JP2009085467A - Outdoor unit of air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outdoor unit of an air conditioner capable of stably fixing a heat exchanger and securing the strength of a housing. <P>SOLUTION: This outdoor unit of the air conditioner wherein air suction openings are formed at right and left side faces and the back face of a box-shaped housing, an air supply opening is formed at a top face, the heat exchanger is disposed inside the air suction opening, an air distribution fan is disposed inside the air supply opening, an electrical component box is received at a front face, and a front panel is disposed, has a structure where ends of the heat exchangers are kept into contact with front-side right and left supports constituting the housing, the front-side right and left supports are provided with edges at ends, side plates are disposed at ends of the heat exchanger, ends of the side plates have extending portions extending to be kept into contact with the supports, and edges of the supports and the extending portions of the heat exchanger are kept into contact with each other, and connected and fixed. <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 unit described in Patent Document 2 has a compressor disposed on the bottom surface on one end side in a substantially rectangular parallelepiped housing, and a heat exchanger having an L-shaped cross section so as to face two side surfaces of the housing. It is the composition which arranged.

In such an outdoor unit, it is necessary to fix it to the housing so that the positions of various components do not shift during movement. In particular, since the refrigerant pipe passes through the heat exchanger, if the displacement occurs and the refrigerant pipe is displaced, it may lead to leakage of the refrigerant. In order to solve such a problem, for example, in the outdoor unit described in Patent Document 2, brackets are provided for fixing at a plurality of positions between the side plate portion and the fins at the lower part of the heat exchanger, A method of fixing to a base plate has been proposed.
JP 2004-85165 A JP 07-198165 A

  By the way, in a large-sized outdoor unit, the heat exchanger of the same shape may be arranged in two upper and lower stages. Even if the fixing method described in Patent Document 2 is applied to such an outdoor unit, only the lower heat exchanger can be fixed, and the upper heat exchanger may become unstable. there were.

  In addition, a large outdoor unit configured by arranging heat exchangers in two upper and lower stages needs to have a wide air inlet according to its scale, so the area of the opening of the casing becomes large. There is a risk that the strength of the steel will decrease.

  The present invention has been made in view of the above problems, and provides an outdoor unit of an air conditioner that can stably fix a heat exchanger and can ensure the strength of a casing. It is intended.

  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 arranged inside an outlet, an electrical component box is accommodated in the front, and a front panel is provided, a heat exchanger for the left and right columns on the front side constituting the casing The air conditioner outdoor unit has a structure in which the end portions of the heat exchanger are in contact with each other, and the end portion of the heat exchanger and the support are coupled to each other at the contact portion.

  According to a second aspect of the present invention, in addition to the first aspect, in at least one of the front-side left and right struts, a heat exchanger is extended to the inner side of one end of the strut, and a heat is generated at the other end of the strut. The outdoor unit of an air conditioner is characterized in that an end portion of the exchanger and a support are coupled, and a suction window for sucking air is provided in the support.

  Claim 3 of the present invention, in addition to claim 1 or 2, each of the front side left and right support columns is provided with an edge at the end, and a side plate is provided at the end of the heat exchanger, The end of the side plate is provided with an extending portion extending so as to abut on the support column, and the edge portion of the support column and the extension portion of the heat exchanger are contacted and fixed. It is an outdoor unit of an air conditioner.

  According to a fourth aspect of the present invention, in addition to the first to third aspects, in each of the left and right columns on the front side, the outer peripheral surface of the end portion of the heat exchanger and the column are abutted and fixed, and The outdoor unit of the air conditioner is characterized in that the inner peripheral surface of the end portion of the exchanger and the support are also coupled and fixed at a plurality of positions in the vertical direction.

  According to the first aspect of the present invention, the end portions of the heat exchanger are in contact with the left and right columns on the front side constituting the housing, respectively, and the end portions of the heat exchanger are in the contact portions. Since the heat exchanger is fixed to the column of the housing, it is very stable even in a large outdoor unit configured by arranging the heat exchanger in two upper and lower stages. Even when the outdoor unit is moved, the upper and lower heat exchangers do not shift. In addition, the structure in which both ends of the U-shaped heat exchanger are fixed to the support columns respectively leads to reinforcement of the strength of the housing itself. Can be secured.

  According to the invention of claim 2, in at least one of the front-side left and right columns, a heat exchanger is extended to the inside of one end of the column, and the end of the heat exchanger is formed at the other end of the column. And the support column is provided with a suction window for sucking air, so that the heat exchanger can be fixed to the support column of the case and the strength of the case itself can be reinforced. In addition, since air can be sucked from the column portion, the performance of the heat exchanger in the same size can be improved.

  According to the third aspect of the present invention, since the edge portion of the support column and the extension portion of the heat exchanger are brought into contact with each other and fixed together, air flows from between the support column and the heat exchanger. The air that flows into the heat exchanger can be cut off by this, so that the air always enters from the suction port or the suction window, enters the inside through the heat exchanger, and does not enter the air from other inflow paths. This leads to improved performance of the heat exchanger.

  According to the invention of claim 4, in each of the left and right columns on the front side, the outer peripheral surface of the end portion of the heat exchanger and the column are brought into contact and fixed, and the inner end of the end portion of the heat exchanger Since the peripheral surface and the support column are also coupled and fixed at a plurality of positions in the vertical direction, the heat exchanger can be more stably fixed, and the casing strength can be further secured.

  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 an outdoor unit of an air conditioner in which a blower fan is arranged inside the air outlet and an electrical component box is accommodated in the front to provide a front panel, the front side left and right struts constituting the housing The end portions of the heat exchanger are in contact with each other, and the front left and right support columns are provided with edge portions at the end portions, respectively, and the side plates are provided at the end portions of the heat exchanger. An extension part extended so as to contact the support is provided at the end of the support, and the edge part of the support and the extension part of the heat exchanger are contacted and fixed together It is.

  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.

  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.
A side plate 35 is provided at the end of the heat exchanger 16, and both ends of the side plate 35 are formed as extended portions 36 that are bent and extended at a predetermined angle.

Next, the fixing method of the heat exchanger 16 in the outdoor unit 10 of the present invention will be described. The heat exchanger 16 is placed on the housing shown in FIG. 6 after the two heat exchangers 16a and 16b are overlapped via the partition plate 28. The one end of the heat exchanger is connected to the column 23 and the other end is connected to the column 22. Specifically, as shown in FIG. 8 (a), the extending portion 36 of the side plate 35 provided at one end of the heat exchanger abuts on an edge portion 37 formed by bending the end of the column 23 inward. In the state, the heat exchanger 16 is installed. In this state, one end of the support column 23 and the heat exchanger 16 is fixed by screwing to screw holes (not shown) provided at a plurality of locations of the extending portion 36 and the edge portion 37.
In addition, as shown to Fig.8 (a), you may make it extend a part of the edge part 37 of the support | pillar 23 to the side plate 35 side, and screw it in this part.

  The other end of the heat exchanger 16 is connected to a support column 22 that is formed obliquely so as to cut a part of a corner from the side surface to the front surface of the housing. At this time, the heat exchanger 16 is connected to the support column 22. The extending portion 38 of the side plate 35 provided at the other end of the heat exchanger 16 abuts on the edge 39 of the support column 22 located on the front side of the housing. It becomes a state. In this state, the other end of the support column 22 and the heat exchanger 16 is fixed by screwing to screw holes (not shown) provided at a plurality of locations of the extending portion 38 and the edge portion 39.

  FIG. 8B is a cross-sectional view of the outdoor unit 10 of the present invention configured as described above. As shown in FIG. 8B, a slidable electrical component box 20 is installed inside the front upper cover 14, and the column 23 is not disturbed when the electrical component box 20 is slid to the left. Is provided on the side. 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. 8B, one end of the heat exchanger 16 and the column 23 are fixed so as to shield air, and the other end of the heat exchanger 16 and column 22 are shielded from air. Since it is fixed, the air flowing into the heat exchanger 16 always flows in from the suction window 27 provided in the suction port 12 or the support column 22 and enters the inside through the heat exchanger 16, and from other inflow paths. Since it is configured so that air does not enter, the heat exchange efficiency is improved.

  In addition, in fixation with the one end of the heat exchanger 16, and the support | pillar 23, and fixation with the other end of the heat exchanger 16, and the support | pillar 22, the structure which screws the side plate 35 by the side of the outer peripheral surface of the heat exchanger 16 However, it is also possible to employ a configuration in which the side plate 35 on the inner peripheral surface side of the heat exchanger 16 and each support are fixed at a plurality of locations. For example, the strength is further increased by providing elongated bars at a plurality of positions in the vertical direction between the side plate 35 on the inner peripheral surface side of the heat exchanger 16 and the support columns and fixing them with screws or the like.

  Next, the slide structure of the electrical component box 20 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.

  In the above-described embodiment, the heat exchanger 16 is extended to the inside of the column 22, and the column 22 is provided with the suction window 27 so that air can be taken in the column 22 part. However, the present invention is not limited to this embodiment, and such a configuration may be adopted for the other support column 23 so that a suction window is provided for the support column 23 as well.

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. (A) is a perspective view showing the fixed part of the heat exchanger 16 and the support | pillar 23, (b) is a cross-sectional view of the outdoor unit 10 by this 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, 35 ... Side plate, 36 ... Extension part, 37 ... Edge part, 38 ... Extension part, 39 ... Edge part.

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 is provided with a front panel, a structure in which the ends of the heat exchanger are in contact with the left and right columns on the front side that constitute the housing And the outdoor unit of the air conditioner characterized by connecting the edge part and support | pillar of a heat exchanger in the said contact part, respectively.   In at least one of the front left and right columns, the heat exchanger is extended to the inside of one end of the column, and the end of the heat exchanger and the column are coupled to the other end of the column, The outdoor unit for an air conditioner according to claim 1, wherein a suction window for sucking air is provided in the support column.   Each of the left and right support columns on the front side has an edge at each end, a side plate is provided at the end of the heat exchanger, and the end of the side plate extends so as to contact the support column. The outdoor unit for an air conditioner according to claim 1 or 2, further comprising a projecting portion, wherein an edge portion of the support column and an extending portion of the heat exchanger are brought into contact with each other to be coupled and fixed.   In each of the left and right columns on the front side, the outer peripheral surface of the end of the heat exchanger and the column are brought into contact and fixed, and the inner peripheral surface of the end of the heat exchanger and the column are also fixed in the vertical direction. The outdoor unit for an air conditioner according to any one of claims 1 to 3, wherein the unit is fixedly coupled at a plurality of locations.

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