JPH07208761A - Indoor unit of air conditioner - Google Patents

Abstract

PURPOSE:To provide an indoor device of an air conditioner in which a pipe connecting work during an installing work of a main body of an indoor device. CONSTITUTION:There is provided a main body 20 of a device comprised of an assembly of a front panel 21 and a rear plate 22. A heat exchanger 56 and a blower 50 are stored and arranged within the main body of the device. The front panel 21 is provided with an aeration passage constituting part 30 forming an air blowing aeration passage 29 together with the rear plate 22. A pipe storing cover 31. for use in shielding an auxiliary pipe 32 and the like to be connected to the heat exchanger is integrally and cooperatively arranged at the aeration passage constituting part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor unit of an air conditioner, and more particularly to improvement of a unit body.

[0002]

2. Description of the Related Art A commonly used air conditioner comprises an indoor unit installed in an air-conditioned room and an outdoor unit installed outdoors in a building connected via a refrigerant pipe or the like. The unit body of the indoor unit is often of the type that is attached and fixed to the wall surface of the air-conditioned room.

In the indoor unit, as shown in FIG. 7, a unit body 3 is formed by combining a front panel 1 and a rear plate 2, and a heat exchanger 4 is formed inside the unit body.
The blower 5 is housed and arranged.

As a recent tendency, as shown in the figure, the heat exchanger 4 is divided into a plurality of parts, and the blower 5 composed of a cross flow fan is bent around the rear plate 2 side. That is, the front panel 1 and the front panel 1 face each other in a state of being bent and formed.

The front panel 1 is provided with suction ports (not shown) on the front and upper surfaces so as to face the heat exchanger 4. An outlet 6 is formed at the lower part of the front surface together with the end of the rear plate 2.

The rear plate 2 is bent along the blower 5 at a substantially central portion in the vertical direction, and an outlet air passage 7 communicating with the outlet 6 is formed on the lower side. Then, this lowermost end portion is bent rearward, and the pipes are stored in the pipe storing portion 8 on the back surface side.

[0007]

Due to such a structure, there are many problems in workability particularly during installation and maintenance of the indoor unit. That is, normally, the auxiliary pipe 9 extending from the unit main body 3 is projected from the right side portion of the unit main body 3 to be connected to the external pipe, but it is protruded from the left side portion due to the wall surface of the air-conditioned room. In some cases, there is no choice but to connect with external piping.

In the case of taking out on the right side (right pipe), an auxiliary pipe 9 is housed in a pipe housing cover 8 formed at the lower end of the rear plate 2 to install the unit main body 3 and the auxiliary projecting from the right side. The tip of the pipe and the external pipe may be connected.

However, in the case of taking out on the left side (left piping),
Since the tip portion of the auxiliary pipe 9 is located on the rear side of the unit body 3, it is necessary to perform the connecting work with the external pipe on the rear face of the unit body 3.

Therefore, at the time of connection work, the unit body 3
It was necessary to hook the upper part of the above into the installation plate 10 and lift the lower part from the wall surface to make a gap, and put a hand in the gap to work.

In this way, particularly in the case of taking out on the left side, complicated and troublesome pipe connecting work is required, and
As described above, since the work is performed at a high place on the wall surface of the air-conditioned room, the work is performed in an unstable posture, resulting in extremely poor workability.

On the other hand, there is an operation of removing dust and mold attached to the fan of the blower 5 together with the heat exchanger 4 at the time of maintenance, which is preferably performed regularly. The same work for the heat exchanger 4 can be performed relatively easily because the heat exchanger is exposed by removing the front panel 1.

However, the blower 5 is in a state of being surrounded by the heat exchanger 4 except for the blowout port ventilation passage 6, and this ventilation passage is not large enough for the operator to handle. 4 must be carried out after the blower 5 is exposed to the extent that it becomes a troublesome work, and when the heat exchanger 4 is displaced, the pipe of the heat exchanger is deformed, and eventually the pipe is cracked. In some cases, the refrigerant may leak.

Further, when the unit main body 3 is attached and fixed to the wall surface of the air-conditioned room, an attached installation plate 10 is attached and fixed to the wall surface in advance, and the unit main body is attached and fixed to the installation plate.

Specifically, the rear plate 2 on which the heat exchanger 4 and the blower 5 are arranged is mounted and fixed to the installation plate 10, and the front panel 1 is hooked on the rear plate to form the unit main body 3 and The unit is installed.

However, due to the fitting relationship of the front panel 1 to the rear plate 2, the front panel is likely to be partially lifted from the rear plate, so that the rear plate is weakly engaged with the installation plate 10, and the rear plate itself is partially. It floats up and deforms.

Further, the outlet 6 is provided with a wind direction adjusting plate 11 so that the wind directions in the vertical direction and the horizontal direction can be adjusted respectively. These wind direction adjusting plates 11 are provided in the front and rear drain pans 12a and 12b before receiving the drain water generated in the heat exchanger 4.

In particular, since the rear drain pan 12b is provided integrally with the rear plate 2, there is no problem with this mounting workability.
The front drain pan 12a is separately manufactured and attached. Moreover, the wind direction adjusting plate 11 is attached to the lower surface side of the front drain pan 12a for assembly, and the drain pan itself has a narrow dimension in the depth direction in accordance with the thin heat exchanger 4 and is obliquely inclined. So, to assemble the wind direction adjustment plate 11 consisting of many parts here,
The work is troublesome.

Even if the front panel 1 is removed for maintenance, the front drain pan 12a remains as it is.
Since the wind direction adjusting plate 11 remains provided on the drain pan, it is impossible to work through the outlet 11.

The present invention has been made in view of the above circumstances. A first object of the present invention is to provide an air conditioner that facilitates pipe connection work during installation of the unit body and improves installation workability. To provide an indoor unit for the machine.

A second object is to provide an indoor unit for an air conditioner, in which maintenance workability for a fan is improved. A third object is to provide an indoor unit for an air conditioner in which the unit main body is more firmly attached and fixed to the installation plate to increase the rigidity of the unit main body.

A fourth object is to provide an indoor unit for an air conditioner which improves the assembling workability of the air flow direction adjusting plate located at the outlet and facilitates maintenance work using the outlet. To provide.

[0023]

In order to satisfy the first object, an indoor unit of an air conditioner according to claim 1 is a unit main body composed of an assembly of a front panel and a rear plate. In an indoor unit of an air conditioner in which a heat exchanger and a blower are accommodated and arranged, the front panel is provided with an air passage structure portion that forms an outlet air passage together with the rear plate, and the air passage structure portion further includes the air passage structure portion. It is characterized in that a pipe housing cover for shielding the pipes connected to the heat exchanger is continuously provided integrally.

According to a second aspect of the present invention, in the indoor unit of an air conditioner according to a second aspect, the size of the rear plate opening after the removal is performed with the front panel of the first aspect removed from the rear plate. However, even if it is small, the hand of the operator can be inserted, and if it is large, the blower fan can be taken out.

In order to satisfy the third object, the indoor unit of the air conditioner according to claim 3 is such that the pipe storage cover of the front panel according to claim 1 is for fixing the unit body to the wall surface of the air-conditioned room. It has a claw part.

In order to satisfy the fourth object, the indoor unit of the air conditioner according to claim 4 is provided with an air flow direction adjusting plate for adjusting the air flow direction of the blown air in the ventilation passage forming portion of the front panel according to claim 1. .

According to a fifth aspect of the present invention, the wind direction adjusting plate according to the fourth aspect is provided in the up-down air direction adjusting plate directly provided in the ventilation path forming portion, and in the up-down air direction adjusting plate. A horizontal airflow direction adjusting plate is provided.

In order to satisfy the same object, the airflow direction adjusting plate according to the fourth aspect of the invention is the airflow direction adjusting plate which is directly provided in the ventilation path forming portion, and the leftward and rightward airflow direction adjusting plate is provided with a vertical direction. And a wind direction adjusting plate.

[0029]

The operation of installing the unit main body on the wall surface of the air-conditioned room and the work of connecting the pipes and the necessary maintenance work on a regular basis can be easily performed.

[0030]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows the assembled indoor unit of the air conditioner, and FIGS. 2 and 3 show the indoor unit in a disassembled state.

The unit body 20 is composed of an assembly of a front panel 21 and a rear plate 22. Front panel 2 above
1 includes both side plate portions 23, 23 that are closed, and these side plate portions are integrally connected by a plurality of crosspiece portions 24 ....

The crosspieces 24 are located on the upper surface rear part, the front upper part, the front lower part and the lower surface rear part of the side plate part 23, and the mutual spaces of these crosspieces are the upper suction port 25a and the front suction part. It will be formed as the opening 25b and the outlet 26.

The upper suction port 25a of the front panel 21
A suction grill 27 is attached to the front side facing the front suction port 25b. A filter 28 is removably inserted on the back side of the grill along the suction grill 27 and on the front side of the front panel 21. That is, the filter 28 is the same as the outlet 2 provided on the front panel 21.
6 can be inserted and removed.

A part of the front panel 21 is extended as it is at both side portions of the blow-out port 26 and a portion along the lower end edge thereof to form a ventilation passage forming portion 30 constituting a blow-out port ventilation passage 29 described later. There is.

Then, the ventilation path forming portion 3 of the front panel 21.
0 and a lower end surface portion integrally extending from the end portion of the outlet 26 to the back side constitute a pipe storage cover 31. The auxiliary pipe 32, the drain hose 33, and the like are housed in the pipe housing cover 31.

A claw portion 34 is provided at the tip of the pipe storage cover 31.
Are provided integrally. The claw portion 34 is the unit body 2
When 0 is installed on the wall surface K of the air-conditioned room, it is locked to the installation plate 35 that is previously attached and fixed to the wall surface.

That is, the lower end portion of the installation plate 35 is bent forward and a claw portion locking hole 36 is provided therein to lock the claw portion 34. On the upper end portion of the installation plate 35, a locking piece 38 with which the locking portion 37 provided on the rear plate 22 is locked from above is provided.

On the other hand, an air flow direction adjusting portion 40 is provided at a position of the air passage forming portion 30 which faces the outlet air passage 29. Specifically, as shown in FIGS. 4A and 4B, the left and right louvers 41, which are a plurality of left and right air flow direction adjusting plates, and the frame 41a are integrated on the ventilation path forming portion 30 with a predetermined interval. And the left and right louvers 41 are formed on the shaft 4 formed between the upper and lower frames.
1b is formed via a PP hinge 41c, and the left and right louvers 41 are movable left and right about a shaft 41b.

The left and right louvers on both the left and right sides are connected by a connecting rod 42 with the center of the left and right louvers 41 as a boundary, and the left and right louvers connected by the connecting rods are simultaneously directed in the same direction. It will be.

A support plate 44 for vertically supporting the upper and lower louvers 43, which is a vertical airflow direction adjusting plate, is provided upright at the center of the frame 41a of the airflow direction adjusting unit 40. This support plate 44
Is bent forward in an inverted U shape and has a pivot hole 45 at its tip.

As shown in FIG. 5, the upper and lower louvers 43 are
Lever 4 with pins 46 projecting from the left and right sides and the center
7 is provided. The left and right pins 46 are loosely inserted into pivot holes 48 provided on both sides of the outlet 26, the central pin 46 is loosely inserted into the pivot holes 45 of the support plate 44, and the upper and lower louvers 43 are vertically moved. Is rotatably supported by.

As shown in FIGS. 1 to 3 again, the rear plate 22 is provided with mounting portions 51 for supporting the blower 50 at both side ends thereof. The blower 50 has a drive motor 52 supported by a mounting portion 51 on one side, a cross-flow fan 53 connected to a rotation shaft of the drive motor, and a shaft portion on the other end side of the cross-flow fan. Side mounting part 5
1 and a bearing member 54 attached to 1.

A rear drain pan 55 is integrally provided on the upper portion of the rear plate 22 along the width direction. The rear drain pan 55 is provided in a state of being obliquely inclined forward and supports a lower end portion on the back surface side of a heat exchanger 56 described later.

The lower portion of the rear drain pan 55 has a curved cross-sectional shape along the cross flow fan 53, and further extends, and the lower end portion of the rear drain pan 55 engages and connects with the tip of the ventilation passage forming portion 30 of the front panel 21. Is formed.

On the other hand, the front drain pan 57 is integrally installed over the tip of the mounting portion 51 formed on both sides of the rear plate 22. The front drain pan 57 is spaced apart from the step portion 22a by a predetermined distance and extends along the upper edge of the outlet 26 formed in the front panel 21 in the assembled state.

Therefore, the lower surface of the front drain pan 57 constitutes the outlet ventilation passage 29 together with the ventilation passage forming portion 30 of the front panel 21. The last drain pan 57
Are provided in a state of being inclined obliquely forward and support the lower end on the front side of the heat exchanger 56.

In the heat exchanger 56, a large number of fins are arranged side by side with a narrow gap, and the heat exchange pipes penetrate through these fins and the heat exchange pipes adjacent to each other at both ends of the fins. It is a so-called find tube type in which a U-bend portion is connected to form a meandering coolant conducting portion.

In this molding, a cut is made at a predetermined position (here, three places) on one side of each fin, and the heat exchange pipe is fixed by penetrating it, and then is bent and urged at the cut. The molded heat exchanger 56 is composed of four heat exchangers divided into upper and lower parts with a bent portion deformed from the cut portion as a boundary, and each heat exchanger is integrated in a state of being bent by end plates (not shown). Is composed of

While the heat exchanger 56 is arranged in the front and rear drain pans 55 and 57 and the end plates thereof are fixed to the upper portion of the mounting portion 51, the cross flow fan 53 of the blower 50 is blown out from the outlet. It flexes except the path 29. Further, the heat exchanger 56 is located at a portion facing the upper suction port 24a and the front suction port 24b provided on the front panel 21.

This is an indoor unit constructed in this way. By performing the refrigerating cycle operation for the heat exchanger 56 and driving the blower 50, the air to be conditioned indoor air is sucked in through the grill 27 and the filter 28 and the front panel. 23 are sucked into the unit main body 20 through the upper suction port 24a and the front suction port 24b, and the heat exchanger 5
Heat is exchanged by passing through 6.

The heat-exchanged air after the heat exchange is guided through the outlet ventilating passage 29 and blown out from the outlet 26 into the air-conditioned room. At this time, the left and right louvers 41 and the upper and lower louvers 4
With 3, the blowing direction can be set arbitrarily.

By adopting such an indoor unit, there are advantages as described below at the time of installation work or maintenance work on the left pipe. That is, at the time of installation work on the left pipe, the installation plate 35 is attached and fixed to the wall surface K of the air-conditioned room, and the rear plate 22 on which the heat exchanger 56 and the blower 50 are arranged is attached. After that, the auxiliary pipe 32 extending from the heat exchanger 56 is connected to an external pipe (not shown), the drain hoses 33 are connected to the front and rear drain pans 57 and 55, and the auxiliary pipes 32 extend along the lower end of the rear plate 22.

In this state, the auxiliary pipe 32 and the like are attached to the rear plate 22.
Since it is exposed without being shielded by the rear pipe, even if the connecting portion between the auxiliary pipe 32 and the external pipe is located on the rear side of the unit main body 20, such as the left pipe, the rear plate 22 is first Can be attached and fixed to the installation plate 35, and then the necessary pipe connection work can be performed visually. Even when working in a relatively unstable posture, that is, in a high place on the wall surface of the air-conditioned room, it can be performed easily and quickly.

After the piping work is completed, the front panel 21
Is attached to the rear plate 22 to assemble the unit main body 20.
Inevitably, when the pipe housing cover 31 of the front panel 21 comes to a position where the pipes 32 and 33 to which the pipe housing cover 31 is connected are shielded, the same function as the conventional one is provided.

When the front panel 21 is attached, the claw portion 34 provided at the tip of the pipe storage cover 31 is attached to the installation plate 3.
Since it is engaged with the pawl engaging hole 36 provided in the unit 5, the rear plate can be more firmly attached and fixed as compared with the conventional configuration in which the rear plate is engaged with the installation plate.
Be sure to regulate the lifting from the wall of the.

Since all of the wind direction adjusting section 40 consisting of the left and right louvers 41 and the upper and lower louvers 43 are provided on the ventilation path forming section 30 which constitutes the outlet ventilation path 29 of the front panel 21, the lower surface of the conventional drain pan. Compared with the structure in which the wind direction adjusting plate is provided at the part, the assembling work becomes easier.

Moreover, when the front panel 21 is removed, the wind direction adjusting section 40 integrated with the front panel 21 is simultaneously removed. Of course, the heat exchanger 56 is exposed so that dust and the like adhering to the heat exchanger 56 can be removed. However, after the front panel 21 is removed, the front drain pan 57 of the rear plate 22 and the air outlet 30 are provided. Since there are no obstacles in the opening A, maintenance work for the blower fan 53 can be easily performed from here.

The opening area of the opening A must be small enough to be inserted by the operator's hand in order to easily perform maintenance work on the fan 53. Although it is not made larger than necessary, it is desirable to set the cross-flow fan 53 within the range in which the cross-flow fan can be taken out so that the cross-flow fan 53 can be taken out from the opening A and the operator can work.

In the above embodiment, the airflow direction adjusting portion 40 consisting of the left and right louvers 41 and the support plate 44 is provided directly on the ventilation passage forming portion 30, and the support plate 44 is provided with the upper and lower louvers 4.
3 is supported, but the present invention is not limited to this.

For example, as shown in FIG.
The lever 47 of 3A may be pivotally supported on the front panel 21A, and the left and right louvers 41A may be pivotally supported on one side surface of the upper and lower louvers. Also in this case, the wind direction adjusting plate 40A is removed together with the removal of the front panel 21A, and the opening of the rear plate is exposed as it is.

[0061]

As described above, according to the present invention, in claim 1, the front panel is provided with the ventilation passage forming portion which forms the blower outlet ventilation passage together with the rear plate, and the piping accommodation is provided in this ventilation passage forming portion. Since the covers are integrally provided, the pipe connection work at the time of installing the unit body is facilitated, and the installation workability can be improved even if the unit body is taken out to the left.

In the second aspect, even if the size of the rear plate opening after division from the front panel is small, it can be inserted by the operator's hand, and if it is large, the blower fan can be taken out. This has the effect of improving the maintenance workability of the blower fan that easily adheres and is prone to mold.

According to the third aspect of the present invention, since the pipe accommodating cover of the front panel is provided with the claw portion for attaching and fixing the unit main body to the wall surface of the air-conditioned room, the case where the rear plate and the front panel are not assembled properly is described. Also, the unit main body can be more firmly attached and fixed by the engagement of the claw portions of the front panel, and the rigidity can be increased.

According to the fourth aspect of the present invention, since the wind direction adjusting plate for adjusting the wind direction of the blown air is provided in the ventilation path forming portion of the front panel, the assembling workability of the wind direction adjusting plate located at the blowout port is improved and This has the effect of facilitating maintenance work using the mouth.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of an indoor unit showing an embodiment of the present invention.

FIG. 2 is an exploded vertical sectional view of the indoor unit of the embodiment.

FIG. 3 is an exploded perspective view of the indoor unit of the embodiment.

FIG. 4A is a perspective view of the embodiment, in which a part of the wind direction adjusting plate is omitted. FIG. 3B is a side view in which a part of the wind direction adjusting plate is omitted.

FIG. 5 is a mounting configuration diagram of the upper and lower louvers of the same embodiment.

FIG. 6 is a perspective view of another embodiment in which a part of the wind direction adjusting plate is omitted.

FIG. 7 is a vertical cross-sectional view of an indoor unit of a conventional example.

[Explanation of symbols]

21 ... Front panel, 22 ... Rear plate, 20 ... Unit body,
56 ... Heat exchanger, 50 ... Blower, 30 ... Ventilation path component,
31 ... Piping storage cover, 32 ... Auxiliary piping, 34 ... Claw part,
35 ... Installation plate, 40 ... Wind direction adjustment part, 44 ... Vertical direction air direction adjustment plate (upper and lower louvers), 41 ... Left and right direction air direction adjustment plate (left and right louvers).

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tomoyoshi Takeuchi 336 Tatehara, Fuji City, Shizuoka Prefecture Toshiba Corporation Fuji Factory

Claims (6)

[Claims] 1. An indoor unit of an air conditioner in which a heat exchanger and a blower are housed and arranged in a unit body including an assembly of a front panel and a rear plate, wherein the front panel has An air passage component forming an outlet air passage is provided together with the rear plate, and a pipe storage cover for shielding the pipe connected to the heat exchanger is further integrally provided in the air passage component. The indoor unit of the characteristic air conditioner. 2. The size of the ventilation passage opening of the rear plate after the front panel is removed from the rear plate,
The indoor unit of an air conditioner according to claim 1, wherein the operator's hand can be inserted even if it is small, and the blower fan can be taken out if it is large. 3. The interior of the air conditioner according to claim 1, wherein the pipe storage cover of the front panel is integrally provided with a claw portion for attaching and fixing the unit body to the wall surface of the air-conditioned room. unit. 4. The indoor unit for an air conditioner according to claim 1, wherein an airflow direction adjusting plate for adjusting the airflow direction of the blown air is provided in the ventilation path forming portion of the front panel. 5. The wind direction adjusting plate comprises an up-down direction air direction adjusting plate directly provided in the ventilation passage forming section, and a left-right direction air direction adjusting plate provided on the up-down direction air direction adjusting plate. The indoor unit of the air conditioner according to claim 4. 6. The airflow direction adjusting plate comprises a horizontal airflow direction adjusting plate directly provided in the ventilation passage forming portion, and an up-down airflow direction adjusting plate provided in the horizontal airflow direction adjusting plate. The indoor unit of the air conditioner according to claim 4.