JP2015105776A - Outdoor machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate a risk that the vibration of a compressor main body to a direction orthogonal to an attachment direction of an accumulator cannot be sufficiently suppressed in a conventional outdoor machine in which a plurality of elastic members sandwiched between a leg part and a bottom plate are substantially-equally arranged in a circumferential direction.SOLUTION: In a plane view, all pieces of rubber vibration isolators 8 to 10 (elastic members) are arranged within a first range S1 of ±45° which is separated from a suction pipe 3b at the outside of a compressor main body 2 by +90° (90° in clockwise rotation in a circumferential direction), and sets a first position P1 as a center, and a second range S2 of ±45° which is separated from the suction pipe 3b by -90° (90° in anti-clockwise rotation in a circumferential direction), and sets a second position P2 as a center.

Description

  The present invention relates to an outdoor unit in which a compressor body is fixed on a bottom plate.

  A conventional outdoor unit includes a compressor body and a fixing mechanism for fixing the compressor body to a bottom plate. The fixing mechanism includes three leg portions that protrude outward in the radial direction of the compressor body, and three elastic members (vibration-proof rubber) that are sandwiched between the three leg portions and the bottom plate. In this outdoor unit, the elastic member is sandwiched between the leg portion and the bottom plate, thereby suppressing the vibration of the compressor body from being transmitted to the bottom plate.

JP 2008-151360 A

  By the way, in the outdoor unit described above, a cylindrical accumulator for temporarily storing the refrigerant is disposed on the side of the compressor body. In such an outdoor unit, the weight of the accumulator is shifted from the center of the compressor body. Therefore, the compressor body tends to vibrate in a direction perpendicular to the accumulator mounting direction in plan view. However, in the above-described outdoor unit, the three elastic members sandwiched between the three leg portions and the bottom plate are arranged substantially evenly in the circumferential direction, so that the compressor is orthogonal to the accumulator mounting direction. There is a possibility that the vibration of the main body cannot be sufficiently suppressed.

  Therefore, an object of the present invention is to provide an outdoor unit that can suppress vibration of the compressor body in a direction orthogonal to the accumulator mounting direction in plan view.

  An outdoor unit according to a first aspect of the present invention is connected to a compressor main body fixed on a bottom plate, an accumulator disposed on a side of the compressor main body, and an outer peripheral surface of the compressor main body. A suction pipe for sucking refrigerant into the compressor main body, and a fixing mechanism for fixing the compressor main body to the bottom plate, wherein the fixing mechanism is provided in the compressor main body, and the radial direction of the compressor main body One or a plurality of legs projecting outward, and a plurality of elastic members provided between the legs and the bottom plate, and the suction pipe on the outside of the compressor body in plan view All of the plurality of elastic members are within a first range of ± 45 ° centered on a first position separated by + 90 ° and a second range of ± 45 ° centered on a second position separated from the suction pipe by −90 °. Is arranged.

  In this outdoor unit, since all of the plurality of elastic members are arranged at positions where vibrations of the compressor main body in a direction orthogonal to the accumulator mounting direction are easily reduced, the compressor main body extends in a direction orthogonal to the accumulator mounting direction. Can be suppressed from vibrating.

  An outdoor unit according to a second aspect is the outdoor unit according to the first aspect, wherein the elastic member is disposed in each of the first range and the second range.

  In this outdoor unit, since the elastic member is disposed in each of the first range and the second range, the compressor body is fixed to the bottom plate in a well-balanced manner with respect to the direction orthogonal to the accumulator mounting direction. Therefore, the compressor body is less likely to vibrate in the direction orthogonal to the accumulator mounting direction.

  An outdoor unit according to a third aspect is the outdoor unit according to the second aspect, wherein the elastic member disposed in the first range and the elastic member disposed in the second range are in a plan view. It is arranged symmetrically with respect to a line orthogonal to a line connecting the first position and the second position and passing through the center of the compressor body.

  In this outdoor unit, vibration (accumulator of the accumulator) acting on two elastic members arranged in a plane view and orthogonal to a line connecting the first position and the second position and symmetrical with respect to a line passing through the center of the compressor body. (Vibration in a direction orthogonal to the mounting direction) is substantially the same, and therefore the compressor body is less likely to vibrate in a direction orthogonal to the accumulator mounting direction.

  An outdoor unit according to a fourth aspect of the present invention is the outdoor unit according to any one of the first to third aspects, wherein the elastic member is arranged on a line connecting the first position and the second position. And

  In this outdoor unit, the elastic member is arranged on a line connecting the first position and the second position, which is the position where vibration of the compressor body in the direction orthogonal to the accumulator mounting direction is most easily reduced. The compressor body is less likely to vibrate in the direction orthogonal to the mounting direction.

  As described above, according to the present invention, the following effects can be obtained.

  In the first invention, since all of the plurality of elastic members are arranged at positions where vibrations of the compressor main body in the direction orthogonal to the accumulator mounting direction are easily reduced, the compressor is orthogonal to the accumulator mounting direction. The main body can be prevented from vibrating.

  In the second invention, since the elastic member is disposed in each of the first range and the second range, the compressor main body is fixed to the bottom plate in a balanced manner with respect to the direction orthogonal to the mounting direction of the accumulator. Therefore, the compressor body is less likely to vibrate in the direction orthogonal to the accumulator mounting direction.

  In the third invention, vibration (accumulator) acting on two elastic members arranged in a plane view and orthogonal to a line connecting the first position and the second position and symmetrically with respect to a line passing through the center of the compressor body. Vibration in a direction orthogonal to the mounting direction of the compressor) is substantially the same, and therefore the compressor body is less likely to vibrate in a direction orthogonal to the mounting direction of the accumulator.

  In the fourth aspect of the invention, since the elastic member is arranged on the line connecting the first position and the second position, which is the position where the vibration of the compressor body in the direction orthogonal to the mounting direction of the accumulator is most easily reduced, the accumulator The compressor body is less likely to vibrate in a direction perpendicular to the mounting direction.

It is a perspective view of the outdoor unit concerning a 1st embodiment of the present invention. It is a front view of the outdoor unit shown in FIG. It is a top view of the outdoor unit shown in FIG. It is a top view of the outdoor unit which concerns on 2nd Embodiment of this invention.

  Hereinafter, an embodiment of an outdoor unit according to the present invention will be described with reference to the drawings.

[First Embodiment]
As shown in FIG. 1, the outdoor unit of the present embodiment includes a bottom plate 1, a compressor body 2 fixed on the bottom plate, an accumulator 3 disposed on the side of the compressor body 2, and a compressor body 2. Are fixed to the bottom plate 1, an outdoor heat exchanger 11, and a blower fan 12.

  The bottom plate 1 constitutes the bottom surface of the outdoor unit, and has mounting bases 13 to 15 to which vibration-proof rubbers 8 to 10 (elastic members) of the fixing mechanism 4 to be described later are attached as shown in FIG. .

  The compressor body 2 has a cylindrical shape and is fixed on the bottom plate via a fixing mechanism 4. The compressor body 2 houses a motor and a compression mechanism inside. The motor has, for example, a rotor and a stator, and a shaft is fixed to the rotor. The compression mechanism compresses the refrigerant in the compression mechanism by driving the motor. The refrigerant compressed by the compression mechanism is discharged from a discharge pipe 2 a disposed at the approximate center of the upper portion of the compressor body 2.

  The accumulator 3 is a cylindrical (cylindrical in this embodiment) container that temporarily stores the refrigerant supplied to the compression mechanism, and is provided on the outer peripheral surface of the compressor body 2 as shown in FIG. It is fixed to the support base 2b. An inlet pipe 3 a is connected to the approximate center of the upper part of the accumulator 3. A suction pipe 3 b is connected to the approximate center of the lower portion of the accumulator 3. The suction pipe 3b is inserted into a joint pipe 2c provided on the outer peripheral surface of the compressor body 2, and is welded to the inner peripheral surface of the joint pipe 2c. The refrigerant introduced into the accumulator 3 from the inlet pipe 3a is sucked into the compression mechanism of the compressor body 2 through the suction pipe 3b.

  As shown in FIGS. 2 and 3, the fixing mechanism 4 includes three legs 5 to 7 provided on the compressor body 2, three legs 5 to 7, and three attachment bases 13 to 15, which are the bottom plate 1. Anti-vibration rubbers 8 to 10 (elastic members) sandwiched therebetween.

  As shown in FIGS. 2 and 3, the three leg portions 5 to 7 are metal plate members attached to the lower portion of the compressor main body 2, and project horizontally, for example, radially outward of the compressor main body 2. ing. The leg portions 5 to 7 are rectangular, and the longitudinal direction is along the radial direction of the compressor body 2. Each of the three leg portions 5 to 7 is formed with a through-hole through which a support column 16 to be described later passes.

  As shown in FIG. 2 and FIG. 3, the three anti-vibration rubbers 8 to 10 (elastic members) are substantially cylindrical rubber members and suppress the vibration from the compressor body 2 from being transmitted to the bottom plate 1. doing. A support column 16 welded to the mounting bases 13 to 15 is inserted inside the anti-vibration rubbers 8 to 10. The upper ends of the three columns 16 are male threaded portions, and are fastened by nuts 17 above the legs 5-7. As a result, the compressor body 2 is fixed on the bottom plate.

  As shown in FIG. 3, all of the three anti-vibration rubbers 8 to 10 are in a first position that is + 90 ° (90 ° clockwise in the circumferential direction) away from the suction pipe 3 b outside the compressor body 2 in a plan view. A first range S1 of ± 45 ° (including ± 45 ° as an end) centered on P1 and a second position P2 that is -90 ° (90 ° counterclockwise in the circumferential direction) away from the suction pipe 3b. Arranged in the second range S2 of ± 45 ° (including ± 45 ° as an end) as the center. Similarly, the three leg portions 5 to 7 arranged above the three antivibration rubbers 8 to 10 are also arranged in the first range S1 and the second range S2.

  The first position P1 is a set of positions (innumerable positions) separated by + 90 ° from the suction pipe 3b on the outside of the compressor body 2 in plan view, and the second position P2 is the position of the compressor body 2 in plan view. This is a set of positions (infinite positions) that are -90 ° apart from the suction pipe 3b on the outside. A line L1 (one-dot chain line in FIG. 3) connecting (passing) the first position P1 and the second position P2 is a line along a direction orthogonal to the mounting direction of the accumulator 3 in a plan view. It passes through the center of 2.

  As shown in FIG. 3, two anti-vibration rubbers 8 and 9 out of the three anti-vibration rubbers 8 to 10 are arranged in the first range S1, and the remaining one anti-vibration rubber 10 is arranged in the second range S2. Is done. Therefore, at least one anti-vibration rubber is disposed in each of the first range S1 and the second range S2. The two anti-vibration rubbers 8 and 9 arranged in the first range S1 are symmetric with respect to a line L1 connecting the first position P1 and the second position P2. The anti-vibration rubber 10 disposed in the second range S2 is on a line L1 connecting the first position P1 and the second position P2.

  In the present invention, the fact that the anti-vibration rubber is disposed in the first range S1 and the second range S2 means that the center of gravity of the anti-vibration rubber is in the first range S1 and the second range S2 in plan view. Further, that the vibration isolating rubber is disposed on the line L1 connecting the first position P1 and the second position P2 means that at least a part of the vibration isolating rubber is on the line L1 in a plan view.

  In the outdoor unit in which the accumulator 3 is arranged on the side of the compressor body 2 as described above, the weight of the accumulator 3 is eccentric in the direction deviating from the center of the compressor body 2. For this reason, the compressor body 2 is likely to vibrate in a direction (orthogonal direction) orthogonal to the mounting direction of the accumulator 3 in plan view. However, in this outdoor unit, all of the three anti-vibration rubbers 8 to 10 are positions where the vibration of the compressor body 2 in the direction orthogonal to the mounting direction of the accumulator 3 can be easily reduced. Since it arrange | positions in range S2, it is suppressed that the compressor main body 2 vibrates in the direction orthogonal to the attachment direction of the accumulator 3. FIG.

  In addition, vibration isolation rubber becomes easy to reduce the vibration to the direction orthogonal to the attachment direction of the accumulator 3, so that it is near the 1st position P1 or the 2nd position P2. When the vibration isolating rubber is on the line L1 connecting the first position P1 and the second position P2, vibration in the direction orthogonal to the mounting direction of the accumulator 3 is most easily reduced. On the other hand, the vibration-proof rubber becomes easier to reduce the vibration in the mounting direction of the accumulator 3 as it is closer to the position where the suction pipe 3b is arranged or the position opposite to the suction pipe 3b (position 180 ° apart). In the case where the anti-vibration rubber is disposed at a position that is ± 45 ° away from the first position P1 and a position that is ± 45 ° away from the second position P2, the amount of vibration reduction in the mounting direction of the accumulator 3 is The amount of vibration reduction in the direction orthogonal to the mounting direction of the accumulator 3 is substantially the same. Therefore, a position that is ± 45 ° away from the first position P1 and a position that is ± 45 ° away from the second position P2 is a boundary that determines which vibration in the mounting direction or the orthogonal direction is likely to be reduced.

<Features of outdoor unit of this embodiment>
The outdoor unit of this embodiment has the following characteristics. In this outdoor unit, all the anti-vibration rubbers 8 to 10 (elastic members) are placed in the first range S1 and the second range S2, which are positions where vibrations of the compressor body 2 in a direction orthogonal to the mounting direction of the accumulator 3 are easily reduced. ) Is arranged, it is possible to suppress the compressor main body 2 from vibrating in a direction orthogonal to the mounting direction of the accumulator 3.

  Moreover, in the outdoor unit of this embodiment, since at least one anti-vibration rubber (elastic member) is disposed in each of the first range S1 and the second range S2, the direction perpendicular to the mounting direction of the accumulator 3 The compressor body 2 is fixed to the bottom plate 1 with a good balance. Therefore, the compressor main body 2 is less likely to vibrate in a direction orthogonal to the mounting direction of the accumulator 3.

  Further, in the outdoor unit of the present embodiment, the first position P1 and the second position P2, which are the positions where vibrations of the compressor body 2 in the direction orthogonal to the direction in which the accumulator 3 is attached in the plan view are most easily reduced, are connected. Since the anti-vibration rubber 10 (elastic member) is disposed on the elliptic line L1, the compressor body 2 is less likely to vibrate in a direction orthogonal to the direction in which the accumulator 3 is attached.

[Second Embodiment]
Next, the outdoor unit according to the second embodiment will be described with reference to FIG. This outdoor unit is different from the first embodiment in the number and arrangement positions of leg portions and vibration-proof rubbers (elastic members). In addition, about the outdoor unit of 2nd Embodiment which has the structure similar to the outdoor unit of 1st Embodiment, the description is abbreviate | omitted suitably using the same code | symbol.

  As shown in FIG. 4, the fixing mechanism 20 according to the present embodiment includes four legs 21 to 24 provided on the compressor body 2, four legs 21 to 24, and four attachments formed on the bottom plate. It has four anti-vibration rubbers 25 to 28 (elastic members) sandwiched between the base.

  All of the four anti-vibration rubbers 25 to 28 (elastic members) are arranged in the first range S1 and the second range S2, as shown in FIG. In addition, the leg parts 21-24 arrange | positioned above the four anti-vibration rubbers 25-28 are also arrange | positioned like the four anti-vibration rubbers 25-28 in the 1st range S1 and the 2nd range S2.

  As shown in FIG. 4, two anti-vibration rubbers 25 and 26 among the four anti-vibration rubbers 25 to 28 are arranged in the first range S1, and the remaining two anti-vibration rubbers 27 and 28 are arranged in the second range S2. Placed in. The two anti-vibration rubbers 25 and 26 arranged in the first range S1 and the two anti-vibration rubbers 27 and 28 arranged in the second range S2 are lines connecting the first position P1 and the second position P2, respectively. Symmetric with respect to L1. Further, the anti-vibration rubber 25 and the anti-vibration rubber 27, and the anti-vibration rubber 26 and the anti-vibration rubber 28 are orthogonal to the line L1 connecting the first position P1 and the second position P2 in a plan view, respectively, and the compressor. It is symmetrical with respect to a line L2 (a line along the mounting direction of the accumulator 3) passing through the center of the main body 2.

<Features of outdoor unit of this embodiment>
The outdoor unit of this embodiment has the following characteristics. In this outdoor unit, the anti-vibration rubber 25 arranged in the first range S1 and the anti-vibration rubber 27 arranged in the second range S2, and the anti-vibration rubber 26 arranged in the first range S1 and the second range S2. The anti-vibration rubber 28 disposed is symmetrical with respect to a line L2 that is orthogonal to the line L1 that connects the first position P1 and the second position P2 and passes through the center of the compressor body 2 in plan view. . Therefore, vibrations acting on the vibration isolating rubbers 25 and 27 and the vibration isolating rubbers 26 and 28 (vibration in the direction in which the accumulator 3 is attached and vibration in a direction perpendicular to the direction in which the accumulator 3 is attached) are substantially the same. Therefore, the vibration in the mounting direction of the accumulator 3 and the vibration of the compressor body 2 in the direction orthogonal to the mounting direction of the accumulator 3 can be further reduced.

  As mentioned above, although embodiment of this invention was described based on drawing, it should be thought that a specific structure is not limited to these embodiment. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and further includes meanings equivalent to the scope of claims for patent and all modifications within the scope.

  In the above embodiment, three or four anti-vibration rubbers (elastic members) are provided, but the number of anti-vibration rubbers may be two, or five or more. However, from the viewpoint of fixing the compressor body 2 to the bottom plate 1 in a well-balanced manner, it is preferable to provide three or more anti-vibration rubbers.

  In the second embodiment, the anti-vibration rubber (elastic member) arranged in the first range S1 and the anti-vibration rubber (elastic member) arranged in the second range S2 are in the first position in plan view. Although it arrange | positions symmetrically with respect to the line L2 orthogonal to the line L1 which ties P1 and the 2nd position P2, and passes through the center of the compressor main body 2, it does not need to be arrange | positioned symmetrically with respect to the line L2.

  Moreover, in the said 1st Embodiment, although the anti-vibration rubber | gum 10 (elastic member) is arrange | positioned on the line L1 which ties the 1st position P1 and the 2nd position P2, the 1st position P1 and the 2nd position P2 are arranged. The anti-vibration rubber may not be disposed on the connecting line L1.

  Moreover, in the said 1st and 2nd embodiment, although a leg part and vibration isolating rubber are the same number, even if a leg part consists of one leg part formed wide in the circumferential direction of the compressor main body 2, it is. It may be composed of a plurality of leg portions that are less than the number of anti-vibration rubbers. Therefore, two or more anti-vibration rubbers may be disposed between one leg and the bottom plate.

  If this invention is utilized, it can suppress that a compressor main body vibrates in the direction orthogonal to the attachment direction of an accumulator in planar view.

DESCRIPTION OF SYMBOLS 1 Bottom plate 2 Compressor main body 3 Accumulator 3b Suction pipe 4 Fixing mechanism 5-7, 21-24 Leg part 8-10, 25-28 Anti-vibration rubber (elastic member)

Claims (4)

A compressor body fixed on the bottom plate;
An accumulator disposed on the side of the compressor body;
A suction pipe connected to an outer peripheral surface of the compressor body, and sucking refrigerant from the accumulator into the compressor body;
A fixing mechanism for fixing the compressor body to the bottom plate,
The fixing mechanism is
One or more legs provided on the compressor body and projecting radially outward of the compressor body;
A plurality of elastic members provided between the leg and the bottom plate;
In plan view, the first range of ± 45 ° centered on the first position + 90 ° away from the suction pipe and the second position -90 ° away from the suction pipe outside the compressor body. All of the plurality of elastic members are disposed in a second range of ± 45 °.   The outdoor unit according to claim 1, wherein the elastic member is disposed in each of the first range and the second range.   The elastic member arranged in the first range and the elastic member arranged in the second range are orthogonal to a line connecting the first position and the second position in plan view, and the compressor The outdoor unit according to claim 2, wherein the outdoor unit is arranged symmetrically with respect to a line passing through the center of the main body.   The outdoor unit according to any one of claims 1 to 3, wherein the elastic member is disposed on a line connecting the first position and the second position.