JPH06313577A - Air-conditioner - Google Patents

Abstract

PURPOSE:To provide an air-conditioner having a vertical bar which is composed so as to prevent deformation at the time when a suction grille is molded and to be used also as a guide rail for filters. CONSTITUTION:Indoor heat-exchangers 13a, 13b are placed in a unit main body 1, indoor fans 14a, 14b are respectively arranged facing these heat-exchangers, an inlet 4 and outlets 5a, 5b are provided on the side wall surface of the main body, and the inlet is provided in a suction grille G. Reinforcements each are provided along the both side part at the inside of the suction grille, a vertical bar extended inside is provided at the almost central part of the suction grille, and filters 11 are set by the guide of the reinforcements and the vertical bar.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner.

[0002]

2. Description of the Related Art Recently, there has been known an air conditioner which copes with the tendency of a large living room in a room to ensure a good temperature distribution in the room by blowing in two directions. In this type of air conditioner, two indoor heat exchangers are provided in an indoor unit mounted on the ceiling, and two indoor blowers are arranged so as to face the indoor heat exchangers.

Each indoor blower takes in the air in the air-conditioned room from one air inlet provided on the lower surface of the unit body into the unit body, and then connects the indoor heat exchangers facing each other to the outlet side. The air outlets are respectively provided to the air-conditioned room to guide the air out.

[0004]

By the way, the suction opening is formed in a suction grill which is a separate component from the unit main body, and the suction grill is pivotally supported by a grill support provided in the unit main body. Also, a filter is detachably attached to the suction grill to remove dust contained in the suction air.

The suction grille is made of a synthetic resin material and is processed and molded by means such as injection molding. The structure is composed of horizontal rails arranged side by side with a relatively small spacing, and vertical rails provided in a direction orthogonal to these horizontal rails and having a large mutual spacing.

[0006] A suction grill usually has an extremely large ratio between the lateral and longitudinal dimensions. When the area of the grill is large, a reinforcing material is attached if necessary, but the crosspiece in the longitudinal direction is still easily deformed at the time of molding, and after completion, warping was forced by using a jig. Therefore, it is troublesome and troublesome work is required.

There is also a problem with the structure in which the suction grill is pivotally supported on the grill support provided on the unit body. That is, the grill support is located on either the left or right side of the suction grill pivot support, depending on the mounting position. Therefore, it is necessary to prepare two types of grill supporting tools having symmetrical pivotal support parts and select and arrange them. After all, it requires time and effort for production, and attention must be paid to mounting on the unit body.

On the other hand, when the cooling operation is performed, dew is easily attached to the peripheral wall of the air outlet. As it is, the dew gradually grows larger and eventually falls. That is, since comfortable air conditioning is impaired, some kind of fall prevention means is required.

Conventionally, a sheet-shaped flocked body is attached along the peripheral surface of the blowout port to prevent dew condensation. As for the attachment means, one side of the double-faced tape is attached to the back side of the flocked body, and this is attached to the peripheral surface of the blowout port, so that a troublesome work is required here as well. Also, when the water-collecting effect of the flocked body decreases due to changes over time. It is necessary to replace the flocked body, but when it is attached with double-sided tape, it cannot be easily peeled off and the replacement work becomes troublesome, and if it is not removed properly, the attachment reliability of the new flocked body will decrease. It will be.

The present invention has been made in view of the above circumstances, and a first object of the present invention is to adopt a structure for preventing warp deformation at the time of molding of a suction grill to improve the mounting workability and appearance. The present invention aims to provide an improved air conditioner.

A second object of the present invention is to improve the support structure of the suction grill to the main body of the air conditioner to provide an air conditioner with improved workability in mounting.

A third object of the present invention is to provide an air conditioner which simplifies the structure for mounting the dew condensation preventive member on the peripheral surface of the air outlet to facilitate the attachment and detachment thereof and to improve the mounting reliability. It is a thing.

[0013]

In the air conditioner of the first invention, a heat exchanger and a blower are arranged to face each other in an air conditioner main body, and a suction port and a suction port are provided on a side wall surface of the air conditioner main body. The air-conditioning unit is equipped with a suction grill having the above-mentioned suction port, and a reinforcing member is provided along both sides on the inside of the suction grill. A vertical bar is extended, and the reinforcing member and the vertical bar guide the filter attached to the suction grill.

In the air conditioner of the second aspect of the present invention, the heat exchanger and the air blower are arranged to face each other in the main body of the air conditioner, and the inlet and outlet are provided on the side wall surface of the main body of the air conditioner. A suction grill equipped with the above-mentioned suction port is attached to the air conditioner main body, a shaft hole is provided in this suction grill, and a shaft portion is projectingly provided on both sides of the grill support so that either one of the shafts is provided. Part is selected and inserted through the shaft hole, and the suction grill is pivotally supported with respect to the air conditioner body.

In the air conditioner of the third aspect of the present invention, the heat exchanger and the blower are arranged to face each other in the air conditioner main body, and the side wall surface of the air conditioner main body is provided with the suction port and the air outlet. And a hooking portion protruding from the periphery of the blowout port, provided with a hooking portion that is detachably hooked to the hooking portion, and a flocked portion that is superposed along the peripheral surface of the blowout port. .

[0016]

In the first aspect of the invention, the reinforcing member is provided along both sides of the inside of the suction grill, and the vertical crosspiece provided at the substantially central portion of the suction grill is extended to the inside. There is no.

The filter is guided along the reinforcing member and the vertical rail and is detachably attached to the suction grill. Since the suction grill is not deformed, it can be attached and removed smoothly. In the second aspect of the invention, one of the shaft portions of the grill support is selected and inserted into the shaft hole provided in the suction grill, and the suction grill is pivotally supported on the air conditioner body. Only one type of tool is needed, and you don't have to worry about attaching it to the main body.

According to the third aspect of the invention, since the hooking portion of the dew condensation preventing body provided with the hair-implanted portion is detachably hooked on the hooking portion projecting at the peripheral edge of the outlet, it is affected by the change over time. Without dew on the outer surface of the outlet.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The exterior configuration of the indoor unit of the air conditioner is as shown in FIG. In the figure, 1 is a unit main body which is an air conditioner main body, and is vertically installed via a suspending tool 2. The lower surface side serves as a ceiling panel portion 3, which is exposed from a ceiling not shown here. That is, the unit body 1 is mounted in the ceiling in a buried state.

The ceiling panel 3 has the same surface as the ceiling, a suction port 4 is provided in the center except both sides, and blowout ports 5a and 5b are provided on both sides. The suction port 4 is provided in a suction grill G described later, and the grill is detachable from the ceiling panel section 3. The outlets 5a and 5b are directed in different outlet directions.

A refrigerant pipe P is connected to one side of the unit main body 1, and a drain pipe 6 is connected in the vicinity thereof. A connector cover 7 for accommodating a terminal portion (not shown) is provided on this side surface.

The unit body 1 has a schematic structure as shown in FIG. A heat insulating material 8 is provided along the inner peripheral surface of the unit body 1, and a space chamber 9 inside the heat insulating material 8 is provided.
Is divided into two left and right by the partition plate 10 in the standing position. Filters 11, 11 are inserted into the suction port 4 provided in the suction grill G. The outlets 5a and 5b are
Wind direction grill 20 that can adjust the blowing direction within a predetermined range,
Equipped with 20.

In the unit main body 1, two indoor heat exchangers 13a and 13b and indoor blowers 14a and 14b are arranged on the left and right sides of the partition plate 10 so as to face each other. Noses 15a and 15b are provided between the indoor blowers 14a and 14b and the outlets 5a and 5b.

Therefore, in the unit main body 1, 2 from the suction port 4 which is divided in half to the respective air outlets 5a and 5b.
Ventilation paths 16a and 16b of the system are formed. The respective ventilation passages 16a, 16b take in the heat exchange air of the room R to be air-conditioned under the ceiling 17 from the suction port 4 into the main body 1 to bring the indoor heat exchangers 13a, 13b into conduction, and the indoor blowers 14a, 1b.
Nose 15a, 15b between 4b and outlets 5a, 5b
Guided by the air outlets 5a and 5b, the air-conditioned room R is again guided.
It is a guide to blow out.

Here, the heat exchange air blown from one of the outlets 5a is directed to the zone A of the room R to be conditioned. The heat exchange air blown from the other outlet 5b is directed toward the zone B of the room R to be conditioned.

FIG. 3 is an exploded view of the components of the ceiling panel section 3. Reference numeral 18 denotes a rectangular frame-shaped panel body. In the figure, the back side (because it is a ceiling-embedded air conditioner, it is the top side) is shown, and the front side is not shown here. The air outlets 5a and 5b, which are a pair of elongated rectangular openings, are provided in a portion of the panel body 18 along the longitudinal direction.

A pair of wind direction grill mounting portions 19, 19 are provided apart from each other at each of the air outlets 5a, 5b, and pivotally supports a wind direction grill 20 and a blade plate 21 shown in the central portion of the drawing. . Shafts 20a, 20a are integrally provided on both sides of the wind direction grill 20, and bushings 22 to be described later, which are fitted to the opening side end of the panel body 18, are fitted therein.

FIG. 8 is an enlarged view showing the pivotal support structure of the bushing 22 with respect to the wind direction grill 20. The bushing 22 is provided in order to prevent an abnormal noise such as a squeaking noise from occurring when the wind direction grill 20 is rotated.
It is fitted into a mounting hole 23 provided on the side wall of the air outlets 5a and 5b. A bearing hole 24 is provided along the axis, and the shaft portion 20a of the wind direction grill 20 is rotatably inserted therein.

If the bushing 22 is simply fitted into the mounting hole 23, there is a risk that it will fall off from the panel body 18 during operation of the grill 20 or during transportation of the product, which is unreliable.

Therefore, as shown in FIG. 9 (A), the bushing 22 is integrally provided with a projection 22a on the panel body insertion side, a fitting portion with a recess 22b, and a flange portion 22c at the end on the wind direction grill side. Make a stop. It is possible to reliably prevent the bushing 22 from falling off during both the turning operation and the transportation.

In FIG. 9A, the protrusion 22a is provided along the entire circumference of the bushing 22. However, as shown in FIGS. 9B and 9C, the protrusion 22a is symmetrical with respect to the axis. It may be divided projections 22d and 22d. In this case, if the mounting hole on the panel body 18 side is also provided in conformity with the shape of the protrusion, a further retaining effect can be obtained.

As shown in FIG. 10, dew condensation preventives 25 are provided on both sides in the longitudinal direction of the air outlets 5a and 5b. The surface of the dew-prevention body 25 is flocked, and the air that has undergone heat exchange in the unit body 1 comes into contact with the dew-prevention body and is blown out from the outlet.

The mounting structure of the dew condensation preventing body 25 to the panel body 18 is detailed in FIG. That is, the outlet 5
Engagement portions 26 are integrally provided on the peripheral surfaces of a and 5b. The engaging portion 26 may be formed in a horizontal T-shape in cross section, and may be provided at a plurality of positions at predetermined intervals. A die-cutting hole 27 is provided on the lower side of the drawing, which is convenient for die-cutting when molding the engaging portion 26.

The dew-preventing body 25 has a cross-section formed in a substantially U-shape, and its outer peripheral surface serves as a hair-implanted portion 25a. On the back surface side of the vertical piece, a hooking portion 25b having a horizontal T-shaped cross section is integrally provided.

When attaching the dew condensation preventing body 25 to the panel body 18, the short piece portion is inserted into the upper portion of the engaging portion 26, and the lower portion of the engaging portion 25b is inserted into the lower portion of the engaging portion 26. These operations can be easily performed by utilizing the elasticity of the preventive body 25. As a result, the retaining portion 25 provided on the prevention body 25
Since the engaging portion 26 of the panel body 18 is held by b, the preventive body can be securely attached.

Compared to the conventional attachment means using tape on both sides, there is no change with time even after long-term use.
Prevents dew condensation around the outlets 5a and 5b. As shown in FIG. 3 again, on the rear surface side of the panel body 18, the outlets 5a, 5
The panel reinforcing member 2 having an L-shaped cross section is provided between b and the end edge of the main body.
8 are screwed to reinforce the panel body 18.

The wind direction grill motors 29 are respectively provided on the support body 3 on the lower right side and the upper side of the panel body 18 in the figure.
It is attached via 0. The blade plate 21 described above is mechanically connected to the rotary shaft of the motor 29, and rotates left and right as the motor is driven.

A lower end portion of a panel hanging string 31 which is suspended from a unit body (not shown) is hooked on the left and right side portions. Even when the ceiling panel section 3 is removed from the unit body 1, the panel section 3 is still attached to the hanging strings 31, 31.
Suspended by, it can prevent natural fall.

The suction grill G is arranged at the suction port 4 which is the central opening of the panel body 18. That is, a plurality of grill support members 34, which will be described later, are provided on the periphery of the opening, and are supported by these.

The suction grill G has a horizontally long rectangular outer peripheral frame 35.
, A plurality of horizontal bars 36 are arranged side by side with a relatively narrow interval, and a plurality of vertical bars 37 are integrally molded with a relatively wide interval in a direction orthogonal to this. Reinforcing members 38 are screwed to both sides of the outer peripheral frame parallel to the vertical rail 37,
Reinforces the suction grill G.

Particularly, the vertical bar 37a at the center and the reinforcing members 38 on both sides guide the pair of filters 11, 11 to attach them to the grill G. As shown in FIG. 4A, in particular, the vertical bar 37 a at the central portion extends inward from the edge of the horizontal bar 36. In other words, the other vertical rails 37 except the central vertical rail 37a have the same width dimension as the horizontal rail 36.

In this way, by extending the central vertical bar 37a inward, when the suction grill G is formed, the warp that is likely to occur due to the difference in heat balance between the respective parts is corrected, and the appearance deformation is prevented. .

As shown in FIG. 3B, the reinforcing members 38, 38 attached to both side portions of the grill G project inward by substantially the same size as the central vertical rail 37a. Therefore, when mounting the pair of filters 11, 11 on the suction grill G,
The reinforcing members 38, 38 and the central vertical rail 37a form a guide. In particular, it is not necessary to attach a separate member that serves as a guideline for the filter 11, and this attachment position can be easily set.

As shown in FIGS. 5 and 6, the grill supporting member 34 includes a fixing piece portion 34a screwed to the panel body 18 and a supporting arm 34b protruding toward the suction grill G side.
And a pair of shaft portions 34c, 34c provided on the support arm
And are integrally molded. These shaft portions 34c, 34c
Are projected on both sides of the support arm with their axes aligned.

Then, the grill support member 34 is attached to the suction grill G.
Either one of the left and right shaft portions 34c is selected and locked. The shaft portion 34c on the other side is used depending on the mounting position of the grill support tool 34.

In other words, by preparing the common grill support 34, the suction grill G can be pivotally supported without being affected by the mounting position. FIG. 11 shows a refrigerant flow path configuration in the indoor heat exchangers 13a and 13b. That is, two rows of the refrigerant passages 40a and 40b are arranged in parallel in each of the indoor heat exchangers 13a and 13b. Here, because of the relationship with the blower (not shown), the respective refrigerant flow paths 40a,
40b is divided into a windward side (inside) and a leeward side (outside).

An inlet side refrigerant pipe P is connected to one end of the refrigerant passage 40a on the windward side, and an outlet side refrigerant pipe P is connected to the end of the other refrigerant passage 40b. The air conditioner described here constitutes a heat pump type refrigeration cycle as will be described later, and therefore, the conduction direction of the refrigerant flowing through the refrigerant pipe P changes in the opposite direction. In any case, an independent refrigerant flow path is formed in each indoor heat exchanger 13a, 13b.

Heat exchanger sensors 41a and 41b are attached to the leeward sides of the indoor heat exchangers 13a and 13b, respectively. FIG. 12 is a configuration of a refrigeration cycle circuit and a control circuit of an air conditioner including such an indoor unit.

The discharge part of the compressor 43 is connected to the outdoor heat exchanger 45 via the four-way valve 44. This outdoor heat exchanger 45
The refrigerant pipe P is branched into two directions from and is connected to the indoor heat exchangers 13a and 13b, which are divided into two via electric expansion valves 46a and 46b, respectively. These indoor heat exchangers 13
It is connected to the suction part of the compressor 43 from a and 13b via the four-way valve 44.

During the cooling operation, the compressed refrigerant is discharged from the compressor 43 and guided in the direction indicated by the solid line arrow in the figure to form a cooling cycle. At this time, the outdoor heat exchanger 45 acts as a condenser, and the indoor heat exchangers 13a and 13b act as evaporators.

During the heating operation, the compressed refrigerant is discharged from the compressor 43 and guided in the direction indicated by the broken line arrow in the figure to form a heating cycle. At this time, the outdoor heat exchanger 45 acts as an evaporator, and the indoor heat exchangers 13a and 13b act as condensers.

Reference numeral 50 is a control unit, which is composed of a microcomputer and its peripheral circuits. The control unit 50 is connected to a commercial AC power source 52 via a step-down transformer 51.

The control section 50 is provided with the electric expansion valves 46a, 4a.
6b, heat exchanger temperature sensors 41a, 41b, four-way valve 4
4, an outdoor blower 53, an inverter circuit 54, tap switching circuits 55a and 55b, an indoor temperature sensor 56, and a remote control type operation operator (hereinafter abbreviated as a remote controller) 57 are connected.

The inverter circuit 54 rectifies the voltage of the power supply 52, converts it into an alternating current having a frequency (and voltage) according to a command from the control unit 50, and outputs it. This output serves as a drive power source for the motor of the compressor 43.

The tap switching circuits 55a and 55b switch energization from the power source 52 to each speed tap in the fan motors 14aM and 14bM of the indoor blowers 14a and 14b.

The remote controller 57 has zone selection buttons 57a and 57b for selecting one of the local control modes of the zone A and the zone B, in addition to the function of setting the operating condition.

The control unit 50 has the following functional means. (1) The four-way valve 44 for the refrigerant discharged from the compressor 43, the outdoor heat exchanger 45, the electric expansion valves 46a and 46b, the indoor heat exchanger 13
Means for returning to the compressor 43 through a, 13b and the four-way valve 44 to execute the cooling operation.

(2) The refrigerant discharged from the compressor 43 is supplied to the four-way valve 4
4, indoor heat exchangers 13a, 13b, electric expansion valve 46a,
Means for returning to the compressor 43 through 46b, the outdoor heat exchanger 45, and the four-way valve 44 to execute heating operation.

(3) During operation, the detected temperature (indoor temperature) Ta of the indoor temperature sensor 56 and the set temperature Ts of the remote controller 57.
A means for controlling the output frequency of the inverter circuit 54 (the operating frequency of the compressor) according to the difference between

(4) Zone selection button 57 of remote controller 57
In the normal control mode in which neither a nor 57b is operated, means for setting the air volumes of the indoor blowers 14a and 14b to the same value (three levels of strong, weak, and slight) according to the operation of the remote controller 57.

(5) One of the local control modes of the zones A and B is selected in response to the operation of the zone selection buttons 57a and 57b, and the indoor blowers 14a and 1 are selected accordingly.
Means for changing the air flow rate of 4b.

(6) The operation of the indoor blowers 14a, 14b and the wind direction grill motors 29, 29 is controlled in order to independently control the air volume, the air velocity and the air direction of the heat exchange air blown out from the respective air outlets 5a, 5b. means.

(7) The throttle amounts of the electric expansion valves 46a and 46b are independently controlled to change the amount of refrigerant introduced to the indoor heat exchangers 13a and 13b, so that the temperature of the heat exchanger serving as the evaporator is adjusted. A means for controlling the amount of change in the temperature difference from the compressor suction temperature (superheat amount, undercool amount) to an appropriate value.

Next, the operation of the above configuration will be described. In the normal control mode in which neither the zone selection buttons 57a, 57b of the remote controller 57 are operated, the indoor blowers 14a, 14b
The air volume of a is the same value (strong, weak,
Fine) is set in three stages.

That is, when the air volume "strong" is set by the remote controller 57, the tap switching circuits 55a, 55b energize the high speed taps of the indoor blower fan motors 14aM, 14bM. As a result, the indoor blower 14
The a and 14b rotate at a high speed, and a large amount of heat exchange air is blown to the zone A and the zone B of the air-conditioned room R.

When the air volume "weak" is set, the middle speed taps are energized and the indoor blowers 14a and 14b rotate at middle speeds. Also, when the air volume "fine" is set. The low speed taps are energized, and the indoor blowers 14a and 14b rotate at low speeds.

On the other hand, when either of the zone selection buttons 57a and 57b is pressed, the local control mode is entered and the air volume ratio of the indoor blowers 14a and 14b is changed. For example, when the zone selection button 57a is pressed, the local selection mode for the zone A is entered, the air volume of the indoor blower 14a is increased by α above the value according to the operation of the remote controller 57, and the air volumes of the remaining indoor blowers 14b are increased. It is reduced by β from the value according to the remote control operation.

That is, when the local control mode of the zone A is entered, if the air volume "strong" is set by the remote controller 57, the tap switching circuit 55a energizes the ultra high speed tap of the indoor blower fan motor 14aM. It As a result, the rotation speed of the indoor blower 14a changes from high speed to ultrahigh speed, and the air volume to the zone A increases.

Further, the tap switching circuit 55b energizes the indoor blower fan motor 14bM to the medium speed tap, whereby the rotation speed of the indoor blower 14b is reduced from high to medium, and the air volume to the zone B is reduced. .

During the cooling operation, the opening of the electric expansion valve 46a on the liquid side line of the opposing indoor heat exchanger 13a is normally set while the air volume of the one indoor blower 14a on the zone A side is increased. Open more than opening. Therefore, the temperature difference between the heat exchanger temperature and the suction temperature of the compressor is maintained at the same superheat amount as usual, thereby preventing the dew state at the outlet 5a.

At the same time, with the air volume of the other indoor blower 14b on the zone B side reduced, the indoor heat exchanger 13
The opening degree of the electric expansion valve 46b communicating with b is closed more than the normal opening degree. Therefore, the temperature difference between the heat exchanger temperature and the suction temperature of the compressor is maintained at the same superheat value as the normal value to prevent freezing of the indoor heat exchanger 13b and maintain the cooling capacity.

During the heating operation, the indoor blower 1 on the zone A side
In order to increase the air volume of 4a, the louver is opened and the number of rotations is increased, and the opening of the electric expansion valve 46a is opened beyond the normal opening to keep the temperature of the indoor heat exchanger 13a at the normal level. Prevents the blowing of cold air.

Further, in order to reduce the air volume on the zone B side, the louver is closed, the rotation speed of the indoor blower 14b is reduced, and the opening of the electric expansion valve 46b is closed below the normal opening to reduce the heat exchanger temperature. Hold normally, which prevents the transition to a hot release.

In this way, the electric expansion valves 46 of the respective air outlets 5a and 5b are selected in accordance with the required air volume, the wind speed, and the wind direction.
By adjusting the opening degrees of a and 46b, the optimum refrigerant flow rate is always controlled, and comfortable air conditioning is achieved.

In the above-described embodiment, the description has been made by applying to a so-called top-and-bottom type air conditioner mounted on the ceiling surface.
The present invention is not limited to this, and can be applied to a wall-mounted type having two indoor heat exchangers. Further, it goes without saying that various modifications can be made without departing from the scope of the present invention.

[0076]

As described above, according to the present invention, the reinforcing member is provided along both sides of the inside of the suction grill, and the vertical bar is extended to the inside at least at the substantially central portion. Since the filter is guided by the crosspiece, the warp deformation at the time of forming the suction grill is reliably prevented and the workability of the grill is improved, and the workability of attaching it to a predetermined part of the grill and the appearance are improved. There is an effect that can be achieved.

According to the second aspect of the invention, the suction grill is provided with a shaft hole, the shaft portions are projected on both sides of the grill support, and one of the shaft portions is selected and inserted into the shaft hole. Since the suction grill is pivotally supported with respect to the main body of the air conditioner, when supporting the suction grill to the main body, even if a plurality of support tools are arranged, the mounting work is performed by the shaft portions provided on both sides of the support tool. Therefore, it is possible to improve the efficiency and eliminate the need to provide different parts for each, and to obtain the effect of reducing the number of parts and the cost of parts.

According to the third aspect of the invention, the engaging portion is provided at the periphery of the air outlet provided in the air conditioner main body, and the engaging portion of the dew condensation preventing body is detachably engaged with the engaging portion, Moreover, since the flocked portions are overlapped with each other along the peripheral surface of the outlet, the workability of attaching the dew condensation preventive body to the peripheral surface of the outlet is improved, and the attachment reliability is improved without aging.

[Brief description of drawings]

FIG. 1 is a perspective view of an indoor unit of a ceiling-embedded air conditioner according to an embodiment of the present invention.

FIG. 2 is a schematic vertical cross-sectional view of the indoor unit of the embodiment.

FIG. 3 is an exploded perspective view of components of the ceiling panel portion of the embodiment.

FIG. 4A is a cross-sectional view of the suction grill in the lateral direction of the same embodiment. (B) is a longitudinal sectional view of the suction grille of the embodiment.

FIG. 5 is a view for explaining mounting details of the grill support tool according to the embodiment.

FIG. 6 is a perspective view of the grill support tool according to the embodiment.

FIG. 7 is a view for explaining the attachment structure of the dew condensation preventing body according to the embodiment.

FIG. 8 is a view for explaining the pivot structure of the wind direction grill of the embodiment.

FIG. 9A is a perspective view of a bushing of the embodiment.
FIG. 6B is a perspective view of a bushing according to another embodiment. (C)
[FIG. 6B] is a vertical cross-sectional view of the bushing shown in FIG.

FIG. 10 is a perspective view of the air outlet of the embodiment.

FIG. 11 is a diagram illustrating a refrigerant flow path of the indoor heat exchanger according to the embodiment.

FIG. 12 is a configuration diagram of a refrigeration cycle and a control circuit according to the same embodiment.

[Explanation of symbols]

13a, 13b ... Indoor heat exchanger, 1 ... Air conditioner body (unit body), 14a, 14b ... Indoor blower, 4 ...
Suction port, 5a, 5b ... Blowout port, G ... Suction grill, 38 ...
Reinforcement material, 37a ... Vertical bar, 11 ... Filter, 34c ... Shaft part, 34 ... Grill support, 26 ... Engagement part, 25b ... Engagement part, 25a ... Flocking part, 25 ... Dew prevention body.

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

Claims (3)

[Claims] 1. An air conditioner main body in which a heat exchanger is arranged, a blower which is arranged inside the air conditioner main body so as to face the heat exchanger, and circulates indoor air, and the air. Formed on the side wall surface of the main body of the air conditioner, with an inlet for guiding the heat exchange air to the heat exchanger when the blower is driven and an outlet for guiding the heat exchange air after heat exchange with the heat exchanger. In an air conditioner equipped with the above-mentioned suction port, a suction grill attached to the main body of the air conditioner, a reinforcing material provided along both sides inside the suction grill, and a substantially central portion of the suction grill. An air conditioner comprising: a vertical rail provided and extending inward; and a filter guided by the reinforcing member and the vertical rail and attached to the suction grill. 2. An air conditioner main body in which a heat exchanger is arranged, a blower which is arranged inside the air conditioner main body so as to face the heat exchanger, and which circulates indoor air, and the air. Formed on the side wall surface of the main body of the air conditioner, with an inlet for guiding the heat exchange air to the heat exchanger when the blower is driven and an outlet for guiding the heat exchange air after heat exchange with the heat exchanger. An air conditioner comprising: a suction grill equipped with the above-mentioned suction port, which is attached to the main body of the air conditioner; a shaft hole provided in this suction grill; and a shaft portion protruding from both sides thereof. An air conditioner comprising: one of the shaft portions selected and inserted into the shaft hole, and a grill supporter that pivotally supports the suction grill with respect to the air conditioner body. 3. An air conditioner main body in which a heat exchanger is arranged, a blower arranged inside the air conditioner main body so as to face the heat exchanger, and a blower for circulating indoor air, Formed on the side wall surface of the main body of the air conditioner, with an inlet for guiding the heat exchange air to the heat exchanger when the blower is driven and an outlet for guiding the heat exchange air after heat exchange with the heat exchanger. An air conditioner comprising: a hooking portion projecting from a peripheral edge of the air outlet, and a hooking portion removably hooked to the hooking portion, and being overlapped along a peripheral surface of the air outlet. An air conditioner, comprising: