JPH0960918A - Air-conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the width of an electric parts box as small as possible and facilitate the handling of a control base board and electric control parts and improve the workability, by fitting the control base board to the side face of the parts box body and forming the opposite face as an opening to be freely opened or closed by the side face cover bodies. SOLUTION: A connector receive Kb1 like a room temperature sensor or a heat exchanger sensor arranged to make a line at the side of a control base board P is positioned to face the opening 18 provided at the front face 13b of a parts box body 13. The opening 18 is positioned to face the opening 45 provided at the base 40, in the state a front face plate 15 is fixed to the front face 13b of parts box body. After all, the connector receive Kb1 like the room temperature sensor or heat exchanger sensor is exposed to the front face side, in the state the front face plate is removed from the electric parts box. Hence, electric connecting works can be facilitated. A fan motor 91 is arranged close to the electric parts box 10 and there is no useless space. In this way, the unit body containing the electric parts box or a fan can be miniaturized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner, and more particularly, to an improvement in the structure of an electric parts box arranged in an indoor unit.

[0002]

2. Description of the Related Art A commonly used air conditioner is composed of an indoor unit installed in an air-conditioned room and an outdoor unit installed outdoors in a building. The units are connected to each other via a refrigerant pipe or electric wiring. It becomes.

In the indoor unit, the air to be conditioned in the room is sucked into the main body of the unit through a suction port provided in the front panel, passes through a heat exchanger arranged inside the unit, and exchanges heat, and is installed in the lower front portion. The air is blown again to the air-conditioned room from the blowout port.

A remote control panel (called a remote control) is attached to the indoor unit, and the refrigeration cycle components such as the blower, the compressor, etc., are set under the air conditioning conditions set by receiving an instruction signal from the remote control panel. To be electrically controlled.

Further, the unit body is provided with electric control parts for performing the above-mentioned electric control, and these are all mounted on a control board (PC board) at once. And the control board
It is housed in an electrical parts box.

When the front panel constituting the unit main body is removed, the front surface of the electric component box is exposed. Conventionally, this electric component box can be opened and closed on the front side, which is a facing surface of an operator, so that necessary work such as replacement can be performed when an electric control component fails. That is, the front side of the electric component box is an opening, and the lid is openably and closably attached to the opening.

[0007]

By the way, when designing an indoor unit, in order to increase the size of the unit body, especially to suppress the width dimension, the space for arranging the electric parts box is located at a side part of the heat exchanger. Only a space with a small width is secured. Therefore, the electric component box arranged here is formed in a thin box shape having a small width dimension and a height dimension.

On the other hand, all the electric control parts are mounted on a control board (PC board), and the area of the control board must be large to some extent for that reason. The control board area is considerably larger than the front opening area of the electric parts box, and the control board cannot be attached to the back surface of the electric parts box. Therefore, the control board is attached to the side surface of the electric component box.

However, since the front opening of the electric component box and the front lid that closes the front opening have a narrow width,
Even if the front cover is removed and the opening is opened at the time of replacement or maintenance work of the electric control parts, it is extremely troublesome to insert the hand from here and perform the necessary work.

The present invention has been made in view of the above circumstances, and an object of the present invention is to suppress a width dimension of an electric component box as much as possible and to mount a control board housed inside the control board. The present invention aims to provide an air conditioner equipped with an electric parts box that facilitates handling of the electric control parts that are used and improves workability.

[0011]

The air conditioner of the first invention for satisfying the above object contains a heat exchanger and a blower arranged to face the heat exchanger. In the air conditioner including a unit main body to be installed, and an electric parts box arranged in a side part of the heat exchanger and the blower in the unit main body, the electric parts box is provided in the heat exchanger and the blower side. A component box main body having a side surface opening, a control board mounted on the side surface portion of the component box main body facing the side surface opening portion, and a control component mounted on the side surface opening of the component box main body. It is characterized by comprising a side cover that is closed.

According to a second aspect of the present invention, the component box body and the side surface lid body according to the first aspect are formed by sheet metal working, and the control board is attached to the component box body through a board retainer made of an insulating material. It is characterized by being worn.

According to a third aspect of the present invention, the board retainer is made of a resin mold material, and an engaging claw for detachably engaging the control board is provided at an edge portion of the resin retainer.
According to a fourth aspect of the present invention, in the control board according to the first aspect, the height limit of the electric control component mounted therein is set so that one area corresponding to almost half of the control board is larger than the other area. In one area, tall electric control components are concentrated and mounted, and in the other area, short electrical components are concentrated and mounted. And the blower is arranged so as to face the concave portion of the side cover.

A fifth aspect of the present invention is characterized in that the component box main body according to the first aspect is formed by sheet metal working and is provided with a ground terminal. As claim 6, claim 1
The component box body and the side surface lid body described are formed by sheet metal working, the front surface portion of the component box body, a front plate body made of a resin mold material is attached, to the front plate body,
It is characterized in that a connector supporting portion for supporting the wiring connector is provided.

According to a seventh aspect of the present invention, the connector supporting portion according to the sixth aspect is characterized in that one side thereof is rotatably supported by the front plate body. An eighth aspect of the present invention is characterized in that a temperature fuse mounting portion is provided at a front plate portion where the connector supporting portion according to the seventh aspect overlaps.

As a ninth aspect, the component box body according to the first aspect is provided with an opening, and a part of a side of the control board is opposed to the opening, and the control board facing the opening is provided. It is characterized in that connector receiving portions such as a room temperature sensor and a heat exchanger sensor are arranged in a line on the side portion.

According to a tenth aspect of the present invention, in the component box body according to the sixth aspect, a protruding piece portion is provided on a front surface thereof, and in the board retainer, a mating portion of the protruding piece portions is located outside the protruding piece portion. It is characterized in that a guard piece portion for preventing a danger of protruding inward is integrally formed.

According to an eleventh aspect, the front plate body according to the sixth aspect is attached and fixed by a fixing tool from the back side of the front part of the component box body, and the fixing tool includes a cord fixing member for fixing the power cord. It is characterized in that it is attached and fixed at the same time on the front side and the back side of the main body.

By providing the means for solving the above problems, in the invention of claim 1, the area of the control board is sufficiently secured and no trouble occurs in the mounting of the electric control parts. Since maintenance work can be performed through a large opening area on the side surface of the component box body, the work is easy.

According to the second aspect of the present invention, since the electric component box and the side cover are processed by sheet metal processing, the manufacturing is facilitated and the control board is attached via the board retainer made of an insulating material. Sex is secured.

According to the third aspect of the present invention, since the locking claw is provided on the board pressing member made of the resin molding material so that the control board is detachably locked, the control board can be easily attached and detached, and the serviceability is good. .

According to the fourth aspect of the present invention, the electric control parts mounted on the control board are mounted in a uniform height, and the side cover is made uneven so that the blower is arranged facing the recess. Limit the width of the unit body as much as possible to avoid an increase in size.

According to the invention of claim 5, the range of attachment of the ground terminal is expanded, and the ground wire can be easily attached and detached during maintenance work. According to the sixth aspect of the present invention, since the connector supporting portion for supporting the wiring connector is attached to the front plate of the component box body, the work for the connector can be performed from the front side of the unit body, which is excellent in workability.

According to the invention of claim 7, the connector supporting portion is rotatably supported, so that the connector can be easily seen in the condition that the unit main body is arranged at a high place in the air-conditioned room, and the workability is good.

According to the present invention, the thermal fuse is mounted by effectively utilizing the space of the front plate body where the connector supporting portions overlap. According to the invention of claim 9, electrical connection can easily be made to the connector receiving portions such as the room temperature sensor and the heat exchanger sensor.

According to the tenth aspect of the invention, since the guard piece portion of the board retainer is made to project from the projecting piece portion of the component box main body, it is not necessary to directly hit the cut portion of the sheet metal of the electric wiring, and the insulating coating of the electric wiring can be formed. It does not break and secures the safety of the component box body by sheet metal processing.

According to the invention of claim 11, since the front plate is attached and fixed to the component box main body by the fixture and the cord fixing member for fixing the power cord is also fixed, the number of components can be reduced and the mounting work can be simplified. obtain.

[0028]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an indoor unit that constitutes an air conditioner. The unit body 1 has a front panel 2
And a rear plate 3 into which this front panel is fitted.

The front panel 2 is provided with a grill 2a having a front suction port and a grill 2b having an upper suction port. Further, an outlet 4 is provided on the lower surface, and a receiver for receiving a setting signal transmitted from a remote control panel (not shown) and a display for displaying the operating state are collectively provided on one side of the outlet. A display unit 5 is provided.

FIG. 2 shows a state in which the front panel 2 is removed. The heat exchanger 6 is arranged on the rear plate 3 described above. This heat exchanger 6 is of a so-called finned tube type, and is formed into a reverse V shape by bending a predetermined position of the fin after the heat exchange pipe is fixed to the fin by penetrating in the molding. Part suction grill 2a
And a heat exchange surface facing the upper suction grill 2b.

Between the inverted V-shaped heat exchangers 6 as described above,
Here, a blower (not shown) is arranged. This blower is composed of a brushless DC drive motor and a cross-flow fan that is fitted to the rotary shaft of the drive motor and extends in the axial direction along the width direction of the heat exchanger.

A front drain pan 7 is arranged at the lower end portion of the heat exchanger 6, and a wind direction guide plate 8 is provided at a lower portion of the heat exchanger 6 which faces the outlet 4. The wind direction guide plate 8 is shown here as a vertical louver for guiding the vertical wind direction, and the left and right louvers for guiding the horizontal wind direction are omitted.

An electric parts box 10 to be described later is arranged at a side portion of the heat exchanger 7 and the blower. Next, the configuration of the electric component box 10 will be described. As shown in the figure, a front plate 11 is attached to the front surface of the electric component box 10, and a state in which a mounting screw 12 of the front plate 11 is removed is shown in FIGS. 3 and 4.

The electric parts box 10 includes a parts box body 13 and a side cover 14 which are formed by sheet metal working.
A front plate 15 made of a resin molding material is attached to the front side of the component box body 13.

First, the component box main body 13 will be described. On the basis of the side plate portion 13a whose front upper portion is inclined, the front surface portion 13b as shown in FIG. An upper surface portion 13c that is bent and formed into
The upper surface portion 13c is integrally bent, and the end edge of the upper surface portion 13c is inclined along the inclined side of the side surface portion 13a.
7a and 10b, which is bent and formed on the back surface side of a, and the lower surface portion 1, which is bent and formed on the lower surface side.
3f.

As shown in FIGS. 3 and 4, a small rectangular locking hole 16 is provided in the upper portion of the side surface portion 13a near the bent side of the front surface portion 13b. FIG.
As shown only in FIG. 3, the front surface portion 13b has a cutout hole 17a.
Is connected to the locking hole 16. Further, a claw portion 17b is integrally bent at the side edge of the cutout hole 17a.

As shown in FIGS. 4, 6 and 7, an elongated rectangular opening 18 is provided in the lower portion of the cutout hole 17a up to the vicinity of the lower end edge. This opening 18
The side surface portion 13a is also cut across.

A notch 19 whose end is formed in a semicircular shape is provided at the upper side of the side of the front surface 13b opposite to the side where the side 13a is bent, and the lower part of this notch is provided. The side edge is a bent claw 20 that projects laterally.

At a substantially middle portion in the vertical direction of the opening 18,
A round through hole 21 is provided adjacent to this side portion, and an L-shaped auxiliary locking hole 22 is provided at the side portion of this round hole.
The upper end portion of the auxiliary locking hole 22 has a rectangular key shape, and the bent lower end tip portion has a circular key shape.

A projecting portion formed by burring is provided below the through hole 21 and on a side portion of the auxiliary locking hole 22, and a screw hole portion 23 having a screw hole is formed on the inner peripheral surface thereof. .

Further, a semicircular mounting portion 24a is projectingly provided on a part of the lowermost edge of the front surface portion 13b, and a screw hole portion 24b is also provided at the center position thereof. Such a front surface portion 13b
Is a portion extending from the lower portion of the bent claw 20 to the side portion of the opening 18 as an upper edge, and a portion extending diagonally downward from the side edge of the front surface portion 13b and extending to the upper end of the auxiliary locking hole 22 and the auxiliary locking hole 22. A recessed portion 25 having a lower end edge that extends from the side of the hole 22 to the side of the opening 18 is provided.

Therefore, a part of the side edge of the opening 18 and a part of the auxiliary locking hole 22 are formed in a stepped shape so as to extend over the recess 25, and the through hole 21 is completely located in the recess 25. It will be.

As shown in FIGS. 6, 7 and 10,
An end edge of the auxiliary locking hole 22 located on the projecting side of the recessed portion 25 is bent and formed on the rear surface side, and the positioning piece 2
5a.

The upper surface portion 13c of the component box main body 13 has a width dimension approximately the same as the width dimension of the inclined portion 13d, while the inclined portion 13d has the same width dimension as the front surface portion 13b. There is nothing. The rear side edge of the upper surface portion 13c is the rear surface portion 1.
3e is omitted so that there is a predetermined interval.

The upper surface portion 13c has a rectangular locking hole 26 at a position near the inclined portion 13d, and an L-shaped locking hole 27 at a position near the back surface portion 13e. A locking claw 28 is cut and formed on the side near the locking hole 27.

As shown in FIGS. 7 and 10, the back portion 1
3e is cut off so that the upper edge thereof has a predetermined distance from the edge of the upper surface portion 13c. About the bending width, the upper half is substantially the same as the upper surface portion 13c, and the remaining lower half is formed with a width narrower than this.

On the side edges of the upper half and the lower half,
The locking claws 29 and 30 are integrally cut and raised. The bending width of the lower surface portion 13f is substantially the same as the upper half of the upper surface portion 13c and the upper half of the rear surface portion 13e. As shown only in FIG. 7, rectangular locking holes 31, 31 are provided at predetermined intervals along the bent edge of the lower surface portion 13f.

As shown in FIGS. 7 and 10, the lower surface portion 1
At the 3f end, there is a predetermined interval, one of which is rectangular,
The other bulged portions 32a and 32b having a circular shape are formed so as to project downward. The front surface side edge of the lower surface portion 13f is spaced apart from the front surface portion 13b by a predetermined distance, and the edge portion is provided with a protruding piece portion 33 bent downward.

8 and 9, the protruding piece portion 33 has a small protruding dimension on the side adjacent to the side surface portion 13a, a large protruding dimension on the tip side, and a tip end. Is formed in a semicircular shape. A mounting hole 34 is provided in the center.

As shown in FIG. 7, the leading edges of the upper surface portion 13c, the rear surface portion 13e, and the lower surface portion 13f have locking pawls 2
8, 29, 30 and the bulging portions 32a, 32b except for the portion provided, folded back as possible (rounded back,
It is also said, and it is not in the state of being cut off. That is, these edges are not sharp and protect from danger.

However, since the edge of the protruding piece 33 provided at the tip of the lower surface 13f has a small protruding width, it cannot be folded back and is left in a cut state. Next, based on FIG. 4, FIG. 6, FIG. 10 and FIG.
The side cover 14 will be described.

The side surface lid 14 does not have a so-called front surface portion. A side surface portion 14a formed in a concavo-convex shape, an inclined portion 14b integrally formed with the side surface portion, an upper surface portion 14c,
It is composed of a back surface portion 14d and a lower surface portion 14e.

The side surface portion 14a corresponds to the component box body 13
It has an area substantially the same as that of the side surface portion 13a constituting the. Inclined portion 14b formed on the upper front surface of side surface portion 14a
Has a gentler inclination angle than the component box body inclined portion 13d, and in particular, as shown in FIG. 6, when the side cover 14 is incorporated in the component box body 13, the component box body inclined portion 13d
It is formed so that there is a certain amount of clearance with the side edges.

Then, as shown in the above figures, the side surface portion 1
4a is a cutout 3 extending from this lower edge to the lower surface 14e.
5 are provided. The side surface portion 14a has a cutout portion 35 having a left-right width.
The lower step portion 36a having the lowest protrusion amount extends from the rear surface portion 14d to the rear surface portion 14d and the vertical width extends from the substantially middle portion in the vertical direction to the lower surface portion 14e.

On the other hand, the lateral width extends from the upper portion of the front edge of the side surface portion 14a to the middle portion in the front-rear direction through the inclined portion 14b, and the vertical width extends from the upper surface portion 14c to the inclined portion 14.
A high bulge portion 36b having the largest protrusion amount is formed through b through a predetermined dimension.

As shown in FIGS. 4 and 10, the lower end of the high bulge 36b is connected to the intermediate bulge 36d via the inclined bulge 36c. This intermediate bulge 3
The front edge of 6d is parallel to the front edge of the high bulge portion 36b,
And the depth dimension is very small.

The inclined bulging portion 36c is a high bulging portion 36b.
And the low step portion 36a, the intermediate bulge portion 36d and the low step portion 36
It is provided integrally with a and between the high bulge portion 36b and the back surface portion 14d. Therefore, the inclination angle of the inclined step portion 36c is different in that portion and is not uniform.

The upper surface portion 14c has its front end edge continuous with the inclined edge portion 14b, and therefore, the side surface portion 14a.
It is located at the part that recedes from the front edge. And the side surface portion 14a
In accordance with the shape of the high bulge portion 36b, the width dimension of the front half portion is large, and the width dimension is gradually reduced from here to the rear surface portion 14d.

The rear surface portion 14d has the largest width dimension at the upper portion and the smallest width dimension at the lower portion in accordance with the inclined bulging portion 36c and the low step portion 36a. Is formed.

As shown only in FIG. 4, the lower surface portion 14e is
It is bent to a width dimension slightly larger than the width dimension of the lower portion of the back surface portion 14d. Then, rectangular-shaped and round-hole-shaped locking holes 37a and 37b are provided at a predetermined interval.

The upper surface portion 1 of the side cover 14 as described above.
4c, the rear surface portion 14d, and the lower surface portion 14e are respectively formed with bent portions 14f that are folded back outward to ensure safety.

FIGS. 6 and 11 show a state in which the side cover 14 is incorporated in the component box body 13 and the side surface opening of the component box body is closed. That is, the upper surface portion 14c, the rear surface portion 14d, and the lower surface portion 1 of the side surface lid 14 shown in FIGS.
4e are surface portions 13 of the component box body 13 that face each other.
The outer surfaces of c, 13e, and 13f are overlapped and fitted.

Then, the locking claws 28 and 2 formed by cutting and raising the upper surface portion 13c and the rear surface portion 13e of the component box body 13.
Reference numerals 9 and 30 denote the upper surface portion 14c and the rear surface portion 1 of the side cover 14.
The side cover 14 is held by the bent portions 14f of the 4d, and the claw tips and the bent portions 14f hold the side surface lid body 14 therebetween.

Further, in the locking holes 37a and 37b provided in the side surface lid lower surface portion 14e, the component box body lower surface portion 13f is formed.
The bulging portions 32a, 32b formed to project at are engaged.
The locking claw 20 provided on the side edge of the component box body front surface portion 13b is locked to the outer surface side at a part of the front end edge of the side surface lid side surface portion 14a.

In the side surface side portion 14a of the side cover, the front end edge of the inclined swelled portion 36c extends from the side edge of the recess 25 formed in the front surface portion 13b of the component box body to the auxiliary locking hole 22. Hang on to.

The front end edge of the intermediate bulging portion 36d on the lower side from the inclined bulging portion 36c is engaged along one side edge of the auxiliary locking hole 22 of the front surface portion 13b. Furthermore, the front end edge of the intermediate bulging portion 36d crosses the bent opening formed on the lower side of the auxiliary locking hole 22, and the lower end edge thereof is the front surface portion 13.
b It almost coincides with the lower edge.

Thus, the side surface lid body 14 closes the opening formed on the side surface of the component box body 10, and the side surface lid body 1
It has a box shape that is deformed as a whole depending on the shape of the four sides. Due to the difference in inclination angle between the component box body inclined portion 13d and the side surface lid inclined portion 14b and the dimension setting of the front end edge of the side surface lid upper surface portion 14c, a certain amount of gap is formed between them.

The gap between the lower edge of the front surface portion 13b of the component box body and the protruding piece portion 33 of the lower surface portion is not closed even when the side cover 14 is incorporated. Not only that, the side lid 14
A larger gap is formed by the notches 35 formed at the lower end of the side surface portion 14a and the front end edge of the lower surface portion 14e facing each other at the same position.

Next, the front plate 15 will be described with reference to FIGS. The front plate 15 includes a base part 40 attached to the front part 13b of the component box body,
The sensor support arm 41 and the base portion 40 that are integrally provided on the upper end portion of the base portion 40 and project to the side of the base portion.
And a connector support portion 42 whose upper side is rotatably supported on the front surface of the connector.

The base portion 40 has a locking claw 43 projecting from the upper portion of one side edge on the back surface side, and a locking piece 44 projecting along the side edge is integrally provided at the lower portion thereof. A rectangular opening 45 is provided along the locking piece 44. On the back surface side of the opening 45 along the side opposite to the locking piece 44, a locking projection 46 is provided in a protruding manner.

The base end portion of the sensor support arm 41, which is the left end portion of the upper end of the base portion 40, has an inclined piece portion 47 protruding obliquely upward.
On the lower side, a cord guide portion 48, which is integrally provided with the inclined piece portion 47 and has a lower end opened to the connector support portion 42, is provided.

The upper end of the connector support portion 42 is provided so as to face the lower end opening of the cord guide portion 48, and a pair of left and right bearing portions 49 that pivotally support the connector support portion 42 are provided on both sides of the upper end portion. It is projected.

On the lower side of the opening 45, a locking claw 50 for locking the lower end of the connector support 42 is provided. A threaded hole portion 51 shown only in FIG. 4 is provided on a side portion of the locking claw 50, and a through hole portion 52 having a semicircular upper end is provided on the side portion.

On the lower side of these, a tube portion 53 for guiding a cord, which protrudes to the front and rear surfaces of the base portion 40 and whose end surface is open, and a tubular portion 54 for inserting a screw are provided on the left and right sides.

As shown in FIG. 5, the temperature rise of the SL connector 66 is sensed at the portion of the base portion 40 that is exposed only when the connector supporting portion 42 is rotated, that is, the portion overlapping the connector supporting portion 42. The temperature fuse mounting portion 85 for detachably mounting the temperature fuse H and the boss portion 55 projecting to the front side are provided at positions adjacent to each other.

Although the thermal fuse H is provided on the base member 20 in this embodiment, it may be attached to the back surface of the connector supporting portion 42. In such a configuration, after the connector supporting portion 42 is rotated. The temperature fuse H and the SL connector 66 will not be displaced when they are returned to the original state.

The thermal fuse mounting portion 85 has a space space in which the thermal fuse H, which is a small cylindrical body, can be inserted and removed along the axial direction thereof, and the thermal fuse H is elastically pressed onto the space space. The holding claw portion 85a for fixing is provided.

A left side portion of the base portion 40 on which the sensor support arm 41 is provided is provided with a piece portion 56 projecting to the front side. The protruding piece portion 56 corresponds to the connector support portion 42.
By engaging with the side edges of the connector support portion 42, the lateral displacement of the connector support portion 42 is regulated.

In addition, although only a part of which is shown in FIG. 4, the base portion 40 is provided with a protruding portion 57a which protrudes toward the back surface by the thickness of the base portion 40. On the back surface side, as shown only in FIG. 7, a pair of parallel protruding pieces 57b that are long in the vertical direction, a protruding piece 57c that is long in the horizontal direction, and a protruding piece 57d that is parallel to the inside of one bearing portion 49, etc. Is provided.

The sensor support arm 41 has a small width in the vertical direction, and the extension length from the side edge of the base portion 40 is large. A tip portion thereof is a mounting portion 58 to which a temperature sensor (not shown) is attached, and is bent and formed along the longitudinal direction, and is bent and bent in a substantially semicircular shape toward the front side over the upper and lower end portions. A cover rod 59 is provided.

From the mounting portion 58 to the base portion 40 side,
A concave portion, a pressing claw, a pair of ribs parallel to each other along the longitudinal direction, a pair of pins spaced apart from each other in the horizontal direction and the vertical direction, and a pressing claw are sequentially provided.

On the both sides of the upper end portion of the connector support portion 42, a support shaft 60 pivotally supported by the bearing portion 49 is provided in a protruding manner. Both side portions project toward the front side and are formed in a U-shaped cross section.

A positioning piece 61 is provided so as to project in parallel with the right side portion of the connector supporting portion 42, and a locking claw 62 is provided at an intermediate portion thereof. Connector support part 4 facing this
A locking claw 63 is also provided on the left side portion of 2. The upper end of the left side piece and the upper end of the positioning piece 61 are projections 64 that project inward.

A screw hole portion 65 into which the mounting screw 12 of the front plate 11 shown in FIG. 2 is screwed is provided at the lower end portion of the connector support portion 42. The SL connector 66 is attached to the connector support portion 42. That is, the upper end of the SL connector 66 is engaged with the protrusion 64 that protrudes inward in the left and right, and both sides of the connector 66 are engaged with the locking claws 6.
2, 63 are engaged with each other, and even if the connector supporting portion 42 is rotated, the connector supporting portion 42 is securely attached without any positional deviation.

The lead wire (not shown) extending from the upper portion of the SL connector 66 is inserted into the cord guide portion 48 provided at the upper portion of the base portion 40, and further provided at the end portion on the side of the component box body front surface portion 13b. It is adapted to be extended into the component box body 13 through the cutout portion 19.

For example, when a wiring cord (not shown) is connected to the SL connector 66 as necessary, such as wiring work,
As shown in FIGS. 4 and 5, the connector support portion 42 is rotated to pull out the lower end portion to the front side.

The connection hole opened on the lower end surface of the SL connector 66 becomes easy to see, and the wiring cord is connected thereto. That is, it is not necessary to look into the connection hole, which facilitates the connection work.

To attach the thus constructed front plate 15 to the front part 13b of the component box body, the front plate 15 is attached.
Locking claw 43 and locking piece 4 projecting from the back surface of one side edge
4 is engaged with the locking hole 16 and the side edge of the opening 18 of the front part 13b of the component box body.

In this state, as shown in FIG.
As shown in FIG. 4), the protruding piece 57d projecting from the side edge back surface side of the front plate body 15 is locked to the front end edge of the side surface lid side surface portion 14a, and the lower back surface. Of a pair of protruding pieces 57b that are long in the up-down direction
Is inserted into the opening 18, and the inner protruding piece is locked to the front end edge of the side cover intermediate bulging portion 36d. Further, a horizontally long projecting piece 57c projectingly provided at the lower portion
Is locked to the lower edge of the front part 13b of the component box body and the edge of the side cover notch 35.

The cylindrical portion 5 provided at the lower end of the front plate 15
4 is in close contact with the protruding piece portion 33 of the lower surface portion 13f of the component box body, and the mounting holes thereof face each other. Also, in this state, a screw hole portion 51 (not shown) protrudingly provided on the rear surface side of the front plate body 15 is inserted into the circular keyhole portion at the lower end of the opening portion 18 provided in the front surface portion 13b of the component box body. .

Therefore, a rectangular piece-shaped cord fixing member 68 is opposed to a screw hole portion 51 (not shown here) protruding from the front surface portion 13b of the component box body to the rear surface side, and a fixing screw 69 as a fixing tool is inserted therethrough. , Is screwed into the screw hole portion 51.

At this time, a power cord 70 connected to a commercial (AC) power source is interposed between the cord fixing member 68 and the rear surface of the front part 13b of the component box body. After that, the fixing screw 69 is screwed, the power supply cord 70 is pressed and fixed by the cord fixing member 68, and the front plate 15 can be securely attached and fixed to the component box body 13.

Further, the connector supporting portion 42 is rotated to expose the surface of the base portion 40. As shown only in FIG. 4, a mounting screw c is attached to the ground terminal b connected to the ground wire a.
Are engaged and inserted into the boss portion 55 provided on the base portion 40.

The boss 55 is formed on the front surface 13 of the component box body.
The mounting screw c is screwed into the screw hole portion 23 provided in b. That is, the ground terminal b is connected to the component box body 13 to be sheet metal processed, and it is not necessary to particularly provide a metal fitting for connecting the ground terminal. As shown in FIG. 7, a board retainer 71, which is an insulating member, is detachably attached to the inner surface of the side surface portion 13a of the component box body 13.
A control board (PC board) P on which electrical control components described later are mounted is detachably attached to the board retainer 71.

The board retainer 71 is made of a resin molding material, like the front plate 15, while the component box body 13 and the side cover 14 are processed by sheet metal processing. Its area shape is the same as that of the side surface portion 13a of the component box body, and is bent along the peripheral edge portion except for a part.

On the upper surface 71a of the board retainer 71, there are provided a pair of outer locking claws 72 with the claws protruding outward at predetermined intervals. Inside the outer locking claws 72, An inner locking claw 73 whose claw portion protrudes inward is provided.

Triangular protrusions 74 are provided at the corners formed by the upper surface 71a and the rear surface 71b. Lower surface portion 71
On the outer surface side of c, as shown in FIGS. 8 and 9, a pair of projecting pieces 75 are projectingly provided at a predetermined interval.

As shown in FIG. 7, FIG. 8 and FIG. 9, the front edge of the board pressing lower surface portion 71c and the lower end portion of the front surface portion 71d are provided at a predetermined interval with the guard piece portion 7 extending vertically downward.
6 are formed. As will be described later, the guard piece portion 76 is set so that the area thereof is larger than the area of the protruding piece portion 33 vertically provided on the lower surface portion 13f of the component box body.

As shown only in FIG. 7, the front surface portion 71d is formed of a piece portion having a small bending width, and a rectangular cutout portion 77 extending to the side surface portion 71e is provided in the upper portion thereof. Then, only the upper portion of the cutout portion 77, the front portion 7
A positioning piece 78 having a large bending width is provided parallel to the front side of the piece forming 1d.

The bending width of the inclined portion 71f is the same as that of the front surface portion 71d. Then, the receiving portion 7 having the same bending width as those
9 is continuously provided along the inside of the side piece of the upper surface portion 71a and the rear surface portion 71b except between the inner and outer locking claws 72, 73 of the upper surface portion 71a.

The lower surface portion 71c is provided with a rectangular pressing piece portion 80 which projects inwardly in parallel with the side surface portion 71e with a predetermined gap therebetween. Is provided with a pair of protrusions 81. The pressing piece 80
Two sets of the protrusions 81 are provided on the lower surface portion 71c so as to be separated from each other.

Such a board retainer 71 is inserted into the side surface portion 13a of the component box body. That is, the outer locking claws 72 of the upper surface portion 71a are engaged with the rectangular and L-shaped locking holes 26 and 27 provided in the upper surface portion 13c of the component box body.

As shown in FIGS. 10 and 11, the triangular protrusions 74 provided at the corners of the upper surface portion 71a and the rear surface portion 71b are the upper surface portion 13c and the rear surface portion 13e of the component box body 13.
Engages with the notch formed by and projects from here.

As shown in FIGS. 8 and 9 again, the projecting piece 75 of the lower surface portion 71c engages with the locking hole 31 of the lower surface portion 13f of the component box body. Since all of them are detachably engaged, the board retainer 71 is provided on the side surface portion 13a of the component box body.
It will be detachably attached to.

In this state, the guard piece portion 76 provided on the board pressing lower surface portion 71c comes into close contact with the front surface side of the projecting piece portion 33 vertically provided on the component box body lower surface portion 13f. And
The area of the guard piece portion 76 is set to be larger than the area of the projecting piece portion 33, and the operator's finger directly projects from where the guard piece portion 76 is located on the front side of the projecting piece portion 33. There is no contact with the piece 33 and no contact with the power cord 70, and therefore safety is ensured.

A control board (PC board) P is attached to such a board retainer 71. That is, with the control board P tilted, the lower end portion of the control board P is attached to the board pressing lower surface portion 71c.
The lower end edge is placed on the ridge 81.

Then, the upper end portion of the control board P is rotated so as to be aligned with the board pressing side surface portion 71e. The upper edge of the control board P contacts the tip of the inner locking claw 73 to elastically deform it and get over it.

The peripheral edge of the control board P is placed on the receiving portion 79 and the front surface portion 71d. The left and right side surfaces are positioned by the positioning piece portions 76 of the side surface portion 71b and the front surface portion 71d, the inner locking claw 73 is locked at the upper end portion, and the pressing piece portion 80 is locked at the lower end portion.

From this, the control board P is the board holder 7
1 can be securely attached. Then, it can be easily detached from the board retainer 71 as required during maintenance.

As shown in FIG. 10, the control board P includes a number of tall electric control parts (power relays, electrolytic capacitors, switching transistors, line filters, etc., the total height dimension is 30 to 35 mm on average) Ka, and Low electrical components (microcomputers, capacitors, resistors, connectors, etc., average height of 15 mm) Kb are mounted.

That is, the control board P secures one area corresponding to almost half of the control board P to be larger than the other area.
The tall electric control components Ka are concentratedly mounted in one area, and the short electric components K are mounted in the other area.
b is intensively implemented.

Particularly, among the short electric parts Kb, the connector receiving portion Kb1 such as the room temperature sensor and the heat exchanger sensor is
The control boards P are arranged in a line on the side. In this way, the control board P in which the height of the electrical control components Ka and Kb to be mounted is limited is housed in the component box body side surface portion 13a via the board retainer 71, and the side surface opening portion is provided with the side surface lid body. 14
To close.

The side cover 14 is made up of the electric control component K described above.
It has a concavo-convex shape that matches the height of a and Kb. That is, the side cover 14 is configured such that the low step portion 36a having a small area faces the region where the short electrical control component Kb is mounted, and the tall electrical control component Ka is mounted in the region. High bulging portion 36b and inclined bulging portion 3 having a large area
6c are configured to face each other.

Therefore, there is only a small space between the side cover 14 and the heads of the electric control components Ka and Kb, so that there is no extra space inside the electric component box 10.

As shown in FIGS. 4 and 6, the control board P
The connector receiving portions Kb1 such as the room temperature sensor and the heat exchanger sensor, which are arranged in a line on the side portion of, face the opening 18 provided in the front surface portion 13b of the component box body 13.

The opening 18 faces the opening 45 provided in the base 40 in the state where the front plate 15 is attached to the front surface 13b of the component box body as shown in FIG. After all, as shown in the figure, with the front plate 11 removed from the electric component box 10, the connector receiving portion Kb1 of the room temperature sensor, the heat exchanger sensor, etc. is exposed on the front side, and the electrical connection work is performed. Can be done easily.

As shown in FIG. 11, the completely assembled electric component box 10 is arranged at a predetermined position in the unit body 1 at a side portion of the blower 90. In this state, the fan motor 91 constituting the blower 90 faces the low step portion 36a of the side cover 14 with a narrow gap s.

To explain further, a part of the fan motor 91 is, when viewed from the front, the inclined bulging portion 36c of the side cover 14.
It is also in a position where it overlaps with the back side of the front part 13b of the main body of the parts box. The fan motor 91 and the electric component box 10 are arranged close to each other, and there is no wasted space between them. From this, the width dimension of the unit main body 1 that houses the electric component box 10 and the blower 90 is suppressed to the utmost, and the miniaturization is obtained.

[0119]

As described above, according to the first aspect of the present invention, the control board is attached to the side surface of the component box main body, and the opposite surface is used as the opening so that the side cover can be opened and closed.
The area of the control board is sufficiently secured to prevent any trouble in mounting the electric control parts, and maintenance work can be performed through a large opening area on the side surface, so that workability can be improved. .

According to the second aspect of the present invention, the electric component box and the side cover are processed by sheet metal processing, which facilitates manufacturing. Then, since the control board is attached to the component box body via the insulating member, the insulating property with respect to the control board is ensured.

According to the third aspect of the present invention, the insulating member is formed of the resin molding material, and the locking claw is provided to lock the control board detachably. Therefore, the control board can be easily attached and detached. And serviceability is good.

According to the fourth aspect of the present invention, a region in which the height dimensions of the electric control parts are aligned is set on the control board, the side surface lid body is made to have an uneven shape in accordance with this, and the blower is opposed to this concave portion. Since it is arranged as described above, the size of the width of the unit main body can be suppressed as much as possible to avoid the increase in size.

According to the fifth aspect of the present invention, the component box main body is processed by sheet metal processing and is provided with the ground terminal. Therefore, the mounting range of the ground terminal is expanded, and the ground wire can be easily attached and detached during maintenance work.

According to the invention of claim 6, since the connector supporting portion for supporting the wiring connector is attached to the front plate of the component box body, the connector can be worked from the front side of the unit body. Good sex.

According to the invention of claim 7, since the connector supporting portion is rotatably rotatably supported, it is possible to make the connector easy to see when the unit main body is arranged at a high place in the air-conditioned room.
Good workability.

According to the eighth aspect of the present invention, since the temperature fuse is attached by utilizing the front plate portion where the connector supporting portions overlap, the space can be effectively used.

In the ninth aspect of the present invention, the connector receiving portions such as the room temperature sensor and the heat exchanger sensor are exposed on the surface of the electrical component box, so that electrical connection to them can be easily performed. In the invention of claim 10, since the guard piece portion of the board retainer is made to project from the projecting piece portion of the component box main body, it is possible to avoid directly hitting the cut portion of the sheet metal of the electric wiring and the insulating coating of the electric wiring may be broken. Instead, secure the safety of the component box body by sheet metal processing.

According to the eleventh aspect of the present invention, since the front plate is attached and fixed to the component box main body by the fixing tool and the cord fixing member for fixing the power cord is also fixed, the number of components can be reduced and the mounting work can be simplified. Get

[Brief description of drawings]

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

FIG. 2 is a perspective view showing the same embodiment with a front panel of the indoor unit removed.

FIG. 3 is a perspective view showing the same embodiment in which a front lid of the electric component box is removed.

FIG. 4 is an exploded perspective view showing a component box body, which constitutes an electric component box, a side cover and a front plate, showing the same embodiment.

FIG. 5 is a side view showing the same embodiment, with a part of a front plate body omitted.

FIG. 6 is a perspective view showing the same embodiment with a side cover attached to a component box body.

FIG. 7 is an exploded perspective view of the component box body and the board retainer showing the embodiment.

FIG. 8 is a perspective view showing a part of a state of being assembled as an electric component box from the back surface side, showing the same embodiment.

FIG. 9 is a partially exploded perspective view of the component box body and the board retainer showing the embodiment.

FIG. 10 is an exploded perspective view of a side cover body as an electric component box showing the embodiment.

FIG. 11 is a perspective view showing an arrangement relationship between an electric component box and a blower according to the embodiment.

[Explanation of symbols]

6 ... Heat exchanger, 90 ... Blower, 1 ... Unit body, 10
... Electric parts box, 13 ... Parts box body, 13a ... Side part, K
a, Kb ... Electrical control parts, P ... Control board, 14 ... Side cover, 71 ... Insulating member (board retainer), 73 ... Inner locking claw, b ... Ground terminal, 4 ... Front plate, 66 ... Wiring Connector (SL connector), 42 ... Connector supporting portion, H ... Thermal fuse, 85 ... Thermal fuse mounting portion, Kb1 ... Connector receiving portion, 33 ... Projecting piece portion, 76 ... Guard piece portion, 69
... Fixing tool (fixing screw), 70 ... Power cord, 68 ... Cord fixing member.

Claims (11)

[Claims] 1. A unit main body for accommodating a heat exchanger and a blower arranged to face the heat exchanger, and electric parts arranged at side portions of the heat exchanger and the blower in the unit main body. In the air conditioner including a box, the electric component box is attached to the heat exchanger and the side of the blower side of the component box main body, and the side surface of the component box main body facing the side opening. An air conditioner comprising: a control board on which electrical control components are mounted; and a side lid that opens and closes a side opening of the component box body. 2. The component box main body and the side surface lid are formed by sheet metal working, and the control board is attached to a side surface portion of the component box main body via a board retainer made of an insulating material. The air conditioner according to claim 1. 3. The air conditioner according to claim 2, wherein the board retainer is made of a resin mold material, and an engaging claw for detachably retaining the control board is provided at an end portion of the board retainer. . 4. The control board has a height limit of an electric control component mounted therein, wherein one area corresponding to almost half of the control board is made larger than the other area, and one area is provided in the one area. Tall electric control parts are mounted in a concentrated manner, and short electric parts are mounted in the other area in a concentrated manner. The side cover has an uneven shape matching the height of the electric control parts. The air conditioner according to claim 1, wherein the blower is arranged so as to face the concave portion of the side cover. 5. The air conditioner according to claim 1, wherein the component box body is formed by sheet metal working and is provided with a ground terminal. 6. The component box main body and the side surface lid are formed by sheet metal working, and a front plate made of a resin molding material is attached to the front surface of the component box main body. The air conditioner according to claim 1, further comprising a connector support portion that supports the wiring connector. 7. The air conditioner according to claim 6, wherein one side of the connector supporting portion is rotatably supported by the front plate and overlaps a part of the front plate. 8. The air conditioner according to claim 7, wherein a temperature fuse mounting portion is provided at a front plate portion where the connector supporting portion overlaps. 9. The component box body is provided with an opening, a part of a side of the control board faces the opening, and a room temperature sensor or a heat sensor is provided on a side of the control board facing the opening. The air conditioner according to claim 1, wherein the connector receiving portions such as the exchange sensor are arranged in a line. 10. The component box main body is provided with a protruding piece portion on the front surface thereof, and the board retainer is for preventing a risk that a mating portion of the protruding piece portions protrudes outward from the protruding piece portion. The air conditioner according to claim 6, further comprising a guard piece portion. 11. The front plate is attached and fixed from the back side of the front part of the component box body by a fixing tool, and the fixing tool has a cord fixing member for fixing a power cord on the back side of the front part of the component box body. The air conditioner according to claim 6, wherein the air conditioner is attached and fixed at the same time.