufacturing cost and to improve maintainability. SOLUTION: A locking pawl to be locked to an upper part of an outdoor heat exchanger 22 is provided at an upper part of a fin guard 26. Before a top plate 21b is mounted at a side panel 21a for constituting a housing 21 in an assembling work of an outdoor unit, the pawl is locked to the upper part of the exchanger 22, the guard 26 is disposed along the exchanger 22, and the plate 21b is mounted. Thus, a work required for a labor hour of deforming and mounting the guard 26 is eliminated, and operability can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outdoor unit and an air conditioner that provide a comfortable indoor environment by heating or cooling.

[0002]

2. Description of the Related Art An air conditioner is composed of two major components, an indoor unit and an outdoor unit. Each of these units includes an indoor heat exchanger and an outdoor heat exchanger that perform heat exchange between the refrigerant and the indoor air and between the refrigerant and the outdoor air.

[0003] The indoor heat exchanger and the outdoor heat exchanger are components that constitute a refrigerant circuit by adding other components such as a compressor and an expansion valve. Refrigerant physically circulates through this circuit, so that it is thermally high-temperature, high-pressure gas, low-temperature,
The cooling and heating of the room will be realized by following the circulation process of the state change of the high-temperature high-pressure liquid and the low-temperature low-pressure liquid. The cooling and heating of the room is directly realized by heat exchange between the refrigerant in the indoor heat exchanger and room air.

[0004] By the way, during the heating operation, it is realized by sending the refrigerant converted into a high-temperature and high-pressure gas by the compressor to the indoor heat exchanger and exchanging heat with the indoor air to condense and liquefy. During cooling operation, high-temperature and high-pressure gaseous refrigerant is sent to an outdoor heat exchanger to exchange heat with outdoor air and condensed into high-temperature and high-pressure liquid refrigerant. The liquid refrigerant is delivered to the indoor heat exchanger as a liquid refrigerant, and is exchanged with room air to evaporate and vaporize.

[0005]

The above air conditioner has the following problems. (Problem 1) In the outdoor unit, as shown in FIG.
On the side surface of the housing 2 where the outdoor heat exchanger 1 faces the outside, a fingering (heat exchanger protection surface material) 3 for protecting the outdoor heat exchanger 1 from an unexpected impact from the outside is provided. . This fingered 3 has a lower edge inserted between the outdoor heat exchanger 1 and the edge of the base 2c, and an upper edge inserted between the outdoor heat exchanger 1 and the top plate 2b. Attached to. By the way, in assembling the outdoor unit, when attaching the finger 3, first attach the top plate 2 b to the side panel 2 a and then insert the lower edge between the outdoor heat exchanger 1 and the base 2 c. The outdoor heat exchanger 1 and the top plate 2 are deformed while the fingered 3 itself is deformed.
b and the upper edge is inserted. for that reason,
The workability is poor compared to other assembling work, and this is one of the factors that hinders an increase in efficiency in assembling the outdoor unit.

(Problem 2) The fingered is provided with a sensor holder to which an outside air temperature sensor connected to an outdoor unit control unit is attached. The sensor holder is provided integrally with the finger on one side of the finger surface, and the outside air temperature sensor is drawn out from between the finger and the side panel and housed in the sensor holder. In assembling the outdoor unit, when attaching the finger, the outside air temperature sensor is drawn out from the outdoor unit control unit in advance, and after the finger is attached, the outside air temperature sensor is stored in the sensor holder. At this time, if the connection cord of the outside air temperature sensor is caught between the side panel and the fingered, there is a possibility that the wire may be broken in the worst case. Therefore, it is necessary to pay close attention to the attachment of the fingered. Therefore, the workability is poor as compared with other assembling work, and this is one of the factors that hinder the improvement of efficiency in assembling the outdoor unit. In addition, when the outdoor unit is maintained, the outdoor unit control unit is often taken out, but in that case, the finboard must be removed before the outdoor unit control unit can be taken out, and the maintenance is poor. Is also a problem.

(Problem 3) The housing 2 includes a side panel 2a.
And a top plate 2b attached to the upper part, and a base 2c installed at the lower part. However, since the side panel 2a is not provided at the part where the finger 3 is attached, the top part corresponding to this part is provided. It is pointed out that the plate 2b does not have sufficient strength and may be deformed by an unexpected impact.

(Problem 4) The outdoor unit is provided with a propeller fan (outdoor fan) 4 for sucking outside air into the housing through the outdoor heat exchanger 1. Normally, the outdoor heat exchanger 1 is arranged along the back surface of the outdoor unit, and the propeller fan 4 is arranged on the front surface and blows out the outside air sucked into the housing. The outdoor unit is installed outdoors between the indoor unit and the outer wall of the house, with the back surface facing the outer wall, with a space (at least 10 cm or more) between the indoor unit and the outer wall w to ensure a sufficient flow of outside air. You. By the way, the size of the air conditioner has been reduced due to the recent housing situation, but the outdoor unit has to secure the space between the rear surface and the outer wall w as described above in addition to the size of the outdoor unit itself. At present, it is difficult to reduce the size including installation space.

The present invention has been made in view of the above circumstances, and has the following objects. (A) In order to cope with the above problems 1 and 2, the efficiency of assembling the outdoor unit is improved, the manufacturing cost is reduced, and the maintainability is improved. (B) In response to the third problem, the outdoor unit is improved in strength against an external impact. (C) To reduce the size including the installation space of the outdoor unit in response to the above-mentioned problem 4.

[0010]

As means for solving the above-mentioned problems, an outdoor unit and an air conditioner having the following configuration are employed. That is, the outdoor unit according to claim 1 includes an outdoor heat exchanger that exchanges heat between outdoor air and a refrigerant, a compressor that sends refrigerant to the heat exchanger, the outdoor heat exchanger, and the compressor. And a housing that is disposed on a side surface of the housing along the outside of the outdoor heat exchanger to allow air to flow to the outdoor heat exchanger and protect the outdoor heat exchanger. An outdoor unit comprising a heat exchanger protective face material, wherein a locking claw to be locked to the outdoor heat exchanger is provided above the heat exchanger protective face material. .

In the above outdoor unit, in the assembling work of the outdoor unit, before attaching the top plate to the side panel constituting the housing, the locking claw is locked to the outdoor heat exchanger, and the protective face material for the heat exchanger is provided. Is placed along the outdoor heat exchanger, and the top panel is attached to the side panel. This eliminates the time-consuming work of deforming and attaching the heat-exchange protection surface material as in the related art, thereby improving workability.

[0012] The outdoor unit according to the second aspect is the first aspect.
In the outdoor unit described above, a spacer portion interposed between the top plate attached to the housing and the outdoor heat exchanger is provided above the heat exchanger protective face material. Features.

[0013] In the outdoor unit, the spacer is interposed between the top plate and the outdoor heat exchanger, so that the top plate is supported from below by the outdoor heat exchanger via the spacer. Thereby, sufficient strength is ensured for the top plate even in a portion where the side panel constituting the housing is not provided.

The outdoor unit according to the third aspect is the second aspect.
The outdoor unit according to the above aspect, wherein the spacer portion is integrally formed with the heat exchanger protective surface material, and the spacer portion is formed with a stolen portion.

In the outdoor unit described above, since the spacer portion is provided with a digging portion, the amount of the heat exchanger protective face material having the spacer portion is reduced. This allows
Since the procurement cost of the heat exchanger protective face material is reduced, the production cost of the air conditioner can be reduced.

According to a fourth aspect of the present invention, an outdoor unit for exchanging heat between outdoor air and a refrigerant, a compressor for sending a refrigerant to the heat exchanger, and an operation of the compressor are controlled. An outdoor unit control unit, an outside air temperature sensor connected to the outdoor unit control unit via a connection cord to measure an outside air temperature, and a housing in which the outdoor unit control unit, the outdoor heat exchanger and the compressor are housed. A heat-exchange protection surface material disposed on a side surface of the housing along the outside of the outdoor heat exchanger to allow air to flow to the outdoor heat exchanger and protect the outdoor heat exchanger; An outdoor unit comprising a sensor holder for accommodating the outside air temperature sensor, wherein the sensor holder is provided above the heat exchanger protective face material.

In the above outdoor unit, in assembling the outdoor unit, before attaching the top plate to the housing, the outdoor air temperature sensor connected to the outdoor unit control unit is provided.
After inserting into the sensor holder beyond the upper part of the heat exchanger protective face material, the top plate is attached to the side panel constituting the housing. As a result, an obstacle such as the connection cord of the outside air temperature sensor being sandwiched between the side panel and the heat exchanger protective surface material as in the related art is eliminated, and workability can be improved. Further, when the outdoor unit is maintained, the outdoor unit control section can be taken out without removing the heat exchanger protective face material, thereby improving maintainability.

The outdoor unit according to the fifth aspect is the fourth aspect.
In the outdoor unit described above, the sensor holder is formed in a basket shape surrounding the outdoor air temperature sensor, and is disposed at a position protruding from a flow passage of air to the outdoor heat exchanger.

In the above outdoor unit, the sensor holder is formed in a cage shape and is disposed at a position protruding from the air passage to the outdoor heat exchanger, so that the outside air sucked into the housing touches the outside air temperature sensor. It becomes easier and more accurate temperature measurement becomes possible.

According to a sixth aspect of the present invention, there is provided an outdoor unit for exchanging heat between outdoor air and a refrigerant, a compressor for sending a refrigerant to the heat exchanger, the outdoor heat exchanger and the compressor. And a heat exchanger disposed on a rear surface of the housing along the outdoor heat exchanger to allow air to flow to the outdoor heat exchanger and to protect the outdoor heat exchanger. An outdoor unit comprising a dexterity protection surface material, wherein the back surface is three-dimensionally constituted by at least two planes.

In the above-mentioned outdoor unit, since the back surface of the housing is three-dimensionally formed by at least two planes, the area for sucking outside air into the housing is enlarged, so that the outdoor unit is located close to the outer wall surface of the house. Even if you set it up,
It is possible to secure an air suction amount equal to or greater than that of the conventional case. Thereby, the space between the outer wall surface and the outdoor unit can be reduced, and the installation space for the outdoor unit can be narrowed.

The outdoor unit according to the seventh aspect is the sixth aspect of the present invention.
The outdoor unit according to any one of the preceding claims, wherein the outdoor heat exchanger is formed according to the shape of the rear surface.

In the above-mentioned outdoor unit, the outdoor heat exchanger can be made larger by forming the outdoor heat exchanger so as to conform to the three-dimensional shape of the rear surface of the housing with the enlarged suction area. The cooling and heating capacity can be improved.

[0024] The air conditioner according to claim 8 is characterized in that:
An outdoor unit according to 2, 3, 4, 5, 6, or 7, and an indoor unit including an indoor heat exchanger that exchanges heat between indoor air and a refrigerant and an indoor fan that circulates indoor air. It is characterized by being performed.

In the above-mentioned air conditioner, the efficiency of assembling the outdoor unit is improved, the manufacturing cost is reduced,
Improvement of maintainability, improvement of the strength of the outdoor unit against external impact, and downsizing including the installation space of the outdoor unit can be achieved.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of an indoor unit and an air conditioner according to the present invention will be described below with reference to FIGS. FIG. 1 is an explanatory diagram showing the overall configuration of the air conditioner. The air conditioner is the indoor unit 1
0 and the outdoor unit 20. The indoor unit 10 and the outdoor unit 20 are connected by a refrigerant pipe 40 through which the refrigerant flows, an electric wiring (not shown), and the like. Two refrigerant pipes 40 are provided, and the refrigerant flows from the indoor unit 10 to the outdoor unit 20 on one side and flows from the outdoor unit 20 to the indoor unit 10 on the other side.

The indoor unit 10 has a base 11 and a front panel 12 integrally formed. The base 11 is provided with various devices such as a plate fin & tube type indoor heat exchanger 13 and a substantially cylindrical cross flow fan (indoor fan) 14. The base 11 is provided with an indoor unit control section 15 composed of various electric circuit elements in order to perform various operation controls and the like relating to the other indoor units 10. The indoor unit control section 15 is provided with an appropriate indicator 15a for displaying an operation status and an error mode. The indicator 15a is provided on the front panel
With 2a, it can be confirmed from outside. An installation plate 16 is provided behind the base 11, so that the indoor unit 10 can be installed on an indoor wall or the like.

The front panel 12 has a suction grill (suction port) 12b formed on each of the front and top surfaces. The indoor air (room air) is supplied to these suction grills 12b.
Thereby, the air is sucked into the indoor unit 10 from multiple directions. Incidentally, an air filter 17 is provided behind the suction grill 12b, and functions to remove dust such as sucked air. Also, front panel 1
2, an air outlet 12c is formed below the air outlet 2, from which warmed or cooled air is blown out. The air suction and air blowing are performed by rotating the cross flow fan 14.

The indoor unit 10 is provided with a ventilator for sucking air inside the room and discharging the air outside the room. This ventilator includes a ventilation fan 18 dedicated to ventilation, a ventilation inlet 12d dedicated to ventilation opened in the front grille 12, and a ventilation hose 19. A ventilation inlet 12d is provided on the suction side of the ventilation fan 18. Communication, ventilation fan 1
One end of a ventilation hose 19 is connected to the discharge side of 8.
In the ventilation operation, the ventilation fan 18 is operated to suck the room air from the inlet 12d, so that the sucked room air is discharged outside the room through the ventilation fan 18 and the ventilation hose 19. The other end of the ventilation hose 19 is
The refrigerant pipes 40, 40 covered with a heat insulating material, electric wiring, and a drain hose are opened outside through a sleeve (not shown) provided through a wall on which the indoor unit 10 is installed.

The indoor unit 10 includes a remote controller 41 as an operation unit for performing various driving operations. The remote controller 41 is provided with various switches and the like, and can transmit an operation signal of the air conditioner to a receiving unit (not shown) of the indoor unit control unit 15. Note that the operation of the air conditioner can be partially performed by switches (not shown) provided at appropriate places in the indoor unit.

The outdoor unit 20 includes an outdoor heat exchanger 22, a propeller fan 23, a compressor 24, an outdoor unit controller 25, and the like in a housing 21. The outdoor heat exchanger 22 is configured by a refrigerant pipe having a number of plate-shaped fins around the heat exchanger, and realizes heat exchange between the refrigerant and outdoor air. The propeller fan 23 always takes in new air into the housing 21 by generating an airflow that flows from the back to the front inside the housing 21 to improve the heat exchange efficiency in the outdoor heat exchanger 22. It is provided in.

The back of the outdoor unit 20 where the outdoor heat exchanger 22 faces the outside, and the propeller fan 2
In the front where 3 faces the outside,
6 and a fan guard 27 are provided. The finger 26 is provided so that the plate-shaped fins are not damaged by an unexpected external impact. Similarly, the fan guard 27 is provided for the purpose of protecting the propeller fan 23 from external impact.

The compressor 24 converts a low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gaseous refrigerant and discharges the refrigerant. The compressor 24 plays a central role in the components constituting the refrigerant circuit. Incidentally, the refrigerant circuit is, in addition to the compressor 24, the indoor heat exchanger 13, the outdoor heat exchanger 22,
A refrigerant pipe 40, an expansion valve, and a four-way valve (the expansion valve and the four-way valve are not shown) for regulating the flow direction of the refrigerant are generally constituted.
This is a circuit that circulates between zero and zero.

The outdoor unit control unit 25 controls the operation of the propeller fan 23, the compressor 24, and other various devices provided in the outdoor unit 20, and is composed of various electric circuit elements. .

In addition to the above, the outdoor unit 20 is provided with a base 28 for supporting the side panel 21a and avoiding the influence of external vibration and the like. In addition, a side surface of the side panel 21a close to the compressor 24 is provided with a removable maintenance panel 29 for performing maintenance or the like of the compressor 24.

In the following, the operation of the air conditioner having the above configuration will be described for each of the heating operation and the cooling operation. First, during heating operation,
The refrigerant converted into a high-temperature and high-pressure gas by the compressor 24 is sent to the indoor heat exchanger 13 of the indoor unit 10 through the refrigerant pipe 40. In the indoor unit 10, the cross flow fan 1
Heat is given from the high-temperature and high-pressure gaseous refrigerant passing through the indoor heat exchanger 13 to the room air taken in from the suction grill 12b by 4. This allows the front panel 12
Warm air is blown out from the lower outlet 12c. At the same time, the high-temperature and high-pressure gas refrigerant is condensed and liquefied in the indoor heat exchanger 13, and becomes a high-temperature and high-pressure liquid refrigerant.

The high-temperature and high-pressure liquid refrigerant is again supplied to the refrigerant pipe 4.
In the process of passing through the expansion valve (not shown) in the outdoor unit 20 through 0, the pressure is reduced to a low-temperature and low-pressure liquid refrigerant, which is sent to the outdoor heat exchanger 22. In the outdoor unit 20, the low-temperature and low-pressure liquid refrigerant passing through the outdoor heat exchanger 22 takes heat from fresh outdoor air taken into the housing 21 by the propeller fan 23. As a result, the low-temperature and low-pressure liquid refrigerant evaporates and becomes a low-temperature gas refrigerant. This is sent to the compressor 24 again, and the above process is repeated.

Next, during the cooling operation, the refrigerant flows through the refrigerant circuit in a direction opposite to the above. That is, the refrigerant converted into a high-temperature and high-pressure gas by the compressor 24 passes through the refrigerant pipe 40 and is sent to the outdoor heat exchanger 22, where the air is given heat and condensed and liquefied to become a high-temperature and high-pressure liquid refrigerant. The high-temperature and high-pressure liquid refrigerant is reduced in pressure in the process of passing through an expansion valve (not shown), becomes low-temperature and low-pressure liquid refrigerant, and is sent to the indoor heat exchanger 13 again through the refrigerant pipe 40. The low-temperature and low-pressure liquid refrigerant here takes heat from room air to cool the room air, and the refrigerant itself evaporates and becomes a low-temperature and low-pressure gas refrigerant. This is sent to the compressor 24 again, and the above process is repeated.

These operations are performed by the indoor unit control unit 15 and the outdoor unit 2 housed in the indoor unit 10.
It is controlled by the outdoor unit control unit 25 housed in 0 cooperating.

Hereinafter, the characteristic portions of the present invention will be described. As described above, the plastic finger 26 is provided on the back surface of the outdoor unit 20. As shown in FIG. 2, a plurality of locking claws 26 a locked on the upper part of the outdoor heat exchanger 22 are provided on the finger 26 at intervals along the upper edge of the finger 26. As shown in FIG. 3A, the locking claw 26a is formed in a hook shape bent on the back surface side of the fingered 26, and the hook shape is a side cross section of the upper edge of the outdoor heat exchanger 22. It is formed in a downward U-shape according to the shape.

In addition, the upper part of the fingered 26 has a structure shown in FIG.
As shown in (b), a plurality of spacer portions 26b are provided between the top plate 21b attached to the side panel 21a and the upper part of the outdoor heat exchanger 22. Each spacer portion 26b is arranged one by one between each locking claw 26a. The upper surface of the spacer portion 26b is formed so as to be formed in parallel with the upper portion of the outdoor heat exchanger 22 when the fingered 26 is locked to the outdoor heat exchanger 22, and to protrude above the locking claw 26a. ing.

The spacer portion 26b is formed in a box shape as described above, and has a shape in which the lower surface facing the upper portion of the outdoor heat exchanger 22 is open, and the spacer portion 26b is formed on the lower surface facing the outdoor heat exchanger 22. Has a recess 26c as a meat steal portion.

In the air conditioner configured as described above, in the assembling work of the outdoor unit 20, the locking claw 26a is engaged with the upper part of the outdoor heat exchanger 22 before the top plate 21b is attached to the side panel 21a. After stopping, the fingered 26 is placed along the outdoor heat exchanger 22, and the top panel 21b is attached to the side panel 21a. This eliminates the time-consuming work of deforming and attaching the fingered 26 as in the related art, so that the workability can be improved.

In the above air conditioner, the top plate 2
By interposing the spacer 26b between the first heat exchanger 1b and the outdoor heat exchanger 22, the top plate 21b is supported by the outdoor heat exchanger 22 from below via the spacer 26b. Thereby, sufficient strength can be ensured for the top plate 21b even in a portion where the side panel 21a is not provided.

Further, a recess 26c is provided in the spacer portion 26b as a stolen portion, so that the spacer portion 26b
The material amount of the fingered 26 having the shape is reduced. Thereby, the procurement cost of the fingered 26 can be reduced, and the manufacturing cost of the air conditioner can be reduced.

Incidentally, the shapes of the locking claws 26a and the spacer portions 26b are not limited to those described in the above embodiment, and various shapes such as providing a spacer portion 26b above the locking claws 26a may be used. It is possible.

Next, a second embodiment of the indoor unit and the air conditioner according to the present invention will be described with reference to FIGS. The air conditioner in the present embodiment includes:
Since the outdoor unit 20 has a characteristic portion, and the overall configuration of the air conditioner is the same as that described in the first embodiment, only the characteristic portion will be described below.

As shown in FIG. 4, an outdoor air temperature sensor 25a for measuring the outdoor air temperature is connected to the outdoor unit control section 25 via a connection cord 25b. A sensor holder 26d that houses the outside air temperature sensor 25a is provided above the finger 26.

The sensor holder 26d is
Is formed in a basket shape surrounding the outside air temperature sensor 25a on the side of the front surface, and is disposed at a position protruding from the outer frame portion of the finger 26 into the air flow path to the outdoor heat exchanger 22. Has been established. The finger 26 is formed with a groove 26e into which the connection cord 25b is inserted from the back side toward the sensor holder 26d.

In the air conditioner configured as described above, when assembling the outdoor unit 20, FIG.
As shown in FIG.
After inserting it into the sensor holder 26d over the top of
The top plate 21b is attached to the side panel 21a. At this time, the connection cord 25b is arranged so as to fit into the groove 26e.

As described above, by disposing the sensor holder 25a above the finger 26, the trouble that the connection cord 25b is sandwiched between the side panel 21a and the finger 26 as in the related art is eliminated. Therefore, workability in the assembling work can be improved. In addition, when the outdoor unit 20 is maintained, the outdoor unit control unit 25 does not need to remove the finger 26.
Can be taken out, so that maintainability can be improved.

Further, since the sensor holder 26d is formed in a cage shape and is disposed at a position protruding from the air flow path to the outdoor heat exchanger 22, the outside air sucked into the housing 21 is detected by the outside air temperature sensor 25a. And the temperature can be measured more accurately.

Next, a third embodiment of the indoor unit and the air conditioner according to the present invention will be described with reference to FIGS. The air conditioner in the present embodiment includes:
Since the outdoor unit 20 has a characteristic portion, and the overall configuration of the air conditioner is the same as that described in the first embodiment, only the characteristic portion will be described below.

As shown in FIG. 6, the rear surface of the outdoor unit 20 to which the finger 26 is attached is chamfered 21e so that the corners on both sides protruding outward are cut in a vertical plane. When viewed from a horizontal cross section, the back surface is formed as a right-left symmetrical hexagon in which the lower portions of the legs of an equal leg trapezoid are bent in parallel. As described above, the rear surface of the outdoor unit 20 is formed in a convex shape by three planes, and the fingered 26 is formed in a shape in which both right and left sides are bent in accordance with the convex shape. Further, the outdoor heat exchanger 22 has an arcuate shape in which both the left and right sides are bent in accordance with the convex shape of the rear surface of the outdoor unit 20.

In the air conditioner configured as described above, the back surface of the outdoor unit 20 is formed in a convex shape by three planes, so that the outside air is sucked into the housing 21 as shown in FIG. Since the area is enlarged, the outdoor unit 20
Even if it is installed close to the outer wall surface W of the house, it is possible to secure an air suction amount equal to or greater than that of the related art. Thereby, the outer wall surface W and the outdoor unit 20
And the space for installing the outdoor unit 20 can be narrowed.

Further, by forming the outdoor heat exchanger 22 in a bow shape in accordance with the convex shape of the rear surface of the outdoor unit 20 having an enlarged suction area, it is possible to increase the size of the outdoor heat exchanger 22 itself. In addition, the cooling and heating capacity can be improved.

In the present embodiment, both sides of the back of the outdoor unit 20 are chamfered. However, for example, the upper or lower part of the back of the outdoor unit 20 may be chamfered in the lateral direction to similarly increase the suction area. Can be achieved.

[0058]

As described above, according to the outdoor unit according to the first aspect of the present invention, in the assembling work of the outdoor unit, the locking claw is locked to the outdoor heat exchanger.
By assembling the fingered along the outdoor heat exchanger and attaching the top plate to the side panel, the time-consuming work of deforming and attaching the fingered as in the past is eliminated, so assembling High efficiency in work can be achieved.

According to the outdoor unit of the second aspect, the spacer is interposed between the top plate and the outdoor heat exchanger, so that the top plate is supported by the outdoor heat exchanger via the spacer from below. Therefore, sufficient strength can be ensured on the top plate even in a portion where the housing is not provided, and deformation of the housing and damage to the outdoor unit can be prevented even with an unexpected impact.

According to the outdoor unit of the present invention, since the spacer portion is provided with the stolen portion, the amount of fingered material having the spacer portion is reduced, and the cost of procuring the fingered is reduced. The production cost of the air conditioner can be reduced.

According to the outdoor unit of the present invention, in assembling the outdoor unit, the outdoor temperature sensor connected to the outdoor unit control section is inserted into the sensor holder beyond the upper part of the finger, and then the housing is mounted. By attaching the top plate to the side panel that constitutes the above, the obstacle that the connection cord of the outside air temperature sensor is sandwiched between the side panel and the fingered as in the past is eliminated,
High efficiency in the assembly work can be achieved. Further, when the outdoor unit is maintained, the outdoor unit control unit can be taken out without removing the fingering, so that the maintainability can be improved.

According to the outdoor unit of the fifth aspect, the sensor holder is formed in a cage shape and is disposed at a position protruding from the air flow path to the outdoor heat exchanger, so that the outside air sucked into the housing is removed. Since it becomes easier to touch the outside air temperature sensor, more accurate temperature measurement can be performed.

According to the outdoor unit of the present invention, since the rear surface of the housing is three-dimensionally formed by at least two planes, the area for sucking outside air into the housing is enlarged, so that the outdoor unit can be housed. Even if it is installed close to the outer wall surface, it is possible to secure an air suction amount equal to or greater than that of the related art. Thereby, the space between the outer wall surface and the outdoor unit can be reduced, and the installation space for the outdoor unit can be narrowed.

According to the outdoor unit of the present invention, the outdoor heat exchanger can be made larger by forming the outdoor heat exchanger so as to conform to the three-dimensional shape of the rear surface of the housing having an enlarged suction area. Is made possible, whereby the cooling and heating capacity of the air conditioner can be improved.

According to the air conditioner of the eighth aspect, by providing the outdoor unit of the first, second, third, fourth, fifth, sixth or seventh aspect, it is possible to increase the efficiency and manufacture of the outdoor unit in assembling work. It is possible to reduce cost, improve maintainability, improve the strength of the outdoor unit against external impact, and reduce the size of the outdoor unit including the installation space.

[Brief description of the drawings]

FIG. 1 is a diagram showing a first embodiment according to the present invention, and is a perspective cross-sectional view showing an entire configuration of an air conditioner.

FIG. 2 is a perspective view showing a main part of a finger provided in the outdoor unit.

3A is a cross-sectional view taken along line IIIa-IIIa in FIG. 2, and FIG. 3B is a cross-sectional view taken along line IIIb-IIIb in FIG.

FIG. 4 is a view showing a second embodiment according to the present invention, and is a perspective view showing a main part of an outdoor unit.

FIG. 5 is a sectional view taken along line VV in FIG. 4;

FIG. 6 is a view showing a third embodiment according to the present invention, and is an exploded perspective view of an outdoor unit.

FIG. 7 is an explanatory diagram showing an installation state of an outdoor unit and an inflow of air into a housing.

FIG. 8 is a side sectional view showing a configuration of a conventional outdoor unit. It is a perspective view.

[Explanation of symbols]

 Reference Signs List 10 indoor unit 20 outdoor unit 21 housing 21a side panel 21b top plate 22 outdoor heat exchanger 23 propeller fan (outdoor fan) 24 compressor 25 outdoor unit control unit 25a outdoor temperature sensor 25b connection cord 26 fingered (protection for heat exchanger) 26a Locking claw 26b Spacer portion 26c Depression (thinning portion) 26d Sensor holder 27 Fan guard (protective surface material for outdoor fan) 40 Refrigerant piping

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Hiroshi Kamihara 3-1-1 Asahicho, Nishibiwajima-cho, Nishi-Kasugai-gun, Aichi Prefecture Inside Mitsubishi Heavy Industries, Ltd. Air Conditioning Works

Claims (8)

[Claims] An outdoor heat exchanger for exchanging heat between outdoor air and a refrigerant, a compressor for sending the refrigerant to the heat exchanger,
A housing in which the outdoor heat exchanger and the compressor are housed;
A heat exchanger protective surface material disposed on the side surface of the housing along the outside of the outdoor heat exchanger to allow air to flow to the outdoor heat exchanger and protect the outdoor heat exchanger. An outdoor unit comprising: an outdoor unit, wherein a locking claw that is locked to the outdoor heat exchanger is provided above the heat exchanger protective face material. 2. A spacer portion interposed between the top plate attached to the housing and the outdoor heat exchanger is provided above the heat exchanger protective face material. The outdoor unit according to claim 1, wherein 3. The outdoor unit according to claim 2, wherein the spacer portion is formed integrally with the heat exchanger protective face material, and the spacer portion is formed with a digging portion. 4. An outdoor heat exchanger that exchanges heat between outdoor air and a refrigerant, a compressor that sends refrigerant to the heat exchanger,
An outdoor unit control unit that controls the operation of the compressor, an outdoor temperature sensor connected to the outdoor unit control unit via a connection cord to measure an external air temperature, and the outdoor unit control unit;
A housing in which the outdoor heat exchanger and the compressor are housed, and arranged on a side surface of the housing along the outside of the outdoor heat exchanger to allow air to flow to the outdoor heat exchanger and An outdoor unit comprising: a heat exchanger protective face material for protecting an outdoor heat exchanger; and a sensor holder for housing the outside air temperature sensor, wherein the sensor holder is provided above the heat exchanger protective face material. An outdoor unit comprising: 5. The sensor holder according to claim 1, wherein the sensor holder is formed in a basket shape surrounding the outside air temperature sensor, and is disposed at a position protruding from a flow passage of air to the outdoor heat exchanger. 4. The outdoor unit according to 4. 6. An outdoor heat exchanger that exchanges heat between outdoor air and a refrigerant, a compressor that sends refrigerant to the heat exchanger,
A housing in which the outdoor heat exchanger and the compressor are housed;
An outdoor unit provided on a rear surface of the housing along the outdoor heat exchanger, the airflow unit allowing air to flow to the outdoor heat exchanger, and protecting the outdoor heat exchanger. An outdoor unit, wherein the back surface is three-dimensionally constituted by at least two planes. 7. The outdoor unit according to claim 6, wherein the outdoor heat exchanger is formed so as to conform to the shape of the rear surface. 8. The method of claim 1, 2, 3, 4, 5, 6, or 7.
An air conditioner comprising: the outdoor unit described above; an indoor unit including an indoor heat exchanger that exchanges heat between indoor air and a refrigerant, and an indoor fan that circulates indoor air.