JP2009079870A - Outdoor unit of air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outdoor unit of an air conditioner capable of easily checking leakage of a refrigerant by welding and seal leakage, and checking sensors and a solenoid valve, when shipping from a factory and repairing, while reducing the whole size. <P>SOLUTION: This outdoor unit of the air conditioner is formed by arranging an air suction port on right-left side surfaces and a back face of a box-shaped casing, arranging an air blowout port on an upper surface, arranging a heat exchanger inside the air suction port, arranging an air blowing fan inside the air blowout port, and arranging a front panel by storing an electric equipment box in a front face. Among front face side right-left columns for constituting the casing, one column is arranged by retreating to a side surface by the thickness of the electric equipment box, and the electric equipment box is slidably arranged on one column side. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an outdoor unit of a large-scale air conditioner used in a building or the like, and in particular, has a suction port on both side surfaces and a rear surface, and has a blower port on an upper surface so as to face the blower port. The present invention relates to an outdoor unit having a structure in which a blower fan is provided and a heat exchanger is provided so as to face the suction port.

Constituent elements of an outdoor unit of an air conditioner mainly include a heat exchanger, a compressor room, an electrical component box, a blower fan, and the like. Has been proposed.
For example, the outdoor unit described in Patent Document 1 has a compressor disposed on the bottom surface of a substantially rectangular parallelepiped housing, and has a U-shaped cross section so as to face the three side surfaces of the housing outside the compressor. The heat exchanger is arranged.
In addition, the outdoor units described in Patent Document 2 and Patent Document 3 have a compressor disposed on the bottom surface of a substantially rectangular parallelepiped casing, and the heat exchange has an L-shaped cross section so as to face two side surfaces of the casing. It is the structure which arranged the vessel.

Moreover, the outdoor unit described in Patent Literature 2 and Patent Literature 3 employs a configuration in which the electrical component box is slidably held, so that an inspection operation or the like can be performed without removing the electrical component box.
JP 2004-85165 A JP-A-10-122603 Japanese Patent Laid-Open No. 10-259932

In the outdoor unit, the inside of the electrical component box may need to be checked at the time of shipment or failure, and at the time of shipment from the factory or during repair, a refrigerant leak check due to welding or seal leakage, sensors, etc. It may be necessary to check the solenoid valve. Therefore, it is necessary to configure so that the location where the refrigerant pipe and the solenoid valve connected to the heat exchanger are attached can be observed from the outside.
However, recent large outdoor units, like the outdoor unit described in Patent Document 1, have heat exchangers arranged from the top to the bottom on both sides and the back for compactness, and the front side has a compressor at the bottom. Since the chamber is provided, the electrical component box is disposed in the upper part, and the blower fan is provided in the upper surface, the interior cannot be easily checked.

  Moreover, although the slide mechanism of the electrical component box in the outdoor unit described in Patent Documents 2 and 3 has an advantage that inspection work or the like can be performed without removing the electrical component box, this slide mechanism is directly used as in Patent Document 1. Even if it is adopted in a large outdoor unit, there is a problem that a portion where internal parts such as a refrigerant pipe and a solenoid valve are attached cannot be observed from the outside.

  The present invention has been made in view of the above-mentioned problems, and while making the whole compact, at the time of shipment from a factory or during repair, a refrigerant leak check due to welding or seal leakage, sensors and solenoid valves An object of the present invention is to provide an outdoor unit of an air conditioner that can be easily checked.

  According to a first aspect of the present invention, air suction ports are provided on the left and right side surfaces and the rear surface of a box-shaped housing, an air outlet is provided on the upper surface, a heat exchanger is disposed inside the air inlet, and the air In an outdoor unit of an air conditioner in which a blower fan is disposed inside the outlet and an electrical component box is accommodated in the front and a front panel is provided, one of the front-side left and right props constituting the housing Is an outdoor unit of an air conditioner characterized in that the electrical component box is provided so as to recede to the side by the thickness of the electrical component box, and the electrical component box is slidably provided on the one column side. .

  According to a second aspect of the present invention, in addition to the first aspect, in the electrical component box, a hanging hook for hanging from the housing is formed at an upper portion, and the hanging hook is provided in the housing. An outdoor unit of an air conditioner characterized in that it can be slid by being suspended from a slide rail.

  Claim 3 of the present invention, in addition to claim 1 or 2, is provided with an intermediate rail between one strut and the other strut among the front left and right struts constituting the housing, The electrical component box is an outdoor unit of an air conditioner characterized in that a lower back portion is slid along a middle rail.

  According to a fourth aspect of the present invention, in addition to the first to third aspects, the electrical component box is fixed by screwing to the housing in the accommodated state, and a front panel is fitted thereon. It is an outdoor unit of an air conditioner.

  According to the first aspect of the present invention, even in an outdoor unit in which the electrical component box 20 needs to be installed on the front side by providing the suction ports 12 on both side surfaces and the rear surface, the electrical component box 20 is arranged in the lateral direction. By sliding, a gap is created on the front side where the inside of the outdoor unit 10 can be observed, and refrigerant leak check due to welding or seal leakage is performed at the time of shipment from the factory, and sensors and solenoid valves are checked during repair. It becomes possible.

  According to a second aspect of the present invention, the electrical component box has a suspension hook formed on the upper portion thereof, which is suspended from the housing, and the suspension hook is suspended from a slide rail provided in the housing. Since the slide movement is possible by lowering, the slide movement is possible while realizing space saving.

  According to the third aspect of the present invention, an intermediate rail is provided between one strut and the other strut among the front left and right struts constituting the housing, and the electrical component box has a rear surface. Since the lower part slides along the middle rail, a stable sliding operation is possible.

  According to the invention of claim 4, since the electrical component box is fixed by screwing to the housing in the accommodated state, and the front panel is fitted from above, the electrical component box is not in use. It does not move, can be used stably, and can also prevent noise caused by vibration.

  The outdoor unit of the air conditioner according to the present invention is provided with air suction ports on the left and right side surfaces and the back surface of the box-shaped housing, provided with an air outlet on the top surface, and disposed with a heat exchanger inside the air suction port, In the outdoor unit of the air conditioner that arranges the blower fan inside the air outlet and accommodates the electrical component box on the front and provides the front panel, among the front left and right struts constituting the housing, One support column is provided by retreating to the side by the thickness of the electrical component box, and the electrical component box is slidably provided on the one support column side, and the electrical component box is A suspension hook is formed at the top to be suspended from the housing, and the suspension hook is suspended on a slide rail portion provided on the housing so as to be slidable. is there.

  Embodiments of the present invention will be described with reference to the drawings. 1 and 2 are perspective views showing an outdoor unit 10 according to the present invention. As shown in FIGS. 1 and 2, the outdoor unit 10 of the present invention includes a substantially rectangular parallelepiped housing 11, suction ports 12 are provided on both sides and the back, and a blower fan 13 is provided on the top. The front surface is covered with an upper cover 14 and a lower cover 15. Inside the housing 11, a heat exchanger 16 is disposed from the top to the bottom so as to face the suction port 12. A compressor or the like is installed inside the lower cover 15 and inside the heat exchanger 16. A compressor chamber 17 is provided. Piping holes 18 for connecting pipes such as refrigerant pipes are provided on the front and lower side surfaces of the housing 11.

  An electrical component box 20 that houses electrical components 19 is provided on the inner side of the upper cover 14 provided in the front. The electrical component box 20 has a structure that slides in the side direction, which is a feature of the present invention.

  FIG. 6 is a perspective view showing the framework of the outdoor unit 10 of the present invention. As shown in FIG. 6, the outdoor unit 10 of the present invention has a structure in which four support columns 22 to 25 are provided on a bottom plate 21 and a peripheral edge 26 is provided on the upper surface. Of these, the support column 22 provided at one corner as viewed from the front is a tapered surface formed with an angle of approximately 45 °, and a suction window 27 is provided from the top to the bottom. Moreover, since the other corner | angular part seeing from the front requires the space for slidingly moving the electrical component box 20, it has the structure which escaped the support | pillar 23 to the side surface side. An intermediate beam 34 is provided between the column 23 and the column 22, and the rear surface of the electrical component box 20 is in contact with and slides on the intermediate beam 34.

FIG. 7A is a perspective view showing the configuration of the heat exchanger 16 provided inside the outdoor unit 10 of the present invention. The heat exchanger 16 is composed of a large number of fins and tubes (refrigerant tubes). In the present embodiment, the heat exchanger 16 is configured to be high in the height direction, and therefore, the two heat exchangers 16a and 16b are connected via the partition plate 28. Are installed in piles.
As shown in FIG. 7 (b), the heat exchanger 16 has a substantially U-shaped cross section so as to face the suction ports 12 provided on both side surfaces and the back surface of the housing 11. Further, a portion facing the column 22 formed as a tapered surface having an angle of approximately 45 ° is bent so as to have the same angle as the column 22. This makes it possible to simultaneously improve the heat exchange efficiency while achieving compactness.

FIG. 8 is a cross-sectional view of the outdoor unit 10 of the present invention configured as described above. As shown in FIG. 8, a slidable electrical component box 20 is installed inside the front upper cover 14, and the column 23 is arranged on the side so as not to get in the way when the electrical component box 20 is slid to the left side. It is provided to escape. Moreover, the support | pillar 22 provided in one corner | angular part seeing from the front becomes a taper surface formed with the angle of about 45 degrees, and the one end part of the heat exchanger 16 facing this support | pillar 22 part is as follows. It can be seen that it is configured to be bent so as to have the same angle as the support column 22.
As can be seen from FIG. 8, the air flowing into the heat exchanger 16 always flows from the suction port 12 and enters the inside through the heat exchanger 16 so that air does not enter from other inflow paths. Since it comprises, it leads to the improvement of heat exchange efficiency.

  Next, the slide structure of the electrical component box 20 which is a feature of the present invention will be described in detail with reference to the drawings. FIG. 3 is a perspective view showing a hanging structure of the electrical component box 20 in the outdoor unit 10 according to the present invention. As shown in FIG. 3, various electrical components 19 are accommodated in the electrical component box 20, and the upper lid 29 is fixed by screwing in this state. A flat plate portion 30 projecting vertically upward is formed on the upper part of the electrical component box 20, and a slightly inner portion of the end portion of the flat plate portion 30 is bent in a direction perpendicular to the flat plate portion 30, A suspension hook 31 having a tip bent downward is formed.

  On the other hand, as shown in FIGS. 3 and 4A, a window-like slide rail portion 32 for inserting the suspension hook 31 is formed on the side of the casing 11 where the electrical component box 20 is suspended. ing. As shown in FIG. 4B, the electrical component box 20 is accommodated in the housing 11 in a state where the suspension hook 31 is inserted and suspended with respect to the slide rail portion 32, and the flat plate portion. 30 and the screw holes provided in the housing 11 are fixed by screwing.

  When checking for refrigerant leaks due to welding or seal leakage at the time of shipment from the factory, or checking sensors and solenoid valves during repair, remove the screws and turn the electrical component box 20 leftward. By sliding, as shown in FIG. 1, a gap is created in which the inside of the outdoor unit 10 can be observed from the front, and the check operation can be performed. A stopper 33 is formed on a part of the slide rail portion 32 in order to prevent the electrical component box 20 from being slid more than necessary and becoming unstable during the sliding movement.

  Although the lower part of the back of the electrical component box 20 is slid and moved in contact with the middle rail 34, if the electrical component box 20 is supported only by the hanging hook 31, the load is applied only to the hanging hook 31. Therefore, in a state where the electrical component box 20 is lifted by the hanging hook 31, the lower part of the back surface of the electrical component box 20 is slid in a state of being fitted in a groove provided in the middle rail 34. Thus, the load may be distributed to the middle rail 34. Further, a slide auxiliary plate (not shown) on the lower surface of the electrical component box 20 to reduce the load may be provided on the upper side of the compressor chamber 17.

  With the configuration as described above, the electrical component box 20 is slid in the lateral direction even in an outdoor unit in which the electrical component box 20 needs to be installed on the front side by providing the suction ports 12 on both side surfaces and the rear surface. This creates a gap on the front side where the inside of the outdoor unit 10 can be observed, and it is possible to check refrigerant leaks due to welding and seal leaks when shipping from the factory, and to check sensors and solenoid valves when repairing. It becomes.

  Further, by forming the column 22 as a tapered surface having an angle of approximately 45 °, there is a merit when a plurality of outdoor units are installed side by side. FIG. 5 is a top view showing a state in which two outdoor units 10a and 10b are installed side by side in the same direction. As shown in FIG. 5, when the internal component box 20 of the right outdoor unit 10b is slid to perform an internal inspection, the pillars 22 at the corners of the left outdoor unit 10a are tapered surfaces. The slided electrical component box 20 does not come into contact. As described above, when the two outdoor units 10a and 10b are installed side by side, there is an effect that even if the distance between them is shortened, the slide of the electrical component box 20 is not affected.

It is the perspective view showing the outdoor unit 10 by this invention. It is the perspective view showing the state where a part of outdoor unit 10 by the present invention was notched. It is the perspective view showing the hanging structure of the electrical component box 20 in the outdoor unit 10 by this invention. (A) is a front view showing the hanging structure of the electrical component box 20, and (b) is a cross-sectional view taken along the line A-A ′. It is a top view showing the case where a plurality of outdoor units 10 according to the present invention are installed. It is a perspective view showing the framework of outdoor unit 10 of the present invention. It is a perspective view showing the structure of the heat exchanger 16 provided in the inside of the outdoor unit 10 of this invention. It is a cross-sectional view of the outdoor unit 10 according to the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Outdoor unit, 11 ... Housing, 12 ... Suction port, 13 ... Blower fan, 14 ... Upper cover, 15 ... Lower cover, 16 ... Heat exchanger, 17 ... Compressor room, 18 ... Hole for piping, 19 DESCRIPTION OF SYMBOLS ... Electrical component, 20 ... Electrical component box, 21 ... Bottom plate, 22-25 ... Column, 26 ... Circumference edge, 27 ... Suction window, 28 ... Partition plate, 29 ... Upper lid, 30 ... Flat plate part, 31 ... Hanging hook, 32 ... slide rail part, 33 ... stopper, 34 ... middle rail.

Claims (4)

  Air inlets are provided on the left and right sides and back of the box-shaped housing, air outlets are provided on the upper surface, a heat exchanger is arranged inside the air inlets, and a blower fan is arranged inside the air outlet In the outdoor unit of an air conditioner that houses an electrical component box in the front and has a front panel, one of the front side left and right columns that constitute the housing is the thickness of the electrical component box. An outdoor unit of an air conditioner, wherein the outdoor unit is provided so as to recede to the side by the amount, and the electrical component box is slidably provided on the one column side.   The electrical component box is formed with a hanging hook for hanging on the housing at the top, and the hanging hook is suspended on a slide rail portion provided on the housing so as to be slidable. The outdoor unit for an air conditioner according to claim 1, wherein the outdoor unit is an air conditioner.   An intermediate beam is provided between one column and the other column among the left and right columns on the front side constituting the casing, and the lower part of the electrical component box slides along the middle beam. The outdoor unit for an air conditioner according to claim 1 or 2, wherein the outdoor unit is configured as described above.   4. The outdoor unit for an air conditioner according to claim 1, wherein the electrical component box is fixed to the housing by being screwed and accommodated, and a front panel is fitted thereon.

Images