JP4591158B2 - Air conditioner - Google Patents

Description

  The present invention relates to a structure of an integrated air conditioner having a refrigeration cycle in a frame.

  An air conditioner called a chiller or a dehumidifier is a compressor that compresses refrigerant into the frame, a condenser that sends compressed high-temperature gaseous refrigerant, and refrigerant that is liquefied by the condenser is sent via a decompressor. The refrigerant that is vaporized by the evaporator is returned to the compressor to constitute a refrigeration cycle.

A drain tank is placed in the lower part of the frame, and moisture contained in the air that passes through the evaporator is condensed on the surface of the evaporator to form drain water, and the drain water generated by the evaporator is placed in the lower part of the frame. The collected water is collected in the drain tank and drained by the user whenever a certain amount of drain water is accumulated (see Patent Document 1).
Japanese Patent Laid-Open No. 5-33962

  Since the drain water generated by the evaporator is dripped at the bottom of the frame, the control board is placed near the top plate in the frame above the evaporator so that the drain water is not applied to the control board that controls the operation of the air conditioner. It is common. However, because the air passing through the evaporator at the upper part of the frame and the vicinity of the air outlet and the air outlet are cooled by the air cooled by the evaporator, indoor air may come into contact with the air outlet and the air outlet to cause condensation. There is a risk that water droplets due to condensation may be applied to the control board.

  In addition, this type of air conditioner has been designed to lighten the main body for use by moving it to an arbitrary place, or to improve the convenience of handling by installing casters. In this way, if the water tank falls over while moving, the water in the drain tank may spill out and flow into the frame.

  For this reason, the control board needs a waterproof measure to make it completely sealed and sealed, and when checking the control board for maintenance, not only the cover that covers the control board, but also many packings to make the inside sealed It must be done after removing parts such as screws, and the removal of these parts is cumbersome and easy to lose, creating a very inconvenient state.

  In addition, although the air conditioner operation unit and the blower fan outlet are arranged at the upper part of the frame body, in the structure where the control board is arranged at the upper part of the frame body, the position of the operation part and the air outlet is restricted, The arrangement efficiency of the components in the frame was poor, and the frame shape was large.

  The present invention solves the above-described problem. A compressor 2 that compresses a refrigerant into the inside of a frame 1, a capacitor 3 to which high-temperature and high-pressure refrigerant gas is sent, and a refrigerant liquefied by the capacitor 3 are passed through a decompressor. And a evaporator 4 that is sent to the refrigerant, and constitutes a refrigeration cycle in which the refrigerant vaporized by the evaporator 4 is returned to the compressor 1, and a drain that collects drain water generated from the air that passes through the evaporator 4 is disposed in the lower part of the frame 1. In the air conditioner provided with the tank 5, a partition plate 8 is provided on the base 1 a of the frame body 1 to divide the inside of the frame body 1 and form a mounting portion 6 of the compressor 2 and a tank storage portion 7. A part of the partition plate 8 is also located on the side of the mounting portion 6 of the compressor 2 and the tank storage portion 7 and forms a partition wall 8a between the side plate 1b of the frame body 1 with a gap 9 therebetween, Formed on the partition wall 8a toward the mounting portion 6 side of the compressor 2 The control substrate chamber 10 is formed by a concave portion, and the control substrate 11 of the air conditioner is attached to the control substrate chamber 10, and the partition wall 8 a around the control substrate chamber 10 is in close contact with the side plate 1 b of the frame 1. The partition frame body 8b is formed, and the control board chamber 10 creates a sealed space independent of the interval 9 by the partition frame body 8b, and the control board chamber 10 opens when the side plate 1b of the frame body 1 is removed. Thus, the control board 11 can be attached and detached.

  Moreover, since the drain drain 12 which connects the space | interval 9 and the exterior of the frame 1 was formed in the lower part of the side plate 1b of the frame 1, the drain water dripped in the space | interval 9 is drained from the drain drain 12, and is framed. The drain water does not accumulate in the body 1 and the drainage of the drain water into the control board chamber 10 can be reliably prevented.

  Further, the drain outlet 12 opens to a corner portion between the side surface and the lower surface of the side plate 1b, and the partition wall 8a is formed with a communication hole 13 that communicates the tank storage portion 7 with the interval 9, thereby overturning the air conditioner. Since the drain water flowing out of the drain tank 5 is sometimes led from the communication hole 13 to the interval 9 and drained from the drain drain port 12 to the outside of the frame 1, it is possible to prevent drain water from entering the control board chamber 10.

  In addition, the control board 11 disposed in the control board chamber 10 is positioned inside the partition wall 8a and is attached so that the lower end of the control board 11 is positioned higher than the bottom surface of the control board chamber 10. Even if water is immersed in the control substrate chamber 10, the control substrate 11 does not get wet immediately.

  Further, an air intake 14 is provided in the side plate 1 b opposite to the side plate 1 b facing the partition wall 8 a, and the evaporator 4 is disposed in the frame body 1 facing the air intake 14. It is possible to prevent the generated drain water from flowing into the partition wall 8a.

  In the air conditioner of the present invention, a partition wall 8a is formed on the side of the mounting portion 6 of the compressor 2 and the tank storage portion 7 formed on the base 1a of the frame body 1, and the air conditioner is controlled in the partition wall 8a. A control substrate chamber 10 in which the substrate 11 is arranged is provided, a partition frame 8 b that is in close contact with the side plate 1 b of the frame 1 is provided in a partition wall 8 a around the control substrate chamber 10, and the control substrate chamber 10 is provided on the side plate of the frame 1. Since the sealed space is made independent of the interval 9 between 1b and the partition wall 8b, even if the drain water generated by the evaporator 4 drops on the interval 9, the drain water is blocked by the partition frame body 8b and is controlled. The control board 11 arranged in the control board chamber 10 can be waterproofed.

  Further, since the control board chamber 10 can be integrally formed with the partition wall 8a by the recess formed in the partition wall 8a, parts such as a cover for waterproofing are not necessary, and the side plate 1b of the frame body 1 can be removed. Since the control substrate chamber 10 is opened and the control substrate 11 can be attached and detached, the maintenance can be easily performed.

  Further, by arranging the control board 11 at the lower part in the frame body 1, the positions of the operation unit and the air outlet arranged at the upper part of the frame body 1 are not restricted, and the arrangement efficiency is improved and the frame body 1 is improved. Compactness is now possible.

  In addition, since the drain outlet 12 is provided at the lower part of the frame body 1 to communicate the gap 9 and the outside of the frame body 1, the drain water that has flowed to the lower part of the frame body 1 even if the drain water drops in the gap 9 Since the water can be drained from the drain drain port 12, the drain water does not accumulate in the frame 1, and the drainage of the drain water into the control board chamber 10 can be reliably prevented.

  Further, the drain outlet 12 is opened at the corners of the side surface and the lower surface of the frame 1, and the communication wall 13 is formed in the partition wall 8 a so as to communicate the tank storage portion 7 and the interval 9. When the water in the drain tank 5 is spilled by overturning, the drain water flows through the communication hole 13 through the interval 9 and is discharged from the drain outlet 12 to the outside of the frame 1, so that the drain water is accumulated in the frame 1. In addition, since it is possible to reliably prevent water from entering the control board chamber 10, the control board 11 can be reliably waterproofed even when the air conditioner falls.

  In addition, the control board 11 disposed in the control board chamber 10 is mounted on the inner side of the partition wall 8 and higher than the bottom surface of the control board chamber 10, so that the control board 11 is positioned higher than the partition wall 8a when the air conditioner falls. Therefore, even if drain water spilled during the fall flows into the control board chamber 10 from between the side plate 1 of the frame body 1 and the partition frame body 8b, the control board 11 can be prevented from getting wet. Even when the air conditioner is raised, the control board 11 is not wetted by the water flowing on the bottom surface of the control board chamber 10, and the control board 11 can be prevented from being broken.

  Further, since the air intake 14 is provided in the side plate 1b opposite to the side plate 1b facing the partition wall 8a, and the evaporator 4 is disposed in the frame 1 facing the air intake 14, the control board chamber 10 Since the drain water generated by the evaporator 4 is not applied to the partition wall 8a on the side provided with the refrigeration, no cool air flows in the vicinity of the control board chamber 10 and no dew condensation occurs, so that the control board 11 is reliably waterproofed. It became possible.

  The present invention will be described with reference to the embodiments shown in the drawings. Reference numeral 1 denotes a frame constituting an air conditioner, 1a denotes a base forming a bottom plate of the frame 1, 2 denotes a compressor disposed on a base 1a in the frame 1, 3 is a condenser to which the refrigerant compressed by the compressor 2 is sent, and 4 is an evaporator to which the refrigerant radiated and liquefied is sent, and the liquid refrigerant sent to the evaporator 4 is vaporized, and the heat of vaporization of the refrigerant To cool the surroundings. Thereafter, the refrigerant gas evaporated by the evaporator 4 is returned to the compressor 2, and the refrigerant pressurized by the compressor 2 is sent to the condenser 3 and circulated.

  15 is an exhaust outlet provided on the back side of the frame 1, 16 is an exhaust fan that blows air to the condenser 3, and air blown by the exhaust fan 16 passes through the condenser 3, The high-temperature and high-pressure gaseous refrigerant sent is cooled and liquefied. Then, the air that has passed through the condenser 3 and has reached a high temperature is discharged from the exhaust outlet 15.

  1 b is a side plate of the frame body 1, 14 is an air intake port provided in the side plate 1 b of the frame body 1, 17 is a cold air outlet port provided in front of the frame body 1, and 18 is an air blown air that has passed through the evaporator 4. A cold air fan blown out from the outlet 17, the refrigerant liquefied by the condenser 3 is sent to the evaporator 4 to be vaporized, and the air sent to the evaporator 4 by the cold air fan 18 is cooled by the heat of vaporization and becomes cold air. Blow out from 17.

  Reference numeral 19 is a drain receiver disposed below the evaporator 4, 5 is a drain tank disposed on the lower base 1 a in the frame 1, and 20 is a drain pipe connecting the drain receiver 19 and the drain tank 5. Moisture contained in the cooled air is condensed on the surface of the evaporator 4 to be drained and dropped onto the drain receiver 19. The drain water in the drain receiver 19 is collected in the drain tank 5 through the drain pipe 20. Reference numeral 1c denotes a tank outlet located on the side of the drain tank 5. The tank outlet 1c can be opened to take out the drain tank 5 from the inside of the frame 1 and discard the water accumulated in the drain tank 5.

  8 is a partition plate that divides the inside of the frame 1 formed on the base 1 a of the frame 1, and the partition plate 8 is located between the compressor 2 and the drain tank 5, and 6 is this partition plate 8. An attachment portion 7 of the compressor 2 formed by being divided by the reference numeral 7 is a tank storage portion for storing the drain tank 5.

  A tank lever 21 is rotatably attached to the upper part of the drain tank 5, and 21 a is a float of the tank lever 21, which is looked into the drain tank 5 from the upper opening of the drain tank 5. When the tank becomes full, the tank lever 21 rotates. Reference numeral 22 denotes a switch provided at a position where it abuts on the tank lever 21 when the drain tank 5 is attached to the tank storage section 7, 11 denotes a control board for controlling the operation of the air conditioner, and the switch 22 is connected to the control board 11. When the switch 22 is closed, the compressor 2 is operated, and when the switch 22 is open, the compressor 2 is stopped.

  When the drain tank 5 is mounted in the tank housing portion 7 in a state where the drain tank 5 is not full due to the drain water, the switch 22 is pushed by the tank lever 21 to be closed, and the compressor 2 is energized. Drive. Further, since the switch 22 is opened when the drain tank 5 is not attached and when the tank is full, the operation of the air conditioner is stopped.

  By the way, since the air passage and the cold air outlet 17 through which the cold air that has passed through the evaporator 4 in the frame 1 flows are at a low temperature, the indoor air may be touched and condensed when used in a high humidity state. Water droplets may adhere to the inside of 1. In addition, this type of air conditioner can be used by moving it to an arbitrary place, but if it falls while moving, the drain water stored in the drain receiver 19 and the drain tank 5 is spilled and the inside of the frame 1 is There is a risk of flooding. For this reason, the control board 11 of the air conditioner which is weak to water needs a strict waterproof measure.

  The present invention proposes an air conditioner that is very easy to handle by devising the mounting structure of the control board 11, and 8a is a partition wall formed on the side of the mounting portion 6 of the compressor 2 and the tank housing portion 7. , 9 is an interval formed between the partition wall 8a and the side plate 1b of the frame body 1, and the partition wall 8a is formed integrally with the partition plate 8 attached to the base 1a of the frame body 1.

  Reference numeral 10 denotes a control board chamber formed in a partition wall 8a located on the side of the mounting portion 6 of the compressor 2, and the control board chamber 10 is constituted by a recess formed from the partition wall 8a toward the mounting portion 6 side. . Reference numeral 10a denotes an attachment piece formed in the control board chamber 10, and the control board 11 attached to the control board chamber 10 is fixed by the attachment piece 10a.

  Reference numeral 8b denotes a partition frame body that surrounds the periphery of the control substrate chamber 10 formed in the partition wall 8a. The partition frame body 8b is in close contact with the side plate 1b of the frame body 1, and the control substrate chamber 10 is independent of the interval 9. A closed space is formed. The partition frame 8b is configured by attaching a cylindrical packing to the partition wall 8a or forming a cylindrical rib extending from the partition wall 8a in the direction of the side plate 1b of the frame body 1 on the end surface of the tip. It may be configured by attaching a packing.

  In this way, by forming a sealed space in the control substrate chamber 10 in which the control substrate 11 is arranged, even if drain water flows into the gap 9 and flows through the partition wall 8a, the drain water is supplied to the control substrate chamber 10. The control board chamber 10 is located in the lower part of the frame body 1 away from the evaporator 4, so there is no risk of condensation due to cold air. .

  Further, since the control board chamber 10 and the partition frame 8b are opened on the side plate 1b side of the frame 1, the control board 11 disposed in the control board chamber 10 is exposed when the side plate 1b is removed, and the control board chamber 10 and the partition frame 8b are simplified. The control board 11 can be attached and detached by operation, and maintenance can be easily performed.

  In addition, it is desirable to arrange the operation part of the air conditioner on the upper part of the frame body 1 from the viewpoint of operability. Conventionally, since the control board 11 is arranged on the upper part in the frame body 1, there is a component on the upper part of the frame body. Space for mounting is required, and the mounting position of each component is limited, so that the arrangement efficiency is poor and the frame shape is also large. On the other hand, the mounting portion 6 in the frame 1 has a sufficient space just by arranging the refrigerant pipe in addition to the compressor 2, and the control board chamber 10 is formed in a space where the mounting portion 6 is free. Therefore, the space in the frame 1 can be used effectively, and the components arranged on the upper portion of the frame 1 can be arranged efficiently without being limited by the mounting position, and the frame can be made compact.

  A drain drain 12 is provided at the lower part of the frame 1 and communicates the gap 9 and the outside of the frame 1. If water flows into the gap 9, the water flows into the frame 1 through the side plate 1 b and the partition wall 8 a. However, since the water flowing to the lower part of the frame body 1 is drained from the drain outlet 12, it is possible to prevent water from collecting in the lower part of the frame body 1. It was possible to do.

  A communication hole 13 is provided in the partition wall 8a and communicates the tank housing portion 7 and the interval 9. When the air conditioner is overturned, water in the drain tank 5 and the drain receiver 19 is spilled and the frame 1 In this invention, when the side on which the control board 11 is disposed falls and falls down, the water spilled from the drain tank 5 flows into the gap 9 from the communication hole 13 and flows from the drain outlet 12 to the frame 1. It is drained to the outside. At this time, since the drain outlet 12 is provided at the corners of the side surface and the lower surface of the frame 1, the drain drain port 12 on the bottom side drains from the drain outlet 12 on the bottom side even if the drain outlet 12 on the side surface is blocked by the floor. It is possible to prevent water from accumulating in the frame 1.

  If water spilled into the frame body 1 remains in the frame body 1 when the air conditioner falls, a large amount of water will fall in the lower part of the frame body 1 at a time when the air conditioner is lifted to return to the original state. However, the water spilled when the air conditioner falls like this invention is drained out of the frame body 1 so that a large amount of water is contained in the frame body 1. Therefore, it is possible to prevent water from entering the control board chamber 10, so that there is no possibility that the control board 11 may be splashed with water and cause a failure.

  In the present invention, when the control board 11 is attached to the control board chamber 10, the control board 11 is located behind the partition wall 8 a and the lower end of the control board 11 is located higher than the bottom surface of the control board chamber 10. Provided. When the water spilled when the air conditioner falls, the control board chamber 10 is flooded, and the control board 11 is positioned higher than the partition wall 8a in the overturned state, so that the partition frame body 8b and the frame body 1 Even if water is immersed from between the side plates 1b, the control board 11 does not get water. In addition, since water flows to the bottom surface of the control board chamber 10 when the air conditioner is raised, it is possible to prevent water from being applied to the control board 11 attached at a position higher than the bottom surface of the control board chamber 10.

  Further, as shown in FIG. 2, the evaporator 4 and the partition wall 8a are disposed so as to face the side plates 1b on the opposite side in the frame 1, so that the drain receiver 19 and the drain pipe 20 of the evaporator 4 are also separated from the partition wall 8a. Therefore, the drain water generated by dew condensation by the evaporator 4 does not flow toward the partition wall 8a or the control board chamber 10, and the control board 11 can be reliably waterproofed. It became a thing.

  If the communication hole 13 is provided at a position away from the partition plate 8 as shown in FIG. 3, when the back side of the frame body 1 is turned downward when the air conditioner falls, it spills into the tank storage section 7. Since water does not immediately flow from the communication hole 13 to the interval 9, it is possible to prevent water from flowing toward the control substrate chamber 10. If the drain outlet 12 is also arranged on the side where the control board chamber 10 is provided, the control board chamber 10 in the frame 1 can be used even when water flows toward the control board chamber 10 when the air conditioner falls. The water can be drained from the drain outlet 12 without collecting water around.

It is a longitudinal cross-sectional view of the air conditioner which shows the Example of this invention. It is principal part sectional drawing which shows the structure of the control substrate chamber of the Example of this invention. It is a transverse cross section of the important section showing the example of this invention. It is a fragmentary sectional view which shows the components structure inside the frame of the Example of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Frame body 1a Base 1b Side plate 2 Compressor 3 Capacitor 4 Evaporator 5 Drain tank 6 Mounting part 7 Tank storage part 8 Partition plate 8a Partition wall 8b Partition frame body 9 Space | interval 10 Control board room 11 Control board 12 Drain drain port 13 Communication hole 14 Air intake

Claims (5)

A compressor 2 that compresses the refrigerant into the inside of the frame 1, a condenser 3 to which a high-temperature and high-pressure refrigerant gas is sent, and an evaporator 4 to which the refrigerant liquefied by the condenser 3 is sent via a decompressor. Constituting a refrigeration cycle in which the evaporated refrigerant is returned to the compressor 1,
In an air conditioner having a drain tank 5 that collects drain water generated from air passing through an evaporator 4 at the lower part in the frame 1,
A partition plate 8 is provided on the base 1a of the frame body 1 to divide the inside of the frame body 1 and form a mounting portion 6 and a tank storage portion 7 of the compressor 2.
A part of the partition plate 8 is also located on the side of the mounting portion 6 of the compressor 2 and the tank housing portion 7 and constitutes a partition wall 8a with a gap 9 between the side plate 1b of the frame body 1,
A control board chamber 10 is formed in the partition wall 8a by a recess formed toward the mounting section 6 side of the compressor 2, and a control board 11 of an air conditioner is attached to the control board chamber 10;
In addition, a partition frame 8b that is in close contact with the side plate 1b of the frame 1 is formed in the partition wall 8a around the control substrate chamber 10, and the control substrate chamber 10 is independent of the interval 9 by the partition frame 8b. As well as
An air conditioner characterized in that when the side plate 1b of the frame body 1 is removed, the control board chamber 10 opens and the control board 11 can be attached and detached.   The air conditioner according to claim 1, wherein a drain discharge port (12) communicating with the gap (9) and the outside of the frame body (1) is formed at a lower part of the side plate (1b) of the frame body (1). The drain outlet 12 opens to a corner portion between the side surface and the lower surface of the side plate 1b,
The partition wall 8a is formed with a communication hole 13 that communicates between the tank housing portion 7 and the gap 9.
The air conditioner according to claim 1, wherein drain water flowing out of the drain tank 5 when the air conditioner falls is led from the communication hole 13 to the interval 9 and drained from the drain drain port 12 to the outside of the frame 1.   The control board 11 arranged in the control board chamber 10 is located inside the partition wall 8a, and is attached so that the lower end of the control board 11 is located higher than the bottom surface of the control board chamber 10. Item 1. An air conditioner according to item 1. The air intake 14 is provided in the side plate 1b opposite to the side plate 1b opposite to the partition wall 8a, and the evaporator 4 is disposed in the frame 1 opposite to the air intake 14. 1. The air conditioner according to 1.

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