JP3372133B2 - air conditioner - Google Patents

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 Conventionally, a filter unit case, a fan unit case, and a coil unit case are stacked in a state in which they communicate with each other from below, and untreated air taken into the filter unit case is discharged as conditioned air from the coil unit case. There is an air conditioner configured in.

As shown in FIGS. 11 and 12, the fan unit 100 in the fan unit case includes an electric motor 300 arranged in the fan case 200, and the motor 300.
The electric motor 300 is normally held by three supporting rods 500 each having one end fixed to the periphery of the fan intake port 210 of the fan case 200. ing.

[0004]

However, as described above, in the structure in which the electric motor 300 is held by the three support rods 500, one end of which is fixed to the peripheral edge of the fan intake port 210, the support rod 500 receives the fan intake air. Will block your mouth 210,
This acts as a resistance and hinders the smooth inflow of air into the fan intake port 210, thus reducing the blowing efficiency.

An object of the present invention is to provide an air conditioner capable of solving the above problems.

[0006]

According to the present invention, a filter unit case, a fan unit case, and a coil unit case are stacked in a state in which they communicate with each other from below, and untreated air taken into the filter unit case is discharged from the coil unit case. In an air conditioner configured to discharge as conditioned air, an electric motor and a fan that is rotationally driven in conjunction with the electric motor are arranged in the fan unit case, and are formed on the upstream side of the fan. A motor mounting plate for mounting the electric motor is arranged along the air flow in the intake passage, and the intake passage is divided into a left side passage and a right side passage by the motor mounting plate. The present invention relates to an air conditioner characterized by the above.

Further, according to the present invention, the filter unit case, the fan unit case, and the coil unit case are stacked in a state in which they communicate with each other from below, and the untreated air taken into the filter unit case is discharged as conditioned air from the coil unit case. In the air conditioner configured as described above, a plurality of fan unit installation spaces for accommodating a plurality of electric motors and a plurality of fans that are rotationally driven in conjunction with the motors are formed in the fan unit case. At the same time, by the flow path partition wall forming the fan unit installation space, the intake flow path formed on the upstream side of each fan is divided into a plurality of intake flow paths, and in each fan unit installation space, Install the motor mounting plates for mounting the electric motors so that they follow the air flow. Each intake passage is divided into a left air passage and a right air passage by a plate, and a virtual perpendicular line extending downward from the lower end of the passage partition wall or the motor mounting plate is formed in the filter unit case. It is also characterized in that the filter holder is arranged at a position along.

[0008]

[Operation] An air conditioner configured such that the filter unit case, the fan unit case, and the coil unit case are stacked in a state in which they communicate with each other from below, and the untreated air taken into the filter unit case is discharged as conditioned air from the coil unit case. In the machine, an electric motor and a fan that is rotatably driven in conjunction with the electric motor are provided in a fan unit case, and an air flow is formed in an intake passage formed on the upstream side of the fan. A motor mounting plate for mounting the electric motor is arranged so as to eliminate air resistance due to a supporting member of the electric motor, and the intake channel is divided into a left side channel and a right side channel by the motor mounting plate. By doing so, the air can be more smoothly introduced into the fan, and the blowing efficiency is improved.

Further, in the fan unit case, a plurality of fan unit installation spaces for accommodating a plurality of electric motors and a plurality of fans which are rotatably driven by interlocking with the respective motors are defined and formed. The flow path partition wall that forms the fan unit installation space divides the intake flow path formed on the upstream side of each fan into a plurality of intake flow paths, and at the same time, creates a flow of air in each fan unit installation space. A motor mounting plate for mounting the electric motor is arranged along each of them, and each intake passage is divided into a left air passage and a right air passage by the motor mounting plate. In, by disposing a filter retainer at a position along a virtual perpendicular extending downward from the lower end of the flow path partition wall or the motor mounting plate,
The flow passage resistance of the air flowing from the filter unit to the fan unit is reduced, and, as described above, the intake flow passage is partitioned so that the air can flow into the fan more smoothly, thus improving the air blowing efficiency of the fan. be able to.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a front view of an air conditioner according to the present invention, FIG. 2 is a side view of the same, and FIG. 3 is an explanatory view showing its internal structure. An air conditioner A has a filter unit case 1 and a fan from below. The unit case 2 and the coil unit case 3 are stacked.

Each of the unit cases 1, 2 and 3 is formed in a thin box shape having a detachable front panel 1a, 2a and 3a, and as shown in FIG. A filter unit 10, a fan unit 20, and a coil unit 30 are housed and arranged.

In FIG. 1, reference numerals 12 and 22 denote inspection doors, and an electrical component b is provided on the back surface of the inspection doors 12 and 22.

Further, communication openings are formed on the upper surface of the filter unit case 1, the upper and lower surfaces of the fan unit case 2 and the coil unit case 3, respectively, and they are connected in a stacked state.

Furthermore, each of the stacked unit cases 1, 2,
3. A vertically long suction case 4 is erected so as to abut one side surface of the suction unit 4, and an air supply port 41 of the suction case 4 and an intake port 11 formed on one side surface of the filter unit case 1 are connected to each other. . 42 is an intake port of the suction case 4.

The unit cases 1, 2 and 3 are provided with hooking means a having a positioning function provided on their respective side surfaces.
Are connected and held by each unit case.
Set up the angle struts 5 and 5 so as to abut the left and right corners of the 1, 2 and 3, and set the angle struts 5 and 5 to
3 and 3 are detachably connected with bolt 6 with knob.

That is, as shown in FIG. 4, the hooking means a
Is composed of a toggle-type connector 91 and a plug-in type positioning tool 92, and a connector body 91a is provided at the upper left and right side ends of each of the filter unit case 1 and the fan unit case 2.
And the positioning fitting piece 92a are arranged side by side, while the connector main body 91a and the positioning fitting piece are provided at the lower ends of the left and right side surfaces of the fan unit case 2 and the coil unit case 3, respectively.
A connecting hook 91b and a fitting piece receiving portion 92b, which respectively correspond to 92a, are arranged side by side.

Further, as shown in FIG. 1, an installation member 13 is arranged on the bottom surface of the filter unit case 1, and the filter unit case 1 is mounted on the floor surface of the installation place through the installation member 13 and bolts or the like. It is fixed at.

With the above structure, when the air conditioner A is installed, the positioning fitting piece 92 of the unit case 1 is mounted on the filter unit case 1 fixed at a predetermined installation location.
The fan unit case 2 is placed in a state in which a is securely fitted in the fitting piece receiving portion 92b of the fan unit case 2, and is fastened by the connector 91 as shown in FIG. This fastening operation can be performed with one touch.

Further, the coil unit case 3 is placed and connected on the fan unit case 2 in the above-described manner to hold the unit cases 1, 2, and 3 together.

After that, the angle columns 5 and 5 are brought into contact with the right and left corners on the back side of the unit cases 1, 2 and 3, and the unit cases 1, 2 and 3 and the angle columns 5 and 5 are attached by bolts 6 with knobs.
Fix and. In addition, the bolt holes that correspond to each other are previously provided on each unit case 1, 2, 3 and the angle columns 5, 5.
60 are drilled.

Then, the angle columns 5, 5 are fixed to the wall surface or the ceiling surface with fixing bolts or the like, and the assembly and installation of the air conditioner A is completed.

As described above, positioning of the unit cases 1, 2, and 3 is easy, and the connector 91 can be operated with one touch, and the unit cases 1, 2, and 3 can be angled. Since it can be fixed to the columns 5 and 5 manually, no tools are required, and assembly and installation can be performed very easily without any trouble. Therefore, the work efficiency is improved, and the labor burden on the worker can be significantly reduced.

Incidentally, it goes without saying that the air conditioner A can be easily disassembled in the same manner by performing the process reverse to the above work.

In this embodiment, the unit cases 1, 2,
Form a seal surface 71 for connecting the cases on the upper and lower edges of the unit 3 and project at least the front seal surface 71 of each unit case 1,2,3 to the outside of each unit case 1,2,3. Front panel between the sealing surfaces 71.
1a, 2a, 3a are detachably attached.

That is, as described above, the insides of the unit cases 1, 2, and 3 communicate with each other to form an air flow path, but it is necessary to seal the air so that the air does not leak from the stacked gaps. There is.

Therefore, as shown in FIG. 4, seal portions 7 for connecting the unit cases 1, 2, and 3 are formed at the upper and lower edges of the unit cases 1, 2, and 3.

The seal portion 7 is for each unit case 1, 2, 3
The angle-shaped seal part constituent material 70 is attached to the upper and lower front edges of the, and a surface bent and formed on the outside of the seal part constituent material 70,
A folding surface formed by bending the upper and lower ends of the rear wall and the left and right side walls inward is used as a sealing surface 71 for connecting the unit cases 1, 2 and 3 and packing is applied to the upper sealing surface 71 of the filter unit case 1 and the fan unit case 2. 8 is pasted.

As shown in FIG. 6, a heat insulating material 72 is attached to the inner surface of each unit case 1, 2, 3 and the inner surface of the detachable front panel 1a, 2a, 3a is similarly subjected. Insulation
72 is attached and fitted between the above-mentioned upper and lower seal part constituent materials 70.

Therefore, the inner side surface of each unit case 1, 2, 3 forming the air flow path is a flat surface, and the flow path resistance can be made as small as possible.

In particular, the inner surface of each unit case 1, 2, 3 becomes a flat surface because the sealing surface 71 of the seal member 70 is projected outside instead of inside.

Since the front panels 1a, 2a, 3a are located between the upper and lower seal part constituting materials 70, the outward protrusion of the seal surface 71 of the seal part constituting material 70 is not conspicuous, and the external appearance is improved. In terms of design, it does not spoil the aesthetics.

Further, in this embodiment, the front panel 1a of the filter unit case 1 can be attached / detached by one-touch using the fitting type fitting, so that the maintenance or the like is easy.

In the air conditioner A having the above structure, the gist of the present invention is to dispose the electric motor M and the fan F which is rotatably driven in conjunction with the motor M in the fan unit case 2. A motor mounting plate 24 for mounting the electric motor M is installed in the intake passage R formed on the upstream side of the fan F along the air flow. , The intake passage R is the left passage 25 and the right passage
It is in the structure of the fan unit 20 which is divided into 26 and.

In the fan unit case 2,
A plurality of fan unit arrangement spaces S for accommodating a plurality of electric motors M and a plurality of fans F which are rotatably driven in conjunction with the respective motors M are partitioned and formed, and the fan unit arrangement space S is formed. The flow passage partition wall 21 divides the intake flow passage R formed on the upstream side of each fan F into a plurality of intake flow passages R, and the flow passage partition wall 21 is provided in the filter unit case 1. Or motor mounting plate 24
Another feature is that the filter retainer 27 is arranged at a position along an imaginary perpendicular line extending downward from the lower end of the filter.

That is, as shown in FIGS. 1 and 7 to 9, the air conditioner A according to the present embodiment has two fan units 20 arranged side by side in the fan unit case 2, and therefore, A flow path partition wall 21 is provided in the fan unit case 2,
Two fan unit installation spaces S are formed by the same flow path partition wall 21.
To form a compartment. The left and right side walls of the fan unit case 2 also form the flow path partition wall 21.

In the fan unit 20, a fan case 23 is arranged side by side inside each of the fan unit disposition spaces S, and an electric motor M and a drive shaft of the motor M are provided in the fan case 23.
A fan F, which is rotatably driven in conjunction with M1, is provided. Further, the fan F in this embodiment rotates counterclockwise.

A turbo fan F is used as the fan F. The turbo fan F is thinner than a sirocco fan generally used in air conditioners when compared with the same air volume, so that the fan unit case 2 itself is thin. It is possible to form

Therefore, the filter unit case 1
By similarly making the coil unit case 3 thin, the air conditioner A can be made extremely thin.

An intake passage R is formed on the upstream side of each fan case 23, and a fan inlet F1 is formed on the front surface of the fan case 23 so as to face the intake passage R. There is. Air flows in from the fan intake port F1 and is forcedly fed from above the fan unit 20 (see FIGS. 8 and 1).
0).

An electric motor M is attached to and supported by a motor attachment plate 24 attached to the front surface of the fan case 23 so as to define the intake passage R. 24c is the motor mounting plate
Mounting bolts for mounting 24 to the fan case 23.

That is, as shown in FIG. 9, the motor mounting plate 24 is formed by cutting out the upper left side surface and the lower right side surface of the mounting plate body made of a metal plate having a U-shaped cross section, and leaving the remaining lower left side surface and upper right side surface. The surfaces are formed as left and right motor mounting ear portions 24a and 24b, and the electric motor M is supported by the left and right motor mounting ear portions 24a and 24b so as to be sandwiched from the left and right. M2 is a motor mounting bolt.

The left and right motor mounting left and right ears 24a, 24b are walls that partition the flow path of the intake flow path R, and are also partition walls that are perpendicular to the fan intake port F1 (FIG. 8). reference).

Further, as shown in FIG. 10, the left ear portion 24a extends downward from the left side portion of the electric motor M, and the right ear portion 24b extends upward from the right side portion of the electric motor M.

Therefore, the intake passage R is divided into the left passage 25 and the right passage 26, and in the lower region of the electric motor M, the left passage 25 is narrowed by the width of the electric motor M and the right passage Road
26 is wide.

With this structure, the air from below enters the fan suction port F1 through the two flow paths.

As described above, when the turbofan F is counterclockwise, the intake passage R should be divided into a narrow left passage 25 and a wide right passage 26 in the lower region of the electric motor M as described above. However, it has been confirmed by experiments that the intake efficiency of the turbofan F is improved by adopting such a configuration.

With such a structure, as described above, it is possible to obtain a desired air volume even when the fan unit case 2 is made thin by using the turbo fan F which is thinner than the sirocco fan or the like, and by extension, the air conditioner. The entire A can be made compact.

In this embodiment, as shown in FIG.
A filter retainer 27 is provided on the front panel 1a of the filter unit case 1 along an imaginary perpendicular line extending downward from the lower end of the flow path partition wall 21 described above.

That is, as shown in FIG. 3, in the thin filter unit case 1, the filter unit 10 is arranged in a rearward inclined state so that dust can be efficiently collected. A filter retainer 27 is provided for stability.

The filter unit 10 is, for example, 2
It is configured by arranging multiple divided filters in parallel,
By providing the filter retainer 27 at the above-mentioned position, the filter retainer 27 can be brought into contact with the connecting portion of the filter unit 10, so that the filter function is impaired and the air resistance becomes an air resistance to improve the ventilation efficiency of the fan F. There is no lowering.

Moreover, the intake passages R, which are partitioned and formed on the upstream side of each fan case 23, are extended into the fan unit case 1 as well, so that the blowing efficiency of the fan F can be improved. Is.

The position of the filter retainer 27 may be a position along a virtual perpendicular extending downward from the lower end of the motor mounting left ear portion 24a of the motor mounting plate 24.

By the way, in the present embodiment, a fan case in which the turbofan F and the electric motor M are housed and arranged.
Vibration-proof structure is applied to 23.

That is, the vibration isolator 28 is provided between the lower part of the fan case 23 and the bottom wall 2b of the fan unit case 2 to support the fan case 23, and
The upper end of 23 is connected and supported to the ceiling side of the fan unit case 2 via a sponge-like packing 29.

As shown in FIG. 7, the fan case 23 is provided with a vibration isolator installation space Q having a triangular shape in a front view by dropping the left and right lower corners thereof, and the vibration isolation is provided in the space Q. A device 28 is provided.

In the vibration isolator 28, a bracket 33 is attached to the wall of the fan case 23, which is the upper side of the vibration isolator installation space Q, so as to project into the vibration isolator installation space Q.
28a standing on the bottom wall 2b of the fan unit case 2
And a spring 28b is interposed between the bracket 33 and the bottom wall 2b.

Therefore, the fan case 23 is attached to the vibration isolation device 28.
The spring 28b supports the weight.

Further, since the sponge-like packing 29 which does not require a particular thickness in the height direction is arranged on the upper end of the fan case 23, the vibration isolator 28 is provided on the bottom surface of the fan case 23 and the upper end is formed on the upper end. The vertical height can be made significantly smaller than that of a commonly used ordinary vibration isolation structure in which flexible joints are connected.

As described above, the fan case 23 has the vibration isolator installation space Q formed by dropping the corners of the fan case 23.
Anti-vibration device 28 installed inside and thin sponge packing 29
Since the fan unit case 2 is suspended in a relatively small space via the, the transmission of vibration can be sufficiently suppressed even if the fan unit case 2 is downsized.

Moreover, as described above, the turbofan F
The fan case unit 2 has a thin structure due to the adoption of the air intake flow path, and the height direction and the front-back direction can be made compact, and the air conditioner A can be made compact as a whole. can do.

[0061]

EFFECTS OF THE INVENTION A filter unit case, a fan unit case, and a coil unit case are stacked from the bottom in a state of communicating with each other, and untreated air taken into the filter unit case is discharged as conditioned air from the coil unit case. In the above air conditioner, an electric motor and a fan that is rotationally driven by being interlocked with the electric motor are arranged in the fan unit case, and an air flow is formed in an intake passage formed on the upstream side of the fan. A motor mounting plate for mounting the electric motor is disposed along the flow of the electric motor, and the motor mounting plate divides the intake flow passage into a left flow passage and a right flow passage, thereby supporting the electric motor. By eliminating the flow path resistance due to the members and by partitioning the intake flow path, the air can flow into the fan more smoothly. It is possible to improve the ventilation efficiency.

Therefore, the fan unit case can be formed thin and the air conditioner can be made compact.

Further, according to the present invention, the filter unit case, the fan unit case and the coil unit case are stacked from the bottom in a state of communicating with each other, and the untreated air taken into the filter unit case is discharged from the coil unit case as conditioned air. In the air conditioner configured as described above, a plurality of fan unit installation spaces for accommodating a plurality of electric motors and a plurality of fans that are rotationally driven in conjunction with the motors are formed in the fan unit case. At the same time, the flow path partition wall forming the fan unit installation space divides the intake flow path formed on the upstream side of each fan into a plurality of air flow paths,
Inside each fan unit installation space, a motor mounting plate for mounting an electric motor is installed along the air flow, and each motor flow path is used to connect each air flow path to the left air flow path and the right air flow path. By partitioning the filter case with the passage, and by arranging the filter retainer at a position along the virtual perpendicular line extending downward from the lower end of the flow path partition wall or the motor mounting plate in the filter unit case, Each of the intake passages, which are partitioned and formed on the upstream side, are also extended into the fan unit case,
The flow path resistance of the air flowing from the filter unit to the fan unit can be reduced, and the intake flow path is partitioned so that the air can flow into the fan more smoothly, so that the blowing efficiency of the fan can be improved.

[Brief description of drawings]

FIG. 1 is a front view of an air conditioner according to the present invention.

FIG. 2 is a side view of the air conditioner.

FIG. 3 is an explanatory diagram showing an internal structure of the air conditioner.

FIG. 4 is an explanatory view showing a unit assembly structure of the air conditioner.

FIG. 5 is an explanatory view of a connecting tool.

FIG. 6 is an explanatory diagram of a sealing surface.

FIG. 7 is an explanatory diagram of the fan unit as viewed from the front.

FIG. 8 is an explanatory diagram of the same side view.

FIG. 9 is an explanatory diagram of a motor mounting plate.

FIG. 10 is an explanatory diagram showing an intake passage.

FIG. 11 is a front view of a fan unit of a conventional air conditioner.

FIG. 12 is an explanatory view from a side view of a fan unit of a conventional air conditioner.

[Explanation of symbols] A air conditioner F fan M electric motor R Intake flow path 1 Filter unit case 2 fan unit case 3 coil unit case 20 fan unit 24 Motor mounting plate 25 Left channel 26 Right channel

Continuation of front page (56) Reference JP-A-5-149584 (JP, A) JP-A-6-241484 (JP, A) JP-A-53-85511 (JP, A) JP-A-2-166325 (JP , A) JP-A-5-52363 (JP, A) Actually opened 62-76716 (JP, U) Actually opened 57-114315 (JP, U) Actually opened 4-84800 (JP, U) Actually opened 57-58815 (JP, U) Actual development Sho 54-1943 (JP, U) Actual development Hei 5-19822 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) F24F 1/00 321 F24F 3/044 F24F 1/00 401

Claims (2)

(57) [Claims] 1. A filter unit case (1) from below
, Fan unit case (2), coil unit case
In the air conditioner configured to stack the (3) in a state of communicating with each other and discharge the untreated air taken in the filter unit case (1) as conditioned air from the coil unit case (3), the fan unit case Inside (2), electric motor (M)
And a fan that is rotationally driven in conjunction with the motor (M)
(F) and a motor mounting plate for mounting the electric motor (M) along the air flow in the intake passage (R) formed on the upstream side of the fan (F). (24) is arranged, and the intake passage (R) is connected to the left passage (25) by the motor mounting plate (24).
An air conditioner characterized in that it is partitioned into a right-hand side flow path (26). 2. A filter unit case (1) from below
, Fan unit case (2), coil unit case
In the air conditioner configured to stack the (3) in a state of communicating with each other and discharge the untreated air taken in the filter unit case (1) as conditioned air from the coil unit case (3), the fan unit case (2) Inside, multiple electric motors
(M) and a plurality of fan units (F) that are rotatably driven by interlocking with each motor (M). Each fan is controlled by the partition wall (21) that forms the space (S).
The intake flow path (R) formed on the upstream side of (F) is divided into a plurality of intake flow paths (R), and each fan unit installation space (S) is electrically driven along the air flow. Motor mounting plate for mounting the motor (M) (2
4) are installed respectively, and the intake air passage (R) is connected to the left air passage (25) and the right air passage (2) by the motor mounting plate (24).
6) and is further divided into a filter unit case (1), and a filter holder is placed at a position along a virtual perpendicular line extending downward from the lower end of the flow path partition wall (21) or the motor mounting plate (24). An air conditioner characterized by being provided with (27).