WO2018154686A1

WO2018154686A1 - Outdoor unit for air conditioner

Info

Publication number: WO2018154686A1
Application number: PCT/JP2017/006908
Authority: WO
Inventors: 隼人栗野; 久保野　俊行
Original assignee: 三菱電機株式会社
Priority date: 2017-02-23
Filing date: 2017-02-23
Publication date: 2018-08-30
Also published as: CN110291333A; JP6808013B2; US20190368753A1; EP3587941A1; JPWO2018154686A1; EP3587941B1; EP3587941A4

Abstract

Provided is an outdoor unit for an air conditioner, which requires no space thereabove, is installed by simple work, has less noise, and is highly reliable. This outdoor unit for an air conditioner is configured such that: the upper engagement section of a fan guard has an upper end which is bent toward a housing and which extends upward; the lower engagement section of the fan guard has a lower end which is bent toward the housing; a lower engagement section front end which is the front end-side part of the lower engagement section is bent so that the tip of the lower engagement section front end is directed downward; a front surface panel is provided with an upper temporary affixation groove in which the upper engagement section is inserted and which prevents the upper engagement section from moving in the left-right direction, the front surface panel being also provided with a lower temporary affixation hole in which the lower engagement section is inserted and which prevents the lower engagement section from moving forward and downward, the upper temporary affixation groove and the upper engagement section being covered with the top surface panel.

Description

Air conditioner outdoor unit

The present invention relates to an outdoor unit of an air conditioner, and particularly relates to a fan guard mounting structure.

Conventionally, an outdoor unit of an air conditioner having a fan guard that covers a blowing opening of an air passage for blowing is known. By providing a fan guard, the user is prevented from touching the rotating fan from the blowout opening. For example, Patent Document 1 discloses a configuration in which, in an outdoor unit, a fan guard is slid and fitted into grooves on both side surfaces of a housing from above. In this configuration, the fan guard is fixed by covering the top panel, and fixing with screws is unnecessary.

JP 2000-039186 A

In the configuration of Patent Document 1, there is a restriction that the fan guard cannot be attached or detached unless the fan guard is moved upward by the height of the fan guard, and the height of the fan guard is above the outdoor unit. Space is required. When the outdoor unit is hung on the veranda of the apartment, there is a problem that a work space for attaching or removing the fan guard cannot be secured.

Also, in order to smoothly slide the fan guard along the groove of the housing, a gap is required in the front / rear and left / right directions of the slide part. However, if there is a gap, the blown air comes into contact with the fan guard during operation, causing a problem that the fan guard repeatedly vibrates in the gap with the casing and generates abnormal noise.

The present invention has been made in order to solve the above-described problems, and it is not necessary to secure a work space upward in mounting the fan guard, and the work is simplified and the operation is simplified. An object is to propose an outdoor unit of an air conditioner that is excellent in reliability and is suppressed in abnormal noise.

An outdoor unit of an air conditioner according to the present invention includes a front panel and a top panel, and is configured by combining a casing having an opening formed in the front panel, a plurality of vertical bars, and a plurality of horizontal bars. A fan guard covering the opening, wherein the fan guard is located at one central portion of the vertical rails or at least two vertical rails located apart in the left-right direction of the housing. An upper locking portion formed at an upper end portion of the housing, and a lower locking portion formed at the lower end portions of the plurality of vertical bars that are spaced apart in the left-right direction of the housing, and the upper locking portion. Is formed by bending the upper end portion in the direction of the housing and further bending upward, and the lower locking portion is formed by bending the lower end portion in the direction of the housing, The tip of the lower locking part, which is the tip side of the lower locking part, The front panel is inserted with the upper locking portion, the upper temporary fixing groove portion for restricting the movement of the upper locking portion in the left-right direction, and the lower locking portion are inserted, A lower temporary fixing hole for restricting the forward movement and the downward movement of the lower locking portion, and the upper temporary fixing groove and the upper locking portion are covered by the top panel.

According to the present invention, the lower locking portion of the fan guard is inserted into the lower temporary fixing hole portion of the front panel, the upper locking portion is inserted into the upper temporary fixing groove portion, and the fan guard is temporarily fixed. The fan guard is permanently fixed to the housing. Therefore, it is not necessary to fix the fan guard with a screw or to move the fan guard upward, the work space is suppressed, and the workability of attaching and detaching the fan guard is improved. Furthermore, since the fan guard is restricted from moving in the left-right direction by the lower temporary fixing hole and the upper temporary fixing groove, and the forward movement is restricted by the top panel, vibration during operation is suppressed and vibration is reduced. It is also possible to prevent abnormal noise due to.

It is a perspective view of the outdoor unit of the air conditioner which concerns on embodiment of this invention. It is a mimetic diagram showing the longitudinal section containing the central axis of the fan of the outdoor unit of the air harmony machine concerning an embodiment of the invention. It is a disassembled perspective view of the state which removed the fan guard and top panel of the outdoor unit of the air conditioner concerning an embodiment of the invention. FIG. 4 is an enlarged view of part A in FIG. 3, in which the periphery of the upper temporary fixing groove on the upper right side is enlarged toward the front panel. FIG. 4 is an enlarged view of a portion B in FIG. 3, in which the periphery of a lower temporary fixing hole portion on the lower right side toward the front panel is enlarged. It is a perspective view which shows the fan guard of the outdoor unit of the air conditioner which concerns on embodiment of this invention. It is an enlarged view around the lower latching | locking part of the fan guard of the outdoor unit of the air conditioner which concerns on embodiment of this invention. FIG. 8 is a schematic diagram of a CC cross section of FIG. 7. It is an enlarged view of the upper locking part periphery of the state which removed the top | upper surface panel of the outdoor unit of the air conditioner which concerns on embodiment of this invention. It is an enlarged view of the upper locking part periphery of the state to which the top | upper surface panel of the outdoor unit which concerns on embodiment of this invention was attached. FIG. 10 is a schematic diagram of a DD section in FIG. 9. It is a schematic diagram of the EE cross section of FIG. It is a schematic diagram which shows the outdoor unit of the air conditioner which concerns on the modification of embodiment of this invention.

Embodiment.
Hereinafter, embodiments of an outdoor unit 100 for an air conditioner according to the present invention will be described. In addition, the form of drawing is an example and does not limit this invention. Moreover, what attached | subjected the same code | symbol in each figure is the same or it corresponds, and this is common in the whole text of a specification. Furthermore, in the following drawings, the relationship of the size of each component may be different from the actual one.

<Overall configuration of outdoor unit 100>
FIG. 1 is a perspective view of an outdoor unit 100 for an air conditioner according to an embodiment of the present invention. As illustrated in FIG. 1, the outdoor unit 100 includes, for example, a rectangular parallelepiped housing 10. The housing 10 includes a front panel 1 on the front side, a side panel 2 on the side, a top panel 3 on the top, and a back panel 6 that constitutes the back and the side facing the side panel 2. It is equipped with. The front panel 1 of the outdoor unit 100 is provided with an opening 1a serving as an air passage. The opening 1a is covered from the outside of the housing 10 by a fan guard 5 on the front side. The top panel 3 has a lid shape with side edges 3 a extending downward on the four sides, and covers the top surface side of the housing 10. In addition, the structure of the housing | casing 10 of the outdoor unit 100 is not restricted only to said structure, It can change suitably. Each panel which comprises the housing | casing 10 of the outdoor unit 100, such as the front panel 1, may be integrally formed in combination. Each panel may be constituted by a plurality of separate panels. In the following description, the side of the housing 10 where the front panel 1 is disposed is “front”, the rear panel 6 side of the housing 10 facing the front panel 1 is “rear”, and the front of the housing 10 The left and right directions toward the panel 1 are “left” and “right”. Further, the top panel 3 side of the casing 10 is “upper”, and the side where the surface of the casing 10 facing the top panel 3 is located is “lower”.

FIG. 2 is a schematic diagram showing a longitudinal section including the central axis of the fan 4 of the outdoor unit 100 of the air conditioner according to the present embodiment. As shown in FIG. 2, the fan 4 is disposed inside the housing 10. A motor 8 is attached to the center of the fan 4. The motor 8 is attached to a fixing member 7 installed inside the housing 10. A heat exchanger 15 is disposed on the rear panel 6 side of the fan 4 and the motor 8. The rear panel 6 is provided with an air inlet 6 a that opens along the heat exchanger 15. When the fan 4 is rotationally driven by the motor 8, the outside air flows from the air suction port 6a and is introduced into the housing 10 from the back side. And the air heat-converted between the refrigerant | coolants with the heat exchanger 15 blows off from the opening part 1a of the front panel 1. FIG.

<Configuration of front panel 1>
FIG. 3 is an exploded perspective view of the outdoor unit 100 of the air conditioner according to the present embodiment with the fan guard 5 and the top panel 3 removed. As shown in FIG. 3, the front panel 1 is formed with an upper temporary fixing groove 1b for temporarily fixing the fan guard 5 above the opening 1a. Similarly, a lower temporary fixing hole 1c is formed below the opening 1a. The upper temporary fixing groove portion 1b and the lower temporary fixing hole portion 1c are respectively arranged at two positions on the left and right sides of the opening 1a toward the front panel 1 at positions symmetrical with respect to the center.

FIG. 4 is an enlarged view of part A in FIG. 3, in which the periphery of the upper temporary fixing groove 1 b on the upper right side toward the front panel 1 is enlarged. Note that the periphery of the upper temporary fixing groove portion 1b on the upper left side toward the front panel 1 has the same structure as that of the structure of the upper temporary fixing groove portion 1b in FIG. As shown in FIG. 4, the upper temporary fixing groove 1b is smoothly connected to the surface 1h of the front panel 1 at the left and

right edges

1d and 1e, and is open toward the front. The left and

right edge portions

1d and 1e are connected in a cylindrical shape that is recessed from the front surface 1h to the back surface, and the upper temporary fixing groove portion 1b has a curved shape. The upper temporary fixing groove 1b is formed by plastically deforming a member such as a sheet metal constituting the front panel 1, for example.

FIG. 5 is an enlarged view of a portion B in FIG. 3, in which the periphery of the lower temporary fixing hole portion 1 c on the lower right side toward the front panel 1 is enlarged. Note that the periphery of the lower temporary fixing hole portion 1c on the lower left side toward the front panel 1 has the same structure as that of the structure of the lower temporary fixing hole portion 1c in FIG. As shown in FIG. 5, the lower temporary fixing hole portion 1 c is formed by opening a groove 1 n that is formed in the front surface 1 h of the front panel 1 and that is long in the vertical direction at the lower end portion. The lower temporary fixing hole portion 1c includes a lower edge portion 1p that protrudes forward and an upper edge portion 1q that is recessed rearward. The lower temporary fixing hole portion 1c faces upward in the housing 10 at the end of the lower temporary fixing hole portion 1c. ing.

<Configuration of fan guard 5>
FIG. 6 is a perspective view showing fan guard 5 of outdoor unit 100 of the air conditioner according to the present embodiment. As shown in FIG. 6, the fan guard 5 is configured by combining a plurality of horizontal bars 5a and a plurality of vertical bars 5b. The horizontal beam 5a and the vertical beam 5b are composed of, for example, wire members. A plurality of the horizontal bars 5a are arranged at predetermined intervals in the vertical direction, and each is provided in the horizontal direction. A plurality of vertical bars 5b are arranged at predetermined intervals in the left-right direction, and each is provided in the up-down direction. The horizontal beam 5a and the vertical beam 5b are provided so as to intersect with each other in a perpendicular direction.

The vertical beam 5b is separated from the first vertical beam 51b arranged in two locations in the left-right direction of the housing 10 and two sites separated in the left-right direction of the housing 10 and closer to the center than the first vertical beam 51b. The 2nd vertical crosspiece 52b arrange | positioned in this is included.

The first vertical beam 51b is provided with an upper locking portion 51b2 which is bent in the direction of the housing 10 at the upper end portion and further has its tip portion bent upward. Further, a lower locking portion 51b5 is provided at the lower end portion of the first vertical crosspiece 51b. It has been.

The second vertical beam 52b is provided with contact portions 52b3 at the upper end portion and the lower end portion. The abutting portion 52b3 is bent toward the housing 10, and the front end is oriented at an angle close to perpendicular to the surface 1h of the front panel 1.

In addition, the specific number of the horizontal beam 5a and the vertical beam 5b is not limited to the illustrated number. Further, the positions of the first vertical bars 51b and the second vertical bars 52b are not limited to the illustrated positions. The first vertical bars 51b are not limited to two places, and may be arranged at one place in the central portion in the left-right direction of the housing 10 or at three or more places. The second vertical bars 52b are not limited to two places, and may be arranged at one or more places in the center. However, it is desirable that both the first vertical beam 51b and the second vertical beam 52b are equally arranged in the left-right direction with respect to the center of the fan guard 5. The fan guard 5 may be made of resin instead of a metal wire.

FIG. 7 is an enlarged view of the periphery of the lower locking portion 51b5 of the fan guard 5 of the outdoor unit 100 of the air conditioner according to the present embodiment. FIG. 8 is a schematic diagram of the CC cross section of FIG. 7, and shows a cross section when the casing 10 is cut in the front-rear direction so as to pass through the center of the lower temporary fixing hole 1c. In FIG. 8, the part shown with a dotted line has shown the contact part 52b3 located in the back | inner side rather than the 1st vertical crosspiece 51b.

As shown in FIGS. 7 and 8, the lower locking portion 51b5 is inserted into the lower temporary fixing hole 1c of the front panel 1, and the lower locking portion distal end portion 51b4 on the distal end side is located on the inner side of the housing 10. The front panel 1 is parallel to the surface 1h. The lower locking portion front end portion 51b4 is located behind the lower edge portion 1p of the lower temporary fixing hole portion 1c and ahead of the upper edge portion 1q. The forward movement of the housing 10 by the fan guard 5 is restricted by the contact between the lower locking portion tip 51b4 and the lower edge 1p. At this time, a force from the housing 10 toward the fan guard 5 acts on the lower locking portion distal end portion 51b4.

As shown by a dotted line in FIG. 8, the contact portion 52b3 is provided at the lower end of the second vertical beam 52b. The abutting portion 52b3 abuts on the surface 1h of the front panel 1 and restricts the rearward movement of the fan guard 5. A force from the fan guard 5 toward the housing 10 acts by the contact portion 52b3. The force applied to the fan guard 5 when the contact portion 52b3 contacts the housing 10 is opposite to the force applied to the fan guard 5 when the lower locking portion distal end portion 51b4 contacts the housing 10.

FIG. 9 is an enlarged view of the periphery of the upper locking portion 5b2 in a state where the top panel 3 of the outdoor unit 100 of the air conditioner according to the present embodiment is removed. FIG. 10 is an enlarged view of the periphery of the upper locking portion 51b2 in a state where the top panel 3 of the outdoor unit 100 according to the present embodiment is attached. As shown in FIGS. 9 and 10, the upper locking portion 51 b 2 of the fan guard 5 is embedded in the upper temporary fixing groove portion 1 b formed in the front panel 1. And the upper latching | locking part 51b2 is covered with the side edge part 3a of the top | upper surface panel 3 covered on the upper part.

FIG. 11 is a schematic diagram of the DD section of FIG. The DD cross section is a cross section obtained by cutting the housing 10 in the left-right direction, and is a cross section passing through the center of the upper temporary fixing groove 1b. FIG. 12 is a schematic diagram of the EE cross section of FIG. The EE cross section is a cross section obtained by cutting the housing 10 in the front-rear direction, and is a cross section passing through the center of the upper temporary fixing groove 1b.

As shown in FIGS. 11 and 12, the upper locking portion 51b2 is press-fitted into the upper temporary fixing groove portion 1b, and is sandwiched between the side edge portion 3a of the top panel 3 and the surface 1h of the front panel 1. Yes. The upper temporary fixing groove 1b is formed to have a width equal to the diameter of the wire constituting the upper locking portion 51b2, and restricts the movement of the upper locking portion 51b2 in the left-right direction. In addition, what is necessary is just to select the width | variety which can hold | maintain the upper latching | locking part 51b2 suitably for the width | variety of the upper temporary fixing groove part 1b. By setting the width smaller than the diameter of the wire, the upper locking portion 51b2 can be held more firmly.

The upper temporary fixing groove 1b is formed to a depth equal to the diameter of the wire of the upper locking portion 51b2, and is sandwiched between the side edge 3a of the top panel 3 and the surface 1h of the front panel 1. The movement of the locking portion 51b2 in the front-rear direction is restricted. In the upper locking portion 51b2, the portion of the upper temporary fixing groove portion 1b that is exposed from the opening is pressed by the side edge portion 3a of the top panel 3, and the forward movement is restricted. Further, the rearward movement of the upper locking portion 51b2 is restricted by the upper temporary fixing groove portion 1b having a shape recessed toward the back surface. Note that the depth of the upper temporary fixing groove 1b may be any depth as long as the upper locking portion 51b2 can be sandwiched between the side edge 3a of the top panel 3 and the front surface 1h of the front panel 1. The depth may be smaller than the diameter.

In the fan guard 5, the upper locking portion 51b2 is press-fitted into the upper temporary fixing groove portion 1b to restrict the right and left movement, and the fan guard 5 is sandwiched between the front panel 1 and the top panel 3 to restrict the front and rear movement. Therefore, the fan guard 5 is prevented from moving due to vibration during operation of the air conditioner, and the generation of abnormal noise is reduced.

<Installation procedure of fan guard 5>
The fan guard 5 is attached at a stage before the top panel 3 is attached to the housing 10.
First, the fan guard 5 is positioned in front of the front panel 1 with the upper locking portion 51b2 of the fan guard 5 facing up and the lower locking portion 51b5 facing down. At this time, the upper end of the upper locking portion 51b2 is tilted forward of the housing 10 and the fan guard 5 is tilted. And the lower latching | locking part front-end | tip part 51b4 of the lower latching | locking part 51b5 is adjoined to the lower part of the front panel 1, and it inserts in the lower temporary fixing hole 1c formed in the front panel 1, and lower locking part 51b5 and lower temporary fixing The hole 1c is engaged.

Next, the fan guard 5 is rotated in a direction in which the upper end portion of the upper locking portion 51b2 approaches the upper portion of the front panel 1 with the lower locking portion 51b5 as a fulcrum. And the upper latching | locking part 51b2 is moved to the position of the upper temporary fixing groove part 1b formed in the front panel 1. FIG. At this time, since the lower locking portion 51b5 contacts the lower edge 1p of the lower temporary fixing hole portion 1c and the movement in the front-rear direction and the downward direction is restricted, the upper locking portion 51b2 follows a predetermined track. The position of the upper temporary fixing groove 1b can be surely reached.

Next, the upper locking portion 51b2 is pushed into the front panel 1 while being brought into contact with the lower edge 1p of the upper temporary fixing groove 1b, and is fitted into the upper temporary fixing groove 1b. Thereby, the upper latching | locking part 51b2 and the upper temporary fixing groove part 1b engage. The upper temporary fixing groove portion 1b is desirable when the lower edge 1p is a curved surface 1f, because the upper locking portion 51b2 moves along the curved surface 1f, and the engagement with the upper temporary fixing groove portion 1b becomes easy.

The upper locking portion 51b2 and the lower locking portion 51b5 of the fan guard 5 are engaged with the upper temporary fixing groove portion 1b and the lower temporary fixing hole portion 1c, respectively, so that the fan guard 5 is preliminarily placed at a predetermined position of the housing 10. To be temporarily fixed.

When the fan guard 5 is temporarily fixed, the upper locking portion 51b2 is inserted into the upper temporary fixing groove portion 1b, and movement in the front-rear direction and the left-right direction is restricted. The fan guard 5 has an upper locking portion 51b2 press-fitted into the upper temporary fixing groove 1b. Therefore, the fan guard 5 is not tilted forward of the housing 10 and the state of being attached to the housing 10 is maintained. Therefore, the worker does not have to hold it.

Finally, the top panel 3 is disposed above the housing 10 to which the fan guard 5 is temporarily fixed, and the side edges 3a on the four sides of the top panel 3 are fitted into the top of the housing 10 so that the housing 10 is Cover with the top panel 3. Accordingly, the upper locking portion 51b2 of the fan guard 5 is sandwiched between the side edge portion 3a of the top panel 3 and the surface 1h of the front panel 1, and the fan guard 5 is permanently fixed to the housing 10. Then, the attachment of the fan guard 5 is completed.

Since the fan guard 5 is permanently fixed by the top panel 3, it is possible to prevent the fan guard 5 from dropping forward when a large impact is applied to the housing 10. In addition, the upper and lower locking portions 51b2 and 51b5 of the fan guard 5 are restricted from moving back and forth and left and right, so that vibration during operation is suppressed and noise caused by the vibration is reduced. In addition, the top panel 3 is disposed from the gap above the housing 10 and the fan guard 5 is permanently fixed by covering the housing 10, so that the occupied space at the time of attachment can be suppressed. Furthermore, since fastening with screws is unnecessary, the mounting is simplified.

When removing, remove the top panel 3 so that the fan guard 5 is temporarily fixed. Then, the upper locking portion 51b2 is pulled out from the upper temporary fixing groove portion 1b and rotated in the direction in which the upper end portion of the fan guard 5 is moved forward, and then the fan guard 5 is lifted upward from the lower temporary fixing hole portion 1c. The lower locking part 51b5 is pulled out. Thereby, the removal of the fan guard 5 is completed.

In this case, a tool for releasing the screw is not necessary. Further, even if the fan guard 5 is permanently fixed, it can be maintained in a temporarily fixed state unless it is pulled out from the upper temporary fixing groove 1b. Therefore, improvement in workability can also be expected in removal.

In the above description, the case where both the upper locking portion 51b2 and the lower locking portion 51b5 are provided on the first vertical beam 51b has been described. However, the upper locking portion 51b2 and the lower locking portion The part 51b5 may be provided on a different vertical beam. It is desirable that the upper locking portion 51b2 and the lower locking portion 51b5 are provided at symmetrical positions because the forces acting on the fan guard 5 are balanced. Further, the upper locking portion 51b2 may be provided at least at one longitudinal beam in the central portion.

<Modification>
FIG. 13 is a schematic diagram showing an outdoor unit 100 of an air conditioner according to a modification of the present embodiment, and corresponds to a schematic diagram of a DD section of FIG. 9 in the embodiment. The outdoor unit 100 of the air conditioner according to the modification includes a protrusion 11b2 formed in the upper temporary fixing groove 11b of the front panel 1. In FIG. 13, a DD section is a section obtained by cutting the housing 10 in the left-right direction, and is a section passing through the center of the upper temporary fixing groove portion 11b.

As shown in FIG. 13, in the modification, the upper temporary fixing groove 11b has a protrusion 11b2 formed on the front side. The protruding portion 11b2 is formed in the cut shape of the recessed shape of the upper temporary fixing groove portion 11b, for example, along a part in the longitudinal direction of the upper temporary fixing groove portion 11b or along the ridge line 11b1 of the cut surface. The circle diameter drawn by the inner wall surface 1b3 of the upper temporary fixing groove 11b and the tangent line of the protrusion 11b2 is equal to the diameter of the upper locking portion 51b2.

When the upper locking portion 51b2 is press-fitted into the upper temporary fixing groove portion 11b, the upper locking portion 51b2 is held by the protruding portion 11b2, and the movement in the left-right direction and the forward direction is suppressed. By providing such a protruding portion 11b2, it is possible to prevent the upper locking portion 51b2 from being detached from the upper temporary fixing groove portion 11b. Further, for example, even when the outdoor unit 100 is manufactured without dimensional control for press-fitting, the upper locking portion 51b2 is held, and movement in the left-right direction and the front-rear direction due to vibration is restricted. be able to.

According to the outdoor unit 100 of the air conditioner according to the present embodiment described above, the fan guard 5 includes the upper locking portion 51b2 and the lower locking portion 51b5, and the upper temporary fixing groove portion 1b of the front panel 1. And temporarily fixed to the housing 10 by being inserted into the lower temporary fixing hole 1c. The fan guard 5 is permanently fixed by covering the casing 10 to which the fan guard 5 is temporarily fixed with the top panel 3. In the temporarily fixed state, the upper locking portion 51b2 is restricted from moving in the vertical direction by the upper temporary fixing groove portion 1b, and the lower locking portion 51b5 is restricted from moving in the vertical and front-back directions by the lower temporary fixing hole portion 1c. Has been. This eliminates the need for the operator to hold the fan guard 5. Further, in the final fixed state, the upper locking portion 51 b 2 is restricted from moving in the front-rear direction by the top panel 3 and the front panel 1. Therefore, vibration during driving can be suppressed and abnormal noise can be reduced. Further, both the temporary fixing and the main fixing do not require fastening with screws, the mounting work can be easily performed, and the detachability of the fan guard 5 is improved. In addition, since the casing 10 is covered and fixed by the top panel 3, the work space to be secured above the casing 10 may be small. Further, since the main guard is fixed in a temporarily fixed state, it is not necessary to hold the fan guard 5 when the fan guard 5 is removed.

The upper temporary fixing groove 1b is an opening facing forward, and can be inserted by pushing the upper locking portion 51b2. Therefore, it is easy to mount and no fixing member such as a screw is required.

Further, since the upper temporary fixing groove 1b has a cylindrical shape, the upper locking portion 51b2 moved along the curved surface 1f reaches the upper temporary fixing groove 1b and can be engaged therewith.

Further, by making the width of the upper temporary fixing groove 1b equal to or smaller than the diameter of the upper locking portion 51b2, the left and right direction of the upper locking portion 51b2 press-fitted into the upper temporary fixing groove 1b Can be controlled and retained.

Also, the protrusions 11b2 of the upper temporary fixing groove 11b can prevent the upper locking portion 51b2 from being detached from the upper temporary fixing groove 11b. Furthermore, even when the outdoor unit 100 is manufactured without dimensional control for press-fitting, the upper locking portion 51b2 can be held and the movement in the left-right direction and the front-rear direction due to vibration can be restricted. it can.

Further, since the lower temporary fixing hole portion 1c opens upward and the lower locking portion 51b5 is inserted into the lower temporary fixing hole portion 1c, when the lower locking portion 51b5 moves, the lower temporary fixing hole portion 1c contacts the lower temporary fixing hole portion 1c. The movement of the fan guard 5 in the front-rear and left-right directions is restricted.

Further, when the lower locking portion 51b5 moves forward by the lower edge portion 1p located on the front side of the upper edge portion 1q of the lower temporary fixing hole portion 1c, the lower locking portion 51b5 comes into contact with the lower edge portion 1p. Is restricted from moving forward.

Further, the abutting portion 52b3 of the fan guard 5 and the lower locking portion front end portion 51b4 abut against the casing 10, and respectively apply opposing forces to the fan guard 5. For this reason, the forward movement of the fan guard 5 is restricted by the contact portion 52b3, the backward movement is restricted by the lower locking portion 51b5, and the movement due to vibration of the fan guard 5 is reduced.

1 front panel, 1a opening, 1b upper temporary fixing groove, 1b3 inner wall, 1c lower temporary fixing hole, 1d, 1e edge, 1f curved surface, 1h surface, 1n groove, 1p lower edge, 1q upper edge 2, side panel, 3 top panel, 3a side edge, 4 fan, 5 fan guard, 5a horizontal beam, 5b vertical beam, 6 back panel, 6a air inlet, 7 fixing member, 8 motor, 10 housing, 11b Upper temporary fixing groove part, 11b1 ridgeline, 11b2 protrusion, 15 heat exchanger, 51b first vertical beam, 51b2 upper locking part, 51b4 lower locking part tip, 51b5 lower locking part, 52b second vertical beam, 52b3 contact part, 100 outdoor unit.

Claims

A housing including a front panel and a top panel, wherein an opening is formed in the front panel;
A plurality of vertical rails and a plurality of horizontal rails are combined, and a fan guard covering the opening,
The fan guard is
An upper locking portion formed at one upper portion of the vertical beam at one location in the center of the vertical beam, or at least two vertical beams positioned in the left-right direction of the housing;
A lower locking portion formed at the lower end portion of the plurality of vertical bars located apart in the left-right direction of the housing, and
The upper locking portion is
The upper end is bent in the direction of the housing, and further bent upward.
The lower locking portion is
The lower end is formed by bending in the direction of the housing,
The lower locking portion tip which is a portion on the tip side of the lower locking portion,
Bends so that the tip is pointing down,
The front panel is
The upper locking portion is inserted, and an upper temporary fixing groove portion that restricts movement of the upper locking portion in the left-right direction;
The lower locking portion is inserted, and a lower temporary fixing hole portion that restricts the forward and downward movement of the lower locking portion, and
The upper temporary fixing groove and the upper locking portion are covered by the top panel,
Air conditioner outdoor unit.
The upper temporary fixing groove is
Opening toward the front of the housing,
The outdoor unit of the air conditioner according to claim 1.
The upper temporary fixing groove has a curved surface that is recessed in a cylindrical shape.
The outdoor unit of the air conditioner according to claim 1 or 2.
The width of the upper temporary fixing groove is
Same as the width of the upper locking part or smaller than the width of the upper locking part,
The outdoor unit for an air conditioner according to any one of claims 1 to 3.
The upper temporary fixing groove is
In the front of the upper temporary fixing groove, there is a protrusion,
The outdoor unit for an air conditioner according to any one of claims 1 to 3.
The lower temporary fixing hole is
Open upwards,
The outdoor unit for an air conditioner according to any one of claims 1 to 5.
The lower temporary fixing hole is
Formed by a lower edge located on the lower side of the front panel and an upper edge located on the upper side of the front panel;
The lower edge is on the front side of the housing from the upper edge,
The outdoor unit for an air conditioner according to any one of claims 1 to 6.
Provided at the lower end portion of the vertical rail where the lower locking portion is not formed, further comprising a contact portion that contacts the surface of the front panel;
By the force acting on the fan guard due to the contact between the contact portion and the surface of the front panel, and the contact between the front end of the lower temporary fixing hole and the lower temporary fixing hole portion The force acting on the fan guard is opposed,
The outdoor unit for an air conditioner according to any one of claims 1 to 7.