WO2014087709A1

WO2014087709A1 - Outdoor unit for air conditioner

Info

Publication number: WO2014087709A1
Application number: PCT/JP2013/073873
Authority: WO
Inventors: 智也簗瀬; 久保野　俊行; 岩崎　弘; 大石　一広; 和穂伊藤; 秀高山内
Original assignee: 三菱電機株式会社
Priority date: 2012-12-06
Filing date: 2013-09-05
Publication date: 2014-06-12
Also published as: CN103851710B; EP2930440A4; JP2014114964A; CN203586430U; EP2930440A1; CN103851710A

Abstract

The fan motor support plate mounting section (17) of a bottom plate (12) comprises: an affixation section (15) which is formed by cutting the bottom plate (12) and raising the cut part upward from the front face side to the rear face side; and a threaded hole (16) which penetrates through the affixation section (15). Also, an engagement section (26) is provided at the lower end of a fan motor support plate (4) for supporting a fan motor (2a), and the engagement section (26) has a mounting surface (23) in contact with the front face-side surface of the affixation section (15), and also has a mounting hole (24) penetrating through the mounting surface (23) at a position facing the threaded hole (16). The fan motor support plate (4) is affixed to the fan motor support plate mounting section (17) of the bottom plate (12) by a screw (13) which is inserted through the mounting hole (24) from the front face side within a housing (14) and which is engaged with the threaded hole (16) formed in the affixation section (15).

Description

Air conditioner outdoor unit

The present invention relates to an outdoor unit of an air conditioner, and more particularly to a structure for mounting a fan motor support plate that supports a fan motor as a drive source of a blower to a housing bottom plate.

The outdoor unit of the air conditioner has a blower chamber in which the blower fan and the heat exchanger are located in the left and right direction inside the housing, a compressor and a refrigerant, by a partition plate standing upright on the bottom plate constituting the bottom surface portion of the housing It is divided into the machine room where the piping is located. An electrical component box for storing electrical and electronic parts for controlling the operation of the air conditioner is disposed mainly in the upper part of the machine room.

In the blower chamber, a heat exchanger having a substantially L-shaped horizontal cross section is arranged from the back side in the housing to the side surface opposite to the machine room, and the heat exchanger of the heat exchanger located on the back side A blower fan is disposed in front, that is, near the front of the housing. And the fan motor which is a drive source of a ventilation fan is attached and fixed to the fan motor support plate in the position behind the ventilation fan and the front of the heat exchanger.

Like the fan motor, the fan motor support plate is provided between the blower fan and the heat exchanger in a substantially vertical state from the top of the housing to the top surface in the substantially vertical direction. The fan motor is supported at a substantially central position. The motor rotating shaft protruding forward from the fan motor is connected to the blower fan to transmit the rotational driving force of the fan motor to the blower fan, and the fan motor support plate is connected not only to the fan motor but also the fan motor Also supports a blower fan.

The fan motor support plate that supports the fan motor and the blower fan is screwed at its lower end to the bottom plate of the housing, and at the upper end, a latching piece formed toward the rear is the upper part of the heat exchanger. It is fixed by being engaged with.

When fixing the lower end of the fan motor support plate to the bottom plate of the housing with a screw, a fixed piece is formed on the metal bottom plate by cutting and raising, and a screw hole is provided in the fixed piece to lower the lower end of the fan motor support plate. The outdoor unit of the air conditioner that is fixing the screw to the bottom plate of the fan motor support plate by inserting the screw into the mounting hole formed in the section and coupling the screw to the screw hole of the fixing piece of the bottom plate is there. (For example, refer to Patent Document 1.)

JP-A-10-96541 (column 0003, FIG. 2, FIG. 6 etc.)

When forming the fixed piece by cutting and raising a part of the bottom plate, the fixed piece as disclosed in Patent Document 1, that is, before the contact surface in contact with the lower end portion of the fan motor support plate is cut and raised. In the fixed piece such as the upper surface of the bottom plate, the tip of the screw protruding from the screw hole on the anti-contact surface side of the fixed piece raises the same size as the fixed piece formed by cutting the fixed piece. Through the hole, the bottom surface of the bottom plate is exposed to the outside of the housing.

For this reason, when such an outdoor unit is installed (installed) at a predetermined outdoor location, the installation operator is exposed, for example, when the outdoor unit is lifted or carried. There was a risk of fingers touching the tip of the screw.

In addition, when installing an outdoor unit on the veranda of a mid-to-high-rise apartment building, the outdoor unit may not be placed on the floor of the veranda, but may be hung from the ceiling of the veranda with metal fittings. When an outdoor unit as shown in Patent Document 1 is installed in such a ceiling-suspended type, the tip of the screw exposed from the lower surface side of the bottom plate comes into contact with the eyes of the user who has come out on the veranda. There was a risk of discomfort to the user, such as poor design or a dangerous feeling at the tip of the screw.

The present invention has been made to solve the above problems, and even if the lower end of the fan motor support plate is screwed to the bottom plate of the housing, the tip of the screw is exposed to the outside of the housing. An object is to provide an outdoor unit of an air conditioner without air.

The outdoor unit of the air conditioner according to the present invention includes a heat exchanger disposed on the back side in the housing, and a blower fan disposed on the front surface of the heat exchanger and blowing air from the back side to the front side of the housing. A lower end portion is fixed to a fan motor disposed between the heat exchanger and the blower fan to drive the blower fan, and a fan motor support plate mounting portion of a bottom plate constituting the bottom portion of the housing. A fan motor support plate that is provided in a vertical direction toward the top surface of the housing and supports the fan motor in the middle of the vertical direction, and the fan motor support plate mounting portion of the bottom plate includes: A fixing piece formed by cutting and raising the bottom plate and a screw hole penetrating the fixing piece are provided, and a lower surface of the fan motor support plate has an attachment surface attached to the fixing piece. The screw hole An outdoor unit of an air conditioner provided with an engaging portion having an attachment hole penetrating the attachment surface at an opposing position, and wherein the fan motor support plate is screwed to the fan motor support plate attachment portion of the bottom plate The fixing piece is configured by cutting and raising the bottom plate from the front side toward the back side, and a surface on the back side of the mounting surface of the locking portion is formed on the front side of the fixing piece. The screw is inserted through the attachment hole from the front side in the housing and coupled to the screw hole of the fixed piece, so that the tip of the screw is located on the back side of the fixed piece. It is located between the inner surface of the casing and the rear surface of the fixed piece.

According to this invention, the front end of the screw with the fan motor support plate fixed to the bottom plate of the housing is not exposed to the outside of the housing, so that the installation operator can touch the front end of the screw during installation work or Thus, an outdoor unit of an air conditioner whose appearance does not cause discomfort to the user can be obtained.

It is an external appearance perspective view which shows the outdoor unit of the air conditioner in Embodiment 1 of this invention. 2 is a perspective view showing an internal configuration of an outdoor unit of the air conditioner according to Embodiment 1. FIG. It is a perspective view which shows the baseplate which concerns on Embodiment 1 from an upper direction. FIG. 3 is an enlarged perspective view showing a fan motor support plate mounting portion of the bottom plate according to the first embodiment. 4 is a perspective view showing a fan motor support plate according to Embodiment 1. FIG. FIG. 4 is an enlarged perspective view showing a state in which the lower end portion of the fan motor support plate is fixed to the bottom plate according to the first embodiment. FIG. 7 is a cross-sectional view taken along the line ZZ in FIG. 6 according to the first embodiment, and is a view of a screw-fixed portion viewed from the left side. It is explanatory drawing which concerns on Embodiment 1 and demonstrates cutting-raising angle (alpha) of the fixed piece formed by cutting and raising a baseplate.

Embodiment 1 FIG.
Hereinafter, Embodiment 1 of the present invention will be described in detail with reference to FIGS.

FIG. 1 is an external perspective view showing an outdoor unit 100 of an air conditioner according to Embodiment 1 of the present invention (hereinafter, sometimes referred to as only the outdoor unit 100), and FIG. It is a perspective view which removes a part of housing | casing 14 and shows an internal structure. The outdoor unit 100 is installed outdoors, and is connected to an indoor unit (not shown) installed indoors via a refrigerant pipe to form a refrigerant circuit, thereby cooling or heating an indoor space in which the indoor unit is attached. The air conditioner which performs is constituted.

As shown in FIG. 1, a plurality of, for example, five panels, a front panel 14a,

side panels

14b and 14d, a back panel 14c, a top panel 14e, and a bottom plate 12 (refer to FIG. 2 for details) A rectangular parallelepiped housing 14 is formed, and the panels 14a to 14e and the bottom plate 12 are all made of sheet metal. The lower portion of the housing 14 has a leg portion 11 that supports the housing 14. A blower fan 2c of the blower 2 is disposed inside the front panel 14a. FIG. 2 shows a part of the housing 14, that is, the inside of the housing 14 from which the

panels

14a, 14c, 14d, 14e other than the bottom plate 12 and the side panel 14b and the blower fan 2c are removed.

As shown in FIG. 2, a partition plate 10 that divides the inside of the outdoor unit 100 (inside the casing) into the left and right is installed upright on the bottom plate 12 that forms the bottom surface of the casing 14 of the outdoor unit 100. . The partition plate 10 is divided into a blower chamber 5 having the heat exchanger 1 and the blower 2 and a machine chamber 9 in which the compressor 6 and the refrigerant pipe 7 are arranged. When the outdoor unit 100 is viewed from the front, the blower chamber 5 is located on the left side, and the machine room 9 is located on the right side.

The machine room 9 is provided with a compressor 6 and a refrigerant pipe 7. The refrigerant sent from the indoor unit (not shown) is compressed by the compressor 6, passes through the refrigerant pipe 7, and is sent to the heat exchanger 1.
The electrical component box 8 is installed on the partition plate 10 in the upper part of the machine room 9 and a part of the blower room 5. The electrical product stored in the electrical product box 8 supplies power to each component.

The blower chamber 5 is provided with a heat exchanger 1 disposed on the back side and a fan motor support plate 4 that supports a fan motor 2a that rotationally drives a blower fan 2c (see FIG. 1). Is fixed to the bottom plate 12 with screws 13. As for the heat exchanger 1, the horizontal cross section is comprised by the side surface side plane part 1a, the corner | angular part 1b, and the back side plane part 1c in the substantially L shape.

For the blower 2 of the outdoor unit 100, for example, a propeller fan is used as the blower fan 2c. The blower fan 2c is disposed in front of the heat exchanger 1, and the fan motor 2a that drives the blower fan 2c is disposed behind the blower fan 2c, that is, between the heat exchanger 1 and the blower fan 2c. The blower fan 2c is fixed to the motor rotating shaft 2b of the fan motor 2a to constitute the blower 2.

When the blower fan 2c is rotationally driven, outside air flows into the housing 14 from the back side of the blower fan 2c through the side plane portion 1a, the corner portion 1b, and the back plane portion 1c of the heat exchanger 1. The outside air passes through the blower fan 2c, flows in front of the outdoor unit 100, and flows out from the outlet formed in the front panel 14a on the front side. Thus, for example, during the cooling operation, the refrigerant in the heat exchanger 1 is cooled by the outside air, and the outside air that has passed through the heat exchanger 1 is heated by exchanging heat with the refrigerant.

As the order of assembling each part, first, the heat exchanger 1 is fixed to the bottom plate 12, and then the compressor 6 and the refrigerant pipe 7 are fixed. Thereafter, the fan motor support plate 4 is assembled to the bottom plate 12, the fan motor 2a is fixed to the fan motor support plate 4, and the blower fan 2c is fixed to the motor rotating shaft 2b. Next, the partition plate 10 is assembled to the bottom plate 12. Finally, the panels 14a to 14e constituting the electrical component box 8 and the casing 14 are fixed.

Here, as shown in FIGS. 1 and 2, in the description of this embodiment, the direction in which the front panel 14a faces the outside is defined as the front side, and the opposite direction is defined as the back side. And the direction which connects a front side and a back side is called the front-back direction. Further, the direction in which the machine room 9 is located when viewed from the front is the right side, and the direction in which the blower room 5 is located is the left side. The front side may be described as the front, the back side as the rear, the right side as the right direction, and the left side as the left direction.

FIG. 3 is a perspective view showing the bottom plate 12 constituting the bottom surface of the casing 14 of the outdoor unit 100 from an obliquely upward direction, and shows a state before assembling each component attached inside. The bottom plate 12 is pre-pressed so that an attachment portion for assembling each component to be attached is formed. A fan motor support plate mounting portion 17 for fixing the lower end portion of the fan motor support plate 4 is formed at a substantially central portion in the front-rear direction and the left-right direction of the bottom plate 12 serving as the blower chamber 5. FIG. 4 is an enlarged perspective view showing the fan motor support plate mounting portion 17.

Hereinafter, the fan motor support plate mounting portion 17 of the bottom plate 12 will be described in detail.
A plurality of fixed pieces 15 are formed on the fan motor support plate mounting portion 17 by cutting and raising the bottom plate 12. The fixed piece 15 is formed as follows. The fan motor support plate mounting portion 17 of the metal bottom plate 12 has a substantially flat surface, and a part of the bottom plate 12 is cut upward from the front side toward the back side. Next, this cut and raised piece is processed to form a plurality of, in this case, three fixed pieces 15. A screw hole 16 penetrating the fixed piece 15 is provided at the center of each fixed piece 15 by, for example, burring. In the bottom plate 12 on the front side of the fixed piece 15, an opening 19 is formed by cutting and raising to form the fixed piece 15. Here, the fixed piece 15 is formed by cutting and raising a part of the bottom plate 12 from the front side toward the back side, and is a surface on the inside of the casing 14 of the bottom plate 12 before the fixed piece 15 is cut and raised. Thus, the surface on the back side of the fixed piece 15 is formed, and the surface on the front side of the fixed piece 15 is formed on the surface of the bottom plate 12 on the outside of the housing 14.

The fixed piece 15 is composed of three small pieces, but any number is possible. The fan motor support plate 4 is screw-fixed by the fixing piece 15. However, if the fan motor support plate 4 is stably fixed, the number may be one. Further, a plurality of screw holes may be provided in the cut and raised piece. That is, a configuration in which one large fixing piece is provided and the fixing piece is provided with a plurality of fixing portions to be stably fixed may be employed.

Also, positioning pieces 20a and 20b are provided on both sides of the opening 19 in order to position the front and rear direction and the left and right direction when the fan motor support plate 4 is attached to the fan motor support plate attachment portion 17. The positioning pieces 20a and 20b are formed by cutting and raising the bottom plate 12 upward from the back side to the front side.

Openings

18a and 18b resulting from the formation of the positioning pieces 20a and 20b are formed on the back side of the positioning pieces 20a and 20b. The

openings

18a and 18b are smaller than the opening 19.

FIG. 5 is a perspective view showing the fan motor support plate 4 that supports the fan motor 2a.
The fan motor support plate 4 is fixed in the casing 14 and is provided in a substantially upright state in the substantially vertical direction from the bottom plate 12 toward the top panel 14e. A fan motor fixing surface 3 to which the motor 2a is attached is provided. The fan motor 2a shown in FIG. 2 is attached to the fan motor fixing surface 3, and the blower fan 2c is connected to the motor rotating shaft 2b protruding forward from the fan motor 2a, so that the rotational driving force of the fan motor 2a is increased. It is transmitted to the blower fan 2c. Thus, the fan motor support plate 4 supports not only the fan motor 2a but also the blower fan 2c to which the fan motor 2a is connected via the motor rotating shaft 2b.

The lower end of the fan motor support plate 4 is screwed to the fan motor support plate mounting portion 17 of the bottom plate 12 of the housing 14. A locking portion 26 fixed to the bottom plate 12 is formed at the lower end portion of the fan motor support plate 4. Specifically, the locking portion 26 has a flat surface 21 that faces the bottom plate 12, and has notches 22 a and 22 b at both ends in the left-right direction of the flat surface 21. These notches 22a and 22b may be formed by cutting the front side corners into squares at both left and right ends of the flat surface 21, or when the flat surface 21 is pressed. You may press-process including these shapes. Further, the locking portion 26 has a mounting surface 23 that is inclined upward from the flat surface 21 toward the back side on the back side of the flat surface 21. This attachment surface 23 is a front side surface of the fixed piece 15 shown in FIG. 4 (the bottom surface in the thickness direction of the bottom plate 12 that faces the outside of the housing 14 if not cut). Inclined to touch. That is, the attachment surface 23 is in contact with the front side of the fixed piece 15 on the back side. The attachment surface 23 is provided with an attachment hole 24 that penetrates the attachment surface 23 at a position facing the screw hole 16 provided in the fixation piece 15 when being brought into contact with the fixation piece 15.

Further, a heat exchanger contact portion 25 is provided on the back side of the locking portion 26 of the fan motor support plate 4. The front and rear positioning of the fan motor support plate 4 is achieved by the heat exchanger abutting portion 25 abutting from the front side on the back side flat portion 1c of the heat exchanger 1 located on the back side in the housing 14. Made.
Further, the upper end portion of the fan motor support plate 4 has a latching portion 27 that protrudes to the back side from the fan motor fixing surface 3. The upper end portion of the fan motor support plate 4 is fixed by hooking the latching portion 27 on the upper portion of the back surface side plane portion 1c of the heat exchanger 1.

FIG. 6 is an enlarged perspective view showing a state where the locking portion 26 of the fan motor support plate 4 is screwed to the fan motor support plate mounting portion 17 of the bottom plate 12. The heat exchanger abutting portion 25 is brought into contact with the back side flat portion 1c of the heat exchanger 1 from the front side, and the positioning pieces 20a and 20b for assembling the fan motor support plate 4 are respectively connected to the fan motor support plate 4. The cutouts 22a and 22b are inserted into the cutouts 22a and 22b. As a result, the fan motor support plate 4 is positioned in the front-rear direction and the left-right direction. In this state, the mounting surface 23 of the fan motor support plate 4 is in contact with the front side of the fixed piece 15, and positioning is performed so that the mounting hole 24 of the mounting surface 23 and the screw hole 16 of the fixed piece 15 face each other. Therefore, the screw 13 is inserted into the attachment hole 24 from the front side, and the screw 13 is coupled to the screw hole 16 of the fixing piece 15 formed in the bottom plate 12. Specifically, the screw hole 16 is provided in the fixing piece 15 by burring, and the screw 13 is inserted into the attachment hole 24 of the attachment surface 23 and is inserted into the screw hole 16 of the fixing piece 15 while rotating. As a result, the screw 13 is inserted and at the same time the screw 13 and the screw hole 16 are coupled by screwing. Thus, if the fan motor support plate 4 is fixed to the bottom plate 12 using a self-tap screw as the screw 13, the screw groove is not rotated when the screw hole 16 provided in the fixing piece 15 is formed. As a result, the fan motor support plate 4 is fixed to the bottom plate 12.

In FIG. 6, the opening 19 formed in the bottom plate 12 to form the fixed piece 15 and the

openings

18a and 18b formed in the bottom plate 12 to form the positioning pieces 20a and 20b are indicated by dotted lines. The opening 19 formed after the fixing piece 15 is formed is covered from above by the flat surface 21 of the fan motor support plate 4. Further, the

openings

18a and 18b formed after the positioning pieces 20a and 20b are formed are mostly flat surfaces 21 of the fan motor support plate 4 except for the gaps between the notches 22a and 22b and the positioning pieces 20a and 20b. Covered from above.

In this embodiment, a total of three screw holes 16 are formed in each one of the fixed pieces 15 of the bottom plate 12 (see FIG. 4), but the middle screw hole 16 is not used, and two screw holes 16 at both ends thereof are used. Two screw holes 16 are used to fix the mounting surface 23 of the fan motor support plate 4. When the bottom plate 12 is used in common and the fan motor support plate that is heavier than the fan motor support plate 4 according to this embodiment is fixed, all the three screw holes 16 are used.

FIG. 7 is a cross-sectional view taken along the line ZZ in FIG. 6, and shows the screw-fixed portion viewed from the left side. As described above, the fixing piece 15 is formed by cutting the bottom plate 12 upward from the front side to the back side of the outdoor unit 100. When the cut-and-raised angle at this time is α, the cut-and-raised angle is α ≧ 90 °, and here α = 110 °. Further, in the thickness direction of the bottom plate 12, the surface inside the housing 14 of the outdoor unit 100 is defined as an upper surface 12a, and the surface outside the housing 14 of the bottom plate 12 is defined as a lower surface 12b. Since the fixed plate 15 is formed by cutting the bottom plate 12 upward from the front side toward the back side, the surface on the front side of the fixed plate 15 is the lower surface 12b of the bottom plate 12, that is, outside of the housing 14 before cutting. The surface on the back side of the fixed piece 15 is the upper surface 12a of the bottom plate 12, that is, the surface inside the housing 14, before being cut and raised. Before the cutting and raising, the front surface (lower surface 12b) of the fixing piece 15 which was the lower surface 12b is fixed with the screw 13 in a state where the rear surface of the mounting surface 23 of the fan motor support plate 4 is in contact.

In the assembling process of the outdoor unit 100, the bottom plate 12 and the assembled parts are sent so that the front side faces the assembling worker. Therefore, the assembling worker generally performs the assembling work from the front side of the outdoor unit 100. . In the operation of assembling the fan motor support plate 4 to the bottom plate 12, as described above, the screw 13 is inserted into the mounting hole 24 provided in the fan motor support plate 4 located on the front side, and the screw 13 is inserted into the screw hole 16. Combine. As indicated by the white arrow 28, the screw 13 is inserted into the screw hole 16 of the fixing piece 15 from the front side (lower surface 12 b) to the back side (upper surface 12 a), so that the screw tip 13 a is the upper surface 12 a of the bottom plate 12. It is fixed at the position surrounded by. Thus, if the fixing piece 15 is cut upward from the front side toward the back side and further screwed from the front side, the tip 13a of the screw does not come out of the casing 14, and the casing 14 It is fixed in the state located inside. For this reason, the screw tip 13a, in which the fan motor support plate 4 is fixed to the bottom plate 12 of the housing 14, is not exposed to the outside of the housing 14, and the installation operator touches the screw tip 13a during the installation work. When installed in a ceiling-suspended manner, the external appearance can prevent the user from feeling uncomfortable.

The screw tip 13a is located in a space surrounded by the upper surface 12a of the bottom plate 12 located on the back side of the fixed piece 15 and the rear side surface (upper surface 12a) of the fixed piece 15. Is also suppressed, and the possibility of contact with the tip 13a of the screw of the assembly operator can be reduced.

Further, the

openings

18a, 18b, 19 formed after the bottom plate 12 is cut and raised remain open, so that when the installation worker performs the installation work or when the user is in the vicinity of the outdoor unit 100, the openings 18a, There is a risk that fingers may enter inside 18b and 19.

In this embodiment, the flat surface 21 formed on the engaging portion 26 of the fan motor support plate 4 so as to face the flat surface of the bottom plate 12 cuts and raises the fixed piece 15 to the front side of the fixed piece 15. The fan motor support plate 4 is assembled to the front side of the fixed piece 15 in a state where the entire opening 19 is covered. That is, the opening 19 formed when the fixing piece 15 is formed is closed by the flat surface 21 without remaining open. Since the opening 19 is blocked by the flat surface 21, it is possible to prevent the inside of the casing from being seen from the opening when installed in a ceiling-suspended manner, and the appearance may make the user uncomfortable. It is possible to obtain an outdoor unit of an air conditioner that has no air conditioner. Moreover, since the opening part 19 is covered, it can prevent reliably that a finger | toe enters into the inside from the outside of the housing | casing 14 of an outdoor unit, and can aim at the improvement of safety | security.

The

openings

18a and 18b are also substantially closed by the flat surface 21 of the locking part 26 (see FIG. 6). The

openings

18a and 18b are smaller than the opening 19, but if a small child pranks and thrusts a thin finger or something, it may not be able to be removed. By closing the

openings

18a and 18b, fingers and the like can be reliably prevented from entering from the outside of the housing 14, and an outdoor unit of an air conditioner with higher safety can be obtained.

Also, since the cut-and-raised angle α of the fixed piece 15 is 90 ° or more, for example, 110 °, when assembling this product, the assembling operator inserts the screw 13 from the screw insertion direction 28. For example, the screw 13 is inserted and fixed from the direction of the diagonally upward screw insertion angle θ = 20 °. The screw insertion angle θ indicates an angle from the horizontal line. Since the screw 13 is inserted from obliquely above the horizontal line, the assembly operator on the front side is easy to work, can be easily and reliably screwed, and the productivity is good. By at least setting the cut-and-raised angle α of the fixed piece 15 to 90 ° or more, the screw insertion angle θ ≧ 0 °, and the assembly operator can easily work.

FIG. 8 is an explanatory view for explaining the cut-and-raised angle α of the fixed piece formed by cutting and raising the bottom plate. FIG. 8A shows the fixing piece 31 when the cut-and-raised angle α <90 °, and the insertion direction of the screw is indicated by a white arrow B1. The figure shows α1 = 45 °. When the cut-and-raised angle α <90 °, for example 45 °, it is difficult to assemble the fan motor support plate 4 from the front side to the fixed piece 31 in terms of space. It is also difficult to fix with the screw 13 from the B1 direction. In this case, it is possible to arrange the fan motor support plate 4 on the back side of the fixed piece 31 and to fix the fan motor support plate 4 with the screw 13 from the back side as indicated by an arrow A in terms of space. However, when the screw 13 is inserted from the back side to the front side of the fixed piece 31, it is difficult for the assembly operator to work, and the insertion direction of the screw 13 is directed from the upper surface 12 a of the bottom plate 12 to the lower surface 12 b. For this reason, the front end 13a of the screw is located on the lower surface 12b of the bottom plate 12, and the front end 13a of the screw 13 is exposed to the outside of the outdoor unit housing 14 from the opening 19 due to the cutting and raising. In this case, as with the conventional apparatus, there is a possibility that the fingers of the installation operator of the air conditioner may come into contact with each other, and when the projector is hung from the ceiling, the screw tip 13a is visible to the user.

FIG. 8B shows the fixed piece 32 when the cut-and-raised angle α2 = 90 °, and the insertion direction of the screw is indicated by a white arrow B2. In this case, it is possible in space to assemble the fan motor support plate 4 from the front side to the fixed piece 32. It is also possible to fix with screws 13 from the B2 direction. In this way, when the fan motor support plate 4 is fixed to the fixing piece 32 with the screw 13 by setting the cutting and raising angle α ≧ 90 °, the tip 13 a of the screw 13 is surrounded by the upper surface 12 a of the bottom plate 12 and is outdoors. It is inside the case 14 of the machine and is not exposed to the outside of the case 14. Therefore, it is possible to provide an outdoor unit of an air conditioner that is safe without causing the installation operator's fingers to come in contact and that does not cause discomfort to the user.

FIG. 8 (c) shows the fixing pieces 33 and 34 when the cut-and-raise angles α3 = 110 ° and α4 = 130 °, and the screw insertion direction is indicated by white arrows B3 and B4. The screw insertion directions B3 and B4 are, for example, obliquely above the horizontal line at a screw insertion angle θ = 20 ° to 40 °, and it is easy for an assembly operator on the production line to insert the screw 13 and the workability is good. Since workability is good, the screws can be securely fixed, so that productivity can be improved. When α> 130 °, the strength of the corner portion 35 may be weakened during the cutting and raising process. In this way, considering the workability and workability of fixing the fan motor support plate 4 to the fixing pieces 33 and 34 with the screws 13, the cutting and raising angle α is preferably 110 ° ≦ α ≦ 130 °.

Further, as shown in FIG. 6, the fan motor support plate mounting portion 17 of the bottom plate 12 is provided with positioning pieces 20a and 20b for assembling the fan motor support plate by cutting up and supporting each of the positioning pieces 20a and 20b. The fixing position of the fan motor support plate 4 with respect to the bottom plate 12 is determined by entering the notches 22a and 22b of the plate 4. Positioning pieces 20a and 20b are cut and raised in accordance with the positions of the notches 22a and 22b so that the screw holes 16 provided in the bottom plate 12 and the mounting holes 24 provided in the fan motor support plate 4 are aligned. For this reason, when the fan motor support plate 4 is assembled, the fan motor support plate 4 is positioned in the front-rear direction and the left-right direction by assembling at the positions where the positioning pieces 20a, 20b enter the notches 22a, 22b. 16 and the attachment hole 24 can be matched with high precision. The assembling operator can assemble the screw holes without shifting the screw holes during the assembling work, and the workability can be improved.

Further, the notches 22a and 22b provided in the fan motor support plate 4 are formed by rectangular concave portions provided at the corners on the front side at both ends of the flat surface 21 in the left-right direction. For this reason, the notches 22a and 22b have two sides. If the two sides of the notches 22a and 22b are brought into contact with the positioning pieces 20a and 20b, the two directions of the front-rear direction and the left-right direction can be positioned with higher accuracy.

In the conventional device, there is an apparatus in which an insertion hole into which the positioning piece is inserted is provided so as to be aligned with the positioning piece, but in this embodiment, the positioning is reliably performed with a simple configuration such as a rectangular recess provided in the corner. Can do.

In this embodiment, the machine room 9 is shown on the right side and the blower room 5 is shown on the left side when viewed from the front. However, the present invention is not limited to this and may be arranged in reverse.

As described above, according to the present invention, the heat exchanger 1 disposed on the back surface side in the substantially rectangular parallelepiped housing 14 and the front surface side from the back surface side of the housing 14 disposed on the front surface of the heat exchanger 1. A fan fan 2c for blowing air, a fan motor 2a for driving the fan fan 2c disposed between the heat exchanger 1 and the fan fan 2c, and a fan motor support plate for the bottom plate 12 constituting the bottom portion of the housing 14 A fan motor support plate 4 having a lower end fixed to the portion 17 and provided in a substantially vertical direction toward the top panel 14e of the housing 14, and supporting the fan motor 2a in the middle of the vertical direction, The fan motor support plate mounting portion of the bottom plate 1217 is provided with a fixing piece 15 formed by cutting and raising the bottom plate 12 and a screw hole 16 penetrating the fixing piece 15. Fixed to the lower end 15 is provided, and an engaging portion 26 having an attachment hole 24 penetrating the attachment surface 23 at a position facing the screw hole 16 is provided, and the fan motor support plate 4 supports the fan motor of the bottom plate 12. It is an outdoor unit of an air conditioner that is screwed to the plate mounting portion 17, and the fixed piece 15 is configured by cutting the bottom plate 12 upward from the front side toward the back side, and the front side of the fixed piece 15 The surface on the back side of the mounting surface 23 of the locking portion 26 contacts with the screw 13, and the screw 13 is inserted into the mounting hole 24 from the front side in the housing 14 and coupled to the screw hole 16 of the fixing piece 15. When the installation operator touches the tip 13a of the screw during the installation work or is installed in a ceiling-suspended manner, the external appearance may give the user an unpleasant feeling. To do It can be obtained without outdoor unit 100 of the air conditioner.

In addition, the fixing piece 15 is formed by cutting and raising the bottom plate 12 from the front side toward the back side at an angle of 90 ° or more, so that the assembly operator can easily fix the screw. Outdoor unit 100 can be obtained, and productivity can be improved.

In particular, the fixing piece 15 is formed by cutting and raising the bottom plate 12 from the front side to the back side at an angle of 110 ° to 130 °, thereby ensuring the strength of the cut corner portion 35. The outdoor unit 100 of the air conditioner that can be easily fixed with screws for the assembly operator can be obtained, and the productivity can be improved.

The locking portion 26 provided at the lower end of the fan motor support plate 4 is an opening formed on the front side of the fixed piece 15 of the bottom plate 12 by cutting and raising the bottom plate 12 to form the fixed piece 15. By having the flat surface 21 covering 19, the cut-and-raised opening 19 formed in the bottom plate 12 is closed, and when the installation worker performs the installation work or the user is in the vicinity of the outdoor unit 100. Sometimes, it is possible to reliably prevent a finger or the like from entering the housing 14 from the opening 19 and to obtain the outdoor unit 100 of the air conditioner with high safety.

DESCRIPTION OF SYMBOLS 1 Heat exchanger, 1a Side plane part, 1b Corner part, 1c Back side plane part, 2 Blower, 2a Fan motor, 2b Motor rotating shaft, 2c Blower fan, 3 Fan motor fixed surface, 4 Fan motor support plate, 5 Blower room, 6 compressor, 7 refrigerant piping, 8 electrical box, 9 machine room, 10 partition plate, 11 legs, 12 bottom plate, 12a upper surface, 12b lower surface, 13 screws, 13a screw tip, 14 housing, 14a Front panel, 14b side panel, 14c back panel, 14d side panel, 14e top panel, 15 fixing pieces, 16 screw holes, 17 fan motor support plate mounting part, 18a, 18b opening part, 19 opening part, 20a, 20b positioning Piece, 21 flat surface, 22a, 22b notch, 23 mounting surface, 24 mounting hole 25 Heat exchanger contact part, 26 locking part, 27 latching part, 28 screw insertion direction, 31, 32, 33, 34 fixed piece, 35 corner part, 100 air conditioner outdoor unit, α, α1, α2 , Α3, α4 Cutting angle, θ Screw insertion angle.

Claims

In the housing, a heat exchanger disposed on the back side, a blower fan disposed on the front surface of the heat exchanger and blowing air from the back side to the front side of the housing, and between the heat exchanger and the blower fan The lower end portion is fixed to a fan motor that drives the blower fan and the fan motor support plate mounting portion of the bottom plate that constitutes the bottom surface portion of the casing, and the vertical direction toward the top surface of the casing A fan motor support plate that supports the fan motor in the middle of the vertical direction, and the fan motor support plate mounting portion of the bottom plate is formed by cutting and raising the bottom plate upward. A fixing piece and a screw hole penetrating the fixing piece are provided, and a lower end portion of the fan motor support plate has an attachment surface attached to the fixing piece, and the attachment surface at a position facing the screw hole. Penetrate Engaging portion is provided with a mounting hole, and said a fan motor support plate outdoor unit of an air conditioner which is screwed to the fan motor support plate mounting portion of the bottom plate,
The fixed piece is configured by cutting the bottom plate upward from the front side toward the back side,
A surface on the back side of the mounting surface of the locking portion contacts the front side of the fixed piece, and a screw is inserted through the mounting hole from the front side in the housing to be coupled to the screw hole of the fixed piece. Accordingly, the tip of the screw is located between the inner surface of the bottom plate located on the back side of the fixed piece and the rear side surface of the fixed piece. Harmonic outdoor unit.
The outdoor unit for an air conditioner according to claim 1, wherein the fixed piece is formed by cutting and raising the bottom plate upward from the front side toward the back side at an angle of 90 ° or more.
The locking portion provided at the lower end portion of the fan motor support plate covers an opening formed on the front side of the fixed piece of the bottom plate by cutting and raising the bottom plate to form the fixed piece. The outdoor unit for an air conditioner according to claim 1 or 2, wherein the outdoor unit has a flat surface.