JPS6326293B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an integrated air conditioner installed in a window or the like.

Conventional Structure and Problems Conventionally, this type of integrated air conditioner has been structured as shown in FIGS. 1 and 2. That is,
In the figure, an integrated air conditioner a has a board b,
An indoor ventilation system path c and an outdoor ventilation system path d are placed on the board b.
The main body is composed of a partition wall e that separates the main body, an outer box f, etc. An outdoor heat exchanger h is attached to the outdoor ventilation system path d facing the back surface g, and a motor i is mounted on the partition wall e so that its rotation axis is perpendicular to the partition wall e.
is installed. j is a propeller fan that is attached to one end of this motor i and blows air toward the outdoor heat exchanger h, and k is a compressor that constitutes a well-known refrigeration cycle together with the outdoor heat exchanger h. Furthermore, in the indoor ventilation system path c, the front 1
An indoor heat exchanger m is installed facing the. o is a multi-blade fan facing the indoor heat exchanger m, which is attached to the other end of the motor i, and blows the air passing through the indoor heat exchanger m to the wind tunnel part n.

Here, it goes without saying that the ideal ventilation path in this type of integrated air conditioner has a lower resistance, the better. The front surface area (hereinafter referred to as the front area) is wide, the depth through which the air passes (hereinafter referred to as the number of rows) is short, the ventilation system path is wide and smooth with few bends, and the speed of the wind passing through the heat exchanger is Conditions such as uniformity at each point are required. Only when these conditions are met will a ventilation system path with low ventilation resistance be constructed, making it possible to realize an integrated air conditioner that can blow a large volume of air with low noise using a small-capacity motor.

However, since conventional integrated air conditioners of this type are installed through walls or windows, the front area is limited to avoid the need to make large holes in the wall, and to accommodate window lighting. It was made as small as possible in order not to damage it significantly.

In addition, conventionally, this type of air conditioner was first designed to reduce costs by making it smaller.
As shown in Figures 2 and 2, since the focus is on driving the multi-blade fan c on the indoor side and the propeller fan j on the outdoor side simultaneously with one motor i, the front side 1 of the integrated air conditioner a The indoor heat exchanger m and the outdoor heat exchanger h have to be placed along the back surface g, and therefore the indoor and outdoor ventilation inevitably flows through these heat exchangers m and h. The paths c and d were narrow and curved, and the speed of the air passing through the heat exchanger was also non-uniform.

Therefore, in the end, a fairly large capacity motor i is required for ventilation, and the front area of each heat exchanger m and h has to be reduced, so the number of stages of each heat exchanger m and h is increased. , it became necessary to increase the depth dimension, and the cost of both the motor i and the heat exchangers m and h increased. This results in the opposite of the original purpose of using one fan motor i to make it cheaper, and it cannot be said to be good as a ventilation structure.

That is, as mentioned above, priority is given to installing two fans o and j at both ends of one motor i inside a limited box, so multi-blade fans o and
The shapes of the suction side and the blowout side of the propeller fan j could not be made so that these fans o and j could be operated with low noise.

As described above, the conventional structure inevitably generates a large amount of noise and requires a large-capacity motor.

OBJECT OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks.
The purpose is to improve ventilation efficiency, reduce noise, and improve heat exchange efficiency.

Structure of the Invention In order to achieve this object, the present invention provides an air intake louver on the outdoor side wall of an outer box constituting the main body of an air conditioner, and uses an opening of the outer box as an exhaust port to connect the outdoor heat exchanger to the air conditioner. and an outdoor auxiliary heat exchanger is provided facing each other, the outdoor fan constitutes a ventilation circuit that flows from the louver to the exhaust port, and the outdoor heat exchanger is arranged along the back surface of the outer box and the intake louver. It has a U-shape, and an auxiliary outdoor heat exchanger is installed in the part of the outdoor heat exchanger where there is less ventilation resistance.

With this configuration, the airflow direction of the ventilation circuit is different from the conventional one, and ventilation resistance can be reduced.

DESCRIPTION OF EMBODIMENTS The present invention will be described below with reference to FIGS. 3 to 13 of the accompanying drawings showing one embodiment thereof.

First, the overall structure of the integrated air conditioner will be outlined with reference to FIGS. 3 and 4.

In the figure, reference numeral 1 denotes a main body of an integrated air conditioner, which is composed of a front grill 2, an outer box 3, and an internal unit 4 housed in the outer box 3 so as to be able to be drawn out. The front grill 2 is removably attached to the front face 5 of the main body 1 and has an inlet 6, an outlet 7, and an operation section cover 8. Also outer box 3
is formed into a cylindrical shape by a back surface 9, a left side surface 10, a right side surface 11, a top surface 12, and a bottom surface 13 of the main body 1.
The back surface 9 has a suction port 15 to which a guard net 14 is attached. Further, each of the left and right side surfaces 10 and 11 has a louver-shaped left side suction port 16 and a right side suction port 17 on the back surface 9 side. Further, each of the left and right side surfaces 10 and 11 has a louver-shaped left side air outlet 18 and a right side air outlet 19 adjacent to the left side air inlet 16 and the right side air inlet 17. Furthermore, the top surface 12 has a louver-shaped outlet 20.

Next, the internal unit 4 of the integrated air conditioner will be explained with reference to FIGS. 5 to 9.

In the figure, the internal unit 4 includes a substrate 22
and is welded onto the substrate 22 to form an outdoor ventilation system passage 23.
It is composed of a buckle head 25 that separates the indoor ventilation system passage 24 from the indoor ventilation system passage 24. Outdoor ventilation system path 23
are the suction port 15 on the back 9 of the outer box 3 and the left side 10
A U-shaped condenser 26 is installed opposite the right side suction port 16 of the right side suction port 17 of the right side surface 11, and a U-shaped condenser 26 is installed at the part of the condenser 26 with the least ventilation resistance and is integrated with the condenser 26. an I-shaped auxiliary condenser 27 fixed to the condenser 26;
A propeller fan 28 for ventilation to radiate heat from the auxiliary condenser 27, a fan motor 30 for driving the propeller fan 28, a fan motor mounting plate 29 for mounting the fan motor 30 on the bulkhead 25, and a substrate 22. Air guider 3 welded on top to guide the wind from propeller fan 28
1, a connector 32 welded as a bridge between the bulk head 25 and the air guider 31 in order to prevent the upper end of the air guider 31 from swinging and to reinforce the bulk head 25 and the air guider 31, a discharge pipe 33, and a condenser 26. , a connecting pipe 81 between the condenser 26 and the auxiliary condenser 27, an auxiliary condenser 27, an outlet pipe 82 of the auxiliary condenser, a strainer 34, a capillary tube 35, an evaporator 36,
A compressor 38 for forming an annular refrigeration cycle together with the suction pipe 37, a support rubber 39 for the compressor, and bolts 40 for fixing the compressor 30 to the base plate 22.
It consists of

Further, the condenser 26 and the auxiliary condenser 27 are integrally fixed by a flat plate 42 having protrusions at both ends that engage and fix to the heat exchanger copper tube 41.
Further, a condenser cover 43 is provided on the top surface of the condenser 26 and the air guider 31 in order to ensure airtightness of ventilation and to prevent water droplets from scattering. Furthermore, the suction pipe 37 and the accumulator 44 of the compressor 38 are insulated by tape 45, band 46, etc.
49 is wrapped around it. In addition, the condenser 26
Both ends thereof are screwed to both ends of the air guider 31 and fixed on the substrate 22.

Further, the indoor ventilation system passage 24 includes an evaporator 36 which is provided opposite to the suction port 6 of the front grille 2 and whose left end is engaged with the bulkhead 25, and this evaporator 36.
6, a water tray 50 for collecting condensed water and guiding it to the outdoor side ventilation system passage 23, a Shirotsuko fan 51 attached to the shaft of the fan motor 30 to ventilate to the evaporator 36, and a heat insulating foam. Air guider 52 of Naru Sirotskov fan 51,
From the Sirotsko air guider side plate 55 which also serves as the air inlet 53 of the Sirotsko fan 51 and the top cover 54 of the evaporator 36, and from the heat insulating foam for guiding the wind blown from the Sirotsko fan 51 to the outlet 7 of the front grille 2. duct 56, an operation section 59 that houses electrical components and has an electrical component operation knob 57, a ventilation door operation knob 58, etc., and a bulkhead 2.
The ventilation door can be operated using an insect repellent screen 62 installed in the ventilation opening 61 at the bent part 60 of 5, and a wire 66 installed inside the cylindrical jacket 65 with one end 64 of the hinge part 63 fixed to the bulkhead 25. It consists of a ventilation door 67 that opens and closes the ventilation port 61 by operating a knob 58, and an indoor top cover 68 that protects the duct 56 and maintains the strength of the bulkhead 25.

Next, the structure of the outer box 3 and the sealing material will be explained with reference to FIGS. 10 to 13.

In the figure, 3 is the outer box, and as mentioned above, the back 9
has a suction port 15 , the left side surface 10 has a left side suction port 16 on the back side 9 side and a left side blowout port 18 adjacent thereto, and the right side side 11 has a right side suction port 17 on the back side 9 side. It has a right side air outlet 19 adjacent thereto, and the top surface 12 has an air outlet 20. The air outlet 20 on the top surface 12, the left and right side air inlets 16, 17, and the left and right side air outlets 18, 19 are the first
Wind direction changing plate 6 having a certain angle as shown in Figure 1
9, the tip 7 of each wind direction changing plate 69
0 is bent toward the bulkhead 25 as shown in FIGS. 7 and 8. Also, both sides of the bottom surface 13 of the outer box 3 are made by bending the left and right side plates 10 and 11, and semicircular rails are formed along the left and right side plates 10 and 11 toward the inside of the outer box 3. 71, and this rail 71
A board 22 is placed on top of the internal unit 4, so that the internal unit 4 can be freely pulled out and pushed in. In addition, each of the left and right rails 71 connects the front 72 side of the outer box 3 with a connecting bar 73.
This ensures the strength of the outer box 3.

Furthermore, 74, 75, and 76 are respectively left side 1
0, a sealing material affixed to the inner surfaces of the right side 11 and the top surface 12, between the left side suction port 16 and the left side outlet 18, and between the right side suction port 17 and the left side outlet 19, respectively. Air leakage between the inlet 15 on the back and the outlet 20 on the top 12 is prevented. Further, 77, 78, 79, and 80 are sealing materials affixed to the left side 10, right side 11, top surface 12, and connecting crosspiece 73, respectively, so that the air flowing through the outdoor ventilation system passage 23 can be connected to the bulkhead 25, the board 22, and This serves to prevent the top cover 68 from passing through the gap between the outer box 3 and the top cover 68 .

In the above configuration, the flow of air when the fan motor 30 is operated will be explained. First, when the fan motor 30 is operated by operating the electric component operating knob 57, the propeller fan 28 attached to both ends of the shaft of the fan motor 30 and the sirotsko fan 51 rotate. As a result, the outdoor ventilation system passage 23
As shown by the arrows in FIG. 7 and FIG.
6. The air passes through the auxiliary condenser 27 at a substantially uniform wind speed, passes through the air guider 31 by the propeller fan 28, and then passes through the top air outlet 20, the left side air outlet 18,
The air is blown out from the right side air outlet 19. In addition, in the indoor ventilation system passage 24, as shown by the arrows in FIGS. 7 and 8, the air sucked in from the suction port 6 of the front grille 2 passes through the evaporator 36, passes through the suction port 53, and is ducted by the Sirotskov fan 51. 56 and is sent into the room from the outlet 7 of the front grille 2.

Next, when the compressor 38 is operated by operating the electric component operation knob 57, the discharge pipe 33 is discharged from the compressor 38.
The high temperature gaseous refrigerant sent to the auxiliary condenser 27 is sent to the auxiliary condenser 27 through the condenser 26 and the connecting pipe 81 between the condenser 26 and the auxiliary condenser 27. It is efficiently cooled and becomes a high temperature liquid refrigerant in the strainer 3.
4 and pass through the capillary tube. During this time, a low-pressure gas-liquid mixture state is reached, and the mixture reaches the evaporator 36. In the evaporator 36, the gas-liquid mixed refrigerant is transferred to the evaporator 3.
The suction pipe 37 and the compressor 3 are heated by the wind passing through the suction pipe 37 and become gaseous, and are wrapped with insulating materials 47, 48, and 49 to prevent them from absorbing the heat blown by the propeller fan 28.
The air is sucked into the compressor 38 again through the 8 accumulator 49.

Further, the temperature flowing toward the bulkhead 25 through the condenser 26 is blocked by the sealing materials 77, 78, 79, and 80 between the bulkhead 25 and the outer box 3, and does not enter the indoor ventilation system 24. In addition, sealing materials 74, 75, and 76 pasted on the inside of the outer box cause the air that has passed through the air guider 31 to pass through the gap in the outer box 3 and short-circuit between the air inlet 15 on the back surface 9 and the left and right side surfaces 10 and 11. It will not be sucked into the suction ports 16 and 17.

Such an integrated air conditioner provides the following effects.

(1) Since the wind passing through the condenser 26 and the auxiliary condenser 27 flows smoothly without being disturbed according to the intake action of the propeller fan 28, the condenser is disposed on the outlet side of the propeller fan 28 as in the conventional case. The noise can be reduced compared to the case where the condenser 26 and the auxiliary condenser 27 are used, and the heat exchange performance of the condenser 26 and the auxiliary condenser 27 is improved because the air is taken in from the condenser 26 side. .

(2) An auxiliary condenser 27 is provided in a portion of the condenser 26 with low ventilation resistance, which makes it possible to equalize the ventilation resistance of the entire condenser.
6 and the auxiliary condenser 27 and blown out from the propeller fan 28, the air is blown out from the top surface 12 of the outer box 3 and the air outlets 18, 19, 2 on the left and right sides 10, 11.
Since the air flows smoothly toward 0, there is less ventilation resistance in the ventilation system path on the outdoor side, so the input to the motor 30 can be small.

Further, since the air flows smoothly toward the outer box 3, the distance between the bulkhead 25 and the air guider 31 can be made relatively small, and the outdoor ventilation system can be made compact.

Therefore, the distance between the blower in the ventilation system path on the indoor side and the evaporator 36 can be increased accordingly, so that the noise of the indoor side blower can be reduced.

(3) In addition, warm air passing through the gap between the bulkhead 25 and the outer box 3 and heading toward the ventilation system on the indoor side is blocked by the sealing material 79 provided between the bulkhead 25, the top surface of the bulkhead, and the outer box 3, and flows toward the indoor side. This prevents the intrusion of water and the decline in cooling capacity due to the intrusion of hot air. In addition, low-temperature pipes such as suction pipes and compressor accumulators are connected to the propeller fan 2.
Since the compressor 38 is insulated to avoid absorbing heat from the hot air sent out by the compressor 8, the compressor 38 can perform cooling operation efficiently without lowering its suction efficiency.

Effects of the Invention As is clear from the above embodiments, the present invention has the advantage that the wind passing through the outdoor heat exchanger flows from the opposite side walls of the outer box toward the blowout opening on one side.
The air flows smoothly without turbulence according to the intake action of the outdoor fan, and as a result, compared to the conventional case where an outdoor heat exchanger is installed on the outlet side of the outdoor fan, the noise can be reduced. Furthermore, since air is taken in from the outdoor heat exchanger side, the intake area can be increased, and the resistance of the outdoor heat exchanger is made uniform by the auxiliary condenser, improving the performance of the outdoor heat exchanger.

[Brief explanation of the drawing]

Fig. 1 is a plan sectional view of a conventional integrated air conditioner, Fig. 2 is a side sectional view of the same air conditioner, and Fig. 3 is a front side of an integrated air conditioner according to an embodiment of the present invention. Figure 4 is a perspective view of the air conditioner from the rear side, Figure 5 is a perspective view of the internal unit of the air conditioner from the front side, and Figure 6 is a perspective view of the air conditioner from the front side.
The figure is a perspective view of the internal unit from the rear side.
The figure is a sectional plan view of the air conditioner, Figure 8 is a side sectional view of the air conditioner, Figure 9 is a perspective view of the outer box of the air conditioner, and Figure 10 is a louver section of the outer box. Plan view, Figure 11 is A-A in Figure 10
12 is a perspective view showing the arrangement of sealing materials in the air conditioner, and FIG. 13 is a perspective view showing how the auxiliary condenser is attached to the condenser in the air conditioner. 1...Integrated air conditioner body, 3...Outer box, 1
5... Suction port, 16... Left side suction port, 17
...Right side suction port, 18...Left side air outlet,
19... Right side air outlet, 22... Board, 25...
... Bulkhead, 26 ... Condenser, 27 ... Auxiliary condenser, 28 ... Propeller fan, 30 ... Fan motor, 36 ... Evaporator, 38 ... Compressor, 5
1... Sirotskov fan.

Claims (1)

[Claims] 1. An air conditioner main body is composed of a cylindrical outer box and a board that is removably housed in the outer box, and the board has internal parts inside the air conditioner main body, including an outdoor side and an indoor side. A partition plate is provided on the outdoor side, and a compressor, an outdoor heat exchanger, an outdoor auxiliary heat exchanger, and an outdoor fan are provided on the outdoor side, and an indoor side that makes up the refrigeration cycle is provided on the indoor side. A heat exchanger and an indoor fan are provided, a fan motor for driving the outdoor fan and the indoor fan is attached to the partition plate, a louver for intake is provided on the outdoor side wall of the outer box, and an opening in the outer box is provided. The outdoor heat exchanger is provided opposite to the intake louver and the exhaust port, with An integrated air conditioner comprising an outdoor heat exchanger and a ventilation circuit configured by the outdoor fan to flow from the louver to the exhaust port.