JP3469722B2 - Air conditioner - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner having a ventilation function, and more particularly to the structure of a ventilation duct of the air conditioner.

[0002]

2. Description of the Related Art A conventional air conditioner having a ventilation function is disclosed in Japanese Patent Laid-Open No. 4-73531, which will be described with reference to FIGS.

As shown in FIGS. 11 and 12, 110 is a refrigerant pipe, 111 is a drain hose, and 116 is a power line. Further, 106 is a refrigerant pipe 110 and a drain hose 1.
11, a sleeve for guiding the power line 116 out of the room,
A ventilation passage 117 is provided in the sleeve 106.

Further, 107 is a ventilation blower, and 105 is a duct penetrating the front side of the indoor unit, which communicates with the sleeve 106 to form a ventilation passage 117. Reference numeral 108 denotes an indoor air intake / exhaust port of the ventilation passage 117, and 109 denotes an outdoor air intake / exhaust port of the ventilation passage 117. Further, 112 is the refrigerant pipe 110,
The drain hose 111 and the power line 116 are piped springs that are integrated in the sleeve 106, and a guide plate is attached to the piped spring 112 in order to ensure the ventilation passage 117 in the sleeve 106.

When exhausting indoor air to the outside of the room, the ventilation blower 107 sucks the indoor air from the indoor intake / exhaust port 108, passes through the duct 105 and the sleeve 106, and the indoor air from the outdoor intake / exhaust port 109. Blow out outside. On the contrary, when the outside air is taken into the room, the ventilation blower 107 rotates in the reverse direction, sucks the outside air from the outside air intake / exhaust port 109, passes through the sleeve 106 and the duct 105, and then the outside air from the indoor unit side intake / exhaust port 108. Blow air into the room.

[0006]

In the above-described conventional air conditioner, the refrigerant pipe 110, the drain hose 111, and the power line 116 are put through the sleeve 106 and put together, and the remaining space in the sleeve 106 is used as the air passage 117. Therefore, when inserting into the piping hole opened in the plumbing wall,
Refrigerant piping 110, drain hose 111, power line 116
Must be passed through the sleeve 106 having the same diameter as that of the pipe hole, and the sleeve 106 must be inserted into the pipe hole in a grouped state. Therefore, it is difficult to insert the sleeve 106 into the pipe hole, and it may take time for the piping work. was there.

An object of the present invention is to provide an air conditioner which eliminates the above-mentioned drawbacks of the conventional air conditioners, improves the workability of installation, and reduces the noise value on the indoor side.

[0008]

In order to solve the above-mentioned problems, the air conditioner of the present invention has a structure in which various pipes connecting an indoor unit and an outdoor unit are inserted, and In an air conditioner in which a pipe hole having a circular cross section for arranging a ventilation duct connected to the machine is formed in a wall, the ventilation duct is inserted at a predetermined distance at the indoor end of the pipe hole, While fixing various pipes in the pipe hole, the cross-sectional shape of the end portion is formed in a semicircular shape, and the circular portion of the semicircular shape is substantially aligned with the inner surface of the pipe hole ,
A work window formed on the bottom of the indoor unit for use in mounting,
Removably attach the work window to the closing lid and the piping hole.
Form an outlet that allows various types of piping to flow downward from the bottom of the indoor unit.
In order to prevent the cutout,
It is shall equipped.

The invention according to claim 2 is an indoor unit and an outdoor unit.
Insert the various pipes that connect to the
A circular pipe section with a ventilation duct that connects to
In the air conditioner constructed by
Insert the specified distance at the indoor end of the piping hole
Fix various pipes in the pipe hole and cross section of the end
The shape is formed into a semi-circle, and the circular portion of the semi-circle is formed into the pipe hole.
The ventilation duct, which is located inside the indoor unit and is approximately aligned with the inner surface
Ventilation device for ventilating through, the ventilation device and the ventilation duct
Equipped with a connection duct that is installed in the indoor unit to connect
The connecting duct is composed of an L-shaped pipe,
The one end of the ventilation device is rotatably attached to the ventilation device.
Is shall be possible to change the position of the other end connected to the duct.

The invention according to claim 3 is an indoor unit and an outdoor unit.
Insert the various pipes that connect to the
A circular pipe section with a ventilation duct that connects to
In the air conditioner constructed by
Insert the specified distance at the indoor end of the piping hole
Fix various pipes in the pipe hole and cross section of the end
The shape is formed into a semi-circle, and the circular portion of the semi-circle is formed into the pipe hole.
Approximately match the inner surface, near the opening on the outdoor side of the piping hole,
Fix the various pipes inserted through the above pipe holes,
A shall comprise fixing means to secure a space for ventilation within.

According to a fourth aspect of the present invention, various pipes inserted into the pipe hole are fixed near the opening of the pipe hole on the outdoor side, and a space for ventilation is secured in the pipe hole. It is equipped with means.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIG.
It will be described with reference to FIGS. The present invention is not limited to this.

An indoor unit of an air conditioner according to an embodiment of the present invention will be described with reference to FIG. 1 showing a perspective view seen from the rear.
In FIG. 1, 1 is a front panel attached to the front of the indoor unit, 2 is a cabinet of the indoor unit molded from synthetic resin, and the front panel 1 is detachably attached to the front of the cabinet 1. Further, 3 is a refrigerant pipe for flowing a refrigerant between the indoor units, 4 is a drain hose for discharging drain water generated by condensation in a heat exchanger of the indoor unit to the outside, and 5 is from the indoor unit to the outdoor unit. It is a power line that supplies power.

Further, 6 is a ventilation device incorporated by a ventilation blower (not shown), 7 is a connecting duct whose one end is connected to the ventilation port of the ventilation device 6 and is bent in an L shape, and 8 is the other end of the connecting duct. It is a ventilation duct that is connected to the side and is inserted into a piping hole formed in the wall. Further, the ventilation device 6 exhausts indoor air to the outside.

FIG. 2 is a sectional view showing a state in which the refrigerant pipe 3, the drain hose 4, and the power line 5 are inserted into the pipe hole 16 formed in the wall 9. The space of the pipe hole 16 shown by the dotted line in the drawing is the remaining space after the above-mentioned pipes are arranged, and the ventilation duct 8 is inserted by a predetermined distance from the opening of the pipe hole 16 on the indoor side. Thereby, the refrigerant pipe 3, the drain hose 4, and the power line 5 are fixed, and the above space is secured. The distance to insert the ventilation duct 8 into the pipe hole 16 is such that the refrigerant pipe 3, the drain hose 4, and the power line 5 are brought close to each other on the indoor side opening side to secure a ventilation passage in the pipe hole 16. Specifically, the distance to insert the ventilation duct 8 into the piping hole 16 may be about 5 cm.

The shape of the ventilation duct 8 will be described with reference to FIG. In FIG. 3, 8 a is a circular opening formed at one end of the ventilation duct 8 connected to the connection duct 7, and 8 b is a semi-circular opening formed at the other end of the ventilation duct 8 inserted into the piping hole 16. The shape of the semicircular opening 8b of the ventilation duct 8 is substantially the same as the shape of the space of the piping hole 16 shown by the dotted line in FIG. Then, when performing the piping work for passing various pipes through the pipe hole 16 formed in the wall on the back surface of the indoor unit, first, the refrigerant pipe 3, the power line 5, and the drain hose 4 are passed through the pipe hole 16 from the indoor unit side to the outdoor side. Then, the ventilation duct 8 is inserted from the indoor side, and piping work is performed.

A case where various pipes are extended downward from the bottom surface of the cabinet 2 of the indoor unit will be described with reference to FIGS. 4 to 6. In FIG. 4, 2a is a work window formed by cutting out the bottom surface of the cabinet 2 of the indoor unit in a U shape, and 10 is a lid that closes the work window 2a and can be removed as necessary.

The mounting structure of the lid 10 to the work window 2a will be described with reference to FIG. In FIG. 5, 2b is a rib formed on the inner surface side of the work window 2a for preventing the lid 10 from entering the indoor unit, and 2c and 2d are notches formed in the rib 2b. Further, 10a is a fitting portion that fits in the cutout portion 2c, 10b is a locking claw that locks the cutout portion 2d to fix the lid 10 to the work window 2a, and 10c forms an outlet for piping described later. It is a perforation used for.

There is only a small gap between the wall on which the indoor unit is mounted and the back surface of the cabinet 2 of the indoor unit, but if this gap has a distance d shown in FIG.
The lid 10 can be easily attached / detached to / from the work window 2a of the cabinet 2 by sliding it horizontally toward the wall side by a distance d and then moving it downward.

When the ventilation duct 8 is inserted into the piping hole 16 on the back surface of the indoor unit, the lid 10 is removed from the work window 2a on the bottom surface of the cabinet 2 of the indoor unit. And the working window 2
From a, the installer puts his hand in the pipe hole 16 and the refrigerant pipe 3,
After inserting the drain hose 4 and the power line 5, the pipe hole 16
While observing the remaining space inside, the ventilation duct 8 is inserted into the pipe hole 16 from the side of the semicircular opening 8b by a predetermined distance. Since the remaining space between the ventilation duct 8 and the piping hole 18 is substantially the same as the shape of the semicircular opening 8b, the ventilation duct 8 can be inserted into the piping hole 18 only by inserting the ventilation duct 8 into the piping hole 18. Fixed. As a result, the ventilation duct 8 and the remaining space of the piping hole 16 outside the portion where the ventilation duct 8 is inserted communicate with each other as a ventilation passage. Further, after the ventilation duct 8 is inserted, the work window 2a is closed by the lid 10.

Next, the arrangement of the pipes when the pipe hole 16 is formed on a portion other than the back surface of the indoor unit will be described with reference to FIG.
In FIG. 6, when the refrigerant pipe 3, the drain hose 4, the power line 5, and the connection duct 7 are laid out in the downward direction of the indoor unit, the lid 10 is removed, and the work window 10 is replaced with the refrigerant pipe 3 and the drain hose. 4, used as an outlet for the power line 5 and the connection duct 7.

Further, as another method, the lid 10 of FIG.
As shown in FIG. 5, perforations 10c formed on the surface of the lid body 10 in order to make an outlet that extends the refrigerant pipe 3, the drain hose 4, the power line 5, and the connection duct 7 downward from the bottom surface of the indoor unit.
To use. Then, as shown in FIG. 8, when installing the indoor unit, the installer cuts the lid 10 along the perforations 10c with a cutter or the like to form an outlet 10d.
Through 0d, the refrigerant pipe 3, the drain hose 4, the power line 5, and the end portion of the connection duct 7 can be discharged to the outside of the indoor unit. The perforations 10c are formed by arranging elongated holes in a dotted line, but grooves for notches may be formed in advance on the surface of the lid 10.

Refrigerant piping 3, drain hose 4, power line 5,
When the connection duct 7 is drawn along the side surface of the indoor unit, an outlet and a lid body for opening and closing the outlet are formed on the side surface of the cabinet 2 in advance, and after removing the lid body, As shown in FIG. 7, the direction in which the L-shaped first connection duct 7 is attached to the ventilation device is changed. That is, the ventilation device 6
Connection duct 7 with the first connection duct 7 attached to
Is rotated to position the end of the connection duct 7 outside the cabinet 2 in the side surface direction of the indoor unit, and then a relay duct or the like is connected to guide the duct to the piping hole.

Further, a weather cover arranged outside the piping hole will be described with reference to FIGS. 9 and 10. In FIG. 9, 11 is a base frame attached to the outdoor side opening of the piping hole 16, 12 is a locking claw formed inside the base frame 11,
Reference numeral 13 is an opening formed in the base frame 11 for passing various pipes arranged in the pipe hole 18 and the ventilation duct 8, and 14 is a cover attached to the base frame 11 to prevent rain and the like from entering the pipe hole 18. Is. The weather cover 14
In the assembled state, an opening is formed on the lower surface of the weather cover 14, and the refrigerant pipe 3, the drain hose 4, the power line 5 and the like are guided to the outdoor unit through the opening.

Further, as shown in FIG.
Refrigerant pipe 3 drawn out from the room, drain hose 4,
The electric power lines 5 are gathered together by the binding bands 15 that are passed through the locking claws 12, 12 of the base frame 11 of the weather cover fixed to the outside of the piping hole 16 and are fixed in the weather cover. As a result, the positions of the refrigerant pipe 3, the drain hose 4, and the power line 5 can be fixed on the outdoor side of the pipe hole 16, and these pipes can be prevented from blocking the ventilation air passage and the outlet of the ventilation air passage can be widened. . After that, the base frame 1
A cover 14 is attached on top of 1 to prevent rainwater from entering through the ventilation duct.

[0026]

According to the air conditioner of the present invention, claim 1
The invention described in, is various pipes for connecting the indoor unit and the outdoor unit.
The ventilation duct that connects to the indoor unit.
In an air conditioner in which a pipe hole having a circular cross section to be installed is formed in a wall, the ventilation duct is inserted at a predetermined distance at the indoor end of the pipe hole to insert the various pipes into the pipe hole. is fixed, the cross-sectional shape of the end portion is formed in a semi-circular, in order to substantially match the circular portion of the semi circular piping hole inner surface, by inserting a predetermined distance in a ventilation ductwork hole, the pipe Various pipes inserted into the hole are fixed,
Moreover, a space for ventilation can be surely secured in the pipe hole.

The invention according to claim 1 is a working window formed on the bottom surface of the indoor unit for use in mounting the ventilation duct, a lid for detachably closing the working window, and the piping hole. In order to form an outlet that allows various pipes to be inserted into the outdoor unit from the bottom surface of the outdoor unit to be formed downward, a notch portion that can be formed in the lid body is provided. Can be easily formed, and the work window can be made sufficiently large regardless of the size of the outlet when the various pipes are drawn downward, and the workability is improved.

The invention according to claim 2 is an indoor unit and an outdoor unit.
Insert the various pipes that connect to the
A circular pipe section with a ventilation duct that connects to
In the air conditioner constructed by
Insert the specified distance at the indoor end of the piping hole
Fix various pipes in the pipe hole and cross section of the end
The shape is formed into a semi-circle, and the circular portion of the semi-circle is formed into the pipe hole.
A ventilation device that substantially matches the inner surface and is disposed in the indoor unit to ventilate through the ventilation duct; and a connection duct that is disposed in the indoor unit to connect the ventilation device and the ventilation duct. The connecting duct is composed of an L-shaped pipe,
Since one end of the ventilation device is rotatably attached and the position of the other end connected to the ventilation duct can be changed, a duct with a large pressure loss on its inner surface such as a bellows-shaped duct is not used. Therefore, the pressure loss of the duct can be reduced and the noise can be reduced.

The invention according to claim 3 is an indoor unit and an outdoor unit.
Insert the various pipes that connect to the
A circular pipe section with a ventilation duct that connects to
In the air conditioner constructed by
Insert the specified distance at the indoor end of the piping hole
Fix various pipes in the pipe hole and cross section of the end
The shape is formed into a semi-circle, and the circular portion of the semi-circle is formed into the pipe hole.
Approximately match the inner surface, near the opening on the outdoor side of the piping hole,
Since the fixing means for fixing various pipes inserted in the pipe hole to secure a space for ventilation in the pipe hole, the remaining space of the pipe hole is not closed, and the pressure loss of the ventilation air passage is prevented. Reduces the load on the ventilation blower and reduces the noise level.

[Brief description of drawings]

FIG. 1 is a perspective view showing a piping structure of an indoor unit of an air conditioner according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state where the pipe of FIG. 1 is inserted into a pipe hole.

3 is a perspective view showing the outer shape of the connection duct of FIG. 1. FIG.

FIG. 4 is a perspective view showing a work window formed in the indoor unit of FIG.

5 is an explanatory view showing a structure for attaching and detaching a lid to and from the work window of FIG.

FIG. 6 is a perspective view showing a state in which various pipes are extended downward from the indoor unit through the work window in FIG.

FIG. 7 is a perspective view showing a state where a pipe is taken out from the side surface of the indoor unit of FIG.

FIG. 8 is a perspective view showing a state in which the perforations in FIG. 5 are cut out and the pipe is extended downward.

FIG. 9 is an exploded view of a weather cover used in the air conditioner according to the embodiment of the present invention.

FIG. 10 is a cross-sectional view showing a fixed state of the pipe in the weather cover of FIG.

FIG. 11 is a cross-sectional view showing a ventilation passage of a conventional air conditioner.

12 is a cross-sectional view of the ventilation passage of FIG.

[Explanation of symbols]

1 Front panel 2 cabinets 3 Refrigerant piping 4 drain hose 5 power lines 6 Ventilator 7 connection duct 8 ventilation ducts 10 Lid 11 pace frames 12 locking claws 14 cover 15 binding bands 16 Piping hole

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Bibliographic references Sho 62-40259 (JP, Y1) (58) Fields investigated (Int.Cl. ⁷ , DB name) F24F 1/00 431 F16L 5/00

Claims (3)

(57) [Claims] 1. An air conditioner in which various pipes connecting an indoor unit and an outdoor unit are inserted, and a pipe hole having a circular cross section for arranging a ventilation duct connected to the indoor unit is formed in a wall, The ventilation duct is inserted into the indoor end of the pipe hole by a predetermined distance to fix the various pipes in the pipe hole, and the end portion has a semicircular cross-sectional shape. The circular part of the is roughly aligned with the inner surface of the pipe hole , and is formed on the bottom of the indoor unit for use in mounting the ventilation duct.
Work window and a lid for detachably attaching the work window,
From the bottom of the indoor unit, place various pipes that are inserted through the piping holes in the downward direction.
A notch can be formed in the lid to form an outlet.
An air conditioner characterized by having an active notch . 2. Various pipes for connecting an indoor unit and an outdoor unit
A ventilation duct that connects with the indoor unit is installed
An air conditioner with a circular cross-section piping hole formed in the wall
In addition, the ventilation duct is installed at a predetermined end of the piping hole on the indoor side.
Insert only the distance and fix the various pipes in the pipe holes.
Along with this, the cross-sectional shape of the end portion is formed in a semicircular shape,
A circular part of the pipe is substantially aligned with the inner surface of the pipe hole, and is arranged in the indoor unit to ventilate through the ventilation duct.
For connecting a ventilation device, the ventilation device and the ventilation duct.
A connecting duct disposed in the indoor unit, wherein the connecting duct comprises an L-shaped pipe, and
The one end of the air device is rotatably attached and the ventilation duct
It is possible to change the position of the other end connected to the
Air conditioner and butterflies. 3. Various pipes for connecting an indoor unit and an outdoor unit
A ventilation duct that connects with the indoor unit is installed
An air conditioner with a circular cross-section piping hole formed in the wall
In addition, the ventilation duct is installed at a predetermined end of the piping hole on the indoor side.
Insert only the distance and fix the various pipes in the pipe holes.
Along with this, the cross-sectional shape of the end portion is formed into a semicircular shape, and the semicircular shape
The circular portion of the pipe is substantially aligned with the inner surface of the pipe hole, and is inserted into the pipe hole near the outdoor side opening of the pipe hole.
Fix the various pipes that are installed, and create a ventilation space in the pipe holes.
An air conditioner characterized by being provided with a securing means for securing .