JPS6312214B2 - - 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 is equipped with a ring p that scoops up water in the substrate b and blows it toward the outdoor heat exchanger h. There is. K is a compressor that constitutes a well-known refrigeration cycle together with the outdoor heat exchanger h. Further, an indoor heat exchanger m facing the front surface l is attached to the indoor ventilation system path c. 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 wind 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 following conditions are required: the front surface area (hereinafter referred to as the front surface area) is large, the depth through which the air passes (hereinafter referred to as the number of rows) is short, and the ventilation path is wide and smooth with few bends.
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 mounted on windows, the front area is limited by the amount of light from the windows to avoid making large holes in the wall. It was made as small as possible to avoid significant damage.

Conventionally, this type of air conditioner was designed to reduce costs by making it smaller, so as shown in Fig. 1 and Fig. 2, one motor i can operate a multi-blade fan o on the indoor side and a propeller fan j on the outdoor side. Since the emphasis is on driving the air conditioners at the same time, it is necessary to place an indoor heat exchanger m and an outdoor heat exchanger h along the front l and back g of the integrated air conditioner a, respectively. Therefore, the indoor and outdoor ventilation system paths c and d that ventilate these heat exchangers m and h are necessarily narrow and curved paths.

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, which increased the cost of both the motor i and the heat exchangers m and h. This results in the opposite of the original purpose of making the single fan motor i cheaper, and it cannot be said to be a good 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. Furthermore, since the ring p faces almost perpendicularly to the horizontal plane within the substrate b, its ability to scrape up water is small, and at the same time, the efficiency of scraping water is also poor, and it does not contribute much to improving the performance of the heat exchanger. Nakatsuta. In addition, large water droplets fly when the water is stirred up, making a loud noise and cooling the terminal section of the compressor with the water droplets, causing condensation on the inner surface of the terminal cover, and the condensed water dripping onto the terminals, causing the power to be cut off. There were problems such as short circuits.

As mentioned above, the conventional structure inevitably generates a lot of noise, requires a large capacity motor,
There were problems such as the inability to efficiently and safely treat condensed water from the indoor heat exchanger.

Purpose of the Invention The present invention solves the above-mentioned conventional drawbacks, improves ventilation efficiency, reduces noise, increases the degree of heat exchange utilization of condensed water, improves the heat exchange efficiency, and improves the heat exchange efficiency of the compressor. The purpose is to improve the safety of the terminal section.

Structure of the Invention In order to achieve this object, the present invention provides an air intake louver on the outdoor wall of the outer box constituting the main body of the air conditioner, and uses the opening of the outer box as an exhaust port to connect the outdoor heat exchanger. The outdoor fan constitutes a ventilation path flowing from the louver to the exhaust port, the outdoor fan is provided with a slinger ring for scattering condensed water accumulated on the substrate, and the outdoor heat exchanger is connected to the outdoor heat exchanger. A U-shape is formed along the back surface of the outer box and the intake louver, and water splash prevention plates are provided on opposite side surfaces of the U-shape on the water extension line of the slinger ring at a certain distance from the outdoor heat exchanger. Furthermore, the terminal portion of the compressor located on the leeward side of the outdoor fan is covered with two covers, a first cover and a second cover, with a certain space interposed therebetween.

With this configuration, the air flow direction of the ventilation circuit is different from the conventional one, and ventilation resistance is reduced.Also, by covering the terminal part of the compressor double with an inner cover and an outer cover, scattered condensation is prevented from reaching the inner surface of the inner cover. This prevents condensation and ensures electrical safety.

DESCRIPTION OF EMBODIMENTS The present invention will be described below with reference to FIGS. 3 and 4 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 8.

In the figure, the internal unit 4 includes a substrate 22 and a bulkhead 25 welded onto the substrate 22 to separate an outdoor ventilation system path 23 and an indoor ventilation system path 24.
It is composed of The outdoor ventilation system path 23 includes a suction port 15 on the back surface 9 of the outer box 3, a left side suction port 16 on the left side surface 10, and a right side suction port 1 on the right side surface 11.
U-shaped condenser 26 mounted opposite to 7
, a propeller fan 28 provided with a slinger ring 27 for ventilating the heat of the condenser 26 and scattering water on the substrate 22, and a fan motor 3 for driving the propeller fan 28.
0, a fan motor mounting plate 29 for mounting the fan motor 30 to the bulk head 25, an air guider 31 welded onto the board 22 to guide the wind from the propeller fan 28, and the air guider 3.
A connecting beam 32 is welded as a bridge between the bulk head 25 and the air guider 31, and a discharge pipe 33, a condenser 26, a strainer 34, and a carrier are used to prevent the upper end of the air guide 1 from swinging out and to reinforce the bulk head 25 and the air guider 31. It consists of a compressor 38 for constructing an annular refrigeration cycle together with a pillar tube 35, an evaporator 36, and a suction pipe 37, a support rubber 39 for the compressor 38, and bolts 40 for fixing the compressor 38 to the base plate 22. ing. Further, a slinger ring 2 of the propeller fan 28 is provided at the left end and right end of the condenser 26.
The left water splash prevention plate 41 and the right water splash prevention plate 42 are positioned so that they are located on the water line where water flies due to the rotation of 7.
are provided for each. Further, a condenser cover 43 is provided on the top surface of the condenser 26 and the air guider 31 to ensure airtightness of ventilation and to prevent water droplets from scattering. Further, the suction pipe 37 and the accumulator 44 of the compressor 38 are wrapped with heat insulating materials 47, 48, 49 using tape 45, band 46, or the like. Further, both ends of the condenser 26 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 grill 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. The air guider 52 of the Shirodskov fan 51, the wind inlet 53 of the Shirodskov fan 51, and the evaporator 3
6, a duct 56 made of heat-insulating foam for guiding the air blown from the Sirotsko fan 51 to the outlet 7 of the front grille 2, and a duct 56 that houses electrical parts and the like. Operation knob 57 and ventilation door operation knob 5
8, etc., and the bulk head 25.
The ventilation door operation knob is controlled by an insect screen 62 provided on the ventilation opening 61 in the bent part 60 of the ventilator, and one end 64 of the hinge part 63 fixed to the bulkhead 25, and a wire 66 provided inside the cylindrical outer cover 65. It is composed of a ventilation door 67 which opens and closes the ventilation port 61 by the operation of 58, and an indoor top cover 68 which protects the duct 56 and at the same time 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. 9 to 11.

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. Top surface air outlet 15, left and right side air intake ports 16,
17. The left and right side air outlets 18 and 19 are composed of wind direction changing plates 69 having a certain angle as shown in FIG. It is bent in the direction of 25. Also, the bottom surface 1 of the outer box 3
Both sides of the box 3 are made by bending the left and right side plates 10 and 11, and have semicircular rails 71 along the left and right side plates 10 and 11 toward the inside of the outer box 3. The board 22 is placed on the rail 71, and the internal unit 4 can be freely pulled out and pushed in. In addition, the left and right rails 71 are connected to the front surface 72 side of the outer box 3 by connecting bars 73 to ensure 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. In addition, 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 wind flowing through the outdoor ventilation system path 23 and mist moisture are transferred to the bulk head 25, Substrate 22
Also, it serves to prevent the top cover 68 from passing through the gap between the outer box 3 and the top cover 68 .

Next, the left water splash prevention plate 41 and the right water splash prevention plate 42 attached to the condenser 26 will be explained in detail based on FIG. 13.

In the figure, a condenser 26 configured in a U-shape
are the left and right water splash prevention plates 41 at the positions corresponding to the water extension line of the slinger ring 27 of the propeller fan 28 of the left bending part 81 and the right bending part 82, respectively.
42 is installed. These left and right water splash prevention plates 41 and 42 are water splash prevention parts 83 and 84, respectively, to prevent water splashed from the slinger ring 27 from flowing out through the condenser 26.
, top surface hook parts 86 and 87 that are hooked on the top surface 85 of the condenser 26 , bottom surface hook sections 89 and 90 that are hooked on the bottom surface 88 of the condenser 26 , and the condenser 26 .
In order to prevent the condenser 26 from coming off, claws 91, 92 and hooks 93, 94 extend from the top hooks 86, 87 and the bottom hooks 89, 90 and engage the condenser 26 at their tips. A presser part 95 equipped with
It is composed of 96, 97, and 98. Further, on the rear surface 99 side below the left water splash prevention plate 41, a band of water that has been scraped up by the slinger ring 27 and has not yet turned into droplets is provided to prevent the water from flying out to the outside of the condenser 26. A water stop plate 100 is provided.

Next, the protective structure of the terminal portion of the compressor 38 will be explained based on FIG.

In the same figure, the compressor 38 has fixing legs 111 at the lower part 110, a terminal part 114 having terminals 113 for electrical connection at the upper part 112, and suction pipes 37 at the side wall 115 and the upper part 112, respectively.
and a discharge pipe 33. Also, terminal part 1
14 is made of a highly electrically insulating and flame-retardant resin material such as phenol, and has a lead wire penetration portion 116.
The inner cover 117 is covered with an inner cover 117 having a shape, and this inner cover 117 further has a pointed protrusion 11 that is fitted into the side wall of the inner cover 117 through a certain space B.
8, and a sealing gasket 120 is provided between the lower ends of the inner cover 117 and the outer cover 119 and the upper part 112 of the compressor 38.

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.
The air passes through the air guider 31 by the propeller fan 28 at a substantially uniform wind speed, and then the top air outlet 20 , the left side air outlet 18 , and the right side air outlet 19
It's being blown out. In addition, in the indoor ventilation system path 24, as shown by the arrows in FIGS.
and passes through the suction port 53 to the Sirotskov fan 5.
1 to the duct 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 is sent to the condenser 26, where it is efficiently cooled by the air flowing uniformly through the condenser 26 and becomes a high-temperature liquid refrigerant, which passes through the strainer 34 and passes 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 heated by the wind passing through the evaporator 36, becomes gaseous, and is wrapped with heat insulating materials 47, 48, and 49 to prevent it from absorbing the heat blown by the propeller fan 28. It is sucked back into the compressor 38 through a suction pipe 37 and an accumulator 49 of the compressor 38 .

When the compressor 38 is operated in this manner, the air passing through the evaporator 36 is stripped of heat and moisture. Therefore, condensed water adheres to the surface of the evaporator 36, collects in the water tray 50 below the evaporator 36, and is guided to the outdoor ventilation system path 23 side of the substrate 22.
The condensed water accumulated on the substrate 22 is scraped up by the slinger ring 27 of the propeller fan 28. In the vicinity of the contact between the slinger ring 27 and the water surface, water forms a band-shaped film and flies out diagonally upward. The water that has formed into a band-shaped film is stopped by a water stop plate 100 disposed below the left water splash prevention plate 41 in a portion that receives this water, and is reflected back to the substrate 22. In addition, the water adhering to the slinger ring 27 is scattered in the circumferential direction of the slinger ring 27, and the water passes through the condenser 26 and hits the left water splash prevention plate 41 and the right water splash prevention plate 42 located on the water spread line. is prevented from popping out. Also Slinger Ring 27
A part of the water stirred up becomes small water droplets, passes through the condenser 26, rides on the wind toward the bulkhead 25, and is sent to the air outlet 20 and the left side air outlet 1.
8. Head towards the right side air outlet 19. At this time, the small water droplets hit the louver-shaped wind direction changing plate 69 and therefore do not fly out to the outside of the outer box 3.

In addition, warm air and small water droplets passing through the condenser 26 and heading toward the bulkhead 25 are blocked by the sealing materials 77, 78, 79, and 80 between the bulkhead 25 and the outer box 3, and do not enter the indoor ventilation system 24. . Also, the sealing material 74, 7 affixed to the inside of the outer box
5 and 76, the wind passing through the air guider 31 passes through the gap in the outer box 3 and is short-circuited to the suction port 1 on the back side 9.
5, and the left and right suction ports 16 on the left and right sides 10 and 11,
17 will not be sucked in.

Further, the condensed water scattered by the slinger ring 27 rides on the wind flow generated by the propeller fan 28 and hits the compressor 38 on the leeward side. At this time, a part of the scattered condensed water enters the terminal part 114 from the lead wire penetration part 116, and the terminal part 114
The humidity around the compressor 38 is increased, and the temperature is further increased by the heat of the upper portion 112 of the compressor 38. However, since the outer cover 119 exists with a certain space on the outer periphery of the inner cover 117, only the outer cover 119 is directly cooled by the scattered condensed water, so the inner cover 117 cannot be cooled. Therefore, the moisture present in the terminal portion 114 condenses on the inner surface of the inner cover 117 as described above, and the terminal 1
There is no danger that the insulation resistance will decrease due to dripping on 13.

Such an integrated air conditioner provides the following results.

(1) Since the wind passing through the condenser 26 flows smoothly without being disturbed according to the suction action of the propeller fan 28, the wind passing through the condenser 26 flows smoothly without being disturbed.
Compared to the case where the condenser is placed on the outlet side of the condenser 8, the noise can be reduced, and since the air is taken in from the condenser 26 side, the intake area is wide, and the heat exchange of the condenser 26 is improved. Performance can be improved.

(2) It also passes through the condenser 26 and the propeller fan 2
The wind blown out from the outer box 3 is aired through the air outlets 18, 19, 20 on the top surface 12 and both left and right sides 10, 11 of the outer box 3.
Since the air flows smoothly towards the air, there is less ventilation resistance in the ventilation system path on the outdoor side, so the input to the motor 30 can be small. In addition, since the flow of air is smooth toward the outer box 3, the distance between the bulkhead 25 and the air guider 31 can be made relatively small, making the outdoor air system path more compact. Therefore, since the distance between the blower in the ventilation system path on the indoor side and the evaporator 36 can be increased accordingly, the noise of the blower on the indoor side can be reduced.

(3) Also, slinger ring 2 of propeller fan 28
The condensed water scraped up by the condenser 7 is prevented from passing through the heat exchanger and flying out to the outside by water splash prevention plates 41 and 42 provided on the water extension line of the slinger ring 27 of the condenser 26.

(4) Also, a part of the condensed water scraped up by the slinger ring 27 hits the louver-shaped wind direction changing plate 69 whose tip faces toward the bulkhead 25, so that it does not fly out to the outside. Also bulkhead 25
Warm air and moisture flowing toward the indoor ventilation system through the gap between the bulkhead 25 and the outer box 3 are blocked by the sealing material 79 provided between the bulkhead 25, the top surface of the bulkhead, and the outer box 3, thereby preventing water from entering the indoor side. This prevents the cooling capacity from decreasing due to the intrusion of warm air. In addition, the low-temperature pipes such as the suction pipe and the compressor accumulator are insulated to prevent them from absorbing heat from the hot air sent out by the propeller fan 28, so the suction efficiency of the compressor 38 is not reduced and cooling operation is performed efficiently. be able to.

(5) Furthermore, since the terminal section 114 of the compressor 38 is provided with an external cover 119 at a certain interval outside the internal cover 117, the condensed water scattered by the slinger ring 27 is
19, the inner cover 117 is cooled and no dew condensation occurs inside the inner cover 119, thereby improving electrical insulation safety.

Effects of the Invention As is clear from the above embodiments, the integrated air conditioner of the present invention has a cylindrical outer box and a board removably housed in the outer box. A partition plate is provided on the board to partition the air conditioner main body into an outdoor side and an indoor side, and a compressor, an outdoor heat exchanger, and an outdoor fan forming a refrigeration cycle are provided on the outdoor side. ,
Further, an indoor heat exchanger and an indoor fan constituting the refrigeration cycle are provided on the indoor side, a fan motor for driving the outdoor fan and the indoor fan is attached to the partition plate, and an outdoor wall of the outer box is provided with a fan motor for driving the outdoor fan and the indoor fan. A louver for intake is installed in the
In addition, the outdoor heat exchanger is provided facing the outdoor heat exchanger using the opening of the outer box as an exhaust port, and the outdoor fan forms a ventilation circuit in which the air flows from the louver to the exhaust port, so that the air passing through the outdoor heat exchanger Because the air flows smoothly without disturbance as the outdoor fan takes in air, the noise can be reduced compared to the conventional case where an outdoor heat exchanger is installed on the outlet side of the outdoor fan. Furthermore, since air is taken in from the outdoor heat exchanger side, the air intake area is wide, improving the heat exchange performance of the outdoor heat exchanger. Since the compressor is covered with two covers, an inner cover and an outer cover, even if the compressor is more likely to get wet than in the past, as with this configuration, no condensation will form inside the inner cover, ensuring electrical safety. It has various advantages, such as the ability to increase the

[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 the sealing material in the air conditioner, and FIG. 13 shows how the water splash prevention plate is attached to the outdoor heat exchanger in the air conditioner. The perspective view and FIG. 14 are sectional views of the terminal portion of the compressor in the air conditioner. 1...Air conditioner body, 3...Outer box, 15,1
6, 17... Suction port, 18, 19, 20... Air outlet, 22... Board, 25... Bulk head (partition plate), 26... Condenser, 28... Blooper fan, 30... Fan motor, 36 ……Evaporator,
38... Compressor, 51... Sirotskov fan, 11
4...Terminal section, 117...Inner cover, 1
19...External cover, B...Space.

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 for partitioning, and a compressor, an outdoor heat exchanger, and an outdoor fan that constitute a refrigeration cycle are provided on the outdoor side, and a slinger ring for scattering condensed water is provided on the outdoor fan, and on the indoor side, An indoor heat exchanger and an indoor fan constituting the refrigeration cycle are provided, a fan motor for driving the outdoor fan and the indoor fan is attached to the partition plate, and a louver for intake is provided on the outdoor wall of the outer box. furthermore, the outdoor heat exchanger is provided facing the outdoor heat exchanger with the opening of the outer box as an exhaust port, and a ventilation circuit is configured in which air flows from the louver to the exhaust port by the outdoor fan,
Moreover, an integrated air conditioner is provided with an inner cover that covers a terminal portion of the compressor, and an outer cover is provided around the outer periphery of the inner cover with a certain space therebetween.