CN108603672B - Outdoor unit of air conditioner - Google Patents
Outdoor unit of air conditioner Download PDFInfo
- Publication number
- CN108603672B CN108603672B CN201780009929.2A CN201780009929A CN108603672B CN 108603672 B CN108603672 B CN 108603672B CN 201780009929 A CN201780009929 A CN 201780009929A CN 108603672 B CN108603672 B CN 108603672B
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- China
- Prior art keywords
- plate portion
- support member
- upstream
- outdoor unit
- support
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/46—Component arrangements in separate outdoor units
- F24F1/48—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow
- F24F1/50—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow with outlet air in upward direction
Abstract
An outdoor unit (1) of an air conditioner is provided with: a heat exchanger (2) that exchanges heat with outside air; a fan (4) for generating an air flow for promoting heat exchange of the heat exchanger (2); a motor (5) for driving the fan (4); a case (7) in which the fan (4) and the motor (5) are disposed; and a support member (6) erected in the case (7). The support member (6) has: a substrate section (60) formed in the direction of the air flow; a support plate section (62) that extends from the downstream side of the substrate section (60) in the direction opposite to the direction of the air flow; and a counter plate section (63) that projects from the upstream side of the base plate section (60) in the direction of the airflow and has a smaller projection amount than the support plate section (62). The cross-sectional shape of the support member (6) is formed in a substantially U-shape.
Description
Technical Field
The present invention relates to an outdoor unit of an air conditioner.
Background
Conventionally, as an air conditioner, there is a multi-type air conditioner for a high-rise building in which a plurality of indoor units are connected to one or more outdoor units. In general, a multi-type air conditioner for a high-rise building forms a refrigerant circuit for circulating a refrigerant by connecting an outdoor unit installed on a roof of the high-rise building and indoor units installed in respective rooms of the high-rise building by pipes.
An outdoor unit of a conventional air conditioner is formed in a rectangular parallelepiped shape, and heat exchangers are provided on side surfaces and a rear surface of the outdoor unit, and a compressor and other components are provided on an inner bottom of the outdoor unit. Further, a fan, a motor for driving the fan, and a support member (motor support member) for supporting the motor are provided in an upper portion of the outdoor unit.
The motor of the outdoor unit of this type is mounted on a support member (support plate) that is mounted on the inner wall of the casing (see, for example, patent document 1). The support member described in patent document 1 is disposed below the fan in the case. The fan is driven by the motor to suck outside air into the box body through the heat exchanger, and the air is blown from below to above of the fan. The support member is disposed opposite the air flow.
In the conventional outdoor unit, the support member is reinforced by being bent in a vertical sectional shape to be a substantially concave shape in order to support the motor as a heavy object. A rectangular opening through which air passes is formed in front and rear of the horizontal flat plate portion of the support member.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2014-211143
Disclosure of Invention
Problems to be solved by the invention
However, the support member of the outdoor unit disclosed in patent document 1 is disposed so as to face the airflow from below, and therefore has the following problems: when the fan is used to supply air, air resistance is generated. Therefore, a large input current is required for driving the fan, and the support member causes a reduction in the performance of the fan.
In view of the above problems, an object of the present invention is to provide an outdoor unit of an air conditioner, which reduces air resistance of a support member and improves fan performance.
Means for solving the problems
In order to solve the above problem, an outdoor unit of an air conditioner according to the present invention includes: a heat exchanger that exchanges heat with outside air; a fan for generating an air flow for promoting heat exchange of the heat exchanger; a motor for driving the fan; a case in which the fan and the motor are disposed; and a support member that is erected in the case, the support member including: a substrate portion formed in a direction of the air flow; a support plate portion extending from a downstream side of the substrate portion so as to face in a direction of an air flow; and an opposing plate portion that protrudes from an upstream side of the substrate portion so as to face the direction of the airflow and has a protruding amount smaller than that of the support plate portion, wherein the support member is formed in a substantially U-shape in cross section.
Effects of the invention
The outdoor unit of the air conditioner of the invention reduces air resistance by changing the shape of the supporting component arranged in the box body, thereby reducing the input current for driving the fan and improving the performance of the fan.
Drawings
Fig. 1 is a schematic front view, partially in cross section, showing the structure of an outdoor unit of an air conditioner according to an embodiment of the present invention.
Fig. 2 is a schematic side view, partially in cross section, showing the configuration of an outdoor unit of an air conditioner according to an embodiment of the present invention.
Fig. 3 is a schematic plan view showing a structure of an outdoor unit of an air conditioner according to an embodiment of the present invention, with a partial cross section.
Fig. 4 is a perspective view showing a support member that supports the motor.
Fig. 5 is an enlarged sectional view taken along line I-I of fig. 4.
Fig. 6 is an enlarged vertical cross-sectional view showing a first modification of the support member.
Fig. 7 is an enlarged vertical cross-sectional view showing a second modification of the support member.
Fig. 8 is an enlarged vertical cross-sectional view showing a third modification of the support member.
Fig. 9 is an enlarged vertical cross-sectional view showing a fourth modification of the support member.
Fig. 10 is an enlarged vertical cross-sectional view showing a fifth modification of the support member.
Fig. 11 is an enlarged vertical cross-sectional view showing a sixth modification of the support member.
Fig. 12 is an enlarged vertical cross-sectional view showing a seventh modification of the support member.
Detailed Description
Next, an outdoor unit of an air conditioner according to an embodiment of the present invention will be described with reference to fig. 1 to 5.
In the following, the same reference numerals are given to the same components in the drawings of the respective embodiments and the first to seventh modifications described later, and the description thereof will be omitted.
The outdoor unit 1 of the air conditioner is provided with: a fan 4; a motor 5 for rotationally driving the fan 4; and a support member 6 disposed so as to be bridged over the air passage of the air flow generated by the fan 4, and the structure and the like are not particularly limited. The supporting member 6 is not particularly limited as long as it is disposed in the air passage in the casing 7, and the object supported by the supporting member 6 may be a component of the outdoor unit 1 such as a stay or may be a device such as the motor 5.
Hereinafter, an outdoor unit 1 of an air conditioner will be described as an example of an embodiment of the present invention, in which an upward fan 4 is driven by a motor 5 supported by a support member 6 to send air in an upward direction. For convenience, the upper side of the outdoor unit 1 shown in fig. 1 is referred to as the downstream side, and the lower side is referred to as the upstream side.
< air conditioner >
The air conditioner includes an outdoor unit 1 disposed outdoors as shown in fig. 1, and an indoor unit (not shown) connected to the outdoor unit 1 by a pipe and disposed indoors. The outdoor unit 1 includes a compressor 3 in a refrigeration cycle of an air conditioner; a four-way valve (not shown); an outdoor heat exchanger 2 (see fig. 3); an outdoor blower 40 including a fan 4 and a motor 5; and an expansion valve (not shown).
< outdoor unit >
The outdoor unit 1 is an outdoor unit of a multi-type air conditioner for a high-rise building. The outdoor unit 1 includes: a heat exchanger 2 that exchanges heat with outside air; a fan 4 for generating an air flow for promoting heat exchange of the heat exchanger 2; a motor 5 for driving the fan 4; a support member 6 supporting the motor 5; and a case 7 (see fig. 3) on which the support member 6 is mounted. The outdoor unit 1 sucks outside air from the outdoor unit 1 by rotating the fan 4 by the motor 5, exchanges heat with the heat exchanger 2 (see fig. 3), and discharges the heat to the atmosphere. The air inside the outdoor unit 1 flows by the rotation of the fan 4, is sucked into the outdoor unit 1 from three left and right front sides of the heat exchanger 2 (see fig. 3), and flows upward (in the direction of arrow a) from the upper opening.
< case >
As shown in fig. 3, the casing 7 is a main body casing of the outdoor unit 1, and is formed in a substantially rectangular parallelepiped shape with a hollow interior, for example. The case 7 has: a bottom plate 71 provided on the lower surface of the case 7; a front plate 72 provided upright on the bottom plate 71 at a front end portion thereof; side plates 73, 74 provided upright at left and right ends of the bottom plate 71; and a rear plate 75 erected on the rear end portion of the bottom plate 71 and formed in a rectangular shape in plan view. A bell mouth and hood 78 (see fig. 1) is provided at an upper portion of the case 7, and the bell mouth and hood 78 has an opening (not shown) for discharging the air flow generated by the blower 40 to the outside.
The base plate 71 carries the compressor 3 and the electric box (see fig. 1).
A front stay 76 is provided on the inner wall of the front plate 72 so as to face the left-right direction.
A plurality of suction ports (not shown) for taking in outside air by suction of the blower 40 are formed in the left and right side plates 73, 74 and the rear plate 75. The heat exchanger 2 is provided on the inner wall side of the side plates 73 and 74 and the rear plate 75.
A rear side support plate 77 is provided on the upper portion of the inner wall of the rear plate 75 in the left-right direction.
Between the front stay 76 and the rear stay 77, the pair of support members 6 are arranged in parallel with an appropriate interval in a plan view.
< blower >
As shown in fig. 1, the blower 40 is a device for returning outside air sucked through suction ports (not shown) of the side plates 73 and 74 and the rear plate 75 to the outside from an opening (not shown) of the bell mouth/hood 78 above through the heat exchanger 2 (see fig. 3). The blower 40 includes: a motor 5 having a motor shaft 51 (refer to fig. 4) protruding in an upward direction; and a fan 4 connected to a front end portion of the motor shaft 51. The blower 40 is disposed in a bell mouth and hood 78 in the upper part of the outdoor unit 1.
< Motor >
As shown in fig. 3, the motor 5 is an electric motor for rotationally driving the fan 4. The motor 5 is disposed at an upper portion in the case 7 by being supported at a central portion of a pair of left and right support members 6 extending between the front side stay 76 and the rear side stay 77. As shown in fig. 4, the motor 5 includes: the motor shaft 51; a motor housing 52 in which the motor shaft 51 is disposed so as to protrude upward; and a pair of motor brackets 53 formed to protrude from the lower end portion of the outer peripheral portion of the motor case 52 in the left-right direction.
The motor shaft 51 is inserted into a boss portion of the fan 4, and a fan fixing nut 54 (see fig. 1) for fixing the fan 4 to the motor shaft 51 is screwed to a front end of the motor shaft 51.
The motor case 52 is formed of a substantially cylindrical case. A motor bracket 53 for mounting the motor case 52 between the pair of left and right support members 6 is integrally formed with the motor case 52.
The motor holder 53 is formed of four flat plate-like (substantially belt-like) members extending in the left-right direction from left and right front and rear end portions of the lower end of the outer peripheral portion of the motor case 52. A screw insertion hole 53a into which a bracket fixing screw 55 is inserted is formed at the tip end of each motor bracket 53.
< Fan >
As shown in fig. 2, the fan 4 is, for example, an axial-flow propeller fan connected to a rotating shaft of the motor 5. The fan 4 is formed by integrally molding a cylindrical fan boss portion formed in the central portion and blade portions formed to protrude from the outer peripheral surface of the fan boss portion with resin.
< Heat exchanger, compressor >
As shown in fig. 2, the heat exchanger 2 is provided on side plates 73 and 74 (see fig. 3) forming side surfaces and a rear plate 75 forming a rear surface in the casing 7.
As shown in fig. 1, the compressor 3 is carried on a bottom plate 71 of the casing 7.
< support part >
As shown in fig. 5, the support member 6 is a pair of left and right motor fixtures extending in the front-rear direction at the upper portion in the case 7 (see fig. 1 and 2) and holding the motor 5 (motor bracket 53) from below. The support member 6 has: a substrate portion 60 formed in the direction of the air flow; a support plate portion 62 formed by bending the bent portion 6a at the downstream end of the substrate portion 60; a counter plate portion 63 formed by bending the bent portion 6b at the upstream end of the substrate portion 60; and a cover plate portion 61 (see fig. 4) formed by bending the front and rear end portions of the substrate portion 60.
Both ends of the support member 6 extend from the inner wall of the front plate 72 to the inner wall of the rear wall in the case 7, and are screwed to the inner wall of the case 7 (see fig. 3). The support member 6 is formed in a substantially コ -shaped (substantially U-shaped) cross-sectional shape by bending two bent portions 6a and 6b that form one metal plate in order to increase the support strength of the motor 5 (see fig. 1 and 2) that supports a heavy object. The pair of support members 6 are disposed to face the base plate portion 60 in the right and left direction below the fan 4 (see fig. 1). The support member 6 is made of a metal plate such as a hot-dip galvanized steel plate having a thickness of about 2.3mm, for example.
The bent portions 6a and 6b are portions for horizontally forming corners of the support plate portion 62 and the opposing plate portion 63 by bending upper and lower end portions of the vertical substrate portion 60 at right angles to the left direction. The corners of the bent portions 6a and 6b are formed with R (rounded corner) of a standard size.
The substrate portion 60 is a portion forming a side surface of the support member 6. The substrate portion 60 is disposed along the airflow direction (vertical direction), and extends (protrudes) in a flat plate shape in the front-rear direction. The vertical length of the base plate portion 60 is, for example, about 30mm, and is formed longer than the length of the screw portion of the bracket fixing screw 55.
The support plate portion 62 is a portion on which the motor bracket 53 is mounted and which supports the motor 5 (see fig. 1 and 2) from below, and forms an upper surface of the support member 6. The support plate 62 is horizontally extended from the downstream side of the substrate 60 so as to face the direction of the air flow (vertical direction). The support plate portion 62 is formed with female screws to which bracket fixing screws 55 (not shown) are screwed at positions matching the screw insertion holes 53a (see fig. 4).
Since the support plate portion 62 and the opposing plate portion 63 are bent so as to extend from the base plate portion 60, the support member 6 is formed in a substantially U-shape (substantially コ -shape) in vertical section. The protruding portions of the support plate portion 62, the opposing plate portion 63, and the like may be formed by welding or the like, or may be formed by other methods in combination with bending.
The opposing plate 63 is a portion where the airflow collides, and forms the lower surface of the support member 6. The opposing plate portion 63 is horizontally extended from the upstream side of the substrate portion 60 so as to face the direction of the air flow. A length (projecting amount) L1 (for example, about 22 to 32 mm) from the base plate portion 60 to the front end of the opposing plate portion 63 is formed smaller than a length (projecting amount) L2 from the base plate portion 60 to the front end of the support plate portion 62. In other words, the area of the opposing plate portion 63 is smaller than the area of the support plate portion 62. Further, the area refers to a front projection area with respect to the airflow.
As shown in fig. 4, the cover plate portion 61 is formed of a rectangular projecting piece which is bent into an L shape in plan view so as to be disposed between the support plate portion 62 and the opposing plate portion 63 of the support member 6 which is bent into an approximately コ shape (approximately U shape) in front view. A screw insertion hole 61a (see fig. 3) into which the support member fixing screw 68 is inserted is formed in the center portion of each cover plate portion 61, and the support member fixing screw 68 is used to fix the support member 6 to the front side stay 76 and the rear side stay 77.
Action
Next, an operation of the outdoor unit of the air conditioner according to the embodiment of the present invention will be described with reference to fig. 1 to 5.
As shown in fig. 1, when the motor 5 is rotationally driven, the outdoor unit 1 of the air conditioner rotates the fan 4 via the motor shaft 51 (see fig. 4). In this way, the fan 4 sucks the outside air around the outer periphery of the outdoor unit 1 from the left and right rear three surfaces into the outdoor unit 1, performs heat exchange in the heat exchanger 2 (see fig. 3), and then conveys the air upward (in the direction of arrow a) from the upper opening of the bell mouth and shroud 78 and discharges the air to the atmosphere. Therefore, as shown in fig. 3, the air (arrow b) sucked into the casing 7 by the fan 4 flows through the heat exchanger 2, and the heat exchange between the refrigerant and the air is promoted.
As shown in fig. 1, since air flows from below to above in the case 7, the support member 6 is disposed in a state facing the flow (airflow) of air.
As shown in fig. 5, the support member 6 formed in an コ shape (substantially U shape) in a vertical sectional view is formed such that the area (protruding amount) of the opposite plate section 63 facing the airflow in the outdoor unit 1 (see fig. 1) is smaller than the area (protruding amount) of the support plate section 62 disposed on the downstream side of the opposite plate section 63. In this way, the area (projecting amount) of the surface of the support member 6 facing the airflow inside the outdoor unit 1 (see fig. 1) is made small, so that the amount of air colliding with the opposing plate portion 63 can be reduced.
The air flowing from the lower direction toward the upper direction so as to collide with the support member 6 collides with the opposing plate portion 63, changes direction so as to be separated in the left-right direction, and flows in the downstream direction so as to spread in the left-right direction. Therefore, the support member 6 can make the inflow angle of the air flowing in the downstream direction gentle so as to flow while avoiding the support plate portion 62.
Further, since the support member 6 is formed such that the area of the support plate portion 62 on the downstream side is larger than the area of the opposing plate portion 63, the motor 5 (the motor bracket 53) can be stably supported. Further, since the support member 6 can flow the air (arrows c and d) in the downstream direction so as to gradually expand in the left-right direction, the air can be smoothly flowed, and the air resistance (resistance coefficient) can be reduced. Further, the substrate portion 60 is formed in the vertical direction, thereby functioning to rectify the air flow.
As described above, since the air resistance of the support member 6 can be reduced, the input current of the motor 5 for driving the fan 4 can be reduced, and the performance of the fan 4 of the outdoor unit 1 can be improved (see fig. 1). In addition, the support member 6 can reduce noise (wind noise) generated by the airflow striking the support member 6 by reducing air resistance.
As shown in fig. 4 or 5, when the support member 6 is manufactured, first, a cutting step of cutting a single metal plate is performed to form the base plate portion 60, the support plate portion 62, the opposing plate portion 63, and the cover plate portion 61. Then, a thread forming step of forming a female thread portion (not shown) in the support plate portion 62 and a drilling step of forming a screw insertion hole 61a in the cover plate portion 61 are performed. Then, the support member 6 can be completed by performing a bending step of bending the support plate portion 62, the opposing plate portion 63, and the cover plate portion 61 at right angles to the base plate portion 60.
As described above, the support member 6 can be manufactured by easily performing press working by cutting and bending one metal plate. Therefore, the number of manufacturing steps and the number of components of the support member 6 are reduced, and the support member can be manufactured in a short time, thereby reducing the cost.
The support member 6 formed in this manner is formed in a substantially コ shape (substantially U-shape) in vertical cross section by bending the bent portions 6a and 6b at the downstream end and the upstream end of the substrate portion 60, and two ridge lines are formed at the upper and lower ends of the substrate portion 60. Therefore, the support member 6 can improve the support strength with respect to the load in the vertical direction, and ensure the strength capable of stably supporting the blower 40 (see fig. 1).
[ modified examples ]
The present invention has been described above based on the embodiments, but the present invention is not limited to the configurations described in the above embodiments, and the configurations described in the embodiments may be appropriately combined or selected, and may be appropriately modified within a range not departing from the gist thereof.
[ first modification ]
Fig. 6 is an enlarged vertical cross-sectional view showing a first modification of the support member of the outdoor unit.
In the above embodiment, the コ -shaped (substantially U-shaped) support member is illustrated as an example of the support member 6 (see fig. 5) in a vertical cross section, but the invention is not limited thereto. As shown in fig. 6, the support member 6A may have an upstream-side rectification plate portion 64A, and the upstream-side rectification plate portion 64A may be formed by bending an upstream-side end portion of the opposing plate portion 63A in an upstream direction, and may have a function of rectifying the air flow.
In this case, the support member 6A is formed with an upstream-side flow rectification plate portion 64A, and the upstream-side flow rectification plate portion 64A bends a bent portion 6Aa formed at the left end portion of the opposing plate portion 63A at right angles to the upstream direction and extends downward. The length (projecting amount) L3 from the right end to the left end of the opposing plate portion 63A is set to about half the length (projecting amount) L2 from the right end to the left end of the support plate portion 62A. The upstream rectification plate portion 64A is disposed in the center portion of the support member 6A in a bottom view.
Therefore, the base plate portion 60A, the support plate portion 62A, the opposing plate portion 63A, and the upstream rectification plate portion 64A of the support member 6A are arranged so that the entire arrangement is inside a range imagined as an inverted triangle in a side view, and the arrangement is such that the airflow flowing downstream gradually expands in the lateral direction and the air resistance decreases.
The air flowing toward the support member 6A formed in this manner collides with the distal end surface of the upstream flow rectification plate portion 64A, changes direction, and is divided into flows toward the substrate portion 60A (arrow e side) and the distal end side of the support plate portion 62A (arrow f side). The halved air flows in the downstream direction as a flow along the upstream flow straightening plate portion 64A extending in the upstream direction to some extent.
The air redirected toward the tip end surface of the upstream rectification plate portion 64A flows so that the inflow angle thereof becomes gentle with respect to the support plate portion 62A, and therefore flows so that the collision amount with the support plate portion 62A is reduced.
The flow of air (arrows e and f) redirected toward the tip end surface of the upstream rectification plate portion 64A flows downstream along the substrate portion 60A. Therefore, the amount of collision of air with the respective surfaces of the support member 6A (the upstream rectification plate portion 64A, the opposing plate portion 63A, the substrate portion 60A, and the support plate portion 62A) is smaller than that of the support member 6 of the embodiment, and noise and air resistance (resistance coefficient) are small, so that the air flows easily. As a result, the input current for driving blower 40 (see fig. 1) can be reduced.
[ second modification ]
Fig. 7 is an enlarged vertical cross-sectional view showing a second modification of the support member for supporting the motor.
As shown in fig. 7, the support member 6B may include an R portion R1 formed by bending an upstream end portion of the upstream rectification plate portion 64B in the downstream direction, and a folded plate portion 65B formed by folding the upstream end portion in the downstream direction from the R portion R1.
In this case, the R portion R1 is a bent portion formed by extending the upstream side of the upstream rectification plate portion 64B similar to the upstream rectification plate portion 64A (see fig. 6) of the first modification described above and folding back 180 degrees toward the downstream side. The outer peripheral surface of the R1 is formed in a semicircular shape in cross section. The R portion R1 is disposed in the center of the support member 6B in bottom view. The R portion R1 functions to smooth the air flow and to increase the strength.
The folded plate portion 65B is disposed on the left side of the upstream rectification plate portion 64B in parallel to the downstream direction along the upstream rectification plate portion 64B.
The air flowing toward the support member 6B formed in this way collides with the R portion R1 at the upstream end, changes its flow direction, and is dispersed into a flow (arrow g) flowing along the upstream rectification plate portion 64B and the substrate portion 60B and a flow (arrow h) flowing along the folded plate portion 65B.
The air flow (arrow g) whose flow direction changes to the right side of the support member 6B at the R portion R1 has a gentle inflow angle with respect to the opposing plate portion 63B. Therefore, the amount of collision of the air with the opposing plate portion 63B is reduced. The air flow (arrow h) whose flow direction changes to the left side of the support member 6B at the R portion R1 becomes a flow flowing in an obliquely upward left direction from the R portion R1 so as to avoid the support plate portion 62B.
Therefore, the collision amount of the air colliding with each surface of the support member 6B is reduced. This reduces both air resistance and noise, and reduces the input current of the motor 5 for driving the fan 4 (see fig. 1).
[ third modification ]
Fig. 8 is an enlarged vertical cross-sectional view showing a third modification of the support member for supporting the motor.
As shown in fig. 8, the support member 6C may have an upstream-side facing plate portion 66C formed by bending an upstream-side end portion of the upstream flow rectification plate portion 64C so as to extend along the facing plate portion 63C.
In this case, the support member 6C includes an upstream facing plate portion 66C formed by bending the bent portion 6Ca at the upstream end portion of the upstream rectification plate portion 64C in a direction opposite to the airflow direction. The upstream facing plate portion 66C is formed in the left-right direction at right angles to the upstream flow rectification plate portion 64C formed in the airflow direction. The upstream-side opposite plate portion 66C is disposed substantially at the center of the support member 6C in a bottom view. The area (amount of projection) of the upstream side opposite plate portion 66C is formed smaller than the area (amount of projection) of the opposite plate portion 63C. The area (amount of projection) of the opposing plate portion 63C is formed smaller than the area (amount of projection) of the support plate portion 62C.
In this way, the air flowing through the support member 6C formed in a substantially inverted S shape when viewed from the side collides with the upstream-side opposite plate portion 66C, and the direction of the flow changes. The redirected air is dispersed into an air flow (arrow i) having a gentle inflow angle toward the opposite plate portion 63C and the substrate portion 60C, and an air flow (arrow j) flowing toward the left end portion side of the support plate portion 62C so as to follow the upstream rectification plate portion 64C. Further, since the support member 6C having a substantially inverted S-shape in side view is formed with the plurality of bent portions 6Ca and the ridge lines, the overall strength can be improved.
The air flow (arrow i) whose flow direction changes toward the right side of the support member 6C at the upstream-side opposite plate portion 66C flows in the downstream direction so as to avoid the support plate portion 62C. The air flow (arrow j) whose flow direction changes to the left side of the support member 6C at the upstream side opposing plate portion 66C has a gentle inflow angle with respect to the opposing plate portion 63C, and the amount of collision of the air with the lower surface of the opposing plate portion 63C is reduced.
Therefore, the collision amount of the air colliding with each surface of the support member 6C is reduced. This reduces the air resistance of the support member 6C and reduces the input current of the motor 5 for driving the fan 4 (see fig. 1).
[ fourth modification ]
Fig. 9 is an enlarged vertical cross-sectional view showing a fourth modification of the support member for supporting the motor.
As shown in fig. 9, the support member 6D may have a downstream flow straightening plate portion 67D bent in the downstream direction from the support plate portion 62D.
In this case, the support member 6D includes a downstream rectification plate portion 67D that bends the bent portion 6Da at the left end portion of the support plate portion 62D toward the downstream side and extends in the downstream direction. The downstream flow straightening plate portion 67D is formed in an upward direction at right angles to the support plate portion 62D formed in a direction (horizontal direction) orthogonal to the airflow direction. The downstream flow straightening plate portion 67D is disposed at the left end of the support member 6D in plan view.
The air flowing toward the support member 6D formed in this manner collides with the opposing plate portion 63D, and the flow direction changes in the left-right (arrow k, m) direction. The air (arrow k) flowing to the right side of the opposing plate portion 63D flows in the downstream direction along the substrate portion 60D. The air (arrow m) flowing to the left side of the opposing plate portion 63D flows to the downstream side so as to avoid the support plate portion 62D, and is rectified by the left side surface of the downstream-side rectification plate portion 67D to flow to the downstream side along the downstream-side rectification plate portion 67D.
Therefore, the collision amount of the air colliding with each surface of the support member 6D is reduced. The support member 6D can reduce the air resistance by rectifying the flow on the downstream side, and thus can reduce the input current of the motor 5 for driving the fan 4 (see fig. 1).
[ fifth modification ]
Fig. 10 is an enlarged vertical cross-sectional view showing a fifth modification of the support member for supporting the motor.
As shown in fig. 10, the support member 6E having the upstream-side flow straightening plate portion 64E may have a downstream-side flow straightening plate portion 67E bent in the downstream direction from the support plate portion 62E, similarly to the support member 6D (see fig. 9) of the fourth modification.
In this case, the support member 6E includes the base plate portion 60E, the support plate portion 62E, the opposing plate portion 63E, and the upstream rectification plate portion 64E, and further includes the downstream rectification plate portion 67E extending in the downstream direction from the support plate portion 62E, similarly to the support member 6A (see fig. 6) of the first modification. The substrate portion 60E, the upstream flow straightening plate portion 64E, and the downstream flow straightening plate portion 67E formed in the vertical direction have a straightening function of linearly flowing air in the downstream direction.
In this way, by providing the downstream-side flow rectification plate portion 67E that extends in the downstream direction while bending the bent portion 6Ea of the support plate portion 62E at right angles, the support member 6E can rectify the downstream-side airflow and reduce the air resistance, as in the fourth modification.
[ sixth modification ]
Fig. 11 is an enlarged vertical cross-sectional view showing a sixth modification of the support member for supporting the motor.
As shown in fig. 11, the support member 6F having the folded-back plate portions 65F according to the second modification (see fig. 7) may have downstream flow rectification plate portions 67F folded in the downstream direction from the support plate portions 62F, similarly to the support member 6D according to the fourth modification (see fig. 9).
If formed in this way, the support member 6F can rectify the downstream air flow and reduce the air resistance by having the downstream flow rectification plate portion 67F, as in the fourth modification.
[ seventh modification ]
Fig. 12 is an enlarged vertical cross-sectional view showing a seventh modification of the support member that supports the motor.
As shown in fig. 12, the support member 6G having the upstream side facing plate portion 66G in the third modification (see fig. 8) may have a downstream side flow rectification plate portion 67G bent in the downstream direction from the support plate portion 62G, similarly to the support member 6D in the fourth modification (see fig. 9).
If formed in this way, the support member 6G can also rectify the downstream air flow and reduce the air resistance by having the downstream flow rectification plate portion 67G, as in the fourth modification.
[ other modifications ]
As an example of the embodiment of the present invention, a top-blowing (high-rise) outdoor unit 1 in which a blower 40 and a blowing port are disposed above a casing 7 is illustrated as shown in fig. 1, but the present invention is not limited to this. The outdoor unit 1 may be of a front-blowing type (for general household use) in which the blower 40 and the discharge port are arranged in the lateral direction. That is, the installation direction of the outdoor unit 1 can be changed as appropriate.
For example, in the outdoor unit 1 shown in fig. 3, the support member 6 may be disposed so as to extend in the vertical direction, the front plate 72 may be disposed on the lower side, the rear plate 75 may be disposed on the upper side, and the side plates 73 and 74 may be engaged with each other in the lateral direction, thereby making the entire unit horizontal.
As an example of the support member 6, as shown in fig. 4, a horizontal member linearly extending in the front-rear direction is exemplified, but the support member 6 may be a member bent in a substantially J-shape or a substantially く -shape (substantially < shape) in a side view, for example.
As an example of the supporting member 6, a member formed in a band shape having a uniform height of the substrate portion 60 is illustrated as shown in fig. 4 and 5, but the present invention is not limited thereto. The support member 6 may be a member in which the height of the central portion on which the motor bracket 53 is mounted is increased by increasing the height of both end portions of the base plate 60 in the front and rear direction, for example.
In the above-described embodiment, the コ -shaped (U-shaped) support member 6 (see fig. 5) is illustrated in vertical cross section, but the support member 6 may be a member formed by extrusion molding in a substantially H-shaped vertical cross section.
In this case, the support member 6 integrally forms a support plate portion 62 arranged in the horizontal direction, a counter plate portion 63 formed shorter than the support plate portion 62 and arranged horizontally, and a substrate portion 60 bridged between the support plate portion 62 and the counter plate portion 63.
Even if the support member 6 is formed into a substantially H-shape in a vertical cross section as described above, since the area of the opposing plate sections 63 is smaller than the area of the support plate sections 62, air resistance can be reduced.
The substrate portion 60 of the support member 6 may be reinforced by forming a groove portion or a projection portion having a concave shape in a vertical cross section extending in the front-rear direction.
The vertical length of the folded plate portions 65B and 65F shown in fig. 7 and 11 is the same as the vertical length of the upstream rectification plate portions 64B and 64F, but may be changed as appropriate. For example, the vertical length of the folded plate portions 65B and 65F may be longer or shorter than the vertical length of the upstream rectification plate portions 64B and 64F.
In addition, although the substrate portions 60, 60A to 60G, the upstream-side rectification plate portions 64A to 64G, the folded plate portions 65B and 65F, and the downstream-side rectification plate portions 67D to 67G of the support members 6, 6A to 6G shown in fig. 5 to 12 are formed in the direction of the air flow (vertical direction), they may be arranged obliquely to the air flow direction.
The opposing plate sections 63 and 63D shown in fig. 5 and 9 and the upstream opposing plate sections 66C and 66G shown in fig. 8 and 12 may be arranged to be inclined with respect to the air flow. The facing plate sections 63, 63D and the upstream facing plate sections 66C, 66G may be formed by bending the tip end sections obliquely with respect to the downstream direction.
Description of the symbols
1-outdoor unit, 2-heat exchanger, 3-compressor, 4-fan, 5-motor, 6A, 6B, 6C, 6D, 6E, 6F, 6G-support member, 7-casing, 60A, 60B, 60C, 60D, 60E, 60F, 60G-base plate section, 62A, 62B, 62C, 62D, 62E, 62F, 62G-support plate section, 63A, 63B, 63C, 63D, 63E, 63F, 63G-opposed plate section, 64A, 64B, 64C, 64E, 64F, 64G-upstream-side rectification plate section, 65B, 65F-plate section folded back, 66C, 66G-upstream-side opposed plate section, 67D, 67E, 67F, 67G-downstream-side rectification plate section, L1, L3-opposed length (plate section projecting amount of opposed plate section), L2-support plate section length (supporting amount), r1 — part R.
Claims (6)
1. An outdoor unit of an air conditioner, comprising:
a heat exchanger that performs heat exchange with outside air; a fan for generating an air flow for promoting heat exchange of the heat exchanger;
a motor for driving the fan; a case in which the fan and the motor are disposed; and a supporting component erected in the box body,
the support member includes: a substrate portion formed in a direction of the air flow;
a support plate portion extending from a downstream side of the substrate portion in a direction opposite to the direction of the air flow; and
a counter plate portion protruding from an upstream side of the base plate portion in a direction opposite to the direction of the air flow and having a protruding amount smaller than that of the support plate portion,
the support member has an upstream-side rectification plate portion formed by bending and extending an upstream-side end portion of the opposing plate portion in an upstream direction.
2. An outdoor unit of an air conditioner according to claim 1,
the support member includes: an R portion formed by bending an upstream end portion of the upstream rectification plate portion in a downstream direction; and
a folded plate part folded from the R part to the downstream direction.
3. An outdoor unit of an air conditioner according to claim 1,
the support member has an upstream-side opposite plate portion formed by bending and extending an upstream-side end portion of the upstream-side rectification plate portion so as to extend along the opposite plate portion,
the amount of extension of the upstream-side opposing plate portion is smaller than the amount of extension of the support plate portion and the amount of extension of the opposing plate portion.
4. An outdoor unit of an air conditioner according to any one of claims 1 to 3,
the support member has a downstream flow rectification plate portion bent in a downstream direction from the support plate portion.
5. An outdoor unit of an air conditioner according to claim 1,
the support member is formed by bending a single metal plate so that the support plate portion and the opposing plate portion protrude from the substrate portion.
6. An outdoor unit of an air conditioner according to claim 1,
the support member is composed of a plurality of members that support the motor from below by being placed on the support plate portion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-021452 | 2016-02-08 | ||
| JP2016021452A JP6692171B2 (en) | 2016-02-08 | 2016-02-08 | Air conditioner outdoor unit |
| PCT/JP2017/000756 WO2017138289A1 (en) | 2016-02-08 | 2017-01-12 | Outdoor unit for air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108603672A CN108603672A (en) | 2018-09-28 |
| CN108603672B true CN108603672B (en) | 2020-09-08 |
Family
ID=59563669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780009929.2A Active CN108603672B (en) | 2016-02-08 | 2017-01-12 | Outdoor unit of air conditioner |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6692171B2 (en) |
| CN (1) | CN108603672B (en) |
| WO (1) | WO2017138289A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6773060B2 (en) * | 2018-02-15 | 2020-10-21 | ダイキン工業株式会社 | Outdoor unit of air conditioner |
| CN115698595A (en) * | 2020-08-07 | 2023-02-03 | 东芝开利株式会社 | Outdoor unit of air conditioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009058149A (en) * | 2007-08-30 | 2009-03-19 | Fujitsu General Ltd | Outdoor machine of air conditioner |
| CN102829515A (en) * | 2011-06-13 | 2012-12-19 | 三洋电机株式会社 | Outdoor unit for air conditioning device |
| CN203298407U (en) * | 2013-04-24 | 2013-11-20 | 大金工业株式会社 | Motor support of air conditioner outdoor unit and air conditioner outdoor unit |
| CN103868165A (en) * | 2012-12-13 | 2014-06-18 | 三菱电机株式会社 | Outdoor unit of air-conditioning apparatus |
| CN204006415U (en) * | 2013-07-24 | 2014-12-10 | 三菱电机株式会社 | The off-premises station of air conditioner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60187881U (en) * | 1984-05-24 | 1985-12-12 | シャープ株式会社 | Air conditioner outdoor unit |
-
2016
- 2016-02-08 JP JP2016021452A patent/JP6692171B2/en active Active
-
2017
- 2017-01-12 CN CN201780009929.2A patent/CN108603672B/en active Active
- 2017-01-12 WO PCT/JP2017/000756 patent/WO2017138289A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009058149A (en) * | 2007-08-30 | 2009-03-19 | Fujitsu General Ltd | Outdoor machine of air conditioner |
| CN102829515A (en) * | 2011-06-13 | 2012-12-19 | 三洋电机株式会社 | Outdoor unit for air conditioning device |
| CN103868165A (en) * | 2012-12-13 | 2014-06-18 | 三菱电机株式会社 | Outdoor unit of air-conditioning apparatus |
| CN203298407U (en) * | 2013-04-24 | 2013-11-20 | 大金工业株式会社 | Motor support of air conditioner outdoor unit and air conditioner outdoor unit |
| CN204006415U (en) * | 2013-07-24 | 2014-12-10 | 三菱电机株式会社 | The off-premises station of air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6692171B2 (en) | 2020-05-13 |
| WO2017138289A1 (en) | 2017-08-17 |
| CN108603672A (en) | 2018-09-28 |
| JP2017141972A (en) | 2017-08-17 |
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