JP5097486B2 - Air conditioner - Google Patents

Description

  The present invention relates to an air conditioner that generates power by driving a compressor with a gas engine and driving a generator with the gas engine.

2. Description of the Related Art Conventionally, an air conditioner that includes a gas engine and a generator driven by the gas engine and generates power by the generator during air conditioning operation is known (for example, see Patent Document 1). In addition, a gas engine, a compressor driven by the gas engine, and a heat exchanger connected to the compressor are provided, and the heat exchanger is disposed in a heat exchange chamber provided in the upper stage of the air conditioner body. In addition, there is known an air conditioner in which a gas engine and a compressor are arranged in a machine room provided in a lower stage of the air conditioner body (see, for example, Patent Document 2).
Japanese Patent No. 3177339 Japanese Patent No. 3732991

  In such an air conditioner, an electrical box in which electric control parts for controlling the air conditioner are housed and an inverter box in which an inverter device for controlling the generated power is housed are provided separately. There is a need. And since electrical components with large calorific values, such as power IC, are stored in these electrical equipment boxes and inverter boxes, high maintainability is required.

  This invention is made | formed in view of the situation mentioned above, and aims at providing the air conditioner which improved the maintainability.

In order to achieve the above object, the present invention provides an air conditioner main body divided into upper and lower stages, a heat exchange chamber in which a heat exchanger is arranged in the upper stage, and a gas engine and a gas engine in the lower stage. In an air conditioner provided with a machine room in which a driven compressor and a generator driven by the gas engine are arranged, on the front side of the machine room and on the side where the compressor is located A control box containing electronic parts for controlling the compressor, and an inverter box containing electronic parts for controlling the generator are arranged on the side where the generator is located, A control box side panel for closing a front panel for closing the front of the machine room, a front of the side where the control box is located, and an inverter box for closing the front of the side where the inverter box is located Dividing the panel, in, provided with the heat exchange chamber, a partition plate for partitioning said machine room, a pair of vents for air to pass into the heat exchange chamber from said machine room 1 of the vent The control box is disposed below the mouth, the inverter box is disposed below the other vents, and the ventilation holes formed on the upper surface of each box are located below the corresponding vents, Air intake for taking outdoor air into the control box and the inverter box at a position corresponding to the lower part of the control box on the control box side panel and a position corresponding to the lower part of the inverter box on the inverter box side panel Holes are formed, and outdoor air is taken into each box through the air intake holes formed in the panels, and then the ventilation holes. Through each said vent, characterized in that a configuration that is discharged to the heat exchange chamber.

Here, in the air conditioner of the above invention, a support column may be provided in the center of the front surface of the machine room, and the control box and the inverter box may be arranged on both sides of the support column.
In the air conditioner of the above invention, an electric valve incorporated in a refrigeration cycle, which is controlled by electronic components housed in the control box, is disposed on the side where the control box is disposed in the machine room. May be.

  According to the present invention, in the machine room, a control box containing electronic parts for controlling the compressor is disposed in the vicinity of the compressor, and the generator is controlled in the vicinity of the generator. Since the inverter box containing electronic parts is arranged, the physical distance between the control box and inverter box and the compressor and generator is shortened, and the wiring between the box and compressor and generator is simple. And maintainability can be improved. Furthermore, since both the control box and the inverter box are arranged in the machine room, for example, when it is necessary to maintain the inverter box and the generator connected to the inverter box at the same time, the exterior provided in the heat exchange room By removing the exterior panel provided in the machine room without removing the panel, both the inverter box and the generator can be exposed and the maintenance of these can be started, simplifying the work and taking the work Time can be shortened and maintenance can be improved.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. The outdoor unit (air conditioner) described in the present embodiment drives a compressor and a generator by a gas engine, converts electric power generated by the generator by an inverter, and the outdoor unit and other equipment. It is used for a gas heat pump (GHP) type air conditioner that can be supplied to

FIG. 1 is a front view of an outdoor unit 1 (air conditioner) according to an embodiment of the present invention. FIG. 2 is a perspective view of the outdoor unit 1 in a state where each panel constituting the side surface of the outdoor unit 1 is removed. 3 is a front view of the outdoor unit 1, and FIG. 4 is a front view of the outdoor unit 1 with the control box 14 removed from the outdoor unit 1 of FIG. 5 is a rear view of the outdoor unit 1, FIG. 6 is a left side view, and FIG. 7 is a right side view.
In addition, FIG.4, FIG6 and FIG.7 is the outdoor unit 1 of the state which attached the heat exchanger 9 mentioned later.

  As shown in FIG. 1, the outdoor unit 1 is formed in a substantially rectangular parallelepiped shape, and includes an air conditioner main body 2 that constitutes an outer portion of the outdoor unit 1. The air conditioner main body 2 includes an air conditioner main body 2. 2 and a plurality of panels that are fixed to the frame 3 and that constitute the side surface of the outdoor unit 1.

As shown in FIG. 2, the frame 3 includes a horizontal frame 3 a provided in a substantially central position in the height direction of the outdoor unit 1 and extending in the horizontal direction. The horizontal frame 3 a includes a partition extending in a substantially horizontal direction. The plate 5 is fixed, and the interior of the air conditioner body 2 is partitioned into upper and lower stages by the partition plate 5.
A heat exchange chamber 50 in which a heat exchanger 9 (FIG. 1) is arranged is formed in the upper stage of the air conditioner main body 2 partitioned by the partition plate 5, and a gas engine 11, which will be described later, and power generation are formed in the lower stage. A machine room 60 in which the machine 12 and the compressor 13 are arranged is formed. The partition plate 5 partitions the two chambers without any gap so that the rainwater or the like does not enter the machine chamber 60 even when rainwater or the like enters the heat exchange chamber 50 via the blower 8 or the like described later.
Hereinafter, configurations of the heat exchange chamber 50 and the machine chamber 60 will be described in detail.

First, the heat exchange chamber 50 will be described.
The heat exchange chamber 50 is a room for exchanging heat between air and the heat exchanger 9 (FIG. 1), and includes a heat exchanger 9 and a blower 8 for taking in air from the outside. As shown in FIG. 2, the blower 8 is arranged side by side on the upper surface of the heat exchange chamber 50, and takes in air outside the outdoor unit 1 into the heat exchange chamber 50 through the heat exchanger 9. After the heat exchange between the heat exchanger 9 and the air, the air is discharged from the heat exchange chamber 50.
Further, the partition plate 5 constituting the lower surface of the heat exchange chamber 50 has two vent holes 6 connecting the heat exchange chamber 50 and the machine room 60 in the width direction of the outdoor unit 1 as shown in FIGS. Are provided at intervals, and the air can move from the machine chamber 60 to the heat exchange chamber 50 through the vent 6. Due to this configuration, when the blower 8 described above is driven, the air on the machine room 60 side is sucked into the heat exchange chamber 50 through the vent 6, so that the machine room 60 moves toward the heat exchange room 50. Air flow is generated.
Further, the vent 6 is provided with a roof portion 6a so that rainwater or the like does not enter the machine room 60 from the heat exchange room 50 side, and the air on the machine room 60 side is indicated by an arrow 7 shown in FIG. It is the structure which moves to the heat exchange chamber 50 through this path | route.

Next, the machine room 60 will be described.
FIG. 8 is a view of the machine room 60 as viewed from above. In FIG. 8, the lower side is the front side.
As shown in FIGS. 2 to 4, a vertical frame 3 b is provided at the center of the front surface of the machine room 60. The vertical frame 3 b has an upper end fixed to the approximate center of the horizontal frame 3 a and extends in the vertical direction. The vertical frame 3b has a function of improving the rigidity of the air conditioner main body 2, and also has a function as a support member that firmly supports the control box 14 and the inverter box 15 described later. In the following description, as shown in FIGS. 2 to 5, a space formed inside the machine room 60 on the left side of the front with the vertical frame 3b as a boundary is referred to as a machine room left part 60L. The space formed on the right side of the front view is referred to as a machine room right part 60R (note that since FIG. 5 is a rear view, a machine room left part 60L is formed on the right side in FIG. 5), a machine room right part 60R is formed on the left side.

  As shown in FIGS. 1 and 2, the front panel 4 that closes the front surface of the machine room 60 is detachably attached to the front surface of the machine room 60 via screws or the like. As shown in FIGS. 1 and 2, the front panel 4 has a control box side panel 4L that is attached to the frame 3 in a mode that covers the front surface of the machine room left portion 60L and a front surface of the machine room right portion 60R. The inverter box side panel 4R attached to the frame 3 is divided. Details of the control box side panel 4L and the inverter box side panel 4R will be described later.

As shown in FIGS. 5 and 8, an engine support base 40 for supporting the gas engine 11 is erected on the lower surface of the machine room 60 inside the machine room 60. The gas engine 11 is attached via a buffer member 41 including a member having elasticity such as rubber. The buffer member 41 has a function of absorbing vibration generated when the gas engine 11 is driven.
The gas engine 11 is cooled by cooling water. A cooling water passage for cooling the gas engine 11 is provided with a radiator (not shown) for radiating cooling water and cooling water. A cooling water pump 23 to be circulated is provided. As shown in FIGS. 3, 4, and 7, the cooling water pump 23 is provided above the oil tank 24 that stores oil to be supplied to the gas engine 11 on the right front side of the right portion 60 </ b> R of the machine room. . Specifically, as shown in FIGS. 2 and 7, a receiving pan 42 is placed and fixed on the upper surface of the oil tank 24, and the cooling water pump 23 is fixed above the receiving pan 42. As described above, in the present embodiment, the cooling water pump 23 is disposed above the oil tank 24 so that the space above the oil tank 24 is utilized to effectively utilize the space in the machine room 60, and will be described later. A space for arranging the inverter box 15 is secured.
Further, as shown in FIGS. 5 and 8, the gas engine 11 attached to the engine support base 40 is configured to be positioned at the approximate center in the width direction and the vertical direction of the machine room 60. Inside, the compressor 13 and the generator 12 to be described later can be efficiently arranged on the left and right of the gas engine 11.

As shown in FIGS. 4, 5, and 8, an engine-side pulley 43 is provided at the front end of the left drive shaft 11 a that protrudes substantially horizontally from the gas engine 11 to the front left direction. , A transmission belt 16 for power transmission is attached, and on this transmission belt 16, a compressor side pulley provided at the tip of each driven shaft of two compressors 13 (see also FIG. 6). 47 is attached. Thereby, the rotational power of the gas engine 11 is transmitted to the compressor 13 via the transmission belt 16, and the compressor 13 is driven. The compressor 13 has a clutch mechanism (not shown) and is connected to the gas engine 11 through the clutch mechanism, and drives one of the two compressors 13 according to the air conditioning load. Or drive both. As shown in FIGS. 4 and 5, the two compressors 13 are provided below the left front part of the gas engine 11 in the left part 60 </ b> L of the machine room.
Further, in the machine room right part 60R, on the left side of the compressor 13, as shown in FIG. 6, it is connected to a refrigerant pipe forming a refrigeration cycle, and the introduced refrigerant is decompressed to generate a low-temperature and low-pressure refrigerant. An expansion valve 45 is arranged. Further, as shown in FIGS. 4 and 8, a four-way valve 46 for switching the flow of the refrigerant flowing through the refrigerant pipe is disposed on the left side of the front of the engine side pulley 43 of the gas engine 11. In addition to the expansion valve 45 and the four-way valve 46, as shown in FIG. 6, a liquid valve 53, a refrigerant gas closing valve 54, and an unloading bypass valve 52 are provided in the right part 60R of the machine room. . The operation of the motorized valves such as the expansion valve 45, the four-way valve 46, the bypass valve 52, the refrigerant gas closing valve 54, and the liquid valve 53 is controlled by electronic components such as a control circuit housed in the control box 14 described later. (This will be described in detail later). In addition, in the right part 60R of the machine room, as shown in FIG. 6, there are devices such as an accumulator 17, an oil separator 18, an air cleaner 19 (FIG. 8), an intake box 20, a terminal block 21 (FIG. 8) and a gas box 49. Is provided.

  On the other hand, the generator 12 is connected to the right end of the gas engine 11 in the machine room right part 60R. The generator 12 is a device that generates electricity in response to the driving of the gas engine 11, and the generated electric power is output to an inverter device such as a grid-connected inverter housed in an inverter box 15 described later. After being converted into electric power of an appropriate frequency by the above, it is supplied to the load. A generator guard 12 a is attached to the generator 12 so as to cover the generator 12, thereby preventing the generator 12 from contacting each device provided in the outdoor unit 1. In addition to the gas engine 11, the machine room right part 60 </ b> R is provided with devices such as an exhaust muffler 22 and a neutralizing device 55 as shown in FIG. 7.

By the way, conventionally, control for controlling the motor 13 such as the compressor 13 provided in the left part 60L of the machine room, the expansion valve 45, the four-way valve 46, the bypass valve 52, the refrigerant gas closing valve 54, the liquid valve 53, and the like. The control box 14 that accommodates electronic components such as circuits is provided in the heat exchange chamber 50. This is because the air taken into the heat exchange chamber 50 by the blower 8 is used to air-cool the electronic components housed in the control box 14. For the same reason, the heat exchange chamber 50 is also provided with an electronic box for controlling the generator 12 and an inverter box 15 that houses an inverter device that performs AC / DC conversion and outputs the electric power generated by the generator 12. It was done. However, in this case, the physical distances between the control box 14 and the inverter box 15 that are control members and the compressor 13, the electric valve, and the generator 12 that are controlled members are increased, and these control members and There is a problem that the wiring between the controlled member is complicated. Further, for example, when it is desired to maintain the control box 14 and the compressor 13 at the same time, it is necessary to remove the panel provided in the heat exchange chamber 50 and the panel provided in the machine room 60 at the same time. As a result, there was a problem of poor maintainability.
In view of this, in this embodiment, the control box 14 and the inverter box 15 are arranged in the outdoor unit 1 as follows to improve the maintainability.

That is, in this embodiment, as shown in FIG.2 and FIG.3, the control box 14 is arrange | positioned ahead of the location where the compressor 13 is arrange | positioned in the front side of the machine room left part 60L of the machine room 60. FIG. Yes. Thus, the control box 14 and the motor 13 such as the compressor 13 and the expansion valve 45, the four-way valve 46, the bypass valve 52, the refrigerant gas closing valve 54, and the liquid valve 53, which are members controlled by the control box 14, are provided. Therefore, the distance between the control box 14 and these devices is reduced, the wiring and the like are shortened and simplified, and maintenance is improved.
Further, for example, even when it is necessary to maintain the control box 14 and the compressor 13 at the same time, the control box 14 and the compressor 13 can be accessed simultaneously by removing the control box side panel 4L. Therefore, it is not necessary to remove the panel of the heat exchange chamber 50, the work can be simplified, and maintainability can be improved.
Furthermore, the control box 14 is provided not at a relatively high place such as the heat exchange chamber 50 but at a relatively low place such as the machine room 60 and at an easily accessible place such as the front surface of the machine room 60. For this reason, an operator or the like can easily access the control box 14, can improve the efficiency and ease of work, and can improve the maintainability.

Similarly, in the present embodiment, as shown in FIGS. 2 and 3, the inverter box 15 is arranged in front of the place where the generator 12 is arranged on the front side of the machine room right part 60 </ b> R of the machine room 60. ing. Thereby, the inverter box 15 and the generator 12 which is a member controlled by the inverter box 15 are arranged in the same machine room right part 60R, and the distance between the inverter box 15 and the generator 12 is set. Is shortened, wiring is shortened and simplified, and maintenance is improved.
Furthermore, for example, even when it is necessary to maintain the inverter box 15 and the generator 12 at the same time, the inverter box 15 and the generator 12 can be accessed simultaneously by removing the inverter box side panel 4R. Therefore, it is not necessary to remove the panel of the heat exchange chamber 50, the work can be simplified, and maintainability can be improved.
Further, the inverter box 15 is provided not at a relatively high place such as the heat exchange chamber 50 but at a relatively low place such as the machine room 60 and at an easily accessible place such as the front surface of the machine room 60. For this reason, an operator or the like can easily access the inverter box 15, can improve the efficiency and ease of work, and can improve the maintainability.

  Here, since both the control box 14 and the inverter box 15 contain precision devices such as electronic devices, the control box 14 and the inverter box 15 are devices that require a relatively large number of maintenance. In addition, since the control box 14 and the inverter box 15 have different control targets, maintenance is performed separately. In view of this, in the present embodiment, as shown in FIGS. 1 and 2, the front panel 4 that covers the front surface of the machine room 60 closes the front surface of the machine room left portion 60 </ b> L where the control box 14 is disposed. It is divided into a panel 4L and an inverter box side panel 4R that closes the front surface of the right part 60R of the machine room in which the inverter box 15 is arranged. Thereby, for example, when only the control box 14 is maintained, it is possible to remove only the control box side panel 4L and expose the control box 14 so as to be accessible. For this reason, compared with the case where the front panel 4 of the machine room 60 is not divided, the control box 14 and the inverter box 15 can be easily accessed.

In the present embodiment, as shown in FIGS. 2, 3 and 8, the control box 14 is screwed to the horizontal frame 3a in a state where the position in the width direction is positioned on the vertical frame 3b (support). And is firmly attached to the outdoor unit 1. Specifically, as shown in FIG. 8, the right side surface of the control box 14 abuts on the left side surface of the vertical frame 3 b, thereby positioning the position of the control box 14 in the width direction and the control box 14. The connection member 56 fixed to the upper surface by screws is screwed to the horizontal frame 3 a, whereby the control box 14 and the horizontal frame 3 a are fixed via the connection members 56.
On the other hand, as shown in FIGS. 2, 3 and 8, the inverter box 15 is firmly attached to the outdoor unit 1 by being fixed to not only the horizontal frame 3a but also the vertical frame 3b via screws. Yes. Specifically, the first connecting member 57 is screwed to the upper surface of the inverter box 15, and the horizontal frame 3 a is screwed to the first connecting member 57, whereby the inverter box 15 and the horizontal frame are fixed. 3 a is fixed via a first connecting member 57. Further, in the vicinity of the vertical frame 3b on the upper surface of the inverter box 15, a second connecting member 58 is fixed by screwing as shown in FIGS. The inverter box 15 and the vertical frame 3b are fixed via the second connecting member 58 by fixing the frame 3b by screwing.
Moreover, the control box 14 and the inverter box 15 can be easily removed from the air conditioner body 2 by releasing the screwing to the horizontal frame 3a and the vertical frame 3b. Therefore, for example, maintenance of the gas engine 11 disposed on the back side of the control box 14 and the inverter box 15 can be performed smoothly.

Moreover, in this embodiment, in order to cool the electronic component inside the control box 14 and the inverter box 15 provided in the machine room 60, it has the following structures.
FIG. 9 is a perspective view showing the inverter box 15 as a single unit.
The inverter box 15 includes an outer box 25 formed in a box shape whose front side is open, and a substrate 26 on which a power IC is mounted is disposed on the lower side of the outer box 25. A capacitor 27, a relay 28, and the like are disposed on the upper side of the substrate 26. In addition, on the upper surface of the outer box 25, three ventilation holes 25a for discharging air heated by a heating element such as a power IC are formed at intervals in the width direction.
The opening on the front side of the inverter box 15 is not closed as the outer box 25 alone, and when the inverter box side panel 4R of the outdoor unit 1 described above is attached to the outdoor unit 1, The inverter box side panel 4R is closed together. That is, the inverter box side panel 4 </ b> R is also used as a member for closing the front surface of the inverter box 15 and the front surface of the outdoor unit 1.

  A packing 29 is attached to the edge of the front opening of the outer box 25 over the entire circumference of the edge. The packing 29 has elasticity, and for example, a sponge-like material or a rubber material is used. The packing 29 is pressed in the depth direction of the outdoor unit 1 by the inverter box side panel 4R in a state where the inverter box side panel 4R is attached to the outdoor unit 1. When the packing 29 is pressed as described above, the air in the outer box 25 is kept airtight by the packing 29.

The position of the inverter box 15 in the front-rear direction shown in FIG. 8 is such that the front end of the packing 29 is the front end of the outdoor unit 1 so that the packing 29 is pressed by the inverter box side panel 4R as described above. It arrange | positions in the aspect which protrudes ahead rather than a part (specifically front side edge part of the flame | frame 3 to which the inverter box side panel 4R is attached).
Further, the position of the inverter box 15 in the width direction shown in FIGS. 2, 3, and 8 is such that the ventilation hole 25 a of the outer box 25 is vented to the right side of the partition plate 5 when the attached inverter box 15 is viewed from the front. It arrange | positions so that it may be located under the opening | mouth 6. FIG. As a result, the air exiting from the ventilation hole 25a flows through the right vent 6 to the heat exchange chamber 50 efficiently.

  On the other hand, the control box 14 has the same structure as the inverter box 15. That is, the outer box 30 of the control box 14 is formed in a box shape whose front side is open as shown in FIGS. 2 and 3, and the upper surface of the outer box 30 has air as shown in FIG. 8. Three ventilation holes 30a are formed at intervals in the width direction. Further, a packing 29 is attached to the front opening edge similarly to the inverter box 15, and the depth of the outdoor unit 1 is controlled by the control box side panel 4L when the control box side panel 4L is attached to the outdoor unit 1. It is pressed in the direction. When the packing 29 is pressed in this way, the air in the outer box 30 is kept airtight by the packing 29.

The position of the control box 14 in the front-rear direction shown in FIG. 8 is such that the front end of the packing 29 is the front end (details) of the outdoor unit 1 so that the packing 29 is pressed by the control box side panel 4L as described above. Is arranged in such a manner as to protrude forward from the front end portion of the frame 3 to which the control box side panel 4L is attached.
2, 3, and 8, the position of the control box 14 in the width direction is such that the ventilation hole 30 a of the outer box 30 is vented to the left of the partition plate 5 when the attached control box 14 is viewed from the front. Arranged to be below the mouth 6. As a result, the air exiting from the ventilation hole 30a efficiently flows to the heat exchange chamber 50 through the left vent 6.

FIG. 10A is a front view showing the inverter box side panel 4R alone, and FIG. 10B is a rear view thereof. FIG. 11 is a cross-sectional view taken along line VII-VII in FIG.
As shown in FIG. 10A, the control box side panel 4L is formed with an air intake hole 31 (opening) formed in a horizontally long shape. The air intake hole 31 is formed at a position corresponding to the front opening of the inverter box 15 in a state where the control box side panel 4L is attached to the outdoor unit 1. More specifically, the air intake hole 31 is formed to have a length substantially equal to the length in the width direction of the front opening of the inverter box 15, and outdoor air taken in from the air intake hole 31 is transferred to the inverter box 15. It is formed so as to be sent over the entire region in the width direction. The air intake hole 31 is formed at a position below the front opening of the inverter box 15, and the taken outdoor air is sent over the entire area in the height direction of the inverter box 15. It is arranged to be washed away.

  As shown in FIG. 10B and FIG. 11, an air guide plate 32 is provided on the back side of the inverter box side panel 4 </ b> R (the side facing the inside of the inverter box 15) and in the air intake hole 31. It has been. The air guide plate 32 covers the air intake hole 31 from the back side, forms an opening 37 above the air intake hole 31, and guides the outdoor air 34 taken in from the air intake hole 31 to the opening 37. Then, the air is sent upward from the opening 37 (see the arrow of the outdoor air 34 shown in FIG. 11). That is, by providing the air guide plate 32, the back side surface of the inverter box side panel 4R and the air guide plate 32 form a pocket portion 33 that is open on the upper side. Opening 37 is formed.

The opening 37 that is the upper end of the pocket 33 is located above the upper end 31 a of the air intake hole 31, so that rainwater entering from the air intake hole 31 does not enter the inside of the inverter box 15 from the opening 37. It has become.
Further, as shown in FIG. 11, the pocket portion 33 is provided with a sponge 35 (filter) for absorbing moisture contained in the outdoor air. The sponge 35 is disposed above the upper end 31 a of the air intake hole 31 so that the sponge 35 cannot be seen from the air intake hole 31. The lower portion of the sponge 35 is supported by a support portion 36 formed on the air guide plate 32 so that the sponge 35 contains moisture and does not fall by its own weight.

  On the other hand, the control box side panel 4L covering the front surface of the control box 14 is also formed with an air intake hole 38 at a position corresponding to the front opening of the control box 14, and a pocket portion is formed on the back side of the control box side panel 4L. Yes. These configurations are the same as those of the inverter box side panel 4R, and detailed description thereof is omitted.

As described above, in the present embodiment, a control box in which electronic parts for controlling the compressor 13 are housed in the left side 60L of the machine room on the front side of the machine room 60 where the compressor 13 is located. 14 and an inverter box 15 containing electronic parts for controlling the generator 12 is arranged in the right part 60R of the machine room where the generator 12 is located. For this reason, the distance between the control box 14 and the motor-operated valves such as the compressor 13 and the expansion valve 45, the four-way valve 46, the bypass valve 52, the refrigerant gas closing valve 54, and the liquid valve 53 controlled by the control box 14 is reduced. In addition, wiring and the like are shortened and simplified, and maintenance is improved. Similarly, the distance between the inverter box 15 and the generator 12 controlled by the inverter box 15 is shortened, wiring and the like are shortened and simplified, and maintenance is improved.
For example, even when it is necessary to maintain the control box 14 and the compressor 13 simultaneously, the control box 14 and the compressor 13 can be accessed simultaneously by removing the control box side panel 4L. Therefore, it is not necessary to remove the panel of the heat exchange chamber 50, the work can be simplified, and maintainability can be improved.
Further, according to the present embodiment, the front panel 4 that closes the front surface of the machine room 60, the control box side panel 4 </ b> L for closing the front of the machine room left part 60 </ b> L where the control box 14 is located, and the inverter box 15 The inverter box side panel 4R for closing the front of the machine room right portion 60R is divided.
Therefore, for example, when only the control box 14 is maintained, only the control box side panel 4L can be removed and the control box 14 can be exposed. Thereby, compared with the case where the front panel 4 of the machine room 60 is not divided | segmented, the control box 14 and the inverter box 15 can be accessed easily.

Further, according to the present embodiment, the air intake hole 38 is formed in the inverter box side panel 4R, and the outdoor air taken in from the air intake hole 38 can be sent into the inverter box 15, and the inverter box 15 can be cooled efficiently.
Further, the air intake hole 38 is formed in the width direction of the inverter box 15 and disposed at a position corresponding to the lower side of the front opening of the inverter box 15, so that the entire inside of the inverter box 15 is covered. It can be cooled efficiently.

  Further, a ventilation hole 25a is provided on the upper surface of the inverter box 15, and the ventilation hole 6 of the partition plate 5 is provided above the ventilation hole 25a. Since the air can be sent to the heat exchange chamber 50 through the port 6, the air exiting from the ventilation hole 25 a does not stay in the machine chamber 60. Therefore, the inside of the inverter box 15 can be efficiently cooled.

  Further, a pocket portion 33 is provided in the air intake hole 38, and a sponge 35 is provided in the pocket portion 33, so that moisture of outdoor air entering from the air intake hole 38 can be absorbed by the sponge 35. It is possible to prevent moisture such as rainwater from entering the water. As a result, it is difficult for water to splash on the components inside the inverter box 15, and the life of each component can be prevented from being shortened.

  Furthermore, since the inverter box 15 is disposed on the front side of the machine room 60, the inverter box 15 and the inverter box 15 can be removed by simply removing the inverter box side panel 4R without removing the panel provided in the heat exchange chamber 50. The connected generator 12 and gas engine 11 can be maintained together. Therefore, maintenance work can be easily performed.

  Further, when the packing 29 is attached to the front opening edge of the inverter box 15 and the inverter box side panel 4R is closed, the inverter box side panel 4R covers the front opening of the inverter box 15 while pressing the packing 29. Therefore, the panel that closes the front opening of the inverter box 15 can be shared by the inverter box-side panel 4R that closes the front side of the outdoor unit 1. Thereby, since the inside of the inverter box 15 can be maintained as it is simply by removing the inverter box side panel 4R, the maintenance work becomes easy. Further, the manufacturing cost can be reduced by the amount not provided with the panel for closing the front opening of the inverter box 15.

The best mode for carrying out the present invention has been described above. However, the present invention is not limited to the above-described embodiment, and various modifications and changes can be made based on the technical idea of the present invention. .
For example, in the present embodiment, the case where the compressor 13 is disposed on the front right side of the gas engine 11 and the generator 12 is disposed on the front left side has been described. Alternatively, the compressor 13 may be disposed on the right side and the generator 12 may be disposed on the front right side.

It is a front view of the outdoor unit (air conditioner) which concerns on this embodiment. It is a perspective view of the outdoor unit in the state where a panel is removed. It is a front view of the outdoor unit of the state which removed the panel. It is a front view of the outdoor unit of a state which removed the control box. It is a rear view of an outdoor unit. It is a left view of an outdoor unit. It is a right view of an outdoor unit. It is the figure which looked at the machine room of an outdoor unit from the top. It is a perspective view of an inverter box. (A) is a front view of an inverter box side panel, (b) is a rear view of an inverter box side panel. It is VII-VII sectional drawing of Fig.10 (a).

Explanation of symbols

1 Outdoor unit (air conditioner)
2 Air conditioner body 3b Vertical frame (support)
4 Front Panel 4L Control Box Side Panel 4R Inverter Box Side Panel 9 Heat Exchanger 11 Gas Engine 12 Generator 13 Compressor 14 Control Box 15 Inverter Box 45 Expansion Valve 46 Four Way Valve 50 Heat Exchange Chamber 52 Bypass Valve 53 Liquid Valve 54 Refrigerant Gas shut-off valve 60 Machine room 60L Machine room left 60R Machine room right

Claims (3)

The air conditioner body is divided into upper and lower stages, and the upper stage is provided with a heat exchange chamber in which a heat exchanger is arranged, and the lower stage is driven by a gas engine, a compressor driven by the gas engine, and the gas engine. An air conditioner provided with a machine room in which the generator is arranged,
A control box containing electronic parts for controlling the compressor is disposed on the front side of the machine room on the side where the compressor is located, and the power generation is located on the side where the generator is located. An inverter box containing electronic parts for controlling the machine is arranged,
A front panel for closing the front of the machine room, a control box side panel for closing the front of the side where the control box is located, and an inverter box side panel for closing the front of the side where the inverter box is located, divided,
A partition plate that partitions the heat exchange chamber and the machine chamber is provided with a pair of vent holes for air to pass from the machine chamber to the heat exchange chamber, and the control box is provided below one vent hole. The inverter box is disposed below the other vents, the ventilation holes formed on the upper surface of each box are positioned below the corresponding vents,
Air for taking outdoor air into the control box and the inverter box at a position corresponding to the lower part of the control box on the control box side panel and a position corresponding to the lower part of the inverter box on the inverter box side panel. Forming intake holes,
Outdoor air is taken into each box through each air intake hole formed in each panel, and then discharged to each heat exchange chamber through each ventilation hole and each air vent. Air conditioner characterized by. The air conditioner according to claim 1, wherein a support column is provided in the center of the front surface of the machine room, and the control box and the inverter box are distributed and arranged on both sides of the support column. The air according to claim 2, wherein a motor-operated valve incorporated in a refrigeration cycle, which is controlled by electronic components housed in the control box, is disposed on the side of the machine room where the control box is disposed. Harmony machine.

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