JP6180262B2 - Air conditioner indoor unit - Google Patents

Description

  The present invention relates to an indoor unit of an air conditioner.

  Some air conditioners have an indoor unit installed in the ceiling of a space to be air-conditioned (for example, a room, a room in a building, a warehouse, etc.). Here, the space in the ceiling is limited, and it may be difficult to install an indoor unit or the like in the ceiling. That is, when an indoor unit is installed in the ceiling, the space between the ceiling portion (for example, a wall surface in the ceiling) and the air inlet of the indoor unit body cannot be secured, and air is sufficiently taken into the indoor unit body. May not be possible.

  Then, the indoor unit of the air conditioner installed in the ceiling has been proposed that can change the position of the suction port between the lower surface of the indoor unit body and the lateral side surface of the indoor unit body (for example, Patent Document 1). The technique described in Patent Document 1 is to close the lower surface of the indoor unit main body by attaching an outer plate material constituting a part of the outer shell of the indoor unit main body to the lower surface of the indoor unit main body, while the side surface is opened and sucked A mouth is formed. Conversely, the outer plate is attached to the side surface of the indoor unit body to close the side surface of the indoor unit body, while the lower surface is opened to form a suction port.

  Thus, the indoor unit of the air conditioning apparatus described in Patent Literature 1 is configured to be able to change the lower suction specification and the horizontal suction specification so that it can cope with various installation situations in the ceiling. For this reason, for example, when the space between the side surface of the indoor unit main body and the ceiling portion facing the side surface cannot be secured, the air in the indoor unit main body can be changed by changing the lower surface of the indoor unit main body to the suction port. Can be imported.

JP-A-8-270978 (see, for example, FIGS. 4 and 5)

  In the technique described in Patent Document 1, the depth of the installation space in the ceiling, that is, the horizontal width of the installation space is small, and the interval between the side surface of the indoor unit main body and the ceiling portion facing the side surface cannot be secured. In this case, the amount of air taken into the indoor unit main body can be prevented from being reduced by adopting the lower suction specification. However, in the lower suction specification, the lower surface of the indoor unit main body is opened. For example, if the building has a low ceiling or the sound in the ceiling is likely to resonate, the rotational sound of the blower motor mounted on the indoor unit, A fan's wind noise may reach the air-conditioned space, which may impair user comfort. For this reason, there is a case where the lower suction specification is not desired.

  That is, in the technique described in Patent Document 1, when the horizontal width of the installation space in the ceiling is small, there is a problem that it is difficult for air to be taken into the indoor unit body if the horizontal suction specification is used.

  The present invention has been made to solve the above problems, and even if the horizontal width of the installation space in the ceiling is small, the amount of air taken into the indoor unit main body is reduced. An object of the present invention is to provide an indoor unit of an air conditioner that can suppress the above.

An indoor unit of an air conditioner according to the present invention includes a main body having a lower surface suction port formed on a lower surface and a first lateral surface suction port formed on a first lateral surface, a lower surface suction port, and a first lateral side surface. In an indoor unit of an air conditioner having a cover plate for closing one of the suction ports and opening the other of the lower surface suction port and the first lateral side suction port to take air into the main body, the lower surface suction A filter portion that can be attached to either the opening or the first lateral side suction port and attached to the open side, and is detachably provided on the first lateral side and the lower surface, and holds the filter portion A linear filter section rail, and a filter section provided at an upper edge of a portion of the first lateral side where the first lateral side suction port is formed, and a contact surface with the filter section is inclined A first side surface suction port on the upper surface of the main body; When the upper surface suction port for taking air into the main body is formed, the cover plate closes the lower surface suction port, and the first lateral side suction port is opened, the filter section rail is formed on the first lateral side surface. The filter unit is provided in the first lateral side suction port and the upper surface suction port, and the portion of the filter unit above the upper end of the filter unit rail is the filter unit. It is curved in contact with the contact surface of the guide .

  According to the indoor unit of the air conditioner according to the present invention, since it has the above configuration, the amount of air taken into the indoor unit body is reduced even if the horizontal width of the installation space in the ceiling is small. Can be suppressed.

It is (a) perspective view and (b) longitudinal cross-sectional view at the time of making the indoor unit of the air conditioning apparatus which concerns on Embodiment 1 of this invention into a horizontal suction specification. It is a schematic diagram at the time of installing the indoor unit of the horizontal suction specification shown in FIG. 1 in the ceiling. It is the (a) perspective view and (b) longitudinal cross-sectional view at the time of making the indoor unit of the air conditioning apparatus which concerns on Embodiment 1 of this invention into a lower suction specification. It is a schematic diagram at the time of installing the indoor unit of the lower suction specification shown in FIG. 3 in the ceiling. It is the (a) perspective view and (b) longitudinal cross-sectional view at the time of using together a horizontal suction specification and an upper suction specification about the indoor unit of the air conditioning apparatus which concerns on Embodiment 1 of this invention. It is a schematic diagram at the time of installing the indoor unit of the horizontal suction specification and the upper suction specification shown in FIG. 5 in the falling ceiling. It is a perspective view explaining the attachment method of the filter part of the indoor unit of the air conditioning apparatus which concerns on Embodiment 2 of this invention, and the attached state. It is a longitudinal cross-sectional view parallel to the transversal direction in the state where the filter part was attached to the indoor unit of the horizontal suction specification and the upper suction specification shown in FIG. It is a perspective view of the filter part in the curved state. It is a perspective view explaining the attachment method of the filter part of the indoor unit made into the lower suction specification, and the attached state. It is explanatory drawing of the filter part of the indoor unit of the air conditioning apparatus which concerns on Embodiment 2 of this invention. It is a perspective view of the indoor unit of the air conditioning apparatus which concerns on Embodiment 3 of this invention. It is explanatory drawing of the state which open | released the 2nd side surface suction port of the 2nd side surface in addition to the 1st side surface suction port of the 1st side surface of the indoor unit shown in FIG. It is explanatory drawing of the indoor unit of the air conditioning apparatus which concerns on Embodiment 4 of this invention. It is a perspective view of an indoor unit in the state where a large blocking plate and a small blocking plate are attached to the indoor unit so as to close the first lateral side suction port. It is a perspective view of an indoor unit in a state where a large blocking plate and a small blocking plate are attached to the indoor unit so as to close the lower surface suction port. It is explanatory drawing about an example of the structure which removes a part of filter part. It is a perspective view at the time of obstruct | occluding the 1st side surface suction port of the indoor unit of the air conditioner concerning Embodiment 5 of this invention with a dummy filter, and setting it as a lower suction specification. It is a perspective view at the time of closing the lower surface suction inlet of the indoor unit of the air conditioning apparatus which concerns on Embodiment 5 of this invention with a dummy filter, and setting it as a horizontal suction specification.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Embodiment 1 FIG.
1A is a perspective view and FIG. 1B is a longitudinal sectional view of an indoor unit 1 of an air-conditioning apparatus according to Embodiment 1 having a horizontal suction specification. FIG. 2 is a schematic diagram when the indoor unit 1 of the horizontal suction specification shown in FIG. Various configurations of the indoor unit 1 will be described with reference to FIGS. 1 and 2.

(Indoor unit 1)
The indoor unit 1 is connected to an outdoor unit (not shown) through a refrigerant pipe. As shown in FIG. 1A, the indoor unit 1 includes a rectangular parallelepiped main body 1 </ b> A that constitutes an outline of the indoor unit 1.
That is, the main body 1A has four lateral sides, an upper surface B1 and a lower surface B2. The four lateral surfaces are the first lateral surface A1 in which the first lateral surface suction port 71 is formed, the second lateral surface A2 and the third lateral surface orthogonal to the first lateral surface A1. A3 and a fourth lateral surface A4 in which the air outlet 74 is formed. When the direction from the first lateral surface A1 to the fourth lateral surface A4 is the front direction (front direction), the right side is the second lateral surface A2 and the left side is the third direction with respect to the front direction. This is the lateral side surface A3.

  The main body 1A of the indoor unit 1 includes an upper panel 11 that forms an outline of the upper surface B1 of the indoor unit 1, a panel 12 that forms the second lateral side A2, and a panel that forms the third lateral side A3 (not shown). ) And a cover plate 14 used to close the lower surface B2 or the first lateral surface A1. The cover plate 14 is attached to the outline of the indoor unit 1 with screws or the like, for example. However, it is not limited to a screw, For example, the structure attached to the outline of the indoor unit 1 with a nail | claw etc. may be sufficient. In the main body 1A of the indoor unit 1, the heat exchanger chamber 2 provided with the indoor heat exchanger 51 functioning as an evaporator or a condenser, and the air outside the indoor unit 1 after taking air into the indoor unit 1 And a blower chamber 3 provided with a blower 41 that discharges air.

  The indoor unit 1 is a ceiling-embedded indoor unit. That is, as shown in FIG. 2, for example, the indoor unit 1 is a space S formed between a building housing 81 at the upper part of an air-conditioning target space (for example, a room, a room of a building, a warehouse, etc.) and a falling ceiling 33. Placed in. In this space S, a ceiling inlet 31 and a ceiling outlet 32 are formed. That is, the air taken into the space S from the ceiling suction port 31 flows into the indoor unit 1, and the air that flows out from the indoor unit 1 into the space S is supplied to the air-conditioning target space via the ceiling outlet 32.

  At the upper four corners of the main body 1A of the indoor unit 1, there are provided suspension fittings 53 that are used to suspend and fix the indoor unit 1 in the space S. The hanging metal fitting 53 is fixed to, for example, a building housing 81 and is fixed to a bar-like member extending in the vertical direction, and the indoor unit 1 is suspended in the space S.

(Heat exchanger room 2)
The heat exchanger chamber 2 communicates with the blower chamber 3 so that air is supplied from the blower chamber 3. The heat exchanger chamber 2 has two opposing surfaces that are open. That is, the heat exchanger chamber 2 is opened so that one communicates with the blower chamber 3, and the blower outlet 74 is formed on the other and opened. The heat exchanger chamber 2 includes an indoor heat exchanger 51 that exchanges heat between air supplied from the blower 41 of the blower chamber 3 and refrigerant supplied from an outdoor unit (not shown), and an indoor heat exchanger 51. A drain pan 52 for storing the generated condensed water (drain water) is mounted.

  The indoor heat exchanger 51 exchanges heat between air taken into the heat exchanger chamber 2 and refrigerant supplied from an outdoor unit (not shown). For example, a plurality of fins standing in parallel A fin tube heat exchanger having a tube connected to the fin and supplied with a refrigerant may be used. The indoor heat exchanger 51 is supported and provided on the drain pan 52 in a posture inclined with respect to the bottom surface of the heat exchanger chamber 2. That is, in the state shown in FIG. 1 and FIG. 2, the indoor heat exchanger 51 is positioned such that the end side on the blower chamber 3 side of the indoor heat exchanger 51 is located on the lower side and the opposite end side on the upper side. It is mounted in the heat exchanger chamber 2 in an inclined posture so as to be positioned. In addition, the aspect of this indoor heat exchanger 51 is an example, and is not limited to this aspect. For example, the indoor heat exchanger 51 may be in an inclined posture so that the end portion on the blower chamber 3 side of the indoor heat exchanger 51 is located on the upper side and the opposite end portion is located on the lower side. Good. In addition, the indoor heat exchanger 51 is inclined so that the end portion side on the blower chamber 3 side is positioned on the lower side, and the end portion side on the blower chamber 3 side is positioned on the upper side with the heat exchanger positioned on the upper side on the opposite side. In this way, the shape may be a combination of a heat exchanger that is inclined and the opposite side is located on the lower side. The drain pan 52 supports the indoor heat exchanger 51 and stores drain water dripped from the indoor heat exchanger 51. For example, the drain pan 52 is formed by forming a resin or the like in a preset shape. is there.

(Blower room 3)
The blower chamber 3 communicates with the heat exchanger chamber 2 so that the air taken into the blower chamber 3 is supplied to the subsequent heat exchanger chamber 2. That is, the blower chamber 3 is open on the heat exchanger chamber 2 side so that the air discharged from the blower 41 is supplied to the heat exchanger chamber 2 side. The blower chamber 3 is formed with a first lateral side suction port 71 that is used to set the indoor unit 1 to the horizontal suction specification, a lower surface suction port 72 that is used to set the indoor unit 1 to the lower suction specification, and the like. (See FIG. 3). As shown in FIGS. 1 and 2, the lower surface suction port 72 is closed in the case of the horizontal suction specification, and as shown in FIGS. The side suction port 71 is closed.

  The blower chamber 3 is provided with a blower 41 that is used to take air into the blower chamber 3 and a filter unit 61 that collects dust, dust, and the like contained in the air. The blower chamber 3 is provided with two blowers 41 arranged in a direction perpendicular to the air flow direction. The number of blowers 41 is not limited to two. A control box 54 that is used to control the rotational speed of the motor of the blower 41 and the like is provided on the side of the blower chamber 3. The blower 41 is composed of, for example, a sirocco fan. The blower 41 includes a rotating blade (not shown), a motor that rotates the blade, and a fan case 42 in which the blade is accommodated.

  Furthermore, the blower chamber 3 is provided with a knockout hole 76 so that the upper surface B1 can also be opened. That is, the blower chamber 3 of the indoor unit 1 is configured such that a user, a serviceman, or the like can form the upper surface suction port 73 (see FIG. 5) by punching and opening the knockout hole 76. .

  The filter unit 61 includes a filter 61A and a frame portion 61B that holds the filter 61A (see FIG. 9). The frame portion 61B includes a longitudinal frame 61B1 formed in parallel to the longitudinal direction of the first lateral side suction port 71 or the lower surface suction port 72, and the short side direction of the first lateral side suction port 71 or the lower surface suction port 72. And a short frame 61B2 formed in parallel. The frame portion 61B is configured by connecting a plurality of long frames 61B1 and a plurality of short frames 61B2 so as to intersect each other. As the material of the frame portion 61B, for example, a resin material such as polypropylene may be employed. Thereby, the frame part 61B can be provided with appropriate flexibility and fatigue resistance.

As shown in FIG. 1, the filter unit 61 is attached in parallel to the first lateral side surface A <b> 1 when the indoor unit 1 has the horizontal suction specification. The filter unit 61 is disposed so as to face the surface on which the first lateral side suction port 71 is formed, and collects dust contained in the air taken into the blower chamber 3 through the first lateral side suction port 71. Used to do. The filter part rail 17 which holds the filter part 61 is provided in the formation position of the 1st side surface suction inlet 71 among 1st side surface A1. The filter section rail 17 is detachably attached to the indoor unit 1 with, for example, screws. That is, when the cover plate 14 closes the lower surface suction port 72 of the lower surface B2, the filter rail 17 is attached to the side of the first lateral surface suction port 71 of the first lateral surface A1. The filter section rail 17 is provided in parallel to the direction from the lower surface B2 of the indoor unit 1 toward the upper surface B1.
On the other hand, the filter rail 17 is attached to the side of the lower surface suction port 72 of the lower surface B2 when the cover plate 14 closes the first side surface suction port 71 of the first lateral surface A1. The filter section rail 17 is provided in parallel to the direction from the first lateral side surface A1 to the fourth lateral side surface A4 of the indoor unit 1.

[About horizontal suction specifications]
As shown in FIG. 2, the air in the air-conditioning target space is sucked into the space S from the ceiling suction port 31 and blown out from the ceiling air outlet 32. In the space S shown in FIG. 2, the installation space of the indoor unit 1, that is, the horizontal width of the space S (the width in the direction parallel to the Y direction of the indoor unit 1) can be secured. In such a case, the cover plate 14 closes the lower surface suction port 72 of the indoor unit 1 to open the first lateral side surface suction port 71, and the indoor unit 1 is set to the lateral suction specification. 2, for example, the indoor unit 1 is placed in the space S so that the air outlet 74 is located on the ceiling air outlet 32 side and the first lateral side air inlet 71 is located on the ceiling air inlet 31 side. To place.
Thereby, the space through which the air which passed the ceiling suction inlet 31 flows is ensured between the 1st lateral side suction inlet 71 and the building housing 81, and the 1st lateral side suction of the indoor unit 1 from the ceiling suction inlet 31 is secured. Air smoothly flows into the mouth 71. Further, as shown in FIG. 2, the first lateral side suction port 71 of the indoor unit 1 is positioned on the ceiling blower outlet 32 side above the ceiling suction port 31, and the filter unit 61 is connected to the indoor unit 1. Easy to put on and take off.

[Lower suction specifications]
3A is a perspective view and FIG. 3B is a longitudinal sectional view when the indoor unit 1 of the air-conditioning apparatus according to Embodiment 1 has a lower suction specification. FIG. 4 is a schematic diagram when the indoor unit 1 having the lower suction specification shown in FIG.
The space S in FIG. 4 has a smaller width in the direction parallel to the Y direction of the indoor unit 1 than the space S in FIG. For this reason, if the indoor unit 1 in the state of the horizontal suction specification is disposed in the descending ceiling 33 in FIG. 4, the air in the space S wraps around the lower surface B2 of the indoor unit 1 and then the first horizontal The air flows into the side suction port 71, and the air flow is less likely to be smooth.

Therefore, in the case of the space S in FIG. 4, as shown in FIG. 3, the first lateral side suction port 71 of the indoor unit 1 is closed by the cover plate 14 to open the lower surface suction port 72, and the indoor unit 1. Is the lower suction specification. Then, as shown in FIG. 4, the indoor unit 1 is arranged in the space S so that the lower surface suction port 72 faces the ceiling suction port 31 and the air outlet 74 faces the ceiling air outlet 32.
As a result, air smoothly flows from the ceiling suction port 31 to the lower surface suction port 72 of the indoor unit 1. In addition, as shown in FIG. 4, the lower surface suction port 72 of the indoor unit 1 is located at a position opposite to the ceiling suction port 31, so that the filter unit 61 can be easily attached to and detached from the indoor unit 1. Furthermore, if the indoor unit 1 is of a lower suction specification, the width in the direction parallel to the Y direction of the indoor unit 1 in the space S may be reduced accordingly, so that the direction of the falling ceiling 33 in the direction parallel to the Y direction of the indoor unit 1 The width can also be reduced.

  However, in the lower suction specification, the lower surface B2 of the indoor unit 1 is opened. For this reason, for example, if it is a building where the position of the falling ceiling 33 is low or the sound in the falling ceiling 33 is likely to sound, the rotating sound of the fan 41 motor, the wind noise of the fan of the fan 41, etc. reach the air-conditioning target space. The user's comfort may be impaired. Thus, for reasons such as impairing the user's comfort, there is a case where it is desired to use the horizontal suction specification instead of the lower suction specification. Therefore, the indoor unit 1 is configured to be able to use both the horizontal suction specification and the upper suction specification described below.

[About combined use of horizontal suction specification and upper suction specification]
FIG. 5: is the (a) perspective view and (b) longitudinal cross-sectional view at the time of using together a horizontal suction specification and an upper suction specification about the indoor unit 1 of the air conditioning apparatus which concerns on Embodiment 1. FIG. FIG. 6 is a schematic diagram when the indoor unit 1 of the horizontal suction specification and the upper suction specification shown in FIG.

  The space S in FIG. 6 is the same as the space S in FIG. 4, and it is difficult to secure a width in a direction parallel to the Y direction of the indoor unit 1. In addition, it is a situation where it is desired to suppress the user's comfort from being impaired by the rotational sound of the blower 41 motor, the wind noise of the fan of the blower 41, and the like. Therefore, in order to obtain the upper suction specification, the knockout hole 76 is removed, and the upper surface suction port 73 is formed. Thereby, air can also be sucked in from the upper surface B1 of the indoor unit 1.

  The upper surface suction port 73 is formed to extend in the longitudinal direction (X direction) of the first lateral surface suction port 71 and the lower surface suction port 72. In the example of FIG. 3, although the upper surface suction inlet 73 has shown the example formed three, it is not limited to it. For example, it may be singular, two, or four or more. The upper surface suction port 73 is formed on the upper surface B <b> 1 of the blower chamber 3 of the indoor unit 1. More specifically, it is formed not on the air outlet 74 side but on the opposite side of the first lateral side air inlet 71 on the upper surface B1 of the blower chamber 3. Thereby, the air flowing into the space S from the ceiling suction port 31 smoothly flows into the indoor unit 1 as much as the flow path connecting the ceiling suction port 31 and the upper surface suction port 73 becomes shorter.

  The means for forming the upper surface suction port 73 is not limited to providing a knockout hole 76 in which the upper surface suction port 73 is formed by punching into the indoor unit 1. For example, the upper surface suction port 73 may be formed, covered with a plate-like member, and removed when necessary. Further, the upper surface suction port 73 is formed, and when the upper surface suction port 73 is closed, it may be closed with an adhesive tape or the like. A user, a serviceman, or the like can open the upper surface suction port 73 by peeling off the adhesive tape or cutting it with a cutter or the like.

[Effect of indoor unit 1 of air-conditioning apparatus according to Embodiment 1]
In the indoor unit 1 of the air conditioner according to Embodiment 1, an upper surface suction port 73 that takes in air into the main body 1A is formed together with the first lateral surface suction port 71. For this reason, even if the horizontal width of the installation space in the ceiling 33 (the width in the direction parallel to the Y direction of the indoor unit 1) is small, the main body of the indoor unit 1 in the case where the indoor unit 1 has the lateral suction specification It can suppress that the quantity of the air taken in in 1A reduces.

When the indoor unit 1 of the air-conditioning apparatus according to Embodiment 1 has the horizontal suction specification, or when the horizontal suction specification and the upper suction specification are used in combination, the flat filter portion 61 is curved and the first unit is curved. It can be provided in the first lateral side suction port 71 of the lateral side surface A1 and the upper surface suction port 73 of the upper surface B1. Furthermore, in the case of the lower suction specification, the filter portion 61 can be provided in the lower surface suction port 72 of the lower surface B2 while being in a flat state. That is, the filter part 61 is provided in any of the lower surface suction port 72, the 1st side surface suction port 71, and the upper surface suction port 73 by changing a shape.
As described above, in the indoor unit 1 of the air-conditioning apparatus according to Embodiment 1, the filter unit 61 is common to the lateral suction specification, the lateral suction specification, the upper suction specification, and the lower suction specification. That is, by curving the shape of the filter unit 61 or changing the arrangement position, the filter unit 61 can be used in any of the horizontal suction specification, the horizontal suction specification, the upper suction specification, and the lower suction specification. it can. Thereby, it is not necessary to prepare a dedicated filter unit 61 corresponding to the specifications such as the horizontal suction specification, the horizontal suction specification, the upper suction specification, and the lower suction specification, and the convenience of the indoor unit 1 of the air conditioner is improved. ing.

Embodiment 2. FIG.
FIG. 7 is a perspective view for explaining a mounting method and a mounted state of the filter unit 61 of the indoor unit 1B of the air-conditioning apparatus according to Embodiment 2. In FIG. 7, the indoor unit uses both the horizontal suction specification and the upper suction specification in the same manner as the indoor unit of FIG. 5 described above. FIG. 8 is a longitudinal sectional view parallel to the lateral direction in a state where the filter unit 61 is attached to the indoor unit of the horizontal suction specification and the upper suction specification shown in FIG. FIG. 9 is a perspective view of the filter unit 61 in a curved state. The indoor unit 1B will be described with reference to FIGS. In the description of the second embodiment, the same reference numerals are given to the portions common to the first embodiment, and differences will mainly be described.
In the second embodiment, a single filter unit 61 can collect dust, dust, and the like contained in the air sucked from both the first lateral surface suction port 71 and the upper surface suction port 73. It is. That is, the indoor unit 1B according to the second embodiment is provided with the filter guide 19 that can maintain the curved state of the filter unit 61 in a state where the filter unit 61 is attached to the indoor unit 1. .

  The filter guide 19 is used when the first lateral side suction port 71 and the upper surface suction port 73 are opened, and holds the filter unit 61 in a curved state. The filter guide 19 is attached to the upper side of the first lateral side suction port 71 in the first lateral side surface A1. That is, the filter guide 19 is provided above the opening portion of the first lateral side suction port 71. As shown in FIG. 8, the filter guide 19 is inclined with respect to the upper surface B1 and the lower surface B2, for example, from the first lateral surface suction port 71 side of the first lateral surface A1 to the upper surface suction port 73 side of the upper surface B1. It is good to comprise by the plate-shaped member provided so that it may extend toward. Further, the upper panel 11 is formed with a recess 11A so as to protrude from the lower side to the upper side.

  The filter unit 61 is attached as follows by a user, a serviceman, or the like. The filter unit 61 is slid upward along the filter unit rail 17. The filter 61 is forcibly bent by the filter guide 19 when it has advanced to some extent upward. That is, the filter unit 61 is curved from the first lateral surface A1 side to the upper surface B1 side. When the filter unit 61 is further inserted, the upper end portion of the filter unit 61 contacts the inner surface of the upper panel 11. In a state where the upper end portion of the filter unit 61 is in contact with the inner surface of the upper panel 11, the filter unit 61 faces the first lateral side suction port 71 and the upper surface suction port 73. When the upper end of the filter unit 61 comes into contact with the inner surface of the upper panel 11, the filter unit 61 cannot be slid upward and the filter unit 61 is positioned. Since the upper end of the filter part 61 enters the recess 11A, the filter part 61 cannot be slid upward. An upper surface suction port 73 is formed in the recess 11A.

Further, as a structure for fixing the lower end of the filter unit 61 to the indoor unit 1, for example, a claw or the like is formed on the filter unit 61 and a horizontal beam or the like is formed on the first lateral side surface of the indoor unit 1. Good. That is, it is preferable to prevent the filter unit 61 from coming off the filter unit rail 17 by hooking the claws of the filter unit 61 to a horizontal beam or the like formed on the first lateral side surface A1 of the indoor unit 1.
In addition, although the filter part rail 17 is demonstrated as what is linearly formed so that it may extend in the direction which goes to the upper surface B1 from the lower surface B2 of the indoor unit 1, it is not limited to it. The filter guide rail 19 may be provided in a curved shape without providing the filter guide 19 so that the filter portion 61 can be formed in a curved shape using only the rail. However, the embodiment in which the filter rail 17 is linear and the filter guide 19 is provided is attached to the side of the first lateral side suction port 71 and to the side of the lower surface suction port 72. Since it can be shared in some cases, an increase in cost can be suppressed.

  FIG. 10 is a perspective view for explaining the filter mounting method and the mounted state of the indoor unit 1B having the lower suction specification. From the state where the side suction specification or the side suction specification and the upper suction specification are used together, the filter guide 19 is removed, and the filter portion 61, the filter portion rail 17 and the cover plate 14 are replaced, and the lower suction specification of FIG. State. In the case of the lower suction specification, the width of the space S in the direction parallel to the short direction of the indoor unit 1 cannot be secured in many cases. For this reason, the filter part rail 17 is attached to the lower surface B2. Thereby, a service person or the like can attach the filter unit 61 to the indoor unit 1 by sliding the filter unit 61 in the direction from the fourth lateral surface A4 toward the first lateral surface A1. ing.

  Moreover, as a structure which fixes the filter part 61 to the lower surface B2 of the indoor unit 1, it is good to employ | adopt what formed the nail | claw etc. in the filter part 61 and formed the horizontal beam etc. in the lower surface B2 of the indoor unit 1, for example. That is, claws are formed at the end on the first lateral side A1 side and the end on the fourth lateral side A4 side of the filter unit 61, and these claws are formed on the lower surface B2 of the indoor unit 1. It is preferable to prevent the filter part 61 from coming off from the filter part rail 17 by hooking it on the like.

  FIG. 11 is an explanatory diagram of the filter unit 61 of the indoor unit 1B of the air-conditioning apparatus according to Embodiment 2. 11A is an overall view of the filter unit 61, and FIG. 11B is an enlarged view of the main part of FIG. 11A. A part of the short frame 61B2 of the frame 61B of the filter unit 61 is formed thin. That is, the short frame 61B2 is formed to be thinner at the portion between adjacent crossing portions than at the crossing portion with the long frame 61B1. The thin part is the thin part 61d. By providing the thin part 61d in the filter part 61, the filter part 61 can be easily bent in the lateral direction. That is, the filter unit 61 is easily bent by the filter guide 19.

  The filter portion 61 may be provided with reinforcing ribs 61 c formed so as to extend in the longitudinal direction of the filter portion 61. The reinforcing rib 61c is formed on the longitudinal frame 61B1 of the frame portion 61B. In other words, the reinforcing rib 61 c is formed on the frame portion 61 </ b> B so as to extend in the longitudinal direction of the filter portion 61. Thereby, the intensity | strength in the longitudinal direction of the filter part 61 is securable.

[Effect of indoor unit 1B of the air-conditioning apparatus according to Embodiment 2]
The air conditioner indoor unit 1B according to Embodiment 2 has the following effects in addition to the effects of the air conditioner indoor unit 1 according to Embodiment 1.
The indoor unit 1B of the air-conditioning apparatus according to Embodiment 2 is provided with a filter guide 19. For this reason, even when the upper surface suction port 73 is added, dust in the air taken in from the first lateral surface suction port 71 and the upper surface suction port 73 can be collected by the single filter unit 61.

  In addition, the filter unit 61 can be attached to and detached from the indoor unit 1 by a single operation from below the indoor unit 1 by a user, a serviceman, or the like. That is, it is easy to check the degree of dirt and to attach and detach for cleaning.

Embodiment 3 FIG.
FIG. 12 is a perspective view of an indoor unit 1C of the air-conditioning apparatus according to Embodiment 3. FIG. 13 shows a state in which the second lateral side suction port 75 of the second lateral side surface A2 is opened in addition to the first lateral side suction port of the first lateral side surface A1 of the indoor unit 1C shown in FIG. It is explanatory drawing. In the description of the third embodiment, the same reference numerals are given to the portions common to the first and second embodiments, and differences will mainly be described.
When the horizontal suction specification and the upper suction specification described in the first embodiment are used in combination, a space for sucking air between the building housing 81 and the upper surface B1 of the indoor unit 1 may be secured about 20 mm. preferable. The indoor unit 1C according to Embodiment 3 considers the case where this space cannot be secured.

  In the indoor unit 1C, a second lateral side suction port 75 is formed in the second lateral side A2. More specifically, a rectangular second lateral side suction port 75 is formed in a portion of the blower chamber 3 in the second lateral side surface A2. The indoor unit 1C is provided with a horizontal blocking plate 20 that is removed from the second horizontal side surface A2 when it is desired to open the second horizontal side surface suction port 75.

A horizontal filter 62 is attached to the second lateral side suction port 75, and dust and dust contained in the air flowing into the blower chamber 3 from the second lateral side suction port 75 can be collected. It is like that.
The horizontal filter unit 62 also has a filter and a frame portion for holding the filter, as with the filter unit 61. The horizontal filter part 62 is supported by the second horizontal side filter part rail 18 provided on both sides of the second horizontal side suction port 75. The second lateral surface filter section rail 18 is formed to extend in a direction from the lower surface B2 of the indoor unit 1C toward the upper surface B1.

[Effects of indoor unit 1C of the air-conditioning apparatus according to Embodiment 3]
The indoor unit 1C of the air-conditioning apparatus according to Embodiment 3 is provided with a second lateral side suction port 75. As a result, (1) the width in the direction parallel to the Y direction of the indoor unit 1 cannot be secured for the space S in the descending ceiling 33, (2) it is necessary to consider wind noise of the fan of the blower 41, etc. 3) The following effects can be obtained even under the condition that a space for sucking air cannot be secured between the building housing 81 and the upper surface B1 of the indoor unit 1.
That is, if the width in the direction parallel to the X direction of the indoor unit 1 can be secured for the space S in the falling ceiling 33, the same effect as the indoor unit 1 of the air conditioner according to Embodiment 1, that is, the blower of the indoor unit 1C Air can be taken in more reliably in the chamber 3.

Embodiment 4 FIG.
FIG. 14 is an explanatory diagram of the indoor unit 1D of the air-conditioning apparatus according to Embodiment 4. In the description of the fourth embodiment, the same reference numerals are given to the portions common to the first to third embodiments, and differences will mainly be described. A part of the filter 61 </ b> A of the filter unit 61 is close to a flat part 42 a formed at the lower part of the fan case 42. That is, since it is assumed that the indoor unit 1D is installed in the ceiling 33, a corresponding reduction in height (thinning) is required. A predetermined interval is provided between the fan case 42 and the first lateral side suction port 71, and the filter 61A provided in the first lateral side suction port 71 and the fan case 42 are close to each other. The suction area (opening area) is not reduced.

  However, the distance between the fan case 42 and the lower surface suction port 72 is smaller than the distance between the fan case 42 and the first lateral surface suction port 71, and the filter provided in the lower surface suction port 72. 61A and the fan case 42 are close to each other. For this reason, there is a concern that the substantial suction area of the lower surface suction port 72 is reduced, the amount of air taken into the indoor unit 1D is reduced, and the sound when air is sucked into the lower surface suction port 72 is increased. . Therefore, in the indoor unit 1D according to Embodiment 4, the suction area of the lower surface suction port 72 is larger than that of the first lateral side surface suction port 71. Specifically, the widths in the longitudinal direction of the first lateral surface suction port 71 and the lower surface suction port 72 are the same, but the lower surface suction port 72 is shorter in the lateral direction than the first lateral side surface suction port 71. The width has increased. Thereby, the substantial suction area of the 1st side surface suction inlet 71 and the lower surface suction inlet 72 is made comparable.

  FIG. 15 is a perspective view of the indoor unit 1 </ b> D in a state where the large blocking plate 15 and the small blocking plate 16 are attached to the indoor unit 1 so as to close the first lateral side suction port 71. FIG. 16 is a perspective view of the indoor unit 1 </ b> D in a state where the large blocking plate 15 and the small blocking plate 16 are attached to the indoor unit 1 so as to close the lower surface suction port 72. FIG. 17 is an explanatory diagram of an example of a structure in which a part of the filter unit 61 is removed. With reference to FIGS. 15-17, the large blocking plate 15, the small blocking plate 16, and the filter part 61 are demonstrated.

The indoor unit 1 </ b> D is configured such that the suction area of the lower surface suction port 72 is larger than that of the first lateral side surface suction port 71. For this reason, the lower suction specification (FIG. 15) and the horizontal suction specification (FIG. 16) differ in the manner of use of the large blocking plate 15 and the small blocking plate 16.
That is, in the lower suction specification, as shown in FIG. 15, the large blocking plate 15 and the small blocking plate 16 are arranged on the first lateral side surface A <b> 1 of the indoor unit 1 such that the small blocking plate 16 overlaps the large blocking plate 15. Fixed to.
On the other hand, in the horizontal suction specification, as shown in FIG. 16, the large blocking plate 15 and the small blocking plate 16 are arranged so as not to overlap, and the large blocking plate 15 and the small blocking plate 16 are placed on the lower surface B <b> 2 of the indoor unit 1. Fixed. In addition, although it is description of this side suction specification, it is the same also when it is the case where it uses in the case of using together the upper suction specification and the side suction specification, and the case of suction from the two side surfaces of Embodiment 3.

  In this way, the bottom plate inlet 72 is shorter than the first lateral side inlet 71 by fixing the large plate 15 and the small plate 16, which are two divided plates, to the indoor unit 1. Any suction surface can be closed even if the width of is increased. The large lid plate 15 and the small lid plate 16 may be foldable by a hinge structure.

  FIG. 17 is an explanatory diagram of an example of a structure in which a part of the filter unit 61 is removed. FIG. 17A is a perspective view of the filter unit 61, and FIG. 17B is an enlarged view of a portion indicated by a square in FIG. In Embodiment 4, since the suction area of the lower surface suction port 72 is larger than that of the first lateral surface suction port 71, the filter for the first lateral surface suction port 71, the lower surface suction port 72. Therefore, the filter unit 61 can be separated so that a separate filter need not be prepared separately.

  In the fourth embodiment, the filter section 61 has a first filter section (filter section large 61a) and a second filter section (filter section small 61b) that are divided. That is, the filter unit 61 has a first filter unit (filter unit large 61a) that constitutes a part of the filter unit 61, and a second filter unit (filter unit small 61b) that constitutes the rest of the filter unit 61. doing. And the filter part large 61a and the filter part small 61b are connected by the connection part 65, and the integral filter part 61 is comprised. More specifically, the filter part large 61a that is the first filter part and the filter part small 61b that is the second filter part are opposed to the end side of the filter part large 61a and the end part side of the filter part large 61a. A plurality of connecting portions 65 are provided to connect the end portions of the filter portion small 61b. The connecting portion 65 is integrally formed with resin or the like together with the frame portion 61B, for example.

  At the time of shipment of the indoor unit 1D, the filter unit 61 is attached to the lower surface suction port 72 as a lower suction specification. And when changing to a horizontal suction specification, the filter part small 61b is removed and the filter part large 61a is attached to the 1st horizontal side surface inlet 71. FIG. In addition, a user, a service person, etc. can cut | disconnect the connection part 65 with a nipper etc., for example.

The means for connecting the filter part large 61 a and the filter part small 61 b is not limited to the connecting part 65. For example, a means for making the portion to be cut out of the frame portion 61B thin over the entire length may also be used. A user, a serviceman, or the like can obtain the large filter portion 61a by cutting the thin portion of the frame portion 61B with a cutter or the like.
In addition, you may make the thin part of the frame part 61B into groove shape. Thereby, the guide function at the time of cut | disconnecting the frame part 61B can be given. That is, a user, a serviceman, or the like can advance the cutter blade along the groove when cutting with the above-described cutter or the like. Moreover, you may make the thin part of the frame part 61B into the perforation shape which cut | disconnected the thin part in the thin part. Thereby, the filter part large 61a and the filter part small 61b can be separated without using a cutter or the like. Moreover, the aspect which provides the protrusion, nail | claw, etc. which connect the filter part large 61a and the filter part small 61b to the filter part large 61a and the filter part small 61b may be sufficient. Further, the filter 61A may be continuously provided, and the filter 61A may be cut together when the frame portion 61B is cut.

[Effect of indoor unit 1D of the air-conditioning apparatus according to Embodiment 4]
The indoor unit 1D of the air conditioning apparatus according to Embodiment 4 has the following effects in addition to the effects of the indoor unit 1 of the air conditioning apparatus according to Embodiment 1.
Since the indoor unit 1D of the air conditioner according to Embodiment 4 is configured such that the suction area of the lower surface suction port 72 is larger than the first lateral side suction port 71, the first lateral side suction The substantial suction area of the port 71 and the lower surface suction port 72 can be made comparable.

  Moreover, the indoor unit 1D of the air conditioning apparatus according to Embodiment 4 suppresses an increase in sound when air is sucked into the lower surface suction port 72, and suppresses the deterioration of the user's comfort. it can.

  Moreover, since the indoor unit 1D of the air conditioning apparatus according to Embodiment 4 is configured to be able to separate the filter unit 61, the filter for the first lateral side suction port 71 and the lower surface suction port 72 are used. It is not necessary to prepare separate filters.

Embodiment 5. FIG.
FIG. 18 is a perspective view when the first lateral side suction port 71 of the indoor unit 1E of the air-conditioning apparatus according to Embodiment 5 is closed by the dummy filter 102 to have a lower suction specification. FIG. 19 is a perspective view when the lower surface suction port 72 of the indoor unit 1E of the air-conditioning apparatus according to Embodiment 5 is closed with a dummy filter 102 to obtain a lateral suction specification. In the description of the fifth embodiment, the same reference numerals are given to the portions common to the first to fourth embodiments, and differences will mainly be described.

In the fifth embodiment, the dummy filter 102 is used as an alternative function of the cover plate 14 fixed to the indoor unit 1 with, for example, screws.
The dummy filter 102 is used to block the first lateral side suction port 71 and the lower surface suction port 72. The dummy filter 102 has the same shape as the filter portion 61, and the filter 61A portion, that is, the filter material portion, is a thin resin film. As a result, the dummy filter 102 can be inserted into the filter section rail 17 and fixed to the indoor unit 1 in the same manner as the filter section 61. That is, by adopting the dummy filter 102 instead of the cover plate 14, the lower suction specification and the side suction specification can be changed without using a tool such as a screwdriver for removing the screw.

However, in the fifth embodiment, when a rail-type mechanism (filter part rail 17) is used as a holding mechanism for the filter part 61 and the dummy filter 102, the filter part rail 17 for the lower surface inlet 72 and the first part Both the filter section rails 17 for the lateral side suction ports 71 are necessary. That is, in Embodiment 1, since the cover plate 14 was used, the filter section rail 17 could be attached to the lower surface suction port 72 or the first lateral side surface suction port 71. However, in the fifth embodiment, one of the lower surface suction port 72 is attached to the filter unit 61 and the dummy filter 102, and the other is attached to the first lateral side suction port 71. Both the filter part rail 17 for 72 and the filter part rail 17 for the 1st side surface suction inlet 71 are required.
In the fifth embodiment, when the filter unit 61 and the dummy filter 102 are provided with a hook structure such as a claw as the holding mechanism for the filter unit 61 and the dummy filter 102, the holding mechanism for the lower surface inlet 72 and the first It is not necessary to install both the holding mechanisms for the lateral side suction port 71 in the main body 1A of the indoor unit 1. Such a holding structure can be realized, for example, by providing claws that are hooked to the main body 1A at both ends of the filter unit 61 and the dummy filter 102 in the short direction.
The rail-type mechanism and a hook structure such as a claw may be used in combination. For example, the filter section rail 17 is provided in the first lateral side suction port 71, and the filter section 61 and the dummy filter 102 are attached to the filter section rail 17. And about the other lower surface inlet 72, a nail | claw may be formed in the filter part 61 and the dummy filter 102, and what is necessary is just to make it hook on the main body 1A.

  The dummy filter 102 may be a separate mold from the filter unit 61. However, when the number of produced units is not large, either the cavity side or the core side is shared, or a part of the dummy filter 102 has a slide structure. Therefore, the mold cost can be reduced.

[Effect of indoor unit 1E of the air-conditioning apparatus according to Embodiment 5]
The indoor unit 1E of the air conditioner according to Embodiment 5 has the following effects in addition to the effects of the indoor unit 1 of the air conditioner according to Embodiment 1.
The indoor unit 1E of the air-conditioning apparatus according to Embodiment 5 has a dummy filter 102 instead of the cover plate 14. Thereby, a lower suction specification and a side suction specification can be changed without using tools, such as a driver.

  Also, if the filter unit 61 and the dummy filter 102 are not incorporated into the indoor unit 1 at the time of shipment of the indoor unit 1E and are packaged as an accessory together with instructions, etc., there is no need to distinguish between the horizontal suction specification and the lower suction specification at the time of shipment. In any case, the installation time can be reduced.

  DESCRIPTION OF SYMBOLS 1 Indoor unit, 1A main body, 1B indoor unit, 1C indoor unit, 1D indoor unit, 1E indoor unit, 2 Heat exchanger room, 3 Blower room, 11 Upper panel, 11A Recessed part, 12 Panel, 14 Cover plate, 15 Cover plate Large, 16 Small cover plate, 17 Filter section rail, 18 Second lateral filter section rail, 19 Filter guide, 20 Cover plate, 31 Ceiling inlet, 32 Ceiling outlet, 33 Ceiling, 41 Blower, 42 Fan case, 42a portion, 51 indoor heat exchanger, 52 drain pan, 53 suspension fitting, 54 control box, 61 filter section, 61A filter, 61B frame section, 61B1 long frame, 61B2 short frame, 61a large filter section, 61b small filter section , 61c Reinforcing rib, 61d Thin part, 62 Lateral filter part, 65 Coupling part, 71 First lateral side Inlet, 72 lower inlet, 73 upper inlet, 74 outlet, 75 second lateral inlet, 76 knockout hole, 81 building housing, 102 dummy filter, A1 first lateral, A2 second lateral Side surface, A3 3rd lateral surface, A4 4th lateral surface, B1 upper surface, B2 lower surface, S space.

Claims (8)

A main body in which a lower surface suction port is formed on a lower surface and a first lateral surface suction port is formed on a first lateral surface, and a blocking plate that blocks one of the lower surface suction port and the first lateral surface suction port. In the indoor unit of an air conditioner that opens the other of the lower surface suction port and the first lateral side surface suction port and takes air into the main body,
A filter unit that can be attached to any one of the lower surface suction port and the first lateral side surface suction port and is attached to the open side;
A linear filter portion rail that is detachably provided on the first lateral surface and the lower surface, and holds the filter portion;
A filter portion guide provided on an upper edge portion of the first lateral side surface where the first lateral side suction port is formed, and a contact surface with the filter portion is inclined;
On the upper surface of the main body,
An upper surface suction port for taking air into the main body together with the first lateral side surface suction port is formed,
When the cover plate closes the lower surface suction port and the first lateral side surface suction port is opened,
The filter rail is provided on the first lateral side surface in parallel to the direction from the lower surface to the upper surface,
The filter portion is provided in the first lateral side suction port and the upper surface suction port,
An indoor unit of an air conditioner, wherein a portion of the filter unit above the upper end of the filter unit rail is curved in contact with the contact surface of the filter unit guide. The filter unit is
The indoor unit of an air conditioner according to claim 1 , wherein the indoor unit of the air conditioner according to claim 1 , wherein the indoor unit is provided in any of the lower surface suction port, the first lateral side surface suction port, and the upper surface suction port by changing the shape. The upper surface inlet is
The indoor unit for an air conditioner according to claim 1 , wherein the indoor unit is formed on the first lateral surface side of the upper surface of the main body. When the cover plate closes the first lateral side suction port and the lower surface suction port is open,
The filter part rail is
The indoor unit of the air conditioning apparatus according to claim 1 , wherein the indoor unit is attached to the lower surface suction port. The cover plate is
An indoor unit of an air conditioning apparatus according to claim 1, characterized in that it is constituted by the dummy filter unit attached to the filter section rail. The filter unit is
A filter and a frame for holding the filter;
The frame is
A longitudinal frame formed in parallel with the longitudinal direction of the first lateral side surface suction port or the lower surface suction port, and a short frame formed in parallel with the lateral direction of the first lateral side surface suction port or the lower surface suction port. A hand frame, and a plurality of the long frames and a plurality of the short frames are connected so as to intersect,
The short frame is
The air conditioner according to any one of claims 1 to 5 , wherein a portion between the adjacent crossing portions is formed thinner than a crossing portion with the longitudinal frame. Indoor unit. In the longitudinal frame,
The indoor unit of the air conditioner according to claim 6 , wherein a reinforcing rib is formed so as to extend in a longitudinal direction of the filter. The filter unit is
Having a first filter part and a second filter part divided;
The first filter unit and the second filter unit are:
There are provided a plurality of connecting portions for connecting the end portion side of the first filter portion and the end portion side of the second filter portion facing the end portion side of the first filter portion. an indoor unit of an air conditioning apparatus according to any one of claims 1 to 7, characterized.

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