JP2014119179A - Indoor unit of air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an indoor unit of an air conditioner capable of properly keeping assemblability and maintainability without increasing a size of a housing even when a size of a control circuit board is increased.SOLUTION: An electrical part 4 of an indoor unit 100 of an air conditioner includes an electrical part fixing part 4a accommodating a power source circuit board 10, and an electrical part movable part 4b accommodating a control circuit board 40. The electrical part fixing part 4a is fixed to a base 1 between one end face of a heat exchanger 3 and one end face of a housing 7, and the electrical part movable part 4b is rotatably and separably mounted on a mounting portion front face 23c of the electrical part fixing part 4a, and intruded between one end face of a drain unit 5 and one end face of the housing 7 in a state that it cannot be separated from the mounting portion front face 23c when the electrical part movable part 4b is rotated toward the inner side of the housing 7, and can be separated from the mounting portion front face 23c when it is rotated toward the outer side of the housing 7.

Description

  The present invention relates to an air conditioner indoor unit, and more particularly to an air conditioner indoor unit having a unitized electrical component module.

The indoor unit of the air conditioner installed on the wall surface of the room includes a base fixed to the wall surface, a housing attached to the base and having a suction port for sucking indoor air and a blower outlet for blowing conditioned air. A blower fan that is installed in the base and forms an air passage from the suction port to the outlet, a heat exchanger that is disposed in the air passage and executes a part of the refrigeration cycle, and the blower fan, the refrigeration cycle, and heat And an electrical component for controlling the operation of the exchanger.
Then, in order to improve the assemblability and maintainability, the electrical component is made into a unitized electrical component module, and an electrical component part (constituted by an electrical component box and an electrical component lid) that houses the electrical component module is provided on one side of the casing. An air conditioner is disclosed that is disposed in a space near an end, that is, between one end surface of a heat exchanger and one end surface of a housing (see, for example, Patent Document 1).

JP 2007-127344 A (page 4-5, FIG. 2)

The air conditioner disclosed in Patent Document 1 includes a fan motor fixed to an electrical box, and an electrical board (including a control circuit for controlling each device) in the electrical box. "Corresponding to a circuit board" is detachably held, and further includes a terminal part (a power circuit for supplying power to the terminal and each device) on the outer surface of the electrical box. Is attached). For this reason, vibrations of the fan motor can be suppressed, and an effect can be obtained in which the electrical board is hardly affected by noise from the terminal portion.
However, since the electrical box holding the electrical board is covered with the electrical cover, it is necessary to open the electrical cover after removing the housing from the base when the electrical board is to be inspected or replaced. There was a problem of becoming.
Further, for example, when an attempt is made to mount a monitoring device for monitoring a room, a display device for making a control state known, etc., the electrical component becomes larger as the electrical board is enlarged. If it does so, there existed a problem that an electrical component part adjoined to the surrounding apparatus or interfered with the surrounding apparatus, and there existed a possibility that assembly property and maintainability might be inhibited.

  The present invention has been made to solve the above-described problems, and improves workability when checking or replacing an electrical board (control circuit board). An indoor unit of an air conditioner that can maintain good assembly and maintainability without increasing the size is obtained.

  An indoor unit of an air conditioner according to the present invention includes a base, a suction port that is attached to the base, and sucks room air and a blower outlet that blows conditioned air, and the wind from the suction port to the blower outlet A housing in which a passage is formed, a blower fan that is installed on the base and forms an air flow in the air passage, a heat exchanger that is disposed in the air passage and executes a part of the refrigeration cycle, A drain unit disposed below the heat exchanger; and an electrical component that controls operation of the blower fan and the refrigeration cycle, wherein the electrical component drives the blower fan and the refrigeration cycle. An electrical component fixing portion that houses a power circuit board that is a board on which a circuit for supplying power is mounted, and a control circuit board that is a board on which a circuit for controlling the blower fan and the refrigeration cycle is mounted An electrical component moving part to be housed, wherein the electrical component fixed portion is fixed to the base between one end surface of the heat exchanger and one end surface of the housing, and the electrical component The movable part is rotatably and detachably attached to the front surface of the electric part fixing part, and cannot be detached from the front surface of the electric part fixing part when the electric part moving part is rotated toward the inside of the housing. In this state, when it enters between one end surface of the drain unit and one end surface of the housing and is rotated toward the outside of the housing, it can be detached from the front surface of the electric component fixing portion. It is characterized by becoming.

  The indoor unit of the air conditioner according to the present invention separates the electrical component into an electrical component fixed part and an electrical component movable part, and installs the electrical component fixed part between the end face of the heat exchanger and the housing. Since the electric part moving part is attached to the front side of the electric part fixing part and can be arranged between the end of the drain unit and the case, the electric part moving part can be moved without enlarging the case. Can be increased. That is, even if the control function of the air conditioner is expanded and the control circuit board is expanded, the housing (indoor unit) can be suppressed to a small size. Further, since the electric part movable part is rotatable with respect to the electric part fixing part, the heat exchanger or the drain unit can be easily inspected only by rotating the electric part fixing part. Furthermore, since the electric part movable part is made detachable with respect to the electric part fixed part, the inspection and replacement of the control circuit board housed in the electric part movable part can be easily performed by simply removing the electric part movable part. It becomes possible to execute.

Sectional drawing of the side view explaining the indoor unit of the air conditioner which concerns on Embodiment 1 of this invention. The perspective view which isolate | separates and shows each member of the indoor unit shown in FIG. The front view which permeate | transmits and shows a part of indoor unit shown in FIG. The side view which permeate | transmits and shows a part of indoor unit shown in FIG. The perspective view which isolate | separates and shows each member of the electrical equipment part installed in the indoor unit shown in FIG. The perspective view which shows the electrical equipment part fixing | fixed part of the electrical equipment installed in the indoor unit shown in FIG. The perspective view which expands and shows a part (attachment shaft) of the electrical equipment part fixing | fixed part shown to FIG. 5a. The perspective view which shows the electrical equipment part movable part of the electrical equipment part installed in the indoor unit shown in FIG. The perspective view which expands and shows a part (bearing part) of the electrical equipment part movable part shown to FIG. 5a. The perspective view which expands and shows a part (bearing part) of the electrical equipment part movable part shown to FIG. 5a. The front view which shows typically the attachment state of the electrical equipment part movable part of the electrical equipment part installed in the indoor unit shown in FIG. The right view which shows typically the attachment state of the electrical equipment part movable part of the electrical equipment part installed in the indoor unit shown in FIG. The left view which expands a part and shows the attachment state of the electrical equipment movable part of the electrical equipment installed in the indoor unit shown in FIG. Sectional drawing which expands a part and shows the attachment state of the electrical equipment part movable part of the electrical equipment part installed in the indoor unit shown in FIG. The front view which shows typically the rotation state of the electrical equipment part movable part of the electrical equipment installed in the indoor unit shown in FIG. The right view which shows typically the rotation state of the electrical equipment part movable part of the electrical equipment installed in the indoor unit shown in FIG. The left view which expands a part and shows the rotation state of the electrical equipment movable part of the electrical equipment installed in the indoor unit shown in FIG. Sectional drawing which expands a part and shows the rotation state of the electrical equipment part movable part of the electrical equipment part installed in the indoor unit shown in FIG. The left view which expands and shows the initial state of the removal of the electrical equipment part movable part of the electrical equipment part installed in the indoor unit shown in FIG. The left view which expands and shows the completion | finish state of removal of the electrical equipment part movable part of the electrical equipment part installed in the indoor unit shown in FIG.

[Embodiment 1]
1 to 3b illustrate an indoor unit of an air conditioner according to Embodiment 1 of the present invention, in which FIG. 1 is a sectional view in side view, and FIG. 2 is a perspective view showing each member separately. Fig. 3a is a front view showing a part of it, and Fig. 3b is a side view showing a part of it. Each drawing is schematically drawn, and the present invention is not limited to the drawn form (the same applies to the drawings after FIG. 4).

(Indoor unit)
In FIG. 1 to FIG. 3B, an indoor unit (hereinafter referred to as “indoor unit”) 100 of an air conditioner is attached to a base 1 fixed to a wall surface (not shown) and the base 1 and sucks indoor air. A housing 7 in which an air inlet 7a and an air outlet 7b for blowing out conditioned air are formed; an air blowing fan 2 that is installed in the base 1 and forms an air flow in an air passage 8 extending from the air inlet 7a to the air outlet 7b; A heat exchanger 3 that is disposed in the air path 8 and executes a part of the refrigeration cycle, a drain unit 5 that is disposed below the heat exchanger 3 and receives drain water dripped from the heat exchanger 3, and a housing And a design panel 6 that opens and closes a front-side opening (not shown). The drain water received by the drain unit 5 flows through a drain hose (not shown) and is discharged outside the room.
Further, in the air passage 8, a left and right air direction plate 9a for adjusting the horizontal direction (left and right direction) of the conditioned air is installed on the lower surface of the drain unit 5, and the vertical direction of the conditioned air is provided at the outlet 7b. While adjusting the blowing direction of (up-down direction), the up-and-down wind direction board 9b which opens and closes a blower outlet is installed.

Furthermore, the electrical component 4 that controls the operation of the blower fan 2, the refrigeration cycle, the heat exchanger 3 and the like is closer to one end surface (right side in FIG. 3a) of the base 1, and one end portion of the heat exchanger 3 It is installed between one end surface of the housing 7 and between one end portion of the heat exchanger 3 and a part of the front surface of the drain unit 5.
Hereinafter, in the description of the electrical component 4, based on the state where the electrical component 4 is installed on the base 1, the base 1 side is the “rear side”, the design panel 6 side is the “front side”, and the suction port 7 a side. Is the “upper side”, the air outlet 7 b side is “lower side”, the heat exchanger 3 side is “inner side”, and the opposite side of the heat exchanger 3 (one end face side of the housing 7) is “outer side”.

(Electrical department)
FIG. 4 is a perspective view illustrating the electrical components installed in the indoor unit of the air conditioner shown in FIG. 1 and showing each member separately.
In FIG. 4, the electrical part 4 is formed by an electrical part fixed part 4 a having a power circuit board 10 and an electrical part movable part 4 b having a control circuit board 40, and the electrical part fixed part 4 a is a base 1. The electric part moving part 4b is rotatably and detachably installed on the electric part fixing part 4a.

(Electrical part fixing part)
The electrical component fixing portion 4 a includes a storage portion 21 that stores the power circuit board 10 and a power box cover 30 that covers an opening of the storage portion 21.
The storage unit 21 has a side wall surrounded by the storage unit upper surface 21b, the storage unit front surface 21c, the storage unit lower surface 21d, and the storage unit rear surface 21e (more precisely, a range close to the storage unit front surface 21c of the storage unit lower surface 21d is opened. And the storage portion inner surface 21a that closes one side (inner side) of the side wall, and the other side (outer side) of the side wall is open and connected to the storage portion 21, and is directed downward. And an attachment portion 23 that is connected to the intermediate portion 22 and protrudes obliquely backward and downward.

At this time, the rear surface 21 e of the storage unit is fixed to the base 1. Further, the storage portion front surface 21c and the intermediate portion front surface 22c of the intermediate portion 22 are continuous in a bent state (more precisely, there may be a slight step or a slight gap), and the intermediate portion front surface 22c and the attachment portion 23 are connected. It is continuous with the mounting portion front surface 23c in a bent state (exactly, there may be a slight step or a slight gap).
The attachment portion front surface 23c is provided with a fixed portion attachment means 70 for attaching the electric component movable portion 4b in a rotatable and detachable manner (this will be described in detail separately).

  The power supply box cover 30 has a cover surface 30a that covers the opening on the outside of the power supply box 20, and a cover upper surface 30b and a cover front surface 30c that come into contact with the storage unit upper surface 21b and the storage unit front surface 21c so as to cover them. ing.

  The power circuit board 10 is a board on which a circuit for supplying power for driving terminals, the blower fan 2 and the like is mounted, and the mounting surface 11 on which the terminals and circuits are formed is outside (cover surface 30a). ) And is housed in the power supply box 20, and the back surface 12 of the mounting surface faces or contacts the housing portion inner surface 21 a.

(Moving part of electrical parts)
The electric part movable part 4 b is attached to the movable part base 50, which is rotatable and detachably attached to the attachment part front surface 23 c, the control circuit board 40 detachably attached to the movable part base 50, and the movable part base 50. And a movable part cover 60 covering the control circuit board 40 in a held state.

The control circuit board 40 has a mounting surface 41 on which a microcomputer and a circuit for controlling the blower fan 2 and the like are mounted facing the movable part cover 60, and a circuit back surface 42 of the mounting surface 41 is the movable part base 50. It is in contact with the base surface 51 or opposed with a slight gap.
Further, on the base back surface 52 of the movable part base 50, a movable part attaching means 80 is provided for attaching to the electrical equipment fixing part 4a so as to be rotatable and detachable (this will be described in detail separately).

(Mounting means)
FIGS. 5a to 6c are diagrams for explaining an electrical component installed in the indoor unit of the air conditioner shown in FIG. 1, in which FIG. 5a is a perspective view showing an electrical component fixing part, and FIG. 5b is an electrical component fixing part. FIG. 6A is a perspective view showing a movable part of the electrical component, and FIGS. 6B and 6C are perspective views showing an enlarged part (bearing part) of the movable part of the electrical component. FIG.
The electric part movable part 4b is different from the electric part fixed part 4a in that the fixed part attaching means 70 provided on the attachment part front surface 23c of the attachment part 23 of the electric part fixed part 4a and the movable part base 50 of the electric part movable part 4b. It is arranged to be rotatable and detachable by a mechanism constituted by a movable part mounting means 80 provided on the base back surface 52 (this will be described in detail separately).

  5a and 5b, the fixing portion attaching means 70 provided in the electrical equipment fixing portion 4a is fixed to the mounting portion front surface 23c by a mounting shaft rib 71 fixed to the mounting portion front surface 23c and the mounting shaft rib 71. A mounting shaft 72 (the axis indicated by WW is referred to as “rotating shaft 4c”) supported in parallel to the mounting portion front surface 23c at a position separated by a distance, and the mounting portion front surface 23c. Close direction stoppers 73a and 73b having a front surface parallel to the attachment portion front surface 23c, an opening direction stopper 74 provided on the attachment portion front surface 23c and having a side surface perpendicular to the attachment portion front surface 23c, and perpendicular to the attachment portion front surface 23c. And a fixed part moving stopper 75 having various side surfaces.

The mounting shaft rib 71 includes a mounting shaft upper rib 71a and a mounting shaft lower rib 71b, and the upper surface of the mounting shaft upper rib 71a and the lower surface of the mounting shaft lower rib 71b are parallel to each other by a predetermined distance “C”. is seperated.
Further, the mounting shaft 72 is in a plane perpendicular to the longitudinal direction of the base 1 and is parallel to the mounting portion front surface 23c, and the mounting shaft upper end 72a of the mounting shaft 72 is a distance from the upper surface of the mounting shaft upper rib 71a. The attachment shaft lower end 72b of the attachment shaft 72 protrudes by a distance “B” with respect to the lower surface of the attachment shaft lower rib 71b.
Furthermore, the outer end surfaces of the attachment shaft upper rib 71a and the attachment shaft lower rib 71b are perpendicular to the attachment portion front surface 23c.

6a to 6c, the movable part attaching means 80 of the electric part movable part 4b is provided on the base back surface 52 of the movable part base 50, and a bearing member 81 that rotatably supports the attachment shaft 72 of the electric part fixed part 4a. And a movable part moving stopper 85 provided on the base back surface 52.
The bearing member 81 has a bearing upper member 81a that forms an on-axis penetration hole 82a into which the mounting shaft upper end 72a of the mounting shaft 72 enters, and a bearing that forms an under-axis penetration hole 82b into which the mounting shaft lower end 72b of the mounting shaft 72 enters. And a lower member 81b.
The bearing upper member 81a and the bearing lower member 81b are opposed to each other, and the opposed end surfaces are stepped, and have a narrow upper end surface 84a that occupies half of one base side edge 54 side of the movable part base 50 and a narrow A width lower end surface 84b, and a wide upper end surface 83a and a wide lower end surface 83b occupying a half on the other base side edge 53 side of the movable part base 50 are provided.

5b, 6b and 6c, the distance “D” between the narrow upper end surface 84a and the narrow lower end surface 84b is smaller than the distance “E” between the wide upper end surface 83a and the wide lower end surface 83b (D < E)
The on-axis intrusion hole 82a can penetrate the attachment shaft upper end 72a of the attachment shaft 72 so that it has a depth of a distance A or more from the wide upper end surface 83a. Since the lower end 72b can enter, it has a depth of a distance B or more from the wide lower end surface 83b.
The mounting shaft 72 is in a state where the mounting shaft rib 71 is positioned at the phase of the narrow upper end surface 84a and the narrow lower end surface 84b (the same as the state in which the mounting portion front surface 23c and the base rear surface 52 are parallel). The movable part mounting means 80 is held so as not to fall off. On the other hand, the movable part mounting means 80 can be detached in a state where it is positioned in the phase of the wide upper end face 83a and the wide lower end face 83b (same as the state where the base back surface 52 is perpendicular to the attachment front surface 23c). Therefore, there is a relationship of “D <(A + C) <E” and “D <(B + C) <E” between the distances D and E and the distances A, B and C.

(Operation status of moving parts of electrical parts)
FIGS. 7a to 8d illustrate the operating state of the electrical component installed in the indoor unit of the air conditioner shown in FIG. 1 (the operational status of the electrical component movable part). FIG. 7a illustrates the electrical component movable part. FIG. 7B is a right side view schematically showing the mounting state of the electric part moving part, and FIG. 7C is a left side view showing a part of the mounting state of the electric part moving part. FIG. 7d is a cross-sectional view showing a part of the mounting state of the movable part of the electrical component, FIG. 8a is a front view schematically showing the rotational state of the movable part of the electrical component, and FIG. FIG. 8 c is a left side view schematically showing a part of the rotating state of the electric part moving part, and FIG. 8 d is an enlarged part of the rotating state of the electric part moving part. It is sectional drawing.

(Mounting part of the electrical part moving part)
7a to 7c, since the fixed part mounting means 70 and the movable part mounting means 80 have the above-described configuration, the mounting shaft upper end 72a and the mounting shaft lower end 72b of the mounting shaft 72 are respectively inserted into the on-axis penetration hole 82a and the below-axis penetration. When the electric component movable portion 4b is rotated in a state where it has entered the hole 82b, the base back surface 52 eventually comes into contact with the front surfaces of the closing direction stoppers 73a and 73b, and the rotation is restricted. At this time, since the base back surface 52 of the movable part base 50 faces the mounting portion front surface 23c of the mounting portion 23 in parallel, the arc-shaped range of the narrow upper end surface 84a and the narrow lower end surface 84b is the mounting portion. The linear range of the narrow upper end surface 84a and the narrow lower end surface 84b faces the front surface 23c and faces inward (see FIG. 7c).

Then, since the mounting shaft 72 is constrained by the bearing member 81, the electric component movable portion 4b is directed in a direction perpendicular to the mounting portion front surface 23c (diagonally below) and substantially with respect to the mounting portion front surface 23c. It cannot be moved in the parallel direction (outside). Further, since the side surface of the movable part moving stopper 85 faces the side surface of the fixed part moving stopper 75, the electric part movable part 4b cannot move in a direction (inward) substantially parallel to the mounting part front surface 23c. It has become.
And since the electric part movable part 4b cannot be rotated in the opening direction by a rotation lock means (not shown), the electric part movable part 4b is not rotatable and parallel to the electric part fixed part 4a. .

(Rotating state of the moving part of the electrical part)
8a to 8c, when the rotation lock means (not shown) is opened, the electric part movable part 4b can be rotated with respect to the electric part fixing part 4a. At this time, since the mounting shaft 72 is constrained by the bearing member 81, the electric part movable portion 4b is moved in the vertical direction and outward substantially parallel to the mounting portion front surface 23c, or substantially perpendicularly to the mounting portion front surface 23c. It cannot be moved toward. That is, the electrical component movable portion 4b rotates about the rotation shaft 4c (indicated by WW) that is the axis of the attachment shaft 72 (to be precise, between the attachment shaft 72 and the shaft entry hole 82). Since there is a gap, the rotating shaft 4c slightly fluctuates within a predetermined range). Then, when the base back surface 52 rotates until it contacts the side surface of the opening direction stopper 74, the rotation is restricted.

(Removal state of moving parts of electrical parts)
9a and 9b illustrate the operating state of the electrical component installed in the indoor unit of the air conditioner shown in FIG. 1 (removal state of the electrical component movable part). FIG. 9a illustrates the electrical component movable part. FIG. 9B is an enlarged left side view showing an end state of removal of the electric part moving part.
9a and 9b, when the base back surface 52 of the movable part base 50 of the electric part moving part 4b abuts against the side surface of the opening direction stopper 74 of the electric part fixing part 4a, the base back surface 52 is attached to the mounting part front surface 23c. Become vertical. At this time, the linear range of the wide upper end surface 83a and the wide lower end surface 83b faces the mounting portion front surface 23c, and the arc-shaped range of the wide upper end surface 83a and the wide lower end surface 83b faces inward. That is, the linear range of the narrow upper end surface 84a and the narrow lower end surface 84b is located on the opposite side (obliquely lower side) of the attachment portion front surface 23c.

Since the electric part movable part 4b can be moved in the vertical direction substantially parallel to the attachment part front surface 23c, the wide lower end surface 83b of the electric part movable part 4b is the attachment shaft lower rib 71b of the electric part fixing part 4a. In the state of contact with the mounting part 72 (see FIG. 9a), the mounting shaft upper end 72a of the mounting shaft 72 comes out of the wide upper end surface 83a by moving the electric part movable part 4b away from the mounting part front surface 23c. (See FIG. 9b).
That is, the electric part movable part 4b can be detached from the electric part fixing part 4a by such an operation. The wide upper end surface 83a of the electric part movable part 4b is brought into contact with the mounting shaft upper rib 71a of the electric part fixing part 4a, so that the mounting shaft lower end 72b of the mounting shaft 72 is pulled out of the wide lower end surface 83b. The part movable part 4b may be removed from the electrical equipment fixed part 4a.
Furthermore, what is necessary is just to perform the process of advancing the said reverse, when attaching the electrical equipment movable part 4b to the electrical equipment fixed part 4a.

(effect)
As is clear from the above description, the present invention separates the electrical component 4 into the electrical component fixed part 4a and the electrical component movable part 4b, and the electrical component fixed part 4a is connected to the end face of the heat exchanger 3 and the housing 7. And the electric component movable portion 4b can be disposed between the end of the drain unit 5 and the casing 7 on the front side of the electric component fixing portion 4a. It is possible to enlarge the electric part movable portion 4b without increasing 7. That is, even if the control function of the air conditioner is expanded and the control circuit board 40 is expanded, the housing 7 (indoor unit 100) can be suppressed to a small size.
Further, since the electric part movable part 4b is rotatable with respect to the electric part fixing part 4a, the heat exchanger 3 or the drain unit 5 can be easily inspected only by rotating the electric part fixing part 4a. .
Furthermore, since the electric part movable part 4b is detachable from the electric part fixed part 4a, the control circuit board 40 accommodated in the electric part movable part 4b can be inspected by simply removing the electric part movable part 4b. And replacement can be performed easily.
Contrary to the above, the same effect can be obtained by providing the fixed part attaching means 70 on the electric part movable part 4b and the movable part attaching means 80 on the electric part fixed part 4a.

  1 base, 2 blower fan, 3 heat exchanger, 4 electrical component, 4a electrical component fixed part, 4b electrical component movable part, 4c rotating shaft, 5 drain unit, 6 design panel, 7 housing, 7a suction port, 7b Air outlet, 8 air passages, 9a left and right wind direction plate, 9b up and down air direction plate, 10 power circuit board, 11 mounting surface, 12 back surface, 20 power supply box, 21 storage unit, 21a storage unit inner surface, 21b storage unit top surface, 21c storage unit Front side, 21d Lower side of storage part, 21e Rear side of storage part, 22 Middle part, 22c Front side of intermediate part, 23 Mounting part, 23c Front part of mounting part, 30 Power supply box cover, 30a Cover surface, 30b Cover upper surface, 30c Cover front side, 40 Control circuit Board, 41 Mounting surface, 42 Circuit back surface, 50 Movable part base, 51 Base surface, 52 Base back surface, 53 Base side edge, 54 Base side edge, 60 movable part cover, 70 fixed part attaching means, 71 attaching shaft rib, 71a attaching shaft upper rib, 71b attaching shaft lower rib, 72 attaching shaft, 72a attaching shaft upper end, 72b attaching shaft lower end, 73a closing direction stopper, 73b closing direction Stopper, 74 Opening direction stopper, 75 Fixed part moving stopper, 80 Movable part mounting means, 81 Bearing member, 81a Bearing upper member, 81b Bearing lower member, 82 Shaft penetration hole, 82a Shaft upper penetration hole, 82b Shaft lower penetration hole, 83a Wide upper end surface, 83b Wide lower end surface, 84a Narrow upper end surface, 84b Narrow lower end surface, 85 Movable part moving stopper, 100 Indoor unit.

Claims (3)

A base, a suction port that is attached to the base, and sucks room air; and a blower that blows out conditioned air; and a housing in which an air passage extending from the suction port to the blower is formed, and the base A blower fan that forms an air flow in the air passage, a heat exchanger that is disposed in the air passage and executes a part of the refrigeration cycle, and a drain unit that is disposed below the heat exchanger And an electrical component that controls the operation of the blower fan and the refrigeration cycle,
The electrical component controls an electrical component fixed portion that houses a power circuit board, which is a substrate on which a circuit for supplying power for driving the blower fan and the refrigeration cycle is mounted, and controls the blower fan and the refrigeration cycle An electrical component movable portion that houses a control circuit board, which is a board on which a circuit for mounting is mounted,
The electrical component fixing portion is fixed to the base between one end face of the heat exchanger and one end face of the housing,
The movable part of the electrical part is rotatably and detachably attached to the front surface of the fixed part of the electrical part, and when the movable part of the electrical part is rotated toward the inside of the housing, the front surface of the fixed part of the electrical part In a state in which the drain unit cannot be detached from the front surface of the electrical component fixing portion when it enters between one end surface of the drain unit and one end surface of the housing and rotates toward the outside of the housing. An indoor unit of an air conditioner characterized by being detachable. On the front surface of the electric part fixing part, a fixing part attaching means comprising an attaching shaft supported by an attaching shaft rib is provided,
On the rear surface of the electric part movable part, there is provided a movable part attaching means comprising a pair of bearing members that form a shaft entry hole in which both ends of the attachment shaft can enter and leave, respectively. Opposing each other, and having a stepped end surface formed with a narrow end surface where the interval between each other becomes narrower and a wide end surface where the interval between each other becomes wider,
When the electric part moving part is rotated toward the inside of the housing, the rear surface of the electric part moving part is parallel to the front surface of the electric part fixing part, and the narrow end face is fixed to the electric part fixing part. By facing the front surface of the part, the mounting shaft is blocked by the narrow end face and cannot be detached from the shaft entry hole,
When the electric part movable part is rotated toward the outside of the housing, the rear surface of the electric part movable part is perpendicular to the front surface of the electric part fixing part, and the wide end surface is the electric part fixing part. The indoor unit of an air conditioner according to claim 1, wherein the mounting shaft can be detached from the shaft entry hole via the space between the wide end surfaces by facing the front surface of the air conditioner. The electrical component fixing portion includes a power supply box that houses the power supply circuit board,
The electrical part movable part comprises a movable part base for holding the control circuit board,
The indoor unit of an air conditioner according to claim 1 or 2, wherein a width of the movable part base is larger than a width of the power supply box.

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