JP2012017885A - Outdoor unit of refrigerating cycle device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an outdoor unit of refrigerating cycle device, which allows planer view sizes of a casing and a top plate to be easily changed according to difference of capability and further is not disfeatured, and which is operated quietly by preventing generation of noise even if vibration due to driving of a blower is caused.SOLUTION: The outdoor unit of refrigerating cycle device includes a base top plate 3A which covers a front-and-rear direction of an upper face aperture part of the casing and covers a right-and-left direction leaving blank parts at both sides, and top plate parts 3B for side provided at the blank parts. A joint part for the top plate parts for side of the base top plate is tabular side face part 8 and a base top plate joint part of the top plate parts for side is a double side face part 14 in which the base top plate side face part is interposed. First protrusion part 15 and second protrusion part 16 are provided in a protruded and zigzag manner each other on the inner face of the double side face part 14, they are abutted on the top surface/rear surfaces of a base top plate side face part alternately keeping the prescribed spacing.

Description

  The present invention relates to an outdoor unit of a refrigeration cycle apparatus.

  As an outdoor unit that constitutes an air conditioner that is a refrigeration cycle apparatus, a compressor, a heat exchanger, and a blower are housed inside the housing, a suction port is provided on the side of the housing, and a blowout port is provided on the top plate. Some types are provided. This type of outdoor unit is disposed, for example, on a rooftop of a building or the like, and is connected to a plurality of indoor units via a refrigerant pipe.

  Different types of outdoor units are provided so that the capacity of the refrigeration cycle apparatus can cope with various conditions. For example, the heat exchange amount of the heat exchanger, the number of compressors, and the increase in the blower amount of the blower are changed according to the capacity. Accordingly, it is necessary to change the plan view size of the casing constituting the outdoor unit and the top plate covering the upper surface opening of the casing.

  In [Patent Document 1], the first top plate including the air outlet is commonly used as the top plate covering the upper surface opening of the casing regardless of the change in the air conditioning capability. And the 2nd top plate and the 3rd top plate which are arrange | positioned on the right-and-left both sides of this 1st top plate are replaced with the thing of a different size (length), respectively, so that the planar view size of the whole top plate can be varied. It has become.

  Furthermore, the 1st engaging part is formed in the both sides of the said 1st top plate, and the 2nd engaging part is formed in the said 2nd, 3rd top plate. Since the second engaging portions of the second and third top plates are engaged with the first engaging portions of the first top plate in a state where each top plate is attached to the housing, the position of each top plate is shifted. It is described that it is difficult to cause such troubles.

JP 2004-156799 A

  However, depending on the air conditioning conditions, it may be optimal to use a single casing that matches the size of the first top plate. On the other hand, in the above [Patent Document 1], the first top plate is not used alone, and at least one of the second top plate and the third top plate is used as the first top plate. Need to be combined, and the selection range is narrow.

  Moreover, the 1st engaging part and the 2nd engaging part are only formed in the protrusion and concave shape which were curved by planar view, and are not the structure which fixes these engaging parts firmly. For this reason, when the blower housed in the housing is driven, the mating portion of the first engagement portion and the second engagement portion vibrates, and noise (chatting noise) may occur.

  In order to prevent such noise from occurring, it is possible to provide the first engaging portion and the second engaging portion with claw portions, protrusions, or attachments for firmly fixing the top plates to each other. is there. However, if the first top plate is used alone after providing these, the claw portion, the protrusion, and the fixture are exposed as they are, and the appearance is impaired.

  The present embodiment has been made based on the above circumstances, and facilitates the change of the plan view size of the housing and the top plate according to the difference in ability, without impairing the appearance, and accompanying the driving of the blower Provided is an outdoor unit of a refrigeration cycle apparatus capable of quiet operation by preventing generation of noise even when there is vibration.

The outdoor unit of the refrigeration cycle apparatus according to the present embodiment includes a housing having a suction port on a side surface and an upper surface opening, and a top plate that has an air outlet and is attached to the housing so as to cover the upper surface opening of the housing. Prepare.
The top plate covers the top and bottom direction of the upper surface opening but covers the left and right sides leaving a blank portion on both sides, and the side top plate that is provided on both side blank portions and covers the upper surface opening of the housing together with the base top plate. A top plate.
The joint portion of the base top plate with the side top plate portion is a flat side surface portion that is bent in a vertical direction orthogonal to the top surface. The joint of the side top plate portion with the base top plate is a double side surface portion that is formed with a narrow gap, and the side surface portion of the base top plate is inserted in the gap.
The first protrusions and the second protrusions project in a staggered manner on the inner surfaces of the double side surfaces, and alternately have a predetermined interval with respect to the front and back surfaces of the base top plate side surfaces. And abut.

The perspective view of the outdoor unit of the refrigerating-cycle apparatus based on 1st Embodiment. The perspective view of the top plate based on the embodiment. The perspective view of the outdoor unit of the refrigerating-cycle apparatus based on 2nd Embodiment. The perspective view explaining the combination of the top plate based on the embodiment. The perspective view of the top plate part for sides based on the embodiment. The perspective view which expanded the top plate part for sides based on the embodiment. The figure explaining the combined state of the side part of a base top plate and the side part of a side top plate part based on the embodiment.

Hereinafter, the present embodiment will be described with reference to the drawings.
FIG. 1 is an external perspective view of an outdoor unit Sa constituting an air conditioner as a refrigeration cycle apparatus according to the first embodiment.

  The outdoor unit Sa includes a housing 2A having a suction port 1 on the peripheral surface and an opening on the upper surface, and a top plate 3A covering the upper surface opening of the housing 2A. The machine is configured.

  In particular, in 1st Embodiment, it applies as outdoor unit Sa provided with the basic air-conditioning capability. Therefore, in this case, a “base casing” in which the size in plan view is set to the basic size in the front-rear direction (Ya-Yb) and the left-right direction (Xa-Xb) is used for the casing 2A in this case. A “base top plate” is used as the top plate 3A covering the upper end opening of the base casing 2A.

  The length in the left-right direction (Xa-Xb) in the plan view size of the base casing 2A and the base top plate 3A is formed slightly larger than the length in the front-rear direction (Ya-Yb), and therefore has a slightly horizontally long rectangular shape. There is no. A front panel 4a is attached to the front surface of the base housing 2, and a side panel 4b is attached to the right side surface. Panels are also attached to the rear and left sides (not shown).

  The suction port 1 composed of a large number of holes is provided from the upper end in the height direction of each panel 4a, 4b to a substantially intermediate portion. Only a predetermined panel is provided with a front door of the electrical component box below the suction port 1 and is opened when the electrical component is inspected. Furthermore, a pipe connection part is provided, and a refrigerant pipe communicating with an indoor unit (not shown) is connected.

FIG. 2 is a perspective view showing only the base top plate 3A, and a part thereof is omitted.
The base top plate 3A includes a flat plate portion 5 constituting the top surface, a bell mouth 6 formed upright from the flat plate portion 5, and an outlet port integrally provided at the upper end portion of the bell mouth 6. Part 7.

  The outer peripheral end of the flat plate portion 5 is a side surface portion 8 that is bent vertically from the top surface, and the side surface portion 8 is formed in a flat plate shape without any irregularities. The four corners of the flat plate portion 5 are provided with fixing holes 5a for fixing the base top plate 3A to the housing 2A with fixing screws (not shown).

  The distance between the side surface parts 8 facing the front and rear direction (Ya-Yb) of the base top plate 3A and the distance between the side surface parts 8 facing the left and right direction (Xa-Xb) are the front and rear direction (Ya- Yb) The length is the same as the length in the left-right direction (Xa-Xb). Therefore, the base top plate 3A is fitted into the upper end of the base casing 2A.

  As shown only in FIG. 1, the upper end of the base top plate 3A is provided with a fan guard 9 that bends the wires concentrically and connects them radially. The fan guard 9 is provided to face a blower fan that constitutes a blower (not shown) disposed inside the base housing 2A.

  If it demonstrates, the said air blower will be accommodated in the approximate center part of 2 A of base housing | casings, and this axial direction is orient | assigned to the orthogonal | vertical direction. The blower includes a fan motor that is supported with the rotation shaft facing upward, and a blower fan that is fitted to the rotation shaft of the fan motor.

The outer peripheral end of the blower fan is surrounded by the outlet 7. When the blower is driven and the blower fan rotates, outdoor air is sucked into the base housing 2A from the suction port 1 provided in each of the panels 4a and 4b and is guided upward from the lower side of the blower fan, and the blowout port 7 Is blown out to the outside.
At this time, the base top plate 3A is fitted into the upper end portion of the base casing 2A and is firmly fixed by the fixing screw, so that no noise such as chatter noise is generated due to the rotational drive of the blower.

  In addition, a compressor, an outdoor heat exchanger, and valves (not shown) are accommodated inside the base housing 2A, and each is connected via a pipe. The compressor has a basic compression capacity, and the outdoor heat exchanger has a basic heat exchange amount. Therefore, the said air blower is equipped with the basic ventilation performance corresponding to the outdoor heat exchanger provided with the basic heat exchange capacity | capacitance.

FIG. 3 is a perspective view of an outdoor unit Sb constituting an air conditioner as a refrigeration cycle apparatus according to the second embodiment.
In the second embodiment, the outdoor unit Sb having a larger air conditioning capability than the outdoor unit Sa having the basic air conditioning capability described in the first embodiment is applied. .

  As the case 2B, a “wide case” having a configuration partially different from the base case 2A described above is used. As the top plate 30 attached to the upper end of the wide casing 2B, “top plate assembly”, which is a combination of the base top plate 3A described above and the side top plate portion 3B described later, is used. .

  The front-rear direction (Ya-Yb) length of the wide casing 2B is set to be the same as the front-rear direction (Ya-Yb) length of the base casing 2A, but the left-right direction (Xa-Xb) length is It is set larger (longer) than the length in the left-right direction (Xa-Xb) of the housing 2A. Accordingly, the planar shape of the wide housing 2B is a horizontally elongated rectangular shape as compared with the base housing 2A planar shape.

  Also in the wide housing 2B, panels 10a and 10b are attached to the respective peripheral surfaces. The suction port 11 is provided in any panel 10a, 10b. The front door of the electrical component box is attached only to a predetermined panel, and is opened when inspecting the electrical component. Furthermore, a pipe connection part is provided, and a refrigerant pipe communicating with an indoor unit (not shown) is also connected.

  Here, since the length in the front-rear direction (Ya-Yb) of the wide casing 2B is set to be the same as the length in the front-rear direction (Ya-Yb) of the base casing 2A, the side panel 10b of the wide casing 2b It can be shared with the side panel 4b of the base casing 2A.

  A compressor, an outdoor heat exchanger, valves and a blower (not shown) are accommodated in the wide housing 2B. These compressors and other refrigeration cycle components are provided with large capacity and performance from the compressor and other refrigeration cycle components accommodated in the base casing 2A.

  Since the base top plate 3A described above is used as it is for the base top plate 3A constituting the top plate assembly 30, the same reference numerals are given to the same components related to the base top plate 3A, and a new description is omitted. .

  The blowout port 7 provided on the base top plate 3A does not change that it surrounds the outer peripheral end of the blower fan constituting the blower. Therefore, the outside diameter of the blower fan is the same as the outside diameter of the blower fan provided in the base casing 2A, but a blower that secures the amount of blown air adapted to the outdoor heat exchanger provided in the wide casing 2B is used. Needless to say.

As described above, the length in the front-rear direction (Ya-Yb) and the length in the left-right direction (Xa-Xb) of the base top plate 3A are the same as the plan view size of the base casing 2A. When the upper surface opening of the wide housing 2B is covered with the base top plate 3A, the front-rear direction (Ya-Yb) of the upper surface opening of the wide housing 2B is covered, but the left and right directions (Xa-Xb) are blank portions on both sides. Will leave.
Therefore, the side top plate portion 3B is attached so as to cover the blank portions on both sides of the base top plate 3A. The base top plate 3A and the pair of left and right side top plates 3B constitute the top plate assembly 30.

The length in the front-rear direction (Ya-Yb) of each side top plate portion 3B is formed to be the same as the length in the front-rear direction (Ya-Yb) of the base top plate 3A. The left-right direction (Xa-Xb) length of each side top plate portion 3B is the difference between the left-right direction (Xa-Xb) length of the wide housing 2B and the left-right direction (Xa-Xb) length of the base top plate 3A. Half (1/2).
Accordingly, the side top plates 3B and 3B attached to the left and right sides of the base top plate 3A have the same size and shape.

The side top plate portion 3B will be described.
FIG. 5 is a perspective view of the side top plate portion 3B, and FIG. 6 is an enlarged perspective view showing a part of the side top plate portion 3B.

In the side top plate portion 3 </ b> B, the right side portion and the front and rear surfaces, excluding the left side portion in the figure, form a flat side surface portion 13 that is bent perpendicularly to the flat surface portion 12. Also, fixing holes 12a for fixing the side top plate 3B to the wide housing 2B with fixing screws are provided at the two corners on the right side of the side top plate 3B.
The left side portion of the side top plate portion 3B is integrally formed with an inner surface portion 14a formed so as to match the planar view shape of the side surface portion 8 of the base top plate 3A, and a lower end of the inner surface portion 14a via a bottom surface portion 14b. The double side surface portion 14 is composed of an outer surface portion 14c that is connected and formed in parallel with the inner surface portion 14a at a predetermined interval.

  Therefore, the cross-sectional shape in the left-right direction (Xa-Xb) of the double side surface portion 14 including the inner surface portion 14a, the bottom surface portion 14b, and the outer surface portion 14c is substantially U-shaped. The distance between the inner surface portion 14a and the outer surface portion 14c, which is the width direction of the bottom surface portion 14b, is slightly larger than the thickness of the side surface portion 8 constituting the base top plate 3A.

  Strictly, the length of the side top plate portion 3B in the left-right direction (Xa-Xb) is set with a distance from the inner surface portion 14a of the double side surface portion 14 to the side surface portion 13 on the right side portion. As described above, the length in the left-right direction (Xa-Xb) is half of the difference between the length in the left-right direction (Xa-Xb) of the wide housing 2B and the length in the left-right direction (Xa-Xb) of the base top plate 3A. is there.

  A plurality of first projecting portions 15 are integrally provided on the inner surface portion 14a of the double side surface portion 14 at a predetermined interval. On the outer surface portion 14c, the second protrusions 16 are integrally provided with a predetermined interval therebetween. The first protrusion 15 and the second protrusion 16 are provided at positions that do not face each other, and are therefore arranged in a staggered manner.

  The first projecting portion 15 projecting from the inner surface portion 14a has a predetermined length in the front-rear direction (Ya-Yb) and has a substantially triangular shape in cross section in the height direction. The second projecting portion 16 projecting from the outer surface portion 14c has a protruding piece shape with a predetermined plate thickness in the front-rear direction (Xa-Xb), and projects toward the inner surface portion 14a.

The side top plate portion 3B configured as described above and the top plate assembly 30 together with the base top plate 3A will be described below.
First, as shown in FIG. 4, one base top plate 3A and two side top plates 3B are prepared, the base top plate 3A is placed in the center, and the side top and bottom sides of the base top plate 3A are placed on the left and right sides. Place the top plate part 3B. At this time, the side top plate portion 3B determines the posture so that the double side surface portion 14 faces the side surface portion 8 in the left-right direction (Xa-Xb) of the base top plate 3A.

  Then, the base top plate 3A is lifted so that either one of the left and right side surface portions 8 faces the upper portion of the double side surface portion 14 of the side top plate portion 3B. With this posture, the base top plate 3A is moved downward and the side surface portion 8 is fitted from above the double side surface portion 14 of the side top plate portion 3B.

  Then, the left and right remaining side surface portions 8 of the base top plate 3A are fitted in the double side surface portions 14 of the side top plate portion 3B in the same state. Accordingly, the side top plate portions 3B are connected to the left and right sides of the base top plate 3A, and the top plate assembly 30 is configured. When the top plate assembly 30 is fitted into the upper end opening of the wide housing 2B, the state shown in FIG. 3 is obtained.

FIG. 7 is an enlarged view showing a state in which the side surface portion 8 of the base top plate 3A is fitted into the double side surface portion 14 of the side top plate portion 3B.
By fitting the side surface portion 8 of the base top plate 3A into the double side surface portion 14 of the side top plate portion 3B, the plurality of first protrusions 15 protruding from the inner surface portion 14a are 8 is brought into contact with the surface of the substrate 8 at a predetermined interval. The plurality of second protrusions 16 projecting from the outer surface portion 14c abuts the back surface of the base top plate side surface portion 8 with a predetermined interval.

  The base top plate side surface 8 is deformed into a loose corrugated shape by receiving a pressing force from both sides by the first protrusion 15 and the second protrusion 16. If the base top plate side surface portion 8 is inserted into the double side surface portion 14 of the side top plate portion 3B while being in a straight shape, the side top plate portion 3B receives the base without receiving any resistance. It will come off the top plate 3A.

  However, here, the base top plate side surface portion 8 receives a pressing force from both sides and is deformed into a loose corrugated shape by the first projection portion 15 and the second projection portion 16, and therefore the side top plate portion 3 </ b> B. The positional displacement regulating force with respect to the double side surface portion 14 is generated.

  In other words, the base top plate 3A and the side top plate portion 3B can be firmly connected and fixed to each other without using any fixture. For fixing the top plate assembly 30 to the wide housing 2B, the fixing holes 12a of the side top plate portion 3B are used, and the fixing holes 5a of the base top plate 3A are not used.

  When an air conditioning operation start signal is input to the air conditioner having such an outdoor unit Sb, the compressor is driven and the refrigeration cycle operation is performed. At the same time, a drive signal for the blower is issued, and the blower fan is driven to rotate.

  As described above, in the outdoor unit Sb, the side surface portion 8 of the base top plate 3A is fitted into the double side surface portion 14 of the side top plate portion 3B, and is integrally connected to form the top plate assembly 30. It is attached to the upper end of the housing 2B.

  In addition, the base top plate 3A and the side top plate portion 3B are firmly fixed to each other by the first projection portion 15 and the second projection portion 16 provided on the double side surface portion 14 of the side top plate portion 3B. Yes. Therefore, even if the vibration accompanying the rotational drive of the blower fan is transmitted from the wide housing 2B to the top plate assembly 30, no noise such as chatter noise is generated.

  Note that the above-described wide housing 2B is not limited to the one in the left-right direction (Xa-Xb) length, and a plurality of types in the left-right direction (Xa-Xb) length depending on the air conditioning (refrigeration) capacity. Will be prepared. Correspondingly, the side top plate portion 3B is not limited to being connected one by one to the left and right side portions of the base top plate 3A, and may be connected to a plurality of pieces.

  That is, only one type of side top plate portion 3B is prepared, and the side top plate portion 3B is connected in a state in which the number is sequentially increased in accordance with conditions, thereby obtaining an increase in length in the left-right direction (Xa-Xb). Therefore, it can correspond to the wide housing 2B of any plan view size.

  The side top plate portions 3B are connected to each other only by replacing the side surface portion 8 of the base top plate 3A described above with the side surface portion 13 of the side top plate portion 3B. The side top plate portions 3B are firmly connected to each other by the first and second protrusions 15 and 16 provided on the double side surface portion 14.

  As mentioned above, although this embodiment was described, the above-mentioned embodiment is shown as an example and does not intend limiting the range of embodiment. The novel embodiment can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 1,11 ... Suction port, 2A ... Base housing | casing, 9 ... Air blower outlet, 3A ... Base top plate, 2B ... Wide housing | casing, 3B ... Side top plate part, 8 ... Side surface part (base top plate), 14... Double side surface (of side top plate) 15. First protrusion 16. Second protrusion

Claims (2)

A housing having a suction port on a side surface and having an upper surface opened;
An outdoor unit of a refrigeration cycle apparatus comprising an air outlet and a top plate attached to the housing so as to cover the upper surface opening of the housing,
The top plate
A base top plate that covers the front and back direction of the upper surface opening, but covers the left and right direction leaving a blank part on both sides;
Provided on both side blank portions of the base top plate, and a side top plate portion that covers the top opening together with the base top plate,
The joint portion of the base top plate with the side top plate portion is a flat side surface portion that is bent in a vertical direction perpendicular to the top surface.
The joint portion of the side top plate portion with the base top plate is formed with a narrow gap, and is a double side surface portion in which the side portion of the base top plate is inserted in these gaps.
A first projection and a second projection are provided in a staggered manner on the inner surface of each of the double side portions, and the first and second projections are formed on the base top plate side portion. An outdoor unit of a refrigeration cycle apparatus, wherein the outdoor unit is in contact with a front surface and a back surface alternately at a predetermined interval.   The case has a plurality of types of left and right lengths depending on the refrigerating capacity. In the case of a case having the same left and right length as the left and right length of the base top plate portion, the base top plate The outdoor unit of the refrigeration cycle apparatus according to claim 1, wherein the upper surface opening is covered only by

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